chore: update web pages

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

.gitignore

@@ -0,0 +1,33 @@
+# Wildcard + in any subdir.
+*.o
+*.gcno
+*.gcda
+*.[ch].gcov
+
+# Exact filename in any subdir.
+.deps
+.dirstamp
+Makefile
+Makefile.in
+
+# Exact wildcard, e.g., not in subdirs.
+/tests/*.log
+/tests/*.trs
+
+# Exact match, if a directory then everything in directory.
+/.version
+/aclocal.m4
+/autom4te.cache/
+/config.h
+/config.h.in
+/config.log
+/config.status
+/configure
+/dhcpd-pools
+/INSTALL
+/libtool
+/m4/
+/man/dhcpd-pools.1
+/stamp-h1
+/test-suite.log
+/tests/outputs/

.mailmap

@@ -0,0 +1,2 @@
+Sami Kerola <kerolasa@iki.fi>
+Sami Kerola <kerolasa@iki.fi> <sami.kerola@tomtom.com>

AUTHORS

@@ -1 +1 @@
-See files THANKS and ChangeLog.
+See THANKS file.

COPYING

@@ -1,674 +1,34 @@
-                    GNU GENERAL PUBLIC LICENSE
+/*
-                       Version 3, 29 June 2007
+ * The dhcpd-pools has BSD 2-clause license which also known as "Simplified
-
+ * BSD License" or "FreeBSD License".
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ *
- Everyone is permitted to copy and distribute verbatim copies
+ * Copyright 2006- Sami Kerola. All rights reserved.
- of this license document, but changing it is not allowed.
+ *
-
+ * Redistribution and use in source and binary forms, with or without
-                            Preamble
+ * modification, are permitted provided that the following conditions are
-
+ * met:
-  The GNU General Public License is a free, copyleft license for
+ *
-software and other kinds of works.
+ *    1. Redistributions of source code must retain the above copyright
-
+ *       notice, this list of conditions and the following disclaimer.
-  The licenses for most software and other practical works are designed
+ *
-to take away your freedom to share and change the works.  By contrast,
+ *    2. Redistributions in binary form must reproduce the above copyright
-the GNU General Public License is intended to guarantee your freedom to
+ *       notice, this list of conditions and the following disclaimer in the
-share and change all versions of a program--to make sure it remains free
+ *       documentation and/or other materials provided with the
-software for all its users.  We, the Free Software Foundation, use the
+ *       distribution.
-GNU General Public License for most of our software; it applies also to
+ *
-any other work released this way by its authors.  You can apply it to
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-your programs, too.
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-  When we speak of free software, we are referring to freedom, not
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS OR
-price.  Our General Public Licenses are designed to make sure that you
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-have the freedom to distribute copies of free software (and charge for
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+ *
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-  For example, if you distribute copies of such a program, whether
+ */
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-excuse you from the conditions of this License.  If you cannot convey a
-covered work so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you may
-not convey it at all.  For example, if you agree to terms that obligate you
-to collect a royalty for further conveying from those to whom you convey
-the Program, the only way you could satisfy both those terms and this
-License would be to refrain entirely from conveying the Program.
-
-  13. Use with the GNU Affero General Public License.
-
-  Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU Affero General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the special requirements of the GNU Affero General Public License,
-section 13, concerning interaction through a network will apply to the
-combination as such.
-
-  14. Revised Versions of this License.
-
-  The Free Software Foundation may publish revised and/or new versions of
-the GNU General Public License from time to time.  Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<http://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.

ChangeLog

@@ -1,3 +1,6 @@
+The end of ChangeLog; Fri Jan 21 18:15:50 2011 +0100
+See "git log" for change information.
+
 2011-01-21  Sami Kerola  <kerolasa@iki.fi>
 	* Autoreconf done & PACKAGE_URL introduced.
 	* PACKAGE_URL introduced to configure.ac
@@ -20,7 +23,7 @@
 
 2009-05-14  Dan Thorson
         * Memory boundary check. Lack of this caused illegal memory
-	  refrences when there was plenty of backup leases.
+	  references when there was plenty of backup leases.
 
 2009-02-18  Sami Kerola  <kerolasa@iki.fi> && Dan Thorson
 	* posix_fadvice to make read-ahead quicker. (SK)

INSTALL

@@ -1,291 +0,0 @@
-Installation Instructions
-*************************
-
-Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
-2006, 2007, 2008 Free Software Foundation, Inc.
-
-   This file is free documentation; the Free Software Foundation gives
-unlimited permission to copy, distribute and modify it.
-
-Basic Installation
-==================
-
-   Briefly, the shell commands `./configure; make; make install' should
-configure, build, and install this package.  The following
-more-detailed instructions are generic; see the `README' file for
-instructions specific to this package.
-
-   The `configure' shell script attempts to guess correct values for
-various system-dependent variables used during compilation.  It uses
-those values to create a `Makefile' in each directory of the package.
-It may also create one or more `.h' files containing system-dependent
-definitions.  Finally, it creates a shell script `config.status' that
-you can run in the future to recreate the current configuration, and a
-file `config.log' containing compiler output (useful mainly for
-debugging `configure').
-
-   It can also use an optional file (typically called `config.cache'
-and enabled with `--cache-file=config.cache' or simply `-C') that saves
-the results of its tests to speed up reconfiguring.  Caching is
-disabled by default to prevent problems with accidental use of stale
-cache files.
-
-   If you need to do unusual things to compile the package, please try
-to figure out how `configure' could check whether to do them, and mail
-diffs or instructions to the address given in the `README' so they can
-be considered for the next release.  If you are using the cache, and at
-some point `config.cache' contains results you don't want to keep, you
-may remove or edit it.
-
-   The file `configure.ac' (or `configure.in') is used to create
-`configure' by a program called `autoconf'.  You need `configure.ac' if
-you want to change it or regenerate `configure' using a newer version
-of `autoconf'.
-
-The simplest way to compile this package is:
-
-  1. `cd' to the directory containing the package's source code and type
-     `./configure' to configure the package for your system.
-
-     Running `configure' might take a while.  While running, it prints
-     some messages telling which features it is checking for.
-
-  2. Type `make' to compile the package.
-
-  3. Optionally, type `make check' to run any self-tests that come with
-     the package.
-
-  4. Type `make install' to install the programs and any data files and
-     documentation.
-
-  5. You can remove the program binaries and object files from the
-     source code directory by typing `make clean'.  To also remove the
-     files that `configure' created (so you can compile the package for
-     a different kind of computer), type `make distclean'.  There is
-     also a `make maintainer-clean' target, but that is intended mainly
-     for the package's developers.  If you use it, you may have to get
-     all sorts of other programs in order to regenerate files that came
-     with the distribution.
-
-  6. Often, you can also type `make uninstall' to remove the installed
-     files again.
-
-Compilers and Options
-=====================
-
-   Some systems require unusual options for compilation or linking that
-the `configure' script does not know about.  Run `./configure --help'
-for details on some of the pertinent environment variables.
-
-   You can give `configure' initial values for configuration parameters
-by setting variables in the command line or in the environment.  Here
-is an example:
-
-     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
-
-   *Note Defining Variables::, for more details.
-
-Compiling For Multiple Architectures
-====================================
-
-   You can compile the package for more than one kind of computer at the
-same time, by placing the object files for each architecture in their
-own directory.  To do this, you can use GNU `make'.  `cd' to the
-directory where you want the object files and executables to go and run
-the `configure' script.  `configure' automatically checks for the
-source code in the directory that `configure' is in and in `..'.
-
-   With a non-GNU `make', it is safer to compile the package for one
-architecture at a time in the source code directory.  After you have
-installed the package for one architecture, use `make distclean' before
-reconfiguring for another architecture.
-
-   On MacOS X 10.5 and later systems, you can create libraries and
-executables that work on multiple system types--known as "fat" or
-"universal" binaries--by specifying multiple `-arch' options to the
-compiler but only a single `-arch' option to the preprocessor.  Like
-this:
-
-     ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
-                 CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
-                 CPP="gcc -E" CXXCPP="g++ -E"
-
-   This is not guaranteed to produce working output in all cases, you
-may have to build one architecture at a time and combine the results
-using the `lipo' tool if you have problems.
-
-Installation Names
-==================
-
-   By default, `make install' installs the package's commands under
-`/usr/local/bin', include files under `/usr/local/include', etc.  You
-can specify an installation prefix other than `/usr/local' by giving
-`configure' the option `--prefix=PREFIX'.
-
-   You can specify separate installation prefixes for
-architecture-specific files and architecture-independent files.  If you
-pass the option `--exec-prefix=PREFIX' to `configure', the package uses
-PREFIX as the prefix for installing programs and libraries.
-Documentation and other data files still use the regular prefix.
-
-   In addition, if you use an unusual directory layout you can give
-options like `--bindir=DIR' to specify different values for particular
-kinds of files.  Run `configure --help' for a list of the directories
-you can set and what kinds of files go in them.
-
-   If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving `configure' the
-option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
-
-Optional Features
-=================
-
-   Some packages pay attention to `--enable-FEATURE' options to
-`configure', where FEATURE indicates an optional part of the package.
-They may also pay attention to `--with-PACKAGE' options, where PACKAGE
-is something like `gnu-as' or `x' (for the X Window System).  The
-`README' should mention any `--enable-' and `--with-' options that the
-package recognizes.
-
-   For packages that use the X Window System, `configure' can usually
-find the X include and library files automatically, but if it doesn't,
-you can use the `configure' options `--x-includes=DIR' and
-`--x-libraries=DIR' to specify their locations.
-
-Particular systems
-==================
-
-   On HP-UX, the default C compiler is not ANSI C compatible.  If GNU
-CC is not installed, it is recommended to use the following options in
-order to use an ANSI C compiler:
-
-     ./configure CC="cc -Ae"
-
-and if that doesn't work, install pre-built binaries of GCC for HP-UX.
-
-   On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
-parse its `<wchar.h>' header file.  The option `-nodtk' can be used as
-a workaround.  If GNU CC is not installed, it is therefore recommended
-to try
-
-     ./configure CC="cc"
-
-and if that doesn't work, try
-
-     ./configure CC="cc -nodtk"
-
-Specifying the System Type
-==========================
-
-   There may be some features `configure' cannot figure out
-automatically, but needs to determine by the type of machine the package
-will run on.  Usually, assuming the package is built to be run on the
-_same_ architectures, `configure' can figure that out, but if it prints
-a message saying it cannot guess the machine type, give it the
-`--build=TYPE' option.  TYPE can either be a short name for the system
-type, such as `sun4', or a canonical name which has the form:
-
-     CPU-COMPANY-SYSTEM
-
-where SYSTEM can have one of these forms:
-
-     OS KERNEL-OS
-
-   See the file `config.sub' for the possible values of each field.  If
-`config.sub' isn't included in this package, then this package doesn't
-need to know the machine type.
-
-   If you are _building_ compiler tools for cross-compiling, you should
-use the option `--target=TYPE' to select the type of system they will
-produce code for.
-
-   If you want to _use_ a cross compiler, that generates code for a
-platform different from the build platform, you should specify the
-"host" platform (i.e., that on which the generated programs will
-eventually be run) with `--host=TYPE'.
-
-Sharing Defaults
-================
-
-   If you want to set default values for `configure' scripts to share,
-you can create a site shell script called `config.site' that gives
-default values for variables like `CC', `cache_file', and `prefix'.
-`configure' looks for `PREFIX/share/config.site' if it exists, then
-`PREFIX/etc/config.site' if it exists.  Or, you can set the
-`CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all `configure' scripts look for a site script.
-
-Defining Variables
-==================
-
-   Variables not defined in a site shell script can be set in the
-environment passed to `configure'.  However, some packages may run
-configure again during the build, and the customized values of these
-variables may be lost.  In order to avoid this problem, you should set
-them in the `configure' command line, using `VAR=value'.  For example:
-
-     ./configure CC=/usr/local2/bin/gcc
-
-causes the specified `gcc' to be used as the C compiler (unless it is
-overridden in the site shell script).
-
-Unfortunately, this technique does not work for `CONFIG_SHELL' due to
-an Autoconf bug.  Until the bug is fixed you can use this workaround:
-
-     CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
-
-`configure' Invocation
-======================
-
-   `configure' recognizes the following options to control how it
-operates.
-
-`--help'
-`-h'
-     Print a summary of all of the options to `configure', and exit.
-
-`--help=short'
-`--help=recursive'
-     Print a summary of the options unique to this package's
-     `configure', and exit.  The `short' variant lists options used
-     only in the top level, while the `recursive' variant lists options
-     also present in any nested packages.
-
-`--version'
-`-V'
-     Print the version of Autoconf used to generate the `configure'
-     script, and exit.
-
-`--cache-file=FILE'
-     Enable the cache: use and save the results of the tests in FILE,
-     traditionally `config.cache'.  FILE defaults to `/dev/null' to
-     disable caching.
-
-`--config-cache'
-`-C'
-     Alias for `--cache-file=config.cache'.
-
-`--quiet'
-`--silent'
-`-q'
-     Do not print messages saying which checks are being made.  To
-     suppress all normal output, redirect it to `/dev/null' (any error
-     messages will still be shown).
-
-`--srcdir=DIR'
-     Look for the package's source code in directory DIR.  Usually
-     `configure' can determine that directory automatically.
-
-`--prefix=DIR'
-     Use DIR as the installation prefix.  *Note Installation Names::
-     for more details, including other options available for fine-tuning
-     the installation locations.
-
-`--no-create'
-`-n'
-     Run the configure checks, but stop before creating any output
-     files.
-
-`configure' also accepts some other, not widely useful, options.  Run
-`configure --help' for more details.
-

Makefile.am

@@ -1,5 +1,55 @@
 ## Makefile.am -- Process this file with automake to produce Makefile.in
 
-AUTOMAKE_OPTIONS = gnits
+AUTOMAKE_OPTIONS = gnu
 
-SUBDIRS = src man contrib
+EXTRA_DIST = \
+	.version \
+	build-aux/git-version-gen \
+	m4/gnulib-cache.m4
+
+SUBDIRS = lib
+
+BUILT_SOURCES = $(top_srcdir)/.version
+$(top_srcdir)/.version:
+	echo $(VERSION) > $@-t && mv $@-t $@
+dist-hook:
+	echo $(VERSION) > $(distdir)/.tarball-version
+
+PATHFILES =
+CLEANFILES = $(PATHFILES)
+EXTRA_DIST += $(PATHFILES:=.in)
+CLEAN_LOCALS =
+
+edit_cmd = sed \
+	 -e 's|@ALARM_CRIT[@]|$(ALARM_CRIT)|g' \
+	 -e 's|@ALARM_WARN[@]|$(ALARM_WARN)|g' \
+	 -e 's|@DHCPDCONF_FILE[@]|$(DHCPDCONF_FILE)|g' \
+	 -e 's|@DHCPDLEASE_FILE[@]|$(DHCPDLEASE_FILE)|g' \
+	 -e 's|@OUTPUT_FORMAT[@]|$(OUTPUT_FORMAT)|g' \
+	 -e 's|@OUTPUT_LIMIT[@]|$(OUTPUT_LIMIT)|g' \
+	 -e 's|@PACKAGE_BUGREPORT[@]|$(PACKAGE_BUGREPORT)|g' \
+	 -e 's|@PACKAGE_MAINTAINER[@]|$(PACKAGE_MAINTAINER)|g' \
+	 -e 's|@PACKAGE_NAME[@]|$(PACKAGE_NAME)|g' \
+	 -e 's|@PACKAGE_URL[@]|$(PACKAGE_URL)|g' \
+	 -e 's|@SHELL[@]|$(SHELL)|g' \
+	 -e 's|@VERSION[@]|$(VERSION)|g' \
+	 -e 's|@bindir[@]|$(bindir)|g' \
+	 -e 's|@docdir[@]|$(docdir)|g' \
+	 -e 's|@top_srcdir[@]|$(top_srcdir)|g'
+
+$(PATHFILES): Makefile
+	@ rm -f $@ $@.tmp
+	$(AM_V_at) mkdir -p $$(dirname $@)
+	$(AM_V_GEN) srcdir=''; \
+		test -f ./$@.in || srcdir=$(srcdir)/; \
+		$(edit_cmd) $${srcdir}$@.in >$@.tmp
+	@ mv $@.tmp $@
+
+include contrib/Makemodule.am
+include doc/Makemodule.am
+include man/Makemodule.am
+include samples/Makemodule.am
+include src/Makemodule.am
+include tests/Makemodule.am
+
+clean-local: $(CLEAN_LOCALS)

Makefile.in

@@ -1,682 +0,0 @@
-# Makefile.in generated by automake 1.11.1 from Makefile.am.
-# @configure_input@
-
-# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
-# Inc.
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-@SET_MAKE@
-VPATH = @srcdir@
-pkgdatadir = $(datadir)/@PACKAGE@
-pkgincludedir = $(includedir)/@PACKAGE@
-pkglibdir = $(libdir)/@PACKAGE@
-pkglibexecdir = $(libexecdir)/@PACKAGE@
-am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
-install_sh_DATA = $(install_sh) -c -m 644
-install_sh_PROGRAM = $(install_sh) -c
-install_sh_SCRIPT = $(install_sh) -c
-INSTALL_HEADER = $(INSTALL_DATA)
-transform = $(program_transform_name)
-NORMAL_INSTALL = :
-PRE_INSTALL = :
-POST_INSTALL = :
-NORMAL_UNINSTALL = :
-PRE_UNINSTALL = :
-POST_UNINSTALL = :
-subdir = .
-DIST_COMMON = README $(am__configure_deps) $(srcdir)/Makefile.am \
-	$(srcdir)/Makefile.in $(srcdir)/config.h.in \
-	$(top_srcdir)/configure AUTHORS COPYING ChangeLog INSTALL NEWS \
-	THANKS TODO depcomp install-sh missing mkinstalldirs
-ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/configure.ac
-am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
-	$(ACLOCAL_M4)
-am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
- configure.lineno config.status.lineno
-mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
-CONFIG_HEADER = config.h
-CONFIG_CLEAN_FILES =
-CONFIG_CLEAN_VPATH_FILES =
-SOURCES =
-DIST_SOURCES =
-RECURSIVE_TARGETS = all-recursive check-recursive dvi-recursive \
-	html-recursive info-recursive install-data-recursive \
-	install-dvi-recursive install-exec-recursive \
-	install-html-recursive install-info-recursive \
-	install-pdf-recursive install-ps-recursive install-recursive \
-	installcheck-recursive installdirs-recursive pdf-recursive \
-	ps-recursive uninstall-recursive
-RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive	\
-  distclean-recursive maintainer-clean-recursive
-AM_RECURSIVE_TARGETS = $(RECURSIVE_TARGETS:-recursive=) \
-	$(RECURSIVE_CLEAN_TARGETS:-recursive=) tags TAGS ctags CTAGS \
-	distdir dist dist-all distcheck
-ETAGS = etags
-CTAGS = ctags
-DIST_SUBDIRS = $(SUBDIRS)
-DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
-distdir = $(PACKAGE)-$(VERSION)
-top_distdir = $(distdir)
-am__remove_distdir = \
-  { test ! -d "$(distdir)" \
-    || { find "$(distdir)" -type d ! -perm -200 -exec chmod u+w {} ';' \
-         && rm -fr "$(distdir)"; }; }
-am__relativize = \
-  dir0=`pwd`; \
-  sed_first='s,^\([^/]*\)/.*$$,\1,'; \
-  sed_rest='s,^[^/]*/*,,'; \
-  sed_last='s,^.*/\([^/]*\)$$,\1,'; \
-  sed_butlast='s,/*[^/]*$$,,'; \
-  while test -n "$$dir1"; do \
-    first=`echo "$$dir1" | sed -e "$$sed_first"`; \
-    if test "$$first" != "."; then \
-      if test "$$first" = ".."; then \
-        dir2=`echo "$$dir0" | sed -e "$$sed_last"`/"$$dir2"; \
-        dir0=`echo "$$dir0" | sed -e "$$sed_butlast"`; \
-      else \
-        first2=`echo "$$dir2" | sed -e "$$sed_first"`; \
-        if test "$$first2" = "$$first"; then \
-          dir2=`echo "$$dir2" | sed -e "$$sed_rest"`; \
-        else \
-          dir2="../$$dir2"; \
-        fi; \
-        dir0="$$dir0"/"$$first"; \
-      fi; \
-    fi; \
-    dir1=`echo "$$dir1" | sed -e "$$sed_rest"`; \
-  done; \
-  reldir="$$dir2"
-DIST_ARCHIVES = $(distdir).tar.gz
-GZIP_ENV = --best
-distuninstallcheck_listfiles = find . -type f -print
-distcleancheck_listfiles = find . -type f -print
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-	ctags-recursive install-am install-strip tags-recursive
-
-.PHONY: $(RECURSIVE_CLEAN_TARGETS) $(RECURSIVE_TARGETS) CTAGS GTAGS \
-	all all-am am--refresh check check-am clean clean-generic \
-	ctags ctags-recursive dist dist-all dist-bzip2 dist-gzip \
-	dist-lzma dist-shar dist-tarZ dist-xz dist-zip distcheck \
-	distclean distclean-generic distclean-hdr distclean-tags \
-	distcleancheck distdir distuninstallcheck dvi dvi-am html \
-	html-am info info-am install install-am install-data \
-	install-data-am install-dvi install-dvi-am install-exec \
-	install-exec-am install-html install-html-am install-info \
-	install-info-am install-man install-pdf install-pdf-am \
-	install-ps install-ps-am install-strip installcheck \
-	installcheck-am installdirs installdirs-am maintainer-clean \
-	maintainer-clean-generic mostlyclean mostlyclean-generic pdf \
-	pdf-am ps ps-am tags tags-recursive uninstall uninstall-am
-
-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:

NEWS

@@ -5,6 +5,543 @@ See the end for copying conditions.
 
 Please send dhcpd-pools bug reports to kerolasa@iki.fi.
 
+gpg: Signature is crated using RSA key ID 8ED396E37E38D471A00530D3A9553245FDE9B739.
+
+
+Version 3.3
+Belkacem Daheb (2):
+      add start, end and hostname printing support for xml and json
+      getdata output: add start, end and hostname printing support for xml and json
+
+M. van Brummelen (1):
+      docs: fix manual page groff warning
+
+Sami Kerola (9):
+      update project web page
+      website: use https
+      chore: update web links
+      getdata: only emit warning when config include file cannot be read
+      gnulib: update bootstrap and gitignore files
+      build-sys: quote subshell execution in the autotools file
+      build-sys: update bootstrap from gnulib
+      output: update html javascripts
+      release: 3.3
+
+luisδμ (1):
+      fix: avoid generation of unvalid JSON in summary
+
+Version 3.2
+Jean Benoit (1):
+      contrib: snmptest.pl SNMPwalk can't access to all variables/wrong sort
+
+Sami Kerola (5):
+      contrib: point out where one can find zabbix template
+      build-sys: update .gitignore files
+      config: remove unnecessary padding
+      build-sys: autotools and gnulib related updates
+      build-sys: routine update
+      release: 3.2
+
+Version 3.1
+Mark Sangster (1):
+      output: fix warn and crit counts on shared networks
+
+Sami Kerola (31):
+      webpage: add instructions how to get output you need
+      build-sys: add coverage files to .gitignore
+      tests: improve coverage
+      docs: fix peoples name in THANKS file to have correct characters
+      add .mailmap
+      output: fix implicit conversion
+      main: simplify option parsing
+      fix typo
+      main: move print_mac_addreses to state structure
+      main: move output_format to state, and rename color_format
+      webpages: use html sample output
+      fix switch missing default case warnings
+      sort: ensure NaN will not trip over comp_double()
+      drop images, java scripts, and such from web sitemap file
+      getdata: remote dead code
+      other: use strftime() to generate date-time string
+      lib: update .gitignore
+      fix typos
+      various: fix few warnings
+      warnings: ensure optimal packing in structures
+      other: use IP string lengths from netinet/in.h
+      mustach: sync with most recent mustach upstream changes
+      various: tidy up variable scopes, and one name mismatch
+      build-sys: update .gitignore files
+      output: add warning and critical threshold counts to mustach
+      samples: make prometheus template less klunky
+      misc: fix spelling issues
+      output: add ethernet address priting support to --mustach
+      build-sys: update bootstrap from gnulib
+      output: update javascripts
+      release: 3.1
+
+Version 3.0
+Sami Kerola (56):
+      release: update web page meta data
+      update sitemap
+      output: make output_analysis() to be regular function
+      getdata: fix typo
+      output: add output helper functions
+      output: add color support to text output
+      output: include earlier missing data to json output
+      output: add --skip-ok option
+      other: add --skip-ok to usage() output
+      output: json nan values need quoting
+      other: do not use 'else' after 'return'
+      getdata: do not use 'else' after 'continue'
+      include: use project specific header guard
+      output: use range_output_helper() value in output_xml()
+      output: add mustach templating support
+      output: add separate first_ip and last_ip to json and mustach outputs
+      docs: add mustach sample files
+      tests: add mustach check
+      output: make mustach processing more robust
+      output: avoid mixing ntop_ipaddr() output buffers
+      output: do not skip over first range in mustach output
+      output: save and reuse output helper results
+      output: add must_put_err() utility function
+      output: include stdlib.h to avoid compilation error
+      gnulib: use nstrftime instead of strftime
+      build-sys: omit mustach compilation when it cannot work
+      usage: add error message informing mustach support is not available
+      output: deduplicate file closing code
+      clean up: remove unused variable
+      all files: replace global variables with runtime config state structure
+      all files: re-indent
+      analyze: bug fix shared networks counts
+      other: add Jose Bollo to version output credits
+      output: improve mustach template parsing error
+      analysis: shared networks to be linked list
+      output: make --skip-ok to effect --perfdata
+      output: move shared net andn range status check to output_helper
+      output: make warning and critical colors work in html output
+      output: display more entries in html table by default
+      output: shared net can be in suppressed state
+      output: improve html table
+      hash: include stdlib.h to avoid implicit declarations
+      clean up: fix couple compiler warnings
+      thanks: add Troy D. Hanson to credits about uthash
+      samples: add prometheus text file collector mustach template
+      output: make --skip to take arguments what will be skipped
+      misc: move command line option parsing to separate function
+      misc: move couple enums from global scope to file scope
+      docs: improve doxygen documentation
+      output: remove unused variable attribute
+      output: add more items to mustach tags
+      output: unify time stamp creations
+      orther: fix xstrstr_init() memcmp() return value usage
+      output: add some trivia data to json output
+      usage: --skip=ignored is actually 'suppressed'
+      release: 3.0
+
+Version 2.29
+Boris Lytochkin (1):
+      introduce -A arg: treat single subnets as shared-network with CIDR as their name
+
+Manuel Hachtkemper (1):
+      alarming: add additional performance data
+
+Sami Kerola (47):
+      tell in README when ./bootstrap is needed
+      add dhcpd-pools website content to a subdirectory
+      add sitemap url to robots.txt file
+      use long options in .indent.pro file
+      webpages: make index page mobile device friendly
+      webpages: compress sitemap.txt file
+      getdata: flip ranges if they are in greater smaller order
+      tests: add range definition flip test
+      contrib: add archlinux package build file
+      contrib: remove unnecessary cgi script
+      contrib: remove awk file duplicate
+      getdata: get rid of remaining stdbool usage
+      argument parsing: fix compiler warning
+      add dhcpd-pools Description Of A Project file
+      fix doap file git repository and license section
+      output: check alarming mode can output successfully
+      build-sys: update bootstrap from gnulib
+      build-sys: update gnulib .gitignore file
+      analyze: use while() when for() is less fit to purpose
+      build-sys: default to ./configure --enable-silent-rules
+      build-sys: always use restrict found by autoconf
+      docs: fix couple typos and improve a sentence in README
+      output: remove unnecessary increment
+      portability: add gnulib modules earlier missing
+      remove const and pure function attributes
+      man: improve synopsis and output limit
+      man: remove old html table only option argument from manual
+      getdata: report position in config file when parsing fails
+      output: fix timestamp localization on html page
+      output: add include avoid referringt to undefined definition
+      getdata: remove POSIX_FADV_NOREUSE
+      style: use same argument names in header and source file
+      contrib: Klaus Slott told about opensuse package
+      getdata: fpos_t is not easy to print correctly
+      lib: update .gitignore
+      fix typo
+      variable: add const to print_mac_addreses_tmp
+      lib: update .gitignore
+      add --ip-version option to force either IPv4 or IPv6 analysis
+      lib: update .gitignore
+      getdata: add cidr range support
+      build-sys: update bootstrap from gnulib
+      docs: update doxygen configuration file
+      docs: tell what needs to be done when releasing new version
+      docs: add build instruction link to the project web page
+      docs: update maintainer gpg key
+      release: 2.29
+
+Version 2.28
+Sami Kerola (26):
+      portability: Solaris 10 does not have err.h
+      fix couple compiler warnings
+      make binary exec path dynamic in scripts referring to it
+      update doxygen.conf file
+      add --snet-alarms option to suppress excess range alarms
+      add --warn-count and --crit-count options to suppress alarm noise
+      improve README file instructions
+      make html output to use Bootstrap and DataTables
+      fix typo in README
+      correct return value FIXME items
+      use more descriptive names in limit bits enum definition
+      remove upper limit of sort order definitions
+      fix protocol specifier in html output
+      use bitmap for booleans and other config that has known size
+      simplify output format selection, and passing
+      fix doxygen build
+      fix improve variable names
+      print include system error message when output fails
+      drop a core when bug condition happens
+      make usage() easier to read
+      unify quotation in error messages
+      add --warn-count and --crit-count test, and fix related bug
+      test all sorting options
+      change NAN markup to make tests work on mac
+      fix out of tree build tests
+      release: 2.28
+
+Version 2.27
+Sami Kerola (9):
+      docs: remove very basic git usage info
+      docs: remove todo items that will never happen
+      output: remove empty element from xml
+      add touched addresses counts to xml and json reports
+      add xml format check
+      improve html output
+      add hint about configure options to README
+      man: fix character class change
+      gitignore: update gnulib file list
+      release: 2.27
+
+Version 2.26
+$ git shortlog v2.25..v2.26
+Sami Kerola (15):
+      news: add the note about .sig pgp key id
+      reindent all files
+      declare global variables only once
+      add appropriate sorting function for struct leases_t
+      update kernel.org url in README
+      getdata: fix buffer-overflows reported by address sanitizer
+      update bootstrap from gnulib
+      getdata: fix buffer overflow [AddressSanitizer]
+      other: reduce variable scope
+      output: prefer thread safe function localtime_r()
+      tests: add regression test to avoid shared-net off by one alarming
+      issue
+      output: avoid division by zero
+      other: disallow unsigned counter ever to have minus value
+      maint: remove unnecessary braces, spaces, update gnulib .gitignore
+      release: 2.26
+
+Wolfgang Steudel (1):
+      alarming: include last shared network in alarming [off by one]
+
+Version 2.25
+$ git shortlog v2.24..v2.25
+Sami Kerola (14):
+      build-sys: use more strict method to check __builtin_expect
+      getdata: add missing HAVE_POSIX_FADVISE protection
+      getdata: fix consecutive range definition regression
+      man: add tip analysis of include files can be useful
+      thanks: add Fredrik Lysén & Conor McCarthy
+      generic: use pure and const function attributes when possible
+      tests: fix testing error
+      output: make nagios output have performance data
+      build-sys: update gitinore file
+      output: use symbolic exit values for nagios commands
+      build-sys: update bootstrap script
+      build-sys: require automake 1.12 to get working test-driver
+      contrib: add release siging key to contrib/
+      release: 2.25
+
+Version 2.24
+$ git shortlog v2.23..v2.24
+Sami Kerola (22):
+      build-sys: update configure.ac
+      output: make output limits to apply to alarm return values
+      tests: add alarming tests
+      output: allow alarming, in case of success, be silent
+      tests: fix tests to use the new OK printing limit
+      docs: inform how the limits affect to printing when alarming is in use
+      output: allow user to ignore small ranges and shared networks
+      tests: test small network alarm ignoring
+      docs: add an example how to use limits with alarming
+      thanks: Dan Pritts
+      xstrstr: speed up analysis by avoiding string comparisons
+      other: memcmp() is tiny bit quicker than strncmp()
+      build-sys: update gnulib modules
+      build-sys: AC_PROG_CC_C99 is obsolete; use AC_PROG_CC
+      getdata: use correct file caching advice
+      analyze: remove unnecessary function
+      getdata: memccpy() is better than own similar function
+      getdata: split busy function to segments used via function pointer
+      various: split functions to IPv4 and IPv6 versions
+      various: fix memory leaks
+      getdata: fix one ip ranges when they have trailing spaces in definition
+      release: 2.24
+
+Version 2.23
+$ git shortlog v2.22..v2.23
+Sami Kerola (3):
+      gnulib: add gnulib modules
+      build-sys: update bootstrap from gnulib
+      release: 2.23
+
+Version 2.22
+$ git shortlog v2.21..v2.22
+Cheer Xiao (1):
+      getdata: treat binding states abandoned, expired and release like free
+
+Sami Kerola (19):
+      tests: add complete check including multiple ranges and shared networks
+      include: add missing declarations to dhcpd-pool.h
+      cppcheck: fix variable scoping
+      build-sys: update .gitignore
+      build-sys: add git-version-gen and test.sh to release package
+      docs: fix spelling mistakes in manual page
+      build-sys: ensure distribution has version file
+      build-sys: update git-version-gen from gnulib
+      tests: binding states commit needs to be reflected in expected results
+      build-sys: reorder gnulib macro in relation to C standard
+      getdata: posix_fadvise() error checking
+      getdata: certain input files caused SIGSEGV
+      tests: check how command works with invalid input
+      getdata: make a lease address detection more robust
+      getdata: make single address ranges work
+      tests: add a test for one ip range
+      build-sys: fix gnulib function order
+      build-sys: use non-recursive build
+      release: 2.22
+
+Version 2.21
+$ git shortlog v2.20..v2.21
+Cheer Xiao (10):
+      IPv6: add DHCPv6 support
+      sort: Use a comparer instead of returner
+      sort: Get rid of global comparer
+      counting & output: Convert all counters to double
+      fix: Put prototype of field_selector back to dhcpd-pools.h
+      sort: let field_selector return NULL at the end
+      counting: Let get_range_size return double
+      sort: let comp_* functions compare double
+      tests: update expected/v6
+      output: fix doc of output_double
+
+Gilles Bouthenot (5):
+      output: add json format support
+      json output: add newline at end
+      json output: remove useless, empty fields
+      json output: bugfix: correct range specify only first ip
+      contrib: add munin plugins
+
+Sami Kerola (29):
+      build-sys: remove c++ compiler check
+      tools: add indent command configuration file
+      tests: add basic tests
+      build-sys: update .gitignore
+      tests: add v6 check
+      output: remove unnecessary new line printing
+      build-sys: more clean ups
+      json output: use defined output file for all printing
+      tests: add json tests, and make fail output loud
+      ouput format: fix active lease printing
+      output ethernet: do not crash if ethernet is missing
+      docs: add doxygen tags, configuration file, and autotooling
+      backup counting: fix output regression
+      clean up: remove unused functions
+      clean up: move code to more proper location
+      hash: make delete to use HASH_ITER if it is available
+      clean up: move global variables to config structure
+      clean up: use enum as symbolic bit masks
+      clean up: convert parsing magic numbers to symbolic values
+      clean up: rename get_order() to merge() and mark static
+      clean up: fix few indentation slips
+      getdata: be consistant with symbolic numbers
+      smatch scan: fix few warnings
+      build-sys: allow tests run parallel
+      build-sys: update .gitignore files
+      docs: thanks to Cheer Xiao this software has IPv6 support
+      tests: fix make distcheck
+      docs: fix doxygen make distcheck breakage
+      release: 2.21
+
+Version 2.20
+$ git shortlog v2.19..v2.20
+Cheer Xiao (3):
+      ignore /gnulib/
+      Replace all htonl in getdata.c with ntohl.
+      Fix spelling mistakes.
+
+Sami Kerola (20):
+      analyze: use simpler comparison
+      analyze: sort ranges before analysis
+      sort: fix if else return statements
+      getdata: fix if else return statements
+      analyze, getdata: write functions in frequency order
+      getdata: stop looking after interesting field
+      getdata: skip strings before nth_field analysis
+      analyze: use gnulib
+      sort: fix get_order() if else return statement
+      (un)likely: use __builtin_expect to inform expected path
+      header: let gnulib do what it is best of
+      xstrstr: add function attributes
+      docs: fix spelling mistakes
+      getdata & analyze: fix first_ip and last_ip arithmetics
+      man: use configured dhcpd.conf and dhcpd.leases paths
+      build-sys: update gitignore
+      build-sys: clean up configure.ac
+      build-sys: make alarm warning & critical default configurable
+      man: fix errors in alarm warning and critical options text
+      release: 2.20
+
+Version 2.19
+$ git shortlog v2.18..v2.19
+Sami Kerola (19):
+      alarming: make native nagios support to dhcpd-pools
+      docs: add examples to manual page
+      docs: add note how to limit alarming scope
+      contrib: add nagios.conf example
+      build-sys: create only xz compressed distribution package
+      all: fix compiler warninings
+      style: fix few indentation issues
+      build-sys: use AM_CPPFLAGS rather than INCLUDES
+      output: fix sign-compare warning [clang]
+      build-sys: add what autoscan found bein missing
+      build-sys: be conservative about posix_fadvice
+      docs: clarify man page
+      build-sys: add gnulib
+      build-sys: clean gnulib & autotools checks
+      performance: add few restict and const key words
+      build-sys: remove files which where added by accident
+      docs: mention gnulib in README file
+      build-sys: update gitignore
+      release: 2.19
+
+Version 2.18
+$ git shortlog v2.17..v2.18
+Ryan Steinmetz (1):
+      build-sys: make build work under FreeBSD
+
+Sami Kerola (2):
+      build-sys: add --with-uthash=DIR ./configure option
+      analyze: a lot of IP counts being missed
+
+Version 2.17
+# git shortlog v2.16..v2.17
+Enno Gröper (1):
+      analyse: critical bug in the counting code
+
+Sami Kerola (16):
+      dhcpd-pools.h: move string.h to include
+      dhcpd-pools.h: move string.h to include
+      docs: TODO update
+      Merge branch 'master' of
+      ssh://dhcpd-pools.git.sourceforge.net/gitroot/dhc
+      build: smatch compiler warnings fixed
+      docs: enhance manual page readability
+      all files: use restrict key word for all pointer arguments
+      build-sys: C99 has true and false
+      docs: update thanks
+      TODO: update bugs
+      contrib: add first .awk algorithm test version to contrib
+      docs: update TODO
+      getdata: fix configuration parser bug
+      getdata: do not mix boolean and int data types [cppcheck]
+      output: verify stream status when closing files
+      build-sys: update news for release v2.17
+
+Version 2.16
+# git shortlog v2.15..v2.16
+Sami Kerola (25):
+      docs: help screen & man page
+      docs: add missing full-html flag
+      headers: include-what-you-use fixes
+      other: free backup ranges
+      prepare_memory bug: initialization missing
+      licensing: use FreeBSD license (was GNUv3)
+      parse_leases: exit at read error
+      getdata: realloc instead of asserting
+      getdata: potential overflow due unit change
+      bug: use uint32_t for IP numbers
+      analyze: use more logical variable names
+      getdata: initialize memory
+      all: include-what-you-see fixes
+      analyze: debugging leftover removed
+      THANKS: add Ahmed AL Dakhil
+      maint: coding style fixes
+      output: change to full html behaviour
+      build-sys: autotools configure.ac update
+      docs: NEWS update
+      docs: remove version from manual page
+      licensing: set placeholder properly
+      bug: use uint32_t for IP numbers
+      build-sys: ignore gprof & gcov files
+      getdata: new xstrstr function for performance
+      other: fix two warnings
+      build-sys: update news for release v2.16
+
+Version 2.15
+# git shortlog v2.14..v2.15
+Sami Kerola (13):
+      dhcpd-pools.h: function attributes declarations
+      dhcpd-pools.h: indentation fix
+      getdata.c: initialize variables to have safe values
+      autotools: point correct location of src
+      flose files & free memory when not needed
+      dhcpd-pools.h: portable program_invocation_short_name
+      build-sys: use git version as program version output
+      build-sys: git describe listed wrong tag
+      getdata: increase max number of shared networks
+      clean_up: checking errno at exit does not make sense
+      make range allocation dynamic
+      shared network names to be dynamically allocated
+      thanks: list update
+
+Version 2.14
+# git shortlog v2.13..v2.14
+Sami Kerola (18):
+      Fix to range dynamic-bootp specifier
+      Automake 2.64 is needed.
+      Arithmetic comparisons to be same way around
+      The xml output is dirty and marked as FIXME
+      Optimization on basis of gcov
+      Use what libc will provide
+      Not a syscall error, warn should be warnx.
+      Impossible to reach sections removed
+      posix_fadvice advice parameter change
+      Do not analyze if sort field selector is rubbish.
+      autogen.sh: test bug fix & clean up to messages
+      autogen.sh: typo fix in previous commit
+      Copyright notice change to GNU license 3
+      Allow xml output with leases to use output file
+      INSTALL file is unnecessary
+      fix to safe_strdup prototype.
+      ignore INSTALL file
+      configure.ac: autoscan updates
+      Release 2.14
 
 Version 2.13
 * Autoreconf to get ./configure et al up to date.

README

@@ -1,28 +1,62 @@
-This is dhcpd-pools which is made for ISC dhcpd pool range
+This is dhcpd-pools - ISC dhcpd lease status utility.
-analysis.
 
-With this command you can check usage of pool addresses when
+Quick start.
-address space is great. Command is designed so that it will not
-get slow even there is thousands of IPs in lease file. This kind
-of huge dhcpd installation can be near by DSL DSLAMs or some other
-public access connection points.
 
-This command will not print nice to know information like
+	Get the uthash, assuming you do not have it already.
-DHCPStatus does. Output is limited only to list only usage for
-ranges, shared network and total address space. Limiting what is
-printed is the right thing to do when there is thousands of
-addresses. If your address space is small some other dhcp
-analyzer might be more suitable for you.
 
-Source code is pretty printed by using indent command switches.
+	cd /tmp
+	wget https://github.com/troydhanson/uthash/archive/master.zip
+	unzip master.zip
 
--kr -i8
+	Build the dhcpd-pools project.
 
-If you write a patch please use same coding style. In general the
+	cd /tmp/dhcpd-pools
-style is copy from Linux kernel.
+	./bootstrap	# only when building git clone
+	./configure --with-uthash=/tmp/uthash-master/include
+	make
+	make check
+	make install
 
-http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob_plain;f=Documentation/CodingStyle;hb=HEAD
+	Notice that there are configuration options for default dhcpd.conf,
+	dhcpd.leases paths, among other things.
 
-A dhcpd-pools home page is located at SourceForge.
+	./configure --help
 
-http://dhcpd-pools.sourceforge.net/
+	Remember to read the friendly manual page.
+
+	man ./man/dhcpd-pools.1
+
+Dependencies to other projects.
+
+	https://www.gnu.org/software/gnulib/
+
+		You can avoid repeated gnulib downloads by setting
+		GNULIB_SRCDIR environment variable.  For example:
+
+		git clone git://git.savannah.gnu.org/gnulib.git ~/src/gnulib
+		export GNULIB_SRCDIR="$HOME/src/gnulib"
+
+		Assumign detached gnulib please remember to git pull the
+		latest updates before building dhcpd-pools.
+
+	https://troydhanson.github.io/uthash/
+
+		See quick start.
+
+	https://getbootstrap.com/
+	https://datatables.net/
+
+		Bootstrap and DataTables java scripts are used in html
+		output.
+
+Test data wanted.
+
+	Maintainer is interested to get copy of your dhcpd.conf
+	and dhcpd.leases files, and include files if you use them.
+	Intention is to collect large set of data to build
+	realistic regression test environment.
+
+	If you are interested to help this way put all files into
+	tar.gz, and send them to:
+
+	Sami Kerola <kerolasa@iki.fi>

THANKS

@@ -1,17 +1,54 @@
 dhcpd-pools THANKS file
 
-Project is originated by Sami Kerola.
+Project is maintained by Sami Kerola <kerolasa@iki.fi>
 
 People who reported problems, give improvement suggestions or even
 contributed code.
 
-Otto J. Mäkelä
+Otto J. Mäkelä
 Mika Paananen
 Frank Bulk
 Roar Pettersen
 Jeff Wieland
 Rusty
-Fredrik Vöcks
+Fredrik Vöcks
 Dan Thorson
-Stian Øvrevåge
+Stian Øvrevåge
 Dominic Germain
+Anders Låstad
+Thor Eivind Brantzeg
+Ahmed AL Dakhil
+Adam Ciarcinski
+Rezső Gajdóczy
+Robert Viou
+Enno Gröper
+Troy D. Hanson
+Ryan Malek
+Cheer Xiao
+Gilles Bouthenot
+Helmut Grohne
+Joey D.
+Ryan Steinmetz
+Dan Pritts
+Fredrik Lysén
+Conor McCarthy
+Wolfgang Steudel
+Aaron Paetznick
+Tim Cantin
+Martijn van Brummelen
+Anton Tkachev
+Derrick Lin
+Ivanov Ivan
+Manuel Hachtkemper
+Klaus Slott
+Boris Lytochkin
+Jeff Bailey
+José Bollo
+Sebastián Cramatte
+Mark Sangster
+Brent Swingle
+Mathieu Morier
+Jean Benoit
+Belkacem Daheb
+Björn Lässig
+Luisδμ

TODO

@@ -1,22 +1,33 @@
-1  Well structured code, with extendible sane architecture.
+### Bugs
-2  Server, which has analysis in cache for N seconds and will
-   answer via socket.
-3  Configuration file for server.
-4  State file, where different ranges, shared networks etc have
-   unique identifiers (needed for graphs).
-5  Support for snmp and munin protocols.
-6  SNMP traps when limits get exceeded.
-7  Some clever check_dhcpd_pools binary for Nagios & other
-   monitoring software.
 
-8  Super server support, which will collect analysis from other
+Reported-by: Huangyu: I found dhcpd-pools didn't consider if the
-   dhcpd-pool servers.
+   active lease's ends time is passed so it would still think the
-9  Nice http view interface on super server, much can be copied
+   lease is active even if dhcpd daemon is stopped for a long time,
-   from http://piwik.org/
+   the leases marked by "active" state in lease_file has expired in
-10 IPv6 support.
+   fact.
-11 And some other things perhaps...
 
-When items 1-7 are done v3 can be released. To support rewrite
+### Feature requests
-there should be a design document with nice blue print, which is
+
-a web page. Also getting rid of cvs and taking git in use must
+o Assigned IPs count (Nelson)
-happen.
+o Subnet counting class (Henryk)
+o When time stamps are part of lease situation evaluation (see
+  bug 1) add a --now switch which will one can use to change when
+  expiry happens.
+o Add lease time histogram support.
+
+### When releasing
+
+o Update gnulib
+o Update bootstrap
+o Update DataTables, and bootstrap versions; see https://datatables.net/download/index
+o Update NEWS, webpages/index.html dateModified & version
+o Make annotated git tag
+o ./configure --enable-doxygen && make distcheck
+o BROWSER=cat man -H ./man/dhcpd-pools.1 | tee ./webpages/man.html
+o gpg --armor --detach-sign dhcpd-pools*tar*
+* Update sitemap
+o Upload files to sourceforge
+o mv doc/html webpages/doxygen
+o sftp index.html man.html doxygen/* -> sourceforge web
+  remove old doxygen before uploading new
+o Send email to dhcpd-pools-announce@lists.sourceforge.net subject: Version 3.n is released

aclocal.m4

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-#
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-# gives unlimited permission to copy and/or distribute it,
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-# serial 4
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-AC_DEFUN([AM_MAKE_INCLUDE],
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-AC_SUBST([am__include])
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-])
-
-# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
-
-# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008
-# Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# serial 6
-
-# AM_MISSING_PROG(NAME, PROGRAM)
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-AC_DEFUN([AM_MISSING_PROG],
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-AC_SUBST($1)])
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-# AM_MISSING_HAS_RUN
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-# Copyright (C) 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
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-# gives unlimited permission to copy and/or distribute it,
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-
-# AM_PROG_MKDIR_P
-# ---------------
-# Check for `mkdir -p'.
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-dnl Automake 1.8 to 1.9.6 used to define mkdir_p.  We now use MKDIR_P,
-dnl while keeping a definition of mkdir_p for backward compatibility.
-dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
-dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
-dnl Makefile.ins that do not define MKDIR_P, so we do our own
-dnl adjustment using top_builddir (which is defined more often than
-dnl MKDIR_P).
-AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
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-  */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
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-])
-
-# Helper functions for option handling.                     -*- Autoconf -*-
-
-# Copyright (C) 2001, 2002, 2003, 2005, 2008  Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# serial 4
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-# _AM_MANGLE_OPTION(NAME)
-# -----------------------
-AC_DEFUN([_AM_MANGLE_OPTION],
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-# _AM_SET_OPTION(NAME)
-# ------------------------------
-# Set option NAME.  Presently that only means defining a flag for this option.
-AC_DEFUN([_AM_SET_OPTION],
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-# _AM_SET_OPTIONS(OPTIONS)
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-AC_DEFUN([_AM_SET_OPTIONS],
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-# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
-# -------------------------------------------
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-AC_DEFUN([_AM_IF_OPTION],
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-
-# Check to make sure that the build environment is sane.    -*- Autoconf -*-
-
-# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008
-# Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
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-# serial 5
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-# AM_SANITY_CHECK
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-# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
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-# with or without modifications, as long as this notice is preserved.
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-# AM_PROG_INSTALL_STRIP
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-# is unlikely to handle the host's binaries.
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-AC_DEFUN([AM_PROG_INSTALL_STRIP],
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-# tool to use in cross-compilation environments, therefore Automake
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-# Copyright (C) 2006, 2008  Free Software Foundation, Inc.
-#
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-# serial 2
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-# _AM_SUBST_NOTMAKE(VARIABLE)
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-
-# Check how to create a tarball.                            -*- Autoconf -*-
-
-# Copyright (C) 2004, 2005  Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
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-# serial 2
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-# _AM_PROG_TAR(FORMAT)
-# --------------------
-# Check how to create a tarball in format FORMAT.
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-# writing to stdout a FORMAT-tarball containing the directory
-# $tardir.
-#     tardir=directory && $(am__tar) > result.tar
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-# Substitute a variable $(am__untar) that extract such
-# a tarball read from stdin.
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-     [m4_case([$1], [ustar],, [pax],,
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-AC_MSG_CHECKING([how to create a $1 tar archive])
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-_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
-_am_tools=${am_cv_prog_tar_$1-$_am_tools}
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-    am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
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-    am__untar="$_am_tar -xf -"
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-  plaintar)
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-  AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
-  rm -rf conftest.dir
-  if test -s conftest.tar; then
-    AM_RUN_LOG([$am__untar <conftest.tar])
-    grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
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-AC_SUBST([am__tar])
-AC_SUBST([am__untar])
-]) # _AM_PROG_TAR
-

bootstrap.conf

@@ -0,0 +1,93 @@
+# Bootstrap configuration.                                          -*- sh -*-
+
+# Copyright (C) 2006-2025 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+
+# gnulib modules used by this package.
+gnulib_modules="
+	close-stream
+	closeout
+	error
+	fclose
+	fcntl-h
+	fdopen
+	fflush
+	fopen
+	getopt-gnu
+	inet_pton
+	isnan
+	netinet_in
+	nstrftime
+	progname
+	quote
+	realloc-gnu
+	stat
+	stddef
+	stdio
+	stdlib
+	stpncpy
+	strdup-posix
+	strstr
+	strtod
+	time_r
+	xalloc
+"
+
+# Additional xgettext options to use.  Use "\\\newline" to break lines.
+XGETTEXT_OPTIONS=$XGETTEXT_OPTIONS'\\\
+ --from-code=UTF-8\\\
+ --flag=asprintf:2:c-format --flag=vasprintf:2:c-format\\\
+ --flag=asnprintf:3:c-format --flag=vasnprintf:3:c-format\\\
+ --flag=wrapf:1:c-format\\\
+'
+
+# If "AM_GNU_GETTEXT(external" or "AM_GNU_GETTEXT([external]"
+# appears in configure.ac, exclude some unnecessary files.
+# Without grep's -E option (not portable enough, pre-configure),
+# the following test is ugly.  Also, this depends on the existence
+# of configure.ac, not the obsolescent-named configure.in.  But if
+# you're using this infrastructure, you should care about such things.
+
+gettext_external=0
+grep '^[	 ]*AM_GNU_GETTEXT(external\>' configure.ac > /dev/null &&
+  gettext_external=1
+grep '^[	 ]*AM_GNU_GETTEXT(\[external]' configure.ac > /dev/null &&
+  gettext_external=1
+
+if test $gettext_external = 1; then
+  # Gettext supplies these files, but we don't need them since
+  # we don't have an intl subdirectory.
+  excluded_files='
+      m4/glibc2.m4
+      m4/intdiv0.m4
+      m4/lcmessage.m4
+      m4/lock.m4
+      m4/printf-posix.m4
+      m4/size_max.m4
+      m4/uintmax_t.m4
+      m4/ulonglong.m4
+      m4/visibility.m4
+      m4/xsize.m4
+  '
+fi
+
+# Build prerequisites
+buildreq="\
+autoconf   2.59
+automake   1.9.6
+git        1.5.5
+tar        -
+"

build-aux/.gitignore

@@ -0,0 +1,12 @@
+/ar-lib
+/compile
+/config.guess
+/config.rpath
+/config.sub
+/depcomp
+/install-sh
+/ltmain.sh
+/mdate-sh
+/missing
+/test-driver
+/texinfo.tex

build-aux/git-version-gen

@@ -0,0 +1,227 @@
+#!/bin/sh
+# Print a version string.
+scriptversion=2022-01-27.18; # UTC
+
+# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# This script is derived from GIT-VERSION-GEN from GIT: https://git-scm.com/.
+# It may be run two ways:
+# - from a git repository in which the "git describe" command below
+#   produces useful output (thus requiring at least one signed tag)
+# - from a non-git-repo directory containing a .tarball-version file, which
+#   presumes this script is invoked like "./git-version-gen .tarball-version".
+
+# In order to use intra-version strings in your project, you will need two
+# separate generated version string files:
+#
+# .tarball-version - present only in a distribution tarball, and not in
+#   a checked-out repository.  Created with contents that were learned at
+#   the last time autoconf was run, and used by git-version-gen.  Must not
+#   be present in either $(srcdir) or $(builddir) for git-version-gen to
+#   give accurate answers during normal development with a checked out tree,
+#   but must be present in a tarball when there is no version control system.
+#   Therefore, it cannot be used in any dependencies.  GNUmakefile has
+#   hooks to force a reconfigure at distribution time to get the value
+#   correct, without penalizing normal development with extra reconfigures.
+#
+# .version - present in a checked-out repository and in a distribution
+#   tarball.  Usable in dependencies, particularly for files that don't
+#   want to depend on config.h but do want to track version changes.
+#   Delete this file prior to any autoconf run where you want to rebuild
+#   files to pick up a version string change; and leave it stale to
+#   minimize rebuild time after unrelated changes to configure sources.
+#
+# As with any generated file in a VC'd directory, you should add
+# /.version to .gitignore, so that you don't accidentally commit it.
+# .tarball-version is never generated in a VC'd directory, so needn't
+# be listed there.
+#
+# Use the following line in your configure.ac, so that $(VERSION) will
+# automatically be up-to-date each time configure is run (and note that
+# since configure.ac no longer includes a version string, Makefile rules
+# should not depend on configure.ac for version updates).
+#
+# AC_INIT([GNU project],
+#         m4_esyscmd([build-aux/git-version-gen .tarball-version]),
+#         [bug-project@example])
+#
+# Then use the following lines in your Makefile.am, so that .version
+# will be present for dependencies, and so that .version and
+# .tarball-version will exist in distribution tarballs.
+#
+# EXTRA_DIST = $(top_srcdir)/.version
+# BUILT_SOURCES = $(top_srcdir)/.version
+# $(top_srcdir)/.version:
+#	echo '$(VERSION)' > $@-t
+#	mv $@-t $@
+# dist-hook:
+#	echo '$(VERSION)' > $(distdir)/.tarball-version
+
+
+me=$0
+
+year=`expr "$scriptversion" : '\([^-]*\)'`
+version="git-version-gen $scriptversion
+
+Copyright (C) ${year} Free Software Foundation, Inc.
+License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
+This is free software: you are free to change and redistribute it.
+There is NO WARRANTY, to the extent permitted by law."
+
+usage="\
+Usage: $me [OPTION]... \$srcdir/.tarball-version [TAG-NORMALIZATION-SED-SCRIPT]
+Print a version string.
+
+Options:
+
+   --prefix PREFIX    prefix of git tags (default 'v')
+   --fallback VERSION
+                      fallback version to use if \"git --version\" fails
+
+   --help             display this help and exit
+   --version          output version information and exit
+
+Running without arguments will suffice in most cases."
+
+prefix=v
+fallback=
+
+while test $# -gt 0; do
+  case $1 in
+    --help) echo "$usage"; exit 0;;
+    --version) echo "$version"; exit 0;;
+    --prefix) shift; prefix=${1?};;
+    --fallback) shift; fallback=${1?};;
+    -*)
+      echo "$0: Unknown option '$1'." >&2
+      echo "$0: Try '--help' for more information." >&2
+      exit 1;;
+    *)
+      if test "x$tarball_version_file" = x; then
+        tarball_version_file="$1"
+      elif test "x$tag_sed_script" = x; then
+        tag_sed_script="$1"
+      else
+        echo "$0: extra non-option argument '$1'." >&2
+        exit 1
+      fi;;
+  esac
+  shift
+done
+
+if test "x$tarball_version_file" = x; then
+    echo "$usage"
+    exit 1
+fi
+
+tag_sed_script="${tag_sed_script:-s/x/x/}"
+
+nl='
+'
+
+# Avoid meddling by environment variable of the same name.
+v=
+v_from_git=
+
+# First see if there is a tarball-only version file.
+# then try "git describe", then default.
+if test -f $tarball_version_file
+then
+    v=`cat $tarball_version_file` || v=
+    case $v in
+        *$nl*) v= ;; # reject multi-line output
+    esac
+    test "x$v" = x \
+        && echo "$0: WARNING: $tarball_version_file is damaged" 1>&2
+fi
+
+if test "x$v" != x
+then
+    : # use $v
+# Otherwise, if there is at least one git commit involving the working
+# directory, and "git describe" output looks sensible, use that to
+# derive a version string.
+elif test "`git log -1 --pretty=format:x . 2>&1`" = x \
+    && v=`git describe --abbrev=4 --match="$prefix*" HEAD 2>/dev/null \
+          || git describe --abbrev=4 HEAD 2>/dev/null` \
+    && v=`printf '%s\n' "$v" | sed "$tag_sed_script"` \
+    && case $v in
+         $prefix[0-9]*) ;;
+         *) (exit 1) ;;
+       esac
+then
+    # Is this a new git that lists number of commits since the last
+    # tag or the previous older version that did not?
+    #   Newer: v6.10-77-g0f8faeb
+    #   Older: v6.10-g0f8faeb
+    vprefix=`expr "X$v" : 'X\(.*\)-g[^-]*$'` || vprefix=$v
+    case $vprefix in
+        *-*) : git describe is probably okay three part flavor ;;
+        *)
+            : git describe is older two part flavor
+            # Recreate the number of commits and rewrite such that the
+            # result is the same as if we were using the newer version
+            # of git describe.
+            vtag=`echo "$v" | sed 's/-.*//'`
+            commit_list=`git rev-list "$vtag"..HEAD 2>/dev/null` \
+                || { commit_list=failed;
+                     echo "$0: WARNING: git rev-list failed" 1>&2; }
+            numcommits=`echo "$commit_list" | wc -l`
+            v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`;
+            test "$commit_list" = failed && v=UNKNOWN
+            ;;
+    esac
+
+    # Change the penultimate "-" to ".", for version-comparing tools.
+    # Remove the "g" to save a byte.
+    v=`echo "$v" | sed 's/-\([^-]*\)-g\([^-]*\)$/.\1-\2/'`;
+    v_from_git=1
+elif test "x$fallback" = x || git --version >/dev/null 2>&1; then
+    v=UNKNOWN
+else
+    v=$fallback
+fi
+
+v=`echo "$v" |sed "s/^$prefix//"`
+
+# Test whether to append the "-dirty" suffix only if the version
+# string we're using came from git.  I.e., skip the test if it's "UNKNOWN"
+# or if it came from .tarball-version.
+if test "x$v_from_git" != x; then
+  # Don't declare a version "dirty" merely because a timestamp has changed.
+  git update-index --refresh > /dev/null 2>&1
+
+  dirty=`exec 2>/dev/null;git diff-index --name-only HEAD` || dirty=
+  case "$dirty" in
+      '') ;;
+      *) # Append the suffix only if there isn't one already.
+          case $v in
+            *-dirty) ;;
+            *) v="$v-dirty" ;;
+          esac ;;
+  esac
+fi
+
+# Omit the trailing newline, so that m4_esyscmd can use the result directly.
+printf %s "$v"
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:

build-aux/snippet/.gitignore

@@ -0,0 +1,5 @@
+/_Noreturn.h
+/arg-nonnull.h
+/c++defs.h
+/unused-parameter.h
+/warn-on-use.h

config.h.in

@@ -1,113 +0,0 @@
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* default path of dhcpd.conf */
-#undef DHCPDCONF_FILE
-
-/* default path of dhcpd.leases */
-#undef DHCPDLEASE_FILE
-
-/* Define to 1 if you have the <arpa/inet.h> header file. */
-#undef HAVE_ARPA_INET_H
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#undef HAVE_FCNTL_H
-
-/* Define to 1 if you have the <getopt.h> header file. */
-#undef HAVE_GETOPT_H
-
-/* Define to 1 if you have the `inet_ntoa' function. */
-#undef HAVE_INET_NTOA
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#undef HAVE_INTTYPES_H
-
-/* Define to 1 if you have the <libintl.h> header file. */
-#undef HAVE_LIBINTL_H
-
-/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
-   to 0 otherwise. */
-#undef HAVE_MALLOC
-
-/* Define to 1 if you have the <memory.h> header file. */
-#undef HAVE_MEMORY_H
-
-/* Define to 1 if you have the `memset' function. */
-#undef HAVE_MEMSET
-
-/* Define to 1 if you have the <netinet/in.h> header file. */
-#undef HAVE_NETINET_IN_H
-
-/* Define to 1 if stdbool.h conforms to C99. */
-#undef HAVE_STDBOOL_H
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#undef HAVE_STDINT_H
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#undef HAVE_STDLIB_H
-
-/* Define to 1 if you have the `strerror' function. */
-#undef HAVE_STRERROR
-
-/* Define to 1 if you have the <strings.h> header file. */
-#undef HAVE_STRINGS_H
-
-/* Define to 1 if you have the <string.h> header file. */
-#undef HAVE_STRING_H
-
-/* Define to 1 if you have the `strstr' function. */
-#undef HAVE_STRSTR
-
-/* Define to 1 if you have the <sys/socket.h> header file. */
-#undef HAVE_SYS_SOCKET_H
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#undef HAVE_SYS_STAT_H
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#undef HAVE_SYS_TYPES_H
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#undef HAVE_UNISTD_H
-
-/* Define to 1 if the system has the type `_Bool'. */
-#undef HAVE__BOOL
-
-/* default output format */
-#undef OUTPUT_FORMAT
-
-/* default output limitations */
-#undef OUTPUT_LIMIT
-
-/* Name of package */
-#undef PACKAGE
-
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION
-
-/* Define to 1 if you have the ANSI C header files. */
-#undef STDC_HEADERS
-
-/* Version number of package */
-#undef VERSION
-
-/* Define to rpl_malloc if the replacement function should be used. */
-#undef malloc
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-#undef size_t

configure.ac

@@ -1,52 +1,172 @@
-#                                               -*- Autoconf -*-
+# -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-AC_PREREQ(2.63)
+AC_PREREQ([2.69])
-AC_INIT([dhcpd-pools],[2.13],[kerolasa@iki.fi],,[http://dhcpd-pools.sourceforge.net/])
+AC_CONFIG_MACRO_DIRS([m4])
-AM_INIT_AUTOMAKE(dhcpd-pools, 2.13)
+AC_INIT([dhcpd-pools],
-AC_CONFIG_SRCDIR([config.h.in])
+	[m4_esyscmd([build-aux/git-version-gen .tarball-version])],
+	[kerolasa@iki.fi],[],
+	[https://dhcpd-pools.sourceforge.net/])
+PACKAGE_MAINTAINER="Sami Kerola"
+AC_SUBST([PACKAGE_MAINTAINER])
+AC_CONFIG_AUX_DIR([build-aux])
+AM_INIT_AUTOMAKE([
+	-Wall
+	-Wextra-portability
+	1.12
+	foreign
+	dist-xz
+	no-dist-gzip
+	parallel-tests
+	subdir-objects
+	tar-pax
+])
+AC_CONFIG_SRCDIR([src/dhcpd-pools.h])
 AC_CONFIG_HEADERS([config.h])
 
-# Checks for programs.
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])],
+			    [AC_SUBST([AM_DEFAULT_VERBOSITY], [1])])
+
+# Checks for programs
+AC_USE_SYSTEM_EXTENSIONS
+AC_C_RESTRICT
 AC_PROG_CC
+gl_EARLY
+gl_INIT
+AC_PROG_MAKE_SET
+LT_INIT
 
 # Checks for libraries.
+LT_INIT
 
 # Checks for header files.
-AC_CHECK_HEADERS([arpa/inet.h fcntl.h libintl.h netinet/in.h stdlib.h string.h strings.h sys/socket.h unistd.h])
+AC_CHECK_HEADERS([\
+	arpa/inet.h \
+	fcntl.h \
+	libintl.h \
+	limits.h \
+	sys/socket.h \
+])
+
+AC_ARG_WITH(
+	[uthash],
+	[AS_HELP_STRING([--with-uthash=DIR], [Use uthash from [DIR]/uthash.h)])],
+	[AS_CASE([$with_uthash],
+		[yes], [],
+		[no], [AC_MSG_ERROR([the uthash is required])],
+		[CPPFLAGS="$CPPFLAGS -I$with_uthash"]
+	)]
+)
+AC_CHECK_HEADER([uthash.h], [], [AC_MSG_ERROR([Unable to find uthash.h])])
 
 # Checks for typedefs, structures, and compiler characteristics.
+AC_C_INLINE
 AC_HEADER_STDBOOL
 AC_TYPE_SIZE_T
+AC_TYPE_UINT32_T
 
 # Checks for library functions.
-AC_FUNC_MALLOC
+AC_FUNC_ERROR_AT_LINE
-AC_CHECK_FUNCS([inet_ntoa memset strerror strstr])
+AC_CHECK_FUNCS([\
+	__fpending \
+	open_memstream \
+	posix_fadvise \
+])
+AC_CHECK_DECL([strndupa])
 
-# GNU commandline parsing in getopt.h present?
+AC_CHECK_FUNCS([fpclassify], [],
-AC_CHECK_HEADERS(getopt.h, AC_DEFINE(HAVE_GETOPT_H),
+	[AC_CHECK_LIB([m], [fpclassify], [MATH_LIBS="-lm"])]
-        import_sources="getopt.c getopt1.c $import_sources")
+	[AC_CHECK_LIB([m], [__fpclassify], [MATH_LIBS="-lm"])]
+)
+AC_SUBST([MATH_LIBS])
 
-AC_CONFIG_FILES([Makefile
+AS_IF([test "x$ac_cv_func_open_memstream" = "xyes" && test "x$ac_cv_have_decl_strndupa" == "xyes"], [
-                 man/Makefile
+	build_mustach=yes
-                 src/Makefile
+	AC_DEFINE([BUILD_MUSTACH], [1], [build mustach support])
-                 contrib/Makefile])
+], [
+	build_mustach=no
+])
+AM_CONDITIONAL([ENABLE_MUSTACH], [test "x$build_mustach" = xyes])
 
-AC_ARG_WITH(dhcpd-conf,
+AC_MSG_CHECKING([if the compiler supports __builtin_expect])
-	[AC_HELP_STRING([--with-dhcpd-conf], [default path of dhcpd.conf])],
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[
-	AC_DEFINE_UNQUOTED(DHCPDCONF_FILE,"$withval"),
+	return __builtin_expect(1, 1) ? 1 : 0
-	AC_DEFINE(DHCPDCONF_FILE,["/etc/dhcpd.conf"],[default path of dhcpd.conf]))
+]])],[
-AC_ARG_WITH(dhcpd-leases,
+	have_builtin_expect=yes
-	[AC_HELP_STRING([--with-dhcpd-leases], [default path of dhcpd.leases])],
+	AC_MSG_RESULT([yes])
-	AC_DEFINE_UNQUOTED(DHCPDLEASE_FILE,"$withval"),
+],[
-	AC_DEFINE(DHCPDLEASE_FILE,["/var/lib/dhcp/dhcpd.leases"],[default path of dhcpd.leases]))
+	have_builtin_expect=no
-AC_ARG_WITH(output-format,
+	AC_MSG_RESULT([no])
-	[AC_HELP_STRING([--with-output-format], [default output format])],
+])
-	AC_DEFINE_UNQUOTED(OUTPUT_FORMAT,"$withval"),
+AS_IF([test x$have_builtin_expect = xyes], [
-	AC_DEFINE(OUTPUT_FORMAT,["text"],[default output format]))
+	AC_DEFINE([HAVE_BUILTIN_EXPECT], [1],
-AC_ARG_WITH(output-limit,
+		[The compiler supports __builtin_expect])
-	[AC_HELP_STRING([--with-output-limit], [default output limitations])],
+])
-	AC_DEFINE_UNQUOTED(OUTPUT_LIMIT,"$withval"),
+
-	AC_DEFINE(OUTPUT_LIMIT,["77"],[default output limitations]))
+AC_ARG_WITH([dhcpd-conf],
+	[AS_HELP_STRING([--with-dhcpd-conf=FILE],[default path of dhcpd.conf])],
+	[dhcpd_conf_path="$withval"],
+	[dhcpd_conf_path="/etc/dhcpd.conf"])
+AC_DEFINE_UNQUOTED([DHCPDCONF_FILE], ["$dhcpd_conf_path"], [default path of dhcpd.conf])
+AC_SUBST([DHCPDCONF_FILE], [$dhcpd_conf_path])
+
+AC_ARG_WITH([dhcpd-leases],
+	[AS_HELP_STRING([--with-dhcpd-leases=FILE],[default path of dhcpd.leases])],
+	[dhcpd_leases_path="$withval"],
+	[dhcpd_leases_path="/var/lib/dhcp/dhcpd.leases"])
+AC_DEFINE_UNQUOTED([DHCPDLEASE_FILE], ["$dhcpd_leases_path"], [default path of dhcpd.leases])
+AC_SUBST([DHCPDLEASE_FILE], [$dhcpd_leases_path])
+
+AC_ARG_WITH([output-format],
+	[AS_HELP_STRING([--with-output-format=FORMAT],[default output format])],
+	[output_format="$withval"],
+	[output_format="text"])
+AC_DEFINE_UNQUOTED([OUTPUT_FORMAT], ["$output_format"], [default output format])
+AC_SUBST([OUTPUT_FORMAT], [$output_format])
+
+AC_ARG_WITH([output-limit],
+	[AS_HELP_STRING([--with-output-limit=MASK],[default output limit])],
+	[output_limit="$withval"],
+	[output_limit="77"])
+AC_DEFINE_UNQUOTED([OUTPUT_LIMIT], ["$output_limit"], [default output limit])
+AC_SUBST([OUTPUT_LIMIT], [$output_limit])
+
+AC_ARG_WITH([warning],
+	[AS_HELP_STRING([--with-warning=NUM],[monitoring warning default])],
+	[warning_percent="$withval"],
+	[warning_percent="80"])
+AC_DEFINE_UNQUOTED([ALARM_WARN], [$warning_percent], [monitoring warning default])
+AC_SUBST([ALARM_WARN], [$warning_percent])
+
+AC_ARG_WITH([critical],
+	[AS_HELP_STRING([--with-critical=NUM],[monitoring critical default])],
+	[critical_percent="$withval"],
+	[critical_percent="90"])
+AC_DEFINE_UNQUOTED([ALARM_CRIT], [$critical_percent], [monitoring critical default])
+AC_SUBST([ALARM_CRIT], [$critical_percent])
+
+AC_ARG_ENABLE([doxygen],
+	AS_HELP_STRING([--enable-doxygen],[build internal api documentation @<:@default=disabled@:>@]),
+	[], [enable_doxygen=no])
+AM_CONDITIONAL([ENABLE_DOXYGEN],  [test "x$enable_doxygen" = "xyes"])
+
+AS_IF([test x$enable_doxygen = xyes], [
+	AC_CHECK_PROGS([DOXYGEN], [doxygen])
+	AS_IF([test "x$DOXYGEN" = "x"],
+		AC_MSG_ERROR([doxygen not in path])
+	)
+
+	AC_CHECK_PROGS([DOXYGEN_DOT], [dot])
+		AS_IF([test "x$DOXYGEN" = "x"],
+		AC_MSG_WARN([dot not in path, internal documentation graphs are not generated])
+	)
+])
+AM_CONDITIONAL([HAVE_DOXYGEN], [test "x$DOXYGEN" != "x"])
+AM_CONDITIONAL([HAVE_DOXYGEN_DOT], [test "x$DOXYGEN_DOT" != "x"])
+
+AC_CONFIG_FILES([
+	Makefile
+	lib/Makefile
+])
 
 AC_OUTPUT

contrib/.gitignore

@@ -0,0 +1 @@
+/nagios.conf

contrib/Makefile.am

@@ -1,2 +0,0 @@
-contribdir = $(datadir)/dhcpd-pools/
-dist_contrib_SCRIPTS = dhcpd-pools.cgi snmptest.pl

contrib/Makefile.in

@@ -1,379 +0,0 @@
-# Makefile.in generated by automake 1.11.1 from Makefile.am.
-# @configure_input@
-
-# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
-# Inc.
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-@SET_MAKE@
-
-VPATH = @srcdir@
-pkgdatadir = $(datadir)/@PACKAGE@
-pkgincludedir = $(includedir)/@PACKAGE@
-pkglibdir = $(libdir)/@PACKAGE@
-pkglibexecdir = $(libexecdir)/@PACKAGE@
-am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
-install_sh_DATA = $(install_sh) -c -m 644
-install_sh_PROGRAM = $(install_sh) -c
-install_sh_SCRIPT = $(install_sh) -c
-INSTALL_HEADER = $(INSTALL_DATA)
-transform = $(program_transform_name)
-NORMAL_INSTALL = :
-PRE_INSTALL = :
-POST_INSTALL = :
-NORMAL_UNINSTALL = :
-PRE_UNINSTALL = :
-POST_UNINSTALL = :
-subdir = contrib
-DIST_COMMON = $(dist_contrib_SCRIPTS) $(srcdir)/Makefile.am \
-	$(srcdir)/Makefile.in
-ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/configure.ac
-am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
-	$(ACLOCAL_M4)
-mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
-CONFIG_HEADER = $(top_builddir)/config.h
-CONFIG_CLEAN_FILES =
-CONFIG_CLEAN_VPATH_FILES =
-am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
-am__vpath_adj = case $$p in \
-    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
-    *) f=$$p;; \
-  esac;
-am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
-am__install_max = 40
-am__nobase_strip_setup = \
-  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
-am__nobase_strip = \
-  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
-am__nobase_list = $(am__nobase_strip_setup); \
-  for p in $$list; do echo "$$p $$p"; done | \
-  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
-  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
-    if (++n[$$2] == $(am__install_max)) \
-      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
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contrib/Makemodule.am

@@ -0,0 +1,5 @@
+contribdir = $(datadir)/dhcpd-pools/
+PATHFILES += contrib/nagios.conf
+dist_contrib_SCRIPTS = contrib/snmptest.pl
+dist_contrib_DATA = contrib/nagios.conf
+EXTRA_DIST += contrib/munin_plugins

contrib/PKGBUILD

@@ -0,0 +1,36 @@
+# Archlinux package file. Just download this file, and
+#	makepkg PKGBUILD
+#	pacman -U ./dhcpd-pools*.pkg.tar.xz
+
+pkgname=dhcpd-pools
+pkgver=0
+pkgrel=1
+pkgdesc="ISC dhcpd lease status utility"
+arch=('i686' 'x86_64')
+url=https://dhcpd-pools.sourceforge.net/
+license=('BSD')
+depends=('pacman')
+makedepends=('uthash' 'git')
+source=("$pkgname"::'git://git.code.sf.net/p/dhcpd-pools/code')
+md5sums=('SKIP')
+
+pkgver() {
+  cd "$srcdir/$pkgname"
+  # Use the tag of the last commit
+  git describe --long | sed -E 's/([^-]*-g)/r\1/;s/-/./g'
+}
+
+build() {
+  cd "$srcdir/$pkgname"
+  ./bootstrap
+  ./configure \
+	--prefix=/usr \
+	--bindir=/usr/bin
+  make
+}
+
+package() {
+  cd "$srcdir/$pkgname"
+  make PREFIX=/ DESTDIR="$pkgdir" install
+  install -D -m644 COPYING "${pkgdir}/usr/share/licenses/${pkgname}/COPYING"
+}

contrib/dhcpd-pools.cgi

@@ -1,34 +0,0 @@
-#!/bin/sh
-#
-# Simple CGI for dhcpd-pools.
-
-echo Content-type: text/html
-echo
-
-# To make lease table more fancy use CSS definition something
-# like this in your style.css file.
-#
-# TABLE.dhcpd-pools {
-#    border-style : groove;
-#    margin-left : 2px;
-#    foo : bar;
-# }
-#
-# http://www.w3.org/TR/REC-CSS2/tables.html
-#
-# And uncomment this line.
-#
-#echo <link type="text/css" rel="stylesheet" href="/style.css" />
-
-echo "<html>"
-echo "<body>"
-echo "<p>This was situation at "
-date
-echo "</p>"
-
-/usr/local/bin/dhcpd-pools --format html
-
-echo "</body>"
-echo "</html>"
-
-# EOF

contrib/kerolasa.gpg

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+OC+wu0oRlGQ/X6iuuDfS
+=fVwo
+-----END PGP PUBLIC KEY BLOCK-----

contrib/munin_plugins/dhcpstats_abs.js

@@ -0,0 +1,44 @@
+#!/usr/bin/env node
+
+var command = "dhcpd-pools"
+var timeout = 5000;     // (ms) if the command take longer, then kill it
+
+var execFile = require('child_process').execFile;
+var echo     = require('util').print;
+
+var arg = process.argv[2];
+
+if ("autoconf" === arg) {
+    echo("yes\n");
+    return 0;
+}
+
+execFile(command, [ "--format=j", "--sort=n" ], { timeout: timeout }, function(error, stdout, stderr) {
+    if (error !== null) {
+        console.log('exec error: ' + error);
+        return 1;
+    }
+
+    stdout = JSON.parse(stdout);
+
+    if ("config" === arg) {
+        echo("graph_title dhcp usage (number of machines)\n");
+        echo("graph_vlabel nb of machines\n");
+        echo("graph_scale no\n");
+        echo("graph_category network\n");
+
+        stdout["subnets"].forEach(function(subnet) {
+            var location = subnet["location"];
+            var range    = subnet["range"];
+            echo(location + '.label ' + location + ' (' + range + ')\n');
+        });
+    } else {
+        stdout["shared-networks"].forEach(function(network) {
+            var location = network["location"];
+            var used     = network["used"];
+            var defined  = network["defined"];
+            echo(location + '.value ' + used + '\n');
+        });
+    }
+
+});

contrib/munin_plugins/dhcpstats_abs.php

@@ -0,0 +1,37 @@
+#!/usr/bin/env php
+<?php
+error_reporting(E_ALL);
+ini_set("display_errors", true);
+
+$ret="";
+$xml = exec("dhcpd-pools --format x --sort n", $ret);
+$xml = join($ret);
+
+$xml = new SimpleXMLElement($xml);
+
+
+if ($argc>1 && $argv[1]=="autoconf") {
+    echo "yes\n";
+    return;
+} elseif ($argc>1 && $argv[1]=="config") {
+    $xml2 = $xml->xpath("subnet");
+    echo "graph_title dhcp usage (number of machines)\n";
+    echo "graph_vlabel nb of machines\n";
+    echo "graph_scale no\n";
+    echo "graph_category network\n";
+    foreach ($xml2 as $xml3) {
+        $location = (string) $xml3->location;
+	$range    = (string) $xml3->range;
+        echo "$location.label $location ($range)\n";
+    }
+} else {
+    $xml2 = $xml->xpath("shared-network");
+    foreach ($xml2 as $xml3) {
+        $location = (string) $xml3->location;
+        $used     = (int) $xml3->used;
+        $defined  = (int) $xml3->defined;
+        $pourcent = ceil($used*10000/$defined)/100;
+        echo "$location.value $used\n";
+    }
+}
+

contrib/munin_plugins/dhcpstats_percent.js

@@ -0,0 +1,49 @@
+#!/usr/bin/env node
+
+var command = "dhcpd-pools"
+var timeout = 5000;     // (ms) if the command take longer, then kill it
+
+var execFile = require('child_process').execFile;
+var echo     = require('util').print;
+
+var arg = process.argv[2];
+
+if ("autoconf" === arg) {
+    echo("yes\n");
+    return 0;
+}
+
+execFile(command, [ "--format=j", "--sort=n" ], { timeout: timeout }, function(error, stdout, stderr) {
+    if (error !== null) {
+        console.log('exec error: ' + error);
+        return 1;
+    }
+
+    stdout = JSON.parse(stdout);
+
+    if ("config" === arg) {
+        echo("graph_title dhcp usage (in percent)\n");
+        echo("graph_args --upper-limit 100 -l 0 --rigid\n");
+        echo("graph_vlabel %\n");
+        echo("graph_scale no\n");
+        echo("graph_category network\n");
+
+        stdout["subnets"].forEach(function(subnet) {
+            var location = subnet["location"];
+            var range    = subnet["range"];
+            echo(location + '.label ' + location + ' (' + range + ')\n');
+            echo(location + '.warning 75\n');
+            echo(location + '.critical 90\n');
+        });
+    } else {
+        stdout["shared-networks"].forEach(function(network) {
+            var location = network["location"];
+            var used     = network["used"];
+            var defined  = network["defined"];
+            // keep 1 digit after decimal point
+            var percent  = Math.ceil(used * 100 / defined) / 10;
+            echo(location + '.value ' + percent + '\n');
+        });
+    }
+
+});

contrib/munin_plugins/dhcpstats_percent.php

@@ -0,0 +1,42 @@
+#!/usr/bin/env php
+<?php
+error_reporting(E_ALL);
+ini_set("display_errors", true);
+
+//$xml = file_get_contents("test.xml");
+$ret="";
+$xml = exec("dhcpd-pools --format x --sort n", $ret);
+$xml = join($ret);
+
+$xml = new SimpleXMLElement($xml);
+
+
+if ($argc>1 && $argv[1]=="autoconf") {
+    echo "yes\n";
+    return;
+} elseif ($argc>1 && $argv[1]=="config") {
+    $xml2 = $xml->xpath("subnet");
+    echo "graph_title dhcp usage (in percent)\n";
+    echo "graph_args --upper-limit 100 -l 0 --rigid\n";
+    echo "graph_vlabel %\n";
+    echo "graph_scale no\n";
+    echo "graph_category network\n";
+    foreach ($xml2 as $xml3) {
+        $location = (string) $xml3->location;
+	$range    = (string) $xml3->range;
+        echo "$location.label $location ($range)\n";
+        echo "$location.warning 75\n";
+        echo "$location.critical 90\n";
+    }
+} else {
+    $xml2 = $xml->xpath("shared-network");
+    foreach ($xml2 as $xml3) {
+        $location = (string) $xml3->location;
+        $used     = (int) $xml3->used;
+        $defined  = (int) $xml3->defined;
+        // keep 1 digit after decimal point
+        $pourcent = ceil($used*1000/$defined)/10;
+        echo "$location.value $pourcent\n";
+    }
+}
+

contrib/nagios.conf.in

@@ -0,0 +1 @@
+command[check_dhcpd_pools]=@bindir@/dhcpd-pools --warning $ARG1$ --critical $ARG2$

contrib/rpm.spec

@@ -0,0 +1,4 @@
+Klaus Slott made a package that works for opensuse, and is
+a good starting point for whom ever happens to need an rpm.
+
+https://build.opensuse.org/package/show/home:Mr_Manor/dhcpd-pools

contrib/snmptest.pl

@@ -23,9 +23,10 @@
 #    you set $dbg to 1 then output will be generated in /tmp.
 
 use strict;
+use NetSNMP::OID;
 
 # Version info:
-my $SNMPver = "snmp1.0";
+my $SNMPver = "snmp1.1";
 my $DHCPver = "dhcp1.0";
 my $VERSION = "$SNMPver/$DHCPver";
 #
@@ -193,7 +194,7 @@ sub ParseDataFile () {
    }
    close IN;
    if ($dbg) {
-      foreach (sort @validoidlist) { print DBG "ValidOID: $_\n"; }
+      foreach (sort Oidcmp @validoidlist) { print DBG "ValidOID: $_\n"; }
    }
 
    if ($dbg) {
@@ -370,7 +371,7 @@ sub GetData ($) {
 
       @userquery = split (/\./, $userqueryoid);
       my $found = 0;
-      foreach (sort @validoidlist) {
+      foreach (sort Oidcmp @validoidlist) {
          $next = $_;
          print DBG "Comparing $userqueryoid vs. $_\n" if $dbg;
          @validoid = split (/\./, $_);
@@ -432,6 +433,12 @@ sub Pong {
    $line = 0;
 }
 
+sub Oidcmp {
+   my $oida = new NetSNMP::OID($a);
+   my $oidb = new NetSNMP::OID($b);
+   snmp_oid_compare($oida, $oidb);
+}
+
 ################################## START ##################################
 #
 # Main

contrib/zabbix.txt

@@ -0,0 +1,4 @@
+Zabbix 5 template, and instructions how to use it, can be found from
+Mathieu's repository.
+
+https://github.com/mmorier86/dhcpd-pools-zabbix-template

depcomp

@@ -1,530 +0,0 @@
-#! /bin/sh
-# depcomp - compile a program generating dependencies as side-effects
-
-scriptversion=2005-07-09.11
-
-# Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
-
-case $1 in
-  '')
-     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
-     exit 1;
-     ;;
-  -h | --h*)
-    cat <<\EOF
-Usage: depcomp [--help] [--version] PROGRAM [ARGS]
-
-Run PROGRAMS ARGS to compile a file, generating dependencies
-as side-effects.
-
-Environment variables:
-  depmode     Dependency tracking mode.
-  source      Source file read by `PROGRAMS ARGS'.
-  object      Object file output by `PROGRAMS ARGS'.
-  DEPDIR      directory where to store dependencies.
-  depfile     Dependency file to output.
-  tmpdepfile  Temporary file to use when outputing dependencies.
-  libtool     Whether libtool is used (yes/no).
-
-Report bugs to <bug-automake@gnu.org>.
-EOF
-    exit $?
-    ;;
-  -v | --v*)
-    echo "depcomp $scriptversion"
-    exit $?
-    ;;
-esac
-
-if test -z "$depmode" || test -z "$source" || test -z "$object"; then
-  echo "depcomp: Variables source, object and depmode must be set" 1>&2
-  exit 1
-fi
-
-# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
-depfile=${depfile-`echo "$object" |
-  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
-tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
-
-rm -f "$tmpdepfile"
-
-# Some modes work just like other modes, but use different flags.  We
-# parameterize here, but still list the modes in the big case below,
-# to make depend.m4 easier to write.  Note that we *cannot* use a case
-# here, because this file can only contain one case statement.
-if test "$depmode" = hp; then
-  # HP compiler uses -M and no extra arg.
-  gccflag=-M
-  depmode=gcc
-fi
-
-if test "$depmode" = dashXmstdout; then
-   # This is just like dashmstdout with a different argument.
-   dashmflag=-xM
-   depmode=dashmstdout
-fi
-
-case "$depmode" in
-gcc3)
-## gcc 3 implements dependency tracking that does exactly what
-## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
-## it if -MD -MP comes after the -MF stuff.  Hmm.
-  "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
-  stat=$?
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  mv "$tmpdepfile" "$depfile"
-  ;;
-
-gcc)
-## There are various ways to get dependency output from gcc.  Here's
-## why we pick this rather obscure method:
-## - Don't want to use -MD because we'd like the dependencies to end
-##   up in a subdir.  Having to rename by hand is ugly.
-##   (We might end up doing this anyway to support other compilers.)
-## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
-##   -MM, not -M (despite what the docs say).
-## - Using -M directly means running the compiler twice (even worse
-##   than renaming).
-  if test -z "$gccflag"; then
-    gccflag=-MD,
-  fi
-  "$@" -Wp,"$gccflag$tmpdepfile"
-  stat=$?
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
-## The second -e expression handles DOS-style file names with drive letters.
-  sed -e 's/^[^:]*: / /' \
-      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
-## This next piece of magic avoids the `deleted header file' problem.
-## The problem is that when a header file which appears in a .P file
-## is deleted, the dependency causes make to die (because there is
-## typically no way to rebuild the header).  We avoid this by adding
-## dummy dependencies for each header file.  Too bad gcc doesn't do
-## this for us directly.
-  tr ' ' '
-' < "$tmpdepfile" |
-## Some versions of gcc put a space before the `:'.  On the theory
-## that the space means something, we add a space to the output as
-## well.
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-hp)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-sgi)
-  if test "$libtool" = yes; then
-    "$@" "-Wp,-MDupdate,$tmpdepfile"
-  else
-    "$@" -MDupdate "$tmpdepfile"
-  fi
-  stat=$?
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-
-  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
-    echo "$object : \\" > "$depfile"
-
-    # Clip off the initial element (the dependent).  Don't try to be
-    # clever and replace this with sed code, as IRIX sed won't handle
-    # lines with more than a fixed number of characters (4096 in
-    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
-    # the IRIX cc adds comments like `#:fec' to the end of the
-    # dependency line.
-    tr ' ' '
-' < "$tmpdepfile" \
-    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
-    tr '
-' ' ' >> $depfile
-    echo >> $depfile
-
-    # The second pass generates a dummy entry for each header file.
-    tr ' ' '
-' < "$tmpdepfile" \
-   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
-   >> $depfile
-  else
-    # The sourcefile does not contain any dependencies, so just
-    # store a dummy comment line, to avoid errors with the Makefile
-    # "include basename.Plo" scheme.
-    echo "#dummy" > "$depfile"
-  fi
-  rm -f "$tmpdepfile"
-  ;;
-
-aix)
-  # The C for AIX Compiler uses -M and outputs the dependencies
-  # in a .u file.  In older versions, this file always lives in the
-  # current directory.  Also, the AIX compiler puts `$object:' at the
-  # start of each line; $object doesn't have directory information.
-  # Version 6 uses the directory in both cases.
-  stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
-  tmpdepfile="$stripped.u"
-  if test "$libtool" = yes; then
-    "$@" -Wc,-M
-  else
-    "$@" -M
-  fi
-  stat=$?
-
-  if test -f "$tmpdepfile"; then :
-  else
-    stripped=`echo "$stripped" | sed 's,^.*/,,'`
-    tmpdepfile="$stripped.u"
-  fi
-
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-
-  if test -f "$tmpdepfile"; then
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-    # Do two passes, one to just change these to
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-    sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
-    sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
-  else
-    # The sourcefile does not contain any dependencies, so just
-    # store a dummy comment line, to avoid errors with the Makefile
-    # "include basename.Plo" scheme.
-    echo "#dummy" > "$depfile"
-  fi
-  rm -f "$tmpdepfile"
-  ;;
-
-icc)
-  # Intel's C compiler understands `-MD -MF file'.  However on
-  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
-  # ICC 7.0 will fill foo.d with something like
-  #    foo.o: sub/foo.c
-  #    foo.o: sub/foo.h
-  # which is wrong.  We want:
-  #    sub/foo.o: sub/foo.c
-  #    sub/foo.o: sub/foo.h
-  #    sub/foo.c:
-  #    sub/foo.h:
-  # ICC 7.1 will output
-  #    foo.o: sub/foo.c sub/foo.h
-  # and will wrap long lines using \ :
-  #    foo.o: sub/foo.c ... \
-  #     sub/foo.h ... \
-  #     ...
-
-  "$@" -MD -MF "$tmpdepfile"
-  stat=$?
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-  # Each line is of the form `foo.o: dependent.h',
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-  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
-  # Some versions of the HPUX 10.20 sed can't process this invocation
-  # correctly.  Breaking it into two sed invocations is a workaround.
-  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
-    sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-tru64)
-   # The Tru64 compiler uses -MD to generate dependencies as a side
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-
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-      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
-      #
-      # With libtool 1.5 this exception was removed, and libtool now
-      # generates 2 separate objects for the 2 libraries.  These two
-      # compilations output dependencies in in $dir.libs/$base.o.d and
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-      # automatically cleaned when .libs/ is deleted, while ignoring
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-      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
-      tmpdepfile2=$dir$base.o.d          # libtool 1.5
-      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
-      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
-      "$@" -Wc,-MD
-   else
-      tmpdepfile1=$dir$base.o.d
-      tmpdepfile2=$dir$base.d
-      tmpdepfile3=$dir$base.d
-      tmpdepfile4=$dir$base.d
-      "$@" -MD
-   fi
-
-   stat=$?
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-   else
-      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
-      exit $stat
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-
-   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
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-   if test -f "$tmpdepfile"; then
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-      # That's a tab and a space in the [].
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-   else
-      echo "#dummy" > "$depfile"
-   fi
-   rm -f "$tmpdepfile"
-   ;;
-
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-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
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-      shift
-    done
-    shift
-  fi
-
-  # Remove `-o $object'.
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-  for arg
-  do
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-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
-    *)
-      set fnord "$@" "$arg"
-      shift # fnord
-      shift # $arg
-      ;;
-    esac
-  done
-
-  test -z "$dashmflag" && dashmflag=-M
-  # Require at least two characters before searching for `:'
-  # in the target name.  This is to cope with DOS-style filenames:
-  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
-  "$@" $dashmflag |
-    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
-  rm -f "$depfile"
-  cat < "$tmpdepfile" > "$depfile"
-  tr ' ' '
-' < "$tmpdepfile" | \
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-dashXmstdout)
-  # This case only exists to satisfy depend.m4.  It is never actually
-  # run, as this mode is specially recognized in the preamble.
-  exit 1
-  ;;
-
-makedepend)
-  "$@" || exit $?
-  # Remove any Libtool call
-  if test "$libtool" = yes; then
-    while test $1 != '--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-  # X makedepend
-  shift
-  cleared=no
-  for arg in "$@"; do
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-    no)
-      set ""; shift
-      cleared=yes ;;
-    esac
-    case "$arg" in
-    -D*|-I*)
-      set fnord "$@" "$arg"; shift ;;
-    # Strip any option that makedepend may not understand.  Remove
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-    -*|$object)
-      ;;
-    *)
-      set fnord "$@" "$arg"; shift ;;
-    esac
-  done
-  obj_suffix="`echo $object | sed 's/^.*\././'`"
-  touch "$tmpdepfile"
-  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
-  rm -f "$depfile"
-  cat < "$tmpdepfile" > "$depfile"
-  sed '1,2d' "$tmpdepfile" | tr ' ' '
-' | \
-## Some versions of the HPUX 10.20 sed can't process this invocation
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-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile" "$tmpdepfile".bak
-  ;;
-
-cpp)
-  # Important note: in order to support this mode, a compiler *must*
-  # always write the preprocessed file to stdout.
-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
-    while test $1 != '--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-
-  # Remove `-o $object'.
-  IFS=" "
-  for arg
-  do
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-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
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-      set fnord "$@" "$arg"
-      shift # fnord
-      shift # $arg
-      ;;
-    esac
-  done
-
-  "$@" -E |
-    sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
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-    sed '$ s: \\$::' > "$tmpdepfile"
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  cat < "$tmpdepfile" >> "$depfile"
-  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
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-msvisualcpp)
-  # Important note: in order to support this mode, a compiler *must*
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-	set fnord "$@"
-	shift
-	shift
-	;;
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-	set fnord "$@" "$arg"
-	shift
-	shift
-	;;
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-  "$@" -E |
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-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
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-  echo "	" >> "$depfile"
-  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-none)
-  exec "$@"
-  ;;
-
-*)
-  echo "Unknown depmode $depmode" 1>&2
-  exit 1
-  ;;
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-
-exit 0
-
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-# time-stamp-end: "$"
-# End:

doc/.gitignore

@@ -0,0 +1,3 @@
+/doxy.conf
+/doxyfile.stamp
+/html

doc/Makemodule.am

@@ -0,0 +1,24 @@
+PATHFILES += \
+	doc/doxy.conf
+nodist_noinst_DATA = \
+	doc/doxy.conf
+
+EXTRA_DIST += \
+	doc/introduction.dox
+
+if ENABLE_DOXYGEN
+
+doc/doxyfile.stamp:
+	$(DOXYGEN) doc/doxy.conf
+	date > doc/doxyfile.stamp
+
+CLEANFILES += doc/doxyfile.stamp
+
+all-local: doc/doxyfile.stamp
+
+clean-local-doc:
+	-rm -rf doc/*html
+
+CLEAN_LOCALS += clean-local-doc
+
+endif

doc/introduction.dox

@@ -0,0 +1,49 @@
+/*!
+@mainpage
+@section introduction Introduction
+
+This is dhcpd-pools ISC dhcp shared network and pool range usage
+analysis.  Purpose of command is to count usage ratio of each IP range
+and shared network pool which ISC dhcpd is in control of.  Users of the
+command are most likely ISPs and other organizations that have large IP
+space.
+
+Program is written C. Design goal is to get analysis done quickly where
+there is lots of data.  On cheap laptop the speed of analysis is roughly
+100k leases per second.  Number of ranges, or shared networks, does not
+make any significant difference in getting analysis done.
+
+@section main-copyright Copyright Policy
+
+The dhcpd-pools has BSD 2-clause license which also known as "Simplified
+BSD License" or "FreeBSD License".
+
+Copyright 2006- Sami Kerola. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+ 1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+The views and conclusions contained in the software and documentation are
+those of the authors and should not be interpreted as representing
+official policies, either expressed or implied, of Sami Kerola.
+
+*/

install-sh

@@ -1,519 +0,0 @@
-#!/bin/sh
-# install - install a program, script, or datafile
-
-scriptversion=2006-12-25.00
-
-# This originates from X11R5 (mit/util/scripts/install.sh), which was
-# later released in X11R6 (xc/config/util/install.sh) with the
-# following copyright and license.
-#
-# Copyright (C) 1994 X Consortium
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
-# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#
-# Except as contained in this notice, the name of the X Consortium shall not
-# be used in advertising or otherwise to promote the sale, use or other deal-
-# ings in this Software without prior written authorization from the X Consor-
-# tium.
-#
-#
-# FSF changes to this file are in the public domain.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# `make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch.
-
-nl='
-'
-IFS=" ""	$nl"
-
-# set DOITPROG to echo to test this script
-
-# Don't use :- since 4.3BSD and earlier shells don't like it.
-doit=${DOITPROG-}
-if test -z "$doit"; then
-  doit_exec=exec
-else
-  doit_exec=$doit
-fi
-
-# Put in absolute file names if you don't have them in your path;
-# or use environment vars.
-
-chgrpprog=${CHGRPPROG-chgrp}
-chmodprog=${CHMODPROG-chmod}
-chownprog=${CHOWNPROG-chown}
-cmpprog=${CMPPROG-cmp}
-cpprog=${CPPROG-cp}
-mkdirprog=${MKDIRPROG-mkdir}
-mvprog=${MVPROG-mv}
-rmprog=${RMPROG-rm}
-stripprog=${STRIPPROG-strip}
-
-posix_glob='?'
-initialize_posix_glob='
-  test "$posix_glob" != "?" || {
-    if (set -f) 2>/dev/null; then
-      posix_glob=
-    else
-      posix_glob=:
-    fi
-  }
-'
-
-posix_mkdir=
-
-# Desired mode of installed file.
-mode=0755
-
-chgrpcmd=
-chmodcmd=$chmodprog
-chowncmd=
-mvcmd=$mvprog
-rmcmd="$rmprog -f"
-stripcmd=
-
-src=
-dst=
-dir_arg=
-dst_arg=
-
-copy_on_change=false
-no_target_directory=
-
-usage="\
-Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
-   or: $0 [OPTION]... SRCFILES... DIRECTORY
-   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
-   or: $0 [OPTION]... -d DIRECTORIES...
-
-In the 1st form, copy SRCFILE to DSTFILE.
-In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
-In the 4th, create DIRECTORIES.
-
-Options:
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-     --version  display version info and exit.
-
-  -c            (ignored)
-  -C            install only if different (preserve the last data modification time)
-  -d            create directories instead of installing files.
-  -g GROUP      $chgrpprog installed files to GROUP.
-  -m MODE       $chmodprog installed files to MODE.
-  -o USER       $chownprog installed files to USER.
-  -s            $stripprog installed files.
-  -t DIRECTORY  install into DIRECTORY.
-  -T            report an error if DSTFILE is a directory.
-
-Environment variables override the default commands:
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-  RMPROG STRIPPROG
-"
-
-while test $# -ne 0; do
-  case $1 in
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-
-    -C) copy_on_change=true;;
-
-    -d) dir_arg=true;;
-
-    -g) chgrpcmd="$chgrpprog $2"
-	shift;;
-
-    --help) echo "$usage"; exit $?;;
-
-    -m) mode=$2
-	case $mode in
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-	    exit 1;;
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-	shift;;
-
-    -o) chowncmd="$chownprog $2"
-	shift;;
-
-    -s) stripcmd=$stripprog;;
-
-    -t) dst_arg=$2
-	shift;;
-
-    -T) no_target_directory=true;;
-
-    --version) echo "$0 $scriptversion"; exit $?;;
-
-    --)	shift
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-
-    -*)	echo "$0: invalid option: $1" >&2
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-
-    *)  break;;
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-      set fnord "$@" "$dst_arg"
-      shift # fnord
-    fi
-    shift # arg
-    dst_arg=$arg
-  done
-fi
-
-if test $# -eq 0; then
-  if test -z "$dir_arg"; then
-    echo "$0: no input file specified." >&2
-    exit 1
-  fi
-  # It's OK to call `install-sh -d' without argument.
-  # This can happen when creating conditional directories.
-  exit 0
-fi
-
-if test -z "$dir_arg"; then
-  trap '(exit $?); exit' 1 2 13 15
-
-  # Set umask so as not to create temps with too-generous modes.
-  # However, 'strip' requires both read and write access to temps.
-  case $mode in
-    # Optimize common cases.
-    *644) cp_umask=133;;
-    *755) cp_umask=22;;
-
-    *[0-7])
-      if test -z "$stripcmd"; then
-	u_plus_rw=
-      else
-	u_plus_rw='% 200'
-      fi
-      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
-    *)
-      if test -z "$stripcmd"; then
-	u_plus_rw=
-      else
-	u_plus_rw=,u+rw
-      fi
-      cp_umask=$mode$u_plus_rw;;
-  esac
-fi
-
-for src
-do
-  # Protect names starting with `-'.
-  case $src in
-    -*) src=./$src;;
-  esac
-
-  if test -n "$dir_arg"; then
-    dst=$src
-    dstdir=$dst
-    test -d "$dstdir"
-    dstdir_status=$?
-  else
-
-    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
-    # might cause directories to be created, which would be especially bad
-    # if $src (and thus $dsttmp) contains '*'.
-    if test ! -f "$src" && test ! -d "$src"; then
-      echo "$0: $src does not exist." >&2
-      exit 1
-    fi
-
-    if test -z "$dst_arg"; then
-      echo "$0: no destination specified." >&2
-      exit 1
-    fi
-
-    dst=$dst_arg
-    # Protect names starting with `-'.
-    case $dst in
-      -*) dst=./$dst;;
-    esac
-
-    # If destination is a directory, append the input filename; won't work
-    # if double slashes aren't ignored.
-    if test -d "$dst"; then
-      if test -n "$no_target_directory"; then
-	echo "$0: $dst_arg: Is a directory" >&2
-	exit 1
-      fi
-      dstdir=$dst
-      dst=$dstdir/`basename "$src"`
-      dstdir_status=0
-    else
-      # Prefer dirname, but fall back on a substitute if dirname fails.
-      dstdir=`
-	(dirname "$dst") 2>/dev/null ||
-	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	     X"$dst" : 'X\(//\)[^/]' \| \
-	     X"$dst" : 'X\(//\)$' \| \
-	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
-	echo X"$dst" |
-	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-		   s//\1/
-		   q
-		 }
-		 /^X\(\/\/\)[^/].*/{
-		   s//\1/
-		   q
-		 }
-		 /^X\(\/\/\)$/{
-		   s//\1/
-		   q
-		 }
-		 /^X\(\/\).*/{
-		   s//\1/
-		   q
-		 }
-		 s/.*/./; q'
-      `
-
-      test -d "$dstdir"
-      dstdir_status=$?
-    fi
-  fi
-
-  obsolete_mkdir_used=false
-
-  if test $dstdir_status != 0; then
-    case $posix_mkdir in
-      '')
-	# Create intermediate dirs using mode 755 as modified by the umask.
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-
-	  *[0-7])
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-	{
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-	    (exit 1); exit 1
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-	# Now rename the file to the real destination.
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-    trap '' 0
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lib/.gitignore

@@ -0,0 +1,262 @@
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man/Makefile.am

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man/Makemodule.am

@@ -0,0 +1,2 @@
+man_MANS = man/dhcpd-pools.1
+PATHFILES += man/dhcpd-pools.1

man/dhcpd-pools.1

@@ -1,136 +0,0 @@
-.\"	Sami Kerola
-.\"	http://www.iki.fi/kerolasa/
-.\"	kerolasa@iki.fi
-.\"
-.\"	Add'l ontributions by:
-.\"		Dan Thorson
-.\"
-.TH DHCPD-POOLS 1 "Jan 21 2011" "SourceForge" "ISC dhcpd analysis"
-.SH NAME
-dhcpd-pools \- ISC dhcpd pools usage analysis
-.SH SYNOPSIS
-.B dhcpd-pools
-[-c file] [-l file] [-f thcxX] [-s nimcptTe] [-r] [-o file] [-L nr] [-v] [-h]
-.SH DESCRIPTION
-The program analyses ISC dhcpd shared network and pool usage and outputs the
-results in a user selectable format.
-.SH FIELDS
-.TP
-.I "shared net name"
-Name of the shared-network for the range.
-.TP
-.I "first ip"
-First IP in lease pool range.
-.TP
-.I "last ip"
-Last IP in lease pool range.
-.TP
-.I "max"
-Number of IPs which exist in a pool, shared network or all together.
-.TP
-.I "cur"
-Number of leases currently in use.
-.TP
-.I "percent"
-Percent of IPs currently in use compared to max.
-.TP
-.I "touch"
-Number of IP's which appear in the lease file, but who's leases have
-expired. A touched IP is either expired or abandoned.  The touched IP count
-is somewhat misleading when you try to determine if an IP pool is big
-enough; it is a better indicator of whether a pool is too large.
-.TP
-.I "t+c"
-The sum of Touched and Currently in-use leases.
-.TP
-.I "t+c perc"
-Percent of IPs either touched or currently in use, compared to max.
-.TP
-.I "bu"
-Failover pair can allocate these addresses. The count appears only if there
-is failover configuration.
-.TP
-.I "bu perc"
-Percent of addresses that failover pair can allocate. The percent appears
-only if there is failover configuration.
-.SH ARGUMENTS
-.TP
-.I "\-c, \-\-config"
-Path to the dhcpd.conf file.
-.TP
-.I "\-l, \-\-leases"
-Path to the dhcpd.leases file.
-.TP
-.I "\-s, \-\-sort"
-Sort ranges by chosen fields as a sorting keys.  Maximum of five sort keys
-can be defined.  Keys weight from left to right IE if more weighting keys
-are equal next one is used. The IP field is default sort key.
-.TP
-.I "\-r, \-\-reverse"
-Sort results in reverse order.
-.TP
-.I "\-f, \-\-format"
-Output format. Currently there is text, html, full-html and csv
-(comma-separated values). Default is text. Standard html (h) outputs only
-the HTML tables, and is useful for embeding more complex web pages.
-Full-html (H) provides complete HTML headers, etc., including in-line CSS.
-Output format xml (x) is similar to the dhcpstatus Perl module output. The
-extended xml (X) format will print ethernet address details.
-.TP
-.I "\-o, \-\-output"
-File where output is written. Default is stdout.
-.TP
-.I "\-L, \-\-limit"
-Limit what will be printed. Syntax is similar to chmod permission string.
-The limit string uses two digits which vary between 0 to 7.  The first digit
-determines which headers to display, and the second digit determines which
-numeric analysis tables to include in the output. The following values are
-"OR'd" together to create the desired output. The default is 77.
-
-.RS
-.PD 0
-.TP
-.B 01
-Print x
-.TP
-.B 02
-Print y
-.TP
-.B 04
-Print z
-.TP
-.B 10
-Print headers for x
-.TP
-.B 20
-Print headers for y
-.TP
-.B 40
-Print headers for z
-.PD
-.RE
-.TP
-.I "\-v, \-\-version"
-Print version information to standard output and exit successfully.
-.TP
-.I "\-h, \-\-help"
-Print help to standard output and exit successfully.
-.SH FILES
-.if n .ta 2.8i
-.if t .ta 2.1i
-/etc/dhcpd.conf
-.br
-    ISC dhcpd configuration file.
-.br
-.br
-/var/lib/dhcp/dhcpd.leases
-.br
-    ISC dhcpd lease file.
-.SH AUTHOR
-Sami Kerola <kerolasa@iki.fi>
-.br
-http://dhcpd-pools.sourceforge.net/
-.SH "SEE ALSO"
-.BR dhcpd.leases (5),
-.BR dhcpd.conf (5),
-.BR chmod (1)

man/dhcpd-pools.1.in

@@ -0,0 +1,329 @@
+'\" t
+.TH DHCPD-POOLS "1" "2024-08-09" "@VERSION@" "User Commands"
+.SH NAME
+dhcpd-pools \- ISC dhcpd pools usage analysis
+.SH SYNOPSIS
+.SY dhcpd-pools
+.OP \-\-config file
+.OP \-\-leases file
+.OP \-\-sort nimcptTe
+.OP \-\-reverse
+.OP \-\-format tHcxXjJ
+.OP \-\-mustach template
+.OP \-\-output file
+.OP \-\-limit nr
+.OP \-\-color when
+.OP \-\-warning percent
+.OP \-\-critical percent
+.OP \-\-warn\-count number
+.OP \-\-crit\-count number
+.OP \-\-snet\-alarms
+.OP \-\-minsize size
+.OP \-\-perfdata
+.OP \-\-version
+.OP \-\-help
+.YS
+.SH DESCRIPTION
+The program analyses ISC dhcpd shared network and pool usage and outputs the
+results in a format selected by user.
+.SH OUTPUT FIELDS
+.TP
+.I "shared net name"
+Name of the shared-network for the range.
+.TP
+.I "first ip"
+First IP in lease pool range.
+.TP
+.I "last ip"
+Last IP in lease pool range.
+.TP
+.I "max"
+Number of IPs which exist in a pool, shared network or all together.
+.TP
+.I "cur"
+Number of leases currently in use.
+.TP
+.I "percent"
+Percent of IPs currently in use compared to max.
+.TP
+.I "touch"
+Number of IP's which appear in the lease file, but who's leases have expired.
+A touched IP is either expired or abandoned.  The touched IP count is
+somewhat misleading when you try to determine if an IP pool is big enough; it
+is a better indicator of whether a pool is too large.
+.TP
+.I "t+c"
+The sum of Touched and Currently in-use leases.
+.TP
+.I "t+c perc"
+Percent of IPs either touched or currently in use, compared to max.
+.TP
+.I "bu"
+Failover pair can allocate these addresses.  The count appears only if there
+is failover configuration.
+.TP
+.I "bu perc"
+Percent of addresses that failover pair can allocate.  The percent appears
+only if there is failover configuration.
+.SH OPTIONS
+.TP
+\fB\-c\fR, \fB\-\-config\fR=\fIFILE\fR
+Path to the dhcpd.conf file.  If the dhcpd.conf has include files they
+can be analysed separately, that can be useful when trying to understand
+or monitor subset of data.
+.TP
+\fB\-l\fR, \fB\-\-leases\fR=\fIFILE\fR
+Path to the dhcpd.leases file.
+.TP
+\fB\-s\fR, \fB\-\-sort\fR=\fI[nimcptTe]\fR
+Sort ranges by chosen fields as a sorting keys.  Keys weight from left to
+right, i.e., if more weighting keys are equal next one is used.  The IP
+field is default sort key.
+.TP
+\fB\-r\fR, \fB\-\-reverse\fR
+Sort results in reverse order.
+.TP
+\fB\-f\fR, \fB\-\-format\fR=\fI[tHcxXjJ]\fR
+Output format.
+Text
+.RI ( t ).
+Full-html
+.RI ( H )
+page output.  In html page critical and warning thresholds can be visualized
+with \-\-color=always option.  The
+.RI ( c )
+stands for comma-separated values.  Output format xml
+.RI ( x )
+is similar to the dhcpstatus Perl module output.  The extended xml
+.RI ( X )
+format will print ethernet address details.  The
+.RI ( j )
+will output in json format, which can be extended with
+.RI ( J )
+to include ethernet address.
+.IP
+The default format is
+.IR @OUTPUT_FORMAT@ .
+.TP
+\fB\-\-mustach\fR=\fITEMPLATE\fR
+Output using mustach
+.I template
+file.  This is useful when the native output formats controlled with
+.B \-\-format
+option do not provide what you need.  See below example mustach template
+that is using all available {{tags}} to demonstrate what can be displayed
+and how.
+.IP
+@bindir@/dhcpd-pools --config @docdir@/dhcpd.conf --leases
+@docdir@/dhcpd.leases --mustach @docdir@/mustach.template
+.TP
+\fB\-o\fR, \fB\-\-output\fR=\fIFILE\fR
+.I File
+where output is written.  Default is stdout.
+.TP
+\fB\-L\fR, \fB\-\-limit\fR=\fINR\fR
+The
+.I NR
+will limit what will be printed.  Syntax is similar to
+.IR chmod (1)
+permission string.  The
+.I NR
+limit string uses two digits which vary between
+.IR 0 \ to \ 7 .
+The first digit determines which headers to display, and the second digit
+determines which numeric analysis tables to include in the output.  The
+following values are "OR'd" together to create the desired output.  The
+default is
+.IR @OUTPUT_LIMIT@ .
+.IP
+.TS
+tab(:);
+ll.
+0\fI1\fR:Print ranges
+0\fI2\fR:Print shared networks
+0\fI4\fR:Print total summary
+\fI1\fR0:Print range header
+\fI2\fR0:Print shared network header
+\fI4\fR0:Print total summary header
+.TE
+.IP
+The output limit for total summary has special meaning in
+.B \-\-warning
+and
+.B \-\-critical
+alarming context.  When the alarming is in use, and total is not wanted
+to be seen then in the case of alarming returning success nothing is
+printed.
+.TP
+\fB\-\-color\fR=\fIwhen\fR
+Use yellow for warning, red for critical, green for suppressed by \-\-minsize
+and blue when \-\-snet\-alarms is the cause of suppression or shared network
+does not have any ranges.  The
+.I when
+string can be
+.BR always ,
+.BR never ,
+or
+.BR auto .
+Default is auto, that uses colors when command is running in interactive
+terminal.  With use of
+.B \-\-warning
+or
+.B \-\-critical
+coloring thresholds can be changed, but one must also use
+.B \-\-format=text
+to avoid turning on alarting mode.
+.TP
+\fB\-\-skip\fR=\fIwhen\fR
+The
+.I when
+can be one of the following:
+.IR ok ,
+.IR warning ,
+.IR critical ,
+.IR minsize ,
+or
+.IR suppressed .
+The skipping criteria is exact match with colors in \-\-color option.
+.TP
+\fB\-\-warning\fR=\fIpercent\fR
+Turn on alarm output format, and specify percentage number which will
+cause an alarm.  If either a range or shared network will exceed
+warning level return value of the command is
+.BR 1 .
+If only range monitoring is needed one can use limit option for scoping,
+for example
+.IR \-L10 .
+To monitor shared network only the limit would be
+.IR \-L20 .
+If warning percentage is not specified it defaults to
+.BR @ALARM_WARN@ .
+The
+.I percent
+argument allows fractions, e.g., 88.8, to be used.
+.TP
+\fB\-\-critical\fR=\fIpercent\fR
+The option is similar to warning, with exception of return value which
+is
+.BR 2 .
+If critical percentage is not specified it defaults to
+.BR @ALARM_CRIT@ .
+.TP
+\fB\-\-warn\-count\fR=\fInumber\fR
+A
+.I number
+of free leases before alarm is raised.  When specified both \-\-warning
+.I percent
+and count
+.I number
+are required to be exceeded in order to alarm criteria being fulfilled.
+.IP
+This option is intended to be used in setup where very large and small
+shared-networks and ranges co-exists.  In such environments percent based
+alarming can lead to either flood of alarms about small ranges, or way too
+great overhead of free addresses in large shared-networks.  Suggested usage
+is to set percentage to a level that makes small ranges to ring, and set the
+count to match level when an enormous shared-network is too few free leases.
+.IP
+Defaults to 2^32, that is size of entire IPv4 address space.
+.TP
+\fB\-\-crit\-count\fR=\fInumber\fR
+Same as \-\-warn\-count, but for critical alarms.
+.TP
+\fB\-\-snet\-alarms
+Suppress range alarms that are part of shared networks.  Use of this option
+will keep alarm criteria applied to ranges that are not part of shared-net
+along with shared-net alarms.  This option may help reducing alarm noise for
+configurations that has lots of small ranges in big shared-networks.
+.TP
+\fB\-\-minsize\fR=\fIsize\fR
+Ignore ranges and shared networks that are smaller or equal to the
+defined size.  This option is meaningful only in context of alarming, and
+will intended to suppress for example single host ranges.  By default this
+option is not in use.
+.TP
+\fB\-p\fR, \fB\-\-perfdata\fR
+Print additional performance data, like lease count, touched leases and
+backup leases.  This option is meaningful only in context of alarming and
+will print lots of data, if there are many networks.  By default this option
+is not in use.
+.TP
+\fB\-A\fR, \fB\-\-all\-as\-shared\fR
+Treat all stand-alone subnets as shared-network with named formed from it's
+CIDR.  By default this option is not in use for backwards compatibility.
+.TP
+\fB\-\-ip\-version\fR=\fI4|6\fR
+Force command to read configuration and leases files in IPv4 or IPv6 mode.
+Notice that when inputs do not match with what is forced analysis output is
+garbage.  This option should not be necessary to use, and exists only to
+allow debugging.
+.TP
+\fB\-v\fR, \fB\-\-version\fR
+Print version information to standard output and exit successfully.
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+Print help to standard output and exit successfully.
+.SH EXAMPLES
+.TP
+Print ranges header, and analysis.
+$ dhcpd-pools \-L 11 \-c dhcpd.conf \-l dhcpd.leases
+.br
+Ranges:
+.br
+shared net name [...]
+.TP
+Print shared networks and totals, both headers and results
+$ dhcpd-pools \-L 66 \-c dhcpd.conf \-l dhcpd.leases shared net name
+.br
+[...]
+.TP
+Alarming
+$ dhcpd-pools \-c dhcpd.conf \-l dhcpd.leases \-\-critical 80.1 \-\-warning 75
+.br
+CRITICAL: dhcpd-pools: Ranges; crit: 14 warn: 22 ok: 220 Shared nets; crit: 1 warn: 0 ok: 4
+.IP
+$ dhcpd-pools \-c dhcpd.conf \-l dhcpd.leases \-L 22 \-\-critical 70 \-\-warning 50
+.br
+[no-output]
+.br
+Suppress printing OK, and make alarm only to go off if shared networks
+exceed critial or warning levels.
+.SH FILES
+.TP
+@DHCPDCONF_FILE@
+ISC dhcpd configuration file.
+.TP
+@DHCPDLEASE_FILE@
+ISC dhcpd lease file.
+.TP
+@docdir@/prometheus.template
+Prometheus text file collector mustach template.
+.SH AUTHORS
+Original design by Sami Kerola.
+.br
+uthash by Troy D. Hanson.
+.br
+XML support by Dominic Germain, Sogetel inc.
+.br
+IPv6 support by Cheer Xiao.
+.br
+Mustache templating support by José Bollo.
+.SH LICENSE
+The dhcpd-pools uses FreeBSD License, uthash uses BSD license, the mustache
+uses Apache License, and the gnulib modules are mostly, but not entirely,
+GPL.
+.SH "REPORTING BUGS"
+Report bugs to
+.MT @PACKAGE_BUGREPORT@
+@PACKAGE_MAINTAINER@
+.ME
+.br
+.UR @PACKAGE_URL@
+Home page
+.UE
+.SH "SEE ALSO"
+.BR dhcpd.leases (5),
+.BR dhcpd.conf (5),
+.BR chmod (1),
+.UR https://mustache.github.io/
+.UE

missing

@@ -1,367 +0,0 @@
-#! /bin/sh
-# Common stub for a few missing GNU programs while installing.
-
-scriptversion=2006-05-10.23
-
-# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006
-#   Free Software Foundation, Inc.
-# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-if test $# -eq 0; then
-  echo 1>&2 "Try \`$0 --help' for more information"
-  exit 1
-fi
-
-run=:
-sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
-sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
-
-# In the cases where this matters, `missing' is being run in the
-# srcdir already.
-if test -f configure.ac; then
-  configure_ac=configure.ac
-else
-  configure_ac=configure.in
-fi
-
-msg="missing on your system"
-
-case $1 in
---run)
-  # Try to run requested program, and just exit if it succeeds.
-  run=
-  shift
-  "$@" && exit 0
-  # Exit code 63 means version mismatch.  This often happens
-  # when the user try to use an ancient version of a tool on
-  # a file that requires a minimum version.  In this case we
-  # we should proceed has if the program had been absent, or
-  # if --run hadn't been passed.
-  if test $? = 63; then
-    run=:
-    msg="probably too old"
-  fi
-  ;;
-
-  -h|--h|--he|--hel|--help)
-    echo "\
-$0 [OPTION]... PROGRAM [ARGUMENT]...
-
-Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
-error status if there is no known handling for PROGRAM.
-
-Options:
-  -h, --help      display this help and exit
-  -v, --version   output version information and exit
-  --run           try to run the given command, and emulate it if it fails
-
-Supported PROGRAM values:
-  aclocal      touch file \`aclocal.m4'
-  autoconf     touch file \`configure'
-  autoheader   touch file \`config.h.in'
-  autom4te     touch the output file, or create a stub one
-  automake     touch all \`Makefile.in' files
-  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
-  flex         create \`lex.yy.c', if possible, from existing .c
-  help2man     touch the output file
-  lex          create \`lex.yy.c', if possible, from existing .c
-  makeinfo     touch the output file
-  tar          try tar, gnutar, gtar, then tar without non-portable flags
-  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]
-
-Send bug reports to <bug-automake@gnu.org>."
-    exit $?
-    ;;
-
-  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
-    echo "missing $scriptversion (GNU Automake)"
-    exit $?
-    ;;
-
-  -*)
-    echo 1>&2 "$0: Unknown \`$1' option"
-    echo 1>&2 "Try \`$0 --help' for more information"
-    exit 1
-    ;;
-
-esac
-
-# Now exit if we have it, but it failed.  Also exit now if we
-# don't have it and --version was passed (most likely to detect
-# the program).
-case $1 in
-  lex|yacc)
-    # Not GNU programs, they don't have --version.
-    ;;
-
-  tar)
-    if test -n "$run"; then
-       echo 1>&2 "ERROR: \`tar' requires --run"
-       exit 1
-    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
-       exit 1
-    fi
-    ;;
-
-  *)
-    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
-       # We have it, but it failed.
-       exit 1
-    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
-       # Could not run --version or --help.  This is probably someone
-       # running `$TOOL --version' or `$TOOL --help' to check whether
-       # $TOOL exists and not knowing $TOOL uses missing.
-       exit 1
-    fi
-    ;;
-esac
-
-# If it does not exist, or fails to run (possibly an outdated version),
-# try to emulate it.
-case $1 in
-  aclocal*)
-    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
-         to install the \`Automake' and \`Perl' packages.  Grab them from
-         any GNU archive site."
-    touch aclocal.m4
-    ;;
-
-  autoconf)
-    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`${configure_ac}'.  You might want to install the
-         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
-         archive site."
-    touch configure
-    ;;
-
-  autoheader)
-    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
-         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
-         from any GNU archive site."
-    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
-    test -z "$files" && files="config.h"
-    touch_files=
-    for f in $files; do
-      case $f in
-      *:*) touch_files="$touch_files "`echo "$f" |
-				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
-      *) touch_files="$touch_files $f.in";;
-      esac
-    done
-    touch $touch_files
-    ;;
-
-  automake*)
-    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
-         You might want to install the \`Automake' and \`Perl' packages.
-         Grab them from any GNU archive site."
-    find . -type f -name Makefile.am -print |
-	   sed 's/\.am$/.in/' |
-	   while read f; do touch "$f"; done
-    ;;
-
-  autom4te)
-    echo 1>&2 "\
-WARNING: \`$1' is needed, but is $msg.
-         You might have modified some files without having the
-         proper tools for further handling them.
-         You can get \`$1' as part of \`Autoconf' from any GNU
-         archive site."
-
-    file=`echo "$*" | sed -n "$sed_output"`
-    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
-    if test -f "$file"; then
-	touch $file
-    else
-	test -z "$file" || exec >$file
-	echo "#! /bin/sh"
-	echo "# Created by GNU Automake missing as a replacement of"
-	echo "#  $ $@"
-	echo "exit 0"
-	chmod +x $file
-	exit 1
-    fi
-    ;;
-
-  bison|yacc)
-    echo 1>&2 "\
-WARNING: \`$1' $msg.  You should only need it if
-         you modified a \`.y' file.  You may need the \`Bison' package
-         in order for those modifications to take effect.  You can get
-         \`Bison' from any GNU archive site."
-    rm -f y.tab.c y.tab.h
-    if test $# -ne 1; then
-        eval LASTARG="\${$#}"
-	case $LASTARG in
-	*.y)
-	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
-	    if test -f "$SRCFILE"; then
-	         cp "$SRCFILE" y.tab.c
-	    fi
-	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
-	    if test -f "$SRCFILE"; then
-	         cp "$SRCFILE" y.tab.h
-	    fi
-	  ;;
-	esac
-    fi
-    if test ! -f y.tab.h; then
-	echo >y.tab.h
-    fi
-    if test ! -f y.tab.c; then
-	echo 'main() { return 0; }' >y.tab.c
-    fi
-    ;;
-
-  lex|flex)
-    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified a \`.l' file.  You may need the \`Flex' package
-         in order for those modifications to take effect.  You can get
-         \`Flex' from any GNU archive site."
-    rm -f lex.yy.c
-    if test $# -ne 1; then
-        eval LASTARG="\${$#}"
-	case $LASTARG in
-	*.l)
-	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
-	    if test -f "$SRCFILE"; then
-	         cp "$SRCFILE" lex.yy.c
-	    fi
-	  ;;
-	esac
-    fi
-    if test ! -f lex.yy.c; then
-	echo 'main() { return 0; }' >lex.yy.c
-    fi
-    ;;
-
-  help2man)
-    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-	 you modified a dependency of a manual page.  You may need the
-	 \`Help2man' package in order for those modifications to take
-	 effect.  You can get \`Help2man' from any GNU archive site."
-
-    file=`echo "$*" | sed -n "$sed_output"`
-    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
-    if test -f "$file"; then
-	touch $file
-    else
-	test -z "$file" || exec >$file
-	echo ".ab help2man is required to generate this page"
-	exit 1
-    fi
-    ;;
-
-  makeinfo)
-    echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified a \`.texi' or \`.texinfo' file, or any other file
-         indirectly affecting the aspect of the manual.  The spurious
-         call might also be the consequence of using a buggy \`make' (AIX,
-         DU, IRIX).  You might want to install the \`Texinfo' package or
-         the \`GNU make' package.  Grab either from any GNU archive site."
-    # The file to touch is that specified with -o ...
-    file=`echo "$*" | sed -n "$sed_output"`
-    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
-    if test -z "$file"; then
-      # ... or it is the one specified with @setfilename ...
-      infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
-      file=`sed -n '
-	/^@setfilename/{
-	  s/.* \([^ ]*\) *$/\1/
-	  p
-	  q
-	}' $infile`
-      # ... or it is derived from the source name (dir/f.texi becomes f.info)
-      test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
-    fi
-    # If the file does not exist, the user really needs makeinfo;
-    # let's fail without touching anything.
-    test -f $file || exit 1
-    touch $file
-    ;;
-
-  tar)
-    shift
-
-    # We have already tried tar in the generic part.
-    # Look for gnutar/gtar before invocation to avoid ugly error
-    # messages.
-    if (gnutar --version > /dev/null 2>&1); then
-       gnutar "$@" && exit 0
-    fi
-    if (gtar --version > /dev/null 2>&1); then
-       gtar "$@" && exit 0
-    fi
-    firstarg="$1"
-    if shift; then
-	case $firstarg in
-	*o*)
-	    firstarg=`echo "$firstarg" | sed s/o//`
-	    tar "$firstarg" "$@" && exit 0
-	    ;;
-	esac
-	case $firstarg in
-	*h*)
-	    firstarg=`echo "$firstarg" | sed s/h//`
-	    tar "$firstarg" "$@" && exit 0
-	    ;;
-	esac
-    fi
-
-    echo 1>&2 "\
-WARNING: I can't seem to be able to run \`tar' with the given arguments.
-         You may want to install GNU tar or Free paxutils, or check the
-         command line arguments."
-    exit 1
-    ;;
-
-  *)
-    echo 1>&2 "\
-WARNING: \`$1' is needed, and is $msg.
-         You might have modified some files without having the
-         proper tools for further handling them.  Check the \`README' file,
-         it often tells you about the needed prerequisites for installing
-         this package.  You may also peek at any GNU archive site, in case
-         some other package would contain this missing \`$1' program."
-    exit 1
-    ;;
-esac
-
-exit 0
-
-# Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-end: "$"
-# End:

mkinstalldirs

@@ -1,161 +0,0 @@
-#! /bin/sh
-# mkinstalldirs --- make directory hierarchy
-
-scriptversion=2006-05-11.19
-
-# Original author: Noah Friedman <friedman@prep.ai.mit.edu>
-# Created: 1993-05-16
-# Public domain.
-#
-# This file is maintained in Automake, please report
-# bugs to <bug-automake@gnu.org> or send patches to
-# <automake-patches@gnu.org>.
-
-nl='
-'
-IFS=" ""	$nl"
-errstatus=0
-dirmode=
-
-usage="\
-Usage: mkinstalldirs [-h] [--help] [--version] [-m MODE] DIR ...
-
-Create each directory DIR (with mode MODE, if specified), including all
-leading file name components.
-
-Report bugs to <bug-automake@gnu.org>."
-
-# process command line arguments
-while test $# -gt 0 ; do
-  case $1 in
-    -h | --help | --h*)         # -h for help
-      echo "$usage"
-      exit $?
-      ;;
-    -m)                         # -m PERM arg
-      shift
-      test $# -eq 0 && { echo "$usage" 1>&2; exit 1; }
-      dirmode=$1
-      shift
-      ;;
-    --version)
-      echo "$0 $scriptversion"
-      exit $?
-      ;;
-    --)                         # stop option processing
-      shift
-      break
-      ;;
-    -*)                         # unknown option
-      echo "$usage" 1>&2
-      exit 1
-      ;;
-    *)                          # first non-opt arg
-      break
-      ;;
-  esac
-done
-
-for file
-do
-  if test -d "$file"; then
-    shift
-  else
-    break
-  fi
-done
-
-case $# in
-  0) exit 0 ;;
-esac
-
-# Solaris 8's mkdir -p isn't thread-safe.  If you mkdir -p a/b and
-# mkdir -p a/c at the same time, both will detect that a is missing,
-# one will create a, then the other will try to create a and die with
-# a "File exists" error.  This is a problem when calling mkinstalldirs
-# from a parallel make.  We use --version in the probe to restrict
-# ourselves to GNU mkdir, which is thread-safe.
-case $dirmode in
-  '')
-    if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
-      echo "mkdir -p -- $*"
-      exec mkdir -p -- "$@"
-    else
-      # On NextStep and OpenStep, the `mkdir' command does not
-      # recognize any option.  It will interpret all options as
-      # directories to create, and then abort because `.' already
-      # exists.
-      test -d ./-p && rmdir ./-p
-      test -d ./--version && rmdir ./--version
-    fi
-    ;;
-  *)
-    if mkdir -m "$dirmode" -p --version . >/dev/null 2>&1 &&
-       test ! -d ./--version; then
-      echo "mkdir -m $dirmode -p -- $*"
-      exec mkdir -m "$dirmode" -p -- "$@"
-    else
-      # Clean up after NextStep and OpenStep mkdir.
-      for d in ./-m ./-p ./--version "./$dirmode";
-      do
-        test -d $d && rmdir $d
-      done
-    fi
-    ;;
-esac
-
-for file
-do
-  case $file in
-    /*) pathcomp=/ ;;
-    *)  pathcomp= ;;
-  esac
-  oIFS=$IFS
-  IFS=/
-  set fnord $file
-  shift
-  IFS=$oIFS
-
-  for d
-  do
-    test "x$d" = x && continue
-
-    pathcomp=$pathcomp$d
-    case $pathcomp in
-      -*) pathcomp=./$pathcomp ;;
-    esac
-
-    if test ! -d "$pathcomp"; then
-      echo "mkdir $pathcomp"
-
-      mkdir "$pathcomp" || lasterr=$?
-
-      if test ! -d "$pathcomp"; then
-	errstatus=$lasterr
-      else
-	if test ! -z "$dirmode"; then
-	  echo "chmod $dirmode $pathcomp"
-	  lasterr=
-	  chmod "$dirmode" "$pathcomp" || lasterr=$?
-
-	  if test ! -z "$lasterr"; then
-	    errstatus=$lasterr
-	  fi
-	fi
-      fi
-    fi
-
-    pathcomp=$pathcomp/
-  done
-done
-
-exit $errstatus
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-end: "$"
-# End:

project.doap

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rdf:RDF xml:lang="en" xmlns="http://usefulinc.com/ns/doap#"
+xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
+xmlns:foaf="http://xmlns.com/foaf/0.1/">
+  <Project rdf:about="https://dhcpd-pools.sourceforge.net/">
+    <name>dhcpd-pools</name>
+    <homepage rdf:resource="https://dhcpd-pools.sourceforge.net/" />
+    <shortdesc>This is dhcpd-pools ISC dhcp shared network and pool
+    range usage analysis tool.</shortdesc>
+    <description>Purpose of command is to count usage ratio of each
+    IP range and shared network pool which ISC dhcpd is in control
+    of. Program is written C. Design goal is to get analysis done
+    quickly where there is lots of data. On cheap laptop the speed
+    of analysis is more than 100k leases per second. Number of
+    ranges, or shared networks, does not make any significant
+    difference in getting analysis done.</description>
+    <mailing-list rdf:resource="https://lists.sourceforge.net/lists/listinfo/dhcpd-pools-announce" />
+    <download-page rdf:resource="https://sourceforge.net/projects/dhcpd-pools/files/" />
+    <programming-language>C</programming-language>
+    <repository>
+      <GitRepository>
+        <location rdf:resource="git://git.code.sf.net/p/dhcpd-pools/code" />
+        <browse rdf:resource="https://sourceforge.net/p/dhcpd-pools/code/ci/master/tree/" />
+      </GitRepository>
+    </repository>
+    <License>
+      <rdfs:label>BSD 2-Clause license</rdfs:label>
+      <rdfs:seeAlso rdf:resource="https://sourceforge.net/p/dhcpd-pools/code/ci/master/tree/COPYING?format=raw" />
+    </License>
+    <maintainer>
+      <foaf:Person>
+        <foaf:name>Sami Kerola</foaf:name>
+        <foaf:mbox rdf:resource="mailto:kerolasa@iki.fi" />
+      </foaf:Person>
+    </maintainer>
+  </Project>
+</rdf:RDF>

samples/Makemodule.am

@@ -0,0 +1,5 @@
+dist_doc_DATA = \
+	samples/dhcpd.conf \
+	samples/dhcpd.leases \
+	samples/mustach.template \
+	samples/prometheus.template

samples/dhcpd.conf

@@ -0,0 +1,31 @@
+shared-network example1 {
+	subnet 10.0.0.0  netmask 255.255.255.0 {
+		pool {
+			range 10.0.0.1 10.0.0.20;
+		}
+	}
+	subnet 10.1.0.0  netmask 255.255.255.0 {
+		pool {
+			range 10.1.0.1 10.1.0.20;
+		}
+	}
+}
+
+shared-network example2 {
+	subnet 10.2.0.0  netmask 255.255.255.0 {
+		pool {
+			range 10.2.0.1 10.2.0.20;
+		}
+	}
+	subnet 10.3.0.0  netmask 255.255.255.0 {
+		pool {
+			range 10.3.0.1 10.3.0.20;
+		}
+	}
+}
+
+subnet 10.4.0.0  netmask 255.255.255.0 {
+	pool {
+		range 10.4.0.1 10.4.0.20;
+	}
+}

samples/dhcpd.leases

@@ -0,0 +1,210 @@
+lease 10.0.0.0 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:00;
+}
+lease 10.0.0.1 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:01;
+}
+lease 10.0.0.2 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:02;
+}
+lease 10.0.0.3 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:03;
+}
+lease 10.0.0.4 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:04;
+}
+lease 10.0.0.5 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:05;
+}
+lease 10.0.0.6 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:06;
+}
+lease 10.0.0.7 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:07;
+}
+lease 10.0.0.8 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:08;
+}
+lease 10.0.0.9 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:09;
+}
+lease 10.0.0.10 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:10;
+}
+lease 10.0.0.11 {
+  binding state active;
+  hardware ethernet 00:00:00:00:00:11;
+}
+lease 10.0.0.12 {
+  binding state backup;
+  hardware ethernet 00:00:00:00:00:12;
+}
+
+
+lease 10.1.0.0 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:00;
+}
+lease 10.1.0.1 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:01;
+}
+lease 10.1.0.2 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:02;
+}
+lease 10.1.0.3 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:03;
+}
+lease 10.1.0.4 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:04;
+}
+lease 10.1.0.5 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:05;
+}
+lease 10.1.0.6 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:06;
+}
+lease 10.1.0.7 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:07;
+}
+lease 10.1.0.8 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:08;
+}
+lease 10.1.0.9 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:09;
+}
+lease 10.1.0.10 {
+  binding state active;
+  hardware ethernet 00:00:00:00:01:10;
+}
+
+
+lease 10.2.0.0 {
+  binding state active;
+  hardware ethernet 00:00:00:00:02:00;
+}
+lease 10.2.0.1 {
+  binding state active;
+  hardware ethernet 00:00:00:00:02:01;
+}
+lease 10.2.0.2 {
+  binding state active;
+  hardware ethernet 00:00:00:00:02:02;
+}
+lease 10.2.0.3 {
+  binding state active;
+  hardware ethernet 00:00:00:00:02:03;
+}
+lease 10.2.0.4 {
+  binding state active;
+  hardware ethernet 00:00:00:00:02:04;
+}
+lease 10.2.0.5 {
+  binding state active;
+  hardware ethernet 00:00:00:00:02:05;
+}
+lease 10.2.0.6 {
+  binding state active;
+  hardware ethernet 00:00:00:00:02:06;
+}
+lease 10.2.0.7 {
+  binding state active;
+  hardware ethernet 00:00:00:00:02:07;
+}
+lease 10.2.0.8 {
+  binding state active;
+  hardware ethernet 00:00:00:00:02:08;
+}
+
+lease 10.3.0.0 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:00;
+}
+lease 10.3.0.1 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:01;
+}
+lease 10.3.0.2 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:02;
+}
+lease 10.3.0.3 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:03;
+}
+lease 10.3.0.4 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:04;
+}
+lease 10.3.0.5 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:05;
+}
+lease 10.3.0.6 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:06;
+}
+lease 10.3.0.7 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:07;
+}
+lease 10.3.0.8 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:08;
+}
+lease 10.3.0.9 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:09;
+}
+lease 10.3.0.9 {
+  binding state active;
+  hardware ethernet 00:00:00:00:03:09;
+}
+
+lease 10.4.0.0 {
+  binding state active;
+  hardware ethernet 00:00:00:00:04:00;
+}
+lease 10.4.0.1 {
+  binding state active;
+  hardware ethernet 00:00:00:00:04:01;
+}
+lease 10.4.0.2 {
+  binding state active;
+  hardware ethernet 00:00:00:00:04:02;
+}
+lease 10.4.0.3 {
+  binding state active;
+  hardware ethernet 00:00:00:00:04:03;
+}
+lease 10.4.0.4 {
+  binding state active;
+  hardware ethernet 00:00:00:00:04:04;
+}
+lease 10.4.0.5 {
+  binding state active;
+  hardware ethernet 00:00:00:00:04:05;
+}
+lease 10.4.0.6 {
+  binding state backup;
+  hardware ethernet 00:00:00:00:04:06;
+}

samples/mustach.template

@@ -0,0 +1,76 @@
+Ethernets:{{#active_lease}}
+    macaddress: {{macaddress}} ip: {{ip}}{{/active_lease}}
+
+Subnets:{{#subnets}}
+    location: {{location}}
+    range: {{range}}
+    first_ip: {{first_ip}}
+    last_ip: {{last_ip}}
+    used: {{used}}
+    touched: {{touched}}
+    defined: {{defined}}
+    free: {{free}}
+    percent: {{percent}}
+    touch_count: {{touch_count}}
+    touch_percent: {{touch_percent}}
+    backup_count: {{backup_count}}
+    backup_percent: {{backup_percent}}
+    status: {{status}}
+    gettimeofday: {{gettimeofday}}
+    lease_file_epoch_mtime: {{lease_file_epoch_mtime}}
+{{/subnets}}
+
+Shared-networks:{{#shared-networks}}
+    location: {{location}}
+    defined: {{defined}}
+    used: {{used}}
+    touched: {{touched}}
+    free: {{free}}
+    percent: {{percent}}
+    touch_count: {{touch_count}}
+    touch_percent: {{touch_percent}}
+    backup_count: {{backup_count}}
+    backup_percent: {{backup_percent}}
+    status: {{status}}
+    gettimeofday: {{gettimeofday}}
+    lease_file_epoch_mtime: {{lease_file_epoch_mtime}}
+{{/shared-networks}}
+
+Summary:{{#summary}}
+    location: {{location}}
+    defined: {{defined}}
+    used: {{used}}
+    touched: {{touched}}
+    free: {{free}}
+    percent: {{percent}}
+    touch_count: {{touch_count}}
+    touch_percent: {{touch_percent}}
+    backup_count: {{backup_count}}
+    backup_percent: {{backup_percent}}
+    status: {{status}}
+    gettimeofday: {{gettimeofday}}
+    lease_file_epoch_mtime: {{lease_file_epoch_mtime}}
+{{/summary}}
+
+localtime: {{localtime}}
+number_of_ranges: {{number_of_ranges}}
+number_of_shared_networks: {{number_of_shared_networks}}
+version: {{version}}
+
+conf_file_path: {{conf_file_path}}
+conf_file_local_mtime: {{conf_file_local_mtime}}
+conf_file_epoch_mtime: {{conf_file_epoch_mtime}}
+
+lease_file_path: {{lease_file_path}}
+lease_file_local_mtime: {{lease_file_local_mtime}}
+lease_file_epoch_mtime: {{lease_file_epoch_mtime}}
+
+template_file_path: {{template_file_path}}
+template_file_local_mtime: {{template_file_local_mtime}}
+template_file_epoch_mtime: {{template_file_epoch_mtime}}
+
+number_of_ranges_warning: {{number_of_ranges_warning}}
+number_of_ranges_critical: {{number_of_ranges_critical}}
+number_of_shared_networks: {{number_of_shared_networks}}
+number_of_shared_networks_warning: {{number_of_shared_networks_warning}}
+number_of_shared_networks_critical: {{number_of_shared_networks_critical}}

samples/prometheus.template

@@ -0,0 +1,11 @@
+# This mustach template can be used as Prometheus text file.
+# https://prometheus.io/
+# HELP dhcpd_pools ISC dhcpd statistics
+# TYPE dhcpd_pools gauge
+{{#subnets}}dhcpd_pools{location="{{location}}",range="{{first_ip}}",used="1"} {{used}} {{gettimeofday}}000
+dhcpd_pools{location="{{location}}",range="{{first_ip}}",touched="1"} {{touched}} {{gettimeofday}}000
+dhcpd_pools{location="{{location}}",range="{{first_ip}}",defined="1"} {{defined}} {{gettimeofday}}000
+dhcpd_pools{location="{{location}}",range="{{first_ip}}",free="1"} {{free}} {{gettimeofday}}000
+dhcpd_pools{location="{{location}}",range="{{first_ip}}",touch_count="1"} {{touch_count}} {{gettimeofday}}000
+dhcpd_pools{location="{{location}}",range="{{first_ip}}",status="1"} {{status}} {{gettimeofday}}000
+{{/subnets}}

snippet/.gitignore

@@ -0,0 +1,5 @@
+/_Noreturn.h
+/arg-nonnull.h
+/c++defs.h
+/unused-parameter.h
+/warn-on-use.h

src/.indent.pro

@@ -0,0 +1,16 @@
+-linux
+-TFILE
+-Tconf_t
+-Tipaddr_t
+-Tleases_t
+-Toff_t
+-Trange_t
+-Tsize_t
+-Ttime_t
+-Tuintmax_t
+--blank-lines-after-declarations
+--format-all-comments
+--line-length100
+--preprocessor-indentation1
+--start-left-side-of-comments
+--swallow-optional-blank-lines

src/Makefile.am

@@ -1,8 +0,0 @@
-## Makefile.am -- Process this file with automake to produce Makefile.in
-
-bin_PROGRAMS = dhcpd-pools
-AC_PROG_RANLIB = resolv
-
-dhcpd_pools_SOURCES = dhcpd-pools.h defaults.h dhcpd-pools.c analyze.c getdata.c getopt1.c getopt.c other.c sort.c output.c getopt.h
-
-INCLUDES = -I. -I..

src/Makefile.in

@@ -1,460 +0,0 @@
-# Makefile.in generated by automake 1.11.1 from Makefile.am.
-# @configure_input@
-
-# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
-# Inc.
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
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-
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-am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
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-NORMAL_INSTALL = :
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-PRE_UNINSTALL = :
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-am__aclocal_m4_deps = $(top_srcdir)/configure.ac
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-	$(ACLOCAL_M4)
-mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
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-dhcpd_pools_OBJECTS = $(am_dhcpd_pools_OBJECTS)
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-	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
-	     $$unique
-
-GTAGS:
-	here=`$(am__cd) $(top_builddir) && pwd` \
-	  && $(am__cd) $(top_srcdir) \
-	  && gtags -i $(GTAGS_ARGS) "$$here"
-
-distclean-tags:
-	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
-
-distdir: $(DISTFILES)
-	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	list='$(DISTFILES)'; \
-	  dist_files=`for file in $$list; do echo $$file; done | \
-	  sed -e "s|^$$srcdirstrip/||;t" \
-	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
-	case $$dist_files in \
-	  */*) $(MKDIR_P) `echo "$$dist_files" | \
-			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
-			   sort -u` ;; \
-	esac; \
-	for file in $$dist_files; do \
-	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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-	    if test -d "$(distdir)/$$file"; then \
-	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
-	    fi; \
-	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
-	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
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-	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
-	  else \
-	    test -f "$(distdir)/$$file" \
-	    || cp -p $$d/$$file "$(distdir)/$$file" \
-	    || exit 1; \
-	  fi; \
-	done
-check-am: all-am
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-installdirs:
-	for dir in "$(DESTDIR)$(bindir)"; do \
-	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
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-	  `test -z '$(STRIP)' || \
-	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
-mostlyclean-generic:
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-
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-	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
-	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
-
-maintainer-clean-generic:
-	@echo "This command is intended for maintainers to use"
-	@echo "it deletes files that may require special tools to rebuild."
-clean: clean-am
-
-clean-am: clean-binPROGRAMS clean-generic mostlyclean-am
-
-distclean: distclean-am
-	-rm -rf ./$(DEPDIR)
-	-rm -f Makefile
-distclean-am: clean-am distclean-compile distclean-generic \
-	distclean-tags
-
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-	-rm -rf ./$(DEPDIR)
-	-rm -f Makefile
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-	clean-generic ctags distclean distclean-compile \
-	distclean-generic distclean-tags distdir dvi dvi-am html \
-	html-am info info-am install install-am install-binPROGRAMS \
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-	uninstall-am uninstall-binPROGRAMS
-
-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:

src/Makemodule.am

@@ -0,0 +1,24 @@
+## Makefile.am -- Process this file with automake to produce Makefile.in
+
+bin_PROGRAMS = dhcpd-pools
+AC_PROG_RANLIB = resolv
+AM_CPPFLAGS = -I$(top_srcdir)/src -I$(top_srcdir)/lib -I$(top_builddir)/lib
+
+dhcpd_pools_LDADD = $(top_builddir)/lib/libdhcpd_pools.la $(MATH_LIBS)
+
+dhcpd_pools_SOURCES = \
+	src/analyze.c \
+	src/dhcpd-pools.c \
+	src/dhcpd-pools.h \
+	src/getdata.c \
+	src/hash.c \
+	src/other.c \
+	src/output.c \
+	src/sort.c
+
+if ENABLE_MUSTACH
+dhcpd_pools_SOURCES += \
+	src/mustach-dhcpd-pools.c \
+	src/mustach.c \
+	src/mustach.h
+endif

src/analyze.c

@@ -1,161 +1,106 @@
 /*
-** Copyright (C) 2006- Sami Kerola <kerolasa@iki.fi>
+ * The dhcpd-pools has BSD 2-clause license which also known as "Simplified
-**  
+ * BSD License" or "FreeBSD License".
-** This program is free software; you can redistribute it and/or modify
+ *
-** it under the terms of the GNU General Public License as published by
+ * Copyright 2006- Sami Kerola. All rights reserved.
-** the Free Software Foundation; either version 2 of the License, or
+ *
-** (at your option) any later version.
+ * Redistribution and use in source and binary forms, with or without
-** 
+ * modification, are permitted provided that the following conditions are
-** This program is distributed in the hope that it will be useful,
+ * met:
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    1. Redistributions of source code must retain the above copyright
-** GNU General Public License for more details.
+ *       notice, this list of conditions and the following disclaimer.
-** 
+ *
-** You should have received a copy of the GNU General Public License
+ *    2. Redistributions in binary form must reproduce the above copyright
-** along with this program; if not, write to the Free Software 
+ *       notice, this list of conditions and the following disclaimer in the
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *       documentation and/or other materials provided with the
-*/
+ *       distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of Sami Kerola.
+ */
+
+/*! \file analyze.c
+ * \brief Data analysis functions.
+ */
 
-#ifdef HAVE_CONFIG_H
 #include <config.h>
-#endif
 
+#include <stddef.h>
+#include <stdint.h>
 #include <stdlib.h>
-#include <stdio.h>
 
 #include "dhcpd-pools.h"
 
-/* Clean up data */
+/*! \brief Prepare data for analysis. The function will sort leases and
-int prepare_data(void)
+ * ranges. */
+void prepare_data(struct conf_t *state)
 {
-	unsigned long int i, j, k;
-
 	/* Sort leases */
-	qsort(leases, (size_t) num_leases, sizeof(long int), &intcomp);
+	HASH_SORT(state->leases, leasecomp);
-
-	/* Get rid of lease dublicates */
-	for (k = j = i = 0; i < num_leases; i++) {
-		if (j != leases[i]) {
-			leases[k] = leases[i];
-			j = leases[i];
-			k++;
-		}
-	}
-	num_leases = k;
-
-	/* Delete touched IPs that are in use. */
-	j = 0;
-	for (i = 0; i < num_touches; i++) {
-		if (bsearch
-		    (&touches[i], leases, (size_t) num_leases,
-		     sizeof(long int), &intcomp) == NULL) {
-			touches[j] = touches[i];
-			j++;
-		}
-	}
-	num_touches = j;
-	qsort(touches, (size_t) num_touches, sizeof(long int), &intcomp);
-
 	/* Sort ranges */
-	qsort(ranges, (size_t) num_ranges, sizeof(struct range_t),
+	qsort(state->ranges, state->num_ranges, sizeof(struct range_t), &rangecomp);
-	      &rangecomp);
-
-	/* Sort backups */
-	if (num_backups > 0) {
-		qsort(backups, (size_t) num_backups, sizeof(long int),
-		      &intcomp);
-	}
-
-	return 0;
 }
 
-/* Join leases and ranges into couter structs */
+/*!\brief Perform counting.  Join leases with ranges, and update range and
-int do_counting(void)
+ * shared network counters.  */
+void do_counting(struct conf_t *state)
 {
-	struct range_t *range_p;
+	struct range_t *restrict range_p = state->ranges;
-	unsigned int i, j, k, m, block_size;
+	const struct leases_t *restrict l = state->leases;
-
+	unsigned long i;
-	i = j = m = 0;
+	double block_size;
-	range_p = ranges;
 
 	/* Walk through ranges */
-	for (k = 0; k < num_ranges; k++) {
+	for (i = 0; i < state->num_ranges; i++, range_p++) {
-		/* Count IPs in use */
+		while (l != NULL && ipcomp(&range_p->first_ip, &l->ip) < 0)
-		for (; range_p->last_ip > leases[i]
+			l = l->hh.prev;	/* rewind */
-		     && (unsigned long) i < num_leases; i++) {
+		if (l == NULL)
-			if (range_p->first_ip > leases[i]) {
+			l = state->leases;
-				continue;
+		for (; l != NULL && ipcomp(&l->ip, &range_p->last_ip) <= 0; l = l->hh.next) {
-			}
+			if (unlikely(ipcomp(&l->ip, &range_p->first_ip) < 0))
-			/* IP with in range */
+				continue;	/* cannot happen? */
-			range_p->count++;
+			/* IP in range */
-			if (range_p->shared_net) {
+			switch (l->type) {
-				range_p->shared_net->used++;
+			case FREE:
-			}
+				range_p->touched++;
-		}
+				break;
-
+			case ACTIVE:
-		/* Count touched IPs */
+				range_p->count++;
-		for (; range_p->last_ip > touches[j]
+				break;
-		     && (unsigned long) j < num_touches; j++) {
+			case BACKUP:
-			if (range_p->first_ip > touches[j]) {
-				continue;
-			}
-			/* IP with in range */
-			range_p->touched++;
-			if (range_p->shared_net) {
-				range_p->shared_net->touched++;
-			}
-		}
-
-		/* Count backup IPs */
-		if (num_backups > 0) {
-			for (; range_p->last_ip > backups[m]
-			     && (unsigned long) m < num_touches; m++) {
-				if (range_p->first_ip > touches[m]) {
-					continue;
-				}
-				/* IP with in range */
 				range_p->backups++;
-				if (range_p->shared_net) {
+				break;
-					range_p->shared_net->backups++;
+			default:
-				}
+				abort();
 			}
 		}
-
+		/* Size of range size. */
-		/* Size of range, shared net & all networks */
+		block_size = get_range_size(range_p);
-		block_size =
+		/* Count together ranges within shared network block. */
-		    (unsigned int) (range_p->last_ip - range_p->first_ip -
+		range_p->shared_net->available += block_size;
-				    1);
+		range_p->shared_net->used += range_p->count;
-		if (range_p->shared_net) {
+		range_p->shared_net->touched += range_p->touched;
-			range_p->shared_net->available += block_size;
+		range_p->shared_net->backups += range_p->backups;
+		/* When shared network is not 'all networks' add it as well. */
+		if (range_p->shared_net != state->shared_net_root) {
+			state->shared_net_root->available += block_size;
+			state->shared_net_root->used += range_p->count;
+			state->shared_net_root->touched += range_p->touched;
+			state->shared_net_root->backups += range_p->backups;
 		}
-
-		/* Reverse so that not even a one IP will be missed. */
-		if (i) {
-			i--;
-		}
-		if (j) {
-			j--;
-		}
-
-		range_p++;
 	}
-
-	/* During count of other shared networks default network and
-	 * all networks got mixed to gether semantically. This fixes
-	 * the problem, but is not elegant. TODO: fix semantics of all
-	 * and default share_network. */
-	shared_networks->available = 0;
-	shared_networks->used = 0;
-	shared_networks->touched = 0;
-	range_p = ranges;
-	for (k = 0; k < num_ranges; k++) {
-		shared_networks->available +=
-		    range_p->last_ip - range_p->first_ip - 1;
-		shared_networks->used += range_p->count;
-		shared_networks->touched += range_p->touched;
-		shared_networks->backups += range_p->backups;
-		range_p++;
-	}
-
-	return 0;
 }

src/defaults.h

@@ -1,37 +0,0 @@
-/*
-** Copyright (C) 2006 Sami Kerola <kerolasa@iki.fi>
-**  
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
-** 
-** This program is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-** GNU General Public License for more details.
-** 
-** You should have received a copy of the GNU General Public License
-** along with this program; if not, write to the Free Software 
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-*/
-
-#ifndef DEFAULTS_H
-# define DEFAULTS_H 1
-
-/* Maximum line length in dhcpd.conf and dhcpd.leases */
-static const int MAXLEN = 1024;
-
-/* Total number of characters in all shared network names */
-static const int SHARED_NETWORKS_NAMES = 24576;
-
-/* Maximum number of shared networks */
-static const int SHARED_NETWORKS = 1024;
-
-/* Maximum number of ranges */
-static const unsigned int RANGES = 65536;
-
-/* Merge sort split size */
-static const int MIN_MERGE_SIZE = 8;
-
-#endif /* DEFAULTS_H */

src/dhcpd-pools.c

@@ -1,288 +1,368 @@
 /*
-** Copyright (C) 2006- Sami Kerola <kerolasa@iki.fi>
+ * The dhcpd-pools has BSD 2-clause license which also known as "Simplified
-**  
+ * BSD License" or "FreeBSD License".
-** This program is free software; you can redistribute it and/or modify
+ *
-** it under the terms of the GNU General Public License as published by
+ * Copyright 2006- Sami Kerola. All rights reserved.
-** the Free Software Foundation; either version 2 of the License, or
+ *
-** (at your option) any later version.
+ * Redistribution and use in source and binary forms, with or without
-** 
+ * modification, are permitted provided that the following conditions are
-** This program is distributed in the hope that it will be useful,
+ * met:
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    1. Redistributions of source code must retain the above copyright
-** GNU General Public License for more details.
+ *       notice, this list of conditions and the following disclaimer.
-** 
+ *
-** You should have received a copy of the GNU General Public License
+ *    2. Redistributions in binary form must reproduce the above copyright
-** along with this program; if not, write to the Free Software 
+ *       notice, this list of conditions and the following disclaimer in the
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *       documentation and/or other materials provided with the
-*/
+ *       distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of Sami Kerola.
+ */
+
+/*! \file dhcpd-pools.c
+ * \brief The main(), and core initialization.
+ */
 
-#ifdef HAVE_CONFIG_H
 #include <config.h>
-#endif
 
-#include <stdio.h>
+#include <errno.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#ifdef  HAVE_STDLIB_H
 #include <stdlib.h>
-#else				/* Not STDC_HEADERS */
-extern void exit();
-extern char *malloc();
-#endif				/* STDC_HEADERS */
-#ifdef  HAVE_STRING_H
 #include <string.h>
-#else
-#include <strings.h>
-#endif
 #include <getopt.h>
+#include <stdio.h>
+#include <limits.h>
+
+#include "close-stream.h"
+#include "closeout.h"
+#include "error.h"
+#include "progname.h"
+#include "quote.h"
+#include "xalloc.h"
 
 #include "dhcpd-pools.h"
-#include "defaults.h"
 
-int main(int argc, char **argv)
+/* Function pointers */
+int (*parse_ipaddr) (struct conf_t *state, const char *restrict src, union ipaddr_t *restrict dst);
+void (*copy_ipaddr) (union ipaddr_t *restrict dst, const union ipaddr_t *restrict src);
+const char *(*ntop_ipaddr) (const union ipaddr_t *ip);
+double (*get_range_size) (const struct range_t *r);
+int (*xstrstr) (struct conf_t *state, const char *restrict str);
+int (*ipcomp) (const union ipaddr_t *restrict a, const union ipaddr_t *restrict b);
+int (*leasecomp) (const struct leases_t *restrict a, const struct leases_t *restrict b);
+void (*add_lease) (struct conf_t *state, union ipaddr_t *ip, enum ltype type);
+struct leases_t *(*find_lease) (struct conf_t *state, union ipaddr_t *ip);
+
+/*! \brief An option argument parser to populate state header_limit and
+ * number_limit values.
+ */
+static int return_limit(const char c)
 {
-	int c, sorts = 0;
+	if ('0' <= c && c < '8')
-	int option_index = 0;
+		return c - '0';
-	char *tmp;
+	error(EXIT_FAILURE, 0, "return_limit: output mask %s is illegal", quote(optarg));
-	struct range_t *tmp_ranges;
+	return 0;
+}
 
-	/* Options for getopt_long */
+/*! \brief Run time initialization. Global allocations, counter
-	static struct option const long_options[] = {
+ * initializations, etc are here. */
-		{"config", required_argument, 0, (int) 'c'},
+static void prepare_memory(struct conf_t *state)
-		{"leases", required_argument, 0, (int) 'l'},
+{
-		{"format", required_argument, 0, (int) 'f'},
+	state->ranges = xmalloc(sizeof(struct range_t) * state->ranges_size);
-		{"sort", required_argument, 0, (int) 's'},
+	/* First shared network entry is all networks */
-		{"reverse", no_argument, 0, (int) 'r'},
+	state->shared_net_root = xcalloc(sizeof(struct shared_network_t), 1);
-		{"output", required_argument, 0, (int) 'o'},
+	state->shared_net_root->name = xstrdup("All networks");
-		{"limit", required_argument, 0, (int) 'L'},
+	state->shared_net_head = state->shared_net_root;
-		{"version", no_argument, 0, (int) 'v'},
+}
-		{"help", no_argument, 0, (int) 'h'},
+
-		{0, 0, 0, 0}
+/*! \brief The --skip option argument parser. */
+static void skip_arg_parse(struct conf_t *state, char *arg)
+{
+	enum {
+		OPT_ARG_OK = 0,
+		OPT_ARG_WARNING,
+		OPT_ARG_CRITICAL,
+		OPT_ARG_MINSIZE,
+		OPT_ARG_SUPPRESSED
 	};
 
-	program_name = argv[0];
+	char *const tokens[] = {
-	atexit(clean_up);
+		[OPT_ARG_OK] = "ok",
+		[OPT_ARG_WARNING] = "warning",
+		[OPT_ARG_CRITICAL] = "critical",
+		[OPT_ARG_MINSIZE] = "minsize",
+		[OPT_ARG_SUPPRESSED] = "suppressed",
+		NULL
+	};
+	char *value;
 
-	/* TODO: make either dynamic or find out max path lenght that auto config
+	while (*arg != '\0') {
-	 * provides */
+		switch (getsubopt(&arg, tokens, &value)) {
-	config.dhcpdconf_file = safe_malloc(sizeof(char) * MAXLEN);
+		case OPT_ARG_OK:
-	config.dhcpdlease_file = safe_malloc(sizeof(char) * MAXLEN);
+			state->skip_ok = 1;
-	config.output_file = safe_malloc(sizeof(char) * MAXLEN);
+			break;
+		case OPT_ARG_WARNING:
+			state->skip_warning = 1;
+			break;
+		case OPT_ARG_CRITICAL:
+			state->skip_critical = 1;
+			break;
+		case OPT_ARG_MINSIZE:
+			state->skip_minsize = 1;
+			break;
+		case OPT_ARG_SUPPRESSED:
+			state->skip_suppressed = 1;
+			break;
+		default:
+			error(EXIT_FAILURE, 0, "unknown --skip specifier: %s", value);
+		}
+	}
+}
 
-	/* Make sure string has zero lenght if there is no command line
+/*! \brief Command line options parser. */
-	 * option */
+static void parse_command_line_opts(struct conf_t *state, int argc, char **argv)
-	config.output_file[0] = '\0';
+{
+	enum {
+		OPT_SNET_ALARMS = CHAR_MAX + 1,
+		OPT_WARN,
+		OPT_CRIT,
+		OPT_MINSIZE,
+		OPT_WARN_COUNT,
+		OPT_CRIT_COUNT,
+		OPT_COLOR,
+		OPT_SKIP,
+		OPT_SET_IPV,
+		OPT_MUSTACH
+	};
 
-	/* File location defaults */
+	static struct option const long_options[] = {
-	strncpy(config.dhcpdconf_file, DHCPDCONF_FILE,
+		{"config", required_argument, NULL, 'c'},
-		(size_t) MAXLEN - 1);
+		{"leases", required_argument, NULL, 'l'},
-	strncpy(config.dhcpdlease_file, DHCPDLEASE_FILE,
+		{"color", required_argument, NULL, OPT_COLOR},
-		(size_t) MAXLEN - 1);
+		{"skip", required_argument, NULL, OPT_SKIP},
-	tmp = OUTPUT_LIMIT;
+		{"format", required_argument, NULL, 'f'},
-	config.output_limit[0] = (int) (*tmp - '0');
+		{"sort", required_argument, NULL, 's'},
-	tmp++;
+		{"reverse", no_argument, NULL, 'r'},
-	config.output_limit[1] = (int) (*tmp - '0');
+		{"output", required_argument, NULL, 'o'},
-	fullhtml = false;
+		{"limit", required_argument, NULL, 'L'},
+		{"mustach", required_argument, NULL, OPT_MUSTACH},
+		{"version", no_argument, NULL, 'v'},
+		{"help", no_argument, NULL, 'h'},
+		{"snet-alarms", no_argument, NULL, OPT_SNET_ALARMS},
+		{"warning", required_argument, NULL, OPT_WARN},
+		{"critical", required_argument, NULL, OPT_CRIT},
+		{"warn-count", required_argument, NULL, OPT_WARN_COUNT},
+		{"crit-count", required_argument, NULL, OPT_CRIT_COUNT},
+		{"minsize", required_argument, NULL, OPT_MINSIZE},
+		{"perfdata", no_argument, NULL, 'p'},
+		{"all-as-shared", no_argument, NULL, 'A'},
+		{"ip-version", required_argument, NULL, OPT_SET_IPV},
+		{NULL, 0, NULL, 0}
+	};
+	int alarming = 0;
 
-	/* Make sure some output format is selected by default */
-	strncpy(config.output_format, OUTPUT_FORMAT, (size_t) 1);
-
-	/* Default sort order is by IPs small to big */
-	config.reverse_order = false;
-
-	/* Parse command line options */
 	while (1) {
-		c = getopt_long(argc, argv, "c:l:f:o:s:rL:vh",
+		int c;
-				long_options, &option_index);
 
+		c = getopt_long(argc, argv, "c:l:f:o:s:rL:pAvh", long_options, NULL);
 		if (c == EOF)
 			break;
-
 		switch (c) {
-		case 0:
-			break;
 		case 'c':
 			/* config file */
-			if (optarg != NULL) {
+			state->dhcpdconf_file = optarg;
-				strncpy(config.dhcpdconf_file, optarg,
-					(size_t) MAXLEN - 1);
-			} else {
-				eprintf
-				    ("main: for argument configuration file parameter not set");
-				usage(EXIT_FAILURE);
-			}
 			break;
 		case 'l':
 			/* lease file */
-			if (optarg != NULL) {
+			state->dhcpdlease_file = optarg;
-				strncpy(config.dhcpdlease_file, optarg,
-					(size_t) MAXLEN - 1);
-			} else {
-				eprintf
-				    ("main: for argument lease file parameter not set");
-				usage(EXIT_FAILURE);
-			}
 			break;
 		case 'f':
 			/* Output format */
-			if (optarg != NULL) {
+			state->output_format = optarg[0];
-				strncpy(config.output_format, optarg,
-					(size_t) 1);
-			} else {
-				eprintf
-				    ("main: for argument output format parameter not set");
-				usage(EXIT_FAILURE);
-			}
 			break;
 		case 's':
-			/* Output sorting option */
+			{
-			if (optarg != NULL) {
+				/* Output sorting option */
-				sorts = strlen(optarg);
+				struct output_sort *p = state->sorts;
-				if (sorts > 5) {
+				char *ptr = optarg;
-					eprintf
+
-					    ("main: only 5 first sort orders will be used");
+				while (p && p->next)
-					strncpy(config.sort, optarg,
+					p = p->next;
-						(size_t) 5);
+				while (*ptr) {
-					sorts = 5;
+					if (state->sorts == NULL) {
-				} else {
+						state->sorts =
-					strncpy(config.sort, optarg,
+						    xcalloc(1, sizeof(struct output_sort));
-						(size_t) sorts);
+						p = state->sorts;
+					} else {
+						p->next = xcalloc(1, sizeof(struct output_sort));
+						p = p->next;
+					}
+					p->func = field_selector(*ptr++);
 				}
-			} else {
-				eprintf
-				    ("main: for argument sort order parameter not set");
-				usage(EXIT_FAILURE);
 			}
 			break;
 		case 'r':
 			/* What ever sort in reverse order */
-			config.reverse_order = true;
+			state->reverse_order = 1;
 			break;
 		case 'o':
 			/* Output file */
-			if (optarg != NULL) {
+			state->output_file = optarg;
-				strncpy(config.output_file, optarg,
-					(size_t) MAXLEN - 1);
-			} else {
-				eprintf
-				    ("main: for argument output file parameter not set");
-				usage(EXIT_FAILURE);
-			}
 			break;
 		case 'L':
 			/* Specification what will be printed */
-			if (optarg != NULL) {
+			state->header_limit = return_limit(optarg[0]);
-				if (optarg[0] >= '0' && optarg[0] < '8') {
+			state->number_limit = return_limit(optarg[1]);
-					config.output_limit[0] =
+			break;
-					    (int) optarg[0] - '0';
+		case OPT_MUSTACH:
-				} else {
+#ifdef BUILD_MUSTACH
-					eprintf
+			state->mustach_template = optarg;
-					    ("main: output mask %s illegal",
+			state->output_format = 'm';
-					     argv[optind]);
+			state->print_mac_addreses = 1;
-					usage(EXIT_FAILURE);
+#else
-				}
+			error(EXIT_FAILURE, 0, "compiled without mustach support");
-				if (optarg[1] >= '0' && optarg[1] < '8') {
+#endif
-					config.output_limit[1] =
+			break;
-					    (int) optarg[1] - '0';
+		case OPT_COLOR:
-				} else {
+			state->color_mode = parse_color_mode(optarg);
-					eprintf
+			if (state->color_mode == color_unknown)
-					    ("main: output mask %s illegal",
+				error(EXIT_FAILURE, errno, "unknown color mode: %s", quote(optarg));
-					     optarg);
+			break;
-					usage(EXIT_FAILURE);
+		case OPT_SKIP:
-				}
+			skip_arg_parse(state, optarg);
-			} else {
+			break;
-				eprintf
+		case OPT_SNET_ALARMS:
-				    ("main: for argument output mask parameter not set");
+			state->snet_alarms = 1;
-				usage(EXIT_FAILURE);
+			break;
+		case OPT_WARN:
+			alarming = 1;
+			state->warning = strtod_or_err(optarg, "illegal argument");
+			break;
+		case OPT_CRIT:
+			alarming = 1;
+			state->critical = strtod_or_err(optarg, "illegal argument");
+			break;
+		case OPT_WARN_COUNT:
+			alarming = 1;
+			state->warn_count = strtod_or_err(optarg, "illegal argument");
+			break;
+		case OPT_CRIT_COUNT:
+			alarming = 1;
+			state->crit_count = strtod_or_err(optarg, "illegal argument");
+			break;
+		case OPT_MINSIZE:
+			state->minsize = strtod_or_err(optarg, "illegal argument");
+			break;
+		case OPT_SET_IPV:
+			switch (optarg[0]) {
+			case '4':
+				set_ipv_functions(state, IPv4);
+				break;
+			case '6':
+				set_ipv_functions(state, IPv6);
+				break;
+			default:
+				error(EXIT_FAILURE, 0, "unknown --ip-version argument: %s", optarg);
 			}
 			break;
+		case 'p':
+			/* Print additional performance data in alarming mode */
+			state->perfdata = 1;
+			break;
+		case 'A':
+			/* Treat single networks as shared with network CIDR as name */
+			state->all_as_shared = 1;
+			break;
 		case 'v':
 			/* Print version */
 			print_version();
-			exit(EXIT_SUCCESS);
 		case 'h':
 			/* Print help */
 			usage(EXIT_SUCCESS);
 		default:
-			usage(EXIT_FAILURE);
+			error(EXIT_FAILURE, 0, "Try %s --help for more information.", program_name);
 		}
 	}
 
-	/* Output function selection */
+	/* Use default dhcpd.conf when user did not define anything. */
-	switch (config.output_format[0]) {
+	if (state->dhcpdconf_file == NULL)
-	case 't':
+		state->dhcpdconf_file = DHCPDCONF_FILE;
-		output_analysis = output_txt;
+	/* Use default dhcpd.leases when user did not define anything. */
-		break;
+	if (state->dhcpdlease_file == NULL)
-	case 'h':
+		state->dhcpdlease_file = DHCPDLEASE_FILE;
-		output_analysis = output_html;
+	/* Use default limits when user did not define anything. */
-		break;
+	if (state->header_limit == 8) {
-	case 'H':
+		char const *default_limit = OUTPUT_LIMIT;
-		output_analysis = output_html;
+
-		fullhtml = true;
+		state->header_limit = return_limit(default_limit[0]);
-		break;
+		state->number_limit = return_limit(default_limit[1]);
-	case 'x':
-		output_analysis = output_xml;
-		break;
-	case 'X':
-		output_analysis = output_xml;
-		break;
-	case 'c':
-		output_analysis = output_csv;
-		break;
-	case 's':
-		/* output_analysis = output_snmp; */
-		output_analysis = output_txt;
-		break;
-	default:
-		eprintf("main: unknown ouput format");
-		usage(EXIT_FAILURE);
 	}
+	/* Output format is not defined, if alarm thresholds are then it's alarming, else use the
+	 * default.  */
+	if (state->output_format == '\0') {
+		if (alarming == 1)
+			state->output_format = 'a';
+		else {
+			const char *const default_format = OUTPUT_FORMAT;
+
+			state->output_format = default_format[0];
+		}
+	}
+	if (state->output_format == 'X' || state->output_format == 'J') {
+		state->print_mac_addreses = 1;
+	}
+}
+
+/*!\brief Start of execution.  This will mostly call other functions one
+ * after another.
+ *
+ * \return Return value indicates success or fail or analysis, unless
+ * either --warning or --critical options are in use, which makes the
+ * return value in some cases to match with Nagios expectations about
+ * alarming. */
+int main(int argc, char **argv)
+{
+	struct conf_t state = {
+		.warning = ALARM_WARN,
+		.critical = ALARM_CRIT,
+		.warn_count = 0x100000000,	/* == 2^32 that is the entire IPv4 space */
+		.crit_count = 0x100000000,	/* basically turns off the count criteria */
+		.header_limit = 8,
+		.ranges_size = 64,
+		.ip_version = IPvUNKNOWN,
+		.color_mode = color_auto
+	};
+	int ret_val;
+
+	atexit(close_stdout);
+	set_program_name(argv[0]);
+	prepare_memory(&state);
+	set_ipv_functions(&state, IPvUNKNOWN);
+	parse_command_line_opts(&state, argc, argv);
 
 	/* Do the job */
-	prepare_memory();
+	parse_config(&state, 1, state.dhcpdconf_file, state.shared_net_root);
-	parse_config(true, config.dhcpdconf_file, shared_net_names,
+	parse_leases(&state);
-		     shared_net_names + strlen(shared_net_names) + 1,
+	prepare_data(&state);
-		     shared_networks);
+	do_counting(&state);
-
+	if (state.sorts != NULL)
-	if ((config.output_format[0] == 'x')
+		mergesort_ranges(&state, state.ranges, state.num_ranges, NULL, 1);
-	    || (config.output_format[0] == 'X')) {
+	if (state.reverse_order == 1)
-		printf("<dhcpstatus>\n");
+		flip_ranges(&state);
-	};
+	ret_val = output_analysis(&state);
-
+	clean_up(&state);
-	parse_leases();
+	return (ret_val);
-	prepare_data();
-	do_counting();
-	tmp_ranges = safe_malloc(sizeof(struct range_t) * num_ranges);
-	if (sorts != 0) {
-		mergesort_ranges(ranges, num_ranges, tmp_ranges);
-	}
-	if (config.reverse_order == true) {
-		flip_ranges(ranges, tmp_ranges);
-	}
-	free(tmp_ranges);
-	output_analysis();
-
-	if ((config.output_format[0] == 'x')
-	    || (config.output_format[0] == 'X')) {
-		printf("</dhcpstatus>\n");
-	};
-
-	exit(EXIT_SUCCESS);
-}
-
-/* Global allocations, counter resets etc */
-int prepare_memory()
-{
-	num_ranges = num_shared_networks = 0;
-	shared_networks =
-	    safe_malloc(sizeof(struct shared_network_t) * SHARED_NETWORKS);
-	shared_net_names =
-	    safe_malloc(sizeof(char) * SHARED_NETWORKS_NAMES);
-
-	ranges = safe_malloc(sizeof(struct range_t) * RANGES);
-
-	/* First shared network entry is all networks */
-	strcpy(shared_net_names, "All networks");
-	return 0;
 }

src/dhcpd-pools.h

@@ -1,130 +1,372 @@
 /*
-** Copyright (C) 2006- Sami Kerola <kerolasa@iki.fi>
+ * The dhcpd-pools has BSD 2-clause license which also known as "Simplified
-**  
+ * BSD License" or "FreeBSD License".
-** This program is free software; you can redistribute it and/or modify
+ *
-** it under the terms of the GNU General Public License as published by
+ * Copyright 2006- Sami Kerola. All rights reserved.
-** the Free Software Foundation; either version 2 of the License, or
+ *
-** (at your option) any later version.
+ * Redistribution and use in source and binary forms, with or without
-** 
+ * modification, are permitted provided that the following conditions are
-** This program is distributed in the hope that it will be useful,
+ * met:
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    1. Redistributions of source code must retain the above copyright
-** GNU General Public License for more details.
+ *       notice, this list of conditions and the following disclaimer.
-** 
+ *
-** You should have received a copy of the GNU General Public License
+ *    2. Redistributions in binary form must reproduce the above copyright
-** along with this program; if not, write to the Free Software 
+ *       notice, this list of conditions and the following disclaimer in the
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *       documentation and/or other materials provided with the
-*/
+ *       distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of Sami Kerola.
+ */
+
+/*! \file dhcpd-pools.h
+ * \brief Global definitions of structures, enums, and function prototypes.
+ */
 
 #ifndef DHCPD_POOLS_H
 # define DHCPD_POOLS_H 1
 
-#include <config.h>
+# include <config.h>
+# include <arpa/inet.h>
+# include <stddef.h>
+# include <stdio.h>
+# include <string.h>
+# include <uthash.h>
 
-/* Feature test switches */
+/*! \def likely(x)
-#define _POSIX_SOURCE 1
+ * \brief Symbolic call to __builtin_expect'ed branch.
-#define POSIXLY_CORRECT 1
+ */
+/*! \def unlikely(x)
+ * \brief Symbolic call to not-__builtin_expect'ed branch.
+ */
+# ifdef HAVE_BUILTIN_EXPECT
+#  define likely(x)	__builtin_expect(!!(x), 1)
+#  define unlikely(x)	__builtin_expect(!!(x), 0)
+# else
+#  define likely(x)	(x)
+#  define unlikely(x)	(x)
+# endif
 
-#ifdef  HAVE_STDLIB_H
+/*! \def _DP_ATTRIBUTE_HOT
-#include <stdlib.h>
+ * \brief The function attribute __hot__ was added in gcc 4.3.  See gnu
-#else /* Not STDC_HEADERS */
+ * documentation for further information.
-extern void exit ();
+ * https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-hot-function-attribute
-extern char *malloc ();
+ */
-#endif /* STDC_HEADERS */
+# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+#  define _DP_ATTRIBUTE_HOT __attribute__ ((__hot__))
+# else
+#  define _DP_ATTRIBUTE_HOT	/* empty */
+# endif
 
-/* Structures and unions */
+/*! \union ipaddr_t
-struct configuration_t
+ * \brief Memory space for a binary IP address saving. */
-{
+union ipaddr_t {
-  char *dhcpdconf_file;
+	uint32_t v4;
-  char *dhcpdlease_file;
+	unsigned char v6[16];
-  char output_format[2];
-  char sort[6];
-  int reverse_order;
-  char *output_file;
-  int output_limit[2];
 };
-struct shared_network_t
+
-{
+/*! \enum dhcp_version
-  char *name;
+ * \brief The IP version, IPv4 or IPv6, served by the dhcpd.
-  unsigned long int available;
+ */
-  unsigned long int used;
+enum dhcp_version {
-  unsigned long int touched;
+	IPvUNKNOWN,
-  unsigned long int backups;
+	IPv4,
+	IPv6
 };
-struct range_t
+
-{
+/*! \enum prefix_t
-  struct shared_network_t *shared_net;
+ * \brief Enumeration of interesting data in dhcpd.leases file, that has to
-  unsigned long int first_ip;
+ * be further examined, and saved.  Functions xstrstr_v4() and xstrstr_v6()
-  unsigned long int last_ip;
+ * return one of these values to parse_leases().
-  unsigned long int count;
+ */
-  unsigned long int touched;
+enum prefix_t {
-  unsigned long int backups;
+	PREFIX_LEASE,
+	PREFIX_BINDING_STATE_FREE,
+	PREFIX_BINDING_STATE_ABANDONED,
+	PREFIX_BINDING_STATE_EXPIRED,
+	PREFIX_BINDING_STATE_RELEASED,
+	PREFIX_BINDING_STATE_ACTIVE,
+	PREFIX_BINDING_STATE_BACKUP,
+	PREFIX_HARDWARE_ETHERNET,
+	PREFIX_STARTS,
+	PREFIX_ENDS,
+	PREFIX_HOSTNAME,
+	NUM_OF_PREFIX
 };
-/* Global variables */
-static int true = 1;
-static int false = 0;
 
-char *program_name;
+/*! \enum color_mode
-struct configuration_t config;
+ * \brief Enumeration whether to use or not color output.
+ */
+enum color_mode {
+	color_unknown,
+	color_off,
+	color_on,
+	color_auto		/*!< Default, use colors when output terminal is interactive. */
+};
 
-static int output_limit_bit_1 = 1;
+/*! \struct shared_network_t
-static int output_limit_bit_2 = 2;
+ * \brief Counters for an individual shared network.  This data entry is
-static int output_limit_bit_3 = 4;
+ * also used for 'all networks' counting.
-unsigned int fullhtml;
+ */
+struct shared_network_t {
+	char *name;
+	double available;
+	double used;
+	double touched;
+	double backups;
+	struct shared_network_t *next;
+	int netmask;
+};
 
-struct shared_network_t *shared_networks;
+/*! \struct range_t
-char *shared_net_names;
+ * \brief Counters for an individual range.
-unsigned int num_shared_networks;
+ */
+struct range_t {
+	struct shared_network_t *shared_net;
+	union ipaddr_t first_ip;
+	union ipaddr_t last_ip;
+	double count;
+	double touched;
+	double backups;
+};
 
-struct range_t *ranges;
+/*! \struct output_helper_t
-unsigned int num_ranges;
+ * \brief Various per range and shared net temporary calculation results.
+ */
+struct output_helper_t {
+	double range_size;
+	double percent;
+	double tc;
+	double tcp;
+	double bup;
+	int status;
+};
 
-unsigned long int *leases;
+/*! \struct status_counts_t
-unsigned long int num_leases;
+ * \brief Range and shared network alarming status counts.
+ */
+struct status_counts_t {
+	unsigned int warning;
+	unsigned int critical;
+	unsigned int ok;
+	unsigned int ignored;
+};
 
-unsigned long int *touches;
+/*! \enum ltype
-unsigned long int num_touches;
+ * \brief Lease state types.  These are the possible values in struct leases_t.
+ */
+enum ltype {
+	ACTIVE,
+	FREE,
+	BACKUP
+};
 
-unsigned long int *backups;
+/*! \struct leases_t
-unsigned long int num_backups;
+ * \brief An individual lease. These leaases are hashed.
+ */
+struct leases_t {
+	union ipaddr_t ip;	/* ip as key */
+	char *ethernet;
+	UT_hash_handle hh;
+	enum ltype type;
+	char *ends;
+	char *starts;
+	char *hostname;
+};
+
+/*! \enum limbits
+ * \brief Output limit bits.
+ */
+enum limbits {
+	R_BIT = (1 << 0),	/*!< Range limit. */
+	S_BIT = (1 << 1),	/*!< Shared networks limit. */
+	A_BIT = (1 << 2)	/*!< All networks summary limit. */
+};
+
+/*! \def STATE_OK
+ * \brief Nagios alarm exit value.
+ */
+# define STATE_OK 0
+# define STATE_WARNING 1
+# define STATE_CRITICAL 2
+
+/*! \var comparer_t
+ * \brief Function pointer holding sort algorithm.
+ */
+typedef int (*comparer_t) (struct range_t *r1, struct range_t *r2);
+
+/*! \struct output_sort
+ * \brief Linked list of sort functions.
+ */
+struct output_sort {
+	comparer_t func;
+	struct output_sort *next;
+};
+
+/*! \struct conf_t
+ * \brief Runtime configuration state.
+ */
+struct conf_t {
+	struct shared_network_t *shared_net_root;	/*!< First entry in shared network linked list, that is the 'all networks', */
+	struct shared_network_t *shared_net_head;	/*!< Last entry in shared network linked list.  */
+	struct range_t *ranges;				/*!< Array of ranges. */
+	unsigned int num_ranges;			/*!< Number of ranges in the ranges array. */
+	enum dhcp_version ip_version;			/*!< Designator if the dhcpd is running in IPv4 or IPv6 mode. */
+	size_t ranges_size;				/*!< Size of the ranges array. */
+	struct leases_t *leases;			/*!< An array of individual leases from dhcpd.leases file. */
+	const char *dhcpdconf_file;			/*!< Path to dhcpd.conf file. */
+	const char *dhcpdlease_file;			/*!< Path to dhcpd.leases file. */
+	struct output_sort *sorts;			/*!< Linked list how to sort ranges. */
+	const char *output_file;			/*!< Output file path. */
+	const char *mustach_template;			/*!< Mustach template file path. */
+	double warning;					/*!< Warning percent threshold. */
+	double critical;				/*!< Critical percent threshold. */
+	double warn_count;				/*!< Maximum number of free IP's before warning. */
+	double crit_count;				/*!< Maximum number of free IP's before critical. */
+	double minsize;					/*!< Minimum size of range or shared network to be considered exceeding threshold. */
+	int color_format;				/*!< Column to use in color_tags array. */
+	char output_format;				/*!< Output format, such as text, json, xml, .... */
+	uint32_t
+		print_mac_addreses:1,			/*!< Print mac address in xml or json. */
+		reverse_order:1,			/*!< Reverse sort order. */
+		backups_found:1,			/*!< Indicator if dhcpd.leases file has leases in backup state. */
+		snet_alarms:1,				/*!< Suppress alarming thresholds for ranges that are part of a shared network. */
+		perfdata:1,				/*!< Include performance statistics when using Nagios alarm output format. */
+		all_as_shared:1,			/*!< Treat stand-alone subnets as a shared network. */
+		header_limit:4,				/*!< Bits to suppress header output. */
+		number_limit:3,				/*!< Bits to suppress value output. */
+		skip_ok:1,				/*!< Skip none-alarming values from output. */
+		skip_warning:1,				/*!< Skip warning values from output. */
+		skip_critical:1,			/*!< Skip critical values from output. */
+		skip_minsize:1,				/*!< Skip alarming values that are below minsize from output. */
+		skip_suppressed:1,			/*!< Skip alarming values that are suppressed with --snet-alarms option, or they are shared networks without IP availability. */
+		color_mode:2;				/*!< Indicator if colors should be used in output. */
+};
 
 /* Function prototypes */
-int prepare_memory (void);
+
-int parse_leases (void);
+/* analyze.c */
-char * parse_config (int, char *, char *, char *, struct shared_network_t *);
+extern void prepare_data(struct conf_t *state);
-int nth_field (int n, char *dest, const char *src);
+extern void do_counting(struct conf_t *state);
-int prepare_data (void);
+
-int do_counting (void);
+/* getdata.c */
-void flip_ranges(struct range_t *ranges, struct range_t *tmp_ranges);
+extern int parse_leases(struct conf_t *state);
-/* General support functions */
+extern void parse_config(struct conf_t *state, const int is_include,
-void *safe_malloc (size_t size);
+			 const char *restrict config_file,
-void eprintf (char *, ...);
+			 struct shared_network_t *restrict shared_p);
-void print_version (void);
+
-void usage (int status);
+/* hash.c */
-/* qsort required functions... */
+extern void (*add_lease) (struct conf_t *state, union ipaddr_t *addr, enum ltype type);
-/* ...for ranges and... */
+extern void add_lease_init(struct conf_t *state, union ipaddr_t *addr, enum ltype type);
-int intcomp (const void *x, const void *y);
+extern void add_lease_v4(struct conf_t *state, union ipaddr_t *addr, enum ltype type);
-int rangecomp (const void *r1, const void *r2);
+extern void add_lease_v6(struct conf_t *state, union ipaddr_t *addr, enum ltype type);
-/* sort function pointer and functions */
+
-int sort_name (void);
+extern struct leases_t *(*find_lease) (struct conf_t *state, union ipaddr_t *addr);
-unsigned long int (*returner) (struct range_t r);
+extern struct leases_t *find_lease_init(struct conf_t *state, union ipaddr_t *addr);
-unsigned long int ret_ip(struct range_t r);
+extern struct leases_t *find_lease_v4(struct conf_t *state, union ipaddr_t *addr);
-unsigned long int ret_cur(struct range_t r);
+extern struct leases_t *find_lease_v6(struct conf_t *state, union ipaddr_t *addr);
-unsigned long int ret_max(struct range_t r);
+
-unsigned long int ret_percent(struct range_t r);
+extern void delete_lease(struct conf_t *state, struct leases_t *lease);
-unsigned long int ret_touched(struct range_t r);
+extern void delete_all_leases(struct conf_t *state);
-unsigned long int ret_tc(struct range_t r);
+
-unsigned long int ret_tcperc(struct range_t r);
+/* mustach-dhcpd-pools.c */
-void field_selector(char c);
+extern int mustach_dhcpd_pools(struct conf_t *state);
-int get_order(struct range_t *left, struct range_t *right);
+
-void mergesort_ranges (struct range_t *orig, int size, struct range_t *temp);
+/* other.c */
-/* output function pointer and functions */
+extern void set_ipv_functions(struct conf_t *state, int version);
-int (*output_analysis) (void);
+extern void flip_ranges(struct conf_t *state);
-int output_txt (void);
+extern void clean_up(struct conf_t *state);
-int output_html (void);
+extern void parse_cidr(struct conf_t *state, struct range_t *range_p, const char *word);
-int output_xml (void);
+extern int parse_color_mode(const char *restrict arg);
-int output_csv (void);
+extern double strtod_or_err(const char *restrict str, const char *restrict errmesg);
-/* Memory release, file closing etc */
+extern void __attribute__ ((noreturn)) print_version(void);
-void clean_up (void);
+extern void __attribute__ ((noreturn)) usage(int status);
+extern void dp_time_tool(FILE *file, const char *path, int epoch);
+
+extern int (*parse_ipaddr) (struct conf_t *state, const char *restrict src,
+			    union ipaddr_t *restrict dst);
+extern int parse_ipaddr_init(struct conf_t *state, const char *restrict src,
+			     union ipaddr_t *restrict dst);
+extern int parse_ipaddr_v4(struct conf_t *state, const char *restrict src,
+			   union ipaddr_t *restrict dst);
+extern int parse_ipaddr_v6(struct conf_t *state, const char *restrict src,
+			   union ipaddr_t *restrict dst);
+
+extern int (*xstrstr) (struct conf_t *state, const char *restrict str);
+extern int xstrstr_init(struct conf_t *state, const char *restrict str);
+extern int xstrstr_v4(struct conf_t *state, const char *restrict str);
+extern int xstrstr_v6(struct conf_t *state, const char *restrict str);
+
+extern void (*copy_ipaddr) (union ipaddr_t *restrict dst, const union ipaddr_t *restrict src);
+extern void copy_ipaddr_init(union ipaddr_t *restrict dst, const union ipaddr_t *restrict src);
+extern void copy_ipaddr_v4(union ipaddr_t *restrict dst, const union ipaddr_t *restrict src);
+extern void copy_ipaddr_v6(union ipaddr_t *restrict dst, const union ipaddr_t *restrict src);
+
+extern const char *(*ntop_ipaddr) (const union ipaddr_t *ip);
+extern const char *ntop_ipaddr_init(const union ipaddr_t *ip);
+extern const char *ntop_ipaddr_v4(const union ipaddr_t *ip);
+extern const char *ntop_ipaddr_v6(const union ipaddr_t *ip);
+
+extern double (*get_range_size) (const struct range_t *r);
+extern double get_range_size_init(const struct range_t *r);
+extern double get_range_size_v4(const struct range_t *r);
+extern double get_range_size_v6(const struct range_t *r);
+
+/* output.c */
+extern int range_output_helper(struct conf_t *state, struct output_helper_t *oh,
+			       struct range_t *range_p);
+extern int shnet_output_helper(struct conf_t *state, struct output_helper_t *oh,
+			       struct shared_network_t *shared_p);
+extern int output_analysis(struct conf_t *state);
+extern void range_alarms(struct conf_t *state, struct status_counts_t *rangstat);
+extern void shared_net_alarms(struct conf_t *state, struct status_counts_t *sharstat);
+
+/* sort.c */
+extern void mergesort_ranges(struct conf_t *state,
+			     struct range_t *restrict orig, unsigned int size,
+			     struct range_t *restrict temp, const int root_call);
+
+extern int (*leasecomp) (const struct leases_t *restrict a, const struct leases_t *restrict b);
+extern int leasecomp_init(const struct leases_t *restrict a
+			  __attribute__ ((unused)),
+			  const struct leases_t *restrict b __attribute__ ((unused)));
+extern int leasecomp_v4(const struct leases_t *restrict a, const struct leases_t *restrict b);
+extern int leasecomp_v6(const struct leases_t *restrict a, const struct leases_t *restrict b);
+
+extern int (*ipcomp) (const union ipaddr_t *restrict a, const union ipaddr_t *restrict b);
+extern int ipcomp_init(const union ipaddr_t *restrict a, const union ipaddr_t *restrict b);
+extern int ipcomp_v4(const union ipaddr_t *restrict a, const union ipaddr_t *restrict b);
+extern int ipcomp_v6(const union ipaddr_t *restrict a, const union ipaddr_t *restrict b);
+
+extern int rangecomp(const void *restrict r1, const void *restrict r2)
+    __attribute__ ((nonnull(1, 2)));
+
+extern int comp_cur(struct range_t *r1, struct range_t *r2);
+extern int comp_double(double f1, double f2);
+extern int comp_ip(struct range_t *r1, struct range_t *r2);
+extern int comp_max(struct range_t *r1, struct range_t *r2);
+extern int comp_percent(struct range_t *r1, struct range_t *r2);
+extern int comp_tc(struct range_t *r1, struct range_t *r2);
+extern int comp_tcperc(struct range_t *r1, struct range_t *r2);
+extern int comp_touched(struct range_t *r1, struct range_t *r2);
+
+extern comparer_t field_selector(char c);
+extern double ret_percent(struct range_t r);
+extern double ret_tc(struct range_t r);
+extern double ret_tcperc(struct range_t r);
 
 #endif /* DHCPD_POOLS_H */

src/getdata.c

@@ -1,454 +1,483 @@
 /*
-** Copyright (C) 2006- Sami Kerola <	>
+ * The dhcpd-pools has BSD 2-clause license which also known as "Simplified
-**  
+ * BSD License" or "FreeBSD License".
-** This program is free software; you can redistribute it and/or modify
+ *
-** it under the terms of the GNU General Public License as published by
+ * Copyright 2006- Sami Kerola. All rights reserved.
-** the Free Software Foundation; either version 2 of the License, or
+ *
-** (at your option) any later version.
+ * Redistribution and use in source and binary forms, with or without
-** 
+ * modification, are permitted provided that the following conditions are
-** This program is distributed in the hope that it will be useful,
+ * met:
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    1. Redistributions of source code must retain the above copyright
-** GNU General Public License for more details.
+ *       notice, this list of conditions and the following disclaimer.
-** 
+ *
-** You should have received a copy of the GNU General Public License
+ *    2. Redistributions in binary form must reproduce the above copyright
-** along with this program; if not, write to the Free Software 
+ *       notice, this list of conditions and the following disclaimer in the
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *       documentation and/or other materials provided with the
-*/
+ *       distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of Sami Kerola.
+ */
+
+/*! \file getdata.c
+ * \brief Functions to read data from dhcpd.conf and dhcdp.leases files.
+ */
 
-#ifdef HAVE_CONFIG_H
 #include <config.h>
-#endif
 
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#ifdef  HAVE_STDLIB_H
-#include <stdlib.h>
-#else				/* Not STDC_HEADERS */
-extern void exit();
-extern char *malloc();
-#define EXIT_FAILURE    1	/* Failing exit status.  */
-#define EXIT_SUCCESS    0	/* Successful exit status.  */
-#endif				/* STDC_HEADERS */
-
-#ifdef  HAVE_STRING_H
-#include <string.h>
-#else
-#include <strings.h>
-#endif
-
-#include <stdio.h>
 #include <arpa/inet.h>
-#include <netinet/in.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#define _XOPEN_SOURCE 600
-#include <fcntl.h>
-#include <errno.h>
 #include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
 #include <limits.h>
+#include <netinet/in.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+#include "error.h"
+#include "xalloc.h"
 
 #include "dhcpd-pools.h"
-#include "defaults.h"
 
-/* Parse dhcpd.leases file. All performance boosts for this
+/*! \enum dhcpd_magic_numbers
- * function are wellcome */
+ * \brief MAXLEN is maximum expected line length in dhcpd.conf and
-int parse_leases(void)
+ * dhcpd.leases.
+ */
+enum dhcpd_magic_numbers {
+	MAXLEN = 1024
+};
+
+/*! \enum isc_conf_parser
+ * \brief Configuration file parsing state flags.  The
+ * is_interesting_config_clause() will return one of these to parse_config().
+ */
+enum isc_conf_parser {
+	ITS_NOTHING_INTERESTING,
+	ITS_A_RANGE_FIRST_IP,
+	ITS_A_RANGE_SECOND_IP,
+	ITS_A_SHAREDNET,
+	ITS_AN_INCLUDE,
+	ITS_A_SUBNET,
+	ITS_A_NETMASK
+};
+
+/*! \brief Lease file parser.  The parser can only read ISC DHCPD
+ * dhcpd.leases file format.  */
+int parse_leases(struct conf_t *state)
 {
 	FILE *dhcpd_leases;
-	char *line, *ipstring, *macstring, *macstring2;
+	char *line, *ipstring, macstring[20], *stop, endsstr[30], startsstr[30], hostnamestr[MAXLEN];
-	struct in_addr inp;
+	union ipaddr_t addr;
-	struct stat lease_file_stats;
+	struct leases_t *lease;
-	unsigned long leasesmallocsize;
-	unsigned long touchesmallocsize;
-	unsigned long backupsmallocsize;
-	int sw_active_lease = 0;
-
-	num_touches = num_leases = num_backups = 0;
-
-	dhcpd_leases = fopen(config.dhcpdlease_file, "r");
-	if (dhcpd_leases == NULL) {
-		eprintf("parse_leases: %s:", config.dhcpdlease_file);
-		exit(EXIT_FAILURE);
-	}
-#ifdef POSIX_FADV_NOREUSE
-	posix_fadvise((long) dhcpd_leases, 0, 0, POSIX_FADV_NOREUSE);
-	if (errno) {
-		eprintf("parse_leases: fadvise:");
-		exit(EXIT_FAILURE);
-	}
-#endif				/* POSIX_FADV_NOREUSE */
-#ifdef POSIX_FADV_SEQUENTIAL
-	posix_fadvise((long) dhcpd_leases, 0, 0, POSIX_FADV_SEQUENTIAL);
-	if (errno) {
-		eprintf("parse_leases: fadvise:");
-		exit(EXIT_FAILURE);
-	}
-#endif				/* POSIX_FADV_SEQUENTIAL */
-	/* I found out that there's one lease address per 300 bytes in
-	 * dhcpd.leases file. Malloc is little bit pessimistic and uses
-	 * 250. If someone has higher density in lease file I'm
-	 * interested to hear about that. */
-	if (stat(config.dhcpdlease_file, &lease_file_stats)) {
-		eprintf("parse_leases: %s:", config.dhcpdlease_file);
-		exit(EXIT_FAILURE);
-	}
-	leasesmallocsize = (lease_file_stats.st_size / 250) + MAXLEN - 2;
-	touchesmallocsize = (lease_file_stats.st_size / 250) + MAXLEN - 2;
-	backupsmallocsize = (lease_file_stats.st_size / 120) + MAXLEN - 2;
-	leases = safe_malloc(sizeof(long int) * leasesmallocsize);
-	touches =
-	    safe_malloc((size_t) sizeof(long int) * touchesmallocsize);
-
-	line = safe_malloc(sizeof(long int) * MAXLEN);
-	ipstring = safe_malloc(sizeof(long int) * MAXLEN);
-	macstring = safe_malloc(sizeof(long int) * MAXLEN);
-	macstring2 = safe_malloc(sizeof(long int) * MAXLEN);
 
+	dhcpd_leases = fopen(state->dhcpdlease_file, "r");
+	if (dhcpd_leases == NULL)
+		error(EXIT_FAILURE, errno, "parse_leases: %s", state->dhcpdlease_file);
+#ifdef HAVE_POSIX_FADVISE
+# ifdef POSIX_FADV_SEQUENTIAL
+	if (posix_fadvise(fileno(dhcpd_leases), 0, 0, POSIX_FADV_SEQUENTIAL) != 0)
+		error(EXIT_FAILURE, errno, "parse_leases: fadvise %s", state->dhcpdlease_file);
+# endif				/* POSIX_FADV_SEQUENTIAL */
+#endif				/* HAVE_POSIX_FADVISE */
+	line = xmalloc(sizeof(char) * MAXLEN);
+	line[0] = '\0';
+	ipstring = xmalloc(sizeof(char) * MAXLEN);
+	ipstring[0] = '\0';
+	endsstr[0] = '\0';
+	startsstr[0] = '\0';
+	hostnamestr[0] = '\0';
 	while (!feof(dhcpd_leases)) {
-		fgets(line, MAXLEN, dhcpd_leases);
+		if (!fgets(line, MAXLEN, dhcpd_leases) && ferror(dhcpd_leases))
-		/* It's a lease, save IP */
+			error(EXIT_FAILURE, errno, "parse_leases: %s", state->dhcpdlease_file);
-		if (strstr(line, "lease") == line) {
+		switch (xstrstr(state, line)) {
-			strncpy(ipstring, line, (size_t) MAXLEN);
+			/* It's a lease, save IP */
-			nth_field(2, ipstring, ipstring);
+		case PREFIX_LEASE:
-			inet_aton(ipstring, &inp);
+			stop =
-			sw_active_lease = 0;
+			    memccpy(ipstring,
-		}
+				    line + (state->ip_version ==
-		/* Copy IP to correct array */
+					    IPv4 ? 6 : 9), ' ', strlen(line));
-		else if (strstr(line, "binding state active")) {
+			if (stop != NULL) {
-			leases[num_leases] = htonl(inp.s_addr);
+				--stop;
-			num_leases++;
+				*stop = '\0';
-			sw_active_lease = 1;
-		} else if (strstr(line, "  binding state free")) {
-			touches[num_touches] = htonl(inp.s_addr);
-			num_touches++;
-		} else if (strstr(line, "  binding state backup")) {
-			if (num_backups == 0) {
-				backups =
-				    safe_malloc((size_t) sizeof(long int) *
-						backupsmallocsize);
 			}
-			backups[num_backups] = htonl(inp.s_addr);
+			parse_ipaddr(state, ipstring, &addr);
-			num_backups++;
+			break;
-		}
+		case PREFIX_BINDING_STATE_FREE:
-
+		case PREFIX_BINDING_STATE_ABANDONED:
-		if ((sw_active_lease == 1)
+		case PREFIX_BINDING_STATE_EXPIRED:
-		    && (strstr(line, "hardware ethernet"))) {
+		case PREFIX_BINDING_STATE_RELEASED:
-			nth_field(3, macstring, line);
+			if ((lease = find_lease(state, &addr)) != NULL)
-			macstring[strlen(macstring) - 1] = '\0';
+				delete_lease(state, lease);
-
+			add_lease(state, &addr, FREE);
-			if (config.output_format[0] == 'X') {
+			break;
-				printf
+		case PREFIX_BINDING_STATE_ACTIVE:
-				    ("<active_lease>\n\t<ip>%s</ip>\n\t<macaddress>%s</macaddress>\n</active_lease>\n",
+			/* remove old entry, if exists */
-				     ipstring, macstring);
+			if ((lease = find_lease(state, &addr)) != NULL)
-			};
+				delete_lease(state, lease);
-		}
+			add_lease(state, &addr, ACTIVE);
-
+			break;
-		if ((num_leases > leasesmallocsize) ||
+		case PREFIX_BINDING_STATE_BACKUP:
-		    (num_touches > touchesmallocsize) ||
+			/* remove old entry, if exists */
-		    (num_backups > backupsmallocsize)) {
+			if ((lease = find_lease(state, &addr)) != NULL)
-			printf("WARNING: running out of memory\n");
+				delete_lease(state, lease);
-			printf("\tlease/touch/backup = %lu/%lu/%lu\n",
+			add_lease(state, &addr, BACKUP);
-			       leasesmallocsize, touchesmallocsize,
+			state->backups_found = 1;
-			       backupsmallocsize);
+			break;
-			printf("\tlease/touch/backup = %lu/%lu/%lu\n",
+		case PREFIX_HARDWARE_ETHERNET:
-			       num_leases, num_touches, num_backups);
+			if (state->print_mac_addreses == 0)
-			printf
-			    ("Code should realloc() and init new memory, but no time to write that now!\n");
-			exit(EXIT_FAILURE);
-		}
-	}
-
-	return 0;
-}
-
-/* Like strcpy but for field which is separated by white spaces.
- * Number of first field is 1 and not 0 like C programs should
- * have. Question of semantics, send mail to author if this
- * annoys. All performance boosts for this function are well
- * come. */
-int nth_field(int n, char *dest, const char *src)
-{
-	int i, j = 0, wordn = 0, len;
-
-	len = strlen(src);
-
-	for (i = 0; i < len; i++) {
-		if (isspace(src[i])) {
-			if (!(wordn < n)) {
-				dest[j] = '\0';
 				break;
+			memcpy(macstring, line + 20, 17);
+			macstring[17] = '\0';
+			if ((lease = find_lease(state, &addr)) != NULL) {
+				lease->ethernet = xstrdup(macstring);
+				lease->starts = xstrdup(startsstr);
+				startsstr[0] = '\0';
+				lease->ends = xstrdup(endsstr);
+				endsstr[0] = '\0';
 			}
-			j = 0;
+			break;
-		} else {
+		case PREFIX_ENDS:
-			if (j == 0) {
+			if (state->print_mac_addreses == 0)
-				wordn++;
+				break;
+			strncpy(endsstr, line + 7, sizeof(endsstr)-1);
+			endsstr[strlen(endsstr)-2] = '\0';
+			break;
+		case PREFIX_STARTS:
+			if (state->print_mac_addreses == 0)
+				break;
+			strncpy(startsstr, line + 9, sizeof(startsstr)-1);
+			startsstr[strlen(startsstr)-2] = '\0';
+			break;
+		case PREFIX_HOSTNAME:
+			if (state->print_mac_addreses == 0)
+				break;
+			strncpy(hostnamestr, line + 19, sizeof(hostnamestr)-1);
+			hostnamestr[strlen(hostnamestr)-3] = '\0';
+			if ((lease = find_lease(state, &addr)) != NULL) {
+				lease->hostname = xstrdup(hostnamestr);
 			}
-			if (wordn == n) {
+			hostnamestr[0] = '\0';
-				dest[j] = src[i];
+			break;
-			}
+		default:
-			j++;
+			/* do nothing */ ;
 		}
 	}
+#undef HAS_PREFIX
+	free(line);
+	free(ipstring);
+	fclose(dhcpd_leases);
 	return 0;
 }
 
-/* dhcpd.conf interesting words */
+/*! \brief Keyword search in dhcpd.conf file.
-int is_interesting_config_clause(char *s)
+ * \param s A line from the dhcpd.conf file.
+ * \return Indicator what configuration was found. */
+static int is_interesting_config_clause(struct conf_t *state, char const *restrict s)
 {
-	if (strstr(s, "shared-network")) {
+	if (strstr(s, "range"))
-		return 1;
+		return ITS_A_RANGE_FIRST_IP;
-	} else if (strstr(s, "range")) {
+	if (strstr(s, "shared-network"))
-		return 3;
+		return ITS_A_SHAREDNET;
-	} else if (strstr(s, "include")) {
+	if (state->all_as_shared) {
-		return 4;
+		if (strstr(s, "subnet"))
-	} else {
+			return ITS_A_SUBNET;
-		return 0;
+		if (strstr(s, "netmask"))
+			return ITS_A_NETMASK;
+	}
+	if (strstr(s, "include"))
+		return ITS_AN_INCLUDE;
+	return ITS_NOTHING_INTERESTING;
+}
+
+/*! \brief Flip first and last IP in range if they are in unusual order.
+ */
+static void reorder_last_first(struct range_t *range_p)
+{
+	if (ipcomp(&range_p->first_ip, &range_p->last_ip) > 0) {
+		union ipaddr_t tmp;
+
+		tmp = range_p->first_ip;
+		range_p->first_ip = range_p->last_ip;
+		range_p->last_ip = tmp;
 	}
 }
 
-/* TODO: This spagetti monster function need to be rewrote at
+/*! \brief The dhcpd.conf file parser.
- * least ones. */
+ * FIXME: This spaghetti monster function needs to be rewrote at least
-char *parse_config(int is_include, char *config_file,
+ * ones more.
-		   char *current_shared_name,
+ */
-		   char *next_free_shared_name,
+void parse_config(struct conf_t *state, const int is_include, const char *restrict config_file,
-		   struct shared_network_t *shared_p)
+		  struct shared_network_t *restrict shared_p)
 {
 	FILE *dhcpd_config;
-	int i = 0, newclause = true, argument = false, comment =
+	int newclause = 1, comment = 0, one_ip_range = 0; /* booleans */
-	    false, braces = 0, quote = false;
+	int quote = 0, braces = 0, argument = ITS_NOTHING_INTERESTING;
-	char *word, c;
+	size_t i = 0;
+	char *word;
 	int braces_shared = 1000;
-	struct in_addr inp;
+	union ipaddr_t addr;
-	struct range_t *range_p;
+	struct range_t *range_p = NULL;
 
-	char *last_shared_name;
+	word = xmalloc(sizeof(char) * MAXLEN);
-	last_shared_name = SHARED_NETWORKS_NAMES + shared_net_names;
+	if (is_include)
-
-	word = safe_malloc(sizeof(char) * MAXLEN);
-
-	if (is_include) {
 		/* Default place holder for ranges "All networks". */
-		shared_p->name = current_shared_name;
+		shared_p->name = state->shared_net_root->name;
-	}
-
 	/* Open configuration file */
 	dhcpd_config = fopen(config_file, "r");
 	if (dhcpd_config == NULL) {
-		eprintf("parse_config: %s:", config_file);
+		if (is_include) {
-		exit(EXIT_FAILURE);
+			error(0, errno, "cannot open inlude: %s", config_file);
+			return;
+		}
+		/* config if from command line, just exit with error */
+		error(EXIT_FAILURE, errno, "parse_config: %s", config_file);
 	}
-#ifdef POSIX_FADV_NOREUSE
+#ifdef HAVE_POSIX_FADVISE
-	posix_fadvise((long) dhcpd_config, 0, 0, POSIX_FADV_NOREUSE);
+# ifdef POSIX_FADV_SEQUENTIAL
-	if (errno) {
+	if (posix_fadvise(fileno(dhcpd_config), 0, 0, POSIX_FADV_SEQUENTIAL) != 0)
-		eprintf("parse_config: fadvise:");
+		error(EXIT_FAILURE, errno, "parse_config: fadvise %s", config_file);
-		exit(EXIT_FAILURE);
+# endif				/* POSIX_FADV_SEQUENTIAL */
-	}
+#endif				/* HAVE_POSIX_FADVISE */
-#endif				/* POSIX_FADV_NOREUSE */
-#ifdef POSIX_FADV_SEQUENTIAL
-	posix_fadvise((long) dhcpd_config, 0, 0, POSIX_FADV_SEQUENTIAL);
-	if (errno) {
-		eprintf("parse_config: fadvise:");
-		exit(EXIT_FAILURE);
-	}
-#endif				/* POSIX_FADV_SEQUENTIAL */
 	/* Very hairy stuff begins. */
-	while (!feof(dhcpd_config)) {
+	while (unlikely(!feof(dhcpd_config))) {
+		int c;
+
 		c = fgetc(dhcpd_config);
+		if (CHAR_MAX < c)
+			continue;
 		/* Certain characters are magical */
 		switch (c) {
 			/* Handle comments if they are not quoted */
 		case '#':
-			if (quote == false) {
+			if (quote == 0)
-				comment = true;
+				comment = 1;
-			}
 			continue;
 		case '"':
-			if (comment == false) {
+			if (comment == 0) {
 				quote++;
 				/* Either one or zero */
 				quote = quote % 2;
 			}
 			continue;
 		case '\n':
-			/* New line resets comment section, but not if quoted */
+			/* New line resets comment section, but
-			if (quote == false) {
+			 * not if quoted */
-				comment = false;
+			if (quote == 0)
-			}
+				comment = 0;
 			break;
 		case ';':
 			/* Quoted colon does not mean new clause */
-			if (quote == true) {
+			if (0 < quote)
 				break;
-			}
+			if (comment == 0
-			if (comment == false && argument != 2
+			    && argument != ITS_A_RANGE_FIRST_IP
-			    && argument != 4) {
+			    && argument != ITS_A_RANGE_SECOND_IP && argument != ITS_AN_INCLUDE) {
-				newclause = true;
+				newclause = 1;
 				i = 0;
-			} else if (argument == 2) {
+			} else if (argument == ITS_A_RANGE_FIRST_IP && one_ip_range == 1) {
-				/* Range ends to ; and this hair in code make two
+				argument = ITS_A_RANGE_SECOND_IP;
-				 * ranges wrote to gether like...
+				c = ' ';
+			} else if (argument == ITS_A_RANGE_SECOND_IP && 0 < i) {
+				/* Range ends to ; and this hair in code
+				 * make two ranges wrote together like...
 				 *
 				 * range 10.20.30.40 10.20.30.41;range 10.20.30.42 10.20.30.43;
-				 * 
+				 *
 				 * ...to be interpreted correctly. */
 				c = ' ';
+				break;
+			} else if (argument == ITS_A_RANGE_SECOND_IP && i == 0) {
+				if (!range_p) {
+					long int pos;
+					pos = ftell(dhcpd_config);
+					error(EXIT_FAILURE, 0, "parse_config: parsing failed at position: %ld", pos);
+				}
+				range_p->last_ip = range_p->first_ip;
+				goto newrange;
 			}
 			continue;
 		case '{':
-			if (quote == true) {
+			if (0 < quote)
 				break;
-			}
+			if (comment == 0)
-			if (comment == false) {
 				braces++;
-			}
 			/* i == 0 detects word that ends to brace like:
 			 *
 			 * shared-network DSL{ ... */
 			if (i == 0) {
-				newclause = true;
+				newclause = 1;
+				continue;
 			}
-			continue;
+			break;
 		case '}':
-			if (quote == true) {
+			if (0 < quote)
 				break;
-			}
+			if (comment == 0) {
-			if (comment == false) {
 				braces--;
 				/* End of shared-network */
 				if (braces_shared == braces) {
-					current_shared_name =
+					/* FIXME: Using 1000 is lame, but
-					    shared_net_names;
+					 * works. */
-					/* TODO: Using 1000 is lame, but works. */
 					braces_shared = 1000;
-					shared_p = shared_networks;
+					shared_p = state->shared_net_root;
 				}
-				/* Not literally true, but works for this program */
+				/* Not literally 1, but works for this
-				newclause = true;
+				 * program */
+				newclause = 1;
 			}
 			continue;
 		default:
 			break;
 		}
-
 		/* Either inside comment or Nth word of clause. */
-		if (comment == true
+		if (comment == 1 || (newclause == 0 && argument == ITS_NOTHING_INTERESTING))
-		    || (newclause == false && argument == 0)) {
 			continue;
-		}
 		/* Strip white spaces before new clause word. */
-		if ((newclause == true || argument != 0) && isspace(c)
+		if ((newclause == 1 || argument != ITS_NOTHING_INTERESTING)
-		    && i == 0) {
+		    && isspace(c) && i == 0 && one_ip_range == 0)
 			continue;
-		}
 		/* Save to word which clause this is. */
-		if ((newclause == true || argument != 0)
+		if ((newclause == 1 || argument != ITS_NOTHING_INTERESTING)
-		    && (!isspace(c) || quote == true)) {
+		    && (!isspace(c) || 0 < quote)) {
-			word[i] = c;
+			word[i] = (char) c;
 			i++;
-			/* Long word which is almost causing overflow. Not any of words
+			/* Long word which is almost causing overflow. None
-			 * this program is looking for are this long. */
+			 * of words are this long which the program is
-			if (i > MAXLEN) {
+			 * searching. */
-				newclause = false;
+			if (MAXLEN == i) {
+				newclause = 0;
 				i = 0;
 				continue;
 			}
 		}
 		/* See if clause is something that parser is looking for. */
-		else if (newclause == true) {
+		else if (newclause == 1) {
 			/* Insert string end & set state */
 			word[i] = '\0';
-			newclause = false;
+			if (word[i - 1] != '{')
+				newclause = 0;
 			i = 0;
-
+			argument = is_interesting_config_clause(state, word);
-			argument = is_interesting_config_clause(word);
+			if (argument == ITS_A_RANGE_FIRST_IP)
+				one_ip_range = 1;
 		}
 		/* words after range, shared-network or include */
-		else if (argument != 0) {
+		else if (argument != ITS_NOTHING_INTERESTING) {
 			word[i] = '\0';
-			newclause = false;
+			newclause = 0;
 			i = 0;
 
 			switch (argument) {
-			case 0:
+			case ITS_A_RANGE_SECOND_IP:
-				/* printf ("nothing interesting: %s\n", word); */
-				argument = 0;
-				break;
-			case 1:
-				/* printf ("shared-network named: %s\n", word); */
-				strcpy(next_free_shared_name, word);
-				shared_p =
-				    shared_networks + num_shared_networks;
-				num_shared_networks++;
-				shared_p++;
-				shared_p->name = next_free_shared_name;
-				shared_p->available = 0;
-				shared_p->used = 0;
-				shared_p->touched = 0;
-				shared_p->backups = 0;
-				/* Temporary abuse of argument variable */
-				argument =
-				    strlen(next_free_shared_name) + 1;
-				if (last_shared_name >
-				    next_free_shared_name + argument) {
-					next_free_shared_name += argument;
-				} else {
-					/* TODO: make this go away by reallocationg more space. */
-					eprintf
-					    ("parse_config: End of shared-network space, increase SHARED_NETWORKS_NAMES and recompile");
-					exit(EXIT_FAILURE);
-				}
-				argument = 0;
-				braces_shared = braces;
-				break;
-			case 2:
 				/* printf ("range 2nd ip: %s\n", word); */
-				range_p = ranges + num_ranges;
+				range_p = state->ranges + state->num_ranges;
-				inet_aton(word, &inp);
+				argument = ITS_NOTHING_INTERESTING;
-				argument = 0;
+				if (strchr(word, '/')) {
-				range_p->last_ip = htonl(inp.s_addr) + 1;
+					parse_cidr(state, range_p, word);
+					one_ip_range = 0;
+				} else {
+					/* not cidr */
+					parse_ipaddr(state, word, &addr);
+					if (one_ip_range == 1) {
+						one_ip_range = 0;
+						copy_ipaddr(&range_p->first_ip, &addr);
+					}
+					copy_ipaddr(&range_p->last_ip, &addr);
+					reorder_last_first(range_p);
+				}
+ newrange:
 				range_p->count = 0;
 				range_p->touched = 0;
 				range_p->backups = 0;
 				range_p->shared_net = shared_p;
-				num_ranges++;
+				state->num_ranges++;
-				if (num_ranges > RANGES) {
+				if (state->ranges_size <= state->num_ranges) {
-					eprintf
+					state->ranges_size *= 2;
-					    ("parse_config: Range space full! Increase RANGES and recompile.");
+					state->ranges = xrealloc(state->ranges, sizeof(struct range_t) * state->ranges_size);
-					exit(EXIT_FAILURE);
+					range_p = state->ranges + state->num_ranges;
 				}
-				newclause = true;
+				newclause = 1;
 				break;
-			case 3:
+			case ITS_A_RANGE_FIRST_IP:
-				/* printf ("range 1nd ip: %s\n", word); */
+				/* printf ("range 1st ip: %s\n", word); */
-				range_p = ranges + num_ranges;
+				range_p = state->ranges + state->num_ranges;
-				inet_aton(word, &inp);
+				if (!(parse_ipaddr(state, word, &addr)))
-				range_p->first_ip = htonl(inp.s_addr) - 1;
-				if (range_p->first_ip == UINT_MAX) {
 					/* word was not ip, try again */
 					break;
-				}
+				copy_ipaddr(&range_p->first_ip, &addr);
-				argument = 2;
+				one_ip_range = 0;
+				argument = ITS_A_RANGE_SECOND_IP;
 				break;
-			case 4:
+			case ITS_A_SHAREDNET:
+			case ITS_A_SUBNET:
+				/* ignore subnets inside a shared-network */
+				if (argument == ITS_A_SUBNET && shared_p != state->shared_net_root) {
+					argument = ITS_NOTHING_INTERESTING;
+					break;
+				}
+				state->shared_net_head->next = xcalloc(sizeof(struct shared_network_t), 1);
+				state->shared_net_head = state->shared_net_head->next;
+				shared_p = state->shared_net_head;
+				shared_p->name = xstrdup(word);
+				shared_p->netmask = (argument == ITS_A_SUBNET ? -1 : 0); /* do not fill in netmask */
+				/* record network's mask too */
+				if (argument == ITS_A_SUBNET)
+				        newclause = 1;
+				argument = ITS_NOTHING_INTERESTING;
+				braces_shared = braces;
+				break;
+			case ITS_A_NETMASK:
+				/* fill in only when requested to do so */
+				if (shared_p->netmask) {
+					if (!(parse_ipaddr(state, word, &addr)))
+						break;
+					shared_p->netmask = 32;
+					while ((addr.v4 & 0x01) == 0) {
+						addr.v4 >>= 1;
+						shared_p->netmask--;
+					}
+					snprintf(word, MAXLEN-1, "%s/%d", shared_p->name, shared_p->netmask);
+					if (shared_p->name)
+						free(shared_p->name);
+					shared_p->name = xstrdup(word);
+				}
+				argument = ITS_NOTHING_INTERESTING;
+				braces_shared = braces;
+				break;
+			case ITS_AN_INCLUDE:
 				/* printf ("include file: %s\n", word); */
-				argument = 0;
+				argument = ITS_NOTHING_INTERESTING;
-				next_free_shared_name =
+				parse_config(state, 0, word, shared_p);
-				    parse_config(false, word, current_shared_name,
+				newclause = 1;
-						 next_free_shared_name,
+				break;
-						 shared_p);
+			case ITS_NOTHING_INTERESTING:
-				newclause = true;
+				/* printf ("nothing interesting: %s\n", word); */
+				argument = ITS_NOTHING_INTERESTING;
 				break;
 			default:
-				eprintf
+				puts("impossible occurred, report a bug");
-				    ("parse_config: This cannot happen, report a bug!");
+				abort();
-				exit(EXIT_FAILURE);
 			}
 		}
 	}
 	free(word);
-	return next_free_shared_name;
+	fclose(dhcpd_config);
+	return;
 }

src/getopt.h

@@ -1,183 +0,0 @@
-/* Declarations for getopt.
-   Copyright (C) 1989-1994, 1996-1999, 2001 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-#ifndef _GETOPT_H
-
-#ifndef __need_getopt
-# define _GETOPT_H 1
-#endif
-
-/* If __GNU_LIBRARY__ is not already defined, either we are being used
-   standalone, or this is the first header included in the source file.
-   If we are being used with glibc, we need to include <features.h>, but
-   that does not exist if we are standalone.  So: if __GNU_LIBRARY__ is
-   not defined, include <ctype.h>, which will pull in <features.h> for us
-   if it's from glibc.  (Why ctype.h?  It's guaranteed to exist and it
-   doesn't flood the namespace with stuff the way some other headers do.)  */
-#if !defined __GNU_LIBRARY__
-# include <ctype.h>
-#endif
-
-#ifdef	__cplusplus
-extern "C"
-{
-#endif
-
-/* For communication from `getopt' to the caller.
-   When `getopt' finds an option that takes an argument,
-   the argument value is returned here.
-   Also, when `ordering' is RETURN_IN_ORDER,
-   each non-option ARGV-element is returned here.  */
-
-  extern char *optarg;
-
-/* Index in ARGV of the next element to be scanned.
-   This is used for communication to and from the caller
-   and for communication between successive calls to `getopt'.
-
-   On entry to `getopt', zero means this is the first call; initialize.
-
-   When `getopt' returns -1, this is the index of the first of the
-   non-option elements that the caller should itself scan.
-
-   Otherwise, `optind' communicates from one call to the next
-   how much of ARGV has been scanned so far.  */
-
-  extern int optind;
-
-/* Callers store zero here to inhibit the error message `getopt' prints
-   for unrecognized options.  */
-
-  extern int opterr;
-
-/* Set to an option character which was unrecognized.  */
-
-  extern int optopt;
-
-#ifndef __need_getopt
-/* Describe the long-named options requested by the application.
-   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
-   of `struct option' terminated by an element containing a name which is
-   zero.
-
-   The field `has_arg' is:
-   no_argument		(or 0) if the option does not take an argument,
-   required_argument	(or 1) if the option requires an argument,
-   optional_argument 	(or 2) if the option takes an optional argument.
-
-   If the field `flag' is not NULL, it points to a variable that is set
-   to the value given in the field `val' when the option is found, but
-   left unchanged if the option is not found.
-
-   To have a long-named option do something other than set an `int' to
-   a compiled-in constant, such as set a value from `optarg', set the
-   option's `flag' field to zero and its `val' field to a nonzero
-   value (the equivalent single-letter option character, if there is
-   one).  For long options that have a zero `flag' field, `getopt'
-   returns the contents of the `val' field.  */
-
-  struct option
-  {
-# if (defined __STDC__ && __STDC__) || defined __cplusplus
-    const char *name;
-# else
-    char *name;
-# endif
-    /* has_arg can't be an enum because some compilers complain about
-       type mismatches in all the code that assumes it is an int.  */
-    int has_arg;
-    int *flag;
-    int val;
-  };
-
-/* Names for the values of the `has_arg' field of `struct option'.  */
-
-# define no_argument		0
-# define required_argument	1
-# define optional_argument	2
-#endif				/* need getopt */
-
-
-/* Get definitions and prototypes for functions to process the
-   arguments in ARGV (ARGC of them, minus the program name) for
-   options given in OPTS.
-
-   Return the option character from OPTS just read.  Return -1 when
-   there are no more options.  For unrecognized options, or options
-   missing arguments, `optopt' is set to the option letter, and '?' is
-   returned.
-
-   The OPTS string is a list of characters which are recognized option
-   letters, optionally followed by colons, specifying that that letter
-   takes an argument, to be placed in `optarg'.
-
-   If a letter in OPTS is followed by two colons, its argument is
-   optional.  This behavior is specific to the GNU `getopt'.
-
-   The argument `--' causes premature termination of argument
-   scanning, explicitly telling `getopt' that there are no more
-   options.
-
-   If OPTS begins with `--', then non-option arguments are treated as
-   arguments to the option '\0'.  This behavior is specific to the GNU
-   `getopt'.  */
-
-#if (defined __STDC__ && __STDC__) || defined __cplusplus
-# ifdef __GNU_LIBRARY__
-/* Many other libraries have conflicting prototypes for getopt, with
-   differences in the consts, in stdlib.h.  To avoid compilation
-   errors, only prototype getopt for the GNU C library.  */
-  extern int getopt (int __argc, char *const *__argv,
-		     const char *__shortopts);
-# else				/* not __GNU_LIBRARY__ */
-  extern int getopt ();
-# endif				/* __GNU_LIBRARY__ */
-
-# ifndef __need_getopt
-  extern int getopt_long (int __argc, char *const *__argv,
-			  const char *__shortopts,
-			  const struct option *__longopts, int *__longind);
-  extern int getopt_long_only (int __argc, char *const *__argv,
-			       const char *__shortopts,
-			       const struct option *__longopts,
-			       int *__longind);
-
-/* Internal only.  Users should not call this directly.  */
-  extern int _getopt_internal (int __argc, char *const *__argv,
-			       const char *__shortopts,
-			       const struct option *__longopts,
-			       int *__longind, int __long_only);
-# endif
-#else				/* not __STDC__ */
-  extern int getopt ();
-# ifndef __need_getopt
-  extern int getopt_long ();
-  extern int getopt_long_only ();
-
-  extern int _getopt_internal ();
-# endif
-#endif				/* __STDC__ */
-
-#ifdef	__cplusplus
-}
-#endif
-
-/* Make sure we later can get all the definitions and declarations.  */
-#undef __need_getopt
-
-#endif				/* getopt.h */

src/getopt1.c

@@ -1,187 +0,0 @@
-/* getopt_long and getopt_long_only entry points for GNU getopt.
-   Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
-     Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "getopt.h"
-
-#if !defined __STDC__ || !__STDC__
-/* This is a separate conditional since some stdc systems
-   reject `defined (const)'.  */
-#ifndef const
-#define const
-#endif
-#endif
-
-#include <stdio.h>
-
-/* Comment out all this code if we are using the GNU C Library, and are not
-   actually compiling the library itself.  This code is part of the GNU C
-   Library, but also included in many other GNU distributions.  Compiling
-   and linking in this code is a waste when using the GNU C library
-   (especially if it is a shared library).  Rather than having every GNU
-   program understand `configure --with-gnu-libc' and omit the object files,
-   it is simpler to just do this in the source for each such file.  */
-
-#define GETOPT_INTERFACE_VERSION 2
-#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
-#include <gnu-versions.h>
-#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
-#define ELIDE_CODE
-#endif
-#endif
-
-#ifndef ELIDE_CODE
-
-
-/* This needs to come after some library #include
-   to get __GNU_LIBRARY__ defined.  */
-#ifdef __GNU_LIBRARY__
-#include <stdlib.h>
-#endif
-
-#ifndef	NULL
-#define NULL 0
-#endif
-
-int getopt_long(argc, argv, options, long_options, opt_index)
-int argc;
-char *const *argv;
-const char *options;
-const struct option *long_options;
-int *opt_index;
-{
-	return _getopt_internal(argc, argv, options, long_options,
-				opt_index, 0);
-}
-
-/* Like getopt_long, but '-' as well as '--' can indicate a long option.
-   If an option that starts with '-' (not '--') doesn't match a long option,
-   but does match a short option, it is parsed as a short option
-   instead.  */
-
-int getopt_long_only(argc, argv, options, long_options, opt_index)
-int argc;
-char *const *argv;
-const char *options;
-const struct option *long_options;
-int *opt_index;
-{
-	return _getopt_internal(argc, argv, options, long_options,
-				opt_index, 1);
-}
-
-
-#endif				/* Not ELIDE_CODE.  */
-
-#ifdef TEST
-
-#include <stdio.h>
-
-int main(argc, argv)
-int argc;
-char **argv;
-{
-	int c;
-	int digit_optind = 0;
-
-	while (1) {
-		int this_option_optind = optind ? optind : 1;
-		int option_index = 0;
-		static struct option long_options[] = {
-			{"add", 1, 0, 0},
-			{"append", 0, 0, 0},
-			{"delete", 1, 0, 0},
-			{"verbose", 0, 0, 0},
-			{"create", 0, 0, 0},
-			{"file", 1, 0, 0},
-			{0, 0, 0, 0}
-		};
-
-		c = getopt_long(argc, argv, "abc:d:0123456789",
-				long_options, &option_index);
-		if (c == -1)
-			break;
-
-		switch (c) {
-		case 0:
-			printf("option %s",
-			       long_options[option_index].name);
-			if (optarg)
-				printf(" with arg %s", optarg);
-			printf("\n");
-			break;
-
-		case '0':
-		case '1':
-		case '2':
-		case '3':
-		case '4':
-		case '5':
-		case '6':
-		case '7':
-		case '8':
-		case '9':
-			if (digit_optind != 0
-			    && digit_optind != this_option_optind)
-				printf
-				    ("digits occur in two different argv-elements.\n");
-			digit_optind = this_option_optind;
-			printf("option %c\n", c);
-			break;
-
-		case 'a':
-			printf("option a\n");
-			break;
-
-		case 'b':
-			printf("option b\n");
-			break;
-
-		case 'c':
-			printf("option c with value `%s'\n", optarg);
-			break;
-
-		case 'd':
-			printf("option d with value `%s'\n", optarg);
-			break;
-
-		case '?':
-			break;
-
-		default:
-			printf
-			    ("?? getopt returned character code 0%o ??\n",
-			     c);
-		}
-	}
-
-	if (optind < argc) {
-		printf("non-option ARGV-elements: ");
-		while (optind < argc)
-			printf("%s ", argv[optind++]);
-		printf("\n");
-	}
-
-	exit(0);
-}
-
-#endif				/* TEST */

src/hash.c

@@ -0,0 +1,156 @@
+/*
+ * The dhcpd-pools has BSD 2-clause license which also known as "Simplified
+ * BSD License" or "FreeBSD License".
+ *
+ * Copyright 2012- Enno Gröper. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *    1. Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the
+ *       distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of Sami Kerola.
+ */
+
+/*! \file hash.c
+ * \brief The leases hash functions. The hash sorting is key to make
+ * analysis happen as quick as possible..
+ */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#include "xalloc.h"
+
+#include "dhcpd-pools.h"
+
+#define HASH_FIND_V6(head, findv6, out) HASH_FIND(hh, head, findv6, 16, out)
+#define HASH_ADD_V6(head, v6field, add) HASH_ADD(hh, head, v6field, 16, add)
+
+/*! \brief Add a lease to hash array.
+ * \param addr Binary IP to be added in leases hash.
+ * \param type Lease state of the IP. */
+void add_lease_init(struct conf_t *state __attribute__ ((unused)), union ipaddr_t *addr
+		    __attribute__ ((unused)), enum ltype type __attribute__ ((unused)))
+{
+}
+
+void add_lease_v4(struct conf_t *state, union ipaddr_t *addr, enum ltype type)
+{
+	struct leases_t *l;
+
+	l = xmalloc(sizeof(struct leases_t));
+	copy_ipaddr(&l->ip, addr);
+	l->type = type;
+	HASH_ADD_INT(state->leases, ip.v4, l);
+	l->ethernet = NULL;
+	l->ends = NULL;
+	l->starts = NULL;
+	l->hostname = NULL;
+}
+
+void add_lease_v6(struct conf_t *state, union ipaddr_t *addr, enum ltype type)
+{
+	struct leases_t *l;
+
+	l = xmalloc(sizeof(struct leases_t));
+	copy_ipaddr(&l->ip, addr);
+	l->type = type;
+	HASH_ADD_V6(state->leases, ip.v6, l);
+	l->ethernet = NULL;
+	l->ends = NULL;
+	l->starts = NULL;
+	l->hostname = NULL;
+}
+
+/*! \brief Find pointer to lease from hash array.
+ * \param addr Binary IP searched from leases hash.
+ * \return A lease structure about requested IP, or NULL.
+ */
+struct leases_t *find_lease_init(struct conf_t *state __attribute__ ((unused)), union ipaddr_t *addr
+				 __attribute__ ((unused)))
+{
+	return NULL;
+}
+
+struct leases_t *find_lease_v4(struct conf_t *state, union ipaddr_t *addr)
+{
+	struct leases_t *l;
+
+	HASH_FIND_INT(state->leases, &addr->v4, l);
+	return l;
+}
+
+struct leases_t *find_lease_v6(struct conf_t *state, union ipaddr_t *addr)
+{
+	struct leases_t *l;
+
+	HASH_FIND_V6(state->leases, &addr->v4, l);
+	return l;
+}
+
+/*! \brief Delete a lease from hash array.
+ * \param lease Pointer to lease hash. */
+void delete_lease(struct conf_t *state, struct leases_t *lease)
+{
+	free(lease->ethernet);
+	free(lease->ends);
+	free(lease->starts);
+	free(lease->hostname);
+	HASH_DEL(state->leases, lease);
+	free(lease);
+}
+
+/*! \brief Delete all leases from hash array. */
+#ifdef HASH_ITER
+void delete_all_leases(struct conf_t *state)
+{
+	struct leases_t *l, *tmp;
+
+	HASH_ITER(hh, state->leases, l, tmp) {
+		free(l->ethernet);
+		free(l->ends);
+		free(l->starts);
+		free(l->hostname);
+		HASH_DEL(state->leases, l);
+		free(l);
+	}
+}
+#else
+void delete_all_leases(struct conf_t *state)
+{
+	while (state->leases) {
+		struct leases_t *l;
+
+		l = state->leases;
+		free(l->ethernet);
+		free(l->ends);
+		free(l->starts);
+		free(l->hostname);
+		HASH_DEL(state->leases, l);	/* leases advances to next on delete */
+		free(l);
+	}
+}
+#endif

src/mustach-dhcpd-pools.c

@@ -0,0 +1,519 @@
+/*
+ * The dhcpd-pools has BSD 2-clause license which also known as "Simplified
+ * BSD License" or "FreeBSD License".
+ *
+ * Copyright 2006- Sami Kerola. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *    1. Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the
+ *       distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of Sami Kerola.
+ */
+
+/*! \file mustach-dhcpd-pools.c
+ * \brief Mustache templating specific functions.
+ */
+
+#include <config.h>
+
+#include <fcntl.h>
+#include <errno.h>
+#include <error.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include "close-stream.h"
+#include "dhcpd-pools.h"
+#include "error.h"
+#include "mustach.h"
+#include "xalloc.h"
+
+/*! \struct expl
+ * \brief A structure that travels through mustach via closure void pointer.
+ */
+struct expl {
+	struct conf_t *state;
+	struct leases_t *lease_p;
+	struct range_t *range_p;
+	struct shared_network_t *shnet_p;
+	struct output_helper_t oh;
+	int current;
+	uint32_t pad;
+};
+
+static int must_enter(void *closure, const char *name);
+static int must_leave(void *closure);
+
+/*!  \brief Template base level tag parser and printer. */
+static int must_put_base(void *closure, const char *name, int escape
+			 __attribute__ ((unused)), FILE *file)
+{
+	struct expl *e = closure;
+
+	if (!strcmp(name, "localtime")) {
+		dp_time_tool(file, NULL, 0);
+		return 0;
+	}
+	if (!strcmp(name, "number_of_ranges")) {
+		fprintf(file, "%u", e->state->num_ranges);
+		return 0;
+	}
+	if (!strcmp(name, "number_of_ranges_warning")) {
+		struct status_counts_t stat = { 0 };
+
+		range_alarms(e->state, &stat);
+		fprintf(file, "%u", stat.warning);
+		return 0;
+	}
+	if (!strcmp(name, "number_of_ranges_critical")) {
+		struct status_counts_t stat = { 0 };
+
+		range_alarms(e->state, &stat);
+		fprintf(file, "%u", stat.critical);
+		return 0;
+	}
+	if (!strcmp(name, "number_of_shared_networks")) {
+		uint32_t num = 0;
+		struct shared_network_t *shared_p;
+
+		for (shared_p = e->state->shared_net_root->next; shared_p;
+		     shared_p = shared_p->next) {
+			num++;
+		}
+		fprintf(file, "%u", num);
+		return 0;
+	}
+	if (!strcmp(name, "number_of_shared_networks_warning")) {
+		struct status_counts_t stat = { 0 };
+
+		shared_net_alarms(e->state, &stat);
+		fprintf(file, "%u", stat.warning);
+		return 0;
+	}
+	if (!strcmp(name, "number_of_shared_networks_critical")) {
+		struct status_counts_t stat = { 0 };
+
+		shared_net_alarms(e->state, &stat);
+		fprintf(file, "%u", stat.critical);
+		return 0;
+	}
+	if (!strcmp(name, "version")) {
+		fprintf(file, "%s", PACKAGE_VERSION);
+		return 0;
+	}
+	/* lease file */
+	if (!strcmp(name, "lease_file_path")) {
+		fprintf(file, "%s", e->state->dhcpdlease_file);
+		return 0;
+	}
+	if (!strcmp(name, "lease_file_local_mtime")) {
+		dp_time_tool(file, e->state->dhcpdlease_file, 0);
+		return 0;
+	}
+	if (!strcmp(name, "lease_file_epoch_mtime")) {
+		dp_time_tool(file, e->state->dhcpdlease_file, 1);
+		return 0;
+	}
+	/* conf file */
+	if (!strcmp(name, "conf_file_path")) {
+		fprintf(file, "%s", e->state->dhcpdconf_file);
+		return 0;
+	}
+	if (!strcmp(name, "conf_file_local_mtime")) {
+		dp_time_tool(file, e->state->dhcpdconf_file, 0);
+		return 0;
+	}
+	if (!strcmp(name, "conf_file_epoch_mtime")) {
+		dp_time_tool(file, e->state->dhcpdconf_file, 1);
+		return 0;
+	}
+	/* template file */
+	if (!strcmp(name, "template_file_path")) {
+		fprintf(file, "%s", e->state->mustach_template);
+		return 0;
+	}
+	if (!strcmp(name, "template_file_local_mtime")) {
+		dp_time_tool(file, e->state->mustach_template, 0);
+		return 0;
+	}
+	if (!strcmp(name, "template_file_epoch_mtime")) {
+		dp_time_tool(file, e->state->mustach_template, 1);
+		return 0;
+	}
+	error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: unexpected tag: %s", name);
+	return 1;
+}
+
+/*! \struct mustach_itf
+ * \brief Mustach function pointers. */
+static struct mustach_itf itf = {
+	.start = NULL,
+	.enter = must_enter,
+	.put = must_put_base,
+	.next = NULL,
+	.leave = must_leave
+};
+
+/*!  \brief Mustach active lease aka {{#active_lease}} tag parser and printer. */
+static int must_put_active_lease(void *closure, const char *name, int escape
+				 __attribute__((unused)), FILE *file)
+{
+	struct expl *e = closure;
+
+	if (!strcmp(name, "ip")) {
+		fprintf(file, "%s", ntop_ipaddr(&e->lease_p->ip));
+		return 0;
+	}
+	if (!strcmp(name, "macaddress")) {
+		fprintf(file, "%s", e->lease_p->ethernet);
+		return 0;
+	}
+	error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: unexpected tag: %s", name);
+	return 1;
+}
+
+/*!  \brief A function to move to next lease when {{/active_lease}} is encountered. */
+static int must_next_active_lease(void *closure)
+{
+	struct expl *e = closure;
+
+	e->lease_p = e->lease_p->hh.next;
+	if (e->lease_p == NULL)
+		return 0;
+	return 1;
+}
+
+
+/*!  \brief Mustach range aka {{#subnets}} tag parser and printer. */
+static int must_put_range(void *closure, const char *name, int escape
+			  __attribute__ ((unused)), FILE *file)
+{
+	struct expl *e = closure;
+
+	if (!strcmp(name, "location")) {
+		fprintf(file, "%s", e->range_p->shared_net->name);
+		return 0;
+	}
+	if (!strcmp(name, "range")) {
+		fprintf(file, "%s - ", ntop_ipaddr(&e->range_p->first_ip));
+		fprintf(file, "%s", ntop_ipaddr(&e->range_p->last_ip));
+		return 0;
+	}
+	if (!strcmp(name, "first_ip")) {
+		fprintf(file, "%s", ntop_ipaddr(&e->range_p->first_ip));
+		return 0;
+	}
+	if (!strcmp(name, "last_ip")) {
+		fprintf(file, "%s", ntop_ipaddr(&e->range_p->last_ip));
+		return 0;
+	}
+	if (!strcmp(name, "used")) {
+		fprintf(file, "%g", e->range_p->count);
+		return 0;
+	}
+	if (!strcmp(name, "touched")) {
+		fprintf(file, "%g", e->range_p->touched);
+		return 0;
+	}
+	if (!strcmp(name, "defined")) {
+		fprintf(file, "%g", e->oh.range_size);
+		return 0;
+	}
+	if (!strcmp(name, "free")) {
+		fprintf(file, "%g", e->oh.range_size - e->range_p->count);
+		return 0;
+	}
+	if (!strcmp(name, "percent")) {
+		fprintf(file, "%g", e->oh.percent);
+		return 0;
+	}
+	if (!strcmp(name, "touch_count")) {
+		fprintf(file, "%g", e->oh.tc);
+		return 0;
+	}
+	if (!strcmp(name, "touch_percent")) {
+		fprintf(file, "%g", e->oh.tcp);
+		return 0;
+	}
+	if (e->state->backups_found == 1) {
+		if (!strcmp(name, "backup_count")) {
+			fprintf(file, "%g", e->range_p->backups);
+			return 0;
+		}
+		if (!strcmp(name, "backup_percent")) {
+			fprintf(file, "%g", e->oh.bup);
+			return 0;
+		}
+	}
+	if (!strcmp(name, "status")) {
+		fprintf(file, "%d", e->oh.status);
+		return 0;
+	}
+	if (!strcmp(name, "gettimeofday")) {
+		dp_time_tool(file, NULL, 1);
+		return 0;
+	}
+	if (!strcmp(name, "lease_file_epoch_mtime")) {
+		dp_time_tool(file, e->state->dhcpdlease_file, 1);
+		return 0;
+	}
+	error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: unexpected tag: %s", name);
+	return 1;
+}
+
+/*!  \brief Mustach shared networks aka {{#shared-networks}} tag parser and printer. */
+static int must_put_shnet(void *closure, const char *name, int escape
+			  __attribute__ ((unused)), FILE *file)
+{
+	struct expl *e = closure;
+
+	if (!strcmp(name, "location")) {
+		fprintf(file, "%s", e->shnet_p->name);
+		return 0;
+	}
+	if (!strcmp(name, "defined")) {
+		fprintf(file, "%g", e->shnet_p->available);
+		return 0;
+	}
+	if (!strcmp(name, "used")) {
+		fprintf(file, "%g", e->shnet_p->used);
+		return 0;
+	}
+	if (!strcmp(name, "touched")) {
+		fprintf(file, "%g", e->shnet_p->touched);
+		return 0;
+	}
+	if (!strcmp(name, "free")) {
+		fprintf(file, "%g", e->shnet_p->available - e->shnet_p->used);
+		return 0;
+	}
+	if (!strcmp(name, "percent")) {
+		fprintf(file, "%g", e->oh.percent);
+		return 0;
+	}
+	if (!strcmp(name, "touch_count")) {
+		fprintf(file, "%g", e->oh.tc);
+		return 0;
+	}
+	if (!strcmp(name, "touch_percent")) {
+		fprintf(file, "%g", e->oh.tcp);
+		return 0;
+	}
+	if (e->state->backups_found == 1) {
+		if (!strcmp(name, "backup_count")) {
+			fprintf(file, "%g", e->shnet_p->backups);
+			return 0;
+		}
+		if (!strcmp(name, "backup_percent")) {
+			fprintf(file, "%g", e->oh.bup);
+			return 0;
+		}
+	}
+	if (!strcmp(name, "status")) {
+		fprintf(file, "%d", e->oh.status);
+		return 0;
+	}
+	if (!strcmp(name, "gettimeofday")) {
+		dp_time_tool(file, NULL, 1);
+		return 0;
+	}
+	if (!strcmp(name, "lease_file_epoch_mtime")) {
+		dp_time_tool(file, e->state->dhcpdlease_file, 1);
+		return 0;
+	}
+	error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: unexpected tag: %s", name);
+	return 1;
+}
+
+/*!  \brief A function to move to next range when {{/subnets}} is encountered. */
+static int must_next_range(void *closure)
+{
+	struct expl *e = closure;
+
+	do {
+		e->range_p++;
+		e->current--;
+		if (e->current <= 0)
+			return 0;
+	} while (range_output_helper(e->state, &e->oh, e->range_p));
+	return 1;
+}
+
+/*!  \brief A function to move to next shared network when {{/shared-networks}}
+ * is encountered.  */
+static int must_next_shnet(void *closure)
+{
+	struct expl *e = closure;
+
+	if (e->current == 1 || e->shnet_p == NULL)
+		return 0;
+	while (1) {
+		e->shnet_p = e->shnet_p->next;
+		if (e->shnet_p == NULL)
+			break;
+		if (shnet_output_helper(e->state, &e->oh, e->shnet_p))
+			continue;
+		else
+			return 1;
+	}
+	return 0;
+}
+
+/*! \brief Function that is called when mustach is searching output loops from
+ * template file.  */
+static int must_enter(void *closure, const char *name)
+{
+	struct expl *e = closure;
+
+	if (!strcmp(name, "active_lease")) {
+		itf.put = must_put_active_lease;
+		itf.next = must_next_active_lease;
+		e->current = 0;
+		e->lease_p = e->state->leases;
+		return must_next_active_lease(closure);
+	}
+	if (!strcmp(name, "subnets")) {
+		itf.put = must_put_range;
+		itf.next = must_next_range;
+		e->current = e->state->num_ranges + 1;
+		e->range_p = e->state->ranges;
+		/* must_next_range() will skip_ok when needed */
+		e->range_p--;
+		return must_next_range(closure);
+	}
+	if (!strcmp(name, "shared-networks")) {
+		itf.put = must_put_shnet;
+		itf.next = must_next_shnet;
+		e->shnet_p = e->state->shared_net_root;
+		e->current = 0;
+		return must_next_shnet(closure);
+	}
+	if (!strcmp(name, "summary")) {
+		itf.put = must_put_shnet;
+		itf.next = must_next_shnet;
+		e->shnet_p = e->state->shared_net_root;
+		e->current = 1;
+		shnet_output_helper(e->state, &e->oh, e->shnet_p);
+		return 1;
+	}
+	error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: unexpected tag: %s", name);
+	return 1;
+}
+
+/*! \brief Function that is called when all elements within a print loop are outputted. */
+static int must_leave(void *closure)
+{
+	struct expl *e = closure;
+
+	e->shnet_p = e->state->shared_net_root;
+	e->range_p = e->state->ranges;
+	itf.put = must_put_base;
+	return 0;
+}
+
+/*! \brief Read mustach template to memory. */
+static char *must_read_template(const char *filename)
+{
+	int f;
+	struct stat s;
+	char *result;
+
+	if (filename == NULL)
+		error(EXIT_FAILURE, 0, "must_read_template: --mustach argument missing");
+	if ((f = open(filename, O_RDONLY)) < 0) {
+		error(EXIT_FAILURE, errno, "must_read_template: open: %s", filename);
+	}
+	fstat(f, &s);
+	result = xmalloc(s.st_size + 1);
+	if (read(f, result, s.st_size) != s.st_size) {
+		error(EXIT_FAILURE, errno, "must_read_template: read: %s", filename);
+	}
+	close(f);
+	result[s.st_size] = 0;
+	return result;
+}
+
+/*! \brief Start mustach processing. */
+int mustach_dhcpd_pools(struct conf_t *state)
+{
+	struct expl e = { .state = state };
+	char *template;
+	FILE *outfile;
+	int ret;
+
+	template = must_read_template(state->mustach_template);
+	if (state->output_file) {
+		outfile = fopen(state->output_file, "w+");
+		if (outfile == NULL) {
+			error(EXIT_FAILURE, errno, "mustach_dhcpd_pools: fopen: %s",
+			      state->output_file);
+		}
+	} else {
+		outfile = stdout;
+	}
+	ret = fmustach(template, &itf, &e, outfile);
+	free(template);
+	if (outfile == stdout) {
+		if (fflush(stdout))
+			error(EXIT_FAILURE, errno, "mustach_dhcpd_pools: fflush");
+	} else {
+		if (close_stream(outfile))
+			error(EXIT_FAILURE, errno, "mustach_dhcpd_pools: fclose");
+	}
+	switch (ret) {
+	case MUSTACH_OK:
+		return 0;
+	case MUSTACH_ERROR_SYSTEM:
+		error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: system error");
+		break;
+	case MUSTACH_ERROR_UNEXPECTED_END:
+		error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: unexpected end");
+		break;
+	case MUSTACH_ERROR_EMPTY_TAG:
+		error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: empty tag");
+		break;
+	case MUSTACH_ERROR_TAG_TOO_LONG:
+		error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: too long tag");
+		break;
+	case MUSTACH_ERROR_BAD_SEPARATORS:
+		error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: bad separator");
+		break;
+	case MUSTACH_ERROR_TOO_DEEP:
+		error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: too deep");
+		break;
+	case MUSTACH_ERROR_CLOSING:
+		error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: closing");
+		break;
+	case MUSTACH_ERROR_BAD_UNESCAPE_TAG:
+		error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: bad escape tag");
+		break;
+	default:
+		error(EXIT_FAILURE, 0, "mustach_dhcpd_pools: fmustach: unknown error");
+	}
+	return 1;
+}

src/mustach.c

@@ -0,0 +1,325 @@
+/*
+ Author: José Bollo <jobol@nonadev.net>
+ Author: José Bollo <jose.bollo@iot.bzh>
+
+ https://gitlab.com/jobol/mustach
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     https://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#define _GNU_SOURCE
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+
+#include "mustach.h"
+
+#define NAME_LENGTH_MAX   1024
+#define DEPTH_MAX         256
+
+#if !defined(NO_OPEN_MEMSTREAM)
+static FILE *memfile_open(char **buffer, size_t *size)
+{
+	return open_memstream(buffer, size);
+}
+static void memfile_abort(FILE *file, char **buffer, size_t *size)
+{
+	fclose(file);
+	free(*buffer);
+	*buffer = NULL;
+	*size = 0;
+}
+static int memfile_close(FILE *file, char **buffer, size_t *size)
+{
+	int rc;
+
+	/* adds terminating null */
+	rc = fputc(0, file) ? MUSTACH_ERROR_SYSTEM : 0;
+	fclose(file);
+	if (rc == 0)
+		/* removes terminating null of the length */
+		(*size)--;
+	else {
+		free(*buffer);
+		*buffer = NULL;
+		*size = 0;
+	}
+	return rc;
+}
+#else
+static FILE *memfile_open(char **buffer, size_t *size)
+{
+	return tmpfile();
+}
+static void memfile_abort(FILE *file, char **buffer, size_t *size)
+{
+	fclose(file);
+	*buffer = NULL;
+	*size = 0;
+}
+static int memfile_close(FILE *file, char **buffer, size_t *size)
+{
+	int rc;
+	size_t s;
+	char *b;
+
+	s = (size_t)ftell(file);
+	b = malloc(s + 1);
+	if (b == NULL) {
+		rc = MUSTACH_ERROR_SYSTEM;
+		errno = ENOMEM;
+		s = 0;
+	} else {
+		rewind(file);
+		if (1 == fread(b, s, 1, file)) {
+			rc = 0;
+			b[s] = 0;
+		} else {
+			rc = MUSTACH_ERROR_SYSTEM;
+			free(b);
+			b = NULL;
+			s = 0;
+		}
+	}
+	*buffer = b;
+	*size = s;
+	return rc;
+}
+#endif
+
+static int getpartial(struct mustach_itf *itf, void *closure, const char *name, char **result)
+{
+	int rc;
+	FILE *file;
+	size_t size;
+
+	*result = NULL;
+	file = memfile_open(result, &size);
+	if (file == NULL)
+		rc = MUSTACH_ERROR_SYSTEM;
+	else {
+		rc = itf->put(closure, name, 0, file);
+		if (rc < 0)
+			memfile_abort(file, result, &size);
+		else
+			rc = memfile_close(file, result, &size);
+	}
+	return rc;
+}
+
+static int process(const char *template, struct mustach_itf *itf, void *closure, FILE *file, const char *opstr, const char *clstr)
+{
+	char name[NAME_LENGTH_MAX + 1], *partial, c, *tmp;
+	const char *beg, *term;
+	struct { const char *name, *again; size_t length; int emit, entered; } stack[DEPTH_MAX];
+	size_t oplen, cllen, len, l;
+	int depth, rc, emit;
+
+	emit = 1;
+	oplen = strlen(opstr);
+	cllen = strlen(clstr);
+	depth = 0;
+	for(;;) {
+		beg = strstr(template, opstr);
+		if (beg == NULL) {
+			/* no more mustach */
+			if (emit)
+				fwrite(template, strlen(template), 1, file);
+			return depth ? MUSTACH_ERROR_UNEXPECTED_END : 0;
+		}
+		if (emit)
+			fwrite(template, (size_t)(beg - template), 1, file);
+		beg += oplen;
+		term = strstr(beg, clstr);
+		if (term == NULL)
+			return MUSTACH_ERROR_UNEXPECTED_END;
+		template = term + cllen;
+		len = (size_t)(term - beg);
+		c = *beg;
+		switch(c) {
+		case '!':
+		case '=':
+			break;
+		case '{':
+			for (l = 0 ; clstr[l] == '}' ; l++);
+			if (clstr[l]) {
+				if (!len || beg[len-1] != '}')
+					return MUSTACH_ERROR_BAD_UNESCAPE_TAG;
+				len--;
+			} else {
+				if (term[l] != '}')
+					return MUSTACH_ERROR_BAD_UNESCAPE_TAG;
+				template++;
+			}
+			c = '&';
+			/*@fallthrough@*/
+		case '^':
+		case '#':
+		case '/':
+		case '&':
+		case '>':
+#if !defined(NO_EXTENSION_FOR_MUSTACH) && !defined(NO_COLON_EXTENSION_FOR_MUSTACH)
+		case ':':
+#endif
+			beg++; len--;
+		default:
+			while (len && isspace(beg[0])) { beg++; len--; }
+			while (len && isspace(beg[len-1])) len--;
+#if defined(NO_EXTENSION_FOR_MUSTACH) || defined(NO_ALLOW_EMPTY_TAG)
+			if (len == 0)
+				return MUSTACH_ERROR_EMPTY_TAG;
+#endif
+			if (len > NAME_LENGTH_MAX)
+				return MUSTACH_ERROR_TAG_TOO_LONG;
+			memcpy(name, beg, len);
+			name[len] = 0;
+			break;
+		}
+		switch(c) {
+		case '!':
+			/* comment */
+			/* nothing to do */
+			break;
+		case '=':
+			/* defines separators */
+			if (len < 5 || beg[len - 1] != '=')
+				return MUSTACH_ERROR_BAD_SEPARATORS;
+			beg++;
+			len -= 2;
+			for (l = 0; l < len && !isspace(beg[l]) ; l++);
+			if (l == len)
+				return MUSTACH_ERROR_BAD_SEPARATORS;
+			oplen = l;
+			tmp = alloca(oplen + 1);
+			memcpy(tmp, beg, oplen);
+			tmp[oplen] = 0;
+			opstr = tmp;
+			while (l < len && isspace(beg[l])) l++;
+			if (l == len)
+				return MUSTACH_ERROR_BAD_SEPARATORS;
+			cllen = len - l;
+			tmp = alloca(cllen + 1);
+			memcpy(tmp, beg + l, cllen);
+			tmp[cllen] = 0;
+			clstr = tmp;
+			break;
+		case '^':
+		case '#':
+			/* begin section */
+			if (depth == DEPTH_MAX)
+				return MUSTACH_ERROR_TOO_DEEP;
+			rc = emit;
+			if (rc) {
+				rc = itf->enter(closure, name);
+				if (rc < 0)
+					return rc;
+			}
+			stack[depth].name = beg;
+			stack[depth].again = template;
+			stack[depth].length = len;
+			stack[depth].emit = emit;
+			stack[depth].entered = rc;
+			if ((c == '#') == (rc == 0))
+				emit = 0;
+			depth++;
+			break;
+		case '/':
+			/* end section */
+			if (depth-- == 0 || len != stack[depth].length || memcmp(stack[depth].name, name, len))
+				return MUSTACH_ERROR_CLOSING;
+			rc = emit && stack[depth].entered ? itf->next(closure) : 0;
+			if (rc < 0)
+				return rc;
+			if (rc) {
+				template = stack[depth++].again;
+			} else {
+				emit = stack[depth].emit;
+				if (emit && stack[depth].entered)
+					itf->leave(closure);
+			}
+			break;
+		case '>':
+			/* partials */
+			if (emit) {
+				rc = getpartial(itf, closure, name, &partial);
+				if (rc == 0) {
+					rc = process(partial, itf, closure, file, opstr, clstr);
+					free(partial);
+				}
+				if (rc < 0)
+					return rc;
+			}
+			break;
+		default:
+			/* replacement */
+			if (emit) {
+				rc = itf->put(closure, name, c != '&', file);
+				if (rc < 0)
+					return rc;
+			}
+			break;
+		}
+	}
+}
+
+int fmustach(const char *template, struct mustach_itf *itf, void *closure, FILE *file)
+{
+	int rc = itf->start ? itf->start(closure) : 0;
+	if (rc == 0)
+		rc = process(template, itf, closure, file, "{{", "}}");
+	return rc;
+}
+
+int fdmustach(const char *template, struct mustach_itf *itf, void *closure, int fd)
+{
+	int rc;
+	FILE *file;
+
+	file = fdopen(fd, "w");
+	if (file == NULL) {
+		rc = MUSTACH_ERROR_SYSTEM;
+		errno = ENOMEM;
+	} else {
+		rc = fmustach(template, itf, closure, file);
+		fclose(file);
+	}
+	return rc;
+}
+
+int mustach(const char *template, struct mustach_itf *itf, void *closure, char **result, size_t *size)
+{
+	int rc;
+	FILE *file;
+	size_t s;
+
+	*result = NULL;
+	if (size == NULL)
+		size = &s;
+	file = memfile_open(result, size);
+	if (file == NULL)
+		rc = MUSTACH_ERROR_SYSTEM;
+	else {
+		rc = fmustach(template, itf, closure, file);
+		if (rc < 0)
+			memfile_abort(file, result, size);
+		else
+			rc = memfile_close(file, result, size);
+	}
+	return rc;
+}
+

src/mustach.h

@@ -0,0 +1,120 @@
+/*
+ Author: José Bollo <jobol@nonadev.net>
+ Author: José Bollo <jose.bollo@iot.bzh>
+
+ https://gitlab.com/jobol/mustach
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     https://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#ifndef _mustach_h_included_
+#define _mustach_h_included_
+
+/**
+ * mustach_itf - interface for callbacks
+ *
+ * All of this function should return a negative value to stop
+ * the mustache processing. The returned negative value will be
+ * then returned to the caller of mustach as is.
+ *
+ * The functions enter and next should return 0 or 1.
+ *
+ * All other functions should normally return 0. If it returns
+ * a negative value, it means an error that stop the process
+ * and that is reported to the caller.
+ *
+ * @start: Starts the mustach processing of the closure
+ *         'start' is optional (can be NULL)
+ *
+ * @put: Writes the value of 'name' to 'file' with 'escape' or not
+ *       As an extension (see NO_ALLOW_EMPTY_TAG), the 'name' can be
+ *       the empty string. In that later case an implemntation can
+ *       return MUSTACH_ERROR_EMPTY_TAG to refuse empty names.
+ *
+ * @enter: Enters the section of 'name' if possible.
+ *         Musts return 1 if entered or 0 if not entered.
+ *         When 1 is returned, the function 'leave' will always be called.
+ *         Conversely 'leave' is never called when enter returns 0 or
+ *         a negative value.
+ *         When 1 is returned, the function must activate the first
+ *         item of the section.
+ *
+ * @next: Activates the next item of the section if it exists.
+ *        Musts return 1 when the next item is activated.
+ *        Musts return 0 when there is no item to activate.
+ *
+ * @leave: Leaves the last entered section
+ */
+struct mustach_itf {
+	int (*start)(void *closure);
+	int (*put)(void *closure, const char *name, int escape, FILE *file);
+	int (*enter)(void *closure, const char *name);
+	int (*next)(void *closure);
+	int (*leave)(void *closure);
+};
+
+#define MUSTACH_OK                       0
+#define MUSTACH_ERROR_SYSTEM            -1
+#define MUSTACH_ERROR_UNEXPECTED_END    -2
+#define MUSTACH_ERROR_EMPTY_TAG         -3
+#define MUSTACH_ERROR_TAG_TOO_LONG      -4
+#define MUSTACH_ERROR_BAD_SEPARATORS    -5
+#define MUSTACH_ERROR_TOO_DEEP          -6
+#define MUSTACH_ERROR_CLOSING           -7
+#define MUSTACH_ERROR_BAD_UNESCAPE_TAG  -8
+
+/* compatibility with older bad name */
+#define MUSTACH_ERROR_TOO_DEPTH         MUSTACH_ERROR_TOO_DEEP
+
+/**
+ * fmustach - Renders the mustache 'template' in 'file' for 'itf' and 'closure'.
+ *
+ * @template: the template string to instanciate
+ * @itf:      the interface to the functions that mustach calls
+ * @closure:  the closure to pass to functions called
+ * @file:     the file where to write the result
+ *
+ * Returns 0 in case of success, -1 with errno set in case of system error
+ * a other negative value in case of error.
+ */
+extern int fmustach(const char *template, struct mustach_itf *itf, void *closure, FILE *file);
+
+/**
+ * fmustach - Renders the mustache 'template' in 'fd' for 'itf' and 'closure'.
+ *
+ * @template: the template string to instanciate
+ * @itf:      the interface to the functions that mustach calls
+ * @closure:  the closure to pass to functions called
+ * @fd:       the file descriptor number where to write the result
+ *
+ * Returns 0 in case of success, -1 with errno set in case of system error
+ * a other negative value in case of error.
+ */
+extern int fdmustach(const char *template, struct mustach_itf *itf, void *closure, int fd);
+
+/**
+ * fmustach - Renders the mustache 'template' in 'result' for 'itf' and 'closure'.
+ *
+ * @template: the template string to instanciate
+ * @itf:      the interface to the functions that mustach calls
+ * @closure:  the closure to pass to functions called
+ * @result:   the pointer receiving the result when 0 is returned
+ * @size:     the size of the returned result
+ *
+ * Returns 0 in case of success, -1 with errno set in case of system error
+ * a other negative value in case of error.
+ */
+extern int mustach(const char *template, struct mustach_itf *itf, void *closure, char **result, size_t *size);
+
+#endif
+

src/other.c

@@ -1,174 +1,659 @@
 /*
-** Copyright (C) 2006- Sami Kerola <kerolasa@iki.fi>
+ * The dhcpd-pools has BSD 2-clause license which also known as "Simplified
-**  
+ * BSD License" or "FreeBSD License".
-** This program is free software; you can redistribute it and/or modify
+ *
-** it under the terms of the GNU General Public License as published by
+ * Copyright 2006- Sami Kerola. All rights reserved.
-** the Free Software Foundation; either version 2 of the License, or
+ *
-** (at your option) any later version.
+ * Redistribution and use in source and binary forms, with or without
-** 
+ * modification, are permitted provided that the following conditions are
-** This program is distributed in the hope that it will be useful,
+ * met:
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    1. Redistributions of source code must retain the above copyright
-** GNU General Public License for more details.
+ *       notice, this list of conditions and the following disclaimer.
-** 
+ *
-** You should have received a copy of the GNU General Public License
+ *    2. Redistributions in binary form must reproduce the above copyright
-** along with this program; if not, write to the Free Software 
+ *       notice, this list of conditions and the following disclaimer in the
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *       documentation and/or other materials provided with the
-*/
+ *       distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of Sami Kerola.
+ */
+
+/*! \file other.c
+ * \brief Collection of various functions.
+ */
 
-#ifdef HAVE_CONFIG_H
 #include <config.h>
-#endif
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <limits.h>
+#include <netinet/in.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "error.h"
+#include "progname.h"
+#include "quote.h"
+#include "xalloc.h"
 
 #include "dhcpd-pools.h"
 
-#include <stdio.h>
+static char *(*cidr_last) (union ipaddr_t *restrict addr, const int mask);
-#ifdef  HAVE_STDLIB_H
+static char *cidr_last_v4(union ipaddr_t *restrict addr, const int mask);
-#include <stdlib.h>
+static char *cidr_last_v6(union ipaddr_t *restrict addr, const int mask);
-#else				/* Not STDC_HEADERS */
-extern void exit();
-extern char *malloc();
-#endif				/* STDC_HEADERS */
-#include <errno.h>
-#include <stdarg.h>
-#ifdef  HAVE_STRING_H
-#include <string.h>
-#else
-#include <strings.h>
-#endif
 
-/* Simple memory allocation wrapper */
+/*! \brief Set function pointers depending on IP version.
-void *safe_malloc(size_t size)
+ * \param ip IP version.
-{
-	void *ret = malloc(size);
-	if (ret == NULL) {
-		eprintf("safe_malloc: malloc: ");
-		exit(EXIT_FAILURE);
-	}
-	return ret;
-}
-
-/* Copyright (C) 1999 Lucent Technologies
- * Excerpted from 'The Practice of Programming'
- * by Brian W. Kernighan and Rob Pike
- * slight modifications by Sami Kerola.
- * eprintf: print error message and exit */
-void eprintf(char *fmt, ...)
-{
-	va_list args;
-
-	fflush(stdout);
-	fprintf(stderr, "%s: ", program_name);
-
-	va_start(args, fmt);
-	vfprintf(stderr, fmt, args);
-	va_end(args);
-
-	if (fmt[0] != '\0' && fmt[strlen(fmt) - 1] == ':')
-		fprintf(stderr, " %s", strerror(errno));
-	/* Should be safe, after all dhcpd-pools has only one
-	 * thread. */
-	errno = 0;
-
-	fprintf(stderr, "\n");
-	fflush(stderr);
-}
-
-void flip_ranges(struct range_t *ranges, struct range_t *tmp_ranges)
-{
-	unsigned int i = num_ranges - 1, j;
-
-	for (j = 0; j < num_ranges; j++) {
-		*(tmp_ranges + j) = *(ranges + i);
-		i--;
-	}
-
-	memcpy(ranges, tmp_ranges, num_ranges * sizeof(struct range_t));
-}
-
-
-/* Free memory, flush buffers etc */
-void clean_up(void)
-{
-	int ret;
-	if (errno) {
-		eprintf
-		    ("clean_up: errno (%d) set but not checked in correct place; if this is repeatable send strace output as a bug report:",
-		     errno);
-	}
-	/* Just in case there something in buffers */
-	ret = fflush(stdout);
-	if (errno || ret) {
-		eprintf("clean_up: stdout:");
-	}
-	ret = fflush(stderr);
-	if (errno || ret) {
-		eprintf("clean_up: stderr:");
-	}
-	free(config.dhcpdconf_file);
-	free(config.dhcpdlease_file);
-	free(config.output_file);
-	free(ranges);
-	free(shared_net_names);
-	free(shared_networks);
-}
-
-void print_version(void)
-{
-	fprintf(stdout, "%s\n", PACKAGE_STRING);
-	fprintf(stdout,
-		"Written by Sami Kerola.\nXML support by Dominic Germain, Sogetel inc.\n\n");
-	fprintf(stdout,
-		"License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n");
-	fprintf(stdout,
-		"This is free software: you are free to change and redistribute it.\n");
-	fprintf(stdout,
-		"There is NO WARRANTY, to the extent permitted by law.\n");
-}
-
-void usage(int status)
-{
-	FILE *out;
-	out = status != 0 ? stderr : stdout;
-
-	fprintf(out, "\
-Usage: %s [OPTIONS]\n", program_name);
-	fprintf(out, "\
-This is ISC dhcpd pools usage analyzer.\n\
-\n");
-	fprintf(out, "\
-  -c --config   file    path to the dhcpd.conf file\n\
-  -l --leases   file    path to the dhcpd.leases file\n\
-  -f --format   [thcxX]   output format\n");
-	fprintf(out, "\
-                          t for text\n\
-                          h for html table\n\
-                          H for full html page\n\
-                          x for xml\n\
-                          X for xml with active lease details\n\
-                          c for comma separated values\n");
-/* TODO
-                        s for snmp\n");
  */
-	fprintf(out, "\
+void set_ipv_functions(struct conf_t *state, int version)
-  -s --sort [nimcptTe]  sort ranges by\n\
+{
-                          n name\n\
+	switch (version) {
-                          i IP\n\
-                          m maxium\n\
-                          c current\n\
-                          p percent\n\
-                          t touched\n\
-                          T t+c\n\
-                          e t+c perc\n");
-	fprintf(out, "\
-  -r --reverse		reverse order sort\n\
-  -o --output   file    output into a file\n\
-  -L --limit    nr      output limit mask 77 - 00\n\
-  -v --version          version information\n\
-  -h --help             this screen\n\
-\n\
-Report bugs to <%s>\n\
-Homepage: %s\n", PACKAGE_BUGREPORT, PACKAGE_URL);
 
-        exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
+	case IPv4:
+		state->ip_version = version;
+		add_lease = add_lease_v4;
+		copy_ipaddr = copy_ipaddr_v4;
+		find_lease = find_lease_v4;
+		get_range_size = get_range_size_v4;
+		ipcomp = ipcomp_v4;
+		leasecomp = leasecomp_v4;
+		ntop_ipaddr = ntop_ipaddr_v4;
+		parse_ipaddr = parse_ipaddr_v4;
+		cidr_last = cidr_last_v4;
+		xstrstr = xstrstr_v4;
+		break;
+
+	case IPv6:
+		state->ip_version = version;
+		add_lease = add_lease_v6;
+		copy_ipaddr = copy_ipaddr_v6;
+		find_lease = find_lease_v6;
+		get_range_size = get_range_size_v6;
+		ipcomp = ipcomp_v6;
+		leasecomp = leasecomp_v6;
+		ntop_ipaddr = ntop_ipaddr_v6;
+		parse_ipaddr = parse_ipaddr_v6;
+		cidr_last = cidr_last_v6;
+		xstrstr = xstrstr_v6;
+		break;
+
+	case IPvUNKNOWN:
+		state->ip_version = version;
+		add_lease = add_lease_init;
+		copy_ipaddr = copy_ipaddr_init;
+		find_lease = find_lease_init;
+		get_range_size = get_range_size_init;
+		ipcomp = ipcomp_init;
+		leasecomp = leasecomp_init;
+		ntop_ipaddr = ntop_ipaddr_init;
+		parse_ipaddr = parse_ipaddr_init;
+		cidr_last = NULL;
+		xstrstr = xstrstr_init;
+		break;
+
+	default:
+		abort();
+
+	}
+	return;
+}
+
+/*! \brief Convert text string IP address from either IPv4 or IPv6 to an integer.
+ * \param src An IP string in either format.
+ * \param dst An union which will hold conversion result.
+ * \return Was parsing successful.
+ */
+int parse_ipaddr_init(struct conf_t *state, const char *restrict src, union ipaddr_t *restrict dst)
+{
+	struct in_addr addr;
+	struct in6_addr addr6;
+
+	if (inet_aton(src, &addr) == 1)
+		set_ipv_functions(state, IPv4);
+	else if (inet_pton(AF_INET6, src, &addr6) == 1)
+		set_ipv_functions(state, IPv6);
+	else
+		return 0;
+	return parse_ipaddr(state, src, dst);
+}
+
+int parse_ipaddr_v4(struct conf_t *state
+		    __attribute__ ((unused)), const char *restrict src,
+		    union ipaddr_t *restrict dst)
+{
+	int rv;
+	struct in_addr addr;
+
+	rv = inet_aton(src, &addr);
+	dst->v4 = ntohl(addr.s_addr);
+	return rv == 1;
+}
+
+int parse_ipaddr_v6(struct conf_t *state
+		    __attribute__ ((unused)), const char *restrict src,
+		    union ipaddr_t *restrict dst)
+{
+	int rv;
+	struct in6_addr addr;
+
+	rv = inet_pton(AF_INET6, src, &addr);
+	memcpy(&dst->v6, addr.s6_addr, sizeof(addr.s6_addr));
+	return rv == 1;
+}
+
+/*! \brief Convert string to a desimal format network marks.
+ * \param src Digit that should be a network mask.
+ * \return Network mask, or -1 when failing.
+ */
+static int strtol_mask(const char *str)
+{
+	long num;
+	char *end = NULL;
+
+	errno = 0;
+	if (str == NULL || *str == '\0')
+		goto err;
+	num = strtol(str, &end, 10);
+
+	if (errno || str == end || (end && *end))
+		goto err;
+	if (num < 0 || 128 < num)
+		goto err;
+	return (int)num;
+ err:
+	return -1;
+}
+
+/*! \brief Find last address in IPv4 range by using cidr format.
+ * \param addr Pointer to memory where address needs to be stored.
+ * \return Allocated string format of the address.
+ */
+static char *cidr_last_v4(union ipaddr_t *restrict addr, const int mask)
+{
+	union ipaddr_t last_ip;
+	uint32_t netmask;
+	const char *ip;
+
+	if (mask)
+		netmask = (1U << (32 - mask)) - 1;
+	else
+		netmask = 0;
+	last_ip.v4 = addr->v4 | netmask;
+
+	ip = ntop_ipaddr(&last_ip);
+	return xstrdup(ip);
+}
+
+/*! \brief Find last address in IPv6 range by using cidr format.
+ * \param addr Pointer to memory where address needs to be stored.
+ * \return Allocated string format of the address.
+ */
+static char *cidr_last_v6(union ipaddr_t *restrict addr, const int mask)
+{
+	union ipaddr_t bitmask;
+	int i, j;
+	char ip[128];
+
+	memset(&bitmask, 0x0, sizeof(bitmask));
+	for (i = mask, j = 0; i > 0; i -= 8, j++) {
+		if (i >= 8)
+			bitmask.v6[j] = 0xff;
+		else
+			bitmask.v6[j] = (unsigned char)(0xffU << (8 - i));
+	}
+	for (i = 0; i < (int)sizeof(bitmask); i++)
+		addr->v6[i] |= ~bitmask.v6[i];
+	inet_ntop(AF_INET6, addr, ip, sizeof(ip));
+	return xstrdup(ip);
+}
+
+/*! \brief Convert a cidr notated address to a range.
+ * \param range_p Pointer to memory where addresses need to be stored.
+ * \param word A range as a cidr string.
+ */
+void parse_cidr(struct conf_t *state, struct range_t *range_p, const char *word)
+{
+	char *divider;
+	int mask;
+	union ipaddr_t addr;
+	char *last;
+
+	/* determine cidr */
+	divider = strchr(word, '/');
+	*divider++ = '\0';
+	mask = strtol_mask(divider);
+	if (mask < 0)
+		error(EXIT_FAILURE, 0, "cidr %s invalid mask %s", word, divider);
+	if (state->ip_version == IPvUNKNOWN) {
+		if (!strchr(word, ':'))
+			set_ipv_functions(state, IPv4);
+		else
+			set_ipv_functions(state, IPv6);
+	}
+
+	/* start of the range is easy */
+	parse_ipaddr(state, word, &addr);
+	copy_ipaddr(&range_p->first_ip, &addr);
+
+	/* end of the range depends cidr size */
+	last = cidr_last(&addr, mask);
+	parse_ipaddr(state, last, &addr);
+	copy_ipaddr(&range_p->last_ip, &addr);
+	free(last);
+}
+
+/*! \brief Copy IP address to union.
+ *
+ * \param dst Destination for a binary IP address.
+ * \param src Sourse of an IP address. */
+void copy_ipaddr_init(union ipaddr_t *restrict dst __attribute__ ((unused)),
+		      const union ipaddr_t *restrict src __attribute__ ((unused)))
+{
+}
+
+void copy_ipaddr_v4(union ipaddr_t *restrict dst, const union ipaddr_t *restrict src)
+{
+	dst->v4 = src->v4;
+}
+
+void copy_ipaddr_v6(union ipaddr_t *restrict dst, const union ipaddr_t *restrict src)
+{
+	memcpy(&dst->v6, &src->v6, sizeof(src->v6));
+}
+
+/*! \brief Convert an address to string. This function will convert the
+ * IPv4 addresses to 123.45.65.78 format, and the IPv6 addresses to it's
+ * native format depending on which version of the addressing is found to
+ * be in use.
+ *
+ * \param ip Binary IP address.
+ * \return Printable address.
+ */
+const char *ntop_ipaddr_init(const union ipaddr_t *ip __attribute__ ((unused)))
+{
+	static char buffer = '\0';
+
+	return &buffer;
+}
+
+const char *ntop_ipaddr_v4(const union ipaddr_t *ip)
+{
+	static char buffer[INET_ADDRSTRLEN];
+	struct in_addr addr;
+
+	addr.s_addr = htonl(ip->v4);
+	return inet_ntop(AF_INET, &addr, buffer, sizeof(buffer));
+}
+
+const char *ntop_ipaddr_v6(const union ipaddr_t *ip)
+{
+	static char buffer[INET6_ADDRSTRLEN];
+	struct in6_addr addr;
+
+	memcpy(addr.s6_addr, ip->v6, sizeof(addr.s6_addr));
+	return inet_ntop(AF_INET6, &addr, buffer, sizeof(buffer));
+}
+
+/*! \brief Calculate how many addresses there are in a range.
+ *
+ * \param r Pointer to range structure, which has information about first
+ * and last IP in the range.
+ * \return Size of a range.
+ */
+double get_range_size_init(const struct range_t *r __attribute__ ((unused)))
+{
+	return 0;
+}
+
+double get_range_size_v4(const struct range_t *r)
+{
+	return r->last_ip.v4 - r->first_ip.v4 + 1;
+}
+
+double get_range_size_v6(const struct range_t *r)
+{
+	double size = 0;
+	int i;
+
+	/* When calculating the size of an IPv6 range overflow may occur.
+	 * In that case only the last LONG_BIT bits are preserved, thus
+	 * we just skip the first (16 - LONG_BIT) bits...  */
+	for (i = 0; i < 16; i++) {
+		size *= 256;
+		size += (int)r->last_ip.v6[i] - (int)r->first_ip.v6[i];
+	}
+	return size + 1;
+}
+
+/*! \fn xstrstr_init(const char *restrict str)
+ * \brief Determine if the dhcpd is in IPv4 or IPv6 mode. This function
+ * may be needed when dhcpd.conf file has zero IP version hints.
+ *
+ * \param str A line from dhcpd.conf
+ * \return prefix_t enum value
+ */
+int xstrstr_init(struct conf_t *state, const char *restrict str)
+{
+	if (!memcmp("lease ", str, 6)) {
+		set_ipv_functions(state, IPv4);
+		return PREFIX_LEASE;
+	}
+	if (!memcmp("  iaaddr ", str, 9)) {
+		set_ipv_functions(state, IPv6);
+		return PREFIX_LEASE;
+	}
+	return NUM_OF_PREFIX;
+}
+
+/*! \fn xstrstr_v4(const char *restrict str)
+ * \brief parse lease file in IPv4 mode
+ *
+ * \param str A line from dhcpd.conf
+ * \return prefix_t enum value
+ */
+int
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+    __attribute__ ((hot))
+#endif
+    xstrstr_v4(struct conf_t *state __attribute__ ((unused)), const char *restrict str)
+{
+	size_t len;
+
+	if (str[2] == 'b' || str[2] == 'h')
+		len = strlen(str);
+	else
+		len = 0;
+	if (15 < len) {
+		switch (str[16]) {
+		case 'f':
+			if (!memcmp("  binding state free;", str, 21))
+				return PREFIX_BINDING_STATE_FREE;
+			break;
+		case 'a':
+			if (!memcmp("  binding state active;", str, 23))
+				return PREFIX_BINDING_STATE_ACTIVE;
+			if (!memcmp("  binding state abandoned;", str, 25))
+				return PREFIX_BINDING_STATE_ABANDONED;
+			break;
+		case 'e':
+			if (!memcmp("  binding state expired;", str, 24))
+				return PREFIX_BINDING_STATE_EXPIRED;
+			break;
+		case 'r':
+			if (!memcmp("  binding state released;", str, 25))
+				return PREFIX_BINDING_STATE_RELEASED;
+			break;
+		case 'b':
+			if (!memcmp("  binding state backup;", str, 23))
+				return PREFIX_BINDING_STATE_BACKUP;
+			break;
+		case 'n':
+			if (!memcmp("  hardware ethernet", str, 19))
+				return PREFIX_HARDWARE_ETHERNET;
+			break;
+		default:
+			break;
+		}
+	}
+	if (!memcmp("lease ", str, 6))
+		return PREFIX_LEASE;
+	else if (!memcmp("  starts ", str, 9))
+		return PREFIX_STARTS;
+	else if (!memcmp("  ends ", str, 7))
+		return PREFIX_ENDS;
+	else if (!memcmp("  client-hostname ", str, 18))
+		return PREFIX_HOSTNAME;
+	return NUM_OF_PREFIX;
+}
+
+/*! \fn xstrstr_v4(const char *restrict str)
+ * \brief parse lease file in IPv6 mode
+ *
+ * \param str A line from dhcpd.conf
+ * \return prefix_t enum value
+ */
+int
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+    __attribute__ ((hot))
+#endif
+    xstrstr_v6(struct conf_t *state __attribute__ ((unused)), const char *restrict str)
+{
+	size_t len;
+
+	if (str[4] == 'b' || str[2] == 'h')
+		len = strlen(str);
+	else
+		len = 0;
+	if (17 < len) {
+		switch (str[18]) {
+		case 'f':
+			if (!memcmp("    binding state free;", str, 23))
+				return PREFIX_BINDING_STATE_FREE;
+			break;
+		case 'a':
+			if (!memcmp("    binding state active;", str, 25))
+				return PREFIX_BINDING_STATE_ACTIVE;
+			if (!memcmp("    binding state abandoned;", str, 27))
+				return PREFIX_BINDING_STATE_ABANDONED;
+			break;
+		case 'e':
+			if (!memcmp("    binding state expired;", str, 26))
+				return PREFIX_BINDING_STATE_EXPIRED;
+			break;
+		case 'r':
+			if (!memcmp("    binding state released;", str, 27))
+				return PREFIX_BINDING_STATE_RELEASED;
+			break;
+		case 'b':
+			if (!memcmp("    binding state backup;", str, 25))
+				return PREFIX_BINDING_STATE_BACKUP;
+			break;
+		case 'n':
+			if (!memcmp("  hardware ethernet", str, 19))
+				return PREFIX_HARDWARE_ETHERNET;
+			break;
+		default:
+			break;
+		}
+	}
+	if (!memcmp("  iaaddr ", str, 9))
+		return PREFIX_LEASE;
+	else if (!memcmp("  starts ", str, 9))
+		return PREFIX_STARTS;
+	else if (!memcmp("  ends ", str, 7))
+		return PREFIX_ENDS;
+	else if (!memcmp("  client-hostname ", str, 18))
+		return PREFIX_HOSTNAME;
+	return NUM_OF_PREFIX;
+}
+
+/*! \brief Parse option argument color mode.
+ *
+ * \param Color mode string.
+ * \return color mode enum.
+ */
+int parse_color_mode(const char *restrict arg)
+{
+	if (!strcmp(arg, "always"))
+		return color_on;
+	if (!strcmp(arg, "auto"))
+		return color_auto;
+	if (!strcmp(arg, "never"))
+		return color_off;
+	return color_unknown;
+}
+
+/*! \brief Return a double floating point value.
+ *
+ * \param str String to be converted to a double.
+ * \param errmesg Exit error message if conversion fails.
+ * \return Binary result of string to double conversion.
+ */
+double strtod_or_err(const char *restrict str, const char *restrict errmesg)
+{
+	double num;
+	char *end = NULL;
+
+	if (str == NULL || *str == '\0')
+		goto err;
+	errno = 0;
+	num = strtod(str, &end);
+	if (errno || str == end || (end && *end))
+		goto err;
+	return num;
+ err:
+	error(EXIT_FAILURE, errno, "%s: %s", errmesg, quote(str));
+	return 0;
+}
+
+/*! \brief Reverse range.
+ * Used before output, if a caller has requested reverse sorting. */
+void flip_ranges(struct conf_t *state)
+{
+	unsigned int i = state->num_ranges - 1, j;
+	struct range_t *tmp_ranges;
+
+	tmp_ranges = xmalloc(sizeof(struct range_t) * state->num_ranges);
+	for (j = 0; j < state->num_ranges; j++, i--)
+		*(tmp_ranges + j) = *(state->ranges + i);
+	memcpy(state->ranges, tmp_ranges, state->num_ranges * sizeof(struct range_t));
+	free(tmp_ranges);
+}
+
+/*! \brief Free memory, flush buffers etc. */
+void clean_up(struct conf_t *state)
+{
+	struct output_sort *cur, *next;
+	struct shared_network_t *c, *n;
+
+	/* Just in case there something in buffers */
+	if (fflush(NULL))
+		error(EXIT_FAILURE, errno, "clean_up: fflush");
+	free(state->ranges);
+	delete_all_leases(state);
+	for (cur = state->sorts; cur; cur = next) {
+		next = cur->next;
+		free(cur);
+	}
+	for (c = state->shared_net_root; c; c = n) {
+		n = c->next;
+		free(c->name);
+		free(c);
+	}
+}
+
+/*! \brief Print a time stamp of a path or now to output file. */
+void dp_time_tool(FILE *file, const char *path, const int epoch)
+{
+	struct stat st;
+
+	if (path)
+		stat(path, &st);
+	else
+		clock_gettime(CLOCK_REALTIME, &st.st_mtim);
+	if (epoch)
+		fprintf(file, "%ld", st.st_mtim.tv_sec);
+	else {
+		char time_stamp[64];
+		const time_t mtime = st.st_mtim.tv_sec;
+		struct tm tm;
+
+		localtime_r(&mtime, &tm);
+		strftime(time_stamp, sizeof(time_stamp), "%FT%T%z", &tm);
+		fprintf(file, "%s", time_stamp);
+	}
+}
+
+/*! \brief A version printing. */
+void __attribute__ ((__noreturn__)) print_version(void)
+{
+#define stringify(s) #s
+#define stringify_value(s) stringify(s)
+	fprintf(stdout, "%s\n"
+		"Original design and maintainer Sami Kerola.\n"
+		"uthash %s by Troy D. Hanson.\n"
+		"XML support by Dominic Germain, Sogetel inc.\n"
+		"IPv6 support by Cheer Xiao.\n"
+		"Mustach templating support by Jose Bollo.\n"
+		"  The dhcpd-pools is FreeBSD Licensed,\n"
+		"  uthash uses BSD license,\n"
+		"  gnulib parts are mostly GPL,\n"
+		"  and mustache uses Apache License.\n", PACKAGE_STRING,
+		stringify_value(UTHASH_VERSION));
+	exit(EXIT_SUCCESS);
+}
+
+/*! \brief Command line help screen. */
+void __attribute__ ((__noreturn__)) usage(int status)
+{
+	FILE *out = status == EXIT_SUCCESS ? stdout : stderr;
+
+	fprintf(out,	"Usage: %s [OPTIONS]\n", program_name);
+	fputs(		"\n", out);
+	fputs(		"This is ISC dhcpd pools usage analyzer.\n", out);
+	fputs(		"\n", out);
+	fputs(		"  -c, --config=FILE      path to the dhcpd.conf file\n", out);
+	fputs(		"  -l, --leases=FILE      path to the dhcpd.leases file\n", out);
+	fputs(		"  -f, --format=[thHcxXjJ] output format\n", out);
+	fputs(		"                           t for text\n", out);
+	fputs(		"                           H for full html page\n", out);
+	fputs(		"                           x for xml\n", out);
+	fputs(		"                           X for xml with active lease details\n", out);
+	fputs(		"                           j for json\n", out);
+	fputs(		"                           J for json with active lease details\n", out);
+	fputs(		"                           c for comma separated values\n", out);
+#ifdef BUILD_MUSTACH
+	fputs(		"      --mustach=FILE     output using mustach template file\n", out);
+#endif
+	fputs(		"  -s, --sort=[nimcptTe]  sort ranges by\n", out);
+	fputs(		"                           n name\n", out);
+	fputs(		"                           i IP\n", out);
+	fputs(		"                           m maximum\n", out);
+	fputs(		"                           c current\n", out);
+	fputs(		"                           p percent\n", out);
+	fputs(		"                           t touched\n", out);
+	fputs(		"                           T t+c\n", out);
+	fputs(		"                           e t+c perc\n", out);
+	fputs(		"  -r, --reverse          reverse order sort\n", out);
+	fputs(		"  -o, --output=FILE      output into a file\n", out);
+	fputs(		"  -L, --limit=NR         output limit mask 77 - 00\n", out);
+	fputs(		"      --color=WHEN       use colors 'always', 'never', or 'auto'\n", out);
+	fputs(		"      --warning=PERC     set warning alarming threshold\n", out);
+	fputs(		"      --critical=PERC    set critical alarming threshold\n", out);
+	fputs(		"      --skip=WHAT        do not print threshold 'ok', 'warning', 'critical',\n", out);
+	fputs(		"                           'minsize', or 'suppressed'\n", out);
+	fputs(		"      --warn-count=NR    a number of free leases before warning raised\n", out);
+	fputs(		"      --crit-count=NR    a number of free leases before critical raised\n", out);
+	fputs(		"      --minsize=size     disable alarms for small ranges and shared-nets\n", out);
+	fputs(		"      --snet-alarms      suppress range alarms that are part of a shared-net\n", out);
+	fputs(		"  -p, --perfdata         print additional perfdata in alarming mode\n", out);
+	fputs(		"  -A, --all-as-shared    treat single subnets as shared-network with CIDR as their name\n", out);
+	fputs(          "      --ip-version=4|6   force analysis to use either IPv4 or IPv6 functions\n", out);
+	fputs(		"  -v, --version          output version information and exit\n", out);
+	fputs(		"  -h, --help             display this help and exit\n", out);
+	fputs(		"\n", out);
+	fprintf(out,	"Report bugs to <%s>\n", PACKAGE_BUGREPORT);
+	fprintf(out,	"Homepage: %s\n", PACKAGE_URL);
+
+	exit(status);
 }

src/sort.c

@@ -1,200 +1,326 @@
 /*
-** Copyright (C) 2006- Sami Kerola <kerolasa@iki.fi>
+ * The dhcpd-pools has BSD 2-clause license which also known as "Simplified
-**  
+ * BSD License" or "FreeBSD License".
-** This program is free software; you can redistribute it and/or modify
+ *
-** it under the terms of the GNU General Public License as published by
+ * Copyright 2006- Sami Kerola. All rights reserved.
-** the Free Software Foundation; either version 2 of the License, or
+ * Copyright 2012 Cheer Xiao.
-** (at your option) any later version.
+ *
-** 
+ * Redistribution and use in source and binary forms, with or without
-** This program is distributed in the hope that it will be useful,
+ * modification, are permitted provided that the following conditions are
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * met:
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
-** GNU General Public License for more details.
+ *    1. Redistributions of source code must retain the above copyright
-** 
+ *       notice, this list of conditions and the following disclaimer.
-** You should have received a copy of the GNU General Public License
+ *
-** along with this program; if not, write to the Free Software 
+ *    2. Redistributions in binary form must reproduce the above copyright
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *       notice, this list of conditions and the following disclaimer in the
-*/
+ *       documentation and/or other materials provided with the
+ *       distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of Sami Kerola.
+ */
+
+/*! \file sort.c
+ * \brief Functions to sort output.
+ */
 
-#ifdef HAVE_CONFIG_H
 #include <config.h>
-#endif
 
+#include <math.h>
+#include <stdint.h>
 #include <stdlib.h>
-#include <stdio.h>
 #include <string.h>
 
+#include "error.h"
+#include "progname.h"
+#include "quote.h"
+#include "xalloc.h"
+
 #include "dhcpd-pools.h"
-#include "defaults.h"
 
-/* Sort functions for range sorting */
+/*! \brief Compare IP address, with IPv4/v6 determination.
-int intcomp(const void *x, const void *y)
+ * \param a Binary IP address.
+ * \param b Binary IP address.
+ * \return If a < b return -1, if a < b return 1, when they are equal return 0.
+ */
+int ipcomp_init(const union ipaddr_t *restrict a __attribute__ ((unused)),
+		const union ipaddr_t *restrict b __attribute__ ((unused)))
 {
-	if (*(unsigned long int *) x < *(unsigned long int *) y)
+	return 0;
+}
+
+int ipcomp_v4(const union ipaddr_t *restrict a, const union ipaddr_t *restrict b)
+{
+	if (a->v4 < b->v4)
 		return -1;
-	else if (*(unsigned long int *) y < *(unsigned long int *) x)
+	if (a->v4 > b->v4)
 		return 1;
-	else
+	return 0;
-		return 0;
 }
 
-int rangecomp(const void *r1, const void *r2)
+int ipcomp_v6(const union ipaddr_t *restrict a, const union ipaddr_t *restrict b)
 {
-	if ((((struct range_t *) r1)->first_ip) <
+	return memcmp(&a->v6, &b->v6, sizeof(a->v6));
-	    (((struct range_t *) r2)->first_ip))
+}
+
+/*! \brief Compare IP address in leases_t structure, with IPv4/v6 determination.
+ * \param a Binary IP address.
+ * \param b Binary IP address.
+ * \return If a < b return -1, if a < b return 1, when they are equal return 0.
+ */
+int leasecomp_init(const struct leases_t *restrict a __attribute__ ((unused)),
+		   const struct leases_t *restrict b __attribute__ ((unused)))
+{
+	return 0;
+}
+
+int leasecomp_v4(const struct leases_t *restrict a, const struct leases_t *restrict b)
+{
+	if (a->ip.v4 < b->ip.v4)
 		return -1;
-	else if ((((struct range_t *) r2)->first_ip) <
+	if (a->ip.v4 > b->ip.v4)
-		 (((struct range_t *) r1)->first_ip))
 		return 1;
-	else
+	return 0;
-		return 0;
 }
 
-unsigned long int ret_ip(struct range_t r)
+int leasecomp_v6(const struct leases_t *restrict a, const struct leases_t *restrict b)
 {
-	return (r.first_ip);
+	return memcmp(&a->ip.v6, &b->ip.v6, sizeof(a->ip.v6));
 }
 
-unsigned long int ret_cur(struct range_t r)
+/*! \brief Compare IP address in leases. Suitable for sorting range table.
+ * \param r1 A range structure.
+ * \param r2 A range structure.
+ * \return Return pas through from ipcomp.
+ */
+int rangecomp(const void *restrict r1, const void *restrict r2)
 {
-	return (r.count);
+	return ipcomp(&((const struct range_t *)r1)->first_ip,
+		      &((const struct range_t *)r2)->first_ip);
 }
 
-unsigned long int ret_max(struct range_t r)
+/*! \brief Compare two doubles.
+ * \param f1,f2 Data to compare.
+ * \return Like strcmp.
+ */
+int comp_double(double f1, double f2)
 {
-	return (r.last_ip - r.first_ip);
+        if (isless(f1, f2))
+                return -1;
+        else if (isless(f2, f1))
+                return 1;
+        return 0;
 }
 
-unsigned long int ret_percent(struct range_t r)
+
+/*! \brief Compare two range_t by their first_ip.
+ * \param r1,r2 Pointers to data to compare.
+ * \return Like strcmp.
+ */
+int comp_ip(struct range_t *r1, struct range_t *r2)
 {
-	float f;
+	return ipcomp(&r1->first_ip, &r2->first_ip);
-	f = (float) r.count / (r.last_ip - r.first_ip - 1);
-	return ((unsigned long int) (f * 100000));
 }
 
-unsigned long int ret_touched(struct range_t r)
+/*! \brief Compare two range_t by their capacity.
+ * \param r1,r2 Pointers to data to compare.
+ * \return Like strcmp.
+ */
+int comp_max(struct range_t *r1, struct range_t *r2)
 {
-	return (r.touched);
+	return comp_double(get_range_size(r1), get_range_size(r2));
 }
 
-unsigned long int ret_tc(struct range_t r)
+/*! \brief Compare two range_t by their current usage.
+ * \param r1,r2 Pointers to data to compare.
+ * \return Like strcmp.
+ */
+int comp_cur(struct range_t *r1, struct range_t *r2)
+{
+	return comp_double(r1->count, r2->count);
+}
+
+/*! \brief Compare two range_t by their current usage percentage.
+ * \param r1,r2 Pointers to data to compare.
+ * \return Like strcmp.
+ */
+int comp_percent(struct range_t *r1, struct range_t *r2)
+{
+	return comp_double(ret_percent(*r1), ret_percent(*r2));
+}
+
+/*! \brief Compare two range_t by their touched addresses.
+ * \param r1,r2 Pointers to data to compare.
+ * \return Like strcmp.
+ */
+int comp_touched(struct range_t *r1, struct range_t *r2)
+{
+	return comp_double(r1->touched, r2->touched);
+}
+
+/*! \brief Compare two range_t by their touched and in use addresses.
+ * \param r1,r2 Pointers to data to compare.
+ * \return Like strcmp.
+ */
+int comp_tc(struct range_t *r1, struct range_t *r2)
+{
+	return comp_double(ret_tc(*r1), ret_tc(*r2));
+}
+
+/*! \brief Compare two range_t by their touched and in use percentage.
+ * \param r1,r2 Pointers to data to compare.
+ * \return Like strcmp.
+ */
+int comp_tcperc(struct range_t *r1, struct range_t *r2)
+{
+	return comp_double(ret_tcperc(*r1), ret_tcperc(*r2));
+}
+
+/*! \brief Percentage in use in range.
+ * \param r A range structure.
+ * \return Usage percentage of the given range.
+ */
+double ret_percent(struct range_t r)
+{
+	return r.count / get_range_size(&r);
+}
+
+/*! \brief Touched and in use in range
+ * \param r A range structure.
+ * \return Number of touched or in use addresses in the given range.
+ */
+double ret_tc(struct range_t r)
 {
 	return (r.count + r.touched);
 }
 
-unsigned long int ret_tcperc(struct range_t r)
+/*! \brief Return percentage of addresses touched and in use in range.
+ * \param r A range structure.
+ * \return Percentage of touched or in use addresses in the given range.
+ */
+double ret_tcperc(struct range_t r)
 {
-	float f;
+	return ret_tc(r) / get_range_size(&r);
-	f = (float) (r.count + r.touched) / (r.last_ip - r.first_ip - 1);
-	return ((unsigned long int) (f * 10000));
 }
 
-void field_selector(char c)
+/*! \brief Sort field selector.
+ * \param c Symbolic name of a sort by character.
+ * The sort algorithms are stabile, which means multiple sorts can be
+ * specified and they do not mess the result of previous sort.  The sort
+ * algorithms are used via function pointer, that gets to be reassigned.
+ * \return Return the selected compare function.
+ */
+comparer_t field_selector(char c)
 {
 	switch (c) {
 	case 'n':
-		break;
+		return NULL;
 	case 'i':
-		returner = ret_ip;
+		return comp_ip;
-		break;
 	case 'm':
-		returner = ret_max;
+		return comp_max;
-		break;
 	case 'c':
-		returner = ret_cur;
+		return comp_cur;
-		break;
 	case 'p':
-		returner = ret_percent;
+		return comp_percent;
-		break;
 	case 't':
-		returner = ret_touched;
+		return comp_touched;
-		break;
 	case 'T':
-		returner = ret_tc;
+		return comp_tc;
-		break;
 	case 'e':
-		returner = ret_tcperc;
+		return comp_tcperc;
-		break;
 	default:
-		eprintf("field_selector: unknown sort order: %c",
+		{
-			config.sort[0]);
+			char str[2] = { c, '\0' };
-		usage(EXIT_FAILURE);
+			error(EXIT_FAILURE, 0, "field_selector: unknown sort order: %s",
+			      quote(str));
+		}
 	}
+	return NULL;
 }
 
-/* Needed to support multiple key sorting. */
+/*! \brief Perform requested sorting.
-int get_order(struct range_t *left, struct range_t *right)
+ * \param left The left side of the merge sort.
+ * \param right The right side of the merge sort.
+ * \return Relevant for merge sort decision.
+ */
+static int merge(struct conf_t *state, struct range_t *restrict left, struct range_t *restrict right)
 {
-	int i, len, ret;
+	struct output_sort *p;
-	unsigned long int lint, rint;
+	int ret;
 
-	len = strlen(config.sort);
+	for (p = state->sorts; p; p = p->next) {
-	for (i = 0; i < len; i++) {
+		if (p->func == NULL) {
-		/* Handling strings is case of it's own */
+			/* String sorting is special. */
-		if (config.sort[i] == 'n') {
+			ret = strcmp(left->shared_net->name, right->shared_net->name);
-			ret =
+		} else {
-			    strcmp(left->shared_net->name,
+			/* Range sorts are common. */
-				   right->shared_net->name);
+			ret = p->func(left, right);
-			if (ret > 0) {
-				return (0);
-			} else if (ret < 0) {
-				return (1);
-			} else {
-				continue;
-			}
 		}
-
+		if (0 < ret)
-		/* Select which function is pointed by returner */
+			return (0);
-		field_selector(config.sort[i]);
+		if (ret < 0)
-		lint = returner(*left);
-		rint = returner(*right);
-		/* If fields are equal use next sort method */
-		if (lint == rint) {
-			continue;
-		}
-		if (lint < rint) {
 			return (1);
-		}
-		return (0);
 	}
-
+	/* this is reached if nothing was sorted */
-	/* If all returners where equal */
 	return (0);
 }
 
-void mergesort_ranges(struct range_t *orig, int size, struct range_t *temp)
+/*! \brief Mergesort for range table.
+ */
+void mergesort_ranges(struct conf_t *state, struct range_t *restrict orig, unsigned int size,
+		      struct range_t *restrict temp, const int root_call)
 {
-	int left, right, i;
+	unsigned int left, i, u_right;
 	struct range_t hold;
+	/* Merge sort split size */
+	static const unsigned int MIN_MERGE_SIZE = 8;
+
+	if (temp == NULL)
+		temp = xmalloc(sizeof(struct range_t) * size);
 
 	if (size < MIN_MERGE_SIZE) {
 		for (left = 0; left < size; left++) {
+			int s_right;
+
 			hold = *(orig + left);
-			for (right = left - 1; right >= 0; right--) {
+			for (s_right = left - 1; 0 <= s_right; s_right--) {
-				if (get_order((orig + right), &hold)) {
+				if (merge(state, (orig + s_right), &hold))
 					break;
-				}
+				*(orig + s_right + 1) = *(orig + s_right);
-				*(orig + right + 1) = *(orig + right);
 			}
-			*(orig + right + 1) = hold;
+			*(orig + s_right + 1) = hold;
 		}
+		if (root_call)
+			free(temp);
 		return;
 	}
-
+	mergesort_ranges(state, orig, size / 2, temp, 0);
-	mergesort_ranges(orig, size / 2, temp);
+	mergesort_ranges(state, orig + size / 2, size - size / 2, temp, 0);
-	mergesort_ranges(orig + size / 2, size - size / 2, temp);
-
 	left = 0;
-	right = size / 2;
+	u_right = size / 2;
 	i = 0;
-
+	while (left < size / 2 && u_right < size) {
-	while (left < size / 2 && right < size) {
+		if (merge(state, (orig + left), (orig + u_right))) {
-		if (get_order((orig + left), (orig + right))) {
 			*(temp + i) = *(orig + left);
 			left++;
 		} else {
-			*(temp + i) = *(orig + right);
+			*(temp + i) = *(orig + u_right);
-			right++;
+			u_right++;
 		}
 		i++;
 	}
@@ -203,11 +329,13 @@ void mergesort_ranges(struct range_t *orig, int size, struct range_t *temp)
 		left++;
 		i++;
 	}
-	while (right < size) {
+	while (u_right < size) {
-		*(temp + i) = *(orig + right);
+		*(temp + i) = *(orig + u_right);
-		right++;
+		u_right++;
 		i++;
 	}
-
 	memcpy(orig, temp, size * sizeof(struct range_t));
+
+	if (root_call)
+		free(temp);
 }

tests/Makemodule.am

@@ -0,0 +1,59 @@
+TESTS = \
+	tests/alarm-count-option \
+	tests/alarm-critical \
+	tests/alarm-critical-ranges \
+	tests/alarm-critical-snets \
+	tests/alarm-ignore \
+	tests/alarm-ok \
+	tests/alarm-shared-ok \
+	tests/alarm-warning \
+	tests/alarm-warning-ranges \
+	tests/alarm-warning-snets \
+	tests/shnet-alarm \
+	tests/big-small \
+	tests/binding-states \
+	tests/bootp \
+	tests/cidr-v4 \
+	tests/cidr-v6 \
+	tests/complete \
+	tests/complete-perfdata \
+	tests/empty \
+	tests/errors \
+	tests/full-json \
+	tests/full-xml \
+	tests/formats \
+	tests/leading0 \
+	tests/one-ip \
+	tests/one-line \
+	tests/parser \
+	tests/range4 \
+	tests/range6 \
+	tests/same-twice \
+	tests/shufled \
+	tests/simple \
+	tests/skip \
+	tests/sorts \
+	tests/statuses \
+	tests/v6 \
+	tests/v6-perfdata
+
+if ENABLE_MUSTACH
+TESTS += \
+	tests/mustach
+endif
+
+EXTRA_DIST += \
+	tests/confs \
+	tests/expected \
+	tests/leases \
+	tests/test.sh \
+	$(TESTS)
+
+TESTS_ENVIRONMENT = top_srcdir=$(top_srcdir) PATH=$(top_builddir)$(PATH_SEPARATOR)$$PATH
+
+check-local: $(SHELL) $(top_srcdir)/tests/test.sh
+
+clean-local-tests:
+	rm -rf $(top_builddir)/tests/outputs
+
+CLEAN_LOCALS += clean-local-tests

tests/alarm-count-option

@@ -0,0 +1,44 @@
+#!/bin/sh
+#
+# Alarm warning both ranges and shared networks.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+echo '== warn count ==' > tests/outputs/$IAM
+dhcpd-pools --config $top_srcdir/tests/confs/complete --leases $top_srcdir/tests/leases/complete \
+	--color=never --warning=40 --warn-count=20 --output=tests/outputs/$IAM-too
+echo $? >> tests/outputs/$IAM-too
+cat tests/outputs/$IAM-too >> tests/outputs/$IAM
+
+echo '== crit count ==' >> tests/outputs/$IAM
+dhcpd-pools --config $top_srcdir/tests/confs/complete --leases $top_srcdir/tests/leases/complete \
+	--color=never --critical=40 --crit-count=20 --output=tests/outputs/$IAM-too
+echo $? >> tests/outputs/$IAM-too
+cat tests/outputs/$IAM-too >> tests/outputs/$IAM
+
+echo '== minsize ==' >> tests/outputs/$IAM
+dhcpd-pools -c $top_srcdir/tests/confs/complete -l $top_srcdir/tests/leases/complete \
+	--color=never --warning=40 --warn-count=20 --minsize=40 -o tests/outputs/$IAM-too
+echo $? >> tests/outputs/$IAM-too
+cat tests/outputs/$IAM-too >> tests/outputs/$IAM
+
+echo '== snet alarms ==' >> tests/outputs/$IAM
+dhcpd-pools -c $top_srcdir/tests/confs/complete -l $top_srcdir/tests/leases/complete \
+	--color=never --warning=40 --snet-alarms -o tests/outputs/$IAM-too
+echo $? >> tests/outputs/$IAM-too
+cat tests/outputs/$IAM-too >> tests/outputs/$IAM
+
+echo '== shared net count alarms ==' >> tests/outputs/$IAM
+dhcpd-pools -c $top_srcdir/tests/confs/complete -l $top_srcdir/tests/leases/complete \
+	--color=always --format t --crit-count=20 --critical=0 --warning=0 --warn-count=24 \
+	--output=tests/outputs/$IAM-too
+echo $? >> tests/outputs/$IAM-too
+cat tests/outputs/$IAM-too >> tests/outputs/$IAM
+
+rm -f tests/outputs/$IAM-too
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/alarm-critical

@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Alarm critical both ranges & shared nets.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools --critical=50 -c $top_srcdir/tests/confs/complete \
+	    -l $top_srcdir/tests/leases/complete -o tests/outputs/$IAM
+echo $? >> tests/outputs/$IAM
+
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/alarm-critical-ranges

@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Alarm critical ranges only.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools -L 11 --critical=50 -c $top_srcdir/tests/confs/complete \
+	    -l $top_srcdir/tests/leases/complete -o tests/outputs/$IAM
+echo $? >> tests/outputs/$IAM
+
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/alarm-critical-snets

@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Alarm critical shared networks only.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools -L 22 --critical=50 -c $top_srcdir/tests/confs/complete \
+	    -l $top_srcdir/tests/leases/complete -o tests/outputs/$IAM
+echo $? >> tests/outputs/$IAM
+
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/alarm-ignore

@@ -0,0 +1,15 @@
+#!/bin/sh
+#
+# Minimal regression test suite.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools --warning 1 --critical 101 --min 2 \
+	    -c $top_srcdir/tests/confs/one-ip \
+	    -l $top_srcdir/tests/leases/one-ip -o tests/outputs/$IAM
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/alarm-ok

@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Alarm warning both ranges and shared networks.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools --critical=100 -c $top_srcdir/tests/confs/complete \
+	    -l $top_srcdir/tests/leases/complete -o tests/outputs/$IAM
+echo $? >> tests/outputs/$IAM
+
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/alarm-shared-ok

@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Shared network should be OK, and critical range ignored.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools -L 66 --critical=54 -c $top_srcdir/tests/confs/complete \
+	    -l $top_srcdir/tests/leases/complete -o tests/outputs/$IAM
+echo $? >> tests/outputs/$IAM
+
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/alarm-warning

@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Alarm warning both ranges and shared networks.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools --warning=50 -c $top_srcdir/tests/confs/complete \
+	    -l $top_srcdir/tests/leases/complete -o tests/outputs/$IAM
+echo $? >> tests/outputs/$IAM
+
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/alarm-warning-ranges

@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Alarm warning ranges only.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools -L 11 --warning=50 -c $top_srcdir/tests/confs/complete \
+	    -l $top_srcdir/tests/leases/complete -o tests/outputs/$IAM
+echo $? >> tests/outputs/$IAM
+
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/alarm-warning-snets

@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Alarm warning shared networks only.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools -L 22 --warning=50 -c $top_srcdir/tests/confs/complete \
+	    -l $top_srcdir/tests/leases/complete -o tests/outputs/$IAM
+echo $? >> tests/outputs/$IAM
+
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/big-small

@@ -0,0 +1 @@
+test.sh

tests/binding-states

@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# Minimal regression test suite.
+
+IAM=$(basename $0)
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools -c $top_srcdir/tests/confs/$IAM --color=never \
+	    -l $top_srcdir/tests/leases/$IAM -o tests/outputs/$IAM
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/bootp

@@ -0,0 +1 @@
+test.sh

tests/cidr-v4

@@ -0,0 +1 @@
+test.sh

tests/cidr-v6

@@ -0,0 +1 @@
+test.sh

tests/complete

@@ -0,0 +1 @@
+test.sh

tests/complete-perfdata

@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Minimal regression test suite.
+
+IAM=$(basename $0)
+TESTDATA=${IAM%-*}
+
+if [ ! -d tests/outputs ]; then
+	mkdir tests/outputs
+fi
+
+dhcpd-pools -c $top_srcdir/tests/confs/$TESTDATA \
+	    -l $top_srcdir/tests/leases/$TESTDATA -o tests/outputs/$IAM \
+	    --warning 80 --perfdata
+diff -u $top_srcdir/tests/expected/$IAM tests/outputs/$IAM
+exit $?

tests/confs/big-small

@@ -0,0 +1,5 @@
+subnet 10.0.0.0  netmask 255.255.255.0 {
+	pool {
+		range 10.0.0.10 10.0.0.1;
+	}
+}

tests/confs/binding-states

@@ -0,0 +1 @@
+complete

tests/confs/bootp

@@ -0,0 +1,5 @@
+subnet 10.0.0.0  netmask 255.255.255.0 {
+	pool {
+		range dynamic-bootp 10.0.0.1 10.0.0.10;
+	}
+}

tests/confs/cidr-v4

@@ -0,0 +1,31 @@
+shared-network example1 {
+	subnet 10.0.0.0  netmask 255.255.255.0 {
+		pool {
+			range 10.0.0.1/27;
+		}
+	}
+	subnet 10.1.0.0  netmask 255.255.255.0 {
+		pool {
+			range 10.1.0.1/27;
+		}
+	}
+}
+
+shared-network example2 {
+	subnet 10.2.0.0  netmask 255.255.255.0 {
+		pool {
+			range 10.2.0.1/27;
+		}
+	}
+	subnet 10.3.0.0  netmask 255.255.255.0 {
+		pool {
+			range 10.3.0.1/27;
+		}
+	}
+}
+
+subnet 10.4.0.0  netmask 255.255.255.0 {
+	pool {
+		range 10.4.0.1/28;
+	}
+}

tests/confs/cidr-v6

@@ -0,0 +1,10 @@
+subnet6 dead:abba:1000::/56 {
+        range6 dead:abba:1000::2/120;
+        prefix6 dead:abba:1000:0100:: dead:abba:1000:ff00::/56;
+}
+
+subnet6 dead:abba:40ff::/56 {
+        range6 dead:abba:4000::2/120;
+        prefix6 dead:abba:4000:0100:: dead:abba:4000:ff00::/56;
+}
+