Import from release candidate 2.13.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2025-12-17 16:26:59 +00:00 · 2011-01-21 18:15:50 +01:00 · 2011-01-21 18:15:50 +01:00 · 74aef1c34e
commit 74aef1c34e
38 changed files with 15998 additions and 0 deletions
--- a/src/other.c
+++ b/src/other.c
@ -0,0 +1,174 @@
+/*
+** 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.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "dhcpd-pools.h"
+
+#include <stdio.h>
+#ifdef  HAVE_STDLIB_H
+#include <stdlib.h>
+#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 */
+void *safe_malloc(size_t size)
+{
+	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, "\
+  -s --sort [nimcptTe]  sort ranges by\n\
+                          n name\n\
+                          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);
+}