gnulib: add gnulib modules

Some systems, such as freebsd, does not have program_invocation_short_name
available.  There are also problems finding AF_INET{,6} definitions.

CC: Peter Fraser <p_fraser@hotmail.com>
Reported-by: Ryan Steinmetz <zi@freebsd.org>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>

src/dhcpd-pools.c

@@ -51,6 +51,7 @@
 #include "closeout.h"
 #include "defaults.h"
 #include "dhcpd-pools.h"
+#include "progname.h"
 #include "xalloc.h"
 
 /*! \brief Start of execution.  Parse options, and call other other
@@ -92,6 +93,7 @@ int main(int argc, char **argv)
 	};
 
 	atexit(close_stdout);
+	set_program_name(argv[0]);
 
 	/* FIXME: These allocations should be fully dynamic, e.g., grow
 	 * if needed.  */
@@ -199,7 +201,7 @@ int main(int argc, char **argv)
 		default:
 			errx(EXIT_FAILURE,
 			     "Try `%s --help' for more information.",
-			     program_invocation_short_name);
+			     program_name);
 		}
 	}
 

src/other.c

@@ -41,9 +41,12 @@
 
 #include "dhcpd-pools.h"
 #include "defaults.h"
+#include "progname.h"
 
+#include <arpa/inet.h>
 #include <err.h>
 #include <errno.h>
+#include <netinet/in.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdio.h>
@@ -282,7 +285,7 @@ void __attribute__ ((__noreturn__)) usage(int status)
 	fprintf(out, "\
 Usage: %s [OPTIONS]\n\n\
 This is ISC dhcpd pools usage analyzer.\n\
-\n", program_invocation_short_name);
+\n", program_name);
 	fprintf(out, "\
   -c, --config=FILE      path to the dhcpd.conf file\n\
   -l, --leases=FILE      path to the dhcpd.leases file\n");

src/output.c

@@ -53,6 +53,7 @@
 
 #include "close-stream.h"
 #include "dhcpd-pools.h"
+#include "progname.h"
 #include "strftime.h"
 
 /*! \brief Text output format, which is the default.
@@ -1063,11 +1064,11 @@ int output_alarming(void)
 	if (0 < rc || 0 < sc) {
 		ret_val = 2;
 		fprintf(outfile, "CRITICAL: %s: ",
-			program_invocation_short_name);
+			program_name);
 	} else if (0 < rw || 0 < sw) {
 		ret_val = 1;
 		fprintf(outfile, "WARNING: %s: ",
-			program_invocation_short_name);
+			program_name);
 	} else {
 		ret_val = 0;
 		fprintf(outfile, "OK: ");

src/sort.c

@@ -47,6 +47,7 @@
 #include <string.h>
 
 #include "dhcpd-pools.h"
+#include "progname.h"
 
 /*! \brief Compare IP address, with IPv4/v6 determination.
  * \param a Binary IP address.
@@ -216,7 +217,7 @@ comparer_t field_selector(char c)
 	default:
 		warnx("field_selector: unknown sort order `%c'", c);
 		errx(EXIT_FAILURE, "Try `%s --help' for more information.",
-		     program_invocation_short_name);
+		     program_name);
 	}
 	return NULL;
 }