/* Utility to accept --help and --version options as unobtrusively as possible.
- Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+
+ Copyright (C) 1993, 1994, 1998, 1999, 2000, 2002, 2003, 2004 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
/* Written by Jim Meyering. */
-#ifdef HAVE_CONFIG_H
-#include <config.h>
+#if HAVE_CONFIG_H
+# include <config.h>
#endif
+/* Specification. */
+#include "long-options.h"
+
+#include <stdarg.h>
#include <stdio.h>
+#include <stdlib.h>
#include <getopt.h>
-#include "long-options.h"
+
+#include "version-etc.h"
static struct option const long_options[] =
{
Be careful not to gobble up `--'. */
void
-parse_long_options (argc, argv, command_name, package, version, usage)
- int argc;
- char **argv;
- const char *command_name;
- const char *package;
- const char *version;
- void (*usage)();
+parse_long_options (int argc,
+ char **argv,
+ const char *command_name,
+ const char *package,
+ const char *version,
+ void (*usage_func) (int),
+ /* const char *author1, ...*/ ...)
{
int c;
int saved_opterr;
- int saved_optind;
saved_opterr = opterr;
- saved_optind = optind;
/* Don't print an error message for unrecognized options. */
opterr = 0;
if (argc == 2
- && (c = getopt_long (argc, argv, "+", long_options, (int *) 0)) != EOF)
+ && (c = getopt_long (argc, argv, "+", long_options, NULL)) != -1)
{
switch (c)
{
case 'h':
- (*usage) (0);
+ (*usage_func) (EXIT_SUCCESS);
case 'v':
- printf ("%s (%s) %s\n", command_name, package, version);
- exit (0);
+ {
+ va_list authors;
+ va_start (authors, usage_func);
+ version_etc_va (stdout, command_name, package, version, authors);
+ exit (0);
+ }
default:
/* Don't process any other long-named options. */
/* Restore previous value. */
opterr = saved_opterr;
- /* Restore optind in case it has advanced past a leading `--'. */
- optind = saved_optind;
+ /* Reset this to zero so that getopt internals get initialized from
+ the probably-new parameters when/if getopt is called later. */
+ optind = 0;
}