mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-18 17:00:49 +01:00
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
/* Utility to accept --help and --version options as unobtrusively as possible.
|
|
Copyright (C) 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
/* Jim Meyering (meyering@comco.com) */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#if defined (CONFIG_BROKETS)
|
|
/* We use <config.h> instead of "config.h" so that a compilation
|
|
using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
|
|
(which it would do because it found this file in $srcdir). */
|
|
#include <config.h>
|
|
#else
|
|
#include "config.h"
|
|
#endif
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <getopt.h>
|
|
#include <sys/types.h>
|
|
#include "system.h"
|
|
#include "version.h"
|
|
#include "long-options.h"
|
|
|
|
static struct option const long_options[] =
|
|
{
|
|
{"help", no_argument, 0, 'h'},
|
|
{"version", no_argument, 0, 'v'},
|
|
{0, 0, 0, 0}
|
|
};
|
|
|
|
/* Process long options --help and --version, but only if argc == 2.
|
|
Be careful not to gobble up `--'. */
|
|
|
|
void
|
|
parse_long_options (argc, argv, usage)
|
|
int argc;
|
|
char **argv;
|
|
void (*usage)();
|
|
{
|
|
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)
|
|
{
|
|
switch (c)
|
|
{
|
|
case 'h':
|
|
usage (0);
|
|
|
|
case 'v':
|
|
printf ("%s\n", version_string);
|
|
exit (0);
|
|
|
|
default:
|
|
/* Don't process any other long-named options. */
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Restore previous value. */
|
|
opterr = saved_opterr;
|
|
|
|
/* Restore optind in case it has advanced past a leading `--'. */
|
|
optind = saved_optind;
|
|
}
|