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/* GNU TalkFilters - common command line parsing code
Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of GNU Talkfilters
GNU Talkfilters 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.
GNU Talkfilters is distributed in the hope that it will be amusing,
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 GNU Talkfilters; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdlib.h>
#include <stddef.h>
#include <stdio.h>
#include "getopt.h"
#define HELP_OPTION 0
#define VERSION_OPTION 1
static const struct option options[] = { { "help", 0, NULL, 0 },
{ "version", 0, NULL, 0 },
{ NULL, 0, NULL, 0 } };
void parse_args(int argc, char **argv, char *help, char *version)
{
int c, option_index;
while((c = getopt_long(argc, argv, "", options, &option_index)) != EOF)
{
switch(c)
{
case 0:
if(option_index == HELP_OPTION)
fprintf(stderr, help, *argv);
else if(option_index == VERSION_OPTION)
{
fputs(version, stderr);
fputc('\n', stderr);
}
exit(EXIT_SUCCESS);
break;
default:
fprintf(stderr, help, *argv);
exit(EXIT_FAILURE);
break;
}
}
}
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