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/*
* Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
/*
* Simple getopt_long() and getopt_long_only() excerciser.
* ENVIRONMENT:
* LONG_ONLY : use getopt_long_only() (default is getopt_long())
* POSIXLY_CORRECT : don't permute args
*/
int
main(int argc, char **argv)
{
int ch, idx, goggles;
int (*gl)(int, char * const *, const char *, const struct option *, int *);
struct option longopts[] = {
{ "force", no_argument, 0, 0 },
{ "fast", no_argument, 0, '1' },
{ "best", no_argument, 0, '9' },
{ "input", required_argument, 0, 'i' },
{ "illiterate", no_argument, 0, 0 },
{ "drinking", required_argument, &goggles, 42 },
{ "help", no_argument, 0, 'h' },
{ 0, 0, 0, 0 },
};
if (getenv("LONG_ONLY")) {
gl = getopt_long_only;
printf("getopt_long_only");
} else {
gl = getopt_long;
printf("getopt_long");
}
if (getenv("POSIXLY_CORRECT"))
printf(" (POSIXLY_CORRECT)");
printf(": ");
for (idx = 1; idx < argc; idx++)
printf("%s ", argv[idx]);
printf("\n");
goggles = 0;
for (;;) {
idx = -1;
ch = gl(argc, argv, "19bf:i:hW;", longopts, &idx);
if (ch == -1)
break;
switch (ch) {
case 0:
case '1':
case '9':
case 'h':
if (idx != -1) {
if (goggles == 42)
printf("option %s, arg %s\n",
longopts[idx].name, optarg);
else
printf("option %s\n",
longopts[idx].name);
} else
printf("option %c\n", ch);
break;
case 'f':
case 'i':
if (idx != -1)
printf("option %s, arg %s\n",
longopts[idx].name, optarg);
else
printf("option %c, arg %s\n", ch, optarg);
break;
case '?':
break;
default:
printf("unexpected return value: %c\n", ch);
break;
}
}
argc -= optind;
argv += optind;
if (argc > 0) {
printf("remaining ARGV: ");
while (argc--)
printf("%s ", *argv++);
printf("\n");
}
printf("\n");
exit (0);
}
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