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/*
* Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
#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':
case 'b':
case '-':
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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