/* getopt_long and getopt_long_only entry points for GNU getopt.   Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98     Free Software Foundation, Inc.   This file is part of the GNU C Library.    The GNU C Library is free software; you can redistribute it and/or   modify it under the terms of the GNU Lesser General Public   License as published by the Free Software Foundation; either   version 2.1 of the License, or (at your option) any later version.    The GNU C Library 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   Lesser General Public License for more details.    You should have received a copy of the GNU Lesser General Public   License along with the GNU C Library; if not, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#ifdef HAVE_CONFIG_H#include <config.h>#endif #include "getopt.h" #if !defined __STDC__ || !__STDC__/* This is a separate conditional since some stdc systems   reject `defined (const)'.  */#ifndef const#define const#endif#endif #include <stdio.h> /* Comment out all this code if we are using the GNU C Library, and are not   actually compiling the library itself.  This code is part of the GNU C   Library, but also included in many other GNU distributions.  Compiling   and linking in this code is a waste when using the GNU C library   (especially if it is a shared library).  Rather than having every GNU   program understand `configure --with-gnu-libc' and omit the object files,   it is simpler to just do this in the source for each such file.  */ #define GETOPT_INTERFACE_VERSION 2#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2#include <gnu-versions.h>#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION#define ELIDE_CODE#endif#endif #ifndef ELIDE_CODE /* This needs to come after some library #include   to get __GNU_LIBRARY__ defined.  */#ifdef __GNU_LIBRARY__#include <stdlib.h>#endif #ifndef	NULL#define NULL 0#endif intgetopt_long(argc, argv, options, long_options, opt_index)int argc;char *const *argv;const char *options;const struct option *long_options;int *opt_index;{    return _getopt_internal(argc, argv, options, long_options, opt_index, 0);} /* Like getopt_long, but '-' as well as '--' can indicate a long option.   If an option that starts with '-' (not '--') doesn't match a long option,   but does match a short option, it is parsed as a short option   instead.  */ intgetopt_long_only(argc, argv, options, long_options, opt_index)int argc;char *const *argv;const char *options;const struct option *long_options;int *opt_index;{    return _getopt_internal(argc, argv, options, long_options, opt_index, 1);} #endif /* Not ELIDE_CODE.  */#ifdef TEST #include <stdio.h> intmain(argc, argv)int argc;char **argv;{    int c;    int digit_optind = 0;     while (1) {        int this_option_optind = optind ? optind : 1;        int option_index = 0;         static struct option long_options[] = {            {"add", 1, 0, 0},            {"append", 0, 0, 0},            {"delete", 1, 0, 0},            {"verbose", 0, 0, 0},            {"create", 0, 0, 0},            {"file", 1, 0, 0},            {0, 0, 0, 0}        };         c = getopt_long(argc, argv, "abc:d:0123456789", long_options, &option_index);        if (c == -1)            break;         switch (c) {        case 0:            printf("option %s", long_options[option_index].name);            if (optarg)                printf(" with arg %s", optarg);            printf("\n");            break;         case '0':        case '1':        case '2':        case '3':        case '4':        case '5':        case '6':        case '7':        case '8':        case '9':            if (digit_optind != 0 && digit_optind != this_option_optind)                printf("digits occur in two different argv-elements.\n");            digit_optind = this_option_optind;            printf("option %c\n", c);            break;         case 'a':            printf("option a\n");            break;         case 'b':            printf("option b\n");            break;         case 'c':            printf("option c with value `%s'\n", optarg);            break;         case 'd':            printf("option d with value `%s'\n", optarg);            break;         case '?':            break;         default:            printf("?? getopt returned character code 0%o ??\n", c);        }    }     if (optind < argc) {        printf("non-option ARGV-elements: ");        while (optind < argc)            printf("%s ", argv[optind++]);        printf("\n");    }     exit(0);} #endif /* TEST */