diff options
Diffstat (limited to 'gl/getopt.c')
| -rw-r--r-- | gl/getopt.c | 1245 |
1 files changed, 0 insertions, 1245 deletions
diff --git a/gl/getopt.c b/gl/getopt.c deleted file mode 100644 index ef0f4ceec7..0000000000 --- a/gl/getopt.c +++ /dev/null @@ -1,1245 +0,0 @@ -/* Getopt for GNU. - NOTE: getopt is part of the C library, so if you don't know what - "Keep this file name-space clean" means, talk to drepper@gnu.org - before changing it! - Copyright (C) 1987-1996, 1998-2004, 2006, 2008-2013 Free Software - Foundation, Inc. - This file is part of the GNU C Library. - - 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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */ - -#ifndef _LIBC -# include <config.h> -#endif - -#include "getopt.h" - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#ifdef _LIBC -# include <libintl.h> -#else -# include "gettext.h" -# define _(msgid) gettext (msgid) -#endif - -#if defined _LIBC && defined USE_IN_LIBIO -# include <wchar.h> -#endif - -/* This version of 'getopt' appears to the caller like standard Unix 'getopt' - but it behaves differently for the user, since it allows the user - to intersperse the options with the other arguments. - - As 'getopt_long' works, it permutes the elements of ARGV so that, - when it is done, all the options precede everything else. Thus - all application programs are extended to handle flexible argument order. - - Using 'getopt' or setting the environment variable POSIXLY_CORRECT - disables permutation. - Then the behavior is completely standard. - - GNU application programs can use a third alternative mode in which - they can distinguish the relative order of options and other arguments. */ - -#include "getopt_int.h" - -/* For communication from 'getopt' to the caller. - When 'getopt' finds an option that takes an argument, - the argument value is returned here. - Also, when 'ordering' is RETURN_IN_ORDER, - each non-option ARGV-element is returned here. */ - -char *optarg; - -/* Index in ARGV of the next element to be scanned. - This is used for communication to and from the caller - and for communication between successive calls to 'getopt'. - - On entry to 'getopt', zero means this is the first call; initialize. - - When 'getopt' returns -1, this is the index of the first of the - non-option elements that the caller should itself scan. - - Otherwise, 'optind' communicates from one call to the next - how much of ARGV has been scanned so far. */ - -/* 1003.2 says this must be 1 before any call. */ -int optind = 1; - -/* Callers store zero here to inhibit the error message - for unrecognized options. */ - -int opterr = 1; - -/* Set to an option character which was unrecognized. - This must be initialized on some systems to avoid linking in the - system's own getopt implementation. */ - -int optopt = '?'; - -/* Keep a global copy of all internal members of getopt_data. */ - -static struct _getopt_data getopt_data; - - -#if defined HAVE_DECL_GETENV && !HAVE_DECL_GETENV -extern char *getenv (); -#endif - -#ifdef _LIBC -/* Stored original parameters. - XXX This is no good solution. We should rather copy the args so - that we can compare them later. But we must not use malloc(3). */ -extern int __libc_argc; -extern char **__libc_argv; - -/* Bash 2.0 gives us an environment variable containing flags - indicating ARGV elements that should not be considered arguments. */ - -# ifdef USE_NONOPTION_FLAGS -/* Defined in getopt_init.c */ -extern char *__getopt_nonoption_flags; -# endif - -# ifdef USE_NONOPTION_FLAGS -# define SWAP_FLAGS(ch1, ch2) \ - if (d->__nonoption_flags_len > 0) \ - { \ - char __tmp = __getopt_nonoption_flags[ch1]; \ - __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \ - __getopt_nonoption_flags[ch2] = __tmp; \ - } -# else -# define SWAP_FLAGS(ch1, ch2) -# endif -#else /* !_LIBC */ -# define SWAP_FLAGS(ch1, ch2) -#endif /* _LIBC */ - -/* Exchange two adjacent subsequences of ARGV. - One subsequence is elements [first_nonopt,last_nonopt) - which contains all the non-options that have been skipped so far. - The other is elements [last_nonopt,optind), which contains all - the options processed since those non-options were skipped. - - 'first_nonopt' and 'last_nonopt' are relocated so that they describe - the new indices of the non-options in ARGV after they are moved. */ - -static void -exchange (char **argv, struct _getopt_data *d) -{ - int bottom = d->__first_nonopt; - int middle = d->__last_nonopt; - int top = d->optind; - char *tem; - - /* Exchange the shorter segment with the far end of the longer segment. - That puts the shorter segment into the right place. - It leaves the longer segment in the right place overall, - but it consists of two parts that need to be swapped next. */ - -#if defined _LIBC && defined USE_NONOPTION_FLAGS - /* First make sure the handling of the '__getopt_nonoption_flags' - string can work normally. Our top argument must be in the range - of the string. */ - if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len) - { - /* We must extend the array. The user plays games with us and - presents new arguments. */ - char *new_str = malloc (top + 1); - if (new_str == NULL) - d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0; - else - { - memset (__mempcpy (new_str, __getopt_nonoption_flags, - d->__nonoption_flags_max_len), - '\0', top + 1 - d->__nonoption_flags_max_len); - d->__nonoption_flags_max_len = top + 1; - __getopt_nonoption_flags = new_str; - } - } -#endif - - while (top > middle && middle > bottom) - { - if (top - middle > middle - bottom) - { - /* Bottom segment is the short one. */ - int len = middle - bottom; - register int i; - - /* Swap it with the top part of the top segment. */ - for (i = 0; i < len; i++) - { - tem = argv[bottom + i]; - argv[bottom + i] = argv[top - (middle - bottom) + i]; - argv[top - (middle - bottom) + i] = tem; - SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); - } - /* Exclude the moved bottom segment from further swapping. */ - top -= len; - } - else - { - /* Top segment is the short one. */ - int len = top - middle; - register int i; - - /* Swap it with the bottom part of the bottom segment. */ - for (i = 0; i < len; i++) - { - tem = argv[bottom + i]; - argv[bottom + i] = argv[middle + i]; - argv[middle + i] = tem; - SWAP_FLAGS (bottom + i, middle + i); - } - /* Exclude the moved top segment from further swapping. */ - bottom += len; - } - } - - /* Update records for the slots the non-options now occupy. */ - - d->__first_nonopt += (d->optind - d->__last_nonopt); - d->__last_nonopt = d->optind; -} - -/* Initialize the internal data when the first call is made. */ - -static const char * -_getopt_initialize (int argc _GL_UNUSED, - char **argv _GL_UNUSED, const char *optstring, - struct _getopt_data *d, int posixly_correct) -{ - /* Start processing options with ARGV-element 1 (since ARGV-element 0 - is the program name); the sequence of previously skipped - non-option ARGV-elements is empty. */ - - d->__first_nonopt = d->__last_nonopt = d->optind; - - d->__nextchar = NULL; - - d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT"); - - /* Determine how to handle the ordering of options and nonoptions. */ - - if (optstring[0] == '-') - { - d->__ordering = RETURN_IN_ORDER; - ++optstring; - } - else if (optstring[0] == '+') - { - d->__ordering = REQUIRE_ORDER; - ++optstring; - } - else if (d->__posixly_correct) - d->__ordering = REQUIRE_ORDER; - else - d->__ordering = PERMUTE; - -#if defined _LIBC && defined USE_NONOPTION_FLAGS - if (!d->__posixly_correct - && argc == __libc_argc && argv == __libc_argv) - { - if (d->__nonoption_flags_max_len == 0) - { - if (__getopt_nonoption_flags == NULL - || __getopt_nonoption_flags[0] == '\0') - d->__nonoption_flags_max_len = -1; - else - { - const char *orig_str = __getopt_nonoption_flags; - int len = d->__nonoption_flags_max_len = strlen (orig_str); - if (d->__nonoption_flags_max_len < argc) - d->__nonoption_flags_max_len = argc; - __getopt_nonoption_flags = - (char *) malloc (d->__nonoption_flags_max_len); - if (__getopt_nonoption_flags == NULL) - d->__nonoption_flags_max_len = -1; - else - memset (__mempcpy (__getopt_nonoption_flags, orig_str, len), - '\0', d->__nonoption_flags_max_len - len); - } - } - d->__nonoption_flags_len = d->__nonoption_flags_max_len; - } - else - d->__nonoption_flags_len = 0; -#endif - - return optstring; -} - -/* Scan elements of ARGV (whose length is ARGC) for option characters - given in OPTSTRING. - - If an element of ARGV starts with '-', and is not exactly "-" or "--", - then it is an option element. The characters of this element - (aside from the initial '-') are option characters. If 'getopt' - is called repeatedly, it returns successively each of the option characters - from each of the option elements. - - If 'getopt' finds another option character, it returns that character, - updating 'optind' and 'nextchar' so that the next call to 'getopt' can - resume the scan with the following option character or ARGV-element. - - If there are no more option characters, 'getopt' returns -1. - Then 'optind' is the index in ARGV of the first ARGV-element - that is not an option. (The ARGV-elements have been permuted - so that those that are not options now come last.) - - OPTSTRING is a string containing the legitimate option characters. - If an option character is seen that is not listed in OPTSTRING, - return '?' after printing an error message. If you set 'opterr' to - zero, the error message is suppressed but we still return '?'. - - If a char in OPTSTRING is followed by a colon, that means it wants an arg, - so the following text in the same ARGV-element, or the text of the following - ARGV-element, is returned in 'optarg'. Two colons mean an option that - wants an optional arg; if there is text in the current ARGV-element, - it is returned in 'optarg', otherwise 'optarg' is set to zero. - - If OPTSTRING starts with '-' or '+', it requests different methods of - handling the non-option ARGV-elements. - See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. - - Long-named options begin with '--' instead of '-'. - Their names may be abbreviated as long as the abbreviation is unique - or is an exact match for some defined option. If they have an - argument, it follows the option name in the same ARGV-element, separated - from the option name by a '=', or else the in next ARGV-element. - When 'getopt' finds a long-named option, it returns 0 if that option's - 'flag' field is nonzero, the value of the option's 'val' field - if the 'flag' field is zero. - - The elements of ARGV aren't really const, because we permute them. - But we pretend they're const in the prototype to be compatible - with other systems. - - LONGOPTS is a vector of 'struct option' terminated by an - element containing a name which is zero. - - LONGIND returns the index in LONGOPT of the long-named option found. - It is only valid when a long-named option has been found by the most - recent call. - - If LONG_ONLY is nonzero, '-' as well as '--' can introduce - long-named options. */ - -int -_getopt_internal_r (int argc, char **argv, const char *optstring, - const struct option *longopts, int *longind, - int long_only, struct _getopt_data *d, int posixly_correct) -{ - int print_errors = d->opterr; - - if (argc < 1) - return -1; - - d->optarg = NULL; - - if (d->optind == 0 || !d->__initialized) - { - if (d->optind == 0) - d->optind = 1; /* Don't scan ARGV[0], the program name. */ - optstring = _getopt_initialize (argc, argv, optstring, d, - posixly_correct); - d->__initialized = 1; - } - else if (optstring[0] == '-' || optstring[0] == '+') - optstring++; - if (optstring[0] == ':') - print_errors = 0; - - /* Test whether ARGV[optind] points to a non-option argument. - Either it does not have option syntax, or there is an environment flag - from the shell indicating it is not an option. The later information - is only used when the used in the GNU libc. */ -#if defined _LIBC && defined USE_NONOPTION_FLAGS -# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \ - || (d->optind < d->__nonoption_flags_len \ - && __getopt_nonoption_flags[d->optind] == '1')) -#else -# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0') -#endif - - if (d->__nextchar == NULL || *d->__nextchar == '\0') - { - /* Advance to the next ARGV-element. */ - - /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been - moved back by the user (who may also have changed the arguments). */ - if (d->__last_nonopt > d->optind) - d->__last_nonopt = d->optind; - if (d->__first_nonopt > d->optind) - d->__first_nonopt = d->optind; - - if (d->__ordering == PERMUTE) - { - /* If we have just processed some options following some non-options, - exchange them so that the options come first. */ - - if (d->__first_nonopt != d->__last_nonopt - && d->__last_nonopt != d->optind) - exchange ((char **) argv, d); - else if (d->__last_nonopt != d->optind) - d->__first_nonopt = d->optind; - - /* Skip any additional non-options - and extend the range of non-options previously skipped. */ - - while (d->optind < argc && NONOPTION_P) - d->optind++; - d->__last_nonopt = d->optind; - } - - /* The special ARGV-element '--' means premature end of options. - Skip it like a null option, - then exchange with previous non-options as if it were an option, - then skip everything else like a non-option. */ - - if (d->optind != argc && !strcmp (argv[d->optind], "--")) - { - d->optind++; - - if (d->__first_nonopt != d->__last_nonopt - && d->__last_nonopt != d->optind) - exchange ((char **) argv, d); - else if (d->__first_nonopt == d->__last_nonopt) - d->__first_nonopt = d->optind; - d->__last_nonopt = argc; - - d->optind = argc; - } - - /* If we have done all the ARGV-elements, stop the scan - and back over any non-options that we skipped and permuted. */ - - if (d->optind == argc) - { - /* Set the next-arg-index to point at the non-options - that we previously skipped, so the caller will digest them. */ - if (d->__first_nonopt != d->__last_nonopt) - d->optind = d->__first_nonopt; - return -1; - } - - /* If we have come to a non-option and did not permute it, - either stop the scan or describe it to the caller and pass it by. */ - - if (NONOPTION_P) - { - if (d->__ordering == REQUIRE_ORDER) - return -1; - d->optarg = argv[d->optind++]; - return 1; - } - - /* We have found another option-ARGV-element. - Skip the initial punctuation. */ - - d->__nextchar = (argv[d->optind] + 1 - + (longopts != NULL && argv[d->optind][1] == '-')); - } - - /* Decode the current option-ARGV-element. */ - - /* Check whether the ARGV-element is a long option. - - If long_only and the ARGV-element has the form "-f", where f is - a valid short option, don't consider it an abbreviated form of - a long option that starts with f. Otherwise there would be no - way to give the -f short option. - - On the other hand, if there's a long option "fubar" and - the ARGV-element is "-fu", do consider that an abbreviation of - the long option, just like "--fu", and not "-f" with arg "u". - - This distinction seems to be the most useful approach. */ - - if (longopts != NULL - && (argv[d->optind][1] == '-' - || (long_only && (argv[d->optind][2] - || !strchr (optstring, argv[d->optind][1]))))) - { - char *nameend; - unsigned int namelen; - const struct option *p; - const struct option *pfound = NULL; - struct option_list - { - const struct option *p; - struct option_list *next; - } *ambig_list = NULL; - int exact = 0; - int indfound = -1; - int option_index; - - for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++) - /* Do nothing. */ ; - namelen = nameend - d->__nextchar; - - /* Test all long options for either exact match - or abbreviated matches. */ - for (p = longopts, option_index = 0; p->name; p++, option_index++) - if (!strncmp (p->name, d->__nextchar, namelen)) - { - if (namelen == (unsigned int) strlen (p->name)) - { - /* Exact match found. */ - pfound = p; - indfound = option_index; - exact = 1; - break; - } - else if (pfound == NULL) - { - /* First nonexact match found. */ - pfound = p; - indfound = option_index; - } - else if (long_only - || pfound->has_arg != p->has_arg - || pfound->flag != p->flag - || pfound->val != p->val) - { - /* Second or later nonexact match found. */ - struct option_list *newp = malloc (sizeof (*newp)); - newp->p = p; - newp->next = ambig_list; - ambig_list = newp; - } - } - - if (ambig_list != NULL && !exact) - { - if (print_errors) - { - struct option_list first; - first.p = pfound; - first.next = ambig_list; - ambig_list = &first; - -#if defined _LIBC && defined USE_IN_LIBIO - char *buf = NULL; - size_t buflen = 0; - - FILE *fp = open_memstream (&buf, &buflen); - if (fp != NULL) - { - fprintf (fp, - _("%s: option '%s' is ambiguous; possibilities:"), - argv[0], argv[d->optind]); - - do - { - fprintf (fp, " '--%s'", ambig_list->p->name); - ambig_list = ambig_list->next; - } - while (ambig_list != NULL); - - fputc_unlocked ('\n', fp); - - if (__builtin_expect (fclose (fp) != EOF, 1)) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } - } -#else - fprintf (stderr, - _("%s: option '%s' is ambiguous; possibilities:"), - argv[0], argv[d->optind]); - do - { - fprintf (stderr, " '--%s'", ambig_list->p->name); - ambig_list = ambig_list->next; - } - while (ambig_list != NULL); - - fputc ('\n', stderr); -#endif - } - d->__nextchar += strlen (d->__nextchar); - d->optind++; - d->optopt = 0; - return '?'; - } - - while (ambig_list != NULL) - { - struct option_list *pn = ambig_list->next; - free (ambig_list); - ambig_list = pn; - } - - if (pfound != NULL) - { - option_index = indfound; - d->optind++; - if (*nameend) - { - /* Don't test has_arg with >, because some C compilers don't - allow it to be used on enums. */ - if (pfound->has_arg) - d->optarg = nameend + 1; - else - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - int n; -#endif - - if (argv[d->optind - 1][1] == '-') - { - /* --option */ -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("\ -%s: option '--%s' doesn't allow an argument\n"), - argv[0], pfound->name); -#else - fprintf (stderr, _("\ -%s: option '--%s' doesn't allow an argument\n"), - argv[0], pfound->name); -#endif - } - else - { - /* +option or -option */ -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("\ -%s: option '%c%s' doesn't allow an argument\n"), - argv[0], argv[d->optind - 1][0], - pfound->name); -#else - fprintf (stderr, _("\ -%s: option '%c%s' doesn't allow an argument\n"), - argv[0], argv[d->optind - 1][0], - pfound->name); -#endif - } - -#if defined _LIBC && defined USE_IN_LIBIO - if (n >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#endif - } - - d->__nextchar += strlen (d->__nextchar); - - d->optopt = pfound->val; - return '?'; - } - } - else if (pfound->has_arg == 1) - { - if (d->optind < argc) - d->optarg = argv[d->optind++]; - else - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("\ -%s: option '--%s' requires an argument\n"), - argv[0], pfound->name) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, - _("%s: option '--%s' requires an argument\n"), - argv[0], pfound->name); -#endif - } - d->__nextchar += strlen (d->__nextchar); - d->optopt = pfound->val; - return optstring[0] == ':' ? ':' : '?'; - } - } - d->__nextchar += strlen (d->__nextchar); - if (longind != NULL) - *longind = option_index; - if (pfound->flag) - { - *(pfound->flag) = pfound->val; - return 0; - } - return pfound->val; - } - - /* Can't find it as a long option. If this is not getopt_long_only, - or the option starts with '--' or is not a valid short - option, then it's an error. - Otherwise interpret it as a short option. */ - if (!long_only || argv[d->optind][1] == '-' - || strchr (optstring, *d->__nextchar) == NULL) - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - int n; -#endif - - if (argv[d->optind][1] == '-') - { - /* --option */ -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("%s: unrecognized option '--%s'\n"), - argv[0], d->__nextchar); -#else - fprintf (stderr, _("%s: unrecognized option '--%s'\n"), - argv[0], d->__nextchar); -#endif - } - else - { - /* +option or -option */ -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("%s: unrecognized option '%c%s'\n"), - argv[0], argv[d->optind][0], d->__nextchar); -#else - fprintf (stderr, _("%s: unrecognized option '%c%s'\n"), - argv[0], argv[d->optind][0], d->__nextchar); -#endif - } - -#if defined _LIBC && defined USE_IN_LIBIO - if (n >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#endif - } - d->__nextchar = (char *) ""; - d->optind++; - d->optopt = 0; - return '?'; - } - } - - /* Look at and handle the next short option-character. */ - - { - char c = *d->__nextchar++; - const char *temp = strchr (optstring, c); - - /* Increment 'optind' when we start to process its last character. */ - if (*d->__nextchar == '\0') - ++d->optind; - - if (temp == NULL || c == ':' || c == ';') - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - int n; -#endif - -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("%s: invalid option -- '%c'\n"), - argv[0], c); -#else - fprintf (stderr, _("%s: invalid option -- '%c'\n"), argv[0], c); -#endif - -#if defined _LIBC && defined USE_IN_LIBIO - if (n >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#endif - } - d->optopt = c; - return '?'; - } - /* Convenience. Treat POSIX -W foo same as long option --foo */ - if (temp[0] == 'W' && temp[1] == ';') - { - char *nameend; - const struct option *p; - const struct option *pfound = NULL; - int exact = 0; - int ambig = 0; - int indfound = 0; - int option_index; - - if (longopts == NULL) - goto no_longs; - - /* This is an option that requires an argument. */ - if (*d->__nextchar != '\0') - { - d->optarg = d->__nextchar; - /* If we end this ARGV-element by taking the rest as an arg, - we must advance to the next element now. */ - d->optind++; - } - else if (d->optind == argc) - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, - _("%s: option requires an argument -- '%c'\n"), - argv[0], c) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, - _("%s: option requires an argument -- '%c'\n"), - argv[0], c); -#endif - } - d->optopt = c; - if (optstring[0] == ':') - c = ':'; - else - c = '?'; - return c; - } - else - /* We already incremented 'd->optind' once; - increment it again when taking next ARGV-elt as argument. */ - d->optarg = argv[d->optind++]; - - /* optarg is now the argument, see if it's in the - table of longopts. */ - - for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '='; - nameend++) - /* Do nothing. */ ; - - /* Test all long options for either exact match - or abbreviated matches. */ - for (p = longopts, option_index = 0; p->name; p++, option_index++) - if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar)) - { - if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name)) - { - /* Exact match found. */ - pfound = p; - indfound = option_index; - exact = 1; - break; - } - else if (pfound == NULL) - { - /* First nonexact match found. */ - pfound = p; - indfound = option_index; - } - else if (long_only - || pfound->has_arg != p->has_arg - || pfound->flag != p->flag - || pfound->val != p->val) - /* Second or later nonexact match found. */ - ambig = 1; - } - if (ambig && !exact) - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("%s: option '-W %s' is ambiguous\n"), - argv[0], d->optarg) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, _("%s: option '-W %s' is ambiguous\n"), - argv[0], d->optarg); -#endif - } - d->__nextchar += strlen (d->__nextchar); - d->optind++; - return '?'; - } - if (pfound != NULL) - { - option_index = indfound; - if (*nameend) - { - /* Don't test has_arg with >, because some C compilers don't - allow it to be used on enums. */ - if (pfound->has_arg) - d->optarg = nameend + 1; - else - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("\ -%s: option '-W %s' doesn't allow an argument\n"), - argv[0], pfound->name) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, _("\ -%s: option '-W %s' doesn't allow an argument\n"), - argv[0], pfound->name); -#endif - } - - d->__nextchar += strlen (d->__nextchar); - return '?'; - } - } - else if (pfound->has_arg == 1) - { - if (d->optind < argc) - d->optarg = argv[d->optind++]; - else - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("\ -%s: option '-W %s' requires an argument\n"), - argv[0], pfound->name) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, _("\ -%s: option '-W %s' requires an argument\n"), - argv[0], pfound->name); -#endif - } - d->__nextchar += strlen (d->__nextchar); - return optstring[0] == ':' ? ':' : '?'; - } - } - else - d->optarg = NULL; - d->__nextchar += strlen (d->__nextchar); - if (longind != NULL) - *longind = option_index; - if (pfound->flag) - { - *(pfound->flag) = pfound->val; - return 0; - } - return pfound->val; - } - - no_longs: - d->__nextchar = NULL; - return 'W'; /* Let the application handle it. */ - } - if (temp[1] == ':') - { - if (temp[2] == ':') - { - /* This is an option that accepts an argument optionally. */ - if (*d->__nextchar != '\0') - { - d->optarg = d->__nextchar; - d->optind++; - } - else - d->optarg = NULL; - d->__nextchar = NULL; - } - else - { - /* This is an option that requires an argument. */ - if (*d->__nextchar != '\0') - { - d->optarg = d->__nextchar; - /* If we end this ARGV-element by taking the rest as an arg, - we must advance to the next element now. */ - d->optind++; - } - else if (d->optind == argc) - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("\ -%s: option requires an argument -- '%c'\n"), - argv[0], c) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, - _("%s: option requires an argument -- '%c'\n"), - argv[0], c); -#endif - } - d->optopt = c; - if (optstring[0] == ':') - c = ':'; - else - c = '?'; - } - else - /* We already incremented 'optind' once; - increment it again when taking next ARGV-elt as argument. */ - d->optarg = argv[d->optind++]; - d->__nextchar = NULL; - } - } - return c; - } -} - -int -_getopt_internal (int argc, char **argv, const char *optstring, - const struct option *longopts, int *longind, int long_only, - int posixly_correct) -{ - int result; - - getopt_data.optind = optind; - getopt_data.opterr = opterr; - - result = _getopt_internal_r (argc, argv, optstring, longopts, - longind, long_only, &getopt_data, - posixly_correct); - - optind = getopt_data.optind; - optarg = getopt_data.optarg; - optopt = getopt_data.optopt; - - return result; -} - -/* glibc gets a LSB-compliant getopt. - Standalone applications get a POSIX-compliant getopt. */ -#if _LIBC -enum { POSIXLY_CORRECT = 0 }; -#else -enum { POSIXLY_CORRECT = 1 }; -#endif - -int -getopt (int argc, char *const *argv, const char *optstring) -{ - return _getopt_internal (argc, (char **) argv, optstring, - (const struct option *) 0, - (int *) 0, - 0, POSIXLY_CORRECT); -} - -#ifdef _LIBC -int -__posix_getopt (int argc, char *const *argv, const char *optstring) -{ - return _getopt_internal (argc, argv, optstring, - (const struct option *) 0, - (int *) 0, - 0, 1); -} -#endif - - -#ifdef TEST - -/* Compile with -DTEST to make an executable for use in testing - the above definition of 'getopt'. */ - -int -main (int argc, char **argv) -{ - int c; - int digit_optind = 0; - - while (1) - { - int this_option_optind = optind ? optind : 1; - - c = getopt (argc, argv, "abc:d:0123456789"); - if (c == -1) - break; - - switch (c) - { - 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 '?': - 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 */ |