2 NOTE: getopt is now part of the C library, so if you don't know what
3 "Keep this file name-space clean" means, talk to drepper@gnu.org
5 Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001,2002,2003,2004
6 Free Software Foundation, Inc.
7 This file is part of the GNU C Library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License along
20 with this program; if not, write to the Free Software Foundation,
21 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
24 Ditto for AIX 3.2 and <stdlib.h>. */
35 /* This needs to come after some library #include
36 to get __GNU_LIBRARY__ defined. */
37 #ifdef __GNU_LIBRARY__
38 /* Don't include stdlib.h for non-GNU C libraries because some of them
39 contain conflicting prototypes for getopt. */
42 #endif /* GNU C library. */
54 # define _(msgid) gettext (msgid)
57 #if defined _LIBC && defined USE_IN_LIBIO
61 #ifndef attribute_hidden
62 # define attribute_hidden
65 /* This version of `getopt' appears to the caller like standard Unix `getopt'
66 but it behaves differently for the user, since it allows the user
67 to intersperse the options with the other arguments.
69 As `getopt' works, it permutes the elements of ARGV so that,
70 when it is done, all the options precede everything else. Thus
71 all application programs are extended to handle flexible argument order.
73 Setting the environment variable POSIXLY_CORRECT disables permutation.
74 Then the behavior is completely standard.
76 GNU application programs can use a third alternative mode in which
77 they can distinguish the relative order of options and other arguments. */
80 #include "getopt_int.h"
82 /* For communication from `getopt' to the caller.
83 When `getopt' finds an option that takes an argument,
84 the argument value is returned here.
85 Also, when `ordering' is RETURN_IN_ORDER,
86 each non-option ARGV-element is returned here. */
90 /* Index in ARGV of the next element to be scanned.
91 This is used for communication to and from the caller
92 and for communication between successive calls to `getopt'.
94 On entry to `getopt', zero means this is the first call; initialize.
96 When `getopt' returns -1, this is the index of the first of the
97 non-option elements that the caller should itself scan.
99 Otherwise, `optind' communicates from one call to the next
100 how much of ARGV has been scanned so far. */
102 /* 1003.2 says this must be 1 before any call. */
105 /* Callers store zero here to inhibit the error message
106 for unrecognized options. */
110 /* Set to an option character which was unrecognized.
111 This must be initialized on some systems to avoid linking in the
112 system's own getopt implementation. */
116 /* Keep a global copy of all internal members of getopt_data. */
118 static struct _getopt_data getopt_data;
121 #ifndef __GNU_LIBRARY__
123 /* Avoid depending on library functions or files
124 whose names are inconsistent. */
127 extern char *getenv ();
130 #endif /* not __GNU_LIBRARY__ */
133 /* Stored original parameters.
134 XXX This is no good solution. We should rather copy the args so
135 that we can compare them later. But we must not use malloc(3). */
136 extern int __libc_argc;
137 extern char **__libc_argv;
139 /* Bash 2.0 gives us an environment variable containing flags
140 indicating ARGV elements that should not be considered arguments. */
142 # ifdef USE_NONOPTION_FLAGS
143 /* Defined in getopt_init.c */
144 extern char *__getopt_nonoption_flags;
147 # ifdef USE_NONOPTION_FLAGS
148 # define SWAP_FLAGS(ch1, ch2) \
149 if (d->__nonoption_flags_len > 0) \
151 char __tmp = __getopt_nonoption_flags[ch1]; \
152 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
153 __getopt_nonoption_flags[ch2] = __tmp; \
156 # define SWAP_FLAGS(ch1, ch2)
159 # define SWAP_FLAGS(ch1, ch2)
162 /* Exchange two adjacent subsequences of ARGV.
163 One subsequence is elements [first_nonopt,last_nonopt)
164 which contains all the non-options that have been skipped so far.
165 The other is elements [last_nonopt,optind), which contains all
166 the options processed since those non-options were skipped.
168 `first_nonopt' and `last_nonopt' are relocated so that they describe
169 the new indices of the non-options in ARGV after they are moved. */
172 exchange (char **argv, struct _getopt_data *d)
174 int bottom = d->__first_nonopt;
175 int middle = d->__last_nonopt;
179 /* Exchange the shorter segment with the far end of the longer segment.
180 That puts the shorter segment into the right place.
181 It leaves the longer segment in the right place overall,
182 but it consists of two parts that need to be swapped next. */
184 #if defined _LIBC && defined USE_NONOPTION_FLAGS
185 /* First make sure the handling of the `__getopt_nonoption_flags'
186 string can work normally. Our top argument must be in the range
188 if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
190 /* We must extend the array. The user plays games with us and
191 presents new arguments. */
192 char *new_str = malloc (top + 1);
194 d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
197 memset (__mempcpy (new_str, __getopt_nonoption_flags,
198 d->__nonoption_flags_max_len),
199 '\0', top + 1 - d->__nonoption_flags_max_len);
200 d->__nonoption_flags_max_len = top + 1;
201 __getopt_nonoption_flags = new_str;
206 while (top > middle && middle > bottom)
208 if (top - middle > middle - bottom)
210 /* Bottom segment is the short one. */
211 int len = middle - bottom;
214 /* Swap it with the top part of the top segment. */
215 for (i = 0; i < len; i++)
217 tem = argv[bottom + i];
218 argv[bottom + i] = argv[top - (middle - bottom) + i];
219 argv[top - (middle - bottom) + i] = tem;
220 SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
222 /* Exclude the moved bottom segment from further swapping. */
227 /* Top segment is the short one. */
228 int len = top - middle;
231 /* Swap it with the bottom part of the bottom segment. */
232 for (i = 0; i < len; i++)
234 tem = argv[bottom + i];
235 argv[bottom + i] = argv[middle + i];
236 argv[middle + i] = tem;
237 SWAP_FLAGS (bottom + i, middle + i);
239 /* Exclude the moved top segment from further swapping. */
244 /* Update records for the slots the non-options now occupy. */
246 d->__first_nonopt += (d->optind - d->__last_nonopt);
247 d->__last_nonopt = d->optind;
250 /* Initialize the internal data when the first call is made. */
253 _getopt_initialize (int argc, char *__getopt_argv_const *argv,
254 const char *optstring, struct _getopt_data *d)
256 /* Start processing options with ARGV-element 1 (since ARGV-element 0
257 is the program name); the sequence of previously skipped
258 non-option ARGV-elements is empty. */
260 d->__first_nonopt = d->__last_nonopt = d->optind;
262 d->__nextchar = NULL;
264 d->__posixly_correct = !!getenv ("POSIXLY_CORRECT");
266 /* Determine how to handle the ordering of options and nonoptions. */
268 if (optstring[0] == '-')
270 d->__ordering = RETURN_IN_ORDER;
273 else if (optstring[0] == '+')
275 d->__ordering = REQUIRE_ORDER;
278 else if (d->__posixly_correct)
279 d->__ordering = REQUIRE_ORDER;
281 d->__ordering = PERMUTE;
283 #if defined _LIBC && defined USE_NONOPTION_FLAGS
284 if (!d->__posixly_correct
285 && argc == __libc_argc && argv == __libc_argv)
287 if (d->__nonoption_flags_max_len == 0)
289 if (__getopt_nonoption_flags == NULL
290 || __getopt_nonoption_flags[0] == '\0')
291 d->__nonoption_flags_max_len = -1;
294 const char *orig_str = __getopt_nonoption_flags;
295 int len = d->__nonoption_flags_max_len = strlen (orig_str);
296 if (d->__nonoption_flags_max_len < argc)
297 d->__nonoption_flags_max_len = argc;
298 __getopt_nonoption_flags =
299 (char *) malloc (d->__nonoption_flags_max_len);
300 if (__getopt_nonoption_flags == NULL)
301 d->__nonoption_flags_max_len = -1;
303 memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
304 '\0', d->__nonoption_flags_max_len - len);
307 d->__nonoption_flags_len = d->__nonoption_flags_max_len;
310 d->__nonoption_flags_len = 0;
316 /* Scan elements of ARGV (whose length is ARGC) for option characters
319 If an element of ARGV starts with '-', and is not exactly "-" or "--",
320 then it is an option element. The characters of this element
321 (aside from the initial '-') are option characters. If `getopt'
322 is called repeatedly, it returns successively each of the option characters
323 from each of the option elements.
325 If `getopt' finds another option character, it returns that character,
326 updating `optind' and `nextchar' so that the next call to `getopt' can
327 resume the scan with the following option character or ARGV-element.
329 If there are no more option characters, `getopt' returns -1.
330 Then `optind' is the index in ARGV of the first ARGV-element
331 that is not an option. (The ARGV-elements have been permuted
332 so that those that are not options now come last.)
334 OPTSTRING is a string containing the legitimate option characters.
335 If an option character is seen that is not listed in OPTSTRING,
336 return '?' after printing an error message. If you set `opterr' to
337 zero, the error message is suppressed but we still return '?'.
339 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
340 so the following text in the same ARGV-element, or the text of the following
341 ARGV-element, is returned in `optarg'. Two colons mean an option that
342 wants an optional arg; if there is text in the current ARGV-element,
343 it is returned in `optarg', otherwise `optarg' is set to zero.
345 If OPTSTRING starts with `-' or `+', it requests different methods of
346 handling the non-option ARGV-elements.
347 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
349 Long-named options begin with `--' instead of `-'.
350 Their names may be abbreviated as long as the abbreviation is unique
351 or is an exact match for some defined option. If they have an
352 argument, it follows the option name in the same ARGV-element, separated
353 from the option name by a `=', or else the in next ARGV-element.
354 When `getopt' finds a long-named option, it returns 0 if that option's
355 `flag' field is nonzero, the value of the option's `val' field
356 if the `flag' field is zero.
358 The elements of ARGV aren't really const, because we permute them.
359 If __getopt_argv_const is defined to const, pretend they're
360 const in the prototype to be compatible with Posix.
361 But tell the truth if __getopt_argv_const is defined to empty.
363 LONGOPTS is a vector of `struct option' terminated by an
364 element containing a name which is zero.
366 LONGIND returns the index in LONGOPT of the long-named option found.
367 It is only valid when a long-named option has been found by the most
370 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
371 long-named options. */
374 _getopt_internal_r (int argc, char *__getopt_argv_const *argv,
375 const char *optstring,
376 const struct option *longopts, int *longind,
377 int long_only, struct _getopt_data *d)
379 int print_errors = d->opterr;
380 if (optstring[0] == ':')
388 if (d->optind == 0 || !d->__initialized)
391 d->optind = 1; /* Don't scan ARGV[0], the program name. */
392 optstring = _getopt_initialize (argc, argv, optstring, d);
393 d->__initialized = 1;
396 /* Test whether ARGV[optind] points to a non-option argument.
397 Either it does not have option syntax, or there is an environment flag
398 from the shell indicating it is not an option. The later information
399 is only used when the used in the GNU libc. */
400 #if defined _LIBC && defined USE_NONOPTION_FLAGS
401 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
402 || (d->optind < d->__nonoption_flags_len \
403 && __getopt_nonoption_flags[d->optind] == '1'))
405 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
408 if (d->__nextchar == NULL || *d->__nextchar == '\0')
410 /* Advance to the next ARGV-element. */
412 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
413 moved back by the user (who may also have changed the arguments). */
414 if (d->__last_nonopt > d->optind)
415 d->__last_nonopt = d->optind;
416 if (d->__first_nonopt > d->optind)
417 d->__first_nonopt = d->optind;
419 if (d->__ordering == PERMUTE)
421 /* If we have just processed some options following some non-options,
422 exchange them so that the options come first. */
424 if (d->__first_nonopt != d->__last_nonopt
425 && d->__last_nonopt != d->optind)
426 exchange ((char **) argv, d);
427 else if (d->__last_nonopt != d->optind)
428 d->__first_nonopt = d->optind;
430 /* Skip any additional non-options
431 and extend the range of non-options previously skipped. */
433 while (d->optind < argc && NONOPTION_P)
435 d->__last_nonopt = d->optind;
438 /* The special ARGV-element `--' means premature end of options.
439 Skip it like a null option,
440 then exchange with previous non-options as if it were an option,
441 then skip everything else like a non-option. */
443 if (d->optind != argc && !strcmp (argv[d->optind], "--"))
447 if (d->__first_nonopt != d->__last_nonopt
448 && d->__last_nonopt != d->optind)
449 exchange ((char **) argv, d);
450 else if (d->__first_nonopt == d->__last_nonopt)
451 d->__first_nonopt = d->optind;
452 d->__last_nonopt = argc;
457 /* If we have done all the ARGV-elements, stop the scan
458 and back over any non-options that we skipped and permuted. */
460 if (d->optind == argc)
462 /* Set the next-arg-index to point at the non-options
463 that we previously skipped, so the caller will digest them. */
464 if (d->__first_nonopt != d->__last_nonopt)
465 d->optind = d->__first_nonopt;
469 /* If we have come to a non-option and did not permute it,
470 either stop the scan or describe it to the caller and pass it by. */
474 if (d->__ordering == REQUIRE_ORDER)
476 d->optarg = argv[d->optind++];
480 /* We have found another option-ARGV-element.
481 Skip the initial punctuation. */
483 d->__nextchar = (argv[d->optind] + 1
484 + (longopts != NULL && argv[d->optind][1] == '-'));
487 /* Decode the current option-ARGV-element. */
489 /* Check whether the ARGV-element is a long option.
491 If long_only and the ARGV-element has the form "-f", where f is
492 a valid short option, don't consider it an abbreviated form of
493 a long option that starts with f. Otherwise there would be no
494 way to give the -f short option.
496 On the other hand, if there's a long option "fubar" and
497 the ARGV-element is "-fu", do consider that an abbreviation of
498 the long option, just like "--fu", and not "-f" with arg "u".
500 This distinction seems to be the most useful approach. */
503 && (argv[d->optind][1] == '-'
504 || (long_only && (argv[d->optind][2]
505 || !strchr (optstring, argv[d->optind][1])))))
508 const struct option *p;
509 const struct option *pfound = NULL;
515 for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
518 /* Test all long options for either exact match
519 or abbreviated matches. */
520 for (p = longopts, option_index = 0; p->name; p++, option_index++)
521 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
523 if ((unsigned int) (nameend - d->__nextchar)
524 == (unsigned int) strlen (p->name))
526 /* Exact match found. */
528 indfound = option_index;
532 else if (pfound == NULL)
534 /* First nonexact match found. */
536 indfound = option_index;
539 || pfound->has_arg != p->has_arg
540 || pfound->flag != p->flag
541 || pfound->val != p->val)
542 /* Second or later nonexact match found. */
550 #if defined _LIBC && defined USE_IN_LIBIO
553 if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"),
554 argv[0], argv[d->optind]) >= 0)
556 _IO_flockfile (stderr);
558 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
559 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
561 if (_IO_fwide (stderr, 0) > 0)
562 __fwprintf (stderr, L"%s", buf);
566 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
567 _IO_funlockfile (stderr);
572 fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
573 argv[0], argv[d->optind]);
576 d->__nextchar += strlen (d->__nextchar);
584 option_index = indfound;
588 /* Don't test has_arg with >, because some C compilers don't
589 allow it to be used on enums. */
591 d->optarg = nameend + 1;
596 #if defined _LIBC && defined USE_IN_LIBIO
601 if (argv[d->optind - 1][1] == '-')
604 #if defined _LIBC && defined USE_IN_LIBIO
605 n = __asprintf (&buf, _("\
606 %s: option `--%s' doesn't allow an argument\n"),
607 argv[0], pfound->name);
609 fprintf (stderr, _("\
610 %s: option `--%s' doesn't allow an argument\n"),
611 argv[0], pfound->name);
616 /* +option or -option */
617 #if defined _LIBC && defined USE_IN_LIBIO
618 n = __asprintf (&buf, _("\
619 %s: option `%c%s' doesn't allow an argument\n"),
620 argv[0], argv[d->optind - 1][0],
623 fprintf (stderr, _("\
624 %s: option `%c%s' doesn't allow an argument\n"),
625 argv[0], argv[d->optind - 1][0],
630 #if defined _LIBC && defined USE_IN_LIBIO
633 _IO_flockfile (stderr);
635 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
636 ((_IO_FILE *) stderr)->_flags2
637 |= _IO_FLAGS2_NOTCANCEL;
639 if (_IO_fwide (stderr, 0) > 0)
640 __fwprintf (stderr, L"%s", buf);
644 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
645 _IO_funlockfile (stderr);
652 d->__nextchar += strlen (d->__nextchar);
654 d->optopt = pfound->val;
658 else if (pfound->has_arg == 1)
660 if (d->optind < argc)
661 d->optarg = argv[d->optind++];
666 #if defined _LIBC && defined USE_IN_LIBIO
669 if (__asprintf (&buf, _("\
670 %s: option `%s' requires an argument\n"),
671 argv[0], argv[d->optind - 1]) >= 0)
673 _IO_flockfile (stderr);
675 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
676 ((_IO_FILE *) stderr)->_flags2
677 |= _IO_FLAGS2_NOTCANCEL;
679 if (_IO_fwide (stderr, 0) > 0)
680 __fwprintf (stderr, L"%s", buf);
684 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
685 _IO_funlockfile (stderr);
691 _("%s: option `%s' requires an argument\n"),
692 argv[0], argv[d->optind - 1]);
695 d->__nextchar += strlen (d->__nextchar);
696 d->optopt = pfound->val;
697 return optstring[0] == ':' ? ':' : '?';
700 d->__nextchar += strlen (d->__nextchar);
702 *longind = option_index;
705 *(pfound->flag) = pfound->val;
711 /* Can't find it as a long option. If this is not getopt_long_only,
712 or the option starts with '--' or is not a valid short
713 option, then it's an error.
714 Otherwise interpret it as a short option. */
715 if (!long_only || argv[d->optind][1] == '-'
716 || strchr (optstring, *d->__nextchar) == NULL)
720 #if defined _LIBC && defined USE_IN_LIBIO
725 if (argv[d->optind][1] == '-')
728 #if defined _LIBC && defined USE_IN_LIBIO
729 n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"),
730 argv[0], d->__nextchar);
732 fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
733 argv[0], d->__nextchar);
738 /* +option or -option */
739 #if defined _LIBC && defined USE_IN_LIBIO
740 n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"),
741 argv[0], argv[d->optind][0], d->__nextchar);
743 fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
744 argv[0], argv[d->optind][0], d->__nextchar);
748 #if defined _LIBC && defined USE_IN_LIBIO
751 _IO_flockfile (stderr);
753 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
754 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
756 if (_IO_fwide (stderr, 0) > 0)
757 __fwprintf (stderr, L"%s", buf);
761 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
762 _IO_funlockfile (stderr);
768 d->__nextchar = (char *) "";
775 /* Look at and handle the next short option-character. */
778 char c = *d->__nextchar++;
779 char *temp = strchr (optstring, c);
781 /* Increment `optind' when we start to process its last character. */
782 if (*d->__nextchar == '\0')
785 if (temp == NULL || c == ':')
789 #if defined _LIBC && defined USE_IN_LIBIO
794 if (d->__posixly_correct)
796 /* 1003.2 specifies the format of this message. */
797 #if defined _LIBC && defined USE_IN_LIBIO
798 n = __asprintf (&buf, _("%s: illegal option -- %c\n"),
801 fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
806 #if defined _LIBC && defined USE_IN_LIBIO
807 n = __asprintf (&buf, _("%s: invalid option -- %c\n"),
810 fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c);
814 #if defined _LIBC && defined USE_IN_LIBIO
817 _IO_flockfile (stderr);
819 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
820 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
822 if (_IO_fwide (stderr, 0) > 0)
823 __fwprintf (stderr, L"%s", buf);
827 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
828 _IO_funlockfile (stderr);
837 /* Convenience. Treat POSIX -W foo same as long option --foo */
838 if (temp[0] == 'W' && temp[1] == ';')
841 const struct option *p;
842 const struct option *pfound = NULL;
848 /* This is an option that requires an argument. */
849 if (*d->__nextchar != '\0')
851 d->optarg = d->__nextchar;
852 /* If we end this ARGV-element by taking the rest as an arg,
853 we must advance to the next element now. */
856 else if (d->optind == argc)
860 /* 1003.2 specifies the format of this message. */
861 #if defined _LIBC && defined USE_IN_LIBIO
864 if (__asprintf (&buf,
865 _("%s: option requires an argument -- %c\n"),
868 _IO_flockfile (stderr);
870 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
871 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
873 if (_IO_fwide (stderr, 0) > 0)
874 __fwprintf (stderr, L"%s", buf);
878 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
879 _IO_funlockfile (stderr);
884 fprintf (stderr, _("%s: option requires an argument -- %c\n"),
889 if (optstring[0] == ':')
896 /* We already incremented `d->optind' once;
897 increment it again when taking next ARGV-elt as argument. */
898 d->optarg = argv[d->optind++];
900 /* optarg is now the argument, see if it's in the
901 table of longopts. */
903 for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
907 /* Test all long options for either exact match
908 or abbreviated matches. */
909 for (p = longopts, option_index = 0; p->name; p++, option_index++)
910 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
912 if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
914 /* Exact match found. */
916 indfound = option_index;
920 else if (pfound == NULL)
922 /* First nonexact match found. */
924 indfound = option_index;
927 /* Second or later nonexact match found. */
934 #if defined _LIBC && defined USE_IN_LIBIO
937 if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"),
938 argv[0], argv[d->optind]) >= 0)
940 _IO_flockfile (stderr);
942 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
943 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
945 if (_IO_fwide (stderr, 0) > 0)
946 __fwprintf (stderr, L"%s", buf);
950 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
951 _IO_funlockfile (stderr);
956 fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
957 argv[0], argv[d->optind]);
960 d->__nextchar += strlen (d->__nextchar);
966 option_index = indfound;
969 /* Don't test has_arg with >, because some C compilers don't
970 allow it to be used on enums. */
972 d->optarg = nameend + 1;
977 #if defined _LIBC && defined USE_IN_LIBIO
980 if (__asprintf (&buf, _("\
981 %s: option `-W %s' doesn't allow an argument\n"),
982 argv[0], pfound->name) >= 0)
984 _IO_flockfile (stderr);
986 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
987 ((_IO_FILE *) stderr)->_flags2
988 |= _IO_FLAGS2_NOTCANCEL;
990 if (_IO_fwide (stderr, 0) > 0)
991 __fwprintf (stderr, L"%s", buf);
995 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
996 _IO_funlockfile (stderr);
1001 fprintf (stderr, _("\
1002 %s: option `-W %s' doesn't allow an argument\n"),
1003 argv[0], pfound->name);
1007 d->__nextchar += strlen (d->__nextchar);
1011 else if (pfound->has_arg == 1)
1013 if (d->optind < argc)
1014 d->optarg = argv[d->optind++];
1019 #if defined _LIBC && defined USE_IN_LIBIO
1022 if (__asprintf (&buf, _("\
1023 %s: option `%s' requires an argument\n"),
1024 argv[0], argv[d->optind - 1]) >= 0)
1026 _IO_flockfile (stderr);
1028 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1029 ((_IO_FILE *) stderr)->_flags2
1030 |= _IO_FLAGS2_NOTCANCEL;
1032 if (_IO_fwide (stderr, 0) > 0)
1033 __fwprintf (stderr, L"%s", buf);
1035 fputs (buf, stderr);
1037 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1038 _IO_funlockfile (stderr);
1044 _("%s: option `%s' requires an argument\n"),
1045 argv[0], argv[d->optind - 1]);
1048 d->__nextchar += strlen (d->__nextchar);
1049 return optstring[0] == ':' ? ':' : '?';
1052 d->__nextchar += strlen (d->__nextchar);
1053 if (longind != NULL)
1054 *longind = option_index;
1057 *(pfound->flag) = pfound->val;
1062 d->__nextchar = NULL;
1063 return 'W'; /* Let the application handle it. */
1069 /* This is an option that accepts an argument optionally. */
1070 if (*d->__nextchar != '\0')
1072 d->optarg = d->__nextchar;
1077 d->__nextchar = NULL;
1081 /* This is an option that requires an argument. */
1082 if (*d->__nextchar != '\0')
1084 d->optarg = d->__nextchar;
1085 /* If we end this ARGV-element by taking the rest as an arg,
1086 we must advance to the next element now. */
1089 else if (d->optind == argc)
1093 /* 1003.2 specifies the format of this message. */
1094 #if defined _LIBC && defined USE_IN_LIBIO
1097 if (__asprintf (&buf, _("\
1098 %s: option requires an argument -- %c\n"),
1101 _IO_flockfile (stderr);
1103 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1104 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
1106 if (_IO_fwide (stderr, 0) > 0)
1107 __fwprintf (stderr, L"%s", buf);
1109 fputs (buf, stderr);
1111 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1112 _IO_funlockfile (stderr);
1118 _("%s: option requires an argument -- %c\n"),
1123 if (optstring[0] == ':')
1129 /* We already incremented `optind' once;
1130 increment it again when taking next ARGV-elt as argument. */
1131 d->optarg = argv[d->optind++];
1132 d->__nextchar = NULL;
1140 _getopt_internal (int argc, char *__getopt_argv_const *argv,
1141 const char *optstring,
1142 const struct option *longopts, int *longind, int long_only)
1146 getopt_data.optind = optind;
1147 getopt_data.opterr = opterr;
1149 result = _getopt_internal_r (argc, argv, optstring, longopts,
1150 longind, long_only, &getopt_data);
1152 optind = getopt_data.optind;
1153 optarg = getopt_data.optarg;
1154 optopt = getopt_data.optopt;
1160 getopt (int argc, char *__getopt_argv_const *argv, const char *optstring)
1162 return _getopt_internal (argc, argv, optstring,
1163 (const struct option *) 0,
1171 /* Compile with -DTEST to make an executable for use in testing
1172 the above definition of `getopt'. */
1175 main (int argc, char **argv)
1178 int digit_optind = 0;
1182 int this_option_optind = optind ? optind : 1;
1184 c = getopt (argc, argv, "abc:d:0123456789");
1200 if (digit_optind != 0 && digit_optind != this_option_optind)
1201 printf ("digits occur in two different argv-elements.\n");
1202 digit_optind = this_option_optind;
1203 printf ("option %c\n", c);
1207 printf ("option a\n");
1211 printf ("option b\n");
1215 printf ("option c with value `%s'\n", optarg);
1222 printf ("?? getopt returned character code 0%o ??\n", c);
1228 printf ("non-option ARGV-elements: ");
1229 while (optind < argc)
1230 printf ("%s ", argv[optind++]);