1 /* -*- buffer-read-only: t -*- vi: set ro: */
2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
4 NOTE: getopt is part of the C library, so if you don't know what
5 "Keep this file name-space clean" means, talk to drepper@gnu.org
7 Copyright (C) 1987-1996, 1998-2004, 2006, 2008-2011 Free Software
9 This file is part of the GNU C Library.
11 This program is free software: you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>. */
39 # define _(msgid) gettext (msgid)
42 #if defined _LIBC && defined USE_IN_LIBIO
46 /* This version of `getopt' appears to the caller like standard Unix `getopt'
47 but it behaves differently for the user, since it allows the user
48 to intersperse the options with the other arguments.
50 As `getopt_long' works, it permutes the elements of ARGV so that,
51 when it is done, all the options precede everything else. Thus
52 all application programs are extended to handle flexible argument order.
54 Using `getopt' or setting the environment variable POSIXLY_CORRECT
56 Then the behavior is completely standard.
58 GNU application programs can use a third alternative mode in which
59 they can distinguish the relative order of options and other arguments. */
61 #include "getopt_int.h"
63 /* For communication from `getopt' to the caller.
64 When `getopt' finds an option that takes an argument,
65 the argument value is returned here.
66 Also, when `ordering' is RETURN_IN_ORDER,
67 each non-option ARGV-element is returned here. */
71 /* Index in ARGV of the next element to be scanned.
72 This is used for communication to and from the caller
73 and for communication between successive calls to `getopt'.
75 On entry to `getopt', zero means this is the first call; initialize.
77 When `getopt' returns -1, this is the index of the first of the
78 non-option elements that the caller should itself scan.
80 Otherwise, `optind' communicates from one call to the next
81 how much of ARGV has been scanned so far. */
83 /* 1003.2 says this must be 1 before any call. */
86 /* Callers store zero here to inhibit the error message
87 for unrecognized options. */
91 /* Set to an option character which was unrecognized.
92 This must be initialized on some systems to avoid linking in the
93 system's own getopt implementation. */
97 /* Keep a global copy of all internal members of getopt_data. */
99 static struct _getopt_data getopt_data;
102 #if defined HAVE_DECL_GETENV && !HAVE_DECL_GETENV
103 extern char *getenv ();
107 /* Stored original parameters.
108 XXX This is no good solution. We should rather copy the args so
109 that we can compare them later. But we must not use malloc(3). */
110 extern int __libc_argc;
111 extern char **__libc_argv;
113 /* Bash 2.0 gives us an environment variable containing flags
114 indicating ARGV elements that should not be considered arguments. */
116 # ifdef USE_NONOPTION_FLAGS
117 /* Defined in getopt_init.c */
118 extern char *__getopt_nonoption_flags;
121 # ifdef USE_NONOPTION_FLAGS
122 # define SWAP_FLAGS(ch1, ch2) \
123 if (d->__nonoption_flags_len > 0) \
125 char __tmp = __getopt_nonoption_flags[ch1]; \
126 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
127 __getopt_nonoption_flags[ch2] = __tmp; \
130 # define SWAP_FLAGS(ch1, ch2)
133 # define SWAP_FLAGS(ch1, ch2)
136 /* Exchange two adjacent subsequences of ARGV.
137 One subsequence is elements [first_nonopt,last_nonopt)
138 which contains all the non-options that have been skipped so far.
139 The other is elements [last_nonopt,optind), which contains all
140 the options processed since those non-options were skipped.
142 `first_nonopt' and `last_nonopt' are relocated so that they describe
143 the new indices of the non-options in ARGV after they are moved. */
146 exchange (char **argv, struct _getopt_data *d)
148 int bottom = d->__first_nonopt;
149 int middle = d->__last_nonopt;
153 /* Exchange the shorter segment with the far end of the longer segment.
154 That puts the shorter segment into the right place.
155 It leaves the longer segment in the right place overall,
156 but it consists of two parts that need to be swapped next. */
158 #if defined _LIBC && defined USE_NONOPTION_FLAGS
159 /* First make sure the handling of the `__getopt_nonoption_flags'
160 string can work normally. Our top argument must be in the range
162 if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
164 /* We must extend the array. The user plays games with us and
165 presents new arguments. */
166 char *new_str = malloc (top + 1);
168 d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
171 memset (__mempcpy (new_str, __getopt_nonoption_flags,
172 d->__nonoption_flags_max_len),
173 '\0', top + 1 - d->__nonoption_flags_max_len);
174 d->__nonoption_flags_max_len = top + 1;
175 __getopt_nonoption_flags = new_str;
180 while (top > middle && middle > bottom)
182 if (top - middle > middle - bottom)
184 /* Bottom segment is the short one. */
185 int len = middle - bottom;
188 /* Swap it with the top part of the top segment. */
189 for (i = 0; i < len; i++)
191 tem = argv[bottom + i];
192 argv[bottom + i] = argv[top - (middle - bottom) + i];
193 argv[top - (middle - bottom) + i] = tem;
194 SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
196 /* Exclude the moved bottom segment from further swapping. */
201 /* Top segment is the short one. */
202 int len = top - middle;
205 /* Swap it with the bottom part of the bottom segment. */
206 for (i = 0; i < len; i++)
208 tem = argv[bottom + i];
209 argv[bottom + i] = argv[middle + i];
210 argv[middle + i] = tem;
211 SWAP_FLAGS (bottom + i, middle + i);
213 /* Exclude the moved top segment from further swapping. */
218 /* Update records for the slots the non-options now occupy. */
220 d->__first_nonopt += (d->optind - d->__last_nonopt);
221 d->__last_nonopt = d->optind;
224 /* Initialize the internal data when the first call is made. */
227 _getopt_initialize (int argc _GL_UNUSED,
228 char **argv _GL_UNUSED, const char *optstring,
229 struct _getopt_data *d, int posixly_correct)
231 /* Start processing options with ARGV-element 1 (since ARGV-element 0
232 is the program name); the sequence of previously skipped
233 non-option ARGV-elements is empty. */
235 d->__first_nonopt = d->__last_nonopt = d->optind;
237 d->__nextchar = NULL;
239 d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT");
241 /* Determine how to handle the ordering of options and nonoptions. */
243 if (optstring[0] == '-')
245 d->__ordering = RETURN_IN_ORDER;
248 else if (optstring[0] == '+')
250 d->__ordering = REQUIRE_ORDER;
253 else if (d->__posixly_correct)
254 d->__ordering = REQUIRE_ORDER;
256 d->__ordering = PERMUTE;
258 #if defined _LIBC && defined USE_NONOPTION_FLAGS
259 if (!d->__posixly_correct
260 && argc == __libc_argc && argv == __libc_argv)
262 if (d->__nonoption_flags_max_len == 0)
264 if (__getopt_nonoption_flags == NULL
265 || __getopt_nonoption_flags[0] == '\0')
266 d->__nonoption_flags_max_len = -1;
269 const char *orig_str = __getopt_nonoption_flags;
270 int len = d->__nonoption_flags_max_len = strlen (orig_str);
271 if (d->__nonoption_flags_max_len < argc)
272 d->__nonoption_flags_max_len = argc;
273 __getopt_nonoption_flags =
274 (char *) malloc (d->__nonoption_flags_max_len);
275 if (__getopt_nonoption_flags == NULL)
276 d->__nonoption_flags_max_len = -1;
278 memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
279 '\0', d->__nonoption_flags_max_len - len);
282 d->__nonoption_flags_len = d->__nonoption_flags_max_len;
285 d->__nonoption_flags_len = 0;
291 /* Scan elements of ARGV (whose length is ARGC) for option characters
294 If an element of ARGV starts with '-', and is not exactly "-" or "--",
295 then it is an option element. The characters of this element
296 (aside from the initial '-') are option characters. If `getopt'
297 is called repeatedly, it returns successively each of the option characters
298 from each of the option elements.
300 If `getopt' finds another option character, it returns that character,
301 updating `optind' and `nextchar' so that the next call to `getopt' can
302 resume the scan with the following option character or ARGV-element.
304 If there are no more option characters, `getopt' returns -1.
305 Then `optind' is the index in ARGV of the first ARGV-element
306 that is not an option. (The ARGV-elements have been permuted
307 so that those that are not options now come last.)
309 OPTSTRING is a string containing the legitimate option characters.
310 If an option character is seen that is not listed in OPTSTRING,
311 return '?' after printing an error message. If you set `opterr' to
312 zero, the error message is suppressed but we still return '?'.
314 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
315 so the following text in the same ARGV-element, or the text of the following
316 ARGV-element, is returned in `optarg'. Two colons mean an option that
317 wants an optional arg; if there is text in the current ARGV-element,
318 it is returned in `optarg', otherwise `optarg' is set to zero.
320 If OPTSTRING starts with `-' or `+', it requests different methods of
321 handling the non-option ARGV-elements.
322 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
324 Long-named options begin with `--' instead of `-'.
325 Their names may be abbreviated as long as the abbreviation is unique
326 or is an exact match for some defined option. If they have an
327 argument, it follows the option name in the same ARGV-element, separated
328 from the option name by a `=', or else the in next ARGV-element.
329 When `getopt' finds a long-named option, it returns 0 if that option's
330 `flag' field is nonzero, the value of the option's `val' field
331 if the `flag' field is zero.
333 The elements of ARGV aren't really const, because we permute them.
334 But we pretend they're const in the prototype to be compatible
337 LONGOPTS is a vector of `struct option' terminated by an
338 element containing a name which is zero.
340 LONGIND returns the index in LONGOPT of the long-named option found.
341 It is only valid when a long-named option has been found by the most
344 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
345 long-named options. */
348 _getopt_internal_r (int argc, char **argv, const char *optstring,
349 const struct option *longopts, int *longind,
350 int long_only, struct _getopt_data *d, int posixly_correct)
352 int print_errors = d->opterr;
359 if (d->optind == 0 || !d->__initialized)
362 d->optind = 1; /* Don't scan ARGV[0], the program name. */
363 optstring = _getopt_initialize (argc, argv, optstring, d,
365 d->__initialized = 1;
367 else if (optstring[0] == '-' || optstring[0] == '+')
369 if (optstring[0] == ':')
372 /* Test whether ARGV[optind] points to a non-option argument.
373 Either it does not have option syntax, or there is an environment flag
374 from the shell indicating it is not an option. The later information
375 is only used when the used in the GNU libc. */
376 #if defined _LIBC && defined USE_NONOPTION_FLAGS
377 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
378 || (d->optind < d->__nonoption_flags_len \
379 && __getopt_nonoption_flags[d->optind] == '1'))
381 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
384 if (d->__nextchar == NULL || *d->__nextchar == '\0')
386 /* Advance to the next ARGV-element. */
388 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
389 moved back by the user (who may also have changed the arguments). */
390 if (d->__last_nonopt > d->optind)
391 d->__last_nonopt = d->optind;
392 if (d->__first_nonopt > d->optind)
393 d->__first_nonopt = d->optind;
395 if (d->__ordering == PERMUTE)
397 /* If we have just processed some options following some non-options,
398 exchange them so that the options come first. */
400 if (d->__first_nonopt != d->__last_nonopt
401 && d->__last_nonopt != d->optind)
402 exchange ((char **) argv, d);
403 else if (d->__last_nonopt != d->optind)
404 d->__first_nonopt = d->optind;
406 /* Skip any additional non-options
407 and extend the range of non-options previously skipped. */
409 while (d->optind < argc && NONOPTION_P)
411 d->__last_nonopt = d->optind;
414 /* The special ARGV-element `--' means premature end of options.
415 Skip it like a null option,
416 then exchange with previous non-options as if it were an option,
417 then skip everything else like a non-option. */
419 if (d->optind != argc && !strcmp (argv[d->optind], "--"))
423 if (d->__first_nonopt != d->__last_nonopt
424 && d->__last_nonopt != d->optind)
425 exchange ((char **) argv, d);
426 else if (d->__first_nonopt == d->__last_nonopt)
427 d->__first_nonopt = d->optind;
428 d->__last_nonopt = argc;
433 /* If we have done all the ARGV-elements, stop the scan
434 and back over any non-options that we skipped and permuted. */
436 if (d->optind == argc)
438 /* Set the next-arg-index to point at the non-options
439 that we previously skipped, so the caller will digest them. */
440 if (d->__first_nonopt != d->__last_nonopt)
441 d->optind = d->__first_nonopt;
445 /* If we have come to a non-option and did not permute it,
446 either stop the scan or describe it to the caller and pass it by. */
450 if (d->__ordering == REQUIRE_ORDER)
452 d->optarg = argv[d->optind++];
456 /* We have found another option-ARGV-element.
457 Skip the initial punctuation. */
459 d->__nextchar = (argv[d->optind] + 1
460 + (longopts != NULL && argv[d->optind][1] == '-'));
463 /* Decode the current option-ARGV-element. */
465 /* Check whether the ARGV-element is a long option.
467 If long_only and the ARGV-element has the form "-f", where f is
468 a valid short option, don't consider it an abbreviated form of
469 a long option that starts with f. Otherwise there would be no
470 way to give the -f short option.
472 On the other hand, if there's a long option "fubar" and
473 the ARGV-element is "-fu", do consider that an abbreviation of
474 the long option, just like "--fu", and not "-f" with arg "u".
476 This distinction seems to be the most useful approach. */
479 && (argv[d->optind][1] == '-'
480 || (long_only && (argv[d->optind][2]
481 || !strchr (optstring, argv[d->optind][1])))))
484 const struct option *p;
485 const struct option *pfound = NULL;
491 for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
494 /* Test all long options for either exact match
495 or abbreviated matches. */
496 for (p = longopts, option_index = 0; p->name; p++, option_index++)
497 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
499 if ((unsigned int) (nameend - d->__nextchar)
500 == (unsigned int) strlen (p->name))
502 /* Exact match found. */
504 indfound = option_index;
508 else if (pfound == NULL)
510 /* First nonexact match found. */
512 indfound = option_index;
515 || pfound->has_arg != p->has_arg
516 || pfound->flag != p->flag
517 || pfound->val != p->val)
518 /* Second or later nonexact match found. */
526 #if defined _LIBC && defined USE_IN_LIBIO
529 if (__asprintf (&buf, _("%s: option '%s' is ambiguous\n"),
530 argv[0], argv[d->optind]) >= 0)
532 _IO_flockfile (stderr);
534 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
535 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
537 __fxprintf (NULL, "%s", buf);
539 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
540 _IO_funlockfile (stderr);
545 fprintf (stderr, _("%s: option '%s' is ambiguous\n"),
546 argv[0], argv[d->optind]);
549 d->__nextchar += strlen (d->__nextchar);
557 option_index = indfound;
561 /* Don't test has_arg with >, because some C compilers don't
562 allow it to be used on enums. */
564 d->optarg = nameend + 1;
569 #if defined _LIBC && defined USE_IN_LIBIO
574 if (argv[d->optind - 1][1] == '-')
577 #if defined _LIBC && defined USE_IN_LIBIO
578 n = __asprintf (&buf, _("\
579 %s: option '--%s' doesn't allow an argument\n"),
580 argv[0], pfound->name);
582 fprintf (stderr, _("\
583 %s: option '--%s' doesn't allow an argument\n"),
584 argv[0], pfound->name);
589 /* +option or -option */
590 #if defined _LIBC && defined USE_IN_LIBIO
591 n = __asprintf (&buf, _("\
592 %s: option '%c%s' doesn't allow an argument\n"),
593 argv[0], argv[d->optind - 1][0],
596 fprintf (stderr, _("\
597 %s: option '%c%s' doesn't allow an argument\n"),
598 argv[0], argv[d->optind - 1][0],
603 #if defined _LIBC && defined USE_IN_LIBIO
606 _IO_flockfile (stderr);
608 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
609 ((_IO_FILE *) stderr)->_flags2
610 |= _IO_FLAGS2_NOTCANCEL;
612 __fxprintf (NULL, "%s", buf);
614 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
615 _IO_funlockfile (stderr);
622 d->__nextchar += strlen (d->__nextchar);
624 d->optopt = pfound->val;
628 else if (pfound->has_arg == 1)
630 if (d->optind < argc)
631 d->optarg = argv[d->optind++];
636 #if defined _LIBC && defined USE_IN_LIBIO
639 if (__asprintf (&buf, _("\
640 %s: option '--%s' requires an argument\n"),
641 argv[0], pfound->name) >= 0)
643 _IO_flockfile (stderr);
645 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
646 ((_IO_FILE *) stderr)->_flags2
647 |= _IO_FLAGS2_NOTCANCEL;
649 __fxprintf (NULL, "%s", buf);
651 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
652 _IO_funlockfile (stderr);
658 _("%s: option '--%s' requires an argument\n"),
659 argv[0], pfound->name);
662 d->__nextchar += strlen (d->__nextchar);
663 d->optopt = pfound->val;
664 return optstring[0] == ':' ? ':' : '?';
667 d->__nextchar += strlen (d->__nextchar);
669 *longind = option_index;
672 *(pfound->flag) = pfound->val;
678 /* Can't find it as a long option. If this is not getopt_long_only,
679 or the option starts with '--' or is not a valid short
680 option, then it's an error.
681 Otherwise interpret it as a short option. */
682 if (!long_only || argv[d->optind][1] == '-'
683 || strchr (optstring, *d->__nextchar) == NULL)
687 #if defined _LIBC && defined USE_IN_LIBIO
692 if (argv[d->optind][1] == '-')
695 #if defined _LIBC && defined USE_IN_LIBIO
696 n = __asprintf (&buf, _("%s: unrecognized option '--%s'\n"),
697 argv[0], d->__nextchar);
699 fprintf (stderr, _("%s: unrecognized option '--%s'\n"),
700 argv[0], d->__nextchar);
705 /* +option or -option */
706 #if defined _LIBC && defined USE_IN_LIBIO
707 n = __asprintf (&buf, _("%s: unrecognized option '%c%s'\n"),
708 argv[0], argv[d->optind][0], d->__nextchar);
710 fprintf (stderr, _("%s: unrecognized option '%c%s'\n"),
711 argv[0], argv[d->optind][0], d->__nextchar);
715 #if defined _LIBC && defined USE_IN_LIBIO
718 _IO_flockfile (stderr);
720 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
721 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
723 __fxprintf (NULL, "%s", buf);
725 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
726 _IO_funlockfile (stderr);
732 d->__nextchar = (char *) "";
739 /* Look at and handle the next short option-character. */
742 char c = *d->__nextchar++;
743 const char *temp = strchr (optstring, c);
745 /* Increment `optind' when we start to process its last character. */
746 if (*d->__nextchar == '\0')
749 if (temp == NULL || c == ':' || c == ';')
753 #if defined _LIBC && defined USE_IN_LIBIO
758 #if defined _LIBC && defined USE_IN_LIBIO
759 n = __asprintf (&buf, _("%s: invalid option -- '%c'\n"),
762 fprintf (stderr, _("%s: invalid option -- '%c'\n"), argv[0], c);
765 #if defined _LIBC && defined USE_IN_LIBIO
768 _IO_flockfile (stderr);
770 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
771 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
773 __fxprintf (NULL, "%s", buf);
775 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
776 _IO_funlockfile (stderr);
785 /* Convenience. Treat POSIX -W foo same as long option --foo */
786 if (temp[0] == 'W' && temp[1] == ';')
789 const struct option *p;
790 const struct option *pfound = NULL;
796 /* This is an option that requires an argument. */
797 if (*d->__nextchar != '\0')
799 d->optarg = d->__nextchar;
800 /* If we end this ARGV-element by taking the rest as an arg,
801 we must advance to the next element now. */
804 else if (d->optind == argc)
808 #if defined _LIBC && defined USE_IN_LIBIO
811 if (__asprintf (&buf,
812 _("%s: option requires an argument -- '%c'\n"),
815 _IO_flockfile (stderr);
817 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
818 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
820 __fxprintf (NULL, "%s", buf);
822 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
823 _IO_funlockfile (stderr);
829 _("%s: option requires an argument -- '%c'\n"),
834 if (optstring[0] == ':')
841 /* We already incremented `d->optind' once;
842 increment it again when taking next ARGV-elt as argument. */
843 d->optarg = argv[d->optind++];
845 /* optarg is now the argument, see if it's in the
846 table of longopts. */
848 for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
852 /* Test all long options for either exact match
853 or abbreviated matches. */
854 for (p = longopts, option_index = 0; p->name; p++, option_index++)
855 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
857 if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
859 /* Exact match found. */
861 indfound = option_index;
865 else if (pfound == NULL)
867 /* First nonexact match found. */
869 indfound = option_index;
872 || pfound->has_arg != p->has_arg
873 || pfound->flag != p->flag
874 || pfound->val != p->val)
875 /* Second or later nonexact match found. */
882 #if defined _LIBC && defined USE_IN_LIBIO
885 if (__asprintf (&buf, _("%s: option '-W %s' is ambiguous\n"),
886 argv[0], d->optarg) >= 0)
888 _IO_flockfile (stderr);
890 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
891 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
893 __fxprintf (NULL, "%s", buf);
895 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
896 _IO_funlockfile (stderr);
901 fprintf (stderr, _("%s: option '-W %s' is ambiguous\n"),
905 d->__nextchar += strlen (d->__nextchar);
911 option_index = indfound;
914 /* Don't test has_arg with >, because some C compilers don't
915 allow it to be used on enums. */
917 d->optarg = nameend + 1;
922 #if defined _LIBC && defined USE_IN_LIBIO
925 if (__asprintf (&buf, _("\
926 %s: option '-W %s' doesn't allow an argument\n"),
927 argv[0], pfound->name) >= 0)
929 _IO_flockfile (stderr);
931 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
932 ((_IO_FILE *) stderr)->_flags2
933 |= _IO_FLAGS2_NOTCANCEL;
935 __fxprintf (NULL, "%s", buf);
937 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
938 _IO_funlockfile (stderr);
943 fprintf (stderr, _("\
944 %s: option '-W %s' doesn't allow an argument\n"),
945 argv[0], pfound->name);
949 d->__nextchar += strlen (d->__nextchar);
953 else if (pfound->has_arg == 1)
955 if (d->optind < argc)
956 d->optarg = argv[d->optind++];
961 #if defined _LIBC && defined USE_IN_LIBIO
964 if (__asprintf (&buf, _("\
965 %s: option '-W %s' requires an argument\n"),
966 argv[0], pfound->name) >= 0)
968 _IO_flockfile (stderr);
970 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
971 ((_IO_FILE *) stderr)->_flags2
972 |= _IO_FLAGS2_NOTCANCEL;
974 __fxprintf (NULL, "%s", buf);
976 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
977 _IO_funlockfile (stderr);
982 fprintf (stderr, _("\
983 %s: option '-W %s' requires an argument\n"),
984 argv[0], pfound->name);
987 d->__nextchar += strlen (d->__nextchar);
988 return optstring[0] == ':' ? ':' : '?';
993 d->__nextchar += strlen (d->__nextchar);
995 *longind = option_index;
998 *(pfound->flag) = pfound->val;
1003 d->__nextchar = NULL;
1004 return 'W'; /* Let the application handle it. */
1010 /* This is an option that accepts an argument optionally. */
1011 if (*d->__nextchar != '\0')
1013 d->optarg = d->__nextchar;
1018 d->__nextchar = NULL;
1022 /* This is an option that requires an argument. */
1023 if (*d->__nextchar != '\0')
1025 d->optarg = d->__nextchar;
1026 /* If we end this ARGV-element by taking the rest as an arg,
1027 we must advance to the next element now. */
1030 else if (d->optind == argc)
1034 #if defined _LIBC && defined USE_IN_LIBIO
1037 if (__asprintf (&buf, _("\
1038 %s: option requires an argument -- '%c'\n"),
1041 _IO_flockfile (stderr);
1043 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1044 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
1046 __fxprintf (NULL, "%s", buf);
1048 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1049 _IO_funlockfile (stderr);
1055 _("%s: option requires an argument -- '%c'\n"),
1060 if (optstring[0] == ':')
1066 /* We already incremented `optind' once;
1067 increment it again when taking next ARGV-elt as argument. */
1068 d->optarg = argv[d->optind++];
1069 d->__nextchar = NULL;
1077 _getopt_internal (int argc, char **argv, const char *optstring,
1078 const struct option *longopts, int *longind, int long_only,
1079 int posixly_correct)
1083 getopt_data.optind = optind;
1084 getopt_data.opterr = opterr;
1086 result = _getopt_internal_r (argc, argv, optstring, longopts,
1087 longind, long_only, &getopt_data,
1090 optind = getopt_data.optind;
1091 optarg = getopt_data.optarg;
1092 optopt = getopt_data.optopt;
1097 /* glibc gets a LSB-compliant getopt.
1098 Standalone applications get a POSIX-compliant getopt. */
1100 enum { POSIXLY_CORRECT = 0 };
1102 enum { POSIXLY_CORRECT = 1 };
1106 getopt (int argc, char *const *argv, const char *optstring)
1108 return _getopt_internal (argc, (char **) argv, optstring,
1109 (const struct option *) 0,
1111 0, POSIXLY_CORRECT);
1116 __posix_getopt (int argc, char *const *argv, const char *optstring)
1118 return _getopt_internal (argc, argv, optstring,
1119 (const struct option *) 0,
1128 /* Compile with -DTEST to make an executable for use in testing
1129 the above definition of `getopt'. */
1132 main (int argc, char **argv)
1135 int digit_optind = 0;
1139 int this_option_optind = optind ? optind : 1;
1141 c = getopt (argc, argv, "abc:d:0123456789");
1157 if (digit_optind != 0 && digit_optind != this_option_optind)
1158 printf ("digits occur in two different argv-elements.\n");
1159 digit_optind = this_option_optind;
1160 printf ("option %c\n", c);
1164 printf ("option a\n");
1168 printf ("option b\n");
1172 printf ("option c with value '%s'\n", optarg);
1179 printf ("?? getopt returned character code 0%o ??\n", c);
1185 printf ("non-option ARGV-elements: ");
1186 while (optind < argc)
1187 printf ("%s ", argv[optind++]);