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) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001,2002,2003,2004,2006,2008,2009
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 3 of the License, or
12 (at your option) any later version.
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
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
37 # define _(msgid) gettext (msgid)
40 #if defined _LIBC && defined USE_IN_LIBIO
44 #ifndef attribute_hidden
45 # define attribute_hidden
48 /* Unlike standard Unix `getopt', functions like `getopt_long'
49 let the user intersperse the options with the other arguments.
51 As `getopt_long' works, it permutes the elements of ARGV so that,
52 when it is done, all the options precede everything else. Thus
53 all application programs are extended to handle flexible argument order.
55 Using `getopt' or setting the environment variable POSIXLY_CORRECT
57 Then the application's behavior is completely standard.
59 GNU application programs can use a third alternative mode in which
60 they can distinguish the relative order of options and other arguments. */
62 #include "getopt_int.h"
64 /* For communication from `getopt' to the caller.
65 When `getopt' finds an option that takes an argument,
66 the argument value is returned here.
67 Also, when `ordering' is RETURN_IN_ORDER,
68 each non-option ARGV-element is returned here. */
72 /* Index in ARGV of the next element to be scanned.
73 This is used for communication to and from the caller
74 and for communication between successive calls to `getopt'.
76 On entry to `getopt', zero means this is the first call; initialize.
78 When `getopt' returns -1, this is the index of the first of the
79 non-option elements that the caller should itself scan.
81 Otherwise, `optind' communicates from one call to the next
82 how much of ARGV has been scanned so far. */
84 /* 1003.2 says this must be 1 before any call. */
87 /* Callers store zero here to inhibit the error message
88 for unrecognized options. */
92 /* Set to an option character which was unrecognized.
93 This must be initialized on some systems to avoid linking in the
94 system's own getopt implementation. */
98 /* Keep a global copy of all internal members of getopt_data. */
100 static struct _getopt_data getopt_data;
103 #if defined HAVE_DECL_GETENV && !HAVE_DECL_GETENV
104 extern char *getenv ();
108 /* Stored original parameters.
109 XXX This is no good solution. We should rather copy the args so
110 that we can compare them later. But we must not use malloc(3). */
111 extern int __libc_argc;
112 extern char **__libc_argv;
114 /* Bash 2.0 gives us an environment variable containing flags
115 indicating ARGV elements that should not be considered arguments. */
117 # ifdef USE_NONOPTION_FLAGS
118 /* Defined in getopt_init.c */
119 extern char *__getopt_nonoption_flags;
122 # ifdef USE_NONOPTION_FLAGS
123 # define SWAP_FLAGS(ch1, ch2) \
124 if (d->__nonoption_flags_len > 0) \
126 char __tmp = __getopt_nonoption_flags[ch1]; \
127 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
128 __getopt_nonoption_flags[ch2] = __tmp; \
131 # define SWAP_FLAGS(ch1, ch2)
134 # define SWAP_FLAGS(ch1, ch2)
137 /* Exchange two adjacent subsequences of ARGV.
138 One subsequence is elements [first_nonopt,last_nonopt)
139 which contains all the non-options that have been skipped so far.
140 The other is elements [last_nonopt,optind), which contains all
141 the options processed since those non-options were skipped.
143 `first_nonopt' and `last_nonopt' are relocated so that they describe
144 the new indices of the non-options in ARGV after they are moved. */
147 exchange (char **argv, struct _getopt_data *d)
149 int bottom = d->__first_nonopt;
150 int middle = d->__last_nonopt;
154 /* Exchange the shorter segment with the far end of the longer segment.
155 That puts the shorter segment into the right place.
156 It leaves the longer segment in the right place overall,
157 but it consists of two parts that need to be swapped next. */
159 #if defined _LIBC && defined USE_NONOPTION_FLAGS
160 /* First make sure the handling of the `__getopt_nonoption_flags'
161 string can work normally. Our top argument must be in the range
163 if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
165 /* We must extend the array. The user plays games with us and
166 presents new arguments. */
167 char *new_str = malloc (top + 1);
169 d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
172 memset (__mempcpy (new_str, __getopt_nonoption_flags,
173 d->__nonoption_flags_max_len),
174 '\0', top + 1 - d->__nonoption_flags_max_len);
175 d->__nonoption_flags_max_len = top + 1;
176 __getopt_nonoption_flags = new_str;
181 while (top > middle && middle > bottom)
183 if (top - middle > middle - bottom)
185 /* Bottom segment is the short one. */
186 int len = middle - bottom;
189 /* Swap it with the top part of the top segment. */
190 for (i = 0; i < len; i++)
192 tem = argv[bottom + i];
193 argv[bottom + i] = argv[top - (middle - bottom) + i];
194 argv[top - (middle - bottom) + i] = tem;
195 SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
197 /* Exclude the moved bottom segment from further swapping. */
202 /* Top segment is the short one. */
203 int len = top - middle;
206 /* Swap it with the bottom part of the bottom segment. */
207 for (i = 0; i < len; i++)
209 tem = argv[bottom + i];
210 argv[bottom + i] = argv[middle + i];
211 argv[middle + i] = tem;
212 SWAP_FLAGS (bottom + i, middle + i);
214 /* Exclude the moved top segment from further swapping. */
219 /* Update records for the slots the non-options now occupy. */
221 d->__first_nonopt += (d->optind - d->__last_nonopt);
222 d->__last_nonopt = d->optind;
225 /* Initialize the internal data when the first call is made. */
228 _getopt_initialize (int argc _UNUSED_PARAMETER_,
229 char **argv _UNUSED_PARAMETER_, const char *optstring,
230 int posixly_correct, struct _getopt_data *d)
232 /* Start processing options with ARGV-element 1 (since ARGV-element 0
233 is the program name); the sequence of previously skipped
234 non-option ARGV-elements is empty. */
236 d->__first_nonopt = d->__last_nonopt = d->optind;
238 d->__nextchar = NULL;
240 d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT");
242 /* Determine how to handle the ordering of options and nonoptions. */
244 if (optstring[0] == '-')
246 d->__ordering = RETURN_IN_ORDER;
249 else if (optstring[0] == '+')
251 d->__ordering = REQUIRE_ORDER;
254 else if (d->__posixly_correct)
255 d->__ordering = REQUIRE_ORDER;
257 d->__ordering = PERMUTE;
259 #if defined _LIBC && defined USE_NONOPTION_FLAGS
260 if (!d->__posixly_correct
261 && argc == __libc_argc && argv == __libc_argv)
263 if (d->__nonoption_flags_max_len == 0)
265 if (__getopt_nonoption_flags == NULL
266 || __getopt_nonoption_flags[0] == '\0')
267 d->__nonoption_flags_max_len = -1;
270 const char *orig_str = __getopt_nonoption_flags;
271 int len = d->__nonoption_flags_max_len = strlen (orig_str);
272 if (d->__nonoption_flags_max_len < argc)
273 d->__nonoption_flags_max_len = argc;
274 __getopt_nonoption_flags =
275 (char *) malloc (d->__nonoption_flags_max_len);
276 if (__getopt_nonoption_flags == NULL)
277 d->__nonoption_flags_max_len = -1;
279 memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
280 '\0', d->__nonoption_flags_max_len - len);
283 d->__nonoption_flags_len = d->__nonoption_flags_max_len;
286 d->__nonoption_flags_len = 0;
292 /* Scan elements of ARGV (whose length is ARGC) for option characters
295 If an element of ARGV starts with '-', and is not exactly "-" or "--",
296 then it is an option element. The characters of this element
297 (aside from the initial '-') are option characters. If `getopt'
298 is called repeatedly, it returns successively each of the option characters
299 from each of the option elements.
301 If `getopt' finds another option character, it returns that character,
302 updating `optind' and `nextchar' so that the next call to `getopt' can
303 resume the scan with the following option character or ARGV-element.
305 If there are no more option characters, `getopt' returns -1.
306 Then `optind' is the index in ARGV of the first ARGV-element
307 that is not an option. (The ARGV-elements have been permuted
308 so that those that are not options now come last.)
310 OPTSTRING is a string containing the legitimate option characters.
311 If an option character is seen that is not listed in OPTSTRING,
312 return '?' after printing an error message. If you set `opterr' to
313 zero, the error message is suppressed but we still return '?'.
315 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
316 so the following text in the same ARGV-element, or the text of the following
317 ARGV-element, is returned in `optarg'. Two colons mean an option that
318 wants an optional arg; if there is text in the current ARGV-element,
319 it is returned in `optarg', otherwise `optarg' is set to zero.
321 If OPTSTRING starts with `-' or `+', it requests different methods of
322 handling the non-option ARGV-elements.
323 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
325 Long-named options begin with `--' instead of `-'.
326 Their names may be abbreviated as long as the abbreviation is unique
327 or is an exact match for some defined option. If they have an
328 argument, it follows the option name in the same ARGV-element, separated
329 from the option name by a `=', or else the in next ARGV-element.
330 When `getopt' finds a long-named option, it returns 0 if that option's
331 `flag' field is nonzero, the value of the option's `val' field
332 if the `flag' field is zero.
334 LONGOPTS is a vector of `struct option' terminated by an
335 element containing a name which is zero.
337 LONGIND returns the index in LONGOPT of the long-named option found.
338 It is only valid when a long-named option has been found by the most
341 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
344 If POSIXLY_CORRECT is nonzero, behave as if the POSIXLY_CORRECT
345 environment variable were set. */
348 _getopt_internal_r (int argc, char **argv, const char *optstring,
349 const struct option *longopts, int *longind,
350 int long_only, int posixly_correct, struct _getopt_data *d)
352 int print_errors = d->opterr;
353 if (optstring[0] == ':')
361 if (d->optind == 0 || !d->__initialized)
364 d->optind = 1; /* Don't scan ARGV[0], the program name. */
365 optstring = _getopt_initialize (argc, argv, optstring,
367 d->__initialized = 1;
370 /* Test whether ARGV[optind] points to a non-option argument.
371 Either it does not have option syntax, or there is an environment flag
372 from the shell indicating it is not an option. The later information
373 is only used when the used in the GNU libc. */
374 #if defined _LIBC && defined USE_NONOPTION_FLAGS
375 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
376 || (d->optind < d->__nonoption_flags_len \
377 && __getopt_nonoption_flags[d->optind] == '1'))
379 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
382 if (d->__nextchar == NULL || *d->__nextchar == '\0')
384 /* Advance to the next ARGV-element. */
386 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
387 moved back by the user (who may also have changed the arguments). */
388 if (d->__last_nonopt > d->optind)
389 d->__last_nonopt = d->optind;
390 if (d->__first_nonopt > d->optind)
391 d->__first_nonopt = d->optind;
393 if (d->__ordering == PERMUTE)
395 /* If we have just processed some options following some non-options,
396 exchange them so that the options come first. */
398 if (d->__first_nonopt != d->__last_nonopt
399 && d->__last_nonopt != d->optind)
400 exchange ((char **) argv, d);
401 else if (d->__last_nonopt != d->optind)
402 d->__first_nonopt = d->optind;
404 /* Skip any additional non-options
405 and extend the range of non-options previously skipped. */
407 while (d->optind < argc && NONOPTION_P)
409 d->__last_nonopt = d->optind;
412 /* The special ARGV-element `--' means premature end of options.
413 Skip it like a null option,
414 then exchange with previous non-options as if it were an option,
415 then skip everything else like a non-option. */
417 if (d->optind != argc && !strcmp (argv[d->optind], "--"))
421 if (d->__first_nonopt != d->__last_nonopt
422 && d->__last_nonopt != d->optind)
423 exchange ((char **) argv, d);
424 else if (d->__first_nonopt == d->__last_nonopt)
425 d->__first_nonopt = d->optind;
426 d->__last_nonopt = argc;
431 /* If we have done all the ARGV-elements, stop the scan
432 and back over any non-options that we skipped and permuted. */
434 if (d->optind == argc)
436 /* Set the next-arg-index to point at the non-options
437 that we previously skipped, so the caller will digest them. */
438 if (d->__first_nonopt != d->__last_nonopt)
439 d->optind = d->__first_nonopt;
443 /* If we have come to a non-option and did not permute it,
444 either stop the scan or describe it to the caller and pass it by. */
448 if (d->__ordering == REQUIRE_ORDER)
450 d->optarg = argv[d->optind++];
454 /* We have found another option-ARGV-element.
455 Skip the initial punctuation. */
457 d->__nextchar = (argv[d->optind] + 1
458 + (longopts != NULL && argv[d->optind][1] == '-'));
461 /* Decode the current option-ARGV-element. */
463 /* Check whether the ARGV-element is a long option.
465 If long_only and the ARGV-element has the form "-f", where f is
466 a valid short option, don't consider it an abbreviated form of
467 a long option that starts with f. Otherwise there would be no
468 way to give the -f short option.
470 On the other hand, if there's a long option "fubar" and
471 the ARGV-element is "-fu", do consider that an abbreviation of
472 the long option, just like "--fu", and not "-f" with arg "u".
474 This distinction seems to be the most useful approach. */
477 && (argv[d->optind][1] == '-'
478 || (long_only && (argv[d->optind][2]
479 || !strchr (optstring, argv[d->optind][1])))))
482 const struct option *p;
483 const struct option *pfound = NULL;
489 for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
492 /* Test all long options for either exact match
493 or abbreviated matches. */
494 for (p = longopts, option_index = 0; p->name; p++, option_index++)
495 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
497 if ((unsigned int) (nameend - d->__nextchar)
498 == (unsigned int) strlen (p->name))
500 /* Exact match found. */
502 indfound = option_index;
506 else if (pfound == NULL)
508 /* First nonexact match found. */
510 indfound = option_index;
513 || pfound->has_arg != p->has_arg
514 || pfound->flag != p->flag
515 || pfound->val != p->val)
516 /* Second or later nonexact match found. */
524 #if defined _LIBC && defined USE_IN_LIBIO
527 if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"),
528 argv[0], argv[d->optind]) >= 0)
530 _IO_flockfile (stderr);
532 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
533 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
535 __fxprintf (NULL, "%s", buf);
537 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
538 _IO_funlockfile (stderr);
543 fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
544 argv[0], argv[d->optind]);
547 d->__nextchar += strlen (d->__nextchar);
555 option_index = indfound;
559 /* Don't test has_arg with >, because some C compilers don't
560 allow it to be used on enums. */
562 d->optarg = nameend + 1;
567 #if defined _LIBC && defined USE_IN_LIBIO
572 if (argv[d->optind - 1][1] == '-')
575 #if defined _LIBC && defined USE_IN_LIBIO
576 n = __asprintf (&buf, _("\
577 %s: option `--%s' doesn't allow an argument\n"),
578 argv[0], pfound->name);
580 fprintf (stderr, _("\
581 %s: option `--%s' doesn't allow an argument\n"),
582 argv[0], pfound->name);
587 /* +option or -option */
588 #if defined _LIBC && defined USE_IN_LIBIO
589 n = __asprintf (&buf, _("\
590 %s: option `%c%s' doesn't allow an argument\n"),
591 argv[0], argv[d->optind - 1][0],
594 fprintf (stderr, _("\
595 %s: option `%c%s' doesn't allow an argument\n"),
596 argv[0], argv[d->optind - 1][0],
601 #if defined _LIBC && defined USE_IN_LIBIO
604 _IO_flockfile (stderr);
606 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
607 ((_IO_FILE *) stderr)->_flags2
608 |= _IO_FLAGS2_NOTCANCEL;
610 __fxprintf (NULL, "%s", buf);
612 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
613 _IO_funlockfile (stderr);
620 d->__nextchar += strlen (d->__nextchar);
622 d->optopt = pfound->val;
626 else if (pfound->has_arg == 1)
628 if (d->optind < argc)
629 d->optarg = argv[d->optind++];
634 #if defined _LIBC && defined USE_IN_LIBIO
637 if (__asprintf (&buf, _("\
638 %s: option `%s' requires an argument\n"),
639 argv[0], argv[d->optind - 1]) >= 0)
641 _IO_flockfile (stderr);
643 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
644 ((_IO_FILE *) stderr)->_flags2
645 |= _IO_FLAGS2_NOTCANCEL;
647 __fxprintf (NULL, "%s", buf);
649 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
650 _IO_funlockfile (stderr);
656 _("%s: option `%s' requires an argument\n"),
657 argv[0], argv[d->optind - 1]);
660 d->__nextchar += strlen (d->__nextchar);
661 d->optopt = pfound->val;
662 return optstring[0] == ':' ? ':' : '?';
665 d->__nextchar += strlen (d->__nextchar);
667 *longind = option_index;
670 *(pfound->flag) = pfound->val;
676 /* Can't find it as a long option. If this is not getopt_long_only,
677 or the option starts with '--' or is not a valid short
678 option, then it's an error.
679 Otherwise interpret it as a short option. */
680 if (!long_only || argv[d->optind][1] == '-'
681 || strchr (optstring, *d->__nextchar) == NULL)
685 #if defined _LIBC && defined USE_IN_LIBIO
690 if (argv[d->optind][1] == '-')
693 #if defined _LIBC && defined USE_IN_LIBIO
694 n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"),
695 argv[0], d->__nextchar);
697 fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
698 argv[0], d->__nextchar);
703 /* +option or -option */
704 #if defined _LIBC && defined USE_IN_LIBIO
705 n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"),
706 argv[0], argv[d->optind][0], d->__nextchar);
708 fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
709 argv[0], argv[d->optind][0], d->__nextchar);
713 #if defined _LIBC && defined USE_IN_LIBIO
716 _IO_flockfile (stderr);
718 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
719 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
721 __fxprintf (NULL, "%s", buf);
723 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
724 _IO_funlockfile (stderr);
730 d->__nextchar = (char *) "";
737 /* Look at and handle the next short option-character. */
740 char c = *d->__nextchar++;
741 char *temp = strchr (optstring, c);
743 /* Increment `optind' when we start to process its last character. */
744 if (*d->__nextchar == '\0')
747 if (temp == NULL || c == ':')
751 #if defined _LIBC && defined USE_IN_LIBIO
756 if (d->__posixly_correct)
758 /* 1003.2 specifies the format of this message. */
759 #if defined _LIBC && defined USE_IN_LIBIO
760 n = __asprintf (&buf, _("%s: illegal option -- %c\n"),
763 fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
768 #if defined _LIBC && defined USE_IN_LIBIO
769 n = __asprintf (&buf, _("%s: invalid option -- %c\n"),
772 fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c);
776 #if defined _LIBC && defined USE_IN_LIBIO
779 _IO_flockfile (stderr);
781 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
782 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
784 __fxprintf (NULL, "%s", buf);
786 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
787 _IO_funlockfile (stderr);
796 /* Convenience. Treat POSIX -W foo same as long option --foo */
797 if (temp[0] == 'W' && temp[1] == ';')
800 const struct option *p;
801 const struct option *pfound = NULL;
807 /* This is an option that requires an argument. */
808 if (*d->__nextchar != '\0')
810 d->optarg = d->__nextchar;
811 /* If we end this ARGV-element by taking the rest as an arg,
812 we must advance to the next element now. */
815 else if (d->optind == argc)
819 /* 1003.2 specifies the format of this message. */
820 #if defined _LIBC && defined USE_IN_LIBIO
823 if (__asprintf (&buf,
824 _("%s: option requires an argument -- %c\n"),
827 _IO_flockfile (stderr);
829 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
830 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
832 __fxprintf (NULL, "%s", buf);
834 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
835 _IO_funlockfile (stderr);
840 fprintf (stderr, _("%s: option requires an argument -- %c\n"),
845 if (optstring[0] == ':')
852 /* We already incremented `d->optind' once;
853 increment it again when taking next ARGV-elt as argument. */
854 d->optarg = argv[d->optind++];
856 /* optarg is now the argument, see if it's in the
857 table of longopts. */
859 for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
863 /* Test all long options for either exact match
864 or abbreviated matches. */
865 for (p = longopts, option_index = 0; p->name; p++, option_index++)
866 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
868 if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
870 /* Exact match found. */
872 indfound = option_index;
876 else if (pfound == NULL)
878 /* First nonexact match found. */
880 indfound = option_index;
883 /* Second or later nonexact match found. */
890 #if defined _LIBC && defined USE_IN_LIBIO
893 if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"),
894 argv[0], argv[d->optind]) >= 0)
896 _IO_flockfile (stderr);
898 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
899 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
901 __fxprintf (NULL, "%s", buf);
903 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
904 _IO_funlockfile (stderr);
909 fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
910 argv[0], argv[d->optind]);
913 d->__nextchar += strlen (d->__nextchar);
919 option_index = indfound;
922 /* Don't test has_arg with >, because some C compilers don't
923 allow it to be used on enums. */
925 d->optarg = nameend + 1;
930 #if defined _LIBC && defined USE_IN_LIBIO
933 if (__asprintf (&buf, _("\
934 %s: option `-W %s' doesn't allow an argument\n"),
935 argv[0], pfound->name) >= 0)
937 _IO_flockfile (stderr);
939 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
940 ((_IO_FILE *) stderr)->_flags2
941 |= _IO_FLAGS2_NOTCANCEL;
943 __fxprintf (NULL, "%s", buf);
945 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
946 _IO_funlockfile (stderr);
951 fprintf (stderr, _("\
952 %s: option `-W %s' doesn't allow an argument\n"),
953 argv[0], pfound->name);
957 d->__nextchar += strlen (d->__nextchar);
961 else if (pfound->has_arg == 1)
963 if (d->optind < argc)
964 d->optarg = argv[d->optind++];
969 #if defined _LIBC && defined USE_IN_LIBIO
972 if (__asprintf (&buf, _("\
973 %s: option `%s' requires an argument\n"),
974 argv[0], argv[d->optind - 1]) >= 0)
976 _IO_flockfile (stderr);
978 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
979 ((_IO_FILE *) stderr)->_flags2
980 |= _IO_FLAGS2_NOTCANCEL;
982 __fxprintf (NULL, "%s", buf);
984 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
985 _IO_funlockfile (stderr);
991 _("%s: option `%s' requires an argument\n"),
992 argv[0], argv[d->optind - 1]);
995 d->__nextchar += strlen (d->__nextchar);
996 return optstring[0] == ':' ? ':' : '?';
999 d->__nextchar += strlen (d->__nextchar);
1000 if (longind != NULL)
1001 *longind = option_index;
1004 *(pfound->flag) = pfound->val;
1009 d->__nextchar = NULL;
1010 return 'W'; /* Let the application handle it. */
1016 /* This is an option that accepts an argument optionally. */
1017 if (*d->__nextchar != '\0')
1019 d->optarg = d->__nextchar;
1024 d->__nextchar = NULL;
1028 /* This is an option that requires an argument. */
1029 if (*d->__nextchar != '\0')
1031 d->optarg = d->__nextchar;
1032 /* If we end this ARGV-element by taking the rest as an arg,
1033 we must advance to the next element now. */
1036 else if (d->optind == argc)
1040 /* 1003.2 specifies the format of this message. */
1041 #if defined _LIBC && defined USE_IN_LIBIO
1044 if (__asprintf (&buf, _("\
1045 %s: option requires an argument -- %c\n"),
1048 _IO_flockfile (stderr);
1050 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1051 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
1053 __fxprintf (NULL, "%s", buf);
1055 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1056 _IO_funlockfile (stderr);
1062 _("%s: option requires an argument -- %c\n"),
1067 if (optstring[0] == ':')
1073 /* We already incremented `optind' once;
1074 increment it again when taking next ARGV-elt as argument. */
1075 d->optarg = argv[d->optind++];
1076 d->__nextchar = NULL;
1084 _getopt_internal (int argc, char **argv, const char *optstring,
1085 const struct option *longopts, int *longind,
1086 int long_only, int posixly_correct)
1090 getopt_data.optind = optind;
1091 getopt_data.opterr = opterr;
1093 result = _getopt_internal_r (argc, argv, optstring, longopts, longind,
1094 long_only, posixly_correct, &getopt_data);
1096 optind = getopt_data.optind;
1097 optarg = getopt_data.optarg;
1098 optopt = getopt_data.optopt;
1103 /* glibc gets a LSB-compliant getopt.
1104 Standalone applications get a POSIX-compliant getopt. */
1106 enum { POSIXLY_CORRECT = 0 };
1108 enum { POSIXLY_CORRECT = 1 };
1112 getopt (int argc, char *const *argv, const char *optstring)
1114 return _getopt_internal (argc, (char **) argv, optstring, NULL, NULL, 0,
1121 /* Compile with -DTEST to make an executable for use in testing
1122 the above definition of `getopt'. */
1125 main (int argc, char **argv)
1128 int digit_optind = 0;
1132 int this_option_optind = optind ? optind : 1;
1134 c = getopt (argc, argv, "abc:d:0123456789");
1150 if (digit_optind != 0 && digit_optind != this_option_optind)
1151 printf ("digits occur in two different argv-elements.\n");
1152 digit_optind = this_option_optind;
1153 printf ("option %c\n", c);
1157 printf ("option a\n");
1161 printf ("option b\n");
1165 printf ("option c with value `%s'\n", optarg);
1172 printf ("?? getopt returned character code 0%o ??\n", c);
1178 printf ("non-option ARGV-elements: ");
1179 while (optind < argc)
1180 printf ("%s ", argv[optind++]);