2 NOTE: getopt is 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) 1987-2015 Free Software Foundation, Inc.
6 This file is part of the GNU C Library.
8 The GNU C Library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 2.1 of the License, or (at your option) any later version.
13 The GNU C Library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public
19 License along with the GNU C Library; if not, see
20 <http://www.gnu.org/licenses/>. */
22 /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
23 Ditto for AIX 3.2 and <stdlib.h>. */
34 /* Comment out all this code if we are using the GNU C Library, and are not
35 actually compiling the library itself. This code is part of the GNU C
36 Library, but also included in many other GNU distributions. Compiling
37 and linking in this code is a waste when using the GNU C library
38 (especially if it is a shared library). Rather than having every GNU
39 program understand `configure --with-gnu-libc' and omit the object files,
40 it is simpler to just do this in the source for each such file. */
42 #define GETOPT_INTERFACE_VERSION 2
43 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
44 # include <gnu-versions.h>
45 # if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
53 /* This needs to come after some library #include
54 to get __GNU_LIBRARY__ defined. */
55 #ifdef __GNU_LIBRARY__
56 /* Don't include stdlib.h for non-GNU C libraries because some of them
57 contain conflicting prototypes for getopt. */
60 #endif /* GNU C library. */
72 # define _(msgid) gettext (msgid)
79 #ifndef attribute_hidden
80 # define attribute_hidden
83 /* This version of `getopt' appears to the caller like standard Unix `getopt'
84 but it behaves differently for the user, since it allows the user
85 to intersperse the options with the other arguments.
87 As `getopt' works, it permutes the elements of ARGV so that,
88 when it is done, all the options precede everything else. Thus
89 all application programs are extended to handle flexible argument order.
91 Setting the environment variable POSIXLY_CORRECT disables permutation.
92 Then the behavior is completely standard.
94 GNU application programs can use a third alternative mode in which
95 they can distinguish the relative order of options and other arguments. */
98 #include "getopt_int.h"
100 /* For communication from `getopt' to the caller.
101 When `getopt' finds an option that takes an argument,
102 the argument value is returned here.
103 Also, when `ordering' is RETURN_IN_ORDER,
104 each non-option ARGV-element is returned here. */
108 /* Index in ARGV of the next element to be scanned.
109 This is used for communication to and from the caller
110 and for communication between successive calls to `getopt'.
112 On entry to `getopt', zero means this is the first call; initialize.
114 When `getopt' returns -1, this is the index of the first of the
115 non-option elements that the caller should itself scan.
117 Otherwise, `optind' communicates from one call to the next
118 how much of ARGV has been scanned so far. */
120 /* 1003.2 says this must be 1 before any call. */
123 /* Callers store zero here to inhibit the error message
124 for unrecognized options. */
128 /* Set to an option character which was unrecognized.
129 This must be initialized on some systems to avoid linking in the
130 system's own getopt implementation. */
134 /* Keep a global copy of all internal members of getopt_data. */
136 static struct _getopt_data getopt_data;
139 #ifndef __GNU_LIBRARY__
141 /* Avoid depending on library functions or files
142 whose names are inconsistent. */
145 extern char *getenv ();
148 #endif /* not __GNU_LIBRARY__ */
151 /* Stored original parameters.
152 XXX This is no good solution. We should rather copy the args so
153 that we can compare them later. But we must not use malloc(3). */
154 extern int __libc_argc;
155 extern char **__libc_argv;
157 /* Bash 2.0 gives us an environment variable containing flags
158 indicating ARGV elements that should not be considered arguments. */
160 # ifdef USE_NONOPTION_FLAGS
161 /* Defined in getopt_init.c */
162 extern char *__getopt_nonoption_flags;
165 # ifdef USE_NONOPTION_FLAGS
166 # define SWAP_FLAGS(ch1, ch2) \
167 if (d->__nonoption_flags_len > 0) \
169 char __tmp = __getopt_nonoption_flags[ch1]; \
170 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
171 __getopt_nonoption_flags[ch2] = __tmp; \
174 # define SWAP_FLAGS(ch1, ch2)
177 # define SWAP_FLAGS(ch1, ch2)
180 /* Exchange two adjacent subsequences of ARGV.
181 One subsequence is elements [first_nonopt,last_nonopt)
182 which contains all the non-options that have been skipped so far.
183 The other is elements [last_nonopt,optind), which contains all
184 the options processed since those non-options were skipped.
186 `first_nonopt' and `last_nonopt' are relocated so that they describe
187 the new indices of the non-options in ARGV after they are moved. */
190 exchange (char **argv, struct _getopt_data *d)
192 int bottom = d->__first_nonopt;
193 int middle = d->__last_nonopt;
197 /* Exchange the shorter segment with the far end of the longer segment.
198 That puts the shorter segment into the right place.
199 It leaves the longer segment in the right place overall,
200 but it consists of two parts that need to be swapped next. */
202 #if defined _LIBC && defined USE_NONOPTION_FLAGS
203 /* First make sure the handling of the `__getopt_nonoption_flags'
204 string can work normally. Our top argument must be in the range
206 if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
208 /* We must extend the array. The user plays games with us and
209 presents new arguments. */
210 char *new_str = malloc (top + 1);
212 d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
215 memset (__mempcpy (new_str, __getopt_nonoption_flags,
216 d->__nonoption_flags_max_len),
217 '\0', top + 1 - d->__nonoption_flags_max_len);
218 d->__nonoption_flags_max_len = top + 1;
219 __getopt_nonoption_flags = new_str;
224 while (top > middle && middle > bottom)
226 if (top - middle > middle - bottom)
228 /* Bottom segment is the short one. */
229 int len = middle - bottom;
232 /* Swap it with the top part of the top segment. */
233 for (i = 0; i < len; i++)
235 tem = argv[bottom + i];
236 argv[bottom + i] = argv[top - (middle - bottom) + i];
237 argv[top - (middle - bottom) + i] = tem;
238 SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
240 /* Exclude the moved bottom segment from further swapping. */
245 /* Top segment is the short one. */
246 int len = top - middle;
249 /* Swap it with the bottom part of the bottom segment. */
250 for (i = 0; i < len; i++)
252 tem = argv[bottom + i];
253 argv[bottom + i] = argv[middle + i];
254 argv[middle + i] = tem;
255 SWAP_FLAGS (bottom + i, middle + i);
257 /* Exclude the moved top segment from further swapping. */
262 /* Update records for the slots the non-options now occupy. */
264 d->__first_nonopt += (d->optind - d->__last_nonopt);
265 d->__last_nonopt = d->optind;
268 /* Initialize the internal data when the first call is made. */
271 _getopt_initialize (int argc, char *const *argv, const char *optstring,
272 struct _getopt_data *d, int posixly_correct)
274 /* Start processing options with ARGV-element 1 (since ARGV-element 0
275 is the program name); the sequence of previously skipped
276 non-option ARGV-elements is empty. */
278 d->__first_nonopt = d->__last_nonopt = d->optind;
280 d->__nextchar = NULL;
282 d->__posixly_correct = posixly_correct | !!getenv ("POSIXLY_CORRECT");
284 /* Determine how to handle the ordering of options and nonoptions. */
286 if (optstring[0] == '-')
288 d->__ordering = RETURN_IN_ORDER;
291 else if (optstring[0] == '+')
293 d->__ordering = REQUIRE_ORDER;
296 else if (d->__posixly_correct)
297 d->__ordering = REQUIRE_ORDER;
299 d->__ordering = PERMUTE;
301 #if defined _LIBC && defined USE_NONOPTION_FLAGS
302 if (!d->__posixly_correct
303 && argc == __libc_argc && argv == __libc_argv)
305 if (d->__nonoption_flags_max_len == 0)
307 if (__getopt_nonoption_flags == NULL
308 || __getopt_nonoption_flags[0] == '\0')
309 d->__nonoption_flags_max_len = -1;
312 const char *orig_str = __getopt_nonoption_flags;
313 int len = d->__nonoption_flags_max_len = strlen (orig_str);
314 if (d->__nonoption_flags_max_len < argc)
315 d->__nonoption_flags_max_len = argc;
316 __getopt_nonoption_flags =
317 (char *) malloc (d->__nonoption_flags_max_len);
318 if (__getopt_nonoption_flags == NULL)
319 d->__nonoption_flags_max_len = -1;
321 memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
322 '\0', d->__nonoption_flags_max_len - len);
325 d->__nonoption_flags_len = d->__nonoption_flags_max_len;
328 d->__nonoption_flags_len = 0;
334 /* Scan elements of ARGV (whose length is ARGC) for option characters
337 If an element of ARGV starts with '-', and is not exactly "-" or "--",
338 then it is an option element. The characters of this element
339 (aside from the initial '-') are option characters. If `getopt'
340 is called repeatedly, it returns successively each of the option characters
341 from each of the option elements.
343 If `getopt' finds another option character, it returns that character,
344 updating `optind' and `nextchar' so that the next call to `getopt' can
345 resume the scan with the following option character or ARGV-element.
347 If there are no more option characters, `getopt' returns -1.
348 Then `optind' is the index in ARGV of the first ARGV-element
349 that is not an option. (The ARGV-elements have been permuted
350 so that those that are not options now come last.)
352 OPTSTRING is a string containing the legitimate option characters.
353 If an option character is seen that is not listed in OPTSTRING,
354 return '?' after printing an error message. If you set `opterr' to
355 zero, the error message is suppressed but we still return '?'.
357 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
358 so the following text in the same ARGV-element, or the text of the following
359 ARGV-element, is returned in `optarg'. Two colons mean an option that
360 wants an optional arg; if there is text in the current ARGV-element,
361 it is returned in `optarg', otherwise `optarg' is set to zero.
363 If OPTSTRING starts with `-' or `+', it requests different methods of
364 handling the non-option ARGV-elements.
365 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
367 Long-named options begin with `--' instead of `-'.
368 Their names may be abbreviated as long as the abbreviation is unique
369 or is an exact match for some defined option. If they have an
370 argument, it follows the option name in the same ARGV-element, separated
371 from the option name by a `=', or else the in next ARGV-element.
372 When `getopt' finds a long-named option, it returns 0 if that option's
373 `flag' field is nonzero, the value of the option's `val' field
374 if the `flag' field is zero.
376 The elements of ARGV aren't really const, because we permute them.
377 But we pretend they're const in the prototype to be compatible
380 LONGOPTS is a vector of `struct option' terminated by an
381 element containing a name which is zero.
383 LONGIND returns the index in LONGOPT of the long-named option found.
384 It is only valid when a long-named option has been found by the most
387 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
388 long-named options. */
391 _getopt_internal_r (int argc, char *const *argv, const char *optstring,
392 const struct option *longopts, int *longind,
393 int long_only, struct _getopt_data *d, int posixly_correct)
395 int print_errors = d->opterr;
402 if (d->optind == 0 || !d->__initialized)
405 d->optind = 1; /* Don't scan ARGV[0], the program name. */
406 optstring = _getopt_initialize (argc, argv, optstring, d,
408 d->__initialized = 1;
410 else if (optstring[0] == '-' || optstring[0] == '+')
412 if (optstring[0] == ':')
415 /* Test whether ARGV[optind] points to a non-option argument.
416 Either it does not have option syntax, or there is an environment flag
417 from the shell indicating it is not an option. The later information
418 is only used when the used in the GNU libc. */
419 #if defined _LIBC && defined USE_NONOPTION_FLAGS
420 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
421 || (d->optind < d->__nonoption_flags_len \
422 && __getopt_nonoption_flags[d->optind] == '1'))
424 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
427 if (d->__nextchar == NULL || *d->__nextchar == '\0')
429 /* Advance to the next ARGV-element. */
431 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
432 moved back by the user (who may also have changed the arguments). */
433 if (d->__last_nonopt > d->optind)
434 d->__last_nonopt = d->optind;
435 if (d->__first_nonopt > d->optind)
436 d->__first_nonopt = d->optind;
438 if (d->__ordering == PERMUTE)
440 /* If we have just processed some options following some non-options,
441 exchange them so that the options come first. */
443 if (d->__first_nonopt != d->__last_nonopt
444 && d->__last_nonopt != d->optind)
445 exchange ((char **) argv, d);
446 else if (d->__last_nonopt != d->optind)
447 d->__first_nonopt = d->optind;
449 /* Skip any additional non-options
450 and extend the range of non-options previously skipped. */
452 while (d->optind < argc && NONOPTION_P)
454 d->__last_nonopt = d->optind;
457 /* The special ARGV-element `--' means premature end of options.
458 Skip it like a null option,
459 then exchange with previous non-options as if it were an option,
460 then skip everything else like a non-option. */
462 if (d->optind != argc && !strcmp (argv[d->optind], "--"))
466 if (d->__first_nonopt != d->__last_nonopt
467 && d->__last_nonopt != d->optind)
468 exchange ((char **) argv, d);
469 else if (d->__first_nonopt == d->__last_nonopt)
470 d->__first_nonopt = d->optind;
471 d->__last_nonopt = argc;
476 /* If we have done all the ARGV-elements, stop the scan
477 and back over any non-options that we skipped and permuted. */
479 if (d->optind == argc)
481 /* Set the next-arg-index to point at the non-options
482 that we previously skipped, so the caller will digest them. */
483 if (d->__first_nonopt != d->__last_nonopt)
484 d->optind = d->__first_nonopt;
488 /* If we have come to a non-option and did not permute it,
489 either stop the scan or describe it to the caller and pass it by. */
493 if (d->__ordering == REQUIRE_ORDER)
495 d->optarg = argv[d->optind++];
499 /* We have found another option-ARGV-element.
500 Skip the initial punctuation. */
502 d->__nextchar = (argv[d->optind] + 1
503 + (longopts != NULL && argv[d->optind][1] == '-'));
506 /* Decode the current option-ARGV-element. */
508 /* Check whether the ARGV-element is a long option.
510 If long_only and the ARGV-element has the form "-f", where f is
511 a valid short option, don't consider it an abbreviated form of
512 a long option that starts with f. Otherwise there would be no
513 way to give the -f short option.
515 On the other hand, if there's a long option "fubar" and
516 the ARGV-element is "-fu", do consider that an abbreviation of
517 the long option, just like "--fu", and not "-f" with arg "u".
519 This distinction seems to be the most useful approach. */
522 && (argv[d->optind][1] == '-'
523 || (long_only && (argv[d->optind][2]
524 || !strchr (optstring, argv[d->optind][1])))))
527 unsigned int namelen;
528 const struct option *p;
529 const struct option *pfound = NULL;
532 const struct option *p;
533 struct option_list *next;
534 } *ambig_list = NULL;
539 for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
541 namelen = nameend - d->__nextchar;
543 /* Test all long options for either exact match
544 or abbreviated matches. */
545 for (p = longopts, option_index = 0; p->name; p++, option_index++)
546 if (!strncmp (p->name, d->__nextchar, namelen))
548 if (namelen == (unsigned int) strlen (p->name))
550 /* Exact match found. */
552 indfound = option_index;
556 else if (pfound == NULL)
558 /* First nonexact match found. */
560 indfound = option_index;
563 || pfound->has_arg != p->has_arg
564 || pfound->flag != p->flag
565 || pfound->val != p->val)
567 /* Second or later nonexact match found. */
568 struct option_list *newp = alloca (sizeof (*newp));
570 newp->next = ambig_list;
575 if (ambig_list != NULL && !exact)
579 struct option_list first;
581 first.next = ambig_list;
588 FILE *fp = open_memstream (&buf, &buflen);
592 _("%s: option '%s' is ambiguous; possibilities:"),
593 argv[0], argv[d->optind]);
597 fprintf (fp, " '--%s'", ambig_list->p->name);
598 ambig_list = ambig_list->next;
600 while (ambig_list != NULL);
602 fputc_unlocked ('\n', fp);
604 if (__glibc_likely (fclose (fp) != EOF))
606 _IO_flockfile (stderr);
608 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
609 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
611 __fxprintf (NULL, "%s", buf);
613 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
614 _IO_funlockfile (stderr);
621 _("%s: option '%s' is ambiguous; possibilities:"),
622 argv[0], argv[d->optind]);
625 fprintf (stderr, " '--%s'", ambig_list->p->name);
626 ambig_list = ambig_list->next;
628 while (ambig_list != NULL);
630 fputc ('\n', stderr);
633 d->__nextchar += strlen (d->__nextchar);
641 option_index = indfound;
645 /* Don't test has_arg with >, because some C compilers don't
646 allow it to be used on enums. */
648 d->optarg = nameend + 1;
658 if (argv[d->optind - 1][1] == '-')
662 n = __asprintf (&buf, _("\
663 %s: option '--%s' doesn't allow an argument\n"),
664 argv[0], pfound->name);
666 fprintf (stderr, _("\
667 %s: option '--%s' doesn't allow an argument\n"),
668 argv[0], pfound->name);
673 /* +option or -option */
675 n = __asprintf (&buf, _("\
676 %s: option '%c%s' doesn't allow an argument\n"),
677 argv[0], argv[d->optind - 1][0],
680 fprintf (stderr, _("\
681 %s: option '%c%s' doesn't allow an argument\n"),
682 argv[0], argv[d->optind - 1][0],
690 _IO_flockfile (stderr);
692 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
693 ((_IO_FILE *) stderr)->_flags2
694 |= _IO_FLAGS2_NOTCANCEL;
696 __fxprintf (NULL, "%s", buf);
698 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
699 _IO_funlockfile (stderr);
706 d->__nextchar += strlen (d->__nextchar);
708 d->optopt = pfound->val;
712 else if (pfound->has_arg == 1)
714 if (d->optind < argc)
715 d->optarg = argv[d->optind++];
723 if (__asprintf (&buf, _("\
724 %s: option '--%s' requires an argument\n"),
725 argv[0], pfound->name) >= 0)
727 _IO_flockfile (stderr);
729 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
730 ((_IO_FILE *) stderr)->_flags2
731 |= _IO_FLAGS2_NOTCANCEL;
733 __fxprintf (NULL, "%s", buf);
735 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
736 _IO_funlockfile (stderr);
742 _("%s: option '--%s' requires an argument\n"),
743 argv[0], pfound->name);
746 d->__nextchar += strlen (d->__nextchar);
747 d->optopt = pfound->val;
748 return optstring[0] == ':' ? ':' : '?';
751 d->__nextchar += strlen (d->__nextchar);
753 *longind = option_index;
756 *(pfound->flag) = pfound->val;
762 /* Can't find it as a long option. If this is not getopt_long_only,
763 or the option starts with '--' or is not a valid short
764 option, then it's an error.
765 Otherwise interpret it as a short option. */
766 if (!long_only || argv[d->optind][1] == '-'
767 || strchr (optstring, *d->__nextchar) == NULL)
776 if (argv[d->optind][1] == '-')
780 n = __asprintf (&buf, _("%s: unrecognized option '--%s'\n"),
781 argv[0], d->__nextchar);
783 fprintf (stderr, _("%s: unrecognized option '--%s'\n"),
784 argv[0], d->__nextchar);
789 /* +option or -option */
791 n = __asprintf (&buf, _("%s: unrecognized option '%c%s'\n"),
792 argv[0], argv[d->optind][0], d->__nextchar);
794 fprintf (stderr, _("%s: unrecognized option '%c%s'\n"),
795 argv[0], argv[d->optind][0], d->__nextchar);
802 _IO_flockfile (stderr);
804 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
805 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
807 __fxprintf (NULL, "%s", buf);
809 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
810 _IO_funlockfile (stderr);
816 d->__nextchar = (char *) "";
823 /* Look at and handle the next short option-character. */
826 char c = *d->__nextchar++;
827 char *temp = strchr (optstring, c);
829 /* Increment `optind' when we start to process its last character. */
830 if (*d->__nextchar == '\0')
833 if (temp == NULL || c == ':' || c == ';')
843 n = __asprintf (&buf, _("%s: invalid option -- '%c'\n"),
846 fprintf (stderr, _("%s: invalid option -- '%c'\n"), argv[0], c);
852 _IO_flockfile (stderr);
854 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
855 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
857 __fxprintf (NULL, "%s", buf);
859 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
860 _IO_funlockfile (stderr);
869 /* Convenience. Treat POSIX -W foo same as long option --foo */
870 if (temp[0] == 'W' && temp[1] == ';')
872 if (longopts == NULL)
876 const struct option *p;
877 const struct option *pfound = NULL;
883 /* This is an option that requires an argument. */
884 if (*d->__nextchar != '\0')
886 d->optarg = d->__nextchar;
887 /* If we end this ARGV-element by taking the rest as an arg,
888 we must advance to the next element now. */
891 else if (d->optind == argc)
898 if (__asprintf (&buf,
899 _("%s: option requires an argument -- '%c'\n"),
902 _IO_flockfile (stderr);
904 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
905 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
907 __fxprintf (NULL, "%s", buf);
909 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
910 _IO_funlockfile (stderr);
916 _("%s: option requires an argument -- '%c'\n"),
921 if (optstring[0] == ':')
928 /* We already incremented `d->optind' once;
929 increment it again when taking next ARGV-elt as argument. */
930 d->optarg = argv[d->optind++];
932 /* optarg is now the argument, see if it's in the
933 table of longopts. */
935 for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
939 /* Test all long options for either exact match
940 or abbreviated matches. */
941 for (p = longopts, option_index = 0; p->name; p++, option_index++)
942 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
944 if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
946 /* Exact match found. */
948 indfound = option_index;
952 else if (pfound == NULL)
954 /* First nonexact match found. */
956 indfound = option_index;
959 || pfound->has_arg != p->has_arg
960 || pfound->flag != p->flag
961 || pfound->val != p->val)
962 /* Second or later nonexact match found. */
972 if (__asprintf (&buf, _("%s: option '-W %s' is ambiguous\n"),
973 argv[0], d->optarg) >= 0)
975 _IO_flockfile (stderr);
977 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
978 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
980 __fxprintf (NULL, "%s", buf);
982 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
983 _IO_funlockfile (stderr);
988 fprintf (stderr, _("%s: option '-W %s' is ambiguous\n"),
992 d->__nextchar += strlen (d->__nextchar);
998 option_index = indfound;
1001 /* Don't test has_arg with >, because some C compilers don't
1002 allow it to be used on enums. */
1003 if (pfound->has_arg)
1004 d->optarg = nameend + 1;
1012 if (__asprintf (&buf, _("\
1013 %s: option '-W %s' doesn't allow an argument\n"),
1014 argv[0], pfound->name) >= 0)
1016 _IO_flockfile (stderr);
1018 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1019 ((_IO_FILE *) stderr)->_flags2
1020 |= _IO_FLAGS2_NOTCANCEL;
1022 __fxprintf (NULL, "%s", buf);
1024 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1025 _IO_funlockfile (stderr);
1030 fprintf (stderr, _("\
1031 %s: option '-W %s' doesn't allow an argument\n"),
1032 argv[0], pfound->name);
1036 d->__nextchar += strlen (d->__nextchar);
1040 else if (pfound->has_arg == 1)
1042 if (d->optind < argc)
1043 d->optarg = argv[d->optind++];
1051 if (__asprintf (&buf, _("\
1052 %s: option '-W %s' requires an argument\n"),
1053 argv[0], pfound->name) >= 0)
1055 _IO_flockfile (stderr);
1057 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1058 ((_IO_FILE *) stderr)->_flags2
1059 |= _IO_FLAGS2_NOTCANCEL;
1061 __fxprintf (NULL, "%s", buf);
1063 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1064 _IO_funlockfile (stderr);
1069 fprintf (stderr, _("\
1070 %s: option '-W %s' requires an argument\n"),
1071 argv[0], pfound->name);
1074 d->__nextchar += strlen (d->__nextchar);
1075 return optstring[0] == ':' ? ':' : '?';
1080 d->__nextchar += strlen (d->__nextchar);
1081 if (longind != NULL)
1082 *longind = option_index;
1085 *(pfound->flag) = pfound->val;
1092 d->__nextchar = NULL;
1093 return 'W'; /* Let the application handle it. */
1099 /* This is an option that accepts an argument optionally. */
1100 if (*d->__nextchar != '\0')
1102 d->optarg = d->__nextchar;
1107 d->__nextchar = NULL;
1111 /* This is an option that requires an argument. */
1112 if (*d->__nextchar != '\0')
1114 d->optarg = d->__nextchar;
1115 /* If we end this ARGV-element by taking the rest as an arg,
1116 we must advance to the next element now. */
1119 else if (d->optind == argc)
1126 if (__asprintf (&buf, _("\
1127 %s: option requires an argument -- '%c'\n"),
1130 _IO_flockfile (stderr);
1132 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1133 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
1135 __fxprintf (NULL, "%s", buf);
1137 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1138 _IO_funlockfile (stderr);
1144 _("%s: option requires an argument -- '%c'\n"),
1149 if (optstring[0] == ':')
1155 /* We already incremented `optind' once;
1156 increment it again when taking next ARGV-elt as argument. */
1157 d->optarg = argv[d->optind++];
1158 d->__nextchar = NULL;
1166 _getopt_internal (int argc, char *const *argv, const char *optstring,
1167 const struct option *longopts, int *longind, int long_only,
1168 int posixly_correct)
1172 getopt_data.optind = optind;
1173 getopt_data.opterr = opterr;
1175 result = _getopt_internal_r (argc, argv, optstring, longopts,
1176 longind, long_only, &getopt_data,
1179 optind = getopt_data.optind;
1180 optarg = getopt_data.optarg;
1181 optopt = getopt_data.optopt;
1187 getopt (int argc, char *const *argv, const char *optstring)
1189 return _getopt_internal (argc, argv, optstring,
1190 (const struct option *) 0,
1197 __posix_getopt (int argc, char *const *argv, const char *optstring)
1199 return _getopt_internal (argc, argv, optstring,
1200 (const struct option *) 0,
1206 #endif /* Not ELIDE_CODE. */
1210 /* Compile with -DTEST to make an executable for use in testing
1211 the above definition of `getopt'. */
1214 main (int argc, char **argv)
1217 int digit_optind = 0;
1221 int this_option_optind = optind ? optind : 1;
1223 c = getopt (argc, argv, "abc:d:0123456789");
1239 if (digit_optind != 0 && digit_optind != this_option_optind)
1240 printf ("digits occur in two different argv-elements.\n");
1241 digit_optind = this_option_optind;
1242 printf ("option %c\n", c);
1246 printf ("option a\n");
1250 printf ("option b\n");
1254 printf ("option c with value '%s'\n", optarg);
1261 printf ("?? getopt returned character code 0%o ??\n", c);
1267 printf ("non-option ARGV-elements: ");
1268 while (optind < argc)
1269 printf ("%s ", argv[optind++]);