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) 1987-2014 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
50 /* !@#$%^&*() !!!!!!!! */
58 /* This needs to come after some library #include
59 to get __GNU_LIBRARY__ defined. */
60 #if defined (__GNU_LIBRARY__) || defined (__CYGWIN__) || defined(__DJGPP__) || defined(__APPLE__) || defined(__MINGW32__) || defined(__sun) /* Illumos */
61 /* Don't include stdlib.h for
66 * because some of them contain conflicting prototypes for getopt. */
69 #endif /* GNU C library. */
81 # define _(msgid) gettext (msgid)
88 #ifndef attribute_hidden
89 # define attribute_hidden
92 /* This version of `getopt' appears to the caller like standard Unix `getopt'
93 but it behaves differently for the user, since it allows the user
94 to intersperse the options with the other arguments.
96 As `getopt' works, it permutes the elements of ARGV so that,
97 when it is done, all the options precede everything else. Thus
98 all application programs are extended to handle flexible argument order.
100 Setting the environment variable POSIXLY_CORRECT disables permutation.
101 Then the behavior is completely standard.
103 GNU application programs can use a third alternative mode in which
104 they can distinguish the relative order of options and other arguments. */
107 #include "getopt_int.h"
109 /* For communication from `getopt' to the caller.
110 When `getopt' finds an option that takes an argument,
111 the argument value is returned here.
112 Also, when `ordering' is RETURN_IN_ORDER,
113 each non-option ARGV-element is returned here. */
117 /* Index in ARGV of the next element to be scanned.
118 This is used for communication to and from the caller
119 and for communication between successive calls to `getopt'.
121 On entry to `getopt', zero means this is the first call; initialize.
123 When `getopt' returns -1, this is the index of the first of the
124 non-option elements that the caller should itself scan.
126 Otherwise, `optind' communicates from one call to the next
127 how much of ARGV has been scanned so far. */
129 /* 1003.2 says this must be 1 before any call. */
132 /* Callers store zero here to inhibit the error message
133 for unrecognized options. */
137 /* Set to an option character which was unrecognized.
138 This must be initialized on some systems to avoid linking in the
139 system's own getopt implementation. */
143 /* Keep a global copy of all internal members of getopt_data. */
145 static struct _getopt_data getopt_data;
148 #ifndef __GNU_LIBRARY__
150 /* Avoid depending on library functions or files
151 whose names are inconsistent. */
154 extern char *getenv ();
157 #endif /* not __GNU_LIBRARY__ */
160 /* Stored original parameters.
161 XXX This is no good solution. We should rather copy the args so
162 that we can compare them later. But we must not use malloc(3). */
163 extern int __libc_argc;
164 extern char **__libc_argv;
166 /* Bash 2.0 gives us an environment variable containing flags
167 indicating ARGV elements that should not be considered arguments. */
169 # ifdef USE_NONOPTION_FLAGS
170 /* Defined in getopt_init.c */
171 extern char *__getopt_nonoption_flags;
174 # ifdef USE_NONOPTION_FLAGS
175 # define SWAP_FLAGS(ch1, ch2) \
176 if (d->__nonoption_flags_len > 0) \
178 char __tmp = __getopt_nonoption_flags[ch1]; \
179 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
180 __getopt_nonoption_flags[ch2] = __tmp; \
183 # define SWAP_FLAGS(ch1, ch2)
186 # define SWAP_FLAGS(ch1, ch2)
189 /* Exchange two adjacent subsequences of ARGV.
190 One subsequence is elements [first_nonopt,last_nonopt)
191 which contains all the non-options that have been skipped so far.
192 The other is elements [last_nonopt,optind), which contains all
193 the options processed since those non-options were skipped.
195 `first_nonopt' and `last_nonopt' are relocated so that they describe
196 the new indices of the non-options in ARGV after they are moved. */
199 exchange (char **argv, struct _getopt_data *d)
201 int bottom = d->__first_nonopt;
202 int middle = d->__last_nonopt;
206 /* Exchange the shorter segment with the far end of the longer segment.
207 That puts the shorter segment into the right place.
208 It leaves the longer segment in the right place overall,
209 but it consists of two parts that need to be swapped next. */
211 #if defined _LIBC && defined USE_NONOPTION_FLAGS
212 /* First make sure the handling of the `__getopt_nonoption_flags'
213 string can work normally. Our top argument must be in the range
215 if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
217 /* We must extend the array. The user plays games with us and
218 presents new arguments. */
219 char *new_str = malloc (top + 1);
221 d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
224 memset (__mempcpy (new_str, __getopt_nonoption_flags,
225 d->__nonoption_flags_max_len),
226 '\0', top + 1 - d->__nonoption_flags_max_len);
227 d->__nonoption_flags_max_len = top + 1;
228 __getopt_nonoption_flags = new_str;
233 while (top > middle && middle > bottom)
235 if (top - middle > middle - bottom)
237 /* Bottom segment is the short one. */
238 int len = middle - bottom;
241 /* Swap it with the top part of the top segment. */
242 for (i = 0; i < len; i++)
244 tem = argv[bottom + i];
245 argv[bottom + i] = argv[top - (middle - bottom) + i];
246 argv[top - (middle - bottom) + i] = tem;
247 SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
249 /* Exclude the moved bottom segment from further swapping. */
254 /* Top segment is the short one. */
255 int len = top - middle;
258 /* Swap it with the bottom part of the bottom segment. */
259 for (i = 0; i < len; i++)
261 tem = argv[bottom + i];
262 argv[bottom + i] = argv[middle + i];
263 argv[middle + i] = tem;
264 SWAP_FLAGS (bottom + i, middle + i);
266 /* Exclude the moved top segment from further swapping. */
271 /* Update records for the slots the non-options now occupy. */
273 d->__first_nonopt += (d->optind - d->__last_nonopt);
274 d->__last_nonopt = d->optind;
277 /* Initialize the internal data when the first call is made. */
280 _getopt_initialize (int argc, char *const *argv, const char *optstring,
281 struct _getopt_data *d, int posixly_correct)
283 /* Start processing options with ARGV-element 1 (since ARGV-element 0
284 is the program name); the sequence of previously skipped
285 non-option ARGV-elements is empty. */
287 d->__first_nonopt = d->__last_nonopt = d->optind;
289 d->__nextchar = NULL;
291 d->__posixly_correct = posixly_correct | !!getenv ("POSIXLY_CORRECT");
293 /* Determine how to handle the ordering of options and nonoptions. */
295 if (optstring[0] == '-')
297 d->__ordering = RETURN_IN_ORDER;
300 else if (optstring[0] == '+')
302 d->__ordering = REQUIRE_ORDER;
305 else if (d->__posixly_correct)
306 d->__ordering = REQUIRE_ORDER;
308 d->__ordering = PERMUTE;
310 #if defined _LIBC && defined USE_NONOPTION_FLAGS
311 if (!d->__posixly_correct
312 && argc == __libc_argc && argv == __libc_argv)
314 if (d->__nonoption_flags_max_len == 0)
316 if (__getopt_nonoption_flags == NULL
317 || __getopt_nonoption_flags[0] == '\0')
318 d->__nonoption_flags_max_len = -1;
321 const char *orig_str = __getopt_nonoption_flags;
322 int len = d->__nonoption_flags_max_len = strlen (orig_str);
323 if (d->__nonoption_flags_max_len < argc)
324 d->__nonoption_flags_max_len = argc;
325 __getopt_nonoption_flags =
326 (char *) malloc (d->__nonoption_flags_max_len);
327 if (__getopt_nonoption_flags == NULL)
328 d->__nonoption_flags_max_len = -1;
330 memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
331 '\0', d->__nonoption_flags_max_len - len);
334 d->__nonoption_flags_len = d->__nonoption_flags_max_len;
337 d->__nonoption_flags_len = 0;
343 /* Scan elements of ARGV (whose length is ARGC) for option characters
346 If an element of ARGV starts with '-', and is not exactly "-" or "--",
347 then it is an option element. The characters of this element
348 (aside from the initial '-') are option characters. If `getopt'
349 is called repeatedly, it returns successively each of the option characters
350 from each of the option elements.
352 If `getopt' finds another option character, it returns that character,
353 updating `optind' and `nextchar' so that the next call to `getopt' can
354 resume the scan with the following option character or ARGV-element.
356 If there are no more option characters, `getopt' returns -1.
357 Then `optind' is the index in ARGV of the first ARGV-element
358 that is not an option. (The ARGV-elements have been permuted
359 so that those that are not options now come last.)
361 OPTSTRING is a string containing the legitimate option characters.
362 If an option character is seen that is not listed in OPTSTRING,
363 return '?' after printing an error message. If you set `opterr' to
364 zero, the error message is suppressed but we still return '?'.
366 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
367 so the following text in the same ARGV-element, or the text of the following
368 ARGV-element, is returned in `optarg'. Two colons mean an option that
369 wants an optional arg; if there is text in the current ARGV-element,
370 it is returned in `optarg', otherwise `optarg' is set to zero.
372 If OPTSTRING starts with `-' or `+', it requests different methods of
373 handling the non-option ARGV-elements.
374 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
376 Long-named options begin with `--' instead of `-'.
377 Their names may be abbreviated as long as the abbreviation is unique
378 or is an exact match for some defined option. If they have an
379 argument, it follows the option name in the same ARGV-element, separated
380 from the option name by a `=', or else the in next ARGV-element.
381 When `getopt' finds a long-named option, it returns 0 if that option's
382 `flag' field is nonzero, the value of the option's `val' field
383 if the `flag' field is zero.
385 The elements of ARGV aren't really const, because we permute them.
386 But we pretend they're const in the prototype to be compatible
389 LONGOPTS is a vector of `struct option' terminated by an
390 element containing a name which is zero.
392 LONGIND returns the index in LONGOPT of the long-named option found.
393 It is only valid when a long-named option has been found by the most
396 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
397 long-named options. */
400 _getopt_internal_r (int argc, char *const *argv, const char *optstring,
401 const struct option *longopts, int *longind,
402 int long_only, struct _getopt_data *d, int posixly_correct)
404 int print_errors = d->opterr;
411 if (d->optind == 0 || !d->__initialized)
414 d->optind = 1; /* Don't scan ARGV[0], the program name. */
415 optstring = _getopt_initialize (argc, argv, optstring, d,
417 d->__initialized = 1;
419 else if (optstring[0] == '-' || optstring[0] == '+')
421 if (optstring[0] == ':')
424 /* Test whether ARGV[optind] points to a non-option argument.
425 Either it does not have option syntax, or there is an environment flag
426 from the shell indicating it is not an option. The later information
427 is only used when the used in the GNU libc. */
428 #if defined _LIBC && defined USE_NONOPTION_FLAGS
429 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
430 || (d->optind < d->__nonoption_flags_len \
431 && __getopt_nonoption_flags[d->optind] == '1'))
433 # define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
436 if (d->__nextchar == NULL || *d->__nextchar == '\0')
438 /* Advance to the next ARGV-element. */
440 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
441 moved back by the user (who may also have changed the arguments). */
442 if (d->__last_nonopt > d->optind)
443 d->__last_nonopt = d->optind;
444 if (d->__first_nonopt > d->optind)
445 d->__first_nonopt = d->optind;
447 if (d->__ordering == PERMUTE)
449 /* If we have just processed some options following some non-options,
450 exchange them so that the options come first. */
452 if (d->__first_nonopt != d->__last_nonopt
453 && d->__last_nonopt != d->optind)
454 exchange ((char **) argv, d);
455 else if (d->__last_nonopt != d->optind)
456 d->__first_nonopt = d->optind;
458 /* Skip any additional non-options
459 and extend the range of non-options previously skipped. */
461 while (d->optind < argc && NONOPTION_P)
463 d->__last_nonopt = d->optind;
466 /* The special ARGV-element `--' means premature end of options.
467 Skip it like a null option,
468 then exchange with previous non-options as if it were an option,
469 then skip everything else like a non-option. */
471 if (d->optind != argc && !strcmp (argv[d->optind], "--"))
475 if (d->__first_nonopt != d->__last_nonopt
476 && d->__last_nonopt != d->optind)
477 exchange ((char **) argv, d);
478 else if (d->__first_nonopt == d->__last_nonopt)
479 d->__first_nonopt = d->optind;
480 d->__last_nonopt = argc;
485 /* If we have done all the ARGV-elements, stop the scan
486 and back over any non-options that we skipped and permuted. */
488 if (d->optind == argc)
490 /* Set the next-arg-index to point at the non-options
491 that we previously skipped, so the caller will digest them. */
492 if (d->__first_nonopt != d->__last_nonopt)
493 d->optind = d->__first_nonopt;
497 /* If we have come to a non-option and did not permute it,
498 either stop the scan or describe it to the caller and pass it by. */
502 if (d->__ordering == REQUIRE_ORDER)
504 d->optarg = argv[d->optind++];
508 /* We have found another option-ARGV-element.
509 Skip the initial punctuation. */
511 d->__nextchar = (argv[d->optind] + 1
512 + (longopts != NULL && argv[d->optind][1] == '-'));
515 /* Decode the current option-ARGV-element. */
517 /* Check whether the ARGV-element is a long option.
519 If long_only and the ARGV-element has the form "-f", where f is
520 a valid short option, don't consider it an abbreviated form of
521 a long option that starts with f. Otherwise there would be no
522 way to give the -f short option.
524 On the other hand, if there's a long option "fubar" and
525 the ARGV-element is "-fu", do consider that an abbreviation of
526 the long option, just like "--fu", and not "-f" with arg "u".
528 This distinction seems to be the most useful approach. */
531 && (argv[d->optind][1] == '-'
532 || (long_only && (argv[d->optind][2]
533 || !strchr (optstring, argv[d->optind][1])))))
536 unsigned int namelen;
537 const struct option *p;
538 const struct option *pfound = NULL;
541 const struct option *p;
542 struct option_list *next;
544 } *ambig_list = NULL;
549 for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
551 namelen = nameend - d->__nextchar;
553 /* Test all long options for either exact match
554 or abbreviated matches. */
555 for (p = longopts, option_index = 0; p->name; p++, option_index++)
556 if (!strncmp (p->name, d->__nextchar, namelen))
558 if (namelen == (unsigned int) strlen (p->name))
560 /* Exact match found. */
562 indfound = option_index;
566 else if (pfound == NULL)
568 /* First nonexact match found. */
570 indfound = option_index;
573 || pfound->has_arg != p->has_arg
574 || pfound->flag != p->flag
575 || pfound->val != p->val)
577 /* Second or later nonexact match found. */
578 struct option_list *newp = malloc (sizeof (*newp));
580 newp->needs_free = 1;
581 newp->next = ambig_list;
586 if (ambig_list != NULL && !exact)
590 struct option_list first;
592 first.next = ambig_list;
593 first.needs_free = 0;
600 FILE *fp = open_memstream (&buf, &buflen);
604 _("%s: option '%s' is ambiguous; possibilities:"),
605 argv[0], argv[d->optind]);
609 fprintf (fp, " '--%s'", ambig_list->p->name);
610 ambig_list = ambig_list->next;
612 while (ambig_list != NULL);
614 fputc_unlocked ('\n', fp);
616 if (__builtin_expect (fclose (fp) != EOF, 1))
618 _IO_flockfile (stderr);
620 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
621 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
623 __fxprintf (NULL, "%s", buf);
625 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
626 _IO_funlockfile (stderr);
633 _("%s: option '%s' is ambiguous; possibilities:"),
634 argv[0], argv[d->optind]);
637 struct option_list *tmp_next;
639 fprintf (stderr, " '--%s'", ambig_list->p->name);
640 tmp_next = ambig_list->next;
641 if (ambig_list->needs_free)
643 ambig_list = tmp_next;
645 while (ambig_list != NULL);
647 fputc ('\n', stderr);
650 d->__nextchar += strlen (d->__nextchar);
658 option_index = indfound;
662 /* Don't test has_arg with >, because some C compilers don't
663 allow it to be used on enums. */
665 d->optarg = nameend + 1;
675 if (argv[d->optind - 1][1] == '-')
679 n = __asprintf (&buf, _("\
680 %s: option '--%s' doesn't allow an argument\n"),
681 argv[0], pfound->name);
683 fprintf (stderr, _("\
684 %s: option '--%s' doesn't allow an argument\n"),
685 argv[0], pfound->name);
690 /* +option or -option */
692 n = __asprintf (&buf, _("\
693 %s: option '%c%s' doesn't allow an argument\n"),
694 argv[0], argv[d->optind - 1][0],
697 fprintf (stderr, _("\
698 %s: option '%c%s' doesn't allow an argument\n"),
699 argv[0], argv[d->optind - 1][0],
707 _IO_flockfile (stderr);
709 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
710 ((_IO_FILE *) stderr)->_flags2
711 |= _IO_FLAGS2_NOTCANCEL;
713 __fxprintf (NULL, "%s", buf);
715 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
716 _IO_funlockfile (stderr);
723 d->__nextchar += strlen (d->__nextchar);
725 d->optopt = pfound->val;
729 else if (pfound->has_arg == 1)
731 if (d->optind < argc)
732 d->optarg = argv[d->optind++];
740 if (__asprintf (&buf, _("\
741 %s: option '--%s' requires an argument\n"),
742 argv[0], pfound->name) >= 0)
744 _IO_flockfile (stderr);
746 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
747 ((_IO_FILE *) stderr)->_flags2
748 |= _IO_FLAGS2_NOTCANCEL;
750 __fxprintf (NULL, "%s", buf);
752 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
753 _IO_funlockfile (stderr);
759 _("%s: option '--%s' requires an argument\n"),
760 argv[0], pfound->name);
763 d->__nextchar += strlen (d->__nextchar);
764 d->optopt = pfound->val;
765 return optstring[0] == ':' ? ':' : '?';
768 d->__nextchar += strlen (d->__nextchar);
770 *longind = option_index;
773 *(pfound->flag) = pfound->val;
779 /* Can't find it as a long option. If this is not getopt_long_only,
780 or the option starts with '--' or is not a valid short
781 option, then it's an error.
782 Otherwise interpret it as a short option. */
783 if (!long_only || argv[d->optind][1] == '-'
784 || strchr (optstring, *d->__nextchar) == NULL)
793 if (argv[d->optind][1] == '-')
797 n = __asprintf (&buf, _("%s: unrecognized option '--%s'\n"),
798 argv[0], d->__nextchar);
800 fprintf (stderr, _("%s: unrecognized option '--%s'\n"),
801 argv[0], d->__nextchar);
806 /* +option or -option */
808 n = __asprintf (&buf, _("%s: unrecognized option '%c%s'\n"),
809 argv[0], argv[d->optind][0], d->__nextchar);
811 fprintf (stderr, _("%s: unrecognized option '%c%s'\n"),
812 argv[0], argv[d->optind][0], d->__nextchar);
819 _IO_flockfile (stderr);
821 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
822 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
824 __fxprintf (NULL, "%s", buf);
826 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
827 _IO_funlockfile (stderr);
833 d->__nextchar = (char *) "";
840 /* Look at and handle the next short option-character. */
843 char c = *d->__nextchar++;
844 char *temp = strchr (optstring, c);
846 /* Increment `optind' when we start to process its last character. */
847 if (*d->__nextchar == '\0')
850 if (temp == NULL || c == ':' || c == ';')
860 n = __asprintf (&buf, _("%s: invalid option -- '%c'\n"),
863 fprintf (stderr, _("%s: invalid option -- '%c'\n"), argv[0], c);
869 _IO_flockfile (stderr);
871 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
872 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
874 __fxprintf (NULL, "%s", buf);
876 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
877 _IO_funlockfile (stderr);
886 /* Convenience. Treat POSIX -W foo same as long option --foo */
887 if (temp[0] == 'W' && temp[1] == ';')
890 const struct option *p;
891 const struct option *pfound = NULL;
897 if (longopts == NULL)
900 /* This is an option that requires an argument. */
901 if (*d->__nextchar != '\0')
903 d->optarg = d->__nextchar;
904 /* If we end this ARGV-element by taking the rest as an arg,
905 we must advance to the next element now. */
908 else if (d->optind == argc)
915 if (__asprintf (&buf,
916 _("%s: option requires an argument -- '%c'\n"),
919 _IO_flockfile (stderr);
921 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
922 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
924 __fxprintf (NULL, "%s", buf);
926 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
927 _IO_funlockfile (stderr);
933 _("%s: option requires an argument -- '%c'\n"),
938 if (optstring[0] == ':')
945 /* We already incremented `d->optind' once;
946 increment it again when taking next ARGV-elt as argument. */
947 d->optarg = argv[d->optind++];
949 /* optarg is now the argument, see if it's in the
950 table of longopts. */
952 for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
956 /* Test all long options for either exact match
957 or abbreviated matches. */
958 for (p = longopts, option_index = 0; p->name; p++, option_index++)
959 if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
961 if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
963 /* Exact match found. */
965 indfound = option_index;
969 else if (pfound == NULL)
971 /* First nonexact match found. */
973 indfound = option_index;
976 || pfound->has_arg != p->has_arg
977 || pfound->flag != p->flag
978 || pfound->val != p->val)
979 /* Second or later nonexact match found. */
989 if (__asprintf (&buf, _("%s: option '-W %s' is ambiguous\n"),
990 argv[0], d->optarg) >= 0)
992 _IO_flockfile (stderr);
994 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
995 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
997 __fxprintf (NULL, "%s", buf);
999 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1000 _IO_funlockfile (stderr);
1005 fprintf (stderr, _("%s: option '-W %s' is ambiguous\n"),
1006 argv[0], d->optarg);
1009 d->__nextchar += strlen (d->__nextchar);
1015 option_index = indfound;
1018 /* Don't test has_arg with >, because some C compilers don't
1019 allow it to be used on enums. */
1020 if (pfound->has_arg)
1021 d->optarg = nameend + 1;
1029 if (__asprintf (&buf, _("\
1030 %s: option '-W %s' doesn't allow an argument\n"),
1031 argv[0], pfound->name) >= 0)
1033 _IO_flockfile (stderr);
1035 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1036 ((_IO_FILE *) stderr)->_flags2
1037 |= _IO_FLAGS2_NOTCANCEL;
1039 __fxprintf (NULL, "%s", buf);
1041 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1042 _IO_funlockfile (stderr);
1047 fprintf (stderr, _("\
1048 %s: option '-W %s' doesn't allow an argument\n"),
1049 argv[0], pfound->name);
1053 d->__nextchar += strlen (d->__nextchar);
1057 else if (pfound->has_arg == 1)
1059 if (d->optind < argc)
1060 d->optarg = argv[d->optind++];
1068 if (__asprintf (&buf, _("\
1069 %s: option '-W %s' requires an argument\n"),
1070 argv[0], pfound->name) >= 0)
1072 _IO_flockfile (stderr);
1074 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1075 ((_IO_FILE *) stderr)->_flags2
1076 |= _IO_FLAGS2_NOTCANCEL;
1078 __fxprintf (NULL, "%s", buf);
1080 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1081 _IO_funlockfile (stderr);
1086 fprintf (stderr, _("\
1087 %s: option '-W %s' requires an argument\n"),
1088 argv[0], pfound->name);
1091 d->__nextchar += strlen (d->__nextchar);
1092 return optstring[0] == ':' ? ':' : '?';
1097 d->__nextchar += strlen (d->__nextchar);
1098 if (longind != NULL)
1099 *longind = option_index;
1102 *(pfound->flag) = pfound->val;
1109 d->__nextchar = NULL;
1110 return 'W'; /* Let the application handle it. */
1116 /* This is an option that accepts an argument optionally. */
1117 if (*d->__nextchar != '\0')
1119 d->optarg = d->__nextchar;
1124 d->__nextchar = NULL;
1128 /* This is an option that requires an argument. */
1129 if (*d->__nextchar != '\0')
1131 d->optarg = d->__nextchar;
1132 /* If we end this ARGV-element by taking the rest as an arg,
1133 we must advance to the next element now. */
1136 else if (d->optind == argc)
1143 if (__asprintf (&buf, _("\
1144 %s: option requires an argument -- '%c'\n"),
1147 _IO_flockfile (stderr);
1149 int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1150 ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
1152 __fxprintf (NULL, "%s", buf);
1154 ((_IO_FILE *) stderr)->_flags2 = old_flags2;
1155 _IO_funlockfile (stderr);
1161 _("%s: option requires an argument -- '%c'\n"),
1166 if (optstring[0] == ':')
1172 /* We already incremented `optind' once;
1173 increment it again when taking next ARGV-elt as argument. */
1174 d->optarg = argv[d->optind++];
1175 d->__nextchar = NULL;
1183 _getopt_internal (int argc, char *const *argv, const char *optstring,
1184 const struct option *longopts, int *longind, int long_only,
1185 int posixly_correct)
1189 getopt_data.optind = optind;
1190 getopt_data.opterr = opterr;
1192 result = _getopt_internal_r (argc, argv, optstring, longopts,
1193 longind, long_only, &getopt_data,
1196 optind = getopt_data.optind;
1197 optarg = getopt_data.optarg;
1198 optopt = getopt_data.optopt;
1204 getopt (int argc, char *const *argv, const char *optstring)
1206 return _getopt_internal (argc, argv, optstring,
1207 (const struct option *) 0,
1214 __posix_getopt (int argc, char *const *argv, const char *optstring)
1216 return _getopt_internal (argc, argv, optstring,
1217 (const struct option *) 0,
1223 #endif /* Not ELIDE_CODE. */
1227 /* Compile with -DTEST to make an executable for use in testing
1228 the above definition of `getopt'. */
1231 main (int argc, char **argv)
1234 int digit_optind = 0;
1238 int this_option_optind = optind ? optind : 1;
1240 c = getopt (argc, argv, "abc:d:0123456789");
1256 if (digit_optind != 0 && digit_optind != this_option_optind)
1257 printf ("digits occur in two different argv-elements.\n");
1258 digit_optind = this_option_optind;
1259 printf ("option %c\n", c);
1263 printf ("option a\n");
1267 printf ("option b\n");
1271 printf ("option c with value '%s'\n", optarg);
1278 printf ("?? getopt returned character code 0%o ??\n", c);
1284 printf ("non-option ARGV-elements: ");
1285 while (optind < argc)
1286 printf ("%s ", argv[optind++]);