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
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.
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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, char **argv, const char *optstring,
229
int posixly_correct, struct _getopt_data *d)
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
LONGOPTS is a vector of `struct option' terminated by an
334
element containing a name which is zero.
336
LONGIND returns the index in LONGOPT of the long-named option found.
337
It is only valid when a long-named option has been found by the most
340
If LONG_ONLY is nonzero, '-' as well as '--' can introduce
343
If POSIXLY_CORRECT is nonzero, behave as if the POSIXLY_CORRECT
344
environment variable were set. */
347
_getopt_internal_r (int argc, char **argv, const char *optstring,
348
const struct option *longopts, int *longind,
349
int long_only, int posixly_correct, struct _getopt_data *d)
351
int print_errors = d->opterr;
352
if (optstring[0] == ':')
360
if (d->optind == 0 || !d->__initialized)
363
d->optind = 1; /* Don't scan ARGV[0], the program name. */
364
optstring = _getopt_initialize (argc, argv, optstring,
366
d->__initialized = 1;
369
/* Test whether ARGV[optind] points to a non-option argument.
370
Either it does not have option syntax, or there is an environment flag
371
from the shell indicating it is not an option. The later information
372
is only used when the used in the GNU libc. */
373
#if defined _LIBC && defined USE_NONOPTION_FLAGS
374
# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
375
|| (d->optind < d->__nonoption_flags_len \
376
&& __getopt_nonoption_flags[d->optind] == '1'))
378
# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
381
if (d->__nextchar == NULL || *d->__nextchar == '\0')
383
/* Advance to the next ARGV-element. */
385
/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
386
moved back by the user (who may also have changed the arguments). */
387
if (d->__last_nonopt > d->optind)
388
d->__last_nonopt = d->optind;
389
if (d->__first_nonopt > d->optind)
390
d->__first_nonopt = d->optind;
392
if (d->__ordering == PERMUTE)
394
/* If we have just processed some options following some non-options,
395
exchange them so that the options come first. */
397
if (d->__first_nonopt != d->__last_nonopt
398
&& d->__last_nonopt != d->optind)
399
exchange ((char **) argv, d);
400
else if (d->__last_nonopt != d->optind)
401
d->__first_nonopt = d->optind;
403
/* Skip any additional non-options
404
and extend the range of non-options previously skipped. */
406
while (d->optind < argc && NONOPTION_P)
408
d->__last_nonopt = d->optind;
411
/* The special ARGV-element `--' means premature end of options.
412
Skip it like a null option,
413
then exchange with previous non-options as if it were an option,
414
then skip everything else like a non-option. */
416
if (d->optind != argc && !strcmp (argv[d->optind], "--"))
420
if (d->__first_nonopt != d->__last_nonopt
421
&& d->__last_nonopt != d->optind)
422
exchange ((char **) argv, d);
423
else if (d->__first_nonopt == d->__last_nonopt)
424
d->__first_nonopt = d->optind;
425
d->__last_nonopt = argc;
430
/* If we have done all the ARGV-elements, stop the scan
431
and back over any non-options that we skipped and permuted. */
433
if (d->optind == argc)
435
/* Set the next-arg-index to point at the non-options
436
that we previously skipped, so the caller will digest them. */
437
if (d->__first_nonopt != d->__last_nonopt)
438
d->optind = d->__first_nonopt;
442
/* If we have come to a non-option and did not permute it,
443
either stop the scan or describe it to the caller and pass it by. */
447
if (d->__ordering == REQUIRE_ORDER)
449
d->optarg = argv[d->optind++];
453
/* We have found another option-ARGV-element.
454
Skip the initial punctuation. */
456
d->__nextchar = (argv[d->optind] + 1
457
+ (longopts != NULL && argv[d->optind][1] == '-'));
460
/* Decode the current option-ARGV-element. */
462
/* Check whether the ARGV-element is a long option.
464
If long_only and the ARGV-element has the form "-f", where f is
465
a valid short option, don't consider it an abbreviated form of
466
a long option that starts with f. Otherwise there would be no
467
way to give the -f short option.
469
On the other hand, if there's a long option "fubar" and
470
the ARGV-element is "-fu", do consider that an abbreviation of
471
the long option, just like "--fu", and not "-f" with arg "u".
473
This distinction seems to be the most useful approach. */
476
&& (argv[d->optind][1] == '-'
477
|| (long_only && (argv[d->optind][2]
478
|| !strchr (optstring, argv[d->optind][1])))))
481
const struct option *p;
482
const struct option *pfound = NULL;
488
for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
491
/* Test all long options for either exact match
492
or abbreviated matches. */
493
for (p = longopts, option_index = 0; p->name; p++, option_index++)
494
if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
496
if ((unsigned int) (nameend - d->__nextchar)
497
== (unsigned int) strlen (p->name))
499
/* Exact match found. */
501
indfound = option_index;
505
else if (pfound == NULL)
507
/* First nonexact match found. */
509
indfound = option_index;
512
|| pfound->has_arg != p->has_arg
513
|| pfound->flag != p->flag
514
|| pfound->val != p->val)
515
/* Second or later nonexact match found. */
523
#if defined _LIBC && defined USE_IN_LIBIO
526
if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"),
527
argv[0], argv[d->optind]) >= 0)
529
_IO_flockfile (stderr);
531
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
532
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
534
__fxprintf (NULL, "%s", buf);
536
((_IO_FILE *) stderr)->_flags2 = old_flags2;
537
_IO_funlockfile (stderr);
542
fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
543
argv[0], argv[d->optind]);
546
d->__nextchar += strlen (d->__nextchar);
554
option_index = indfound;
558
/* Don't test has_arg with >, because some C compilers don't
559
allow it to be used on enums. */
561
d->optarg = nameend + 1;
566
#if defined _LIBC && defined USE_IN_LIBIO
571
if (argv[d->optind - 1][1] == '-')
574
#if defined _LIBC && defined USE_IN_LIBIO
575
n = __asprintf (&buf, _("\
576
%s: option `--%s' doesn't allow an argument\n"),
577
argv[0], pfound->name);
579
fprintf (stderr, _("\
580
%s: option `--%s' doesn't allow an argument\n"),
581
argv[0], pfound->name);
586
/* +option or -option */
587
#if defined _LIBC && defined USE_IN_LIBIO
588
n = __asprintf (&buf, _("\
589
%s: option `%c%s' doesn't allow an argument\n"),
590
argv[0], argv[d->optind - 1][0],
593
fprintf (stderr, _("\
594
%s: option `%c%s' doesn't allow an argument\n"),
595
argv[0], argv[d->optind - 1][0],
600
#if defined _LIBC && defined USE_IN_LIBIO
603
_IO_flockfile (stderr);
605
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
606
((_IO_FILE *) stderr)->_flags2
607
|= _IO_FLAGS2_NOTCANCEL;
609
__fxprintf (NULL, "%s", buf);
611
((_IO_FILE *) stderr)->_flags2 = old_flags2;
612
_IO_funlockfile (stderr);
619
d->__nextchar += strlen (d->__nextchar);
621
d->optopt = pfound->val;
625
else if (pfound->has_arg == 1)
627
if (d->optind < argc)
628
d->optarg = argv[d->optind++];
633
#if defined _LIBC && defined USE_IN_LIBIO
636
if (__asprintf (&buf, _("\
637
%s: option `%s' requires an argument\n"),
638
argv[0], argv[d->optind - 1]) >= 0)
640
_IO_flockfile (stderr);
642
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
643
((_IO_FILE *) stderr)->_flags2
644
|= _IO_FLAGS2_NOTCANCEL;
646
__fxprintf (NULL, "%s", buf);
648
((_IO_FILE *) stderr)->_flags2 = old_flags2;
649
_IO_funlockfile (stderr);
655
_("%s: option `%s' requires an argument\n"),
656
argv[0], argv[d->optind - 1]);
659
d->__nextchar += strlen (d->__nextchar);
660
d->optopt = pfound->val;
661
return optstring[0] == ':' ? ':' : '?';
664
d->__nextchar += strlen (d->__nextchar);
666
*longind = option_index;
669
*(pfound->flag) = pfound->val;
675
/* Can't find it as a long option. If this is not getopt_long_only,
676
or the option starts with '--' or is not a valid short
677
option, then it's an error.
678
Otherwise interpret it as a short option. */
679
if (!long_only || argv[d->optind][1] == '-'
680
|| strchr (optstring, *d->__nextchar) == NULL)
684
#if defined _LIBC && defined USE_IN_LIBIO
689
if (argv[d->optind][1] == '-')
692
#if defined _LIBC && defined USE_IN_LIBIO
693
n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"),
694
argv[0], d->__nextchar);
696
fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
697
argv[0], d->__nextchar);
702
/* +option or -option */
703
#if defined _LIBC && defined USE_IN_LIBIO
704
n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"),
705
argv[0], argv[d->optind][0], d->__nextchar);
707
fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
708
argv[0], argv[d->optind][0], d->__nextchar);
712
#if defined _LIBC && defined USE_IN_LIBIO
715
_IO_flockfile (stderr);
717
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
718
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
720
__fxprintf (NULL, "%s", buf);
722
((_IO_FILE *) stderr)->_flags2 = old_flags2;
723
_IO_funlockfile (stderr);
729
d->__nextchar = (char *) "";
736
/* Look at and handle the next short option-character. */
739
char c = *d->__nextchar++;
740
char *temp = strchr (optstring, c);
742
/* Increment `optind' when we start to process its last character. */
743
if (*d->__nextchar == '\0')
746
if (temp == NULL || c == ':')
750
#if defined _LIBC && defined USE_IN_LIBIO
755
if (d->__posixly_correct)
757
/* 1003.2 specifies the format of this message. */
758
#if defined _LIBC && defined USE_IN_LIBIO
759
n = __asprintf (&buf, _("%s: illegal option -- %c\n"),
762
fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
767
#if defined _LIBC && defined USE_IN_LIBIO
768
n = __asprintf (&buf, _("%s: invalid option -- %c\n"),
771
fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c);
775
#if defined _LIBC && defined USE_IN_LIBIO
778
_IO_flockfile (stderr);
780
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
781
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
783
__fxprintf (NULL, "%s", buf);
785
((_IO_FILE *) stderr)->_flags2 = old_flags2;
786
_IO_funlockfile (stderr);
795
/* Convenience. Treat POSIX -W foo same as long option --foo */
796
if (temp[0] == 'W' && temp[1] == ';')
799
const struct option *p;
800
const struct option *pfound = NULL;
806
/* This is an option that requires an argument. */
807
if (*d->__nextchar != '\0')
809
d->optarg = d->__nextchar;
810
/* If we end this ARGV-element by taking the rest as an arg,
811
we must advance to the next element now. */
814
else if (d->optind == argc)
818
/* 1003.2 specifies the format of this message. */
819
#if defined _LIBC && defined USE_IN_LIBIO
822
if (__asprintf (&buf,
823
_("%s: option requires an argument -- %c\n"),
826
_IO_flockfile (stderr);
828
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
829
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
831
__fxprintf (NULL, "%s", buf);
833
((_IO_FILE *) stderr)->_flags2 = old_flags2;
834
_IO_funlockfile (stderr);
839
fprintf (stderr, _("%s: option requires an argument -- %c\n"),
844
if (optstring[0] == ':')
851
/* We already incremented `d->optind' once;
852
increment it again when taking next ARGV-elt as argument. */
853
d->optarg = argv[d->optind++];
855
/* optarg is now the argument, see if it's in the
856
table of longopts. */
858
for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
862
/* Test all long options for either exact match
863
or abbreviated matches. */
864
for (p = longopts, option_index = 0; p->name; p++, option_index++)
865
if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
867
if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
869
/* Exact match found. */
871
indfound = option_index;
875
else if (pfound == NULL)
877
/* First nonexact match found. */
879
indfound = option_index;
882
/* Second or later nonexact match found. */
889
#if defined _LIBC && defined USE_IN_LIBIO
892
if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"),
893
argv[0], argv[d->optind]) >= 0)
895
_IO_flockfile (stderr);
897
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
898
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
900
__fxprintf (NULL, "%s", buf);
902
((_IO_FILE *) stderr)->_flags2 = old_flags2;
903
_IO_funlockfile (stderr);
908
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
909
argv[0], argv[d->optind]);
912
d->__nextchar += strlen (d->__nextchar);
918
option_index = indfound;
921
/* Don't test has_arg with >, because some C compilers don't
922
allow it to be used on enums. */
924
d->optarg = nameend + 1;
929
#if defined _LIBC && defined USE_IN_LIBIO
932
if (__asprintf (&buf, _("\
933
%s: option `-W %s' doesn't allow an argument\n"),
934
argv[0], pfound->name) >= 0)
936
_IO_flockfile (stderr);
938
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
939
((_IO_FILE *) stderr)->_flags2
940
|= _IO_FLAGS2_NOTCANCEL;
942
__fxprintf (NULL, "%s", buf);
944
((_IO_FILE *) stderr)->_flags2 = old_flags2;
945
_IO_funlockfile (stderr);
950
fprintf (stderr, _("\
951
%s: option `-W %s' doesn't allow an argument\n"),
952
argv[0], pfound->name);
956
d->__nextchar += strlen (d->__nextchar);
960
else if (pfound->has_arg == 1)
962
if (d->optind < argc)
963
d->optarg = argv[d->optind++];
968
#if defined _LIBC && defined USE_IN_LIBIO
971
if (__asprintf (&buf, _("\
972
%s: option `%s' requires an argument\n"),
973
argv[0], argv[d->optind - 1]) >= 0)
975
_IO_flockfile (stderr);
977
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
978
((_IO_FILE *) stderr)->_flags2
979
|= _IO_FLAGS2_NOTCANCEL;
981
__fxprintf (NULL, "%s", buf);
983
((_IO_FILE *) stderr)->_flags2 = old_flags2;
984
_IO_funlockfile (stderr);
990
_("%s: option `%s' requires an argument\n"),
991
argv[0], argv[d->optind - 1]);
994
d->__nextchar += strlen (d->__nextchar);
995
return optstring[0] == ':' ? ':' : '?';
998
d->__nextchar += strlen (d->__nextchar);
1000
*longind = option_index;
1003
*(pfound->flag) = pfound->val;
1008
d->__nextchar = NULL;
1009
return 'W'; /* Let the application handle it. */
1015
/* This is an option that accepts an argument optionally. */
1016
if (*d->__nextchar != '\0')
1018
d->optarg = d->__nextchar;
1023
d->__nextchar = NULL;
1027
/* This is an option that requires an argument. */
1028
if (*d->__nextchar != '\0')
1030
d->optarg = d->__nextchar;
1031
/* If we end this ARGV-element by taking the rest as an arg,
1032
we must advance to the next element now. */
1035
else if (d->optind == argc)
1039
/* 1003.2 specifies the format of this message. */
1040
#if defined _LIBC && defined USE_IN_LIBIO
1043
if (__asprintf (&buf, _("\
1044
%s: option requires an argument -- %c\n"),
1047
_IO_flockfile (stderr);
1049
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1050
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
1052
__fxprintf (NULL, "%s", buf);
1054
((_IO_FILE *) stderr)->_flags2 = old_flags2;
1055
_IO_funlockfile (stderr);
1061
_("%s: option requires an argument -- %c\n"),
1066
if (optstring[0] == ':')
1072
/* We already incremented `optind' once;
1073
increment it again when taking next ARGV-elt as argument. */
1074
d->optarg = argv[d->optind++];
1075
d->__nextchar = NULL;
1083
_getopt_internal (int argc, char **argv, const char *optstring,
1084
const struct option *longopts, int *longind,
1085
int long_only, int posixly_correct)
1089
getopt_data.optind = optind;
1090
getopt_data.opterr = opterr;
1092
result = _getopt_internal_r (argc, argv, optstring, longopts, longind,
1093
long_only, posixly_correct, &getopt_data);
1095
optind = getopt_data.optind;
1096
optarg = getopt_data.optarg;
1097
optopt = getopt_data.optopt;
1102
/* glibc gets a LSB-compliant getopt.
1103
Standalone applications get a POSIX-compliant getopt. */
1105
enum { POSIXLY_CORRECT = 0 };
1107
enum { POSIXLY_CORRECT = 1 };
1111
getopt (int argc, char *const *argv, const char *optstring)
1113
return _getopt_internal (argc, (char **) argv, optstring, NULL, NULL, 0,
1120
/* Compile with -DTEST to make an executable for use in testing
1121
the above definition of `getopt'. */
1124
main (int argc, char **argv)
1127
int digit_optind = 0;
1131
int this_option_optind = optind ? optind : 1;
1133
c = getopt (argc, argv, "abc:d:0123456789");
1149
if (digit_optind != 0 && digit_optind != this_option_optind)
1150
printf ("digits occur in two different argv-elements.\n");
1151
digit_optind = this_option_optind;
1152
printf ("option %c\n", c);
1156
printf ("option a\n");
1160
printf ("option b\n");
1164
printf ("option c with value `%s'\n", optarg);
1171
printf ("?? getopt returned character code 0%o ??\n", c);
1177
printf ("non-option ARGV-elements: ");
1178
while (optind < argc)
1179
printf ("%s ", argv[optind++]);
added
removed
gnulib/getopt.c
