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
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 2, or (at your option)
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 along
20
with this program; if not, write to the Free Software Foundation,
21
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
42
# define _(msgid) gettext (msgid)
45
#if defined _LIBC && defined USE_IN_LIBIO
49
#ifndef attribute_hidden
50
# define attribute_hidden
53
/* Unlike standard Unix `getopt', functions like `getopt_long'
54
let the user intersperse the options with the other arguments.
56
As `getopt_long' works, it permutes the elements of ARGV so that,
57
when it is done, all the options precede everything else. Thus
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all application programs are extended to handle flexible argument order.
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Using `getopt' or setting the environment variable POSIXLY_CORRECT
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Then the application's behavior is completely standard.
64
GNU application programs can use a third alternative mode in which
65
they can distinguish the relative order of options and other arguments. */
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#include "getopt_int.h"
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/* For communication from `getopt' to the caller.
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When `getopt' finds an option that takes an argument,
71
the argument value is returned here.
72
Also, when `ordering' is RETURN_IN_ORDER,
73
each non-option ARGV-element is returned here. */
77
/* Index in ARGV of the next element to be scanned.
78
This is used for communication to and from the caller
79
and for communication between successive calls to `getopt'.
81
On entry to `getopt', zero means this is the first call; initialize.
83
When `getopt' returns -1, this is the index of the first of the
84
non-option elements that the caller should itself scan.
86
Otherwise, `optind' communicates from one call to the next
87
how much of ARGV has been scanned so far. */
89
/* 1003.2 says this must be 1 before any call. */
92
/* Callers store zero here to inhibit the error message
93
for unrecognized options. */
97
/* Set to an option character which was unrecognized.
98
This must be initialized on some systems to avoid linking in the
99
system's own getopt implementation. */
103
/* Keep a global copy of all internal members of getopt_data. */
105
static struct _getopt_data getopt_data;
108
#if defined HAVE_DECL_GETENV && !HAVE_DECL_GETENV
109
extern char *getenv ();
113
/* Stored original parameters.
114
XXX This is no good solution. We should rather copy the args so
115
that we can compare them later. But we must not use malloc(3). */
116
extern int __libc_argc;
117
extern char **__libc_argv;
119
/* Bash 2.0 gives us an environment variable containing flags
120
indicating ARGV elements that should not be considered arguments. */
122
# ifdef USE_NONOPTION_FLAGS
123
/* Defined in getopt_init.c */
124
extern char *__getopt_nonoption_flags;
127
# ifdef USE_NONOPTION_FLAGS
128
# define SWAP_FLAGS(ch1, ch2) \
129
if (d->__nonoption_flags_len > 0) \
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char __tmp = __getopt_nonoption_flags[ch1]; \
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__getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
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__getopt_nonoption_flags[ch2] = __tmp; \
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# define SWAP_FLAGS(ch1, ch2)
139
# define SWAP_FLAGS(ch1, ch2)
142
/* Exchange two adjacent subsequences of ARGV.
143
One subsequence is elements [first_nonopt,last_nonopt)
144
which contains all the non-options that have been skipped so far.
145
The other is elements [last_nonopt,optind), which contains all
146
the options processed since those non-options were skipped.
148
`first_nonopt' and `last_nonopt' are relocated so that they describe
149
the new indices of the non-options in ARGV after they are moved. */
152
exchange (char **argv, struct _getopt_data *d)
154
int bottom = d->__first_nonopt;
155
int middle = d->__last_nonopt;
159
/* Exchange the shorter segment with the far end of the longer segment.
160
That puts the shorter segment into the right place.
161
It leaves the longer segment in the right place overall,
162
but it consists of two parts that need to be swapped next. */
164
#if defined _LIBC && defined USE_NONOPTION_FLAGS
165
/* First make sure the handling of the `__getopt_nonoption_flags'
166
string can work normally. Our top argument must be in the range
168
if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
170
/* We must extend the array. The user plays games with us and
171
presents new arguments. */
172
char *new_str = malloc (top + 1);
174
d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
177
memset (__mempcpy (new_str, __getopt_nonoption_flags,
178
d->__nonoption_flags_max_len),
179
'\0', top + 1 - d->__nonoption_flags_max_len);
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d->__nonoption_flags_max_len = top + 1;
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__getopt_nonoption_flags = new_str;
186
while (top > middle && middle > bottom)
188
if (top - middle > middle - bottom)
190
/* Bottom segment is the short one. */
191
int len = middle - bottom;
194
/* Swap it with the top part of the top segment. */
195
for (i = 0; i < len; i++)
197
tem = argv[bottom + i];
198
argv[bottom + i] = argv[top - (middle - bottom) + i];
199
argv[top - (middle - bottom) + i] = tem;
200
SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
202
/* Exclude the moved bottom segment from further swapping. */
207
/* Top segment is the short one. */
208
int len = top - middle;
211
/* Swap it with the bottom part of the bottom segment. */
212
for (i = 0; i < len; i++)
214
tem = argv[bottom + i];
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argv[bottom + i] = argv[middle + i];
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argv[middle + i] = tem;
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SWAP_FLAGS (bottom + i, middle + i);
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/* Exclude the moved top segment from further swapping. */
224
/* Update records for the slots the non-options now occupy. */
226
d->__first_nonopt += (d->optind - d->__last_nonopt);
227
d->__last_nonopt = d->optind;
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/* Initialize the internal data when the first call is made. */
233
_getopt_initialize (int argc, char **argv, const char *optstring,
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int posixly_correct, struct _getopt_data *d)
236
/* Start processing options with ARGV-element 1 (since ARGV-element 0
237
is the program name); the sequence of previously skipped
238
non-option ARGV-elements is empty. */
240
d->__first_nonopt = d->__last_nonopt = d->optind;
242
d->__nextchar = NULL;
244
d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT");
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/* Determine how to handle the ordering of options and nonoptions. */
248
if (optstring[0] == '-')
250
d->__ordering = RETURN_IN_ORDER;
253
else if (optstring[0] == '+')
255
d->__ordering = REQUIRE_ORDER;
258
else if (d->__posixly_correct)
259
d->__ordering = REQUIRE_ORDER;
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d->__ordering = PERMUTE;
263
#if defined _LIBC && defined USE_NONOPTION_FLAGS
264
if (!d->__posixly_correct
265
&& argc == __libc_argc && argv == __libc_argv)
267
if (d->__nonoption_flags_max_len == 0)
269
if (__getopt_nonoption_flags == NULL
270
|| __getopt_nonoption_flags[0] == '\0')
271
d->__nonoption_flags_max_len = -1;
274
const char *orig_str = __getopt_nonoption_flags;
275
int len = d->__nonoption_flags_max_len = strlen (orig_str);
276
if (d->__nonoption_flags_max_len < argc)
277
d->__nonoption_flags_max_len = argc;
278
__getopt_nonoption_flags =
279
(char *) malloc (d->__nonoption_flags_max_len);
280
if (__getopt_nonoption_flags == NULL)
281
d->__nonoption_flags_max_len = -1;
283
memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
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'\0', d->__nonoption_flags_max_len - len);
287
d->__nonoption_flags_len = d->__nonoption_flags_max_len;
290
d->__nonoption_flags_len = 0;
296
/* Scan elements of ARGV (whose length is ARGC) for option characters
299
If an element of ARGV starts with '-', and is not exactly "-" or "--",
300
then it is an option element. The characters of this element
301
(aside from the initial '-') are option characters. If `getopt'
302
is called repeatedly, it returns successively each of the option characters
303
from each of the option elements.
305
If `getopt' finds another option character, it returns that character,
306
updating `optind' and `nextchar' so that the next call to `getopt' can
307
resume the scan with the following option character or ARGV-element.
309
If there are no more option characters, `getopt' returns -1.
310
Then `optind' is the index in ARGV of the first ARGV-element
311
that is not an option. (The ARGV-elements have been permuted
312
so that those that are not options now come last.)
314
OPTSTRING is a string containing the legitimate option characters.
315
If an option character is seen that is not listed in OPTSTRING,
316
return '?' after printing an error message. If you set `opterr' to
317
zero, the error message is suppressed but we still return '?'.
319
If a char in OPTSTRING is followed by a colon, that means it wants an arg,
320
so the following text in the same ARGV-element, or the text of the following
321
ARGV-element, is returned in `optarg'. Two colons mean an option that
322
wants an optional arg; if there is text in the current ARGV-element,
323
it is returned in `optarg', otherwise `optarg' is set to zero.
325
If OPTSTRING starts with `-' or `+', it requests different methods of
326
handling the non-option ARGV-elements.
327
See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
329
Long-named options begin with `--' instead of `-'.
330
Their names may be abbreviated as long as the abbreviation is unique
331
or is an exact match for some defined option. If they have an
332
argument, it follows the option name in the same ARGV-element, separated
333
from the option name by a `=', or else the in next ARGV-element.
334
When `getopt' finds a long-named option, it returns 0 if that option's
335
`flag' field is nonzero, the value of the option's `val' field
336
if the `flag' field is zero.
338
LONGOPTS is a vector of `struct option' terminated by an
339
element containing a name which is zero.
341
LONGIND returns the index in LONGOPT of the long-named option found.
342
It is only valid when a long-named option has been found by the most
345
If LONG_ONLY is nonzero, '-' as well as '--' can introduce
348
If POSIXLY_CORRECT is nonzero, behave as if the POSIXLY_CORRECT
349
environment variable were set. */
352
_getopt_internal_r (int argc, char **argv, const char *optstring,
353
const struct option *longopts, int *longind,
354
int long_only, int posixly_correct, struct _getopt_data *d)
356
int print_errors = d->opterr;
357
if (optstring[0] == ':')
365
if (d->optind == 0 || !d->__initialized)
368
d->optind = 1; /* Don't scan ARGV[0], the program name. */
369
optstring = _getopt_initialize (argc, argv, optstring,
371
d->__initialized = 1;
374
/* Test whether ARGV[optind] points to a non-option argument.
375
Either it does not have option syntax, or there is an environment flag
376
from the shell indicating it is not an option. The later information
377
is only used when the used in the GNU libc. */
378
#if defined _LIBC && defined USE_NONOPTION_FLAGS
379
# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
380
|| (d->optind < d->__nonoption_flags_len \
381
&& __getopt_nonoption_flags[d->optind] == '1'))
383
# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
386
if (d->__nextchar == NULL || *d->__nextchar == '\0')
388
/* Advance to the next ARGV-element. */
390
/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
391
moved back by the user (who may also have changed the arguments). */
392
if (d->__last_nonopt > d->optind)
393
d->__last_nonopt = d->optind;
394
if (d->__first_nonopt > d->optind)
395
d->__first_nonopt = d->optind;
397
if (d->__ordering == PERMUTE)
399
/* If we have just processed some options following some non-options,
400
exchange them so that the options come first. */
402
if (d->__first_nonopt != d->__last_nonopt
403
&& d->__last_nonopt != d->optind)
404
exchange ((char **) argv, d);
405
else if (d->__last_nonopt != d->optind)
406
d->__first_nonopt = d->optind;
408
/* Skip any additional non-options
409
and extend the range of non-options previously skipped. */
411
while (d->optind < argc && NONOPTION_P)
413
d->__last_nonopt = d->optind;
416
/* The special ARGV-element `--' means premature end of options.
417
Skip it like a null option,
418
then exchange with previous non-options as if it were an option,
419
then skip everything else like a non-option. */
421
if (d->optind != argc && !strcmp (argv[d->optind], "--"))
425
if (d->__first_nonopt != d->__last_nonopt
426
&& d->__last_nonopt != d->optind)
427
exchange ((char **) argv, d);
428
else if (d->__first_nonopt == d->__last_nonopt)
429
d->__first_nonopt = d->optind;
430
d->__last_nonopt = argc;
435
/* If we have done all the ARGV-elements, stop the scan
436
and back over any non-options that we skipped and permuted. */
438
if (d->optind == argc)
440
/* Set the next-arg-index to point at the non-options
441
that we previously skipped, so the caller will digest them. */
442
if (d->__first_nonopt != d->__last_nonopt)
443
d->optind = d->__first_nonopt;
447
/* If we have come to a non-option and did not permute it,
448
either stop the scan or describe it to the caller and pass it by. */
452
if (d->__ordering == REQUIRE_ORDER)
454
d->optarg = argv[d->optind++];
458
/* We have found another option-ARGV-element.
459
Skip the initial punctuation. */
461
d->__nextchar = (argv[d->optind] + 1
462
+ (longopts != NULL && argv[d->optind][1] == '-'));
465
/* Decode the current option-ARGV-element. */
467
/* Check whether the ARGV-element is a long option.
469
If long_only and the ARGV-element has the form "-f", where f is
470
a valid short option, don't consider it an abbreviated form of
471
a long option that starts with f. Otherwise there would be no
472
way to give the -f short option.
474
On the other hand, if there's a long option "fubar" and
475
the ARGV-element is "-fu", do consider that an abbreviation of
476
the long option, just like "--fu", and not "-f" with arg "u".
478
This distinction seems to be the most useful approach. */
481
&& (argv[d->optind][1] == '-'
482
|| (long_only && (argv[d->optind][2]
483
|| !strchr (optstring, argv[d->optind][1])))))
486
const struct option *p;
487
const struct option *pfound = NULL;
493
for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
496
/* Test all long options for either exact match
497
or abbreviated matches. */
498
for (p = longopts, option_index = 0; p->name; p++, option_index++)
499
if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
501
if ((unsigned int) (nameend - d->__nextchar)
502
== (unsigned int) strlen (p->name))
504
/* Exact match found. */
506
indfound = option_index;
510
else if (pfound == NULL)
512
/* First nonexact match found. */
514
indfound = option_index;
517
|| pfound->has_arg != p->has_arg
518
|| pfound->flag != p->flag
519
|| pfound->val != p->val)
520
/* Second or later nonexact match found. */
528
#if defined _LIBC && defined USE_IN_LIBIO
531
if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"),
532
argv[0], argv[d->optind]) >= 0)
534
_IO_flockfile (stderr);
536
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
537
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
539
__fxprintf (NULL, "%s", buf);
541
((_IO_FILE *) stderr)->_flags2 = old_flags2;
542
_IO_funlockfile (stderr);
547
fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
548
argv[0], argv[d->optind]);
551
d->__nextchar += strlen (d->__nextchar);
559
option_index = indfound;
563
/* Don't test has_arg with >, because some C compilers don't
564
allow it to be used on enums. */
566
d->optarg = nameend + 1;
571
#if defined _LIBC && defined USE_IN_LIBIO
576
if (argv[d->optind - 1][1] == '-')
579
#if defined _LIBC && defined USE_IN_LIBIO
580
n = __asprintf (&buf, _("\
581
%s: option `--%s' doesn't allow an argument\n"),
582
argv[0], pfound->name);
584
fprintf (stderr, _("\
585
%s: option `--%s' doesn't allow an argument\n"),
586
argv[0], pfound->name);
591
/* +option or -option */
592
#if defined _LIBC && defined USE_IN_LIBIO
593
n = __asprintf (&buf, _("\
594
%s: option `%c%s' doesn't allow an argument\n"),
595
argv[0], argv[d->optind - 1][0],
598
fprintf (stderr, _("\
599
%s: option `%c%s' doesn't allow an argument\n"),
600
argv[0], argv[d->optind - 1][0],
605
#if defined _LIBC && defined USE_IN_LIBIO
608
_IO_flockfile (stderr);
610
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
611
((_IO_FILE *) stderr)->_flags2
612
|= _IO_FLAGS2_NOTCANCEL;
614
__fxprintf (NULL, "%s", buf);
616
((_IO_FILE *) stderr)->_flags2 = old_flags2;
617
_IO_funlockfile (stderr);
624
d->__nextchar += strlen (d->__nextchar);
626
d->optopt = pfound->val;
630
else if (pfound->has_arg == 1)
632
if (d->optind < argc)
633
d->optarg = argv[d->optind++];
638
#if defined _LIBC && defined USE_IN_LIBIO
641
if (__asprintf (&buf, _("\
642
%s: option `%s' requires an argument\n"),
643
argv[0], argv[d->optind - 1]) >= 0)
645
_IO_flockfile (stderr);
647
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
648
((_IO_FILE *) stderr)->_flags2
649
|= _IO_FLAGS2_NOTCANCEL;
651
__fxprintf (NULL, "%s", buf);
653
((_IO_FILE *) stderr)->_flags2 = old_flags2;
654
_IO_funlockfile (stderr);
660
_("%s: option `%s' requires an argument\n"),
661
argv[0], argv[d->optind - 1]);
664
d->__nextchar += strlen (d->__nextchar);
665
d->optopt = pfound->val;
666
return optstring[0] == ':' ? ':' : '?';
669
d->__nextchar += strlen (d->__nextchar);
671
*longind = option_index;
674
*(pfound->flag) = pfound->val;
680
/* Can't find it as a long option. If this is not getopt_long_only,
681
or the option starts with '--' or is not a valid short
682
option, then it's an error.
683
Otherwise interpret it as a short option. */
684
if (!long_only || argv[d->optind][1] == '-'
685
|| strchr (optstring, *d->__nextchar) == NULL)
689
#if defined _LIBC && defined USE_IN_LIBIO
694
if (argv[d->optind][1] == '-')
697
#if defined _LIBC && defined USE_IN_LIBIO
698
n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"),
699
argv[0], d->__nextchar);
701
fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
702
argv[0], d->__nextchar);
707
/* +option or -option */
708
#if defined _LIBC && defined USE_IN_LIBIO
709
n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"),
710
argv[0], argv[d->optind][0], d->__nextchar);
712
fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
713
argv[0], argv[d->optind][0], d->__nextchar);
717
#if defined _LIBC && defined USE_IN_LIBIO
720
_IO_flockfile (stderr);
722
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
723
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
725
__fxprintf (NULL, "%s", buf);
727
((_IO_FILE *) stderr)->_flags2 = old_flags2;
728
_IO_funlockfile (stderr);
734
d->__nextchar = (char *) "";
741
/* Look at and handle the next short option-character. */
744
char c = *d->__nextchar++;
745
char *temp = strchr (optstring, c);
747
/* Increment `optind' when we start to process its last character. */
748
if (*d->__nextchar == '\0')
751
if (temp == NULL || c == ':')
755
#if defined _LIBC && defined USE_IN_LIBIO
760
if (d->__posixly_correct)
762
/* 1003.2 specifies the format of this message. */
763
#if defined _LIBC && defined USE_IN_LIBIO
764
n = __asprintf (&buf, _("%s: illegal option -- %c\n"),
767
fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
772
#if defined _LIBC && defined USE_IN_LIBIO
773
n = __asprintf (&buf, _("%s: invalid option -- %c\n"),
776
fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c);
780
#if defined _LIBC && defined USE_IN_LIBIO
783
_IO_flockfile (stderr);
785
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
786
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
788
__fxprintf (NULL, "%s", buf);
790
((_IO_FILE *) stderr)->_flags2 = old_flags2;
791
_IO_funlockfile (stderr);
800
/* Convenience. Treat POSIX -W foo same as long option --foo */
801
if (temp[0] == 'W' && temp[1] == ';')
804
const struct option *p;
805
const struct option *pfound = NULL;
811
/* This is an option that requires an argument. */
812
if (*d->__nextchar != '\0')
814
d->optarg = d->__nextchar;
815
/* If we end this ARGV-element by taking the rest as an arg,
816
we must advance to the next element now. */
819
else if (d->optind == argc)
823
/* 1003.2 specifies the format of this message. */
824
#if defined _LIBC && defined USE_IN_LIBIO
827
if (__asprintf (&buf,
828
_("%s: option requires an argument -- %c\n"),
831
_IO_flockfile (stderr);
833
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
834
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
836
__fxprintf (NULL, "%s", buf);
838
((_IO_FILE *) stderr)->_flags2 = old_flags2;
839
_IO_funlockfile (stderr);
844
fprintf (stderr, _("%s: option requires an argument -- %c\n"),
849
if (optstring[0] == ':')
856
/* We already incremented `d->optind' once;
857
increment it again when taking next ARGV-elt as argument. */
858
d->optarg = argv[d->optind++];
860
/* optarg is now the argument, see if it's in the
861
table of longopts. */
863
for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
867
/* Test all long options for either exact match
868
or abbreviated matches. */
869
for (p = longopts, option_index = 0; p->name; p++, option_index++)
870
if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
872
if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
874
/* Exact match found. */
876
indfound = option_index;
880
else if (pfound == NULL)
882
/* First nonexact match found. */
884
indfound = option_index;
887
/* Second or later nonexact match found. */
894
#if defined _LIBC && defined USE_IN_LIBIO
897
if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"),
898
argv[0], argv[d->optind]) >= 0)
900
_IO_flockfile (stderr);
902
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
903
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
905
__fxprintf (NULL, "%s", buf);
907
((_IO_FILE *) stderr)->_flags2 = old_flags2;
908
_IO_funlockfile (stderr);
913
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
914
argv[0], argv[d->optind]);
917
d->__nextchar += strlen (d->__nextchar);
923
option_index = indfound;
926
/* Don't test has_arg with >, because some C compilers don't
927
allow it to be used on enums. */
929
d->optarg = nameend + 1;
934
#if defined _LIBC && defined USE_IN_LIBIO
937
if (__asprintf (&buf, _("\
938
%s: option `-W %s' doesn't allow an argument\n"),
939
argv[0], pfound->name) >= 0)
941
_IO_flockfile (stderr);
943
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
944
((_IO_FILE *) stderr)->_flags2
945
|= _IO_FLAGS2_NOTCANCEL;
947
__fxprintf (NULL, "%s", buf);
949
((_IO_FILE *) stderr)->_flags2 = old_flags2;
950
_IO_funlockfile (stderr);
955
fprintf (stderr, _("\
956
%s: option `-W %s' doesn't allow an argument\n"),
957
argv[0], pfound->name);
961
d->__nextchar += strlen (d->__nextchar);
965
else if (pfound->has_arg == 1)
967
if (d->optind < argc)
968
d->optarg = argv[d->optind++];
973
#if defined _LIBC && defined USE_IN_LIBIO
976
if (__asprintf (&buf, _("\
977
%s: option `%s' requires an argument\n"),
978
argv[0], argv[d->optind - 1]) >= 0)
980
_IO_flockfile (stderr);
982
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
983
((_IO_FILE *) stderr)->_flags2
984
|= _IO_FLAGS2_NOTCANCEL;
986
__fxprintf (NULL, "%s", buf);
988
((_IO_FILE *) stderr)->_flags2 = old_flags2;
989
_IO_funlockfile (stderr);
995
_("%s: option `%s' requires an argument\n"),
996
argv[0], argv[d->optind - 1]);
999
d->__nextchar += strlen (d->__nextchar);
1000
return optstring[0] == ':' ? ':' : '?';
1003
d->__nextchar += strlen (d->__nextchar);
1004
if (longind != NULL)
1005
*longind = option_index;
1008
*(pfound->flag) = pfound->val;
1013
d->__nextchar = NULL;
1014
return 'W'; /* Let the application handle it. */
1020
/* This is an option that accepts an argument optionally. */
1021
if (*d->__nextchar != '\0')
1023
d->optarg = d->__nextchar;
1028
d->__nextchar = NULL;
1032
/* This is an option that requires an argument. */
1033
if (*d->__nextchar != '\0')
1035
d->optarg = d->__nextchar;
1036
/* If we end this ARGV-element by taking the rest as an arg,
1037
we must advance to the next element now. */
1040
else if (d->optind == argc)
1044
/* 1003.2 specifies the format of this message. */
1045
#if defined _LIBC && defined USE_IN_LIBIO
1048
if (__asprintf (&buf, _("\
1049
%s: option requires an argument -- %c\n"),
1052
_IO_flockfile (stderr);
1054
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1055
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
1057
__fxprintf (NULL, "%s", buf);
1059
((_IO_FILE *) stderr)->_flags2 = old_flags2;
1060
_IO_funlockfile (stderr);
1066
_("%s: option requires an argument -- %c\n"),
1071
if (optstring[0] == ':')
1077
/* We already incremented `optind' once;
1078
increment it again when taking next ARGV-elt as argument. */
1079
d->optarg = argv[d->optind++];
1080
d->__nextchar = NULL;
1088
_getopt_internal (int argc, char **argv, const char *optstring,
1089
const struct option *longopts, int *longind,
1090
int long_only, int posixly_correct)
1094
getopt_data.optind = optind;
1095
getopt_data.opterr = opterr;
1097
result = _getopt_internal_r (argc, argv, optstring, longopts, longind,
1098
long_only, posixly_correct, &getopt_data);
1100
optind = getopt_data.optind;
1101
optarg = getopt_data.optarg;
1102
optopt = getopt_data.optopt;
1107
/* glibc gets a LSB-compliant getopt.
1108
Standalone applications get a POSIX-compliant getopt. */
1110
enum { POSIXLY_CORRECT = 0 };
1112
enum { POSIXLY_CORRECT = 1 };
1116
getopt (int argc, char *const *argv, const char *optstring)
1118
return _getopt_internal (argc, (char **) argv, optstring, NULL, NULL, 0,
1125
/* Compile with -DTEST to make an executable for use in testing
1126
the above definition of `getopt'. */
1129
main (int argc, char **argv)
1132
int digit_optind = 0;
1136
int this_option_optind = optind ? optind : 1;
1138
c = getopt (argc, argv, "abc:d:0123456789");
1154
if (digit_optind != 0 && digit_optind != this_option_optind)
1155
printf ("digits occur in two different argv-elements.\n");
1156
digit_optind = this_option_optind;
1157
printf ("option %c\n", c);
1161
printf ("option a\n");
1165
printf ("option b\n");
1169
printf ("option c with value `%s'\n", optarg);
1176
printf ("?? getopt returned character code 0%o ??\n", c);
1182
printf ("non-option ARGV-elements: ");
1183
while (optind < argc)
1184
printf ("%s ", argv[optind++]);
added
removed
gnulib/lib/getopt.c
