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- Committer: Bazaar Package Importer
- Author(s): Samuel Thibault
- Date: 2010-01-12 23:48:47 UTC
- mto: (1.1.4 upstream) (5.2.1 experimental)
- mto: This revision was merged to the branch mainline in revision 8.
- Revision ID: james.westby@ubuntu.com-20100112234847-ph9xdk3lrjdox6ks
Import upstream version 1.8.0
- files added:
- COPYING.LIB
- build-aux
- gnulib
- gnulib/m4
- m4
- man
- tests/table_test_corpuses
- files removed:
- config.guess
- files modified:
- COPYING
added
removed
gnulib/getopt.c
1
/* Getopt for GNU.
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
4
before changing it!
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.
8
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.
13
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.
18
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/>. */
21
22
#ifndef _LIBC
23
# include <config.h>
24
#endif
25
26
#include "getopt.h"
27
28
#include <stdio.h>
29
#include <stdlib.h>
30
#include <string.h>
31
#include <unistd.h>
32
33
#ifdef _LIBC
34
# include <libintl.h>
35
#else
36
# include "gettext.h"
37
# define _(msgid) gettext (msgid)
38
#endif
39
40
#if defined _LIBC && defined USE_IN_LIBIO
41
# include <wchar.h>
42
#endif
43
44
#ifndef attribute_hidden
45
# define attribute_hidden
46
#endif
47
48
/* Unlike standard Unix `getopt', functions like `getopt_long'
49
let the user intersperse the options with the other arguments.
50
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.
54
55
Using `getopt' or setting the environment variable POSIXLY_CORRECT
56
disables permutation.
57
Then the application's behavior is completely standard.
58
59
GNU application programs can use a third alternative mode in which
60
they can distinguish the relative order of options and other arguments. */
61
62
#include "getopt_int.h"
63
64
/* For communication from `getopt' to the caller.
65
When `getopt' finds an option that takes an argument,
66
the argument value is returned here.
67
Also, when `ordering' is RETURN_IN_ORDER,
68
each non-option ARGV-element is returned here. */
69
70
char *optarg;
71
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'.
75
76
On entry to `getopt', zero means this is the first call; initialize.
77
78
When `getopt' returns -1, this is the index of the first of the
79
non-option elements that the caller should itself scan.
80
81
Otherwise, `optind' communicates from one call to the next
82
how much of ARGV has been scanned so far. */
83
84
/* 1003.2 says this must be 1 before any call. */
85
int optind = 1;
86
87
/* Callers store zero here to inhibit the error message
88
for unrecognized options. */
89
90
int opterr = 1;
91
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. */
95
96
int optopt = '?';
97
98
/* Keep a global copy of all internal members of getopt_data. */
99
100
static struct _getopt_data getopt_data;
101
102
103
#if defined HAVE_DECL_GETENV && !HAVE_DECL_GETENV
104
extern char *getenv ();
105
#endif
106
107
#ifdef _LIBC
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;
113
114
/* Bash 2.0 gives us an environment variable containing flags
115
indicating ARGV elements that should not be considered arguments. */
116
117
# ifdef USE_NONOPTION_FLAGS
118
/* Defined in getopt_init.c */
119
extern char *__getopt_nonoption_flags;
120
# endif
121
122
# ifdef USE_NONOPTION_FLAGS
123
# define SWAP_FLAGS(ch1, ch2) \
124
if (d->__nonoption_flags_len > 0) \
125
{ \
126
char __tmp = __getopt_nonoption_flags[ch1]; \
127
__getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
128
__getopt_nonoption_flags[ch2] = __tmp; \
129
}
130
# else
131
# define SWAP_FLAGS(ch1, ch2)
132
# endif
133
#else /* !_LIBC */
134
# define SWAP_FLAGS(ch1, ch2)
135
#endif /* _LIBC */
136
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.
142
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. */
145
146
static void
147
exchange (char **argv, struct _getopt_data *d)
148
{
149
int bottom = d->__first_nonopt;
150
int middle = d->__last_nonopt;
151
int top = d->optind;
152
char *tem;
153
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. */
158
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
162
of the string. */
163
if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
164
{
165
/* We must extend the array. The user plays games with us and
166
presents new arguments. */
167
char *new_str = malloc (top + 1);
168
if (new_str == NULL)
169
d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
170
else
171
{
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;
177
}
178
}
179
#endif
180
181
while (top > middle && middle > bottom)
182
{
183
if (top - middle > middle - bottom)
184
{
185
/* Bottom segment is the short one. */
186
int len = middle - bottom;
187
register int i;
188
189
/* Swap it with the top part of the top segment. */
190
for (i = 0; i < len; i++)
191
{
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);
196
}
197
/* Exclude the moved bottom segment from further swapping. */
198
top -= len;
199
}
200
else
201
{
202
/* Top segment is the short one. */
203
int len = top - middle;
204
register int i;
205
206
/* Swap it with the bottom part of the bottom segment. */
207
for (i = 0; i < len; i++)
208
{
209
tem = argv[bottom + i];
210
argv[bottom + i] = argv[middle + i];
211
argv[middle + i] = tem;
212
SWAP_FLAGS (bottom + i, middle + i);
213
}
214
/* Exclude the moved top segment from further swapping. */
215
bottom += len;
216
}
217
}
218
219
/* Update records for the slots the non-options now occupy. */
220
221
d->__first_nonopt += (d->optind - d->__last_nonopt);
222
d->__last_nonopt = d->optind;
223
}
224
225
/* Initialize the internal data when the first call is made. */
226
227
static const char *
228
_getopt_initialize (int argc, char **argv, const char *optstring,
229
int posixly_correct, struct _getopt_data *d)
230
{
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. */
234
235
d->__first_nonopt = d->__last_nonopt = d->optind;
236
237
d->__nextchar = NULL;
238
239
d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT");
240
241
/* Determine how to handle the ordering of options and nonoptions. */
242
243
if (optstring[0] == '-')
244
{
245
d->__ordering = RETURN_IN_ORDER;
246
++optstring;
247
}
248
else if (optstring[0] == '+')
249
{
250
d->__ordering = REQUIRE_ORDER;
251
++optstring;
252
}
253
else if (d->__posixly_correct)
254
d->__ordering = REQUIRE_ORDER;
255
else
256
d->__ordering = PERMUTE;
257
258
#if defined _LIBC && defined USE_NONOPTION_FLAGS
259
if (!d->__posixly_correct
260
&& argc == __libc_argc && argv == __libc_argv)
261
{
262
if (d->__nonoption_flags_max_len == 0)
263
{
264
if (__getopt_nonoption_flags == NULL
265
|| __getopt_nonoption_flags[0] == '\0')
266
d->__nonoption_flags_max_len = -1;
267
else
268
{
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;
277
else
278
memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
279
'\0', d->__nonoption_flags_max_len - len);
280
}
281
}
282
d->__nonoption_flags_len = d->__nonoption_flags_max_len;
283
}
284
else
285
d->__nonoption_flags_len = 0;
286
#endif
287
288
return optstring;
289
}
290
291
/* Scan elements of ARGV (whose length is ARGC) for option characters
292
given in OPTSTRING.
293
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.
299
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.
303
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.)
308
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 '?'.
313
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.
319
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.
323
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.
332
333
LONGOPTS is a vector of `struct option' terminated by an
334
element containing a name which is zero.
335
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
338
recent call.
339
340
If LONG_ONLY is nonzero, '-' as well as '--' can introduce
341
long-named options.
342
343
If POSIXLY_CORRECT is nonzero, behave as if the POSIXLY_CORRECT
344
environment variable were set. */
345
346
int
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)
350
{
351
int print_errors = d->opterr;
352
if (optstring[0] == ':')
353
print_errors = 0;
354
355
if (argc < 1)
356
return -1;
357
358
d->optarg = NULL;
359
360
if (d->optind == 0 || !d->__initialized)
361
{
362
if (d->optind == 0)
363
d->optind = 1; /* Don't scan ARGV[0], the program name. */
364
optstring = _getopt_initialize (argc, argv, optstring,
365
posixly_correct, d);
366
d->__initialized = 1;
367
}
368
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'))
377
#else
378
# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
379
#endif
380
381
if (d->__nextchar == NULL || *d->__nextchar == '\0')
382
{
383
/* Advance to the next ARGV-element. */
384
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;
391
392
if (d->__ordering == PERMUTE)
393
{
394
/* If we have just processed some options following some non-options,
395
exchange them so that the options come first. */
396
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;
402
403
/* Skip any additional non-options
404
and extend the range of non-options previously skipped. */
405
406
while (d->optind < argc && NONOPTION_P)
407
d->optind++;
408
d->__last_nonopt = d->optind;
409
}
410
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. */
415
416
if (d->optind != argc && !strcmp (argv[d->optind], "--"))
417
{
418
d->optind++;
419
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;
426
427
d->optind = argc;
428
}
429
430
/* If we have done all the ARGV-elements, stop the scan
431
and back over any non-options that we skipped and permuted. */
432
433
if (d->optind == argc)
434
{
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;
439
return -1;
440
}
441
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. */
444
445
if (NONOPTION_P)
446
{
447
if (d->__ordering == REQUIRE_ORDER)
448
return -1;
449
d->optarg = argv[d->optind++];
450
return 1;
451
}
452
453
/* We have found another option-ARGV-element.
454
Skip the initial punctuation. */
455
456
d->__nextchar = (argv[d->optind] + 1
457
+ (longopts != NULL && argv[d->optind][1] == '-'));
458
}
459
460
/* Decode the current option-ARGV-element. */
461
462
/* Check whether the ARGV-element is a long option.
463
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.
468
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".
472
473
This distinction seems to be the most useful approach. */
474
475
if (longopts != NULL
476
&& (argv[d->optind][1] == '-'
477
|| (long_only && (argv[d->optind][2]
478
|| !strchr (optstring, argv[d->optind][1])))))
479
{
480
char *nameend;
481
const struct option *p;
482
const struct option *pfound = NULL;
483
int exact = 0;
484
int ambig = 0;
485
int indfound = -1;
486
int option_index;
487
488
for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
489
/* Do nothing. */ ;
490
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))
495
{
496
if ((unsigned int) (nameend - d->__nextchar)
497
== (unsigned int) strlen (p->name))
498
{
499
/* Exact match found. */
500
pfound = p;
501
indfound = option_index;
502
exact = 1;
503
break;
504
}
505
else if (pfound == NULL)
506
{
507
/* First nonexact match found. */
508
pfound = p;
509
indfound = option_index;
510
}
511
else if (long_only
512
|| pfound->has_arg != p->has_arg
513
|| pfound->flag != p->flag
514
|| pfound->val != p->val)
515
/* Second or later nonexact match found. */
516
ambig = 1;
517
}
518
519
if (ambig && !exact)
520
{
521
if (print_errors)
522
{
523
#if defined _LIBC && defined USE_IN_LIBIO
524
char *buf;
525
526
if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"),
527
argv[0], argv[d->optind]) >= 0)
528
{
529
_IO_flockfile (stderr);
530
531
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
532
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
533
534
__fxprintf (NULL, "%s", buf);
535
536
((_IO_FILE *) stderr)->_flags2 = old_flags2;
537
_IO_funlockfile (stderr);
538
539
free (buf);
540
}
541
#else
542
fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
543
argv[0], argv[d->optind]);
544
#endif
545
}
546
d->__nextchar += strlen (d->__nextchar);
547
d->optind++;
548
d->optopt = 0;
549
return '?';
550
}
551
552
if (pfound != NULL)
553
{
554
option_index = indfound;
555
d->optind++;
556
if (*nameend)
557
{
558
/* Don't test has_arg with >, because some C compilers don't
559
allow it to be used on enums. */
560
if (pfound->has_arg)
561
d->optarg = nameend + 1;
562
else
563
{
564
if (print_errors)
565
{
566
#if defined _LIBC && defined USE_IN_LIBIO
567
char *buf;
568
int n;
569
#endif
570
571
if (argv[d->optind - 1][1] == '-')
572
{
573
/* --option */
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);
578
#else
579
fprintf (stderr, _("\
580
%s: option `--%s' doesn't allow an argument\n"),
581
argv[0], pfound->name);
582
#endif
583
}
584
else
585
{
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],
591
pfound->name);
592
#else
593
fprintf (stderr, _("\
594
%s: option `%c%s' doesn't allow an argument\n"),
595
argv[0], argv[d->optind - 1][0],
596
pfound->name);
597
#endif
598
}
599
600
#if defined _LIBC && defined USE_IN_LIBIO
601
if (n >= 0)
602
{
603
_IO_flockfile (stderr);
604
605
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
606
((_IO_FILE *) stderr)->_flags2
607
|= _IO_FLAGS2_NOTCANCEL;
608
609
__fxprintf (NULL, "%s", buf);
610
611
((_IO_FILE *) stderr)->_flags2 = old_flags2;
612
_IO_funlockfile (stderr);
613
614
free (buf);
615
}
616
#endif
617
}
618
619
d->__nextchar += strlen (d->__nextchar);
620
621
d->optopt = pfound->val;
622
return '?';
623
}
624
}
625
else if (pfound->has_arg == 1)
626
{
627
if (d->optind < argc)
628
d->optarg = argv[d->optind++];
629
else
630
{
631
if (print_errors)
632
{
633
#if defined _LIBC && defined USE_IN_LIBIO
634
char *buf;
635
636
if (__asprintf (&buf, _("\
637
%s: option `%s' requires an argument\n"),
638
argv[0], argv[d->optind - 1]) >= 0)
639
{
640
_IO_flockfile (stderr);
641
642
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
643
((_IO_FILE *) stderr)->_flags2
644
|= _IO_FLAGS2_NOTCANCEL;
645
646
__fxprintf (NULL, "%s", buf);
647
648
((_IO_FILE *) stderr)->_flags2 = old_flags2;
649
_IO_funlockfile (stderr);
650
651
free (buf);
652
}
653
#else
654
fprintf (stderr,
655
_("%s: option `%s' requires an argument\n"),
656
argv[0], argv[d->optind - 1]);
657
#endif
658
}
659
d->__nextchar += strlen (d->__nextchar);
660
d->optopt = pfound->val;
661
return optstring[0] == ':' ? ':' : '?';
662
}
663
}
664
d->__nextchar += strlen (d->__nextchar);
665
if (longind != NULL)
666
*longind = option_index;
667
if (pfound->flag)
668
{
669
*(pfound->flag) = pfound->val;
670
return 0;
671
}
672
return pfound->val;
673
}
674
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)
681
{
682
if (print_errors)
683
{
684
#if defined _LIBC && defined USE_IN_LIBIO
685
char *buf;
686
int n;
687
#endif
688
689
if (argv[d->optind][1] == '-')
690
{
691
/* --option */
692
#if defined _LIBC && defined USE_IN_LIBIO
693
n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"),
694
argv[0], d->__nextchar);
695
#else
696
fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
697
argv[0], d->__nextchar);
698
#endif
699
}
700
else
701
{
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);
706
#else
707
fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
708
argv[0], argv[d->optind][0], d->__nextchar);
709
#endif
710
}
711
712
#if defined _LIBC && defined USE_IN_LIBIO
713
if (n >= 0)
714
{
715
_IO_flockfile (stderr);
716
717
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
718
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
719
720
__fxprintf (NULL, "%s", buf);
721
722
((_IO_FILE *) stderr)->_flags2 = old_flags2;
723
_IO_funlockfile (stderr);
724
725
free (buf);
726
}
727
#endif
728
}
729
d->__nextchar = (char *) "";
730
d->optind++;
731
d->optopt = 0;
732
return '?';
733
}
734
}
735
736
/* Look at and handle the next short option-character. */
737
738
{
739
char c = *d->__nextchar++;
740
char *temp = strchr (optstring, c);
741
742
/* Increment `optind' when we start to process its last character. */
743
if (*d->__nextchar == '\0')
744
++d->optind;
745
746
if (temp == NULL || c == ':')
747
{
748
if (print_errors)
749
{
750
#if defined _LIBC && defined USE_IN_LIBIO
751
char *buf;
752
int n;
753
#endif
754
755
if (d->__posixly_correct)
756
{
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"),
760
argv[0], c);
761
#else
762
fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
763
#endif
764
}
765
else
766
{
767
#if defined _LIBC && defined USE_IN_LIBIO
768
n = __asprintf (&buf, _("%s: invalid option -- %c\n"),
769
argv[0], c);
770
#else
771
fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c);
772
#endif
773
}
774
775
#if defined _LIBC && defined USE_IN_LIBIO
776
if (n >= 0)
777
{
778
_IO_flockfile (stderr);
779
780
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
781
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
782
783
__fxprintf (NULL, "%s", buf);
784
785
((_IO_FILE *) stderr)->_flags2 = old_flags2;
786
_IO_funlockfile (stderr);
787
788
free (buf);
789
}
790
#endif
791
}
792
d->optopt = c;
793
return '?';
794
}
795
/* Convenience. Treat POSIX -W foo same as long option --foo */
796
if (temp[0] == 'W' && temp[1] == ';')
797
{
798
char *nameend;
799
const struct option *p;
800
const struct option *pfound = NULL;
801
int exact = 0;
802
int ambig = 0;
803
int indfound = 0;
804
int option_index;
805
806
/* This is an option that requires an argument. */
807
if (*d->__nextchar != '\0')
808
{
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. */
812
d->optind++;
813
}
814
else if (d->optind == argc)
815
{
816
if (print_errors)
817
{
818
/* 1003.2 specifies the format of this message. */
819
#if defined _LIBC && defined USE_IN_LIBIO
820
char *buf;
821
822
if (__asprintf (&buf,
823
_("%s: option requires an argument -- %c\n"),
824
argv[0], c) >= 0)
825
{
826
_IO_flockfile (stderr);
827
828
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
829
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
830
831
__fxprintf (NULL, "%s", buf);
832
833
((_IO_FILE *) stderr)->_flags2 = old_flags2;
834
_IO_funlockfile (stderr);
835
836
free (buf);
837
}
838
#else
839
fprintf (stderr, _("%s: option requires an argument -- %c\n"),
840
argv[0], c);
841
#endif
842
}
843
d->optopt = c;
844
if (optstring[0] == ':')
845
c = ':';
846
else
847
c = '?';
848
return c;
849
}
850
else
851
/* We already incremented `d->optind' once;
852
increment it again when taking next ARGV-elt as argument. */
853
d->optarg = argv[d->optind++];
854
855
/* optarg is now the argument, see if it's in the
856
table of longopts. */
857
858
for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
859
nameend++)
860
/* Do nothing. */ ;
861
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))
866
{
867
if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
868
{
869
/* Exact match found. */
870
pfound = p;
871
indfound = option_index;
872
exact = 1;
873
break;
874
}
875
else if (pfound == NULL)
876
{
877
/* First nonexact match found. */
878
pfound = p;
879
indfound = option_index;
880
}
881
else
882
/* Second or later nonexact match found. */
883
ambig = 1;
884
}
885
if (ambig && !exact)
886
{
887
if (print_errors)
888
{
889
#if defined _LIBC && defined USE_IN_LIBIO
890
char *buf;
891
892
if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"),
893
argv[0], argv[d->optind]) >= 0)
894
{
895
_IO_flockfile (stderr);
896
897
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
898
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
899
900
__fxprintf (NULL, "%s", buf);
901
902
((_IO_FILE *) stderr)->_flags2 = old_flags2;
903
_IO_funlockfile (stderr);
904
905
free (buf);
906
}
907
#else
908
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
909
argv[0], argv[d->optind]);
910
#endif
911
}
912
d->__nextchar += strlen (d->__nextchar);
913
d->optind++;
914
return '?';
915
}
916
if (pfound != NULL)
917
{
918
option_index = indfound;
919
if (*nameend)
920
{
921
/* Don't test has_arg with >, because some C compilers don't
922
allow it to be used on enums. */
923
if (pfound->has_arg)
924
d->optarg = nameend + 1;
925
else
926
{
927
if (print_errors)
928
{
929
#if defined _LIBC && defined USE_IN_LIBIO
930
char *buf;
931
932
if (__asprintf (&buf, _("\
933
%s: option `-W %s' doesn't allow an argument\n"),
934
argv[0], pfound->name) >= 0)
935
{
936
_IO_flockfile (stderr);
937
938
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
939
((_IO_FILE *) stderr)->_flags2
940
|= _IO_FLAGS2_NOTCANCEL;
941
942
__fxprintf (NULL, "%s", buf);
943
944
((_IO_FILE *) stderr)->_flags2 = old_flags2;
945
_IO_funlockfile (stderr);
946
947
free (buf);
948
}
949
#else
950
fprintf (stderr, _("\
951
%s: option `-W %s' doesn't allow an argument\n"),
952
argv[0], pfound->name);
953
#endif
954
}
955
956
d->__nextchar += strlen (d->__nextchar);
957
return '?';
958
}
959
}
960
else if (pfound->has_arg == 1)
961
{
962
if (d->optind < argc)
963
d->optarg = argv[d->optind++];
964
else
965
{
966
if (print_errors)
967
{
968
#if defined _LIBC && defined USE_IN_LIBIO
969
char *buf;
970
971
if (__asprintf (&buf, _("\
972
%s: option `%s' requires an argument\n"),
973
argv[0], argv[d->optind - 1]) >= 0)
974
{
975
_IO_flockfile (stderr);
976
977
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
978
((_IO_FILE *) stderr)->_flags2
979
|= _IO_FLAGS2_NOTCANCEL;
980
981
__fxprintf (NULL, "%s", buf);
982
983
((_IO_FILE *) stderr)->_flags2 = old_flags2;
984
_IO_funlockfile (stderr);
985
986
free (buf);
987
}
988
#else
989
fprintf (stderr,
990
_("%s: option `%s' requires an argument\n"),
991
argv[0], argv[d->optind - 1]);
992
#endif
993
}
994
d->__nextchar += strlen (d->__nextchar);
995
return optstring[0] == ':' ? ':' : '?';
996
}
997
}
998
d->__nextchar += strlen (d->__nextchar);
999
if (longind != NULL)
1000
*longind = option_index;
1001
if (pfound->flag)
1002
{
1003
*(pfound->flag) = pfound->val;
1004
return 0;
1005
}
1006
return pfound->val;
1007
}
1008
d->__nextchar = NULL;
1009
return 'W'; /* Let the application handle it. */
1010
}
1011
if (temp[1] == ':')
1012
{
1013
if (temp[2] == ':')
1014
{
1015
/* This is an option that accepts an argument optionally. */
1016
if (*d->__nextchar != '\0')
1017
{
1018
d->optarg = d->__nextchar;
1019
d->optind++;
1020
}
1021
else
1022
d->optarg = NULL;
1023
d->__nextchar = NULL;
1024
}
1025
else
1026
{
1027
/* This is an option that requires an argument. */
1028
if (*d->__nextchar != '\0')
1029
{
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. */
1033
d->optind++;
1034
}
1035
else if (d->optind == argc)
1036
{
1037
if (print_errors)
1038
{
1039
/* 1003.2 specifies the format of this message. */
1040
#if defined _LIBC && defined USE_IN_LIBIO
1041
char *buf;
1042
1043
if (__asprintf (&buf, _("\
1044
%s: option requires an argument -- %c\n"),
1045
argv[0], c) >= 0)
1046
{
1047
_IO_flockfile (stderr);
1048
1049
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1050
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
1051
1052
__fxprintf (NULL, "%s", buf);
1053
1054
((_IO_FILE *) stderr)->_flags2 = old_flags2;
1055
_IO_funlockfile (stderr);
1056
1057
free (buf);
1058
}
1059
#else
1060
fprintf (stderr,
1061
_("%s: option requires an argument -- %c\n"),
1062
argv[0], c);
1063
#endif
1064
}
1065
d->optopt = c;
1066
if (optstring[0] == ':')
1067
c = ':';
1068
else
1069
c = '?';
1070
}
1071
else
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;
1076
}
1077
}
1078
return c;
1079
}
1080
}
1081
1082
int
1083
_getopt_internal (int argc, char **argv, const char *optstring,
1084
const struct option *longopts, int *longind,
1085
int long_only, int posixly_correct)
1086
{
1087
int result;
1088
1089
getopt_data.optind = optind;
1090
getopt_data.opterr = opterr;
1091
1092
result = _getopt_internal_r (argc, argv, optstring, longopts, longind,
1093
long_only, posixly_correct, &getopt_data);
1094
1095
optind = getopt_data.optind;
1096
optarg = getopt_data.optarg;
1097
optopt = getopt_data.optopt;
1098
1099
return result;
1100
}
1101
1102
/* glibc gets a LSB-compliant getopt.
1103
Standalone applications get a POSIX-compliant getopt. */
1104
#if _LIBC
1105
enum { POSIXLY_CORRECT = 0 };
1106
#else
1107
enum { POSIXLY_CORRECT = 1 };
1108
#endif
1109
1110
int
1111
getopt (int argc, char *const *argv, const char *optstring)
1112
{
1113
return _getopt_internal (argc, (char **) argv, optstring, NULL, NULL, 0,
1114
POSIXLY_CORRECT);
1115
}
1116
1117
1118
#ifdef TEST
1119
1120
/* Compile with -DTEST to make an executable for use in testing
1121
the above definition of `getopt'. */
1122
1123
int
1124
main (int argc, char **argv)
1125
{
1126
int c;
1127
int digit_optind = 0;
1128
1129
while (1)
1130
{
1131
int this_option_optind = optind ? optind : 1;
1132
1133
c = getopt (argc, argv, "abc:d:0123456789");
1134
if (c == -1)
1135
break;
1136
1137
switch (c)
1138
{
1139
case '0':
1140
case '1':
1141
case '2':
1142
case '3':
1143
case '4':
1144
case '5':
1145
case '6':
1146
case '7':
1147
case '8':
1148
case '9':
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);
1153
break;
1154
1155
case 'a':
1156
printf ("option a\n");
1157
break;
1158
1159
case 'b':
1160
printf ("option b\n");
1161
break;
1162
1163
case 'c':
1164
printf ("option c with value `%s'\n", optarg);
1165
break;
1166
1167
case '?':
1168
break;
1169
1170
default:
1171
printf ("?? getopt returned character code 0%o ??\n", c);
1172
}
1173
}
1174
1175
if (optind < argc)
1176
{
1177
printf ("non-option ARGV-elements: ");
1178
while (optind < argc)
1179
printf ("%s ", argv[optind++]);
1180
printf ("\n");
1181
}
1182
1183
exit (0);
1184
}
1185
1186
#endif /* TEST */
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Version: 2.0.1