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- Committer: Bazaar Package Importer
- Author(s): Colin Watson
- Date: 2005-05-26 15:15:36 UTC
- mfrom: (1.1.2 upstream)
- Revision ID: james.westby@ubuntu.com-20050526151536-uzg8vlhedkx1nwcx
Tags: 0.25.0-1
* New upstream release.
- 'make distclean' fixed; revert workarounds.
- 'make distclean' fixed; revert workarounds.
- files added:
- ABOUT-NLS
- lib
- m4
- po
- files removed:
- common/ChangeLog
- compat
- compat/lib
- compat/m4
- compat/po
- files modified:
- INSTALL
added
removed
lib/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
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 2, or (at your option)
12
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 along
20
with this program; if not, write to the Free Software Foundation,
21
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22
23
/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
24
Ditto for AIX 3.2 and <stdlib.h>. */
25
#ifndef _NO_PROTO
26
# define _NO_PROTO
27
#endif
28
29
#ifdef HAVE_CONFIG_H
30
# include <config.h>
31
#endif
32
33
#include <stdio.h>
34
35
/* This needs to come after some library #include
36
to get __GNU_LIBRARY__ defined. */
37
#ifdef __GNU_LIBRARY__
38
/* Don't include stdlib.h for non-GNU C libraries because some of them
39
contain conflicting prototypes for getopt. */
40
# include <stdlib.h>
41
# include <unistd.h>
42
#endif /* GNU C library. */
43
44
#include <string.h>
45
46
#ifdef VMS
47
# include <unixlib.h>
48
#endif
49
50
#ifdef _LIBC
51
# include <libintl.h>
52
#else
53
# include "gettext.h"
54
# define _(msgid) gettext (msgid)
55
#endif
56
57
#if defined _LIBC && defined USE_IN_LIBIO
58
# include <wchar.h>
59
#endif
60
61
#ifndef attribute_hidden
62
# define attribute_hidden
63
#endif
64
65
/* Unlike standard Unix `getopt', functions like `getopt_long'
66
let the user intersperse the options with the other arguments.
67
68
As `getopt_long' works, it permutes the elements of ARGV so that,
69
when it is done, all the options precede everything else. Thus
70
all application programs are extended to handle flexible argument order.
71
72
Using `getopt' or setting the environment variable POSIXLY_CORRECT
73
disables permutation.
74
Then the application's behavior is completely standard.
75
76
GNU application programs can use a third alternative mode in which
77
they can distinguish the relative order of options and other arguments. */
78
79
#include "getopt.h"
80
#include "getopt_int.h"
81
82
/* For communication from `getopt' to the caller.
83
When `getopt' finds an option that takes an argument,
84
the argument value is returned here.
85
Also, when `ordering' is RETURN_IN_ORDER,
86
each non-option ARGV-element is returned here. */
87
88
char *optarg;
89
90
/* Index in ARGV of the next element to be scanned.
91
This is used for communication to and from the caller
92
and for communication between successive calls to `getopt'.
93
94
On entry to `getopt', zero means this is the first call; initialize.
95
96
When `getopt' returns -1, this is the index of the first of the
97
non-option elements that the caller should itself scan.
98
99
Otherwise, `optind' communicates from one call to the next
100
how much of ARGV has been scanned so far. */
101
102
/* 1003.2 says this must be 1 before any call. */
103
int optind = 1;
104
105
/* Callers store zero here to inhibit the error message
106
for unrecognized options. */
107
108
int opterr = 1;
109
110
/* Set to an option character which was unrecognized.
111
This must be initialized on some systems to avoid linking in the
112
system's own getopt implementation. */
113
114
int optopt = '?';
115
116
/* Keep a global copy of all internal members of getopt_data. */
117
118
static struct _getopt_data getopt_data;
119
120
121
#ifndef __GNU_LIBRARY__
122
123
/* Avoid depending on library functions or files
124
whose names are inconsistent. */
125
126
#ifndef getenv
127
extern char *getenv ();
128
#endif
129
130
#endif /* not __GNU_LIBRARY__ */
131
132
#ifdef _LIBC
133
/* Stored original parameters.
134
XXX This is no good solution. We should rather copy the args so
135
that we can compare them later. But we must not use malloc(3). */
136
extern int __libc_argc;
137
extern char **__libc_argv;
138
139
/* Bash 2.0 gives us an environment variable containing flags
140
indicating ARGV elements that should not be considered arguments. */
141
142
# ifdef USE_NONOPTION_FLAGS
143
/* Defined in getopt_init.c */
144
extern char *__getopt_nonoption_flags;
145
# endif
146
147
# ifdef USE_NONOPTION_FLAGS
148
# define SWAP_FLAGS(ch1, ch2) \
149
if (d->__nonoption_flags_len > 0) \
150
{ \
151
char __tmp = __getopt_nonoption_flags[ch1]; \
152
__getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
153
__getopt_nonoption_flags[ch2] = __tmp; \
154
}
155
# else
156
# define SWAP_FLAGS(ch1, ch2)
157
# endif
158
#else /* !_LIBC */
159
# define SWAP_FLAGS(ch1, ch2)
160
#endif /* _LIBC */
161
162
/* Exchange two adjacent subsequences of ARGV.
163
One subsequence is elements [first_nonopt,last_nonopt)
164
which contains all the non-options that have been skipped so far.
165
The other is elements [last_nonopt,optind), which contains all
166
the options processed since those non-options were skipped.
167
168
`first_nonopt' and `last_nonopt' are relocated so that they describe
169
the new indices of the non-options in ARGV after they are moved. */
170
171
static void
172
exchange (char **argv, struct _getopt_data *d)
173
{
174
int bottom = d->__first_nonopt;
175
int middle = d->__last_nonopt;
176
int top = d->optind;
177
char *tem;
178
179
/* Exchange the shorter segment with the far end of the longer segment.
180
That puts the shorter segment into the right place.
181
It leaves the longer segment in the right place overall,
182
but it consists of two parts that need to be swapped next. */
183
184
#if defined _LIBC && defined USE_NONOPTION_FLAGS
185
/* First make sure the handling of the `__getopt_nonoption_flags'
186
string can work normally. Our top argument must be in the range
187
of the string. */
188
if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
189
{
190
/* We must extend the array. The user plays games with us and
191
presents new arguments. */
192
char *new_str = malloc (top + 1);
193
if (new_str == NULL)
194
d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
195
else
196
{
197
memset (__mempcpy (new_str, __getopt_nonoption_flags,
198
d->__nonoption_flags_max_len),
199
'\0', top + 1 - d->__nonoption_flags_max_len);
200
d->__nonoption_flags_max_len = top + 1;
201
__getopt_nonoption_flags = new_str;
202
}
203
}
204
#endif
205
206
while (top > middle && middle > bottom)
207
{
208
if (top - middle > middle - bottom)
209
{
210
/* Bottom segment is the short one. */
211
int len = middle - bottom;
212
register int i;
213
214
/* Swap it with the top part of the top segment. */
215
for (i = 0; i < len; i++)
216
{
217
tem = argv[bottom + i];
218
argv[bottom + i] = argv[top - (middle - bottom) + i];
219
argv[top - (middle - bottom) + i] = tem;
220
SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
221
}
222
/* Exclude the moved bottom segment from further swapping. */
223
top -= len;
224
}
225
else
226
{
227
/* Top segment is the short one. */
228
int len = top - middle;
229
register int i;
230
231
/* Swap it with the bottom part of the bottom segment. */
232
for (i = 0; i < len; i++)
233
{
234
tem = argv[bottom + i];
235
argv[bottom + i] = argv[middle + i];
236
argv[middle + i] = tem;
237
SWAP_FLAGS (bottom + i, middle + i);
238
}
239
/* Exclude the moved top segment from further swapping. */
240
bottom += len;
241
}
242
}
243
244
/* Update records for the slots the non-options now occupy. */
245
246
d->__first_nonopt += (d->optind - d->__last_nonopt);
247
d->__last_nonopt = d->optind;
248
}
249
250
/* Initialize the internal data when the first call is made. */
251
252
static const char *
253
_getopt_initialize (int argc, char **argv, const char *optstring,
254
int posixly_correct, struct _getopt_data *d)
255
{
256
/* Start processing options with ARGV-element 1 (since ARGV-element 0
257
is the program name); the sequence of previously skipped
258
non-option ARGV-elements is empty. */
259
260
d->__first_nonopt = d->__last_nonopt = d->optind;
261
262
d->__nextchar = NULL;
263
264
d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT");
265
266
/* Determine how to handle the ordering of options and nonoptions. */
267
268
if (optstring[0] == '-')
269
{
270
d->__ordering = RETURN_IN_ORDER;
271
++optstring;
272
}
273
else if (optstring[0] == '+')
274
{
275
d->__ordering = REQUIRE_ORDER;
276
++optstring;
277
}
278
else if (d->__posixly_correct)
279
d->__ordering = REQUIRE_ORDER;
280
else
281
d->__ordering = PERMUTE;
282
283
#if defined _LIBC && defined USE_NONOPTION_FLAGS
284
if (!d->__posixly_correct
285
&& argc == __libc_argc && argv == __libc_argv)
286
{
287
if (d->__nonoption_flags_max_len == 0)
288
{
289
if (__getopt_nonoption_flags == NULL
290
|| __getopt_nonoption_flags[0] == '\0')
291
d->__nonoption_flags_max_len = -1;
292
else
293
{
294
const char *orig_str = __getopt_nonoption_flags;
295
int len = d->__nonoption_flags_max_len = strlen (orig_str);
296
if (d->__nonoption_flags_max_len < argc)
297
d->__nonoption_flags_max_len = argc;
298
__getopt_nonoption_flags =
299
(char *) malloc (d->__nonoption_flags_max_len);
300
if (__getopt_nonoption_flags == NULL)
301
d->__nonoption_flags_max_len = -1;
302
else
303
memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
304
'\0', d->__nonoption_flags_max_len - len);
305
}
306
}
307
d->__nonoption_flags_len = d->__nonoption_flags_max_len;
308
}
309
else
310
d->__nonoption_flags_len = 0;
311
#endif
312
313
return optstring;
314
}
315
316
/* Scan elements of ARGV (whose length is ARGC) for option characters
317
given in OPTSTRING.
318
319
If an element of ARGV starts with '-', and is not exactly "-" or "--",
320
then it is an option element. The characters of this element
321
(aside from the initial '-') are option characters. If `getopt'
322
is called repeatedly, it returns successively each of the option characters
323
from each of the option elements.
324
325
If `getopt' finds another option character, it returns that character,
326
updating `optind' and `nextchar' so that the next call to `getopt' can
327
resume the scan with the following option character or ARGV-element.
328
329
If there are no more option characters, `getopt' returns -1.
330
Then `optind' is the index in ARGV of the first ARGV-element
331
that is not an option. (The ARGV-elements have been permuted
332
so that those that are not options now come last.)
333
334
OPTSTRING is a string containing the legitimate option characters.
335
If an option character is seen that is not listed in OPTSTRING,
336
return '?' after printing an error message. If you set `opterr' to
337
zero, the error message is suppressed but we still return '?'.
338
339
If a char in OPTSTRING is followed by a colon, that means it wants an arg,
340
so the following text in the same ARGV-element, or the text of the following
341
ARGV-element, is returned in `optarg'. Two colons mean an option that
342
wants an optional arg; if there is text in the current ARGV-element,
343
it is returned in `optarg', otherwise `optarg' is set to zero.
344
345
If OPTSTRING starts with `-' or `+', it requests different methods of
346
handling the non-option ARGV-elements.
347
See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
348
349
Long-named options begin with `--' instead of `-'.
350
Their names may be abbreviated as long as the abbreviation is unique
351
or is an exact match for some defined option. If they have an
352
argument, it follows the option name in the same ARGV-element, separated
353
from the option name by a `=', or else the in next ARGV-element.
354
When `getopt' finds a long-named option, it returns 0 if that option's
355
`flag' field is nonzero, the value of the option's `val' field
356
if the `flag' field is zero.
357
358
LONGOPTS is a vector of `struct option' terminated by an
359
element containing a name which is zero.
360
361
LONGIND returns the index in LONGOPT of the long-named option found.
362
It is only valid when a long-named option has been found by the most
363
recent call.
364
365
If LONG_ONLY is nonzero, '-' as well as '--' can introduce
366
long-named options.
367
368
If POSIXLY_CORRECT is nonzero, behave as if the POSIXLY_CORRECT
369
environment variable were set. */
370
371
int
372
_getopt_internal_r (int argc, char **argv, const char *optstring,
373
const struct option *longopts, int *longind,
374
int long_only, int posixly_correct, struct _getopt_data *d)
375
{
376
int print_errors = d->opterr;
377
if (optstring[0] == ':')
378
print_errors = 0;
379
380
if (argc < 1)
381
return -1;
382
383
d->optarg = NULL;
384
385
if (d->optind == 0 || !d->__initialized)
386
{
387
if (d->optind == 0)
388
d->optind = 1; /* Don't scan ARGV[0], the program name. */
389
optstring = _getopt_initialize (argc, argv, optstring,
390
posixly_correct, d);
391
d->__initialized = 1;
392
}
393
394
/* Test whether ARGV[optind] points to a non-option argument.
395
Either it does not have option syntax, or there is an environment flag
396
from the shell indicating it is not an option. The later information
397
is only used when the used in the GNU libc. */
398
#if defined _LIBC && defined USE_NONOPTION_FLAGS
399
# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
400
|| (d->optind < d->__nonoption_flags_len \
401
&& __getopt_nonoption_flags[d->optind] == '1'))
402
#else
403
# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
404
#endif
405
406
if (d->__nextchar == NULL || *d->__nextchar == '\0')
407
{
408
/* Advance to the next ARGV-element. */
409
410
/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
411
moved back by the user (who may also have changed the arguments). */
412
if (d->__last_nonopt > d->optind)
413
d->__last_nonopt = d->optind;
414
if (d->__first_nonopt > d->optind)
415
d->__first_nonopt = d->optind;
416
417
if (d->__ordering == PERMUTE)
418
{
419
/* If we have just processed some options following some non-options,
420
exchange them so that the options come first. */
421
422
if (d->__first_nonopt != d->__last_nonopt
423
&& d->__last_nonopt != d->optind)
424
exchange ((char **) argv, d);
425
else if (d->__last_nonopt != d->optind)
426
d->__first_nonopt = d->optind;
427
428
/* Skip any additional non-options
429
and extend the range of non-options previously skipped. */
430
431
while (d->optind < argc && NONOPTION_P)
432
d->optind++;
433
d->__last_nonopt = d->optind;
434
}
435
436
/* The special ARGV-element `--' means premature end of options.
437
Skip it like a null option,
438
then exchange with previous non-options as if it were an option,
439
then skip everything else like a non-option. */
440
441
if (d->optind != argc && !strcmp (argv[d->optind], "--"))
442
{
443
d->optind++;
444
445
if (d->__first_nonopt != d->__last_nonopt
446
&& d->__last_nonopt != d->optind)
447
exchange ((char **) argv, d);
448
else if (d->__first_nonopt == d->__last_nonopt)
449
d->__first_nonopt = d->optind;
450
d->__last_nonopt = argc;
451
452
d->optind = argc;
453
}
454
455
/* If we have done all the ARGV-elements, stop the scan
456
and back over any non-options that we skipped and permuted. */
457
458
if (d->optind == argc)
459
{
460
/* Set the next-arg-index to point at the non-options
461
that we previously skipped, so the caller will digest them. */
462
if (d->__first_nonopt != d->__last_nonopt)
463
d->optind = d->__first_nonopt;
464
return -1;
465
}
466
467
/* If we have come to a non-option and did not permute it,
468
either stop the scan or describe it to the caller and pass it by. */
469
470
if (NONOPTION_P)
471
{
472
if (d->__ordering == REQUIRE_ORDER)
473
return -1;
474
d->optarg = argv[d->optind++];
475
return 1;
476
}
477
478
/* We have found another option-ARGV-element.
479
Skip the initial punctuation. */
480
481
d->__nextchar = (argv[d->optind] + 1
482
+ (longopts != NULL && argv[d->optind][1] == '-'));
483
}
484
485
/* Decode the current option-ARGV-element. */
486
487
/* Check whether the ARGV-element is a long option.
488
489
If long_only and the ARGV-element has the form "-f", where f is
490
a valid short option, don't consider it an abbreviated form of
491
a long option that starts with f. Otherwise there would be no
492
way to give the -f short option.
493
494
On the other hand, if there's a long option "fubar" and
495
the ARGV-element is "-fu", do consider that an abbreviation of
496
the long option, just like "--fu", and not "-f" with arg "u".
497
498
This distinction seems to be the most useful approach. */
499
500
if (longopts != NULL
501
&& (argv[d->optind][1] == '-'
502
|| (long_only && (argv[d->optind][2]
503
|| !strchr (optstring, argv[d->optind][1])))))
504
{
505
char *nameend;
506
const struct option *p;
507
const struct option *pfound = NULL;
508
int exact = 0;
509
int ambig = 0;
510
int indfound = -1;
511
int option_index;
512
513
for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
514
/* Do nothing. */ ;
515
516
/* Test all long options for either exact match
517
or abbreviated matches. */
518
for (p = longopts, option_index = 0; p->name; p++, option_index++)
519
if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
520
{
521
if ((unsigned int) (nameend - d->__nextchar)
522
== (unsigned int) strlen (p->name))
523
{
524
/* Exact match found. */
525
pfound = p;
526
indfound = option_index;
527
exact = 1;
528
break;
529
}
530
else if (pfound == NULL)
531
{
532
/* First nonexact match found. */
533
pfound = p;
534
indfound = option_index;
535
}
536
else if (long_only
537
|| pfound->has_arg != p->has_arg
538
|| pfound->flag != p->flag
539
|| pfound->val != p->val)
540
/* Second or later nonexact match found. */
541
ambig = 1;
542
}
543
544
if (ambig && !exact)
545
{
546
if (print_errors)
547
{
548
#if defined _LIBC && defined USE_IN_LIBIO
549
char *buf;
550
551
if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"),
552
argv[0], argv[d->optind]) >= 0)
553
{
554
_IO_flockfile (stderr);
555
556
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
557
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
558
559
if (_IO_fwide (stderr, 0) > 0)
560
__fwprintf (stderr, L"%s", buf);
561
else
562
fputs (buf, stderr);
563
564
((_IO_FILE *) stderr)->_flags2 = old_flags2;
565
_IO_funlockfile (stderr);
566
567
free (buf);
568
}
569
#else
570
fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
571
argv[0], argv[d->optind]);
572
#endif
573
}
574
d->__nextchar += strlen (d->__nextchar);
575
d->optind++;
576
d->optopt = 0;
577
return '?';
578
}
579
580
if (pfound != NULL)
581
{
582
option_index = indfound;
583
d->optind++;
584
if (*nameend)
585
{
586
/* Don't test has_arg with >, because some C compilers don't
587
allow it to be used on enums. */
588
if (pfound->has_arg)
589
d->optarg = nameend + 1;
590
else
591
{
592
if (print_errors)
593
{
594
#if defined _LIBC && defined USE_IN_LIBIO
595
char *buf;
596
int n;
597
#endif
598
599
if (argv[d->optind - 1][1] == '-')
600
{
601
/* --option */
602
#if defined _LIBC && defined USE_IN_LIBIO
603
n = __asprintf (&buf, _("\
604
%s: option `--%s' doesn't allow an argument\n"),
605
argv[0], pfound->name);
606
#else
607
fprintf (stderr, _("\
608
%s: option `--%s' doesn't allow an argument\n"),
609
argv[0], pfound->name);
610
#endif
611
}
612
else
613
{
614
/* +option or -option */
615
#if defined _LIBC && defined USE_IN_LIBIO
616
n = __asprintf (&buf, _("\
617
%s: option `%c%s' doesn't allow an argument\n"),
618
argv[0], argv[d->optind - 1][0],
619
pfound->name);
620
#else
621
fprintf (stderr, _("\
622
%s: option `%c%s' doesn't allow an argument\n"),
623
argv[0], argv[d->optind - 1][0],
624
pfound->name);
625
#endif
626
}
627
628
#if defined _LIBC && defined USE_IN_LIBIO
629
if (n >= 0)
630
{
631
_IO_flockfile (stderr);
632
633
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
634
((_IO_FILE *) stderr)->_flags2
635
|= _IO_FLAGS2_NOTCANCEL;
636
637
if (_IO_fwide (stderr, 0) > 0)
638
__fwprintf (stderr, L"%s", buf);
639
else
640
fputs (buf, stderr);
641
642
((_IO_FILE *) stderr)->_flags2 = old_flags2;
643
_IO_funlockfile (stderr);
644
645
free (buf);
646
}
647
#endif
648
}
649
650
d->__nextchar += strlen (d->__nextchar);
651
652
d->optopt = pfound->val;
653
return '?';
654
}
655
}
656
else if (pfound->has_arg == 1)
657
{
658
if (d->optind < argc)
659
d->optarg = argv[d->optind++];
660
else
661
{
662
if (print_errors)
663
{
664
#if defined _LIBC && defined USE_IN_LIBIO
665
char *buf;
666
667
if (__asprintf (&buf, _("\
668
%s: option `%s' requires an argument\n"),
669
argv[0], argv[d->optind - 1]) >= 0)
670
{
671
_IO_flockfile (stderr);
672
673
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
674
((_IO_FILE *) stderr)->_flags2
675
|= _IO_FLAGS2_NOTCANCEL;
676
677
if (_IO_fwide (stderr, 0) > 0)
678
__fwprintf (stderr, L"%s", buf);
679
else
680
fputs (buf, stderr);
681
682
((_IO_FILE *) stderr)->_flags2 = old_flags2;
683
_IO_funlockfile (stderr);
684
685
free (buf);
686
}
687
#else
688
fprintf (stderr,
689
_("%s: option `%s' requires an argument\n"),
690
argv[0], argv[d->optind - 1]);
691
#endif
692
}
693
d->__nextchar += strlen (d->__nextchar);
694
d->optopt = pfound->val;
695
return optstring[0] == ':' ? ':' : '?';
696
}
697
}
698
d->__nextchar += strlen (d->__nextchar);
699
if (longind != NULL)
700
*longind = option_index;
701
if (pfound->flag)
702
{
703
*(pfound->flag) = pfound->val;
704
return 0;
705
}
706
return pfound->val;
707
}
708
709
/* Can't find it as a long option. If this is not getopt_long_only,
710
or the option starts with '--' or is not a valid short
711
option, then it's an error.
712
Otherwise interpret it as a short option. */
713
if (!long_only || argv[d->optind][1] == '-'
714
|| strchr (optstring, *d->__nextchar) == NULL)
715
{
716
if (print_errors)
717
{
718
#if defined _LIBC && defined USE_IN_LIBIO
719
char *buf;
720
int n;
721
#endif
722
723
if (argv[d->optind][1] == '-')
724
{
725
/* --option */
726
#if defined _LIBC && defined USE_IN_LIBIO
727
n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"),
728
argv[0], d->__nextchar);
729
#else
730
fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
731
argv[0], d->__nextchar);
732
#endif
733
}
734
else
735
{
736
/* +option or -option */
737
#if defined _LIBC && defined USE_IN_LIBIO
738
n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"),
739
argv[0], argv[d->optind][0], d->__nextchar);
740
#else
741
fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
742
argv[0], argv[d->optind][0], d->__nextchar);
743
#endif
744
}
745
746
#if defined _LIBC && defined USE_IN_LIBIO
747
if (n >= 0)
748
{
749
_IO_flockfile (stderr);
750
751
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
752
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
753
754
if (_IO_fwide (stderr, 0) > 0)
755
__fwprintf (stderr, L"%s", buf);
756
else
757
fputs (buf, stderr);
758
759
((_IO_FILE *) stderr)->_flags2 = old_flags2;
760
_IO_funlockfile (stderr);
761
762
free (buf);
763
}
764
#endif
765
}
766
d->__nextchar = (char *) "";
767
d->optind++;
768
d->optopt = 0;
769
return '?';
770
}
771
}
772
773
/* Look at and handle the next short option-character. */
774
775
{
776
char c = *d->__nextchar++;
777
char *temp = strchr (optstring, c);
778
779
/* Increment `optind' when we start to process its last character. */
780
if (*d->__nextchar == '\0')
781
++d->optind;
782
783
if (temp == NULL || c == ':')
784
{
785
if (print_errors)
786
{
787
#if defined _LIBC && defined USE_IN_LIBIO
788
char *buf;
789
int n;
790
#endif
791
792
if (d->__posixly_correct)
793
{
794
/* 1003.2 specifies the format of this message. */
795
#if defined _LIBC && defined USE_IN_LIBIO
796
n = __asprintf (&buf, _("%s: illegal option -- %c\n"),
797
argv[0], c);
798
#else
799
fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
800
#endif
801
}
802
else
803
{
804
#if defined _LIBC && defined USE_IN_LIBIO
805
n = __asprintf (&buf, _("%s: invalid option -- %c\n"),
806
argv[0], c);
807
#else
808
fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c);
809
#endif
810
}
811
812
#if defined _LIBC && defined USE_IN_LIBIO
813
if (n >= 0)
814
{
815
_IO_flockfile (stderr);
816
817
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
818
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
819
820
if (_IO_fwide (stderr, 0) > 0)
821
__fwprintf (stderr, L"%s", buf);
822
else
823
fputs (buf, stderr);
824
825
((_IO_FILE *) stderr)->_flags2 = old_flags2;
826
_IO_funlockfile (stderr);
827
828
free (buf);
829
}
830
#endif
831
}
832
d->optopt = c;
833
return '?';
834
}
835
/* Convenience. Treat POSIX -W foo same as long option --foo */
836
if (temp[0] == 'W' && temp[1] == ';')
837
{
838
char *nameend;
839
const struct option *p;
840
const struct option *pfound = NULL;
841
int exact = 0;
842
int ambig = 0;
843
int indfound = 0;
844
int option_index;
845
846
/* This is an option that requires an argument. */
847
if (*d->__nextchar != '\0')
848
{
849
d->optarg = d->__nextchar;
850
/* If we end this ARGV-element by taking the rest as an arg,
851
we must advance to the next element now. */
852
d->optind++;
853
}
854
else if (d->optind == argc)
855
{
856
if (print_errors)
857
{
858
/* 1003.2 specifies the format of this message. */
859
#if defined _LIBC && defined USE_IN_LIBIO
860
char *buf;
861
862
if (__asprintf (&buf,
863
_("%s: option requires an argument -- %c\n"),
864
argv[0], c) >= 0)
865
{
866
_IO_flockfile (stderr);
867
868
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
869
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
870
871
if (_IO_fwide (stderr, 0) > 0)
872
__fwprintf (stderr, L"%s", buf);
873
else
874
fputs (buf, stderr);
875
876
((_IO_FILE *) stderr)->_flags2 = old_flags2;
877
_IO_funlockfile (stderr);
878
879
free (buf);
880
}
881
#else
882
fprintf (stderr, _("%s: option requires an argument -- %c\n"),
883
argv[0], c);
884
#endif
885
}
886
d->optopt = c;
887
if (optstring[0] == ':')
888
c = ':';
889
else
890
c = '?';
891
return c;
892
}
893
else
894
/* We already incremented `d->optind' once;
895
increment it again when taking next ARGV-elt as argument. */
896
d->optarg = argv[d->optind++];
897
898
/* optarg is now the argument, see if it's in the
899
table of longopts. */
900
901
for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
902
nameend++)
903
/* Do nothing. */ ;
904
905
/* Test all long options for either exact match
906
or abbreviated matches. */
907
for (p = longopts, option_index = 0; p->name; p++, option_index++)
908
if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
909
{
910
if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
911
{
912
/* Exact match found. */
913
pfound = p;
914
indfound = option_index;
915
exact = 1;
916
break;
917
}
918
else if (pfound == NULL)
919
{
920
/* First nonexact match found. */
921
pfound = p;
922
indfound = option_index;
923
}
924
else
925
/* Second or later nonexact match found. */
926
ambig = 1;
927
}
928
if (ambig && !exact)
929
{
930
if (print_errors)
931
{
932
#if defined _LIBC && defined USE_IN_LIBIO
933
char *buf;
934
935
if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"),
936
argv[0], argv[d->optind]) >= 0)
937
{
938
_IO_flockfile (stderr);
939
940
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
941
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
942
943
if (_IO_fwide (stderr, 0) > 0)
944
__fwprintf (stderr, L"%s", buf);
945
else
946
fputs (buf, stderr);
947
948
((_IO_FILE *) stderr)->_flags2 = old_flags2;
949
_IO_funlockfile (stderr);
950
951
free (buf);
952
}
953
#else
954
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
955
argv[0], argv[d->optind]);
956
#endif
957
}
958
d->__nextchar += strlen (d->__nextchar);
959
d->optind++;
960
return '?';
961
}
962
if (pfound != NULL)
963
{
964
option_index = indfound;
965
if (*nameend)
966
{
967
/* Don't test has_arg with >, because some C compilers don't
968
allow it to be used on enums. */
969
if (pfound->has_arg)
970
d->optarg = nameend + 1;
971
else
972
{
973
if (print_errors)
974
{
975
#if defined _LIBC && defined USE_IN_LIBIO
976
char *buf;
977
978
if (__asprintf (&buf, _("\
979
%s: option `-W %s' doesn't allow an argument\n"),
980
argv[0], pfound->name) >= 0)
981
{
982
_IO_flockfile (stderr);
983
984
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
985
((_IO_FILE *) stderr)->_flags2
986
|= _IO_FLAGS2_NOTCANCEL;
987
988
if (_IO_fwide (stderr, 0) > 0)
989
__fwprintf (stderr, L"%s", buf);
990
else
991
fputs (buf, stderr);
992
993
((_IO_FILE *) stderr)->_flags2 = old_flags2;
994
_IO_funlockfile (stderr);
995
996
free (buf);
997
}
998
#else
999
fprintf (stderr, _("\
1000
%s: option `-W %s' doesn't allow an argument\n"),
1001
argv[0], pfound->name);
1002
#endif
1003
}
1004
1005
d->__nextchar += strlen (d->__nextchar);
1006
return '?';
1007
}
1008
}
1009
else if (pfound->has_arg == 1)
1010
{
1011
if (d->optind < argc)
1012
d->optarg = argv[d->optind++];
1013
else
1014
{
1015
if (print_errors)
1016
{
1017
#if defined _LIBC && defined USE_IN_LIBIO
1018
char *buf;
1019
1020
if (__asprintf (&buf, _("\
1021
%s: option `%s' requires an argument\n"),
1022
argv[0], argv[d->optind - 1]) >= 0)
1023
{
1024
_IO_flockfile (stderr);
1025
1026
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1027
((_IO_FILE *) stderr)->_flags2
1028
|= _IO_FLAGS2_NOTCANCEL;
1029
1030
if (_IO_fwide (stderr, 0) > 0)
1031
__fwprintf (stderr, L"%s", buf);
1032
else
1033
fputs (buf, stderr);
1034
1035
((_IO_FILE *) stderr)->_flags2 = old_flags2;
1036
_IO_funlockfile (stderr);
1037
1038
free (buf);
1039
}
1040
#else
1041
fprintf (stderr,
1042
_("%s: option `%s' requires an argument\n"),
1043
argv[0], argv[d->optind - 1]);
1044
#endif
1045
}
1046
d->__nextchar += strlen (d->__nextchar);
1047
return optstring[0] == ':' ? ':' : '?';
1048
}
1049
}
1050
d->__nextchar += strlen (d->__nextchar);
1051
if (longind != NULL)
1052
*longind = option_index;
1053
if (pfound->flag)
1054
{
1055
*(pfound->flag) = pfound->val;
1056
return 0;
1057
}
1058
return pfound->val;
1059
}
1060
d->__nextchar = NULL;
1061
return 'W'; /* Let the application handle it. */
1062
}
1063
if (temp[1] == ':')
1064
{
1065
if (temp[2] == ':')
1066
{
1067
/* This is an option that accepts an argument optionally. */
1068
if (*d->__nextchar != '\0')
1069
{
1070
d->optarg = d->__nextchar;
1071
d->optind++;
1072
}
1073
else
1074
d->optarg = NULL;
1075
d->__nextchar = NULL;
1076
}
1077
else
1078
{
1079
/* This is an option that requires an argument. */
1080
if (*d->__nextchar != '\0')
1081
{
1082
d->optarg = d->__nextchar;
1083
/* If we end this ARGV-element by taking the rest as an arg,
1084
we must advance to the next element now. */
1085
d->optind++;
1086
}
1087
else if (d->optind == argc)
1088
{
1089
if (print_errors)
1090
{
1091
/* 1003.2 specifies the format of this message. */
1092
#if defined _LIBC && defined USE_IN_LIBIO
1093
char *buf;
1094
1095
if (__asprintf (&buf, _("\
1096
%s: option requires an argument -- %c\n"),
1097
argv[0], c) >= 0)
1098
{
1099
_IO_flockfile (stderr);
1100
1101
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
1102
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
1103
1104
if (_IO_fwide (stderr, 0) > 0)
1105
__fwprintf (stderr, L"%s", buf);
1106
else
1107
fputs (buf, stderr);
1108
1109
((_IO_FILE *) stderr)->_flags2 = old_flags2;
1110
_IO_funlockfile (stderr);
1111
1112
free (buf);
1113
}
1114
#else
1115
fprintf (stderr,
1116
_("%s: option requires an argument -- %c\n"),
1117
argv[0], c);
1118
#endif
1119
}
1120
d->optopt = c;
1121
if (optstring[0] == ':')
1122
c = ':';
1123
else
1124
c = '?';
1125
}
1126
else
1127
/* We already incremented `optind' once;
1128
increment it again when taking next ARGV-elt as argument. */
1129
d->optarg = argv[d->optind++];
1130
d->__nextchar = NULL;
1131
}
1132
}
1133
return c;
1134
}
1135
}
1136
1137
int
1138
_getopt_internal (int argc, char **argv, const char *optstring,
1139
const struct option *longopts, int *longind,
1140
int long_only, int posixly_correct)
1141
{
1142
int result;
1143
1144
getopt_data.optind = optind;
1145
getopt_data.opterr = opterr;
1146
1147
result = _getopt_internal_r (argc, argv, optstring, longopts, longind,
1148
long_only, posixly_correct, &getopt_data);
1149
1150
optind = getopt_data.optind;
1151
optarg = getopt_data.optarg;
1152
optopt = getopt_data.optopt;
1153
1154
return result;
1155
}
1156
1157
/* glibc gets a LSB-compliant getopt.
1158
Standalone applications get a POSIX-compliant getopt. */
1159
#if _LIBC
1160
enum { POSIXLY_CORRECT = 0 };
1161
#else
1162
enum { POSIXLY_CORRECT = 1 };
1163
#endif
1164
1165
int
1166
getopt (int argc, char *const *argv, const char *optstring)
1167
{
1168
return _getopt_internal (argc, (char **) argv, optstring, NULL, NULL, 0,
1169
POSIXLY_CORRECT);
1170
}
1171
1172
1173
#ifdef TEST
1174
1175
/* Compile with -DTEST to make an executable for use in testing
1176
the above definition of `getopt'. */
1177
1178
int
1179
main (int argc, char **argv)
1180
{
1181
int c;
1182
int digit_optind = 0;
1183
1184
while (1)
1185
{
1186
int this_option_optind = optind ? optind : 1;
1187
1188
c = getopt (argc, argv, "abc:d:0123456789");
1189
if (c == -1)
1190
break;
1191
1192
switch (c)
1193
{
1194
case '0':
1195
case '1':
1196
case '2':
1197
case '3':
1198
case '4':
1199
case '5':
1200
case '6':
1201
case '7':
1202
case '8':
1203
case '9':
1204
if (digit_optind != 0 && digit_optind != this_option_optind)
1205
printf ("digits occur in two different argv-elements.\n");
1206
digit_optind = this_option_optind;
1207
printf ("option %c\n", c);
1208
break;
1209
1210
case 'a':
1211
printf ("option a\n");
1212
break;
1213
1214
case 'b':
1215
printf ("option b\n");
1216
break;
1217
1218
case 'c':
1219
printf ("option c with value `%s'\n", optarg);
1220
break;
1221
1222
case '?':
1223
break;
1224
1225
default:
1226
printf ("?? getopt returned character code 0%o ??\n", c);
1227
}
1228
}
1229
1230
if (optind < argc)
1231
{
1232
printf ("non-option ARGV-elements: ");
1233
while (optind < argc)
1234
printf ("%s ", argv[optind++]);
1235
printf ("\n");
1236
}
1237
1238
exit (0);
1239
}
1240
1241
#endif /* TEST */
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Version: 2.0.1