2
NOTE: The canonical source of this file is maintained with the GNU
3
C Library. Bugs can be reported to bug-glibc@gnu.org.
5
Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99
6
Free Software Foundation, Inc.
8
This program is free software; you can redistribute it and/or modify it
9
under the terms of the GNU General Public License as published by the
10
Free Software Foundation; either version 3, or (at your option) any
13
This program is distributed in the hope that it will be useful,
14
but WITHOUT ANY WARRANTY; without even the implied warranty of
15
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16
GNU General Public License for more details.
18
You should have received a copy of the GNU General Public License
19
along with this program. If not, see <http://www.gnu.org/licenses/>. */
21
/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
22
Ditto for AIX 3.2 and <stdlib.h>. */
30
# if !defined __STDC__ || !__STDC__
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/* This is a separate conditional since some stdc systems
32
reject `defined (const)'. */
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/* Comment out all this code if we are using the GNU C Library, and are not
42
actually compiling the library itself. This code is part of the GNU C
43
Library, but also included in many other GNU distributions. Compiling
44
and linking in this code is a waste when using the GNU C library
45
(especially if it is a shared library). Rather than having every GNU
46
program understand `configure --with-gnu-libc' and omit the object files,
47
it is simpler to just do this in the source for each such file. */
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#define GETOPT_INTERFACE_VERSION 2
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#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
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# include <gnu-versions.h>
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# if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
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/* This needs to come after some library #include
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to get __GNU_LIBRARY__ defined. */
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#ifdef __GNU_LIBRARY__
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/* Don't include stdlib.h for non-GNU C libraries because some of them
64
contain conflicting prototypes for getopt. */
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#endif /* GNU C library. */
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# if HAVE_STRING_H - 0
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/* This is for other GNU distributions with internationalized messages.
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When compiling libc, the _ macro is predefined. */
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# ifdef HAVE_LIBINTL_H
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# define _(msgid) gettext (msgid)
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# define _(msgid) (msgid)
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/* This version of `getopt' appears to the caller like standard Unix `getopt'
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but it behaves differently for the user, since it allows the user
89
to intersperse the options with the other arguments.
91
As `getopt' works, it permutes the elements of ARGV so that,
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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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Setting the environment variable POSIXLY_CORRECT disables permutation.
96
Then the behavior is completely standard.
98
GNU application programs can use a third alternative mode in which
99
they can distinguish the relative order of options and other arguments. */
103
/* For communication from `getopt' to the caller.
104
When `getopt' finds an option that takes an argument,
105
the argument value is returned here.
106
Also, when `ordering' is RETURN_IN_ORDER,
107
each non-option ARGV-element is returned here. */
111
/* Index in ARGV of the next element to be scanned.
112
This is used for communication to and from the caller
113
and for communication between successive calls to `getopt'.
115
On entry to `getopt', zero means this is the first call; initialize.
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When `getopt' returns -1, this is the index of the first of the
118
non-option elements that the caller should itself scan.
120
Otherwise, `optind' communicates from one call to the next
121
how much of ARGV has been scanned so far. */
123
/* 1003.2 says this must be 1 before any call. */
126
/* Formerly, initialization of getopt depended on optind==0, which
127
causes problems with re-calling getopt as programs generally don't
130
int __getopt_initialized;
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/* The next char to be scanned in the option-element
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in which the last option character we returned was found.
134
This allows us to pick up the scan where we left off.
136
If this is zero, or a null string, it means resume the scan
137
by advancing to the next ARGV-element. */
139
static char *nextchar;
141
/* Callers store zero here to inhibit the error message
142
for unrecognized options. */
146
/* Set to an option character which was unrecognized.
147
This must be initialized on some systems to avoid linking in the
148
system's own getopt implementation. */
152
/* Describe how to deal with options that follow non-option ARGV-elements.
154
If the caller did not specify anything,
155
the default is REQUIRE_ORDER if the environment variable
156
POSIXLY_CORRECT is defined, PERMUTE otherwise.
158
REQUIRE_ORDER means don't recognize them as options;
159
stop option processing when the first non-option is seen.
160
This is what Unix does.
161
This mode of operation is selected by either setting the environment
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variable POSIXLY_CORRECT, or using `+' as the first character
163
of the list of option characters.
165
PERMUTE is the default. We permute the contents of ARGV as we scan,
166
so that eventually all the non-options are at the end. This allows options
167
to be given in any order, even with programs that were not written to
170
RETURN_IN_ORDER is an option available to programs that were written
171
to expect options and other ARGV-elements in any order and that care about
172
the ordering of the two. We describe each non-option ARGV-element
173
as if it were the argument of an option with character code 1.
174
Using `-' as the first character of the list of option characters
175
selects this mode of operation.
177
The special argument `--' forces an end of option-scanning regardless
178
of the value of `ordering'. In the case of RETURN_IN_ORDER, only
179
`--' can cause `getopt' to return -1 with `optind' != ARGC. */
183
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
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/* Value of POSIXLY_CORRECT environment variable. */
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static char *posixly_correct;
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#ifdef __GNU_LIBRARY__
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/* We want to avoid inclusion of string.h with non-GNU libraries
191
because there are many ways it can cause trouble.
192
On some systems, it contains special magic macros that don't work
195
# define my_index strchr
200
/* Avoid depending on library functions or files
201
whose names are inconsistent. */
204
extern char *getenv ();
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/* If using GCC, we can safely declare strlen this way.
222
If not using GCC, it is ok not to declare it. */
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/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
225
That was relevant to code that was here before. */
226
# if (!defined __STDC__ || !__STDC__) && !defined strlen
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/* gcc with -traditional declares the built-in strlen to return int,
228
and has done so at least since version 2.4.5. -- rms. */
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extern int strlen (const char *);
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# endif /* not __STDC__ */
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#endif /* __GNUC__ */
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#endif /* not __GNU_LIBRARY__ */
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/* Handle permutation of arguments. */
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/* Describe the part of ARGV that contains non-options that have
238
been skipped. `first_nonopt' is the index in ARGV of the first of them;
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`last_nonopt' is the index after the last of them. */
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static int first_nonopt;
242
static int last_nonopt;
245
/* Bash 2.0 gives us an environment variable containing flags
246
indicating ARGV elements that should not be considered arguments. */
248
/* Defined in getopt_init.c */
249
extern char *__getopt_nonoption_flags;
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static int nonoption_flags_max_len;
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static int nonoption_flags_len;
254
static int original_argc;
255
static char *const *original_argv;
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/* Make sure the environment variable bash 2.0 puts in the environment
258
is valid for the getopt call we must make sure that the ARGV passed
259
to getopt is that one passed to the process. */
261
__attribute__ ((unused))
262
store_args_and_env (int argc, char *const *argv)
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/* XXX This is no good solution. We should rather copy the args so
265
that we can compare them later. But we must not use malloc(3). */
266
original_argc = argc;
267
original_argv = argv;
269
# ifdef text_set_element
270
text_set_element (__libc_subinit, store_args_and_env);
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# endif /* text_set_element */
273
# define SWAP_FLAGS(ch1, ch2) \
274
if (nonoption_flags_len > 0) \
276
char __tmp = __getopt_nonoption_flags[ch1]; \
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__getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
278
__getopt_nonoption_flags[ch2] = __tmp; \
281
# define SWAP_FLAGS(ch1, ch2)
284
/* Exchange two adjacent subsequences of ARGV.
285
One subsequence is elements [first_nonopt,last_nonopt)
286
which contains all the non-options that have been skipped so far.
287
The other is elements [last_nonopt,optind), which contains all
288
the options processed since those non-options were skipped.
290
`first_nonopt' and `last_nonopt' are relocated so that they describe
291
the new indices of the non-options in ARGV after they are moved. */
293
#if defined __STDC__ && __STDC__
294
static void exchange (char **);
301
int bottom = first_nonopt;
302
int middle = last_nonopt;
306
/* Exchange the shorter segment with the far end of the longer segment.
307
That puts the shorter segment into the right place.
308
It leaves the longer segment in the right place overall,
309
but it consists of two parts that need to be swapped next. */
312
/* First make sure the handling of the `__getopt_nonoption_flags'
313
string can work normally. Our top argument must be in the range
315
if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
317
/* We must extend the array. The user plays games with us and
318
presents new arguments. */
319
char *new_str = malloc (top + 1);
321
nonoption_flags_len = nonoption_flags_max_len = 0;
324
memset (__mempcpy (new_str, __getopt_nonoption_flags,
325
nonoption_flags_max_len),
326
'\0', top + 1 - nonoption_flags_max_len);
327
nonoption_flags_max_len = top + 1;
328
__getopt_nonoption_flags = new_str;
333
while (top > middle && middle > bottom)
335
if (top - middle > middle - bottom)
337
/* Bottom segment is the short one. */
338
int len = middle - bottom;
341
/* Swap it with the top part of the top segment. */
342
for (i = 0; i < len; i++)
344
tem = argv[bottom + i];
345
argv[bottom + i] = argv[top - (middle - bottom) + i];
346
argv[top - (middle - bottom) + i] = tem;
347
SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
349
/* Exclude the moved bottom segment from further swapping. */
354
/* Top segment is the short one. */
355
int len = top - middle;
358
/* Swap it with the bottom part of the bottom segment. */
359
for (i = 0; i < len; i++)
361
tem = argv[bottom + i];
362
argv[bottom + i] = argv[middle + i];
363
argv[middle + i] = tem;
364
SWAP_FLAGS (bottom + i, middle + i);
366
/* Exclude the moved top segment from further swapping. */
371
/* Update records for the slots the non-options now occupy. */
373
first_nonopt += (optind - last_nonopt);
374
last_nonopt = optind;
377
/* Initialize the internal data when the first call is made. */
379
#if defined __STDC__ && __STDC__
380
static const char *_getopt_initialize (int, char *const *, const char *);
383
_getopt_initialize (argc, argv, optstring)
386
const char *optstring;
388
/* Start processing options with ARGV-element 1 (since ARGV-element 0
389
is the program name); the sequence of previously skipped
390
non-option ARGV-elements is empty. */
392
first_nonopt = last_nonopt = optind;
396
posixly_correct = getenv ("POSIXLY_CORRECT");
398
/* Determine how to handle the ordering of options and nonoptions. */
400
if (optstring[0] == '-')
402
ordering = RETURN_IN_ORDER;
405
else if (optstring[0] == '+')
407
ordering = REQUIRE_ORDER;
410
else if (posixly_correct != NULL)
411
ordering = REQUIRE_ORDER;
416
if (posixly_correct == NULL
417
&& argc == original_argc && argv == original_argv)
419
if (nonoption_flags_max_len == 0)
421
if (__getopt_nonoption_flags == NULL
422
|| __getopt_nonoption_flags[0] == '\0')
423
nonoption_flags_max_len = -1;
426
const char *orig_str = __getopt_nonoption_flags;
427
int len = nonoption_flags_max_len = strlen (orig_str);
428
if (nonoption_flags_max_len < argc)
429
nonoption_flags_max_len = argc;
430
__getopt_nonoption_flags =
431
(char *) malloc (nonoption_flags_max_len);
432
if (__getopt_nonoption_flags == NULL)
433
nonoption_flags_max_len = -1;
435
memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
436
'\0', nonoption_flags_max_len - len);
439
nonoption_flags_len = nonoption_flags_max_len;
442
nonoption_flags_len = 0;
448
/* Scan elements of ARGV (whose length is ARGC) for option characters
451
If an element of ARGV starts with '-', and is not exactly "-" or "--",
452
then it is an option element. The characters of this element
453
(aside from the initial '-') are option characters. If `getopt'
454
is called repeatedly, it returns successively each of the option characters
455
from each of the option elements.
457
If `getopt' finds another option character, it returns that character,
458
updating `optind' and `nextchar' so that the next call to `getopt' can
459
resume the scan with the following option character or ARGV-element.
461
If there are no more option characters, `getopt' returns -1.
462
Then `optind' is the index in ARGV of the first ARGV-element
463
that is not an option. (The ARGV-elements have been permuted
464
so that those that are not options now come last.)
466
OPTSTRING is a string containing the legitimate option characters.
467
If an option character is seen that is not listed in OPTSTRING,
468
return '?' after printing an error message. If you set `opterr' to
469
zero, the error message is suppressed but we still return '?'.
471
If a char in OPTSTRING is followed by a colon, that means it wants an arg,
472
so the following text in the same ARGV-element, or the text of the following
473
ARGV-element, is returned in `optarg'. Two colons mean an option that
474
wants an optional arg; if there is text in the current ARGV-element,
475
it is returned in `optarg', otherwise `optarg' is set to zero.
477
If OPTSTRING starts with `-' or `+', it requests different methods of
478
handling the non-option ARGV-elements.
479
See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
481
Long-named options begin with `--' instead of `-'.
482
Their names may be abbreviated as long as the abbreviation is unique
483
or is an exact match for some defined option. If they have an
484
argument, it follows the option name in the same ARGV-element, separated
485
from the option name by a `=', or else the in next ARGV-element.
486
When `getopt' finds a long-named option, it returns 0 if that option's
487
`flag' field is nonzero, the value of the option's `val' field
488
if the `flag' field is zero.
490
The elements of ARGV aren't really const, because we permute them.
491
But we pretend they're const in the prototype to be compatible
494
LONGOPTS is a vector of `struct option' terminated by an
495
element containing a name which is zero.
497
LONGIND returns the index in LONGOPT of the long-named option found.
498
It is only valid when a long-named option has been found by the most
501
If LONG_ONLY is nonzero, '-' as well as '--' can introduce
502
long-named options. */
505
_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
508
const char *optstring;
509
const struct option *longopts;
515
if (optind == 0 || !__getopt_initialized)
518
optind = 1; /* Don't scan ARGV[0], the program name. */
519
optstring = _getopt_initialize (argc, argv, optstring);
520
__getopt_initialized = 1;
523
/* Test whether ARGV[optind] points to a non-option argument.
524
Either it does not have option syntax, or there is an environment flag
525
from the shell indicating it is not an option. The later information
526
is only used when the used in the GNU libc. */
528
# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
529
|| (optind < nonoption_flags_len \
530
&& __getopt_nonoption_flags[optind] == '1'))
532
# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
535
if (nextchar == NULL || *nextchar == '\0')
537
/* Advance to the next ARGV-element. */
539
/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
540
moved back by the user (who may also have changed the arguments). */
541
if (last_nonopt > optind)
542
last_nonopt = optind;
543
if (first_nonopt > optind)
544
first_nonopt = optind;
546
if (ordering == PERMUTE)
548
/* If we have just processed some options following some non-options,
549
exchange them so that the options come first. */
551
if (first_nonopt != last_nonopt && last_nonopt != optind)
552
exchange ((char **) argv);
553
else if (last_nonopt != optind)
554
first_nonopt = optind;
556
/* Skip any additional non-options
557
and extend the range of non-options previously skipped. */
559
while (optind < argc && NONOPTION_P)
561
last_nonopt = optind;
564
/* The special ARGV-element `--' means premature end of options.
565
Skip it like a null option,
566
then exchange with previous non-options as if it were an option,
567
then skip everything else like a non-option. */
569
if (optind != argc && !strcmp (argv[optind], "--"))
573
if (first_nonopt != last_nonopt && last_nonopt != optind)
574
exchange ((char **) argv);
575
else if (first_nonopt == last_nonopt)
576
first_nonopt = optind;
582
/* If we have done all the ARGV-elements, stop the scan
583
and back over any non-options that we skipped and permuted. */
587
/* Set the next-arg-index to point at the non-options
588
that we previously skipped, so the caller will digest them. */
589
if (first_nonopt != last_nonopt)
590
optind = first_nonopt;
594
/* If we have come to a non-option and did not permute it,
595
either stop the scan or describe it to the caller and pass it by. */
599
if (ordering == REQUIRE_ORDER)
601
optarg = argv[optind++];
605
/* We have found another option-ARGV-element.
606
Skip the initial punctuation. */
608
nextchar = (argv[optind] + 1
609
+ (longopts != NULL && argv[optind][1] == '-'));
612
/* Decode the current option-ARGV-element. */
614
/* Check whether the ARGV-element is a long option.
616
If long_only and the ARGV-element has the form "-f", where f is
617
a valid short option, don't consider it an abbreviated form of
618
a long option that starts with f. Otherwise there would be no
619
way to give the -f short option.
621
On the other hand, if there's a long option "fubar" and
622
the ARGV-element is "-fu", do consider that an abbreviation of
623
the long option, just like "--fu", and not "-f" with arg "u".
625
This distinction seems to be the most useful approach. */
628
&& (argv[optind][1] == '-'
629
|| (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
632
const struct option *p;
633
const struct option *pfound = NULL;
639
for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
642
/* Test all long options for either exact match
643
or abbreviated matches. */
644
for (p = longopts, option_index = 0; p->name; p++, option_index++)
645
if (!strncmp (p->name, nextchar, nameend - nextchar))
647
if ((unsigned int) (nameend - nextchar)
648
== (unsigned int) strlen (p->name))
650
/* Exact match found. */
652
indfound = option_index;
656
else if (pfound == NULL)
658
/* First nonexact match found. */
660
indfound = option_index;
663
/* Second or later nonexact match found. */
670
fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
671
argv[0], argv[optind]);
672
nextchar += strlen (nextchar);
680
option_index = indfound;
684
/* Don't test has_arg with >, because some C compilers don't
685
allow it to be used on enums. */
687
optarg = nameend + 1;
692
if (argv[optind - 1][1] == '-')
695
_("%s: option `--%s' doesn't allow an argument\n"),
696
argv[0], pfound->name);
698
/* +option or -option */
700
_("%s: option `%c%s' doesn't allow an argument\n"),
701
argv[0], argv[optind - 1][0], pfound->name);
704
nextchar += strlen (nextchar);
706
optopt = pfound->val;
710
else if (pfound->has_arg == 1)
713
optarg = argv[optind++];
718
_("%s: option `%s' requires an argument\n"),
719
argv[0], argv[optind - 1]);
720
nextchar += strlen (nextchar);
721
optopt = pfound->val;
722
return optstring[0] == ':' ? ':' : '?';
725
nextchar += strlen (nextchar);
727
*longind = option_index;
730
*(pfound->flag) = pfound->val;
736
/* Can't find it as a long option. If this is not getopt_long_only,
737
or the option starts with '--' or is not a valid short
738
option, then it's an error.
739
Otherwise interpret it as a short option. */
740
if (!long_only || argv[optind][1] == '-'
741
|| my_index (optstring, *nextchar) == NULL)
745
if (argv[optind][1] == '-')
747
fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
750
/* +option or -option */
751
fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
752
argv[0], argv[optind][0], nextchar);
754
nextchar = (char *) "";
761
/* Look at and handle the next short option-character. */
764
char c = *nextchar++;
765
char *temp = my_index (optstring, c);
767
/* Increment `optind' when we start to process its last character. */
768
if (*nextchar == '\0')
771
if (temp == NULL || c == ':')
776
/* 1003.2 specifies the format of this message. */
777
fprintf (stderr, _("%s: illegal option -- %c\n"),
780
fprintf (stderr, _("%s: invalid option -- %c\n"),
786
/* Convenience. Treat POSIX -W foo same as long option --foo */
787
if (temp[0] == 'W' && temp[1] == ';')
790
const struct option *p;
791
const struct option *pfound = NULL;
797
/* This is an option that requires an argument. */
798
if (*nextchar != '\0')
801
/* If we end this ARGV-element by taking the rest as an arg,
802
we must advance to the next element now. */
805
else if (optind == argc)
809
/* 1003.2 specifies the format of this message. */
810
fprintf (stderr, _("%s: option requires an argument -- %c\n"),
814
if (optstring[0] == ':')
821
/* We already incremented `optind' once;
822
increment it again when taking next ARGV-elt as argument. */
823
optarg = argv[optind++];
825
/* optarg is now the argument, see if it's in the
826
table of longopts. */
828
for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
831
/* Test all long options for either exact match
832
or abbreviated matches. */
833
for (p = longopts, option_index = 0; p->name; p++, option_index++)
834
if (!strncmp (p->name, nextchar, nameend - nextchar))
836
if ((unsigned int) (nameend - nextchar) == strlen (p->name))
838
/* Exact match found. */
840
indfound = option_index;
844
else if (pfound == NULL)
846
/* First nonexact match found. */
848
indfound = option_index;
851
/* Second or later nonexact match found. */
857
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
858
argv[0], argv[optind]);
859
nextchar += strlen (nextchar);
865
option_index = indfound;
868
/* Don't test has_arg with >, because some C compilers don't
869
allow it to be used on enums. */
871
optarg = nameend + 1;
875
fprintf (stderr, _("\
876
%s: option `-W %s' doesn't allow an argument\n"),
877
argv[0], pfound->name);
879
nextchar += strlen (nextchar);
883
else if (pfound->has_arg == 1)
886
optarg = argv[optind++];
891
_("%s: option `%s' requires an argument\n"),
892
argv[0], argv[optind - 1]);
893
nextchar += strlen (nextchar);
894
return optstring[0] == ':' ? ':' : '?';
897
nextchar += strlen (nextchar);
899
*longind = option_index;
902
*(pfound->flag) = pfound->val;
908
return 'W'; /* Let the application handle it. */
914
/* This is an option that accepts an argument optionally. */
915
if (*nextchar != '\0')
926
/* This is an option that requires an argument. */
927
if (*nextchar != '\0')
930
/* If we end this ARGV-element by taking the rest as an arg,
931
we must advance to the next element now. */
934
else if (optind == argc)
938
/* 1003.2 specifies the format of this message. */
940
_("%s: option requires an argument -- %c\n"),
944
if (optstring[0] == ':')
950
/* We already incremented `optind' once;
951
increment it again when taking next ARGV-elt as argument. */
952
optarg = argv[optind++];
961
getopt (argc, argv, optstring)
964
const char *optstring;
966
return _getopt_internal (argc, argv, optstring,
967
(const struct option *) 0,
973
getopt_long (argc, argv, options, long_options, opt_index)
977
const struct option *long_options;
980
return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
983
/* Like getopt_long, but '-' as well as '--' can indicate a long option.
984
If an option that starts with '-' (not '--') doesn't match a long option,
985
but does match a short option, it is parsed as a short option
989
getopt_long_only (argc, argv, options, long_options, opt_index)
993
const struct option *long_options;
996
return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
999
#endif /* Not ELIDE_CODE. */
1003
/* Compile with -DTEST to make an executable for use in testing
1004
the above definition of `getopt'. */
1012
int digit_optind = 0;
1016
int this_option_optind = optind ? optind : 1;
1018
c = getopt (argc, argv, "abc:d:0123456789");
1034
if (digit_optind != 0 && digit_optind != this_option_optind)
1035
printf ("digits occur in two different argv-elements.\n");
1036
digit_optind = this_option_optind;
1037
printf ("option %c\n", c);
1041
printf ("option a\n");
1045
printf ("option b\n");
1049
printf ("option c with value `%s'\n", optarg);
1056
printf ("?? getopt returned character code 0%o ??\n", c);
1062
printf ("non-option ARGV-elements: ");
1063
while (optind < argc)
1064
printf ("%s ", argv[optind++]);