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
6 Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98
7 Free Software Foundation, Inc.
9 The GNU C Library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Library General Public License as
11 published by the Free Software Foundation; either version 2 of the
12 License, or (at your option) any later version.
14 The GNU C Library 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 GNU
17 Library General Public License for more details.
19 You should have received a copy of the GNU Library General Public
20 License along with the GNU C Library; see the file COPYING.LIB. If not,
21 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
24 /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
25 Ditto for AIX 3.2 and <stdlib.h>. */
34 #if !defined __STDC__ || !__STDC__
35 /* This is a separate conditional since some stdc systems
36 reject `defined (const)'. */
44 /* Comment out all this code if we are using the GNU C Library, and are not
45 actually compiling the library itself. This code is part of the GNU C
46 Library, but also included in many other GNU distributions. Compiling
47 and linking in this code is a waste when using the GNU C library
48 (especially if it is a shared library). Rather than having every GNU
49 program understand `configure --with-gnu-libc' and omit the object files,
50 it is simpler to just do this in the source for each such file. */
52 #define GETOPT_INTERFACE_VERSION 2
53 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
54 #include <gnu-versions.h>
55 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
63 /* This needs to come after some library #include
64 to get __GNU_LIBRARY__ defined. */
65 #ifdef __GNU_LIBRARY__
66 /* Don't include stdlib.h for non-GNU C libraries because some of them
67 contain conflicting prototypes for getopt. */
70 #endif /* GNU C library. */
80 /* This is for other GNU distributions with internationalized messages.
81 When compiling libc, the _ macro is predefined. */
84 # define _(msgid) gettext (msgid)
86 # define _(msgid) (msgid)
90 /* This version of `getopt' appears to the caller like standard Unix `getopt'
91 but it behaves differently for the user, since it allows the user
92 to intersperse the options with the other arguments.
94 As `getopt' works, it permutes the elements of ARGV so that,
95 when it is done, all the options precede everything else. Thus
96 all application programs are extended to handle flexible argument order.
98 Setting the environment variable POSIXLY_CORRECT disables permutation.
99 Then the behavior is completely standard.
101 GNU application programs can use a third alternative mode in which
102 they can distinguish the relative order of options and other arguments. */
106 /* For communication from `getopt' to the caller.
107 When `getopt' finds an option that takes an argument,
108 the argument value is returned here.
109 Also, when `ordering' is RETURN_IN_ORDER,
110 each non-option ARGV-element is returned here. */
114 /* Index in ARGV of the next element to be scanned.
115 This is used for communication to and from the caller
116 and for communication between successive calls to `getopt'.
118 On entry to `getopt', zero means this is the first call; initialize.
120 When `getopt' returns -1, this is the index of the first of the
121 non-option elements that the caller should itself scan.
123 Otherwise, `optind' communicates from one call to the next
124 how much of ARGV has been scanned so far. */
126 /* 1003.2 says this must be 1 before any call. */
129 /* Formerly, initialization of getopt depended on optind==0, which
130 causes problems with re-calling getopt as programs generally don't
133 int __getopt_initialized
= 0;
135 /* The next char to be scanned in the option-element
136 in which the last option character we returned was found.
137 This allows us to pick up the scan where we left off.
139 If this is zero, or a null string, it means resume the scan
140 by advancing to the next ARGV-element. */
142 static char *nextchar
;
144 /* Callers store zero here to inhibit the error message
145 for unrecognized options. */
149 /* Set to an option character which was unrecognized.
150 This must be initialized on some systems to avoid linking in the
151 system's own getopt implementation. */
155 /* Describe how to deal with options that follow non-option ARGV-elements.
157 If the caller did not specify anything,
158 the default is REQUIRE_ORDER if the environment variable
159 POSIXLY_CORRECT is defined, PERMUTE otherwise.
161 REQUIRE_ORDER means don't recognize them as options;
162 stop option processing when the first non-option is seen.
163 This is what Unix does.
164 This mode of operation is selected by either setting the environment
165 variable POSIXLY_CORRECT, or using `+' as the first character
166 of the list of option characters.
168 PERMUTE is the default. We permute the contents of ARGV as we scan,
169 so that eventually all the non-options are at the end. This allows options
170 to be given in any order, even with programs that were not written to
173 RETURN_IN_ORDER is an option available to programs that were written
174 to expect options and other ARGV-elements in any order and that care about
175 the ordering of the two. We describe each non-option ARGV-element
176 as if it were the argument of an option with character code 1.
177 Using `-' as the first character of the list of option characters
178 selects this mode of operation.
180 The special argument `--' forces an end of option-scanning regardless
181 of the value of `ordering'. In the case of RETURN_IN_ORDER, only
182 `--' can cause `getopt' to return -1 with `optind' != ARGC. */
186 REQUIRE_ORDER
, PERMUTE
, RETURN_IN_ORDER
189 /* Value of POSIXLY_CORRECT environment variable. */
190 static char *posixly_correct
;
192 #ifdef __GNU_LIBRARY__
193 /* We want to avoid inclusion of string.h with non-GNU libraries
194 because there are many ways it can cause trouble.
195 On some systems, it contains special magic macros that don't work
198 #define my_index strchr
201 /* Avoid depending on library functions or files
202 whose names are inconsistent. */
220 /* If using GCC, we can safely declare strlen this way.
221 If not using GCC, it is ok not to declare it. */
223 /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
224 That was relevant to code that was here before. */
225 #if !defined __STDC__ || !__STDC__
226 /* gcc with -traditional declares the built-in strlen to return int,
227 and has done so at least since version 2.4.5. -- rms. */
228 extern int strlen (const char *);
229 #endif /* not __STDC__ */
230 #endif /* __GNUC__ */
232 #endif /* not __GNU_LIBRARY__ */
234 /* Handle permutation of arguments. */
236 /* Describe the part of ARGV that contains non-options that have
237 been skipped. `first_nonopt' is the index in ARGV of the first of them;
238 `last_nonopt' is the index after the last of them. */
240 static int first_nonopt
;
241 static int last_nonopt
;
244 /* Bash 2.0 gives us an environment variable containing flags
245 indicating ARGV elements that should not be considered arguments. */
247 /* Defined in getopt_init.c */
248 extern char *__getopt_nonoption_flags
;
250 static int nonoption_flags_max_len
;
251 static int nonoption_flags_len
;
253 static int original_argc
;
254 static char *const *original_argv
;
256 /* Make sure the environment variable bash 2.0 puts in the environment
257 is valid for the getopt call we must make sure that the ARGV passed
258 to getopt is that one passed to the process. */
260 __attribute__ ((unused
))
261 store_args_and_env (int argc
, char *const *argv
)
263 /* XXX This is no good solution. We should rather copy the args so
264 that we can compare them later. But we must not use malloc(3). */
265 original_argc
= argc
;
266 original_argv
= argv
;
268 # ifdef text_set_element
269 text_set_element (__libc_subinit
, store_args_and_env
);
270 # endif /* text_set_element */
272 # define SWAP_FLAGS(ch1, ch2) \
273 if (nonoption_flags_len > 0) \
275 char __tmp = __getopt_nonoption_flags[ch1]; \
276 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
277 __getopt_nonoption_flags[ch2] = __tmp; \
280 # define SWAP_FLAGS(ch1, ch2)
283 /* Exchange two adjacent subsequences of ARGV.
284 One subsequence is elements [first_nonopt,last_nonopt)
285 which contains all the non-options that have been skipped so far.
286 The other is elements [last_nonopt,optind), which contains all
287 the options processed since those non-options were skipped.
289 `first_nonopt' and `last_nonopt' are relocated so that they describe
290 the new indices of the non-options in ARGV after they are moved. */
292 #if defined __STDC__ && __STDC__
293 static void exchange (char **);
300 int bottom
= first_nonopt
;
301 int middle
= last_nonopt
;
305 /* Exchange the shorter segment with the far end of the longer segment.
306 That puts the shorter segment into the right place.
307 It leaves the longer segment in the right place overall,
308 but it consists of two parts that need to be swapped next. */
311 /* First make sure the handling of the `__getopt_nonoption_flags'
312 string can work normally. Our top argument must be in the range
314 if (nonoption_flags_len
> 0 && top
>= nonoption_flags_max_len
)
316 /* We must extend the array. The user plays games with us and
317 presents new arguments. */
318 char *new_str
= malloc (top
+ 1);
320 nonoption_flags_len
= nonoption_flags_max_len
= 0;
323 memset (__mempcpy (new_str
, __getopt_nonoption_flags
,
324 nonoption_flags_max_len
),
325 '\0', top
+ 1 - nonoption_flags_max_len
);
326 nonoption_flags_max_len
= top
+ 1;
327 __getopt_nonoption_flags
= new_str
;
332 while (top
> middle
&& middle
> bottom
)
334 if (top
- middle
> middle
- bottom
)
336 /* Bottom segment is the short one. */
337 int len
= middle
- bottom
;
340 /* Swap it with the top part of the top segment. */
341 for (i
= 0; i
< len
; i
++)
343 tem
= argv
[bottom
+ i
];
344 argv
[bottom
+ i
] = argv
[top
- (middle
- bottom
) + i
];
345 argv
[top
- (middle
- bottom
) + i
] = tem
;
346 SWAP_FLAGS (bottom
+ i
, top
- (middle
- bottom
) + i
);
348 /* Exclude the moved bottom segment from further swapping. */
353 /* Top segment is the short one. */
354 int len
= top
- middle
;
357 /* Swap it with the bottom part of the bottom segment. */
358 for (i
= 0; i
< len
; i
++)
360 tem
= argv
[bottom
+ i
];
361 argv
[bottom
+ i
] = argv
[middle
+ i
];
362 argv
[middle
+ i
] = tem
;
363 SWAP_FLAGS (bottom
+ i
, middle
+ i
);
365 /* Exclude the moved top segment from further swapping. */
370 /* Update records for the slots the non-options now occupy. */
372 first_nonopt
+= (optind
- last_nonopt
);
373 last_nonopt
= optind
;
376 /* Initialize the internal data when the first call is made. */
378 #if defined __STDC__ && __STDC__
379 static const char *_getopt_initialize (int, char *const *, const char *);
382 _getopt_initialize (argc
, argv
, optstring
)
385 const char *optstring
;
387 /* Start processing options with ARGV-element 1 (since ARGV-element 0
388 is the program name); the sequence of previously skipped
389 non-option ARGV-elements is empty. */
391 first_nonopt
= last_nonopt
= optind
;
395 posixly_correct
= getenv ("POSIXLY_CORRECT");
397 /* Determine how to handle the ordering of options and nonoptions. */
399 if (optstring
[0] == '-')
401 ordering
= RETURN_IN_ORDER
;
404 else if (optstring
[0] == '+')
406 ordering
= REQUIRE_ORDER
;
409 else if (posixly_correct
!= NULL
)
410 ordering
= REQUIRE_ORDER
;
415 if (posixly_correct
== NULL
416 && argc
== original_argc
&& argv
== original_argv
)
418 if (nonoption_flags_max_len
== 0)
420 if (__getopt_nonoption_flags
== NULL
421 || __getopt_nonoption_flags
[0] == '\0')
422 nonoption_flags_max_len
= -1;
425 const char *orig_str
= __getopt_nonoption_flags
;
426 int len
= nonoption_flags_max_len
= strlen (orig_str
);
427 if (nonoption_flags_max_len
< argc
)
428 nonoption_flags_max_len
= argc
;
429 __getopt_nonoption_flags
=
430 (char *) malloc (nonoption_flags_max_len
);
431 if (__getopt_nonoption_flags
== NULL
)
432 nonoption_flags_max_len
= -1;
434 memset (__mempcpy (__getopt_nonoption_flags
, orig_str
, len
),
435 '\0', nonoption_flags_max_len
- len
);
438 nonoption_flags_len
= nonoption_flags_max_len
;
441 nonoption_flags_len
= 0;
447 /* Scan elements of ARGV (whose length is ARGC) for option characters
450 If an element of ARGV starts with '-', and is not exactly "-" or "--",
451 then it is an option element. The characters of this element
452 (aside from the initial '-') are option characters. If `getopt'
453 is called repeatedly, it returns successively each of the option characters
454 from each of the option elements.
456 If `getopt' finds another option character, it returns that character,
457 updating `optind' and `nextchar' so that the next call to `getopt' can
458 resume the scan with the following option character or ARGV-element.
460 If there are no more option characters, `getopt' returns -1.
461 Then `optind' is the index in ARGV of the first ARGV-element
462 that is not an option. (The ARGV-elements have been permuted
463 so that those that are not options now come last.)
465 OPTSTRING is a string containing the legitimate option characters.
466 If an option character is seen that is not listed in OPTSTRING,
467 return '?' after printing an error message. If you set `opterr' to
468 zero, the error message is suppressed but we still return '?'.
470 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
471 so the following text in the same ARGV-element, or the text of the following
472 ARGV-element, is returned in `optarg'. Two colons mean an option that
473 wants an optional arg; if there is text in the current ARGV-element,
474 it is returned in `optarg', otherwise `optarg' is set to zero.
476 If OPTSTRING starts with `-' or `+', it requests different methods of
477 handling the non-option ARGV-elements.
478 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
480 Long-named options begin with `--' instead of `-'.
481 Their names may be abbreviated as long as the abbreviation is unique
482 or is an exact match for some defined option. If they have an
483 argument, it follows the option name in the same ARGV-element, separated
484 from the option name by a `=', or else the in next ARGV-element.
485 When `getopt' finds a long-named option, it returns 0 if that option's
486 `flag' field is nonzero, the value of the option's `val' field
487 if the `flag' field is zero.
489 The elements of ARGV aren't really const, because we permute them.
490 But we pretend they're const in the prototype to be compatible
493 LONGOPTS is a vector of `struct option' terminated by an
494 element containing a name which is zero.
496 LONGIND returns the index in LONGOPT of the long-named option found.
497 It is only valid when a long-named option has been found by the most
500 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
501 long-named options. */
504 _getopt_internal (argc
, argv
, optstring
, longopts
, longind
, long_only
)
507 const char *optstring
;
508 const struct option
*longopts
;
514 if (optind
== 0 || !__getopt_initialized
)
517 optind
= 1; /* Don't scan ARGV[0], the program name. */
518 optstring
= _getopt_initialize (argc
, argv
, optstring
);
519 __getopt_initialized
= 1;
522 /* Test whether ARGV[optind] points to a non-option argument.
523 Either it does not have option syntax, or there is an environment flag
524 from the shell indicating it is not an option. The later information
525 is only used when the used in the GNU libc. */
527 #define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
528 || (optind < nonoption_flags_len \
529 && __getopt_nonoption_flags[optind] == '1'))
531 #define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
534 if (nextchar
== NULL
|| *nextchar
== '\0')
536 /* Advance to the next ARGV-element. */
538 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
539 moved back by the user (who may also have changed the arguments). */
540 if (last_nonopt
> optind
)
541 last_nonopt
= optind
;
542 if (first_nonopt
> optind
)
543 first_nonopt
= optind
;
545 if (ordering
== PERMUTE
)
547 /* If we have just processed some options following some non-options,
548 exchange them so that the options come first. */
550 if (first_nonopt
!= last_nonopt
&& last_nonopt
!= optind
)
551 exchange ((char **) argv
);
552 else if (last_nonopt
!= optind
)
553 first_nonopt
= optind
;
555 /* Skip any additional non-options
556 and extend the range of non-options previously skipped. */
558 while (optind
< argc
&& NONOPTION_P
)
560 last_nonopt
= optind
;
563 /* The special ARGV-element `--' means premature end of options.
564 Skip it like a null option,
565 then exchange with previous non-options as if it were an option,
566 then skip everything else like a non-option. */
568 if (optind
!= argc
&& !strcmp (argv
[optind
], "--"))
572 if (first_nonopt
!= last_nonopt
&& last_nonopt
!= optind
)
573 exchange ((char **) argv
);
574 else if (first_nonopt
== last_nonopt
)
575 first_nonopt
= optind
;
581 /* If we have done all the ARGV-elements, stop the scan
582 and back over any non-options that we skipped and permuted. */
586 /* Set the next-arg-index to point at the non-options
587 that we previously skipped, so the caller will digest them. */
588 if (first_nonopt
!= last_nonopt
)
589 optind
= first_nonopt
;
593 /* If we have come to a non-option and did not permute it,
594 either stop the scan or describe it to the caller and pass it by. */
598 if (ordering
== REQUIRE_ORDER
)
600 optarg
= argv
[optind
++];
604 /* We have found another option-ARGV-element.
605 Skip the initial punctuation. */
607 nextchar
= (argv
[optind
] + 1
608 + (longopts
!= NULL
&& argv
[optind
][1] == '-'));
611 /* Decode the current option-ARGV-element. */
613 /* Check whether the ARGV-element is a long option.
615 If long_only and the ARGV-element has the form "-f", where f is
616 a valid short option, don't consider it an abbreviated form of
617 a long option that starts with f. Otherwise there would be no
618 way to give the -f short option.
620 On the other hand, if there's a long option "fubar" and
621 the ARGV-element is "-fu", do consider that an abbreviation of
622 the long option, just like "--fu", and not "-f" with arg "u".
624 This distinction seems to be the most useful approach. */
627 && (argv
[optind
][1] == '-'
628 || (long_only
&& (argv
[optind
][2] || !my_index (optstring
, argv
[optind
][1])))))
631 const struct option
*p
;
632 const struct option
*pfound
= NULL
;
638 for (nameend
= nextchar
; *nameend
&& *nameend
!= '='; nameend
++)
641 /* Test all long options for either exact match
642 or abbreviated matches. */
643 for (p
= longopts
, option_index
= 0; p
->name
; p
++, option_index
++)
644 if (!strncmp (p
->name
, nextchar
, nameend
- nextchar
))
646 if ((unsigned int) (nameend
- nextchar
)
647 == (unsigned int) strlen (p
->name
))
649 /* Exact match found. */
651 indfound
= option_index
;
655 else if (pfound
== NULL
)
657 /* First nonexact match found. */
659 indfound
= option_index
;
662 /* Second or later nonexact match found. */
669 fprintf (stderr
, _("%s: option `%s' is ambiguous\n"),
670 argv
[0], argv
[optind
]);
671 nextchar
+= strlen (nextchar
);
679 option_index
= indfound
;
683 /* Don't test has_arg with >, because some C compilers don't
684 allow it to be used on enums. */
686 optarg
= nameend
+ 1;
690 if (argv
[optind
- 1][1] == '-')
693 _("%s: option `--%s' doesn't allow an argument\n"),
694 argv
[0], pfound
->name
);
696 /* +option or -option */
698 _("%s: option `%c%s' doesn't allow an argument\n"),
699 argv
[0], argv
[optind
- 1][0], pfound
->name
);
701 nextchar
+= strlen (nextchar
);
703 optopt
= pfound
->val
;
707 else if (pfound
->has_arg
== 1)
710 optarg
= argv
[optind
++];
715 _("%s: option `%s' requires an argument\n"),
716 argv
[0], argv
[optind
- 1]);
717 nextchar
+= strlen (nextchar
);
718 optopt
= pfound
->val
;
719 return optstring
[0] == ':' ? ':' : '?';
722 nextchar
+= strlen (nextchar
);
724 *longind
= option_index
;
727 *(pfound
->flag
) = pfound
->val
;
733 /* Can't find it as a long option. If this is not getopt_long_only,
734 or the option starts with '--' or is not a valid short
735 option, then it's an error.
736 Otherwise interpret it as a short option. */
737 if (!long_only
|| argv
[optind
][1] == '-'
738 || my_index (optstring
, *nextchar
) == NULL
)
742 if (argv
[optind
][1] == '-')
744 fprintf (stderr
, _("%s: unrecognized option `--%s'\n"),
747 /* +option or -option */
748 fprintf (stderr
, _("%s: unrecognized option `%c%s'\n"),
749 argv
[0], argv
[optind
][0], nextchar
);
751 nextchar
= (char *) "";
758 /* Look at and handle the next short option-character. */
761 char c
= *nextchar
++;
762 char *temp
= my_index (optstring
, c
);
764 /* Increment `optind' when we start to process its last character. */
765 if (*nextchar
== '\0')
768 if (temp
== NULL
|| c
== ':')
773 /* 1003.2 specifies the format of this message. */
774 fprintf (stderr
, _("%s: illegal option -- %c\n"),
777 fprintf (stderr
, _("%s: invalid option -- %c\n"),
783 /* Convenience. Treat POSIX -W foo same as long option --foo */
784 if (temp
[0] == 'W' && temp
[1] == ';')
787 const struct option
*p
;
788 const struct option
*pfound
= NULL
;
794 /* This is an option that requires an argument. */
795 if (*nextchar
!= '\0')
798 /* If we end this ARGV-element by taking the rest as an arg,
799 we must advance to the next element now. */
802 else if (optind
== argc
)
806 /* 1003.2 specifies the format of this message. */
807 fprintf (stderr
, _("%s: option requires an argument -- %c\n"),
811 if (optstring
[0] == ':')
818 /* We already incremented `optind' once;
819 increment it again when taking next ARGV-elt as argument. */
820 optarg
= argv
[optind
++];
822 /* optarg is now the argument, see if it's in the
823 table of longopts. */
825 for (nextchar
= nameend
= optarg
; *nameend
&& *nameend
!= '='; nameend
++)
828 /* Test all long options for either exact match
829 or abbreviated matches. */
830 for (p
= longopts
, option_index
= 0; p
->name
; p
++, option_index
++)
831 if (!strncmp (p
->name
, nextchar
, nameend
- nextchar
))
833 if ((unsigned int) (nameend
- nextchar
) == strlen (p
->name
))
835 /* Exact match found. */
837 indfound
= option_index
;
841 else if (pfound
== NULL
)
843 /* First nonexact match found. */
845 indfound
= option_index
;
848 /* Second or later nonexact match found. */
854 fprintf (stderr
, _("%s: option `-W %s' is ambiguous\n"),
855 argv
[0], argv
[optind
]);
856 nextchar
+= strlen (nextchar
);
862 option_index
= indfound
;
865 /* Don't test has_arg with >, because some C compilers don't
866 allow it to be used on enums. */
868 optarg
= nameend
+ 1;
872 fprintf (stderr
, _("\
873 %s: option `-W %s' doesn't allow an argument\n"),
874 argv
[0], pfound
->name
);
876 nextchar
+= strlen (nextchar
);
880 else if (pfound
->has_arg
== 1)
883 optarg
= argv
[optind
++];
888 _("%s: option `%s' requires an argument\n"),
889 argv
[0], argv
[optind
- 1]);
890 nextchar
+= strlen (nextchar
);
891 return optstring
[0] == ':' ? ':' : '?';
894 nextchar
+= strlen (nextchar
);
896 *longind
= option_index
;
899 *(pfound
->flag
) = pfound
->val
;
905 return 'W'; /* Let the application handle it. */
911 /* This is an option that accepts an argument optionally. */
912 if (*nextchar
!= '\0')
923 /* This is an option that requires an argument. */
924 if (*nextchar
!= '\0')
927 /* If we end this ARGV-element by taking the rest as an arg,
928 we must advance to the next element now. */
931 else if (optind
== argc
)
935 /* 1003.2 specifies the format of this message. */
937 _("%s: option requires an argument -- %c\n"),
941 if (optstring
[0] == ':')
947 /* We already incremented `optind' once;
948 increment it again when taking next ARGV-elt as argument. */
949 optarg
= argv
[optind
++];
958 getopt (argc
, argv
, optstring
)
961 const char *optstring
;
963 return _getopt_internal (argc
, argv
, optstring
,
964 (const struct option
*) 0,
969 #endif /* Not ELIDE_CODE. */
973 /* Compile with -DTEST to make an executable for use in testing
974 the above definition of `getopt'. */
982 int digit_optind
= 0;
986 int this_option_optind
= optind
? optind
: 1;
988 c
= getopt (argc
, argv
, "abc:d:0123456789");
1004 if (digit_optind
!= 0 && digit_optind
!= this_option_optind
)
1005 printf ("digits occur in two different argv-elements.\n");
1006 digit_optind
= this_option_optind
;
1007 printf ("option %c\n", c
);
1011 printf ("option a\n");
1015 printf ("option b\n");
1019 printf ("option c with value `%s'\n", optarg
);
1026 printf ("?? getopt returned character code 0%o ??\n", c
);
1032 printf ("non-option ARGV-elements: ");
1033 while (optind
< argc
)
1034 printf ("%s ", argv
[optind
++]);