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49fb5799 | 1 | /* Getopt for GNU. |
554ed1ff RS |
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 | |
49fb5799 | 6 | Free Software Foundation, Inc. |
554ed1ff | 7 | This file is part of the GNU C Library. |
49fb5799 | 8 | |
554ed1ff RS |
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. | |
89752145 PE |
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 | ||
554ed1ff RS |
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, | |
4ee9629e | 21 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
49fb5799 PE |
22 | \f |
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 | |
1823194b | 26 | # define _NO_PROTO |
49fb5799 PE |
27 | #endif |
28 | ||
29 | #ifdef HAVE_CONFIG_H | |
1823194b | 30 | # include <config.h> |
554ed1ff RS |
31 | #endif |
32 | ||
33 | #if !defined __STDC__ || !__STDC__ | |
49fb5799 PE |
34 | /* This is a separate conditional since some stdc systems |
35 | reject `defined (const)'. */ | |
554ed1ff RS |
36 | # ifndef const |
37 | # define const | |
1823194b | 38 | # endif |
49fb5799 PE |
39 | #endif |
40 | ||
41 | #include <stdio.h> | |
42 | ||
43 | /* Comment out all this code if we are using the GNU C Library, and are not | |
44 | actually compiling the library itself. This code is part of the GNU C | |
45 | Library, but also included in many other GNU distributions. Compiling | |
46 | and linking in this code is a waste when using the GNU C library | |
47 | (especially if it is a shared library). Rather than having every GNU | |
48 | program understand `configure --with-gnu-libc' and omit the object files, | |
49 | it is simpler to just do this in the source for each such file. */ | |
50 | ||
51 | #define GETOPT_INTERFACE_VERSION 2 | |
06bd27fd | 52 | #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 |
1823194b UD |
53 | # include <gnu-versions.h> |
54 | # if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION | |
55 | # define ELIDE_CODE | |
56 | # endif | |
49fb5799 PE |
57 | #endif |
58 | ||
59 | #ifndef ELIDE_CODE | |
60 | ||
61 | ||
62 | /* This needs to come after some library #include | |
63 | to get __GNU_LIBRARY__ defined. */ | |
64 | #ifdef __GNU_LIBRARY__ | |
65 | /* Don't include stdlib.h for non-GNU C libraries because some of them | |
66 | contain conflicting prototypes for getopt. */ | |
1823194b UD |
67 | # include <stdlib.h> |
68 | # include <unistd.h> | |
49fb5799 PE |
69 | #endif /* GNU C library. */ |
70 | ||
71 | #ifdef VMS | |
1823194b UD |
72 | # include <unixlib.h> |
73 | # if HAVE_STRING_H - 0 | |
74 | # include <string.h> | |
75 | # endif | |
49fb5799 PE |
76 | #endif |
77 | ||
eca79530 RS |
78 | #if HAVE_LIBINTL_H |
79 | # include <libintl.h> | |
80 | #endif /* HAVE_LIBINTL_H */ | |
81 | ||
d262de61 | 82 | #if 0 |
4fbd6766 BK |
83 | # ifdef _LIBC |
84 | # include <libintl.h> | |
85 | # else /* not #ifdef _LIBC */ | |
554ed1ff | 86 | /* This is for other GNU distributions with internationalized messages. */ |
4fbd6766 BK |
87 | # include "gettext.h" |
88 | # endif /* end #ifdef _LIBC */ | |
89 | #endif /* end #if 0 */ | |
90 | ||
eca79530 | 91 | #if HAVE_LIBINTL_H |
4fbd6766 BK |
92 | /* Should I include libintl.h here as in regex.c ? */ |
93 | # define _(msgid) gettext (msgid) | |
eca79530 | 94 | #else /* not #if HAVE_LIBINTL_H */ |
4fbd6766 | 95 | # define _(msgid) (msgid) |
eca79530 | 96 | #endif /* end #if HAVE_LIBINTL_H */ |
554ed1ff RS |
97 | |
98 | #if defined _LIBC && defined USE_IN_LIBIO | |
99 | # include <wchar.h> | |
100 | #endif | |
101 | ||
102 | #ifndef attribute_hidden | |
103 | # define attribute_hidden | |
49fb5799 PE |
104 | #endif |
105 | ||
106 | /* This version of `getopt' appears to the caller like standard Unix `getopt' | |
107 | but it behaves differently for the user, since it allows the user | |
108 | to intersperse the options with the other arguments. | |
109 | ||
110 | As `getopt' works, it permutes the elements of ARGV so that, | |
111 | when it is done, all the options precede everything else. Thus | |
112 | all application programs are extended to handle flexible argument order. | |
113 | ||
114 | Setting the environment variable POSIXLY_CORRECT disables permutation. | |
115 | Then the behavior is completely standard. | |
116 | ||
117 | GNU application programs can use a third alternative mode in which | |
118 | they can distinguish the relative order of options and other arguments. */ | |
119 | ||
120 | #include "getopt.h" | |
121 | ||
122 | /* For communication from `getopt' to the caller. | |
123 | When `getopt' finds an option that takes an argument, | |
124 | the argument value is returned here. | |
125 | Also, when `ordering' is RETURN_IN_ORDER, | |
126 | each non-option ARGV-element is returned here. */ | |
127 | ||
4ee9629e | 128 | char *optarg; |
49fb5799 PE |
129 | |
130 | /* Index in ARGV of the next element to be scanned. | |
131 | This is used for communication to and from the caller | |
132 | and for communication between successive calls to `getopt'. | |
133 | ||
134 | On entry to `getopt', zero means this is the first call; initialize. | |
135 | ||
136 | When `getopt' returns -1, this is the index of the first of the | |
137 | non-option elements that the caller should itself scan. | |
138 | ||
139 | Otherwise, `optind' communicates from one call to the next | |
140 | how much of ARGV has been scanned so far. */ | |
141 | ||
142 | /* 1003.2 says this must be 1 before any call. */ | |
143 | int optind = 1; | |
144 | ||
145 | /* Formerly, initialization of getopt depended on optind==0, which | |
146 | causes problems with re-calling getopt as programs generally don't | |
147 | know that. */ | |
148 | ||
554ed1ff | 149 | int __getopt_initialized attribute_hidden; |
49fb5799 PE |
150 | |
151 | /* The next char to be scanned in the option-element | |
152 | in which the last option character we returned was found. | |
153 | This allows us to pick up the scan where we left off. | |
154 | ||
155 | If this is zero, or a null string, it means resume the scan | |
156 | by advancing to the next ARGV-element. */ | |
157 | ||
158 | static char *nextchar; | |
159 | ||
160 | /* Callers store zero here to inhibit the error message | |
161 | for unrecognized options. */ | |
162 | ||
163 | int opterr = 1; | |
164 | ||
165 | /* Set to an option character which was unrecognized. | |
166 | This must be initialized on some systems to avoid linking in the | |
167 | system's own getopt implementation. */ | |
168 | ||
169 | int optopt = '?'; | |
170 | ||
171 | /* Describe how to deal with options that follow non-option ARGV-elements. | |
172 | ||
173 | If the caller did not specify anything, | |
174 | the default is REQUIRE_ORDER if the environment variable | |
175 | POSIXLY_CORRECT is defined, PERMUTE otherwise. | |
176 | ||
177 | REQUIRE_ORDER means don't recognize them as options; | |
178 | stop option processing when the first non-option is seen. | |
179 | This is what Unix does. | |
180 | This mode of operation is selected by either setting the environment | |
181 | variable POSIXLY_CORRECT, or using `+' as the first character | |
182 | of the list of option characters. | |
183 | ||
184 | PERMUTE is the default. We permute the contents of ARGV as we scan, | |
185 | so that eventually all the non-options are at the end. This allows options | |
186 | to be given in any order, even with programs that were not written to | |
187 | expect this. | |
188 | ||
189 | RETURN_IN_ORDER is an option available to programs that were written | |
190 | to expect options and other ARGV-elements in any order and that care about | |
191 | the ordering of the two. We describe each non-option ARGV-element | |
192 | as if it were the argument of an option with character code 1. | |
193 | Using `-' as the first character of the list of option characters | |
194 | selects this mode of operation. | |
195 | ||
196 | The special argument `--' forces an end of option-scanning regardless | |
197 | of the value of `ordering'. In the case of RETURN_IN_ORDER, only | |
198 | `--' can cause `getopt' to return -1 with `optind' != ARGC. */ | |
199 | ||
200 | static enum | |
201 | { | |
202 | REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER | |
203 | } ordering; | |
204 | ||
205 | /* Value of POSIXLY_CORRECT environment variable. */ | |
206 | static char *posixly_correct; | |
207 | \f | |
208 | #ifdef __GNU_LIBRARY__ | |
209 | /* We want to avoid inclusion of string.h with non-GNU libraries | |
210 | because there are many ways it can cause trouble. | |
211 | On some systems, it contains special magic macros that don't work | |
212 | in GCC. */ | |
1823194b UD |
213 | # include <string.h> |
214 | # define my_index strchr | |
49fb5799 PE |
215 | #else |
216 | ||
152b9de4 UD |
217 | # if HAVE_STRING_H |
218 | # include <string.h> | |
219 | # else | |
220 | # include <strings.h> | |
221 | # endif | |
222 | ||
49fb5799 PE |
223 | /* Avoid depending on library functions or files |
224 | whose names are inconsistent. */ | |
225 | ||
1823194b UD |
226 | #ifndef getenv |
227 | extern char *getenv (); | |
228 | #endif | |
49fb5799 PE |
229 | |
230 | static char * | |
231 | my_index (str, chr) | |
232 | const char *str; | |
233 | int chr; | |
234 | { | |
235 | while (*str) | |
236 | { | |
237 | if (*str == chr) | |
238 | return (char *) str; | |
239 | str++; | |
240 | } | |
241 | return 0; | |
242 | } | |
243 | ||
244 | /* If using GCC, we can safely declare strlen this way. | |
245 | If not using GCC, it is ok not to declare it. */ | |
246 | #ifdef __GNUC__ | |
247 | /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h. | |
248 | That was relevant to code that was here before. */ | |
1823194b | 249 | # if (!defined __STDC__ || !__STDC__) && !defined strlen |
49fb5799 PE |
250 | /* gcc with -traditional declares the built-in strlen to return int, |
251 | and has done so at least since version 2.4.5. -- rms. */ | |
252 | extern int strlen (const char *); | |
1823194b | 253 | # endif /* not __STDC__ */ |
49fb5799 PE |
254 | #endif /* __GNUC__ */ |
255 | ||
256 | #endif /* not __GNU_LIBRARY__ */ | |
257 | \f | |
258 | /* Handle permutation of arguments. */ | |
259 | ||
260 | /* Describe the part of ARGV that contains non-options that have | |
261 | been skipped. `first_nonopt' is the index in ARGV of the first of them; | |
262 | `last_nonopt' is the index after the last of them. */ | |
263 | ||
264 | static int first_nonopt; | |
265 | static int last_nonopt; | |
266 | ||
267 | #ifdef _LIBC | |
554ed1ff RS |
268 | /* Stored original parameters. |
269 | XXX This is no good solution. We should rather copy the args so | |
270 | that we can compare them later. But we must not use malloc(3). */ | |
271 | extern int __libc_argc; | |
272 | extern char **__libc_argv; | |
273 | ||
49fb5799 PE |
274 | /* Bash 2.0 gives us an environment variable containing flags |
275 | indicating ARGV elements that should not be considered arguments. */ | |
276 | ||
554ed1ff | 277 | # ifdef USE_NONOPTION_FLAGS |
49fb5799 PE |
278 | /* Defined in getopt_init.c */ |
279 | extern char *__getopt_nonoption_flags; | |
280 | ||
281 | static int nonoption_flags_max_len; | |
282 | static int nonoption_flags_len; | |
554ed1ff | 283 | # endif |
49fb5799 | 284 | |
554ed1ff RS |
285 | # ifdef USE_NONOPTION_FLAGS |
286 | # define SWAP_FLAGS(ch1, ch2) \ | |
49fb5799 PE |
287 | if (nonoption_flags_len > 0) \ |
288 | { \ | |
289 | char __tmp = __getopt_nonoption_flags[ch1]; \ | |
290 | __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \ | |
291 | __getopt_nonoption_flags[ch2] = __tmp; \ | |
292 | } | |
554ed1ff RS |
293 | # else |
294 | # define SWAP_FLAGS(ch1, ch2) | |
295 | # endif | |
49fb5799 PE |
296 | #else /* !_LIBC */ |
297 | # define SWAP_FLAGS(ch1, ch2) | |
298 | #endif /* _LIBC */ | |
299 | ||
300 | /* Exchange two adjacent subsequences of ARGV. | |
301 | One subsequence is elements [first_nonopt,last_nonopt) | |
302 | which contains all the non-options that have been skipped so far. | |
303 | The other is elements [last_nonopt,optind), which contains all | |
304 | the options processed since those non-options were skipped. | |
305 | ||
306 | `first_nonopt' and `last_nonopt' are relocated so that they describe | |
307 | the new indices of the non-options in ARGV after they are moved. */ | |
308 | ||
06bd27fd | 309 | #if defined __STDC__ && __STDC__ |
49fb5799 PE |
310 | static void exchange (char **); |
311 | #endif | |
312 | ||
313 | static void | |
314 | exchange (argv) | |
315 | char **argv; | |
316 | { | |
317 | int bottom = first_nonopt; | |
318 | int middle = last_nonopt; | |
319 | int top = optind; | |
320 | char *tem; | |
321 | ||
322 | /* Exchange the shorter segment with the far end of the longer segment. | |
323 | That puts the shorter segment into the right place. | |
324 | It leaves the longer segment in the right place overall, | |
325 | but it consists of two parts that need to be swapped next. */ | |
326 | ||
554ed1ff | 327 | #if defined _LIBC && defined USE_NONOPTION_FLAGS |
49fb5799 PE |
328 | /* First make sure the handling of the `__getopt_nonoption_flags' |
329 | string can work normally. Our top argument must be in the range | |
330 | of the string. */ | |
331 | if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len) | |
332 | { | |
333 | /* We must extend the array. The user plays games with us and | |
334 | presents new arguments. */ | |
335 | char *new_str = malloc (top + 1); | |
336 | if (new_str == NULL) | |
337 | nonoption_flags_len = nonoption_flags_max_len = 0; | |
338 | else | |
339 | { | |
4e941b8e UD |
340 | memset (__mempcpy (new_str, __getopt_nonoption_flags, |
341 | nonoption_flags_max_len), | |
342 | '\0', top + 1 - nonoption_flags_max_len); | |
49fb5799 PE |
343 | nonoption_flags_max_len = top + 1; |
344 | __getopt_nonoption_flags = new_str; | |
345 | } | |
346 | } | |
347 | #endif | |
348 | ||
349 | while (top > middle && middle > bottom) | |
350 | { | |
351 | if (top - middle > middle - bottom) | |
352 | { | |
353 | /* Bottom segment is the short one. */ | |
354 | int len = middle - bottom; | |
355 | register int i; | |
356 | ||
357 | /* Swap it with the top part of the top segment. */ | |
358 | for (i = 0; i < len; i++) | |
359 | { | |
360 | tem = argv[bottom + i]; | |
361 | argv[bottom + i] = argv[top - (middle - bottom) + i]; | |
362 | argv[top - (middle - bottom) + i] = tem; | |
363 | SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); | |
364 | } | |
365 | /* Exclude the moved bottom segment from further swapping. */ | |
366 | top -= len; | |
367 | } | |
368 | else | |
369 | { | |
370 | /* Top segment is the short one. */ | |
371 | int len = top - middle; | |
372 | register int i; | |
373 | ||
374 | /* Swap it with the bottom part of the bottom segment. */ | |
375 | for (i = 0; i < len; i++) | |
376 | { | |
377 | tem = argv[bottom + i]; | |
378 | argv[bottom + i] = argv[middle + i]; | |
379 | argv[middle + i] = tem; | |
380 | SWAP_FLAGS (bottom + i, middle + i); | |
381 | } | |
382 | /* Exclude the moved top segment from further swapping. */ | |
383 | bottom += len; | |
384 | } | |
385 | } | |
386 | ||
387 | /* Update records for the slots the non-options now occupy. */ | |
388 | ||
389 | first_nonopt += (optind - last_nonopt); | |
390 | last_nonopt = optind; | |
391 | } | |
392 | ||
393 | /* Initialize the internal data when the first call is made. */ | |
394 | ||
06bd27fd | 395 | #if defined __STDC__ && __STDC__ |
49fb5799 PE |
396 | static const char *_getopt_initialize (int, char *const *, const char *); |
397 | #endif | |
398 | static const char * | |
399 | _getopt_initialize (argc, argv, optstring) | |
400 | int argc; | |
401 | char *const *argv; | |
402 | const char *optstring; | |
403 | { | |
404 | /* Start processing options with ARGV-element 1 (since ARGV-element 0 | |
405 | is the program name); the sequence of previously skipped | |
406 | non-option ARGV-elements is empty. */ | |
407 | ||
408 | first_nonopt = last_nonopt = optind; | |
409 | ||
410 | nextchar = NULL; | |
411 | ||
412 | posixly_correct = getenv ("POSIXLY_CORRECT"); | |
413 | ||
414 | /* Determine how to handle the ordering of options and nonoptions. */ | |
415 | ||
416 | if (optstring[0] == '-') | |
417 | { | |
418 | ordering = RETURN_IN_ORDER; | |
419 | ++optstring; | |
420 | } | |
421 | else if (optstring[0] == '+') | |
422 | { | |
423 | ordering = REQUIRE_ORDER; | |
424 | ++optstring; | |
425 | } | |
426 | else if (posixly_correct != NULL) | |
427 | ordering = REQUIRE_ORDER; | |
428 | else | |
429 | ordering = PERMUTE; | |
430 | ||
554ed1ff | 431 | #if defined _LIBC && defined USE_NONOPTION_FLAGS |
49fb5799 | 432 | if (posixly_correct == NULL |
554ed1ff | 433 | && argc == __libc_argc && argv == __libc_argv) |
49fb5799 PE |
434 | { |
435 | if (nonoption_flags_max_len == 0) | |
436 | { | |
437 | if (__getopt_nonoption_flags == NULL | |
438 | || __getopt_nonoption_flags[0] == '\0') | |
439 | nonoption_flags_max_len = -1; | |
440 | else | |
441 | { | |
442 | const char *orig_str = __getopt_nonoption_flags; | |
443 | int len = nonoption_flags_max_len = strlen (orig_str); | |
444 | if (nonoption_flags_max_len < argc) | |
445 | nonoption_flags_max_len = argc; | |
446 | __getopt_nonoption_flags = | |
447 | (char *) malloc (nonoption_flags_max_len); | |
448 | if (__getopt_nonoption_flags == NULL) | |
449 | nonoption_flags_max_len = -1; | |
450 | else | |
4e941b8e UD |
451 | memset (__mempcpy (__getopt_nonoption_flags, orig_str, len), |
452 | '\0', nonoption_flags_max_len - len); | |
49fb5799 PE |
453 | } |
454 | } | |
455 | nonoption_flags_len = nonoption_flags_max_len; | |
456 | } | |
457 | else | |
458 | nonoption_flags_len = 0; | |
459 | #endif | |
460 | ||
461 | return optstring; | |
462 | } | |
463 | \f | |
464 | /* Scan elements of ARGV (whose length is ARGC) for option characters | |
465 | given in OPTSTRING. | |
466 | ||
467 | If an element of ARGV starts with '-', and is not exactly "-" or "--", | |
468 | then it is an option element. The characters of this element | |
469 | (aside from the initial '-') are option characters. If `getopt' | |
470 | is called repeatedly, it returns successively each of the option characters | |
471 | from each of the option elements. | |
472 | ||
473 | If `getopt' finds another option character, it returns that character, | |
474 | updating `optind' and `nextchar' so that the next call to `getopt' can | |
475 | resume the scan with the following option character or ARGV-element. | |
476 | ||
477 | If there are no more option characters, `getopt' returns -1. | |
478 | Then `optind' is the index in ARGV of the first ARGV-element | |
479 | that is not an option. (The ARGV-elements have been permuted | |
480 | so that those that are not options now come last.) | |
481 | ||
482 | OPTSTRING is a string containing the legitimate option characters. | |
483 | If an option character is seen that is not listed in OPTSTRING, | |
484 | return '?' after printing an error message. If you set `opterr' to | |
485 | zero, the error message is suppressed but we still return '?'. | |
486 | ||
487 | If a char in OPTSTRING is followed by a colon, that means it wants an arg, | |
488 | so the following text in the same ARGV-element, or the text of the following | |
489 | ARGV-element, is returned in `optarg'. Two colons mean an option that | |
490 | wants an optional arg; if there is text in the current ARGV-element, | |
491 | it is returned in `optarg', otherwise `optarg' is set to zero. | |
492 | ||
493 | If OPTSTRING starts with `-' or `+', it requests different methods of | |
494 | handling the non-option ARGV-elements. | |
495 | See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. | |
496 | ||
497 | Long-named options begin with `--' instead of `-'. | |
498 | Their names may be abbreviated as long as the abbreviation is unique | |
499 | or is an exact match for some defined option. If they have an | |
500 | argument, it follows the option name in the same ARGV-element, separated | |
501 | from the option name by a `=', or else the in next ARGV-element. | |
502 | When `getopt' finds a long-named option, it returns 0 if that option's | |
503 | `flag' field is nonzero, the value of the option's `val' field | |
504 | if the `flag' field is zero. | |
505 | ||
506 | The elements of ARGV aren't really const, because we permute them. | |
507 | But we pretend they're const in the prototype to be compatible | |
508 | with other systems. | |
509 | ||
510 | LONGOPTS is a vector of `struct option' terminated by an | |
511 | element containing a name which is zero. | |
512 | ||
513 | LONGIND returns the index in LONGOPT of the long-named option found. | |
514 | It is only valid when a long-named option has been found by the most | |
515 | recent call. | |
516 | ||
517 | If LONG_ONLY is nonzero, '-' as well as '--' can introduce | |
518 | long-named options. */ | |
519 | ||
520 | int | |
521 | _getopt_internal (argc, argv, optstring, longopts, longind, long_only) | |
522 | int argc; | |
523 | char *const *argv; | |
524 | const char *optstring; | |
525 | const struct option *longopts; | |
526 | int *longind; | |
527 | int long_only; | |
528 | { | |
554ed1ff RS |
529 | int print_errors = opterr; |
530 | if (optstring[0] == ':') | |
531 | print_errors = 0; | |
532 | ||
533 | if (argc < 1) | |
534 | return -1; | |
535 | ||
49fb5799 PE |
536 | optarg = NULL; |
537 | ||
538 | if (optind == 0 || !__getopt_initialized) | |
539 | { | |
540 | if (optind == 0) | |
541 | optind = 1; /* Don't scan ARGV[0], the program name. */ | |
542 | optstring = _getopt_initialize (argc, argv, optstring); | |
543 | __getopt_initialized = 1; | |
544 | } | |
545 | ||
546 | /* Test whether ARGV[optind] points to a non-option argument. | |
547 | Either it does not have option syntax, or there is an environment flag | |
548 | from the shell indicating it is not an option. The later information | |
549 | is only used when the used in the GNU libc. */ | |
554ed1ff | 550 | #if defined _LIBC && defined USE_NONOPTION_FLAGS |
1823194b UD |
551 | # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \ |
552 | || (optind < nonoption_flags_len \ | |
553 | && __getopt_nonoption_flags[optind] == '1')) | |
49fb5799 | 554 | #else |
1823194b | 555 | # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0') |
49fb5799 PE |
556 | #endif |
557 | ||
558 | if (nextchar == NULL || *nextchar == '\0') | |
559 | { | |
560 | /* Advance to the next ARGV-element. */ | |
561 | ||
562 | /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been | |
563 | moved back by the user (who may also have changed the arguments). */ | |
564 | if (last_nonopt > optind) | |
565 | last_nonopt = optind; | |
566 | if (first_nonopt > optind) | |
567 | first_nonopt = optind; | |
568 | ||
569 | if (ordering == PERMUTE) | |
570 | { | |
571 | /* If we have just processed some options following some non-options, | |
572 | exchange them so that the options come first. */ | |
573 | ||
574 | if (first_nonopt != last_nonopt && last_nonopt != optind) | |
575 | exchange ((char **) argv); | |
576 | else if (last_nonopt != optind) | |
577 | first_nonopt = optind; | |
578 | ||
579 | /* Skip any additional non-options | |
580 | and extend the range of non-options previously skipped. */ | |
581 | ||
582 | while (optind < argc && NONOPTION_P) | |
583 | optind++; | |
584 | last_nonopt = optind; | |
585 | } | |
586 | ||
587 | /* The special ARGV-element `--' means premature end of options. | |
588 | Skip it like a null option, | |
589 | then exchange with previous non-options as if it were an option, | |
590 | then skip everything else like a non-option. */ | |
591 | ||
592 | if (optind != argc && !strcmp (argv[optind], "--")) | |
593 | { | |
594 | optind++; | |
595 | ||
596 | if (first_nonopt != last_nonopt && last_nonopt != optind) | |
597 | exchange ((char **) argv); | |
598 | else if (first_nonopt == last_nonopt) | |
599 | first_nonopt = optind; | |
600 | last_nonopt = argc; | |
601 | ||
602 | optind = argc; | |
603 | } | |
604 | ||
605 | /* If we have done all the ARGV-elements, stop the scan | |
606 | and back over any non-options that we skipped and permuted. */ | |
607 | ||
608 | if (optind == argc) | |
609 | { | |
610 | /* Set the next-arg-index to point at the non-options | |
611 | that we previously skipped, so the caller will digest them. */ | |
612 | if (first_nonopt != last_nonopt) | |
613 | optind = first_nonopt; | |
614 | return -1; | |
615 | } | |
616 | ||
617 | /* If we have come to a non-option and did not permute it, | |
618 | either stop the scan or describe it to the caller and pass it by. */ | |
619 | ||
620 | if (NONOPTION_P) | |
621 | { | |
622 | if (ordering == REQUIRE_ORDER) | |
623 | return -1; | |
624 | optarg = argv[optind++]; | |
625 | return 1; | |
626 | } | |
627 | ||
628 | /* We have found another option-ARGV-element. | |
629 | Skip the initial punctuation. */ | |
630 | ||
631 | nextchar = (argv[optind] + 1 | |
632 | + (longopts != NULL && argv[optind][1] == '-')); | |
633 | } | |
634 | ||
635 | /* Decode the current option-ARGV-element. */ | |
636 | ||
637 | /* Check whether the ARGV-element is a long option. | |
638 | ||
639 | If long_only and the ARGV-element has the form "-f", where f is | |
640 | a valid short option, don't consider it an abbreviated form of | |
641 | a long option that starts with f. Otherwise there would be no | |
642 | way to give the -f short option. | |
643 | ||
644 | On the other hand, if there's a long option "fubar" and | |
645 | the ARGV-element is "-fu", do consider that an abbreviation of | |
646 | the long option, just like "--fu", and not "-f" with arg "u". | |
647 | ||
648 | This distinction seems to be the most useful approach. */ | |
649 | ||
650 | if (longopts != NULL | |
651 | && (argv[optind][1] == '-' | |
652 | || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1]))))) | |
653 | { | |
654 | char *nameend; | |
655 | const struct option *p; | |
656 | const struct option *pfound = NULL; | |
657 | int exact = 0; | |
658 | int ambig = 0; | |
659 | int indfound = -1; | |
660 | int option_index; | |
661 | ||
662 | for (nameend = nextchar; *nameend && *nameend != '='; nameend++) | |
663 | /* Do nothing. */ ; | |
664 | ||
665 | /* Test all long options for either exact match | |
666 | or abbreviated matches. */ | |
667 | for (p = longopts, option_index = 0; p->name; p++, option_index++) | |
9832d51d | 668 | if (!strncmp (p->name, nextchar, nameend - nextchar)) |
49fb5799 PE |
669 | { |
670 | if ((unsigned int) (nameend - nextchar) | |
671 | == (unsigned int) strlen (p->name)) | |
672 | { | |
673 | /* Exact match found. */ | |
674 | pfound = p; | |
675 | indfound = option_index; | |
676 | exact = 1; | |
677 | break; | |
678 | } | |
679 | else if (pfound == NULL) | |
680 | { | |
681 | /* First nonexact match found. */ | |
682 | pfound = p; | |
683 | indfound = option_index; | |
684 | } | |
554ed1ff RS |
685 | else if (long_only |
686 | || pfound->has_arg != p->has_arg | |
687 | || pfound->flag != p->flag | |
688 | || pfound->val != p->val) | |
49fb5799 PE |
689 | /* Second or later nonexact match found. */ |
690 | ambig = 1; | |
691 | } | |
692 | ||
693 | if (ambig && !exact) | |
694 | { | |
554ed1ff RS |
695 | if (print_errors) |
696 | { | |
697 | #if defined _LIBC && defined USE_IN_LIBIO | |
698 | char *buf; | |
699 | ||
700 | if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"), | |
701 | argv[0], argv[optind]) >= 0) | |
702 | { | |
703 | ||
704 | if (_IO_fwide (stderr, 0) > 0) | |
705 | __fwprintf (stderr, L"%s", buf); | |
706 | else | |
707 | fputs (buf, stderr); | |
708 | ||
709 | free (buf); | |
710 | } | |
711 | #else | |
712 | fprintf (stderr, _("%s: option `%s' is ambiguous\n"), | |
713 | argv[0], argv[optind]); | |
714 | #endif | |
715 | } | |
49fb5799 PE |
716 | nextchar += strlen (nextchar); |
717 | optind++; | |
718 | optopt = 0; | |
719 | return '?'; | |
720 | } | |
721 | ||
722 | if (pfound != NULL) | |
723 | { | |
724 | option_index = indfound; | |
725 | optind++; | |
726 | if (*nameend) | |
727 | { | |
728 | /* Don't test has_arg with >, because some C compilers don't | |
729 | allow it to be used on enums. */ | |
730 | if (pfound->has_arg) | |
731 | optarg = nameend + 1; | |
732 | else | |
733 | { | |
554ed1ff | 734 | if (print_errors) |
4ee9629e | 735 | { |
554ed1ff RS |
736 | #if defined _LIBC && defined USE_IN_LIBIO |
737 | char *buf; | |
738 | int n; | |
739 | #endif | |
740 | ||
4ee9629e | 741 | if (argv[optind - 1][1] == '-') |
554ed1ff RS |
742 | { |
743 | /* --option */ | |
744 | #if defined _LIBC && defined USE_IN_LIBIO | |
745 | n = __asprintf (&buf, _("\ | |
746 | %s: option `--%s' doesn't allow an argument\n"), | |
747 | argv[0], pfound->name); | |
748 | #else | |
749 | fprintf (stderr, _("\ | |
750 | %s: option `--%s' doesn't allow an argument\n"), | |
751 | argv[0], pfound->name); | |
752 | #endif | |
753 | } | |
4ee9629e | 754 | else |
554ed1ff RS |
755 | { |
756 | /* +option or -option */ | |
757 | #if defined _LIBC && defined USE_IN_LIBIO | |
758 | n = __asprintf (&buf, _("\ | |
759 | %s: option `%c%s' doesn't allow an argument\n"), | |
760 | argv[0], argv[optind - 1][0], | |
761 | pfound->name); | |
762 | #else | |
763 | fprintf (stderr, _("\ | |
764 | %s: option `%c%s' doesn't allow an argument\n"), | |
765 | argv[0], argv[optind - 1][0], pfound->name); | |
766 | #endif | |
767 | } | |
768 | ||
769 | #if defined _LIBC && defined USE_IN_LIBIO | |
770 | if (n >= 0) | |
771 | { | |
772 | if (_IO_fwide (stderr, 0) > 0) | |
773 | __fwprintf (stderr, L"%s", buf); | |
774 | else | |
775 | fputs (buf, stderr); | |
776 | ||
777 | free (buf); | |
778 | } | |
779 | #endif | |
4ee9629e | 780 | } |
49fb5799 PE |
781 | |
782 | nextchar += strlen (nextchar); | |
783 | ||
784 | optopt = pfound->val; | |
785 | return '?'; | |
786 | } | |
787 | } | |
788 | else if (pfound->has_arg == 1) | |
789 | { | |
790 | if (optind < argc) | |
791 | optarg = argv[optind++]; | |
792 | else | |
793 | { | |
554ed1ff RS |
794 | if (print_errors) |
795 | { | |
796 | #if defined _LIBC && defined USE_IN_LIBIO | |
797 | char *buf; | |
798 | ||
799 | if (__asprintf (&buf, _("\ | |
800 | %s: option `%s' requires an argument\n"), | |
801 | argv[0], argv[optind - 1]) >= 0) | |
802 | { | |
803 | if (_IO_fwide (stderr, 0) > 0) | |
804 | __fwprintf (stderr, L"%s", buf); | |
805 | else | |
806 | fputs (buf, stderr); | |
807 | ||
808 | free (buf); | |
809 | } | |
810 | #else | |
811 | fprintf (stderr, | |
812 | _("%s: option `%s' requires an argument\n"), | |
813 | argv[0], argv[optind - 1]); | |
814 | #endif | |
815 | } | |
49fb5799 PE |
816 | nextchar += strlen (nextchar); |
817 | optopt = pfound->val; | |
818 | return optstring[0] == ':' ? ':' : '?'; | |
819 | } | |
820 | } | |
821 | nextchar += strlen (nextchar); | |
822 | if (longind != NULL) | |
823 | *longind = option_index; | |
824 | if (pfound->flag) | |
825 | { | |
826 | *(pfound->flag) = pfound->val; | |
827 | return 0; | |
828 | } | |
829 | return pfound->val; | |
830 | } | |
831 | ||
832 | /* Can't find it as a long option. If this is not getopt_long_only, | |
833 | or the option starts with '--' or is not a valid short | |
834 | option, then it's an error. | |
835 | Otherwise interpret it as a short option. */ | |
836 | if (!long_only || argv[optind][1] == '-' | |
837 | || my_index (optstring, *nextchar) == NULL) | |
838 | { | |
554ed1ff | 839 | if (print_errors) |
49fb5799 | 840 | { |
554ed1ff RS |
841 | #if defined _LIBC && defined USE_IN_LIBIO |
842 | char *buf; | |
843 | int n; | |
844 | #endif | |
845 | ||
49fb5799 | 846 | if (argv[optind][1] == '-') |
554ed1ff RS |
847 | { |
848 | /* --option */ | |
849 | #if defined _LIBC && defined USE_IN_LIBIO | |
850 | n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"), | |
851 | argv[0], nextchar); | |
852 | #else | |
853 | fprintf (stderr, _("%s: unrecognized option `--%s'\n"), | |
854 | argv[0], nextchar); | |
855 | #endif | |
856 | } | |
49fb5799 | 857 | else |
554ed1ff RS |
858 | { |
859 | /* +option or -option */ | |
860 | #if defined _LIBC && defined USE_IN_LIBIO | |
861 | n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"), | |
862 | argv[0], argv[optind][0], nextchar); | |
863 | #else | |
864 | fprintf (stderr, _("%s: unrecognized option `%c%s'\n"), | |
865 | argv[0], argv[optind][0], nextchar); | |
866 | #endif | |
867 | } | |
868 | ||
869 | #if defined _LIBC && defined USE_IN_LIBIO | |
870 | if (n >= 0) | |
871 | { | |
872 | if (_IO_fwide (stderr, 0) > 0) | |
873 | __fwprintf (stderr, L"%s", buf); | |
874 | else | |
875 | fputs (buf, stderr); | |
876 | ||
877 | free (buf); | |
878 | } | |
879 | #endif | |
49fb5799 PE |
880 | } |
881 | nextchar = (char *) ""; | |
882 | optind++; | |
883 | optopt = 0; | |
884 | return '?'; | |
885 | } | |
886 | } | |
887 | ||
888 | /* Look at and handle the next short option-character. */ | |
889 | ||
890 | { | |
891 | char c = *nextchar++; | |
892 | char *temp = my_index (optstring, c); | |
893 | ||
894 | /* Increment `optind' when we start to process its last character. */ | |
895 | if (*nextchar == '\0') | |
896 | ++optind; | |
897 | ||
898 | if (temp == NULL || c == ':') | |
899 | { | |
554ed1ff | 900 | if (print_errors) |
49fb5799 | 901 | { |
554ed1ff RS |
902 | #if defined _LIBC && defined USE_IN_LIBIO |
903 | char *buf; | |
904 | int n; | |
905 | #endif | |
906 | ||
49fb5799 | 907 | if (posixly_correct) |
554ed1ff RS |
908 | { |
909 | /* 1003.2 specifies the format of this message. */ | |
910 | #if defined _LIBC && defined USE_IN_LIBIO | |
911 | n = __asprintf (&buf, _("%s: illegal option -- %c\n"), | |
912 | argv[0], c); | |
913 | #else | |
914 | fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c); | |
915 | #endif | |
916 | } | |
49fb5799 | 917 | else |
554ed1ff RS |
918 | { |
919 | #if defined _LIBC && defined USE_IN_LIBIO | |
920 | n = __asprintf (&buf, _("%s: invalid option -- %c\n"), | |
921 | argv[0], c); | |
922 | #else | |
923 | fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c); | |
924 | #endif | |
925 | } | |
926 | ||
927 | #if defined _LIBC && defined USE_IN_LIBIO | |
928 | if (n >= 0) | |
929 | { | |
930 | if (_IO_fwide (stderr, 0) > 0) | |
931 | __fwprintf (stderr, L"%s", buf); | |
932 | else | |
933 | fputs (buf, stderr); | |
934 | ||
935 | free (buf); | |
936 | } | |
937 | #endif | |
49fb5799 PE |
938 | } |
939 | optopt = c; | |
940 | return '?'; | |
941 | } | |
942 | /* Convenience. Treat POSIX -W foo same as long option --foo */ | |
943 | if (temp[0] == 'W' && temp[1] == ';') | |
944 | { | |
945 | char *nameend; | |
946 | const struct option *p; | |
947 | const struct option *pfound = NULL; | |
948 | int exact = 0; | |
949 | int ambig = 0; | |
950 | int indfound = 0; | |
951 | int option_index; | |
952 | ||
953 | /* This is an option that requires an argument. */ | |
954 | if (*nextchar != '\0') | |
955 | { | |
956 | optarg = nextchar; | |
957 | /* If we end this ARGV-element by taking the rest as an arg, | |
958 | we must advance to the next element now. */ | |
959 | optind++; | |
960 | } | |
961 | else if (optind == argc) | |
962 | { | |
554ed1ff | 963 | if (print_errors) |
49fb5799 PE |
964 | { |
965 | /* 1003.2 specifies the format of this message. */ | |
554ed1ff RS |
966 | #if defined _LIBC && defined USE_IN_LIBIO |
967 | char *buf; | |
968 | ||
969 | if (__asprintf (&buf, | |
970 | _("%s: option requires an argument -- %c\n"), | |
971 | argv[0], c) >= 0) | |
972 | { | |
973 | if (_IO_fwide (stderr, 0) > 0) | |
974 | __fwprintf (stderr, L"%s", buf); | |
975 | else | |
976 | fputs (buf, stderr); | |
977 | ||
978 | free (buf); | |
979 | } | |
980 | #else | |
49fb5799 PE |
981 | fprintf (stderr, _("%s: option requires an argument -- %c\n"), |
982 | argv[0], c); | |
554ed1ff | 983 | #endif |
49fb5799 PE |
984 | } |
985 | optopt = c; | |
986 | if (optstring[0] == ':') | |
987 | c = ':'; | |
988 | else | |
989 | c = '?'; | |
990 | return c; | |
991 | } | |
992 | else | |
993 | /* We already incremented `optind' once; | |
994 | increment it again when taking next ARGV-elt as argument. */ | |
995 | optarg = argv[optind++]; | |
996 | ||
997 | /* optarg is now the argument, see if it's in the | |
998 | table of longopts. */ | |
999 | ||
1000 | for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++) | |
1001 | /* Do nothing. */ ; | |
1002 | ||
1003 | /* Test all long options for either exact match | |
1004 | or abbreviated matches. */ | |
1005 | for (p = longopts, option_index = 0; p->name; p++, option_index++) | |
9832d51d | 1006 | if (!strncmp (p->name, nextchar, nameend - nextchar)) |
49fb5799 PE |
1007 | { |
1008 | if ((unsigned int) (nameend - nextchar) == strlen (p->name)) | |
1009 | { | |
1010 | /* Exact match found. */ | |
1011 | pfound = p; | |
1012 | indfound = option_index; | |
1013 | exact = 1; | |
1014 | break; | |
1015 | } | |
1016 | else if (pfound == NULL) | |
1017 | { | |
1018 | /* First nonexact match found. */ | |
1019 | pfound = p; | |
1020 | indfound = option_index; | |
1021 | } | |
1022 | else | |
1023 | /* Second or later nonexact match found. */ | |
1024 | ambig = 1; | |
1025 | } | |
1026 | if (ambig && !exact) | |
1027 | { | |
554ed1ff RS |
1028 | if (print_errors) |
1029 | { | |
1030 | #if defined _LIBC && defined USE_IN_LIBIO | |
1031 | char *buf; | |
1032 | ||
1033 | if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"), | |
1034 | argv[0], argv[optind]) >= 0) | |
1035 | { | |
1036 | if (_IO_fwide (stderr, 0) > 0) | |
1037 | __fwprintf (stderr, L"%s", buf); | |
1038 | else | |
1039 | fputs (buf, stderr); | |
1040 | ||
1041 | free (buf); | |
1042 | } | |
1043 | #else | |
1044 | fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"), | |
1045 | argv[0], argv[optind]); | |
1046 | #endif | |
1047 | } | |
49fb5799 PE |
1048 | nextchar += strlen (nextchar); |
1049 | optind++; | |
1050 | return '?'; | |
1051 | } | |
1052 | if (pfound != NULL) | |
1053 | { | |
1054 | option_index = indfound; | |
1055 | if (*nameend) | |
1056 | { | |
1057 | /* Don't test has_arg with >, because some C compilers don't | |
1058 | allow it to be used on enums. */ | |
1059 | if (pfound->has_arg) | |
1060 | optarg = nameend + 1; | |
1061 | else | |
1062 | { | |
554ed1ff RS |
1063 | if (print_errors) |
1064 | { | |
1065 | #if defined _LIBC && defined USE_IN_LIBIO | |
1066 | char *buf; | |
1067 | ||
1068 | if (__asprintf (&buf, _("\ | |
1069 | %s: option `-W %s' doesn't allow an argument\n"), | |
1070 | argv[0], pfound->name) >= 0) | |
1071 | { | |
1072 | if (_IO_fwide (stderr, 0) > 0) | |
1073 | __fwprintf (stderr, L"%s", buf); | |
1074 | else | |
1075 | fputs (buf, stderr); | |
1076 | ||
1077 | free (buf); | |
1078 | } | |
1079 | #else | |
1080 | fprintf (stderr, _("\ | |
49fb5799 | 1081 | %s: option `-W %s' doesn't allow an argument\n"), |
554ed1ff RS |
1082 | argv[0], pfound->name); |
1083 | #endif | |
1084 | } | |
49fb5799 PE |
1085 | |
1086 | nextchar += strlen (nextchar); | |
1087 | return '?'; | |
1088 | } | |
1089 | } | |
1090 | else if (pfound->has_arg == 1) | |
1091 | { | |
1092 | if (optind < argc) | |
1093 | optarg = argv[optind++]; | |
1094 | else | |
1095 | { | |
554ed1ff RS |
1096 | if (print_errors) |
1097 | { | |
1098 | #if defined _LIBC && defined USE_IN_LIBIO | |
1099 | char *buf; | |
1100 | ||
1101 | if (__asprintf (&buf, _("\ | |
1102 | %s: option `%s' requires an argument\n"), | |
1103 | argv[0], argv[optind - 1]) >= 0) | |
1104 | { | |
1105 | if (_IO_fwide (stderr, 0) > 0) | |
1106 | __fwprintf (stderr, L"%s", buf); | |
1107 | else | |
1108 | fputs (buf, stderr); | |
1109 | ||
1110 | free (buf); | |
1111 | } | |
1112 | #else | |
1113 | fprintf (stderr, | |
1114 | _("%s: option `%s' requires an argument\n"), | |
1115 | argv[0], argv[optind - 1]); | |
1116 | #endif | |
1117 | } | |
49fb5799 PE |
1118 | nextchar += strlen (nextchar); |
1119 | return optstring[0] == ':' ? ':' : '?'; | |
1120 | } | |
1121 | } | |
1122 | nextchar += strlen (nextchar); | |
1123 | if (longind != NULL) | |
1124 | *longind = option_index; | |
1125 | if (pfound->flag) | |
1126 | { | |
1127 | *(pfound->flag) = pfound->val; | |
1128 | return 0; | |
1129 | } | |
1130 | return pfound->val; | |
1131 | } | |
1132 | nextchar = NULL; | |
1133 | return 'W'; /* Let the application handle it. */ | |
1134 | } | |
1135 | if (temp[1] == ':') | |
1136 | { | |
1137 | if (temp[2] == ':') | |
1138 | { | |
1139 | /* This is an option that accepts an argument optionally. */ | |
1140 | if (*nextchar != '\0') | |
1141 | { | |
1142 | optarg = nextchar; | |
1143 | optind++; | |
1144 | } | |
1145 | else | |
1146 | optarg = NULL; | |
1147 | nextchar = NULL; | |
1148 | } | |
1149 | else | |
1150 | { | |
1151 | /* This is an option that requires an argument. */ | |
1152 | if (*nextchar != '\0') | |
1153 | { | |
1154 | optarg = nextchar; | |
1155 | /* If we end this ARGV-element by taking the rest as an arg, | |
1156 | we must advance to the next element now. */ | |
1157 | optind++; | |
1158 | } | |
1159 | else if (optind == argc) | |
1160 | { | |
554ed1ff | 1161 | if (print_errors) |
49fb5799 PE |
1162 | { |
1163 | /* 1003.2 specifies the format of this message. */ | |
554ed1ff RS |
1164 | #if defined _LIBC && defined USE_IN_LIBIO |
1165 | char *buf; | |
1166 | ||
1167 | if (__asprintf (&buf, _("\ | |
1168 | %s: option requires an argument -- %c\n"), | |
1169 | argv[0], c) >= 0) | |
1170 | { | |
1171 | if (_IO_fwide (stderr, 0) > 0) | |
1172 | __fwprintf (stderr, L"%s", buf); | |
1173 | else | |
1174 | fputs (buf, stderr); | |
1175 | ||
1176 | free (buf); | |
1177 | } | |
1178 | #else | |
49fb5799 | 1179 | fprintf (stderr, |
554ed1ff RS |
1180 | _("%s: option requires an argument -- %c\n"), |
1181 | argv[0], c); | |
1182 | #endif | |
49fb5799 PE |
1183 | } |
1184 | optopt = c; | |
1185 | if (optstring[0] == ':') | |
1186 | c = ':'; | |
1187 | else | |
1188 | c = '?'; | |
1189 | } | |
1190 | else | |
1191 | /* We already incremented `optind' once; | |
1192 | increment it again when taking next ARGV-elt as argument. */ | |
1193 | optarg = argv[optind++]; | |
1194 | nextchar = NULL; | |
1195 | } | |
1196 | } | |
1197 | return c; | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | int | |
1202 | getopt (argc, argv, optstring) | |
1203 | int argc; | |
1204 | char *const *argv; | |
1205 | const char *optstring; | |
1206 | { | |
1207 | return _getopt_internal (argc, argv, optstring, | |
1208 | (const struct option *) 0, | |
1209 | (int *) 0, | |
1210 | 0); | |
1211 | } | |
1212 | ||
1213 | #endif /* Not ELIDE_CODE. */ | |
1214 | \f | |
1215 | #ifdef TEST | |
1216 | ||
1217 | /* Compile with -DTEST to make an executable for use in testing | |
1218 | the above definition of `getopt'. */ | |
1219 | ||
1220 | int | |
1221 | main (argc, argv) | |
1222 | int argc; | |
1223 | char **argv; | |
1224 | { | |
1225 | int c; | |
1226 | int digit_optind = 0; | |
1227 | ||
1228 | while (1) | |
1229 | { | |
1230 | int this_option_optind = optind ? optind : 1; | |
1231 | ||
1232 | c = getopt (argc, argv, "abc:d:0123456789"); | |
1233 | if (c == -1) | |
1234 | break; | |
1235 | ||
1236 | switch (c) | |
1237 | { | |
1238 | case '0': | |
1239 | case '1': | |
1240 | case '2': | |
1241 | case '3': | |
1242 | case '4': | |
1243 | case '5': | |
1244 | case '6': | |
1245 | case '7': | |
1246 | case '8': | |
1247 | case '9': | |
1248 | if (digit_optind != 0 && digit_optind != this_option_optind) | |
1249 | printf ("digits occur in two different argv-elements.\n"); | |
1250 | digit_optind = this_option_optind; | |
1251 | printf ("option %c\n", c); | |
1252 | break; | |
1253 | ||
1254 | case 'a': | |
1255 | printf ("option a\n"); | |
1256 | break; | |
1257 | ||
1258 | case 'b': | |
1259 | printf ("option b\n"); | |
1260 | break; | |
1261 | ||
1262 | case 'c': | |
1263 | printf ("option c with value `%s'\n", optarg); | |
1264 | break; | |
1265 | ||
1266 | case '?': | |
1267 | break; | |
1268 | ||
1269 | default: | |
1270 | printf ("?? getopt returned character code 0%o ??\n", c); | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | if (optind < argc) | |
1275 | { | |
1276 | printf ("non-option ARGV-elements: "); | |
1277 | while (optind < argc) | |
1278 | printf ("%s ", argv[optind++]); | |
1279 | printf ("\n"); | |
1280 | } | |
1281 | ||
1282 | exit (0); | |
1283 | } | |
1284 | ||
1285 | #endif /* TEST */ | |
ab5796a9 MB |
1286 | |
1287 | /* arch-tag: 0e6da124-7269-4785-a9de-094c263d20dc | |
1288 | (do not change this comment) */ |