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authorTon Voon <tonvoon@users.sourceforge.net>2003-02-10 23:34:46 +0000
committerTon Voon <tonvoon@users.sourceforge.net>2003-02-10 23:34:46 +0000
commitf241699ca1097241525466e02a30c575024aed4e (patch)
treed7a9aafb63952bd4257b3016bb3b8af0d7fe66cf /plugins/getopt.c
parentc25acfc5f74d7c83a8e5041b74051720767a0007 (diff)
downloadmonitoring-plugins-f241699ca1097241525466e02a30c575024aed4e.tar.gz
Removing getopt files - now in new lib directory
git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@313 f882894a-f735-0410-b71e-b25c423dba1c
Diffstat (limited to 'plugins/getopt.c')
-rw-r--r--plugins/getopt.c724
1 files changed, 0 insertions, 724 deletions
diff --git a/plugins/getopt.c b/plugins/getopt.c
deleted file mode 100644
index 364a1459..00000000
--- a/plugins/getopt.c
+++ /dev/null
@@ -1,724 +0,0 @@
1/* Getopt for GNU.
2 NOTE: getopt is now part of the C library, so if you don't know what
3 "Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu
4 before changing it!
5
6 Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95
7 Free Software Foundation, Inc.
8
9 This program is free software; you can redistribute it and/or modify it
10 under the terms of the GNU General Public License as published by the
11 Free Software Foundation; either version 2, or (at your option) any
12 later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
22
23/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
24 Ditto for AIX 3.2 and <stdlib.h>. */
25#ifndef _NO_PROTO
26#define _NO_PROTO
27#endif
28
29#ifdef HAVE_CONFIG_H
30#include <config.h>
31#endif
32
33#if !defined (__STDC__) || !__STDC__
34/* This is a separate conditional since some stdc systems
35 reject `defined (const)'. */
36#ifndef const
37#define const
38#endif
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#if defined (_LIBC) || !defined (__GNU_LIBRARY__)
52
53
54/* This needs to come after some library #include
55 to get __GNU_LIBRARY__ defined. */
56#ifdef __GNU_LIBRARY__
57/* Don't include stdlib.h for non-GNU C libraries because some of them
58 contain conflicting prototypes for getopt. */
59#include <stdlib.h>
60#endif /* GNU C library. */
61
62#ifndef _
63/* This is for other GNU distributions with internationalized messages.
64 When compiling libc, the _ macro is predefined. */
65#ifdef HAVE_LIBINTL_H
66# include <libintl.h>
67# define _(msgid) gettext (msgid)
68#else
69# define _(msgid) (msgid)
70#endif
71#endif
72
73/* This version of `getopt' appears to the caller like standard Unix `getopt'
74 but it behaves differently for the user, since it allows the user
75 to intersperse the options with the other arguments.
76
77 As `getopt' works, it permutes the elements of ARGV so that,
78 when it is done, all the options precede everything else. Thus
79 all application programs are extended to handle flexible argument order.
80
81 Setting the environment variable POSIXLY_CORRECT disables permutation.
82 Then the behavior is completely standard.
83
84 GNU application programs can use a third alternative mode in which
85 they can distinguish the relative order of options and other arguments. */
86
87#include "getopt.h"
88
89/* For communication from `getopt' to the caller.
90 When `getopt' finds an option that takes an argument,
91 the argument value is returned here.
92 Also, when `ordering' is RETURN_IN_ORDER,
93 each non-option ARGV-element is returned here. */
94
95char *optarg = NULL;
96
97/* Index in ARGV of the next element to be scanned.
98 This is used for communication to and from the caller
99 and for communication between successive calls to `getopt'.
100
101 On entry to `getopt', zero means this is the first call; initialize.
102
103 When `getopt' returns EOF, this is the index of the first of the
104 non-option elements that the caller should itself scan.
105
106 Otherwise, `optind' communicates from one call to the next
107 how much of ARGV has been scanned so far. */
108
109/* XXX 1003.2 says this must be 1 before any call. */
110int optind = 0;
111
112/* The next char to be scanned in the option-element
113 in which the last option character we returned was found.
114 This allows us to pick up the scan where we left off.
115
116 If this is zero, or a null string, it means resume the scan
117 by advancing to the next ARGV-element. */
118
119static char *nextchar;
120
121/* Callers store zero here to inhibit the error message
122 for unrecognized options. */
123
124int opterr = 1;
125
126/* Set to an option character which was unrecognized.
127 This must be initialized on some systems to avoid linking in the
128 system's own getopt implementation. */
129
130int optopt = '?';
131
132/* Describe how to deal with options that follow non-option ARGV-elements.
133
134 If the caller did not specify anything,
135 the default is REQUIRE_ORDER if the environment variable
136 POSIXLY_CORRECT is defined, PERMUTE otherwise.
137
138 REQUIRE_ORDER means don't recognize them as options;
139 stop option processing when the first non-option is seen.
140 This is what Unix does.
141 This mode of operation is selected by either setting the environment
142 variable POSIXLY_CORRECT, or using `+' as the first character
143 of the list of option characters.
144
145 PERMUTE is the default. We permute the contents of ARGV as we scan,
146 so that eventually all the non-options are at the end. This allows options
147 to be given in any order, even with programs that were not written to
148 expect this.
149
150 RETURN_IN_ORDER is an option available to programs that were written
151 to expect options and other ARGV-elements in any order and that care about
152 the ordering of the two. We describe each non-option ARGV-element
153 as if it were the argument of an option with character code 1.
154 Using `-' as the first character of the list of option characters
155 selects this mode of operation.
156
157 The special argument `--' forces an end of option-scanning regardless
158 of the value of `ordering'. In the case of RETURN_IN_ORDER, only
159 `--' can cause `getopt' to return EOF with `optind' != ARGC. */
160
161static enum
162{
163 REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
164}
165ordering;
166
167/* Value of POSIXLY_CORRECT environment variable. */
168static char *posixly_correct;
169
170#ifdef __GNU_LIBRARY__
171/* We want to avoid inclusion of string.h with non-GNU libraries
172 because there are many ways it can cause trouble.
173 On some systems, it contains special magic macros that don't work
174 in GCC. */
175#include <string.h>
176#define my_index strchr
177#else
178
179/* Avoid depending on library functions or files
180 whose names are inconsistent. */
181
182char *getenv ();
183
184static char *
185my_index (str, chr)
186 const char *str;
187 int chr;
188{
189 while (*str) {
190 if (*str == chr)
191 return (char *) str;
192 str++;
193 }
194 return 0;
195}
196
197/* If using GCC, we can safely declare strlen this way.
198 If not using GCC, it is ok not to declare it. */
199#ifdef __GNUC__
200/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
201 That was relevant to code that was here before. */
202#if !defined (__STDC__) || !__STDC__
203/* gcc with -traditional declares the built-in strlen to return int,
204 and has done so at least since version 2.4.5. -- rms. */
205extern int strlen (const char *);
206#endif /* not __STDC__ */
207#endif /* __GNUC__ */
208
209#endif /* not __GNU_LIBRARY__ */
210
211/* Handle permutation of arguments. */
212
213/* Describe the part of ARGV that contains non-options that have
214 been skipped. `first_nonopt' is the index in ARGV of the first of them;
215 `last_nonopt' is the index after the last of them. */
216
217static int first_nonopt;
218static int last_nonopt;
219
220/* Exchange two adjacent subsequences of ARGV.
221 One subsequence is elements [first_nonopt,last_nonopt)
222 which contains all the non-options that have been skipped so far.
223 The other is elements [last_nonopt,optind), which contains all
224 the options processed since those non-options were skipped.
225
226 `first_nonopt' and `last_nonopt' are relocated so that they describe
227 the new indices of the non-options in ARGV after they are moved. */
228
229static void
230exchange (argv)
231 char **argv;
232{
233 int bottom = first_nonopt;
234 int middle = last_nonopt;
235 int top = optind;
236 char *tem;
237
238 /* Exchange the shorter segment with the far end of the longer segment.
239 That puts the shorter segment into the right place.
240 It leaves the longer segment in the right place overall,
241 but it consists of two parts that need to be swapped next. */
242
243 while (top > middle && middle > bottom) {
244 if (top - middle > middle - bottom) {
245 /* Bottom segment is the short one. */
246 int len = middle - bottom;
247 register int i;
248
249 /* Swap it with the top part of the top segment. */
250 for (i = 0; i < len; i++) {
251 tem = argv[bottom + i];
252 argv[bottom + i] = argv[top - (middle - bottom) + i];
253 argv[top - (middle - bottom) + i] = tem;
254 }
255 /* Exclude the moved bottom segment from further swapping. */
256 top -= len;
257 }
258 else {
259 /* Top segment is the short one. */
260 int len = top - middle;
261 register int i;
262
263 /* Swap it with the bottom part of the bottom segment. */
264 for (i = 0; i < len; i++) {
265 tem = argv[bottom + i];
266 argv[bottom + i] = argv[middle + i];
267 argv[middle + i] = tem;
268 }
269 /* Exclude the moved top segment from further swapping. */
270 bottom += len;
271 }
272 }
273
274 /* Update records for the slots the non-options now occupy. */
275
276 first_nonopt += (optind - last_nonopt);
277 last_nonopt = optind;
278}
279
280/* Initialize the internal data when the first call is made. */
281
282static const char *
283_getopt_initialize (optstring)
284 const char *optstring;
285{
286 /* Start processing options with ARGV-element 1 (since ARGV-element 0
287 is the program name); the sequence of previously skipped
288 non-option ARGV-elements is empty. */
289
290 first_nonopt = last_nonopt = optind = 1;
291
292 nextchar = NULL;
293
294 posixly_correct = getenv ("POSIXLY_CORRECT");
295
296 /* Determine how to handle the ordering of options and nonoptions. */
297
298 if (optstring[0] == '-') {
299 ordering = RETURN_IN_ORDER;
300 ++optstring;
301 }
302 else if (optstring[0] == '+') {
303 ordering = REQUIRE_ORDER;
304 ++optstring;
305 }
306 else if (posixly_correct != NULL)
307 ordering = REQUIRE_ORDER;
308 else
309 ordering = PERMUTE;
310
311 return optstring;
312}
313
314/* Scan elements of ARGV (whose length is ARGC) for option characters
315 given in OPTSTRING.
316
317 If an element of ARGV starts with '-', and is not exactly "-" or "--",
318 then it is an option element. The characters of this element
319 (aside from the initial '-') are option characters. If `getopt'
320 is called repeatedly, it returns successively each of the option characters
321 from each of the option elements.
322
323 If `getopt' finds another option character, it returns that character,
324 updating `optind' and `nextchar' so that the next call to `getopt' can
325 resume the scan with the following option character or ARGV-element.
326
327 If there are no more option characters, `getopt' returns `EOF'.
328 Then `optind' is the index in ARGV of the first ARGV-element
329 that is not an option. (The ARGV-elements have been permuted
330 so that those that are not options now come last.)
331
332 OPTSTRING is a string containing the legitimate option characters.
333 If an option character is seen that is not listed in OPTSTRING,
334 return '?' after printing an error message. If you set `opterr' to
335 zero, the error message is suppressed but we still return '?'.
336
337 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
338 so the following text in the same ARGV-element, or the text of the following
339 ARGV-element, is returned in `optarg'. Two colons mean an option that
340 wants an optional arg; if there is text in the current ARGV-element,
341 it is returned in `optarg', otherwise `optarg' is set to zero.
342
343 If OPTSTRING starts with `-' or `+', it requests different methods of
344 handling the non-option ARGV-elements.
345 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
346
347 Long-named options begin with `--' instead of `-'.
348 Their names may be abbreviated as long as the abbreviation is unique
349 or is an exact match for some defined option. If they have an
350 argument, it follows the option name in the same ARGV-element, separated
351 from the option name by a `=', or else the in next ARGV-element.
352 When `getopt' finds a long-named option, it returns 0 if that option's
353 `flag' field is nonzero, the value of the option's `val' field
354 if the `flag' field is zero.
355
356 The elements of ARGV aren't really const, because we permute them.
357 But we pretend they're const in the prototype to be compatible
358 with other systems.
359
360 LONGOPTS is a vector of `struct option' terminated by an
361 element containing a name which is zero.
362
363 LONGIND returns the index in LONGOPT of the long-named option found.
364 It is only valid when a long-named option has been found by the most
365 recent call.
366
367 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
368 long-named options. */
369
370int
371_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
372 int argc;
373 char *const *argv;
374 const char *optstring;
375 const struct option *longopts;
376 int *longind;
377 int long_only;
378{
379 optarg = NULL;
380
381 if (optind == 0) {
382 optstring = _getopt_initialize (optstring);
383 optind = 1; /* Don't scan ARGV[0], the program name. */
384 }
385
386 if (nextchar == NULL || *nextchar == '\0') {
387 /* Advance to the next ARGV-element. */
388
389 if (ordering == PERMUTE) {
390 /* If we have just processed some options following some non-options,
391 exchange them so that the options come first. */
392
393 if (first_nonopt != last_nonopt && last_nonopt != optind)
394 exchange ((char **) argv);
395 else if (last_nonopt != optind)
396 first_nonopt = optind;
397
398 /* Skip any additional non-options
399 and extend the range of non-options previously skipped. */
400
401 while (optind < argc
402 && (argv[optind][0] != '-' || argv[optind][1] == '\0')) optind++;
403 last_nonopt = optind;
404 }
405
406 /* The special ARGV-element `--' means premature end of options.
407 Skip it like a null option,
408 then exchange with previous non-options as if it were an option,
409 then skip everything else like a non-option. */
410
411 if (optind != argc && !strcmp (argv[optind], "--")) {
412 optind++;
413
414 if (first_nonopt != last_nonopt && last_nonopt != optind)
415 exchange ((char **) argv);
416 else if (first_nonopt == last_nonopt)
417 first_nonopt = optind;
418 last_nonopt = argc;
419
420 optind = argc;
421 }
422
423 /* If we have done all the ARGV-elements, stop the scan
424 and back over any non-options that we skipped and permuted. */
425
426 if (optind == argc) {
427 /* Set the next-arg-index to point at the non-options
428 that we previously skipped, so the caller will digest them. */
429 if (first_nonopt != last_nonopt)
430 optind = first_nonopt;
431 return EOF;
432 }
433
434 /* If we have come to a non-option and did not permute it,
435 either stop the scan or describe it to the caller and pass it by. */
436
437 if ((argv[optind][0] != '-' || argv[optind][1] == '\0')) {
438 if (ordering == REQUIRE_ORDER)
439 return EOF;
440 optarg = argv[optind++];
441 return 1;
442 }
443
444 /* We have found another option-ARGV-element.
445 Skip the initial punctuation. */
446
447 nextchar = (argv[optind] + 1
448 + (longopts != NULL && argv[optind][1] == '-'));
449 }
450
451 /* Decode the current option-ARGV-element. */
452
453 /* Check whether the ARGV-element is a long option.
454
455 If long_only and the ARGV-element has the form "-f", where f is
456 a valid short option, don't consider it an abbreviated form of
457 a long option that starts with f. Otherwise there would be no
458 way to give the -f short option.
459
460 On the other hand, if there's a long option "fubar" and
461 the ARGV-element is "-fu", do consider that an abbreviation of
462 the long option, just like "--fu", and not "-f" with arg "u".
463
464 This distinction seems to be the most useful approach. */
465
466 if (longopts != NULL
467 && (argv[optind][1] == '-'
468 || (long_only
469 && (argv[optind][2]
470 || !my_index (optstring, argv[optind][1]))))) {
471 char *nameend;
472 const struct option *p;
473 const struct option *pfound = NULL;
474 int exact = 0;
475 int ambig = 0;
476 int indfound;
477 int option_index;
478
479 for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
480 /* Do nothing. */ ;
481
482 /* Test all long options for either exact match
483 or abbreviated matches. */
484 for (p = longopts, option_index = 0; p->name; p++, option_index++)
485 if (!strncmp (p->name, nextchar, nameend - nextchar)) {
486 if (nameend - nextchar == strlen (p->name)) {
487 /* Exact match found. */
488 pfound = p;
489 indfound = option_index;
490 exact = 1;
491 break;
492 }
493 else if (pfound == NULL) {
494 /* First nonexact match found. */
495 pfound = p;
496 indfound = option_index;
497 }
498 else
499 /* Second or later nonexact match found. */
500 ambig = 1;
501 }
502
503 if (ambig && !exact) {
504 if (opterr)
505 fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
506 argv[0], argv[optind]);
507 nextchar += strlen (nextchar);
508 optind++;
509 return '?';
510 }
511
512 if (pfound != NULL) {
513 option_index = indfound;
514 optind++;
515 if (*nameend) {
516 /* Don't test has_arg with >, because some C compilers don't
517 allow it to be used on enums. */
518 if (pfound->has_arg)
519 optarg = nameend + 1;
520 else {
521 if (opterr)
522 if (argv[optind - 1][1] == '-')
523 /* --option */
524 fprintf (stderr,
525 _("%s: option `--%s' doesn't allow an argument\n"),
526 argv[0], pfound->name);
527 else
528 /* +option or -option */
529 fprintf (stderr,
530 _("%s: option `%c%s' doesn't allow an argument\n"),
531 argv[0], argv[optind - 1][0], pfound->name);
532
533 nextchar += strlen (nextchar);
534 return '?';
535 }
536 }
537 else if (pfound->has_arg == 1) {
538 if (optind < argc)
539 optarg = argv[optind++];
540 else {
541 if (opterr)
542 fprintf (stderr,
543 _("%s: option `%s' requires an argument\n"),
544 argv[0], argv[optind - 1]);
545 nextchar += strlen (nextchar);
546 return optstring[0] == ':' ? ':' : '?';
547 }
548 }
549 nextchar += strlen (nextchar);
550 if (longind != NULL)
551 *longind = option_index;
552 if (pfound->flag) {
553 *(pfound->flag) = pfound->val;
554 return 0;
555 }
556 return pfound->val;
557 }
558
559 /* Can't find it as a long option. If this is not getopt_long_only,
560 or the option starts with '--' or is not a valid short
561 option, then it's an error.
562 Otherwise interpret it as a short option. */
563 if (!long_only || argv[optind][1] == '-'
564 || my_index (optstring, *nextchar) == NULL) {
565 if (opterr) {
566 if (argv[optind][1] == '-')
567 /* --option */
568 fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
569 argv[0], nextchar);
570 else
571 /* +option or -option */
572 fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
573 argv[0], argv[optind][0], nextchar);
574 }
575 nextchar = (char *) "";
576 optind++;
577 return '?';
578 }
579 }
580
581 /* Look at and handle the next short option-character. */
582
583 {
584 char c = *nextchar++;
585 char *temp = my_index (optstring, c);
586
587 /* Increment `optind' when we start to process its last character. */
588 if (*nextchar == '\0')
589 ++optind;
590
591 if (temp == NULL || c == ':') {
592 if (opterr) {
593 if (posixly_correct)
594 /* 1003.2 specifies the format of this message. */
595 fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
596 else
597 fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c);
598 }
599 optopt = c;
600 return '?';
601 }
602 if (temp[1] == ':') {
603 if (temp[2] == ':') {
604 /* This is an option that accepts an argument optionally. */
605 if (*nextchar != '\0') {
606 optarg = nextchar;
607 optind++;
608 }
609 else
610 optarg = NULL;
611 nextchar = NULL;
612 }
613 else {
614 /* This is an option that requires an argument. */
615 if (*nextchar != '\0') {
616 optarg = nextchar;
617 /* If we end this ARGV-element by taking the rest as an arg,
618 we must advance to the next element now. */
619 optind++;
620 }
621 else if (optind == argc) {
622 if (opterr) {
623 /* 1003.2 specifies the format of this message. */
624 fprintf (stderr,
625 _("%s: option requires an argument -- %c\n"),
626 argv[0], c);
627 }
628 optopt = c;
629 if (optstring[0] == ':')
630 c = ':';
631 else
632 c = '?';
633 }
634 else
635 /* We already incremented `optind' once;
636 increment it again when taking next ARGV-elt as argument. */
637 optarg = argv[optind++];
638 nextchar = NULL;
639 }
640 }
641 return c;
642 }
643}
644
645int
646getopt (argc, argv, optstring)
647 int argc;
648 char *const *argv;
649 const char *optstring;
650{
651 return _getopt_internal (argc, argv, optstring,
652 (const struct option *) 0, (int *) 0, 0);
653}
654
655#endif /* _LIBC or not __GNU_LIBRARY__. */
656
657#ifdef TEST
658
659/* Compile with -DTEST to make an executable for use in testing
660 the above definition of `getopt'. */
661
662int
663main (argc, argv)
664 int argc;
665 char **argv;
666{
667 int c;
668 int digit_optind = 0;
669
670 while (1) {
671 int this_option_optind = optind ? optind : 1;
672
673 c = getopt (argc, argv, "abc:d:0123456789");
674 if (c == EOF)
675 break;
676
677 switch (c) {
678 case '0':
679 case '1':
680 case '2':
681 case '3':
682 case '4':
683 case '5':
684 case '6':
685 case '7':
686 case '8':
687 case '9':
688 if (digit_optind != 0 && digit_optind != this_option_optind)
689 printf ("digits occur in two different argv-elements.\n");
690 digit_optind = this_option_optind;
691 printf ("option %c\n", c);
692 break;
693
694 case 'a':
695 printf ("option a\n");
696 break;
697
698 case 'b':
699 printf ("option b\n");
700 break;
701
702 case 'c':
703 printf ("option c with value `%s'\n", optarg);
704 break;
705
706 case '?':
707 break;
708
709 default:
710 printf ("?? getopt returned character code 0%o ??\n", c);
711 }
712 }
713
714 if (optind < argc) {
715 printf ("non-option ARGV-elements: ");
716 while (optind < argc)
717 printf ("%s ", argv[optind++]);
718 printf ("\n");
719 }
720
721 exit (0);
722}
723
724#endif /* TEST */