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Diffstat (limited to 'pathologist/src/pathologist/getopt.c')
-rw-r--r-- | pathologist/src/pathologist/getopt.c | 1047 |
1 files changed, 1047 insertions, 0 deletions
diff --git a/pathologist/src/pathologist/getopt.c b/pathologist/src/pathologist/getopt.c new file mode 100644 index 0000000..d7a037c --- /dev/null +++ b/pathologist/src/pathologist/getopt.c | |||
@@ -0,0 +1,1047 @@ | |||
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, 96, 97 | ||
7 | Free Software Foundation, Inc. | ||
8 | |||
9 | NOTE: The canonical source of this file is maintained with the GNU C Library. | ||
10 | Bugs can be reported to bug-glibc@prep.ai.mit.edu. | ||
11 | |||
12 | This program is free software; you can redistribute it and/or modify it | ||
13 | under the terms of the GNU General Public License as published by the | ||
14 | Free Software Foundation; either version 2, or (at your option) any | ||
15 | later version. | ||
16 | |||
17 | This program is distributed in the hope that it will be useful, | ||
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
20 | GNU General Public License for more details. | ||
21 | |||
22 | You should have received a copy of the GNU General Public License | ||
23 | along with this program; if not, write to the Free Software | ||
24 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | ||
25 | USA. | ||
26 | |||
27 | |||
28 | This code was heavily modified for GNUnet. | ||
29 | Copyright (C) 2006 Christian Grothoff | ||
30 | */ | ||
31 | |||
32 | /** | ||
33 | * @file util/getopt.c | ||
34 | * @brief GNU style option parsing | ||
35 | * | ||
36 | * TODO: get rid of statics (make reentrant) and | ||
37 | * replace main GNU getopt parser with one that | ||
38 | * actually fits our API. | ||
39 | */ | ||
40 | |||
41 | #include "platform.h" | ||
42 | #include "monkey_common.h" | ||
43 | #include "monkey_getopt_lib.h" | ||
44 | |||
45 | #ifdef VMS | ||
46 | #include <unixlib.h> | ||
47 | #if HAVE_STRING_H - 0 | ||
48 | #include <string.h> | ||
49 | #endif | ||
50 | #endif | ||
51 | |||
52 | #define LOG(kind,...) MONKEY_log_from (kind, "util", __VA_ARGS__) | ||
53 | |||
54 | #define LOG_STRERROR(kind,syscall) MONKEY_log_from_strerror (kind, "util", syscall) | ||
55 | |||
56 | #if defined (WIN32) && !defined (__CYGWIN32__) | ||
57 | /* It's not Unix, really. See? Capital letters. */ | ||
58 | #include <windows.h> | ||
59 | #define getpid() GetCurrentProcessId() | ||
60 | #endif | ||
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 | /* Describe the long-named options requested by the application. | ||
74 | The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector | ||
75 | of `struct GNoption' terminated by an element containing a name which is | ||
76 | zero. | ||
77 | |||
78 | The field `has_arg' is: | ||
79 | no_argument (or 0) if the option does not take an argument, | ||
80 | required_argument (or 1) if the option requires an argument, | ||
81 | optional_argument (or 2) if the option takes an optional argument. | ||
82 | |||
83 | If the field `flag' is not NULL, it points to a variable that is set | ||
84 | to the value given in the field `val' when the option is found, but | ||
85 | left unchanged if the option is not found. | ||
86 | |||
87 | To have a long-named option do something other than set an `int' to | ||
88 | a compiled-in constant, such as set a value from `GNoptarg', set the | ||
89 | option's `flag' field to zero and its `val' field to a nonzero | ||
90 | value (the equivalent single-letter option character, if there is | ||
91 | one). For long options that have a zero `flag' field, `getopt' | ||
92 | returns the contents of the `val' field. */ | ||
93 | |||
94 | struct GNoption | ||
95 | { | ||
96 | const char *name; | ||
97 | /* has_arg can't be an enum because some compilers complain about | ||
98 | * type mismatches in all the code that assumes it is an int. */ | ||
99 | int has_arg; | ||
100 | int *flag; | ||
101 | int val; | ||
102 | }; | ||
103 | |||
104 | |||
105 | /* This version of `getopt' appears to the caller like standard Unix `getopt' | ||
106 | but it behaves differently for the user, since it allows the user | ||
107 | to intersperse the options with the other arguments. | ||
108 | |||
109 | As `getopt' works, it permutes the elements of ARGV so that, | ||
110 | when it is done, all the options precede everything else. Thus | ||
111 | all application programs are extended to handle flexible argument order. | ||
112 | |||
113 | Setting the environment variable POSIXLY_CORRECT disables permutation. | ||
114 | Then the behavior is completely standard. | ||
115 | |||
116 | GNU application programs can use a third alternative mode in which | ||
117 | they can distinguish the relative order of options and other arguments. */ | ||
118 | |||
119 | /* For communication from `getopt' to the caller. | ||
120 | When `getopt' finds an option that takes an argument, | ||
121 | the argument value is returned here. | ||
122 | Also, when `ordering' is RETURN_IN_ORDER, | ||
123 | each non-option ARGV-element is returned here. */ | ||
124 | |||
125 | static char *GNoptarg = NULL; | ||
126 | |||
127 | /* Index in ARGV of the next element to be scanned. | ||
128 | This is used for communication to and from the caller | ||
129 | and for communication between successive calls to `getopt'. | ||
130 | |||
131 | On entry to `getopt', zero means this is the first call; initialize. | ||
132 | |||
133 | When `getopt' returns -1, this is the index of the first of the | ||
134 | non-option elements that the caller should itself scan. | ||
135 | |||
136 | Otherwise, `GNoptind' communicates from one call to the next | ||
137 | how much of ARGV has been scanned so far. */ | ||
138 | |||
139 | /* 1003.2 says this must be 1 before any call. */ | ||
140 | static int GNoptind = 1; | ||
141 | |||
142 | /* The next char to be scanned in the option-element | ||
143 | in which the last option character we returned was found. | ||
144 | This allows us to pick up the scan where we left off. | ||
145 | |||
146 | If this is zero, or a null string, it means resume the scan | ||
147 | by advancing to the next ARGV-element. */ | ||
148 | |||
149 | static char *nextchar; | ||
150 | |||
151 | |||
152 | /* Describe how to deal with options that follow non-option ARGV-elements. | ||
153 | |||
154 | If the caller did not specify anything, | ||
155 | the default is REQUIRE_ORDER if the environment variable | ||
156 | POSIXLY_CORRECT is defined, PERMUTE otherwise. | ||
157 | |||
158 | REQUIRE_ORDER means don't recognize them as options; | ||
159 | stop option processing when the first non-option is seen. | ||
160 | This is what Unix does. | ||
161 | This mode of operation is selected by either setting the environment | ||
162 | variable POSIXLY_CORRECT, or using `+' as the first character | ||
163 | of the list of option characters. | ||
164 | |||
165 | PERMUTE is the default. We MONKEY_CRYPTO_random_permute the contents of ARGV as we scan, | ||
166 | so that eventually all the non-options are at the end. This allows options | ||
167 | to be given in any order, even with programs that were not written to | ||
168 | expect this. | ||
169 | |||
170 | RETURN_IN_ORDER is an option available to programs that were written | ||
171 | to expect GNoptions and other ARGV-elements in any order and that care about | ||
172 | the ordering of the two. We describe each non-option ARGV-element | ||
173 | as if it were the argument of an option with character code 1. | ||
174 | Using `-' as the first character of the list of option characters | ||
175 | selects this mode of operation. | ||
176 | |||
177 | The special argument `--' forces an end of option-scanning regardless | ||
178 | of the value of `ordering'. In the case of RETURN_IN_ORDER, only | ||
179 | `--' can cause `getopt' to return -1 with `GNoptind' != ARGC. */ | ||
180 | |||
181 | static enum | ||
182 | { | ||
183 | REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER | ||
184 | } ordering; | ||
185 | |||
186 | /* Value of POSIXLY_CORRECT environment variable. */ | ||
187 | static char *posixly_correct; | ||
188 | |||
189 | #ifdef __GNU_LIBRARY__ | ||
190 | /* We want to avoid inclusion of string.h with non-GNU libraries | ||
191 | because there are many ways it can cause trouble. | ||
192 | On some systems, it contains special magic macros that don't work | ||
193 | in GCC. */ | ||
194 | #include <string.h> | ||
195 | #define my_index strchr | ||
196 | #else | ||
197 | |||
198 | /* Avoid depending on library functions or files | ||
199 | whose names are inconsistent. */ | ||
200 | |||
201 | char * | ||
202 | getenv (); | ||
203 | |||
204 | static char * | ||
205 | my_index (const char *str, | ||
206 | int chr) | ||
207 | { | ||
208 | while (*str) | ||
209 | { | ||
210 | if (*str == chr) | ||
211 | return (char *) str; | ||
212 | str++; | ||
213 | } | ||
214 | return 0; | ||
215 | } | ||
216 | |||
217 | /* If using GCC, we can safely declare strlen this way. | ||
218 | If not using GCC, it is ok not to declare it. */ | ||
219 | #ifdef __GNUC__ | ||
220 | /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h. | ||
221 | That was relevant to code that was here before. */ | ||
222 | #if !defined (__STDC__) || !__STDC__ | ||
223 | /* gcc with -traditional declares the built-in strlen to return int, | ||
224 | and has done so at least since version 2.4.5. -- rms. */ | ||
225 | extern int | ||
226 | strlen (const char *); | ||
227 | #endif /* not __STDC__ */ | ||
228 | #endif /* __GNUC__ */ | ||
229 | |||
230 | #endif /* not __GNU_LIBRARY__ */ | ||
231 | |||
232 | /* Handle permutation of arguments. */ | ||
233 | |||
234 | /* Describe the part of ARGV that contains non-options that have | ||
235 | been skipped. `first_nonopt' is the index in ARGV of the first of them; | ||
236 | `last_nonopt' is the index after the last of them. */ | ||
237 | |||
238 | static int first_nonopt; | ||
239 | static int last_nonopt; | ||
240 | |||
241 | #ifdef _LIBC | ||
242 | /* Bash 2.0 gives us an environment variable containing flags | ||
243 | indicating ARGV elements that should not be considered arguments. */ | ||
244 | |||
245 | /* Defined in getopt_init.c */ | ||
246 | extern char *__getopt_nonoption_flags; | ||
247 | |||
248 | static int nonoption_flags_max_len; | ||
249 | static int nonoption_flags_len; | ||
250 | |||
251 | static int original_argc; | ||
252 | static char *const *original_argv; | ||
253 | |||
254 | extern pid_t __libc_pid; | ||
255 | |||
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. */ | ||
259 | static void MONKEY_UNUSED | ||
260 | store_args_and_env (int argc, char *const *argv) | ||
261 | { | ||
262 | /* XXX This is no good solution. We should rather copy the args so | ||
263 | * that we can compare them later. But we must not use malloc(3). */ | ||
264 | original_argc = argc; | ||
265 | original_argv = argv; | ||
266 | } | ||
267 | |||
268 | text_set_element (__libc_subinit, store_args_and_env); | ||
269 | |||
270 | #define SWAP_FLAGS(ch1, ch2) \ | ||
271 | if (nonoption_flags_len > 0) \ | ||
272 | { \ | ||
273 | char __tmp = __getopt_nonoption_flags[ch1]; \ | ||
274 | __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \ | ||
275 | __getopt_nonoption_flags[ch2] = __tmp; \ | ||
276 | } | ||
277 | #else /* !_LIBC */ | ||
278 | #define SWAP_FLAGS(ch1, ch2) | ||
279 | #endif /* _LIBC */ | ||
280 | |||
281 | /* Exchange two adjacent subsequences of ARGV. | ||
282 | One subsequence is elements [first_nonopt,last_nonopt) | ||
283 | which contains all the non-options that have been skipped so far. | ||
284 | The other is elements [last_nonopt,GNoptind), which contains all | ||
285 | the options processed since those non-options were skipped. | ||
286 | |||
287 | `first_nonopt' and `last_nonopt' are relocated so that they describe | ||
288 | the new indices of the non-options in ARGV after they are moved. */ | ||
289 | |||
290 | #if defined (__STDC__) && __STDC__ | ||
291 | static void | ||
292 | exchange (char **); | ||
293 | #endif | ||
294 | |||
295 | static void | ||
296 | exchange (char **argv) | ||
297 | { | ||
298 | int bottom = first_nonopt; | ||
299 | int middle = last_nonopt; | ||
300 | int top = GNoptind; | ||
301 | char *tem; | ||
302 | |||
303 | /* Exchange the shorter segment with the far end of the longer segment. | ||
304 | * That puts the shorter segment into the right place. | ||
305 | * It leaves the longer segment in the right place overall, | ||
306 | * but it consists of two parts that need to be swapped next. */ | ||
307 | |||
308 | #ifdef _LIBC | ||
309 | /* First make sure the handling of the `__getopt_nonoption_flags' | ||
310 | * string can work normally. Our top argument must be in the range | ||
311 | * of the string. */ | ||
312 | if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len) | ||
313 | { | ||
314 | /* We must extend the array. The user plays games with us and | ||
315 | * presents new arguments. */ | ||
316 | char *new_str = malloc (top + 1); | ||
317 | |||
318 | if (new_str == NULL) | ||
319 | nonoption_flags_len = nonoption_flags_max_len = 0; | ||
320 | else | ||
321 | { | ||
322 | memcpy (new_str, __getopt_nonoption_flags, nonoption_flags_max_len); | ||
323 | memset (&new_str[nonoption_flags_max_len], '\0', | ||
324 | top + 1 - nonoption_flags_max_len); | ||
325 | nonoption_flags_max_len = top + 1; | ||
326 | __getopt_nonoption_flags = new_str; | ||
327 | } | ||
328 | } | ||
329 | #endif | ||
330 | |||
331 | while (top > middle && middle > bottom) | ||
332 | { | ||
333 | if (top - middle > middle - bottom) | ||
334 | { | ||
335 | /* Bottom segment is the short one. */ | ||
336 | int len = middle - bottom; | ||
337 | register int i; | ||
338 | |||
339 | /* Swap it with the top part of the top segment. */ | ||
340 | for (i = 0; i < len; i++) | ||
341 | { | ||
342 | tem = argv[bottom + i]; | ||
343 | argv[bottom + i] = argv[top - (middle - bottom) + i]; | ||
344 | argv[top - (middle - bottom) + i] = tem; | ||
345 | SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); | ||
346 | } | ||
347 | /* Exclude the moved bottom segment from further swapping. */ | ||
348 | top -= len; | ||
349 | } | ||
350 | else | ||
351 | { | ||
352 | /* Top segment is the short one. */ | ||
353 | int len = top - middle; | ||
354 | register int i; | ||
355 | |||
356 | /* Swap it with the bottom part of the bottom segment. */ | ||
357 | for (i = 0; i < len; i++) | ||
358 | { | ||
359 | tem = argv[bottom + i]; | ||
360 | argv[bottom + i] = argv[middle + i]; | ||
361 | argv[middle + i] = tem; | ||
362 | SWAP_FLAGS (bottom + i, middle + i); | ||
363 | } | ||
364 | /* Exclude the moved top segment from further swapping. */ | ||
365 | bottom += len; | ||
366 | } | ||
367 | } | ||
368 | |||
369 | /* Update records for the slots the non-options now occupy. */ | ||
370 | |||
371 | first_nonopt += (GNoptind - last_nonopt); | ||
372 | last_nonopt = GNoptind; | ||
373 | } | ||
374 | |||
375 | /* Initialize the internal data when the first call is made. */ | ||
376 | |||
377 | #if defined (__STDC__) && __STDC__ | ||
378 | static const char * | ||
379 | _getopt_initialize (int, char *const *, const char *); | ||
380 | #endif | ||
381 | static const char * | ||
382 | _getopt_initialize (int argc, | ||
383 | char *const *argv, | ||
384 | const char *optstring) | ||
385 | { | ||
386 | /* Start processing options with ARGV-element 1 (since ARGV-element 0 | ||
387 | * is the program name); the sequence of previously skipped | ||
388 | * non-option ARGV-elements is empty. */ | ||
389 | |||
390 | first_nonopt = last_nonopt = GNoptind; | ||
391 | |||
392 | nextchar = NULL; | ||
393 | |||
394 | posixly_correct = getenv ("POSIXLY_CORRECT"); | ||
395 | |||
396 | /* Determine how to handle the ordering of options and nonoptions. */ | ||
397 | |||
398 | if (optstring[0] == '-') | ||
399 | { | ||
400 | ordering = RETURN_IN_ORDER; | ||
401 | ++optstring; | ||
402 | } | ||
403 | else if (optstring[0] == '+') | ||
404 | { | ||
405 | ordering = REQUIRE_ORDER; | ||
406 | ++optstring; | ||
407 | } | ||
408 | else if (posixly_correct != NULL) | ||
409 | ordering = REQUIRE_ORDER; | ||
410 | else | ||
411 | ordering = PERMUTE; | ||
412 | |||
413 | #ifdef _LIBC | ||
414 | if (posixly_correct == NULL && argc == original_argc && argv == original_argv) | ||
415 | { | ||
416 | if (nonoption_flags_max_len == 0) | ||
417 | { | ||
418 | if (__getopt_nonoption_flags == NULL || | ||
419 | __getopt_nonoption_flags[0] == '\0') | ||
420 | nonoption_flags_max_len = -1; | ||
421 | else | ||
422 | { | ||
423 | const char *orig_str = __getopt_nonoption_flags; | ||
424 | int len = nonoption_flags_max_len = strlen (orig_str); | ||
425 | |||
426 | if (nonoption_flags_max_len < argc) | ||
427 | nonoption_flags_max_len = argc; | ||
428 | __getopt_nonoption_flags = (char *) malloc (nonoption_flags_max_len); | ||
429 | if (__getopt_nonoption_flags == NULL) | ||
430 | nonoption_flags_max_len = -1; | ||
431 | else | ||
432 | { | ||
433 | memcpy (__getopt_nonoption_flags, orig_str, len); | ||
434 | memset (&__getopt_nonoption_flags[len], '\0', | ||
435 | nonoption_flags_max_len - len); | ||
436 | } | ||
437 | } | ||
438 | } | ||
439 | nonoption_flags_len = nonoption_flags_max_len; | ||
440 | } | ||
441 | else | ||
442 | nonoption_flags_len = 0; | ||
443 | #endif | ||
444 | |||
445 | return optstring; | ||
446 | } | ||
447 | |||
448 | /* Scan elements of ARGV (whose length is ARGC) for option characters | ||
449 | given in OPTSTRING. | ||
450 | |||
451 | If an element of ARGV starts with '-', and is not exactly "-" or "--", | ||
452 | then it is an option element. The characters of this element | ||
453 | (aside from the initial '-') are option characters. If `getopt' | ||
454 | is called repeatedly, it returns successively each of the option characters | ||
455 | from each of the option elements. | ||
456 | |||
457 | If `getopt' finds another option character, it returns that character, | ||
458 | updating `GNoptind' and `nextchar' so that the next call to `getopt' can | ||
459 | resume the scan with the following option character or ARGV-element. | ||
460 | |||
461 | If there are no more option characters, `getopt' returns -1. | ||
462 | Then `GNoptind' is the index in ARGV of the first ARGV-element | ||
463 | that is not an option. (The ARGV-elements have been permuted | ||
464 | so that those that are not options now come last.) | ||
465 | |||
466 | OPTSTRING is a string containing the legitimate option characters. | ||
467 | If an option character is seen that is not listed in OPTSTRING, | ||
468 | return '?' after printing an error message. If you set `GNopterr' to | ||
469 | zero, the error message is suppressed but we still return '?'. | ||
470 | |||
471 | If a char in OPTSTRING is followed by a colon, that means it wants an arg, | ||
472 | so the following text in the same ARGV-element, or the text of the following | ||
473 | ARGV-element, is returned in `GNoptarg'. Two colons mean an option that | ||
474 | wants an optional arg; if there is text in the current ARGV-element, | ||
475 | it is returned in `GNoptarg', otherwise `GNoptarg' is set to zero. | ||
476 | |||
477 | If OPTSTRING starts with `-' or `+', it requests different methods of | ||
478 | handling the non-option ARGV-elements. | ||
479 | See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. | ||
480 | |||
481 | Long-named options begin with `--' instead of `-'. | ||
482 | Their names may be abbreviated as long as the abbreviation is unique | ||
483 | or is an exact match for some defined option. If they have an | ||
484 | argument, it follows the option name in the same ARGV-element, separated | ||
485 | from the option name by a `=', or else the in next ARGV-element. | ||
486 | When `getopt' finds a long-named option, it returns 0 if that option's | ||
487 | `flag' field is nonzero, the value of the option's `val' field | ||
488 | if the `flag' field is zero. | ||
489 | |||
490 | The elements of ARGV aren't really const, because we MONKEY_CRYPTO_random_permute them. | ||
491 | But we pretend they're const in the prototype to be compatible | ||
492 | with other systems. | ||
493 | |||
494 | LONGOPTS is a vector of `struct GNoption' terminated by an | ||
495 | element containing a name which is zero. | ||
496 | |||
497 | LONGIND returns the index in LONGOPT of the long-named option found. | ||
498 | It is only valid when a long-named option has been found by the most | ||
499 | recent call. | ||
500 | |||
501 | If LONG_ONLY is nonzero, '-' as well as '--' can introduce | ||
502 | long-named options. */ | ||
503 | |||
504 | static int | ||
505 | GN_getopt_internal (int argc, char *const *argv, const char *optstring, | ||
506 | const struct GNoption *longopts, int *longind, | ||
507 | int long_only) | ||
508 | { | ||
509 | static int __getopt_initialized = 0; | ||
510 | static int GNopterr = 1; | ||
511 | |||
512 | GNoptarg = NULL; | ||
513 | |||
514 | if (GNoptind == 0 || !__getopt_initialized) | ||
515 | { | ||
516 | if (GNoptind == 0) | ||
517 | GNoptind = 1; /* Don't scan ARGV[0], the program name. */ | ||
518 | optstring = _getopt_initialize (argc, argv, optstring); | ||
519 | __getopt_initialized = 1; | ||
520 | } | ||
521 | |||
522 | /* Test whether ARGV[GNoptind] 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. */ | ||
526 | #ifdef _LIBC | ||
527 | #define NONOPTION_P (argv[GNoptind][0] != '-' || argv[GNoptind][1] == '\0' \ | ||
528 | || (GNoptind < nonoption_flags_len \ | ||
529 | && __getopt_nonoption_flags[GNoptind] == '1')) | ||
530 | #else | ||
531 | #define NONOPTION_P (argv[GNoptind][0] != '-' || argv[GNoptind][1] == '\0') | ||
532 | #endif | ||
533 | |||
534 | if (nextchar == NULL || *nextchar == '\0') | ||
535 | { | ||
536 | /* Advance to the next ARGV-element. */ | ||
537 | |||
538 | /* Give FIRST_NONOPT & LAST_NONOPT rational values if GNoptind has been | ||
539 | * moved back by the user (who may also have changed the arguments). */ | ||
540 | if (last_nonopt > GNoptind) | ||
541 | last_nonopt = GNoptind; | ||
542 | if (first_nonopt > GNoptind) | ||
543 | first_nonopt = GNoptind; | ||
544 | |||
545 | if (ordering == PERMUTE) | ||
546 | { | ||
547 | /* If we have just processed some options following some non-options, | ||
548 | * exchange them so that the options come first. */ | ||
549 | |||
550 | if (first_nonopt != last_nonopt && last_nonopt != GNoptind) | ||
551 | exchange ((char **) argv); | ||
552 | else if (last_nonopt != GNoptind) | ||
553 | first_nonopt = GNoptind; | ||
554 | |||
555 | /* Skip any additional non-options | ||
556 | * and extend the range of non-options previously skipped. */ | ||
557 | |||
558 | while (GNoptind < argc && NONOPTION_P) | ||
559 | GNoptind++; | ||
560 | last_nonopt = GNoptind; | ||
561 | } | ||
562 | |||
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. */ | ||
567 | if (GNoptind != argc && !strcmp (argv[GNoptind], "--")) | ||
568 | { | ||
569 | GNoptind++; | ||
570 | |||
571 | if (first_nonopt != last_nonopt && last_nonopt != GNoptind) | ||
572 | exchange ((char **) argv); | ||
573 | else if (first_nonopt == last_nonopt) | ||
574 | first_nonopt = GNoptind; | ||
575 | last_nonopt = argc; | ||
576 | |||
577 | GNoptind = argc; | ||
578 | } | ||
579 | |||
580 | /* If we have done all the ARGV-elements, stop the scan | ||
581 | * and back over any non-options that we skipped and permuted. */ | ||
582 | |||
583 | if (GNoptind == argc) | ||
584 | { | ||
585 | /* Set the next-arg-index to point at the non-options | ||
586 | * that we previously skipped, so the caller will digest them. */ | ||
587 | if (first_nonopt != last_nonopt) | ||
588 | GNoptind = first_nonopt; | ||
589 | return -1; | ||
590 | } | ||
591 | |||
592 | /* If we have come to a non-option and did not permute it, | ||
593 | * either stop the scan or describe it to the caller and pass it by. */ | ||
594 | |||
595 | if (NONOPTION_P) | ||
596 | { | ||
597 | if (ordering == REQUIRE_ORDER) | ||
598 | return -1; | ||
599 | GNoptarg = argv[GNoptind++]; | ||
600 | return 1; | ||
601 | } | ||
602 | |||
603 | /* We have found another option-ARGV-element. | ||
604 | * Skip the initial punctuation. */ | ||
605 | |||
606 | nextchar = | ||
607 | (argv[GNoptind] + 1 + (longopts != NULL && argv[GNoptind][1] == '-')); | ||
608 | } | ||
609 | |||
610 | /* Decode the current option-ARGV-element. */ | ||
611 | |||
612 | /* Check whether the ARGV-element is a long option. | ||
613 | * | ||
614 | * If long_only and the ARGV-element has the form "-f", where f is | ||
615 | * a valid short option, don't consider it an abbreviated form of | ||
616 | * a long option that starts with f. Otherwise there would be no | ||
617 | * way to give the -f short option. | ||
618 | * | ||
619 | * On the other hand, if there's a long option "fubar" and | ||
620 | * the ARGV-element is "-fu", do consider that an abbreviation of | ||
621 | * the long option, just like "--fu", and not "-f" with arg "u". | ||
622 | * | ||
623 | * This distinction seems to be the most useful approach. */ | ||
624 | |||
625 | if (longopts != NULL && | ||
626 | (argv[GNoptind][1] == '-' || | ||
627 | (long_only && | ||
628 | (argv[GNoptind][2] || !my_index (optstring, argv[GNoptind][1]))))) | ||
629 | { | ||
630 | char *nameend; | ||
631 | const struct GNoption *p; | ||
632 | const struct GNoption *pfound = NULL; | ||
633 | int exact = 0; | ||
634 | int ambig = 0; | ||
635 | int indfound = -1; | ||
636 | int option_index; | ||
637 | |||
638 | for (nameend = nextchar; *nameend && *nameend != '='; nameend++) | ||
639 | /* Do nothing. */ ; | ||
640 | |||
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)) | ||
645 | { | ||
646 | if ((unsigned int) (nameend - nextchar) == | ||
647 | (unsigned int) strlen (p->name)) | ||
648 | { | ||
649 | /* Exact match found. */ | ||
650 | pfound = p; | ||
651 | indfound = option_index; | ||
652 | exact = 1; | ||
653 | break; | ||
654 | } | ||
655 | else if (pfound == NULL) | ||
656 | { | ||
657 | /* First nonexact match found. */ | ||
658 | pfound = p; | ||
659 | indfound = option_index; | ||
660 | } | ||
661 | else | ||
662 | /* Second or later nonexact match found. */ | ||
663 | ambig = 1; | ||
664 | } | ||
665 | |||
666 | if (ambig && !exact) | ||
667 | { | ||
668 | if (GNopterr) | ||
669 | FPRINTF (stderr, _("%s: option `%s' is ambiguous\n"), argv[0], | ||
670 | argv[GNoptind]); | ||
671 | nextchar += strlen (nextchar); | ||
672 | GNoptind++; | ||
673 | return '?'; | ||
674 | } | ||
675 | |||
676 | if (pfound != NULL) | ||
677 | { | ||
678 | option_index = indfound; | ||
679 | GNoptind++; | ||
680 | if (*nameend) | ||
681 | { | ||
682 | /* Don't test has_arg with >, because some C compilers don't | ||
683 | * allow it to be used on enums. */ | ||
684 | if (pfound->has_arg) | ||
685 | GNoptarg = nameend + 1; | ||
686 | else | ||
687 | { | ||
688 | if (GNopterr) | ||
689 | { | ||
690 | if (argv[GNoptind - 1][1] == '-') | ||
691 | /* --option */ | ||
692 | FPRINTF (stderr, | ||
693 | _("%s: option `--%s' does not allow an argument\n"), | ||
694 | argv[0], pfound->name); | ||
695 | else | ||
696 | /* +option or -option */ | ||
697 | FPRINTF (stderr, | ||
698 | _("%s: option `%c%s' does not allow an argument\n"), | ||
699 | argv[0], argv[GNoptind - 1][0], pfound->name); | ||
700 | } | ||
701 | nextchar += strlen (nextchar); | ||
702 | return '?'; | ||
703 | } | ||
704 | } | ||
705 | else if (pfound->has_arg == 1) | ||
706 | { | ||
707 | if (GNoptind < argc) | ||
708 | { | ||
709 | GNoptarg = argv[GNoptind++]; | ||
710 | } | ||
711 | else | ||
712 | { | ||
713 | if (GNopterr) | ||
714 | { | ||
715 | FPRINTF (stderr, _("%s: option `%s' requires an argument\n"), | ||
716 | argv[0], argv[GNoptind - 1]); | ||
717 | } | ||
718 | nextchar += strlen (nextchar); | ||
719 | return (optstring[0] == ':') ? ':' : '?'; | ||
720 | } | ||
721 | } | ||
722 | nextchar += strlen (nextchar); | ||
723 | if (longind != NULL) | ||
724 | *longind = option_index; | ||
725 | if (pfound->flag) | ||
726 | { | ||
727 | *(pfound->flag) = pfound->val; | ||
728 | return 0; | ||
729 | } | ||
730 | return pfound->val; | ||
731 | } | ||
732 | |||
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[GNoptind][1] == '-' || | ||
738 | my_index (optstring, *nextchar) == NULL) | ||
739 | { | ||
740 | if (GNopterr) | ||
741 | { | ||
742 | if (argv[GNoptind][1] == '-') | ||
743 | /* --option */ | ||
744 | FPRINTF (stderr, _("%s: unrecognized option `--%s'\n"), argv[0], | ||
745 | nextchar); | ||
746 | else | ||
747 | /* +option or -option */ | ||
748 | FPRINTF (stderr, _("%s: unrecognized option `%c%s'\n"), argv[0], | ||
749 | argv[GNoptind][0], nextchar); | ||
750 | } | ||
751 | nextchar = (char *) ""; | ||
752 | GNoptind++; | ||
753 | return '?'; | ||
754 | } | ||
755 | } | ||
756 | |||
757 | /* Look at and handle the next short option-character. */ | ||
758 | |||
759 | { | ||
760 | char c = *nextchar++; | ||
761 | char *temp = my_index (optstring, c); | ||
762 | |||
763 | /* Increment `GNoptind' when we start to process its last character. */ | ||
764 | if (*nextchar == '\0') | ||
765 | ++GNoptind; | ||
766 | |||
767 | if (temp == NULL || c == ':') | ||
768 | { | ||
769 | if (GNopterr) | ||
770 | { | ||
771 | if (posixly_correct) | ||
772 | /* 1003.2 specifies the format of this message. */ | ||
773 | FPRINTF (stderr, _("%s: illegal option -- %c\n"), argv[0], c); | ||
774 | else | ||
775 | FPRINTF (stderr, _("%s: invalid option -- %c\n"), argv[0], c); | ||
776 | } | ||
777 | return '?'; | ||
778 | } | ||
779 | /* Convenience. Treat POSIX -W foo same as long option --foo */ | ||
780 | if (temp[0] == 'W' && temp[1] == ';') | ||
781 | { | ||
782 | char *nameend; | ||
783 | const struct GNoption *p; | ||
784 | const struct GNoption *pfound = NULL; | ||
785 | int exact = 0; | ||
786 | int ambig = 0; | ||
787 | int indfound = 0; | ||
788 | int option_index; | ||
789 | |||
790 | /* This is an option that requires an argument. */ | ||
791 | if (*nextchar != '\0') | ||
792 | { | ||
793 | GNoptarg = nextchar; | ||
794 | /* If we end this ARGV-element by taking the rest as an arg, | ||
795 | * we must advance to the next element now. */ | ||
796 | GNoptind++; | ||
797 | } | ||
798 | else if (GNoptind == argc) | ||
799 | { | ||
800 | if (GNopterr) | ||
801 | { | ||
802 | /* 1003.2 specifies the format of this message. */ | ||
803 | FPRINTF (stderr, _("%s: option requires an argument -- %c\n"), | ||
804 | argv[0], c); | ||
805 | } | ||
806 | if (optstring[0] == ':') | ||
807 | c = ':'; | ||
808 | else | ||
809 | c = '?'; | ||
810 | return c; | ||
811 | } | ||
812 | else | ||
813 | /* We already incremented `GNoptind' once; | ||
814 | * increment it again when taking next ARGV-elt as argument. */ | ||
815 | GNoptarg = argv[GNoptind++]; | ||
816 | |||
817 | /* GNoptarg is now the argument, see if it's in the | ||
818 | * table of longopts. */ | ||
819 | |||
820 | for (nextchar = nameend = GNoptarg; *nameend && *nameend != '='; | ||
821 | nameend++) | ||
822 | /* Do nothing. */ ; | ||
823 | |||
824 | /* Test all long options for either exact match | ||
825 | * or abbreviated matches. */ | ||
826 | if (longopts != NULL) | ||
827 | for (p = longopts, option_index = 0; p->name; p++, option_index++) | ||
828 | if (!strncmp (p->name, nextchar, nameend - nextchar)) | ||
829 | { | ||
830 | if ((unsigned int) (nameend - nextchar) == strlen (p->name)) | ||
831 | { | ||
832 | /* Exact match found. */ | ||
833 | pfound = p; | ||
834 | indfound = option_index; | ||
835 | exact = 1; | ||
836 | break; | ||
837 | } | ||
838 | else if (pfound == NULL) | ||
839 | { | ||
840 | /* First nonexact match found. */ | ||
841 | pfound = p; | ||
842 | indfound = option_index; | ||
843 | } | ||
844 | else | ||
845 | /* Second or later nonexact match found. */ | ||
846 | ambig = 1; | ||
847 | } | ||
848 | if (ambig && !exact) | ||
849 | { | ||
850 | if (GNopterr) | ||
851 | FPRINTF (stderr, _("%s: option `-W %s' is ambiguous\n"), argv[0], | ||
852 | argv[GNoptind]); | ||
853 | nextchar += strlen (nextchar); | ||
854 | GNoptind++; | ||
855 | return '?'; | ||
856 | } | ||
857 | if (pfound != NULL) | ||
858 | { | ||
859 | option_index = indfound; | ||
860 | if (*nameend) | ||
861 | { | ||
862 | /* Don't test has_arg with >, because some C compilers don't | ||
863 | * allow it to be used on enums. */ | ||
864 | if (pfound->has_arg) | ||
865 | GNoptarg = nameend + 1; | ||
866 | else | ||
867 | { | ||
868 | if (GNopterr) | ||
869 | FPRINTF (stderr, _("\ | ||
870 | %s: option `-W %s' does not allow an argument\n"), argv[0], pfound->name); | ||
871 | |||
872 | nextchar += strlen (nextchar); | ||
873 | return '?'; | ||
874 | } | ||
875 | } | ||
876 | else if (pfound->has_arg == 1) | ||
877 | { | ||
878 | if (GNoptind < argc) | ||
879 | GNoptarg = argv[GNoptind++]; | ||
880 | else | ||
881 | { | ||
882 | if (GNopterr) | ||
883 | FPRINTF (stderr, _("%s: option `%s' requires an argument\n"), | ||
884 | argv[0], argv[GNoptind - 1]); | ||
885 | nextchar += strlen (nextchar); | ||
886 | return optstring[0] == ':' ? ':' : '?'; | ||
887 | } | ||
888 | } | ||
889 | nextchar += strlen (nextchar); | ||
890 | if (longind != NULL) | ||
891 | *longind = option_index; | ||
892 | if (pfound->flag) | ||
893 | { | ||
894 | *(pfound->flag) = pfound->val; | ||
895 | return 0; | ||
896 | } | ||
897 | return pfound->val; | ||
898 | } | ||
899 | nextchar = NULL; | ||
900 | return 'W'; /* Let the application handle it. */ | ||
901 | } | ||
902 | if (temp[1] == ':') | ||
903 | { | ||
904 | if (temp[2] == ':') | ||
905 | { | ||
906 | /* This is an option that accepts an argument optionally. */ | ||
907 | if (*nextchar != '\0') | ||
908 | { | ||
909 | GNoptarg = nextchar; | ||
910 | GNoptind++; | ||
911 | } | ||
912 | else | ||
913 | GNoptarg = NULL; | ||
914 | nextchar = NULL; | ||
915 | } | ||
916 | else | ||
917 | { | ||
918 | /* This is an option that requires an argument. */ | ||
919 | if (*nextchar != '\0') | ||
920 | { | ||
921 | GNoptarg = nextchar; | ||
922 | /* If we end this ARGV-element by taking the rest as an arg, | ||
923 | * we must advance to the next element now. */ | ||
924 | GNoptind++; | ||
925 | } | ||
926 | else if (GNoptind == argc) | ||
927 | { | ||
928 | if (GNopterr) | ||
929 | { | ||
930 | /* 1003.2 specifies the format of this message. */ | ||
931 | FPRINTF (stderr, _("%s: option requires an argument -- %c\n"), | ||
932 | argv[0], c); | ||
933 | } | ||
934 | if (optstring[0] == ':') | ||
935 | c = ':'; | ||
936 | else | ||
937 | c = '?'; | ||
938 | } | ||
939 | else | ||
940 | /* We already incremented `GNoptind' once; | ||
941 | * increment it again when taking next ARGV-elt as argument. */ | ||
942 | GNoptarg = argv[GNoptind++]; | ||
943 | nextchar = NULL; | ||
944 | } | ||
945 | } | ||
946 | return c; | ||
947 | } | ||
948 | } | ||
949 | |||
950 | static int | ||
951 | GNgetopt_long (int argc, char *const *argv, const char *options, | ||
952 | const struct GNoption *long_options, int *opt_index) | ||
953 | { | ||
954 | return GN_getopt_internal (argc, argv, options, long_options, opt_index, 0); | ||
955 | } | ||
956 | |||
957 | /* ******************** now the GNUnet specific modifications... ********************* */ | ||
958 | |||
959 | /** | ||
960 | * Parse the command line. | ||
961 | * | ||
962 | * @param binaryOptions Name of application with option summary | ||
963 | * @param allOptions defined options and handlers | ||
964 | * @param argc number of arguments | ||
965 | * @param argv actual arguments | ||
966 | * @return index into argv with first non-option | ||
967 | * argument, or -1 on error | ||
968 | */ | ||
969 | int | ||
970 | MONKEY_GETOPT_run (const char *binaryOptions, | ||
971 | const struct MONKEY_GETOPT_CommandLineOption *allOptions, | ||
972 | unsigned int argc, char *const *argv) | ||
973 | { | ||
974 | struct GNoption *long_options; | ||
975 | struct MONKEY_GETOPT_CommandLineProcessorContext clpc; | ||
976 | int count; | ||
977 | int i; | ||
978 | char *shorts; | ||
979 | int spos; | ||
980 | int cont; | ||
981 | int c; | ||
982 | |||
983 | // MONKEY_assert (argc > 0); | ||
984 | GNoptind = 0; | ||
985 | clpc.binaryName = argv[0]; | ||
986 | clpc.binaryOptions = binaryOptions; | ||
987 | clpc.allOptions = allOptions; | ||
988 | clpc.argv = argv; | ||
989 | clpc.argc = argc; | ||
990 | count = 0; | ||
991 | while (allOptions[count].name != NULL) | ||
992 | count++; | ||
993 | long_options = malloc (sizeof (struct GNoption) * (count + 1)); | ||
994 | shorts = malloc (count * 2 + 1); | ||
995 | spos = 0; | ||
996 | for (i = 0; i < count; i++) | ||
997 | { | ||
998 | long_options[i].name = allOptions[i].name; | ||
999 | long_options[i].has_arg = allOptions[i].require_argument; | ||
1000 | long_options[i].flag = NULL; | ||
1001 | long_options[i].val = allOptions[i].shortName; | ||
1002 | shorts[spos++] = allOptions[i].shortName; | ||
1003 | if (allOptions[i].require_argument != 0) | ||
1004 | shorts[spos++] = ':'; | ||
1005 | } | ||
1006 | long_options[count].name = NULL; | ||
1007 | long_options[count].has_arg = 0; | ||
1008 | long_options[count].flag = NULL; | ||
1009 | long_options[count].val = '\0'; | ||
1010 | shorts[spos] = '\0'; | ||
1011 | cont = MONKEY_OK; | ||
1012 | /* main getopt loop */ | ||
1013 | while (cont == MONKEY_OK) | ||
1014 | { | ||
1015 | int option_index = 0; | ||
1016 | |||
1017 | c = GNgetopt_long (argc, argv, shorts, long_options, &option_index); | ||
1018 | |||
1019 | if (c == MONKEY_SYSERR) | ||
1020 | break; /* No more flags to process */ | ||
1021 | |||
1022 | for (i = 0; i < count; i++) | ||
1023 | { | ||
1024 | clpc.currentArgument = GNoptind - 1; | ||
1025 | if ((char) c == allOptions[i].shortName) | ||
1026 | { | ||
1027 | cont = | ||
1028 | allOptions[i].processor (&clpc, allOptions[i].scls, | ||
1029 | allOptions[i].name, GNoptarg); | ||
1030 | break; | ||
1031 | } | ||
1032 | } | ||
1033 | if (i == count) | ||
1034 | { | ||
1035 | FPRINTF (stderr, _("Use %s to get a list of options.\n"), "--help"); | ||
1036 | cont = MONKEY_SYSERR; | ||
1037 | } | ||
1038 | } | ||
1039 | |||
1040 | free (shorts); | ||
1041 | free (long_options); | ||
1042 | if (cont == MONKEY_SYSERR) | ||
1043 | return MONKEY_SYSERR; | ||
1044 | return GNoptind; | ||
1045 | } | ||
1046 | |||
1047 | /* end of getopt.c */ | ||