Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 1 | /* |
| 2 | NOTE: |
| 3 | I cannot get the vanilla getopt code to work (i.e. compile only what |
| 4 | is needed and not duplicate symbols found in the standard library) |
| 5 | on all the platforms that FLAC supports. In particular the gating |
| 6 | of code with the ELIDE_CODE #define is not accurate enough on systems |
| 7 | that are POSIX but not glibc. If someone has a patch that works on |
| 8 | GNU/Linux, Darwin, AND Solaris please submit it on the project page: |
| 9 | http://sourceforge.net/projects/flac |
| 10 | |
| 11 | In the meantime I have munged the global symbols and remove gates |
| 12 | around code, while at the same time trying to touch the original as |
| 13 | little as possible. |
| 14 | */ |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 15 | /* Getopt for GNU. |
| 16 | NOTE: getopt is now part of the C library, so if you don't know what |
| 17 | "Keep this file name-space clean" means, talk to drepper@gnu.org |
| 18 | before changing it! |
| 19 | |
| 20 | Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 |
| 21 | Free Software Foundation, Inc. |
| 22 | |
| 23 | The GNU C Library is free software; you can redistribute it and/or |
| 24 | modify it under the terms of the GNU Library General Public License as |
| 25 | published by the Free Software Foundation; either version 2 of the |
| 26 | License, or (at your option) any later version. |
| 27 | |
| 28 | The GNU C Library is distributed in the hope that it will be useful, |
| 29 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 30 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 31 | Library General Public License for more details. |
| 32 | |
| 33 | You should have received a copy of the GNU Library General Public |
| 34 | License along with the GNU C Library; see the file COPYING.LIB. If not, |
| 35 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 36 | Boston, MA 02111-1307, USA. */ |
| 37 | |
| 38 | /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>. |
| 39 | Ditto for AIX 3.2 and <stdlib.h>. */ |
| 40 | #ifndef _NO_PROTO |
| 41 | # define _NO_PROTO |
| 42 | #endif |
| 43 | |
| 44 | #ifdef HAVE_CONFIG_H |
| 45 | # include <config.h> |
| 46 | #endif |
| 47 | |
| 48 | #if !defined __STDC__ || !__STDC__ |
| 49 | /* This is a separate conditional since some stdc systems |
| 50 | reject `defined (const)'. */ |
| 51 | # ifndef const |
| 52 | # define const |
| 53 | # endif |
| 54 | #endif |
| 55 | |
| 56 | #include <stdio.h> |
| 57 | |
| 58 | /* Comment out all this code if we are using the GNU C Library, and are not |
| 59 | actually compiling the library itself. This code is part of the GNU C |
| 60 | Library, but also included in many other GNU distributions. Compiling |
| 61 | and linking in this code is a waste when using the GNU C library |
| 62 | (especially if it is a shared library). Rather than having every GNU |
| 63 | program understand `configure --with-gnu-libc' and omit the object files, |
| 64 | it is simpler to just do this in the source for each such file. */ |
| 65 | |
| 66 | #define GETOPT_INTERFACE_VERSION 2 |
| 67 | #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 |
| 68 | # include <gnu-versions.h> |
| 69 | # if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION |
| 70 | # define ELIDE_CODE |
| 71 | # endif |
| 72 | #endif |
| 73 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 74 | #if 1 |
| 75 | /*[JEC] was:#ifndef ELIDE_CODE*/ |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 76 | |
| 77 | |
| 78 | /* This needs to come after some library #include |
| 79 | to get __GNU_LIBRARY__ defined. */ |
| 80 | #ifdef __GNU_LIBRARY__ |
| 81 | /* Don't include stdlib.h for non-GNU C libraries because some of them |
| 82 | contain conflicting prototypes for getopt. */ |
| 83 | # include <stdlib.h> |
| 84 | # include <unistd.h> |
| 85 | #endif /* GNU C library. */ |
| 86 | |
| 87 | #ifdef VMS |
| 88 | # include <unixlib.h> |
| 89 | # if HAVE_STRING_H - 0 |
| 90 | # include <string.h> |
| 91 | # endif |
| 92 | #endif |
| 93 | |
| 94 | #ifndef _ |
| 95 | /* This is for other GNU distributions with internationalized messages. |
| 96 | When compiling libc, the _ macro is predefined. */ |
| 97 | # ifdef HAVE_LIBINTL_H |
| 98 | # include <libintl.h> |
| 99 | # define _(msgid) gettext (msgid) |
| 100 | # else |
| 101 | # define _(msgid) (msgid) |
| 102 | # endif |
| 103 | #endif |
| 104 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 105 | /* This version of `FLAC__share__getopt' appears to the caller like standard Unix `getopt' |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 106 | but it behaves differently for the user, since it allows the user |
| 107 | to intersperse the options with the other arguments. |
| 108 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 109 | As `FLAC__share__getopt' works, it permutes the elements of ARGV so that, |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 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 | |
Josh Coalson | 90dff44 | 2002-06-28 19:26:36 +0000 | [diff] [blame] | 119 | #include "share/getopt.h" |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 120 | /*[JEC] was:#include "getopt.h"*/ |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 121 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 122 | /* For communication from `FLAC__share__getopt' to the caller. |
| 123 | When `FLAC__share__getopt' finds an option that takes an argument, |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 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 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 128 | char *FLAC__share__optarg; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 129 | |
| 130 | /* Index in ARGV of the next element to be scanned. |
| 131 | This is used for communication to and from the caller |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 132 | and for communication between successive calls to `FLAC__share__getopt'. |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 133 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 134 | On entry to `FLAC__share__getopt', zero means this is the first call; initialize. |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 135 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 136 | When `FLAC__share__getopt' returns -1, this is the index of the first of the |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 137 | non-option elements that the caller should itself scan. |
| 138 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 139 | Otherwise, `FLAC__share__optind' communicates from one call to the next |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 140 | how much of ARGV has been scanned so far. */ |
| 141 | |
| 142 | /* 1003.2 says this must be 1 before any call. */ |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 143 | int FLAC__share__optind = 1; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 144 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 145 | /* Formerly, initialization of getopt depended on FLAC__share__optind==0, which |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 146 | causes problems with re-calling getopt as programs generally don't |
| 147 | know that. */ |
| 148 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 149 | int FLAC__share____getopt_initialized; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 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 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 163 | int FLAC__share__opterr = 1; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 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 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 169 | int FLAC__share__optopt = '?'; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 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 |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 198 | `--' can cause `FLAC__share__getopt' to return -1 with `FLAC__share__optind' != ARGC. */ |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 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 | |
| 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. */ |
| 213 | # include <string.h> |
| 214 | # define my_index strchr |
| 215 | #else |
| 216 | |
| 217 | #include <string.h> |
| 218 | |
| 219 | /* Avoid depending on library functions or files |
| 220 | whose names are inconsistent. */ |
| 221 | |
| 222 | #ifndef getenv |
| 223 | extern char *getenv (); |
| 224 | #endif |
| 225 | |
| 226 | static char * |
| 227 | my_index (str, chr) |
| 228 | const char *str; |
| 229 | int chr; |
| 230 | { |
| 231 | while (*str) |
| 232 | { |
| 233 | if (*str == chr) |
| 234 | return (char *) str; |
| 235 | str++; |
| 236 | } |
| 237 | return 0; |
| 238 | } |
| 239 | |
| 240 | /* If using GCC, we can safely declare strlen this way. |
| 241 | If not using GCC, it is ok not to declare it. */ |
| 242 | #ifdef __GNUC__ |
| 243 | /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h. |
| 244 | That was relevant to code that was here before. */ |
| 245 | # if (!defined __STDC__ || !__STDC__) && !defined strlen |
| 246 | /* gcc with -traditional declares the built-in strlen to return int, |
| 247 | and has done so at least since version 2.4.5. -- rms. */ |
| 248 | extern int strlen (const char *); |
| 249 | # endif /* not __STDC__ */ |
| 250 | #endif /* __GNUC__ */ |
| 251 | |
| 252 | #endif /* not __GNU_LIBRARY__ */ |
| 253 | |
| 254 | /* Handle permutation of arguments. */ |
| 255 | |
| 256 | /* Describe the part of ARGV that contains non-options that have |
| 257 | been skipped. `first_nonopt' is the index in ARGV of the first of them; |
| 258 | `last_nonopt' is the index after the last of them. */ |
| 259 | |
| 260 | static int first_nonopt; |
| 261 | static int last_nonopt; |
| 262 | |
| 263 | #ifdef _LIBC |
| 264 | /* Bash 2.0 gives us an environment variable containing flags |
| 265 | indicating ARGV elements that should not be considered arguments. */ |
| 266 | |
| 267 | /* Defined in getopt_init.c */ |
| 268 | extern char *__getopt_nonoption_flags; |
| 269 | |
| 270 | static int nonoption_flags_max_len; |
| 271 | static int nonoption_flags_len; |
| 272 | |
| 273 | static int original_argc; |
| 274 | static char *const *original_argv; |
| 275 | |
| 276 | /* Make sure the environment variable bash 2.0 puts in the environment |
| 277 | is valid for the getopt call we must make sure that the ARGV passed |
| 278 | to getopt is that one passed to the process. */ |
| 279 | static void |
| 280 | __attribute__ ((unused)) |
| 281 | store_args_and_env (int argc, char *const *argv) |
| 282 | { |
| 283 | /* XXX This is no good solution. We should rather copy the args so |
| 284 | that we can compare them later. But we must not use malloc(3). */ |
| 285 | original_argc = argc; |
| 286 | original_argv = argv; |
| 287 | } |
| 288 | # ifdef text_set_element |
| 289 | text_set_element (__libc_subinit, store_args_and_env); |
| 290 | # endif /* text_set_element */ |
| 291 | |
| 292 | # define SWAP_FLAGS(ch1, ch2) \ |
| 293 | if (nonoption_flags_len > 0) \ |
| 294 | { \ |
| 295 | char __tmp = __getopt_nonoption_flags[ch1]; \ |
| 296 | __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \ |
| 297 | __getopt_nonoption_flags[ch2] = __tmp; \ |
| 298 | } |
| 299 | #else /* !_LIBC */ |
| 300 | # define SWAP_FLAGS(ch1, ch2) |
| 301 | #endif /* _LIBC */ |
| 302 | |
| 303 | /* Exchange two adjacent subsequences of ARGV. |
| 304 | One subsequence is elements [first_nonopt,last_nonopt) |
| 305 | which contains all the non-options that have been skipped so far. |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 306 | The other is elements [last_nonopt,FLAC__share__optind), which contains all |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 307 | the options processed since those non-options were skipped. |
| 308 | |
| 309 | `first_nonopt' and `last_nonopt' are relocated so that they describe |
| 310 | the new indices of the non-options in ARGV after they are moved. */ |
| 311 | |
| 312 | #if defined __STDC__ && __STDC__ |
| 313 | static void exchange (char **); |
| 314 | #endif |
| 315 | |
| 316 | static void |
| 317 | exchange (argv) |
| 318 | char **argv; |
| 319 | { |
| 320 | int bottom = first_nonopt; |
| 321 | int middle = last_nonopt; |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 322 | int top = FLAC__share__optind; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 323 | char *tem; |
| 324 | |
| 325 | /* Exchange the shorter segment with the far end of the longer segment. |
| 326 | That puts the shorter segment into the right place. |
| 327 | It leaves the longer segment in the right place overall, |
| 328 | but it consists of two parts that need to be swapped next. */ |
| 329 | |
| 330 | #ifdef _LIBC |
| 331 | /* First make sure the handling of the `__getopt_nonoption_flags' |
| 332 | string can work normally. Our top argument must be in the range |
| 333 | of the string. */ |
| 334 | if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len) |
| 335 | { |
| 336 | /* We must extend the array. The user plays games with us and |
| 337 | presents new arguments. */ |
| 338 | char *new_str = malloc (top + 1); |
| 339 | if (new_str == NULL) |
| 340 | nonoption_flags_len = nonoption_flags_max_len = 0; |
| 341 | else |
| 342 | { |
| 343 | memset (__mempcpy (new_str, __getopt_nonoption_flags, |
| 344 | nonoption_flags_max_len), |
| 345 | '\0', top + 1 - nonoption_flags_max_len); |
| 346 | nonoption_flags_max_len = top + 1; |
| 347 | __getopt_nonoption_flags = new_str; |
| 348 | } |
| 349 | } |
| 350 | #endif |
| 351 | |
| 352 | while (top > middle && middle > bottom) |
| 353 | { |
| 354 | if (top - middle > middle - bottom) |
| 355 | { |
| 356 | /* Bottom segment is the short one. */ |
| 357 | int len = middle - bottom; |
| 358 | register int i; |
| 359 | |
| 360 | /* Swap it with the top part of the top segment. */ |
| 361 | for (i = 0; i < len; i++) |
| 362 | { |
| 363 | tem = argv[bottom + i]; |
| 364 | argv[bottom + i] = argv[top - (middle - bottom) + i]; |
| 365 | argv[top - (middle - bottom) + i] = tem; |
| 366 | SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); |
| 367 | } |
| 368 | /* Exclude the moved bottom segment from further swapping. */ |
| 369 | top -= len; |
| 370 | } |
| 371 | else |
| 372 | { |
| 373 | /* Top segment is the short one. */ |
| 374 | int len = top - middle; |
| 375 | register int i; |
| 376 | |
| 377 | /* Swap it with the bottom part of the bottom segment. */ |
| 378 | for (i = 0; i < len; i++) |
| 379 | { |
| 380 | tem = argv[bottom + i]; |
| 381 | argv[bottom + i] = argv[middle + i]; |
| 382 | argv[middle + i] = tem; |
| 383 | SWAP_FLAGS (bottom + i, middle + i); |
| 384 | } |
| 385 | /* Exclude the moved top segment from further swapping. */ |
| 386 | bottom += len; |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | /* Update records for the slots the non-options now occupy. */ |
| 391 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 392 | first_nonopt += (FLAC__share__optind - last_nonopt); |
| 393 | last_nonopt = FLAC__share__optind; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 394 | } |
| 395 | |
| 396 | /* Initialize the internal data when the first call is made. */ |
| 397 | |
| 398 | #if defined __STDC__ && __STDC__ |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 399 | static const char *FLAC__share___getopt_initialize (int, char *const *, const char *); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 400 | #endif |
| 401 | static const char * |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 402 | FLAC__share___getopt_initialize (argc, argv, optstring) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 403 | int argc; |
| 404 | char *const *argv; |
| 405 | const char *optstring; |
| 406 | { |
| 407 | /* Start processing options with ARGV-element 1 (since ARGV-element 0 |
| 408 | is the program name); the sequence of previously skipped |
| 409 | non-option ARGV-elements is empty. */ |
| 410 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 411 | first_nonopt = last_nonopt = FLAC__share__optind; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 412 | |
| 413 | nextchar = NULL; |
| 414 | |
| 415 | posixly_correct = getenv ("POSIXLY_CORRECT"); |
| 416 | |
| 417 | /* Determine how to handle the ordering of options and nonoptions. */ |
| 418 | |
| 419 | if (optstring[0] == '-') |
| 420 | { |
| 421 | ordering = RETURN_IN_ORDER; |
| 422 | ++optstring; |
| 423 | } |
| 424 | else if (optstring[0] == '+') |
| 425 | { |
| 426 | ordering = REQUIRE_ORDER; |
| 427 | ++optstring; |
| 428 | } |
| 429 | else if (posixly_correct != NULL) |
| 430 | ordering = REQUIRE_ORDER; |
| 431 | else |
| 432 | ordering = PERMUTE; |
| 433 | |
| 434 | #ifdef _LIBC |
| 435 | if (posixly_correct == NULL |
| 436 | && argc == original_argc && argv == original_argv) |
| 437 | { |
| 438 | if (nonoption_flags_max_len == 0) |
| 439 | { |
| 440 | if (__getopt_nonoption_flags == NULL |
| 441 | || __getopt_nonoption_flags[0] == '\0') |
| 442 | nonoption_flags_max_len = -1; |
| 443 | else |
| 444 | { |
| 445 | const char *orig_str = __getopt_nonoption_flags; |
| 446 | int len = nonoption_flags_max_len = strlen (orig_str); |
| 447 | if (nonoption_flags_max_len < argc) |
| 448 | nonoption_flags_max_len = argc; |
| 449 | __getopt_nonoption_flags = |
| 450 | (char *) malloc (nonoption_flags_max_len); |
| 451 | if (__getopt_nonoption_flags == NULL) |
| 452 | nonoption_flags_max_len = -1; |
| 453 | else |
| 454 | memset (__mempcpy (__getopt_nonoption_flags, orig_str, len), |
| 455 | '\0', nonoption_flags_max_len - len); |
| 456 | } |
| 457 | } |
| 458 | nonoption_flags_len = nonoption_flags_max_len; |
| 459 | } |
| 460 | else |
| 461 | nonoption_flags_len = 0; |
Josh Coalson | 875b001 | 2002-08-19 21:33:22 +0000 | [diff] [blame] | 462 | #else |
| 463 | (void)argc, (void)argv; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 464 | #endif |
| 465 | |
| 466 | return optstring; |
| 467 | } |
| 468 | |
| 469 | /* Scan elements of ARGV (whose length is ARGC) for option characters |
| 470 | given in OPTSTRING. |
| 471 | |
| 472 | If an element of ARGV starts with '-', and is not exactly "-" or "--", |
| 473 | then it is an option element. The characters of this element |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 474 | (aside from the initial '-') are option characters. If `FLAC__share__getopt' |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 475 | is called repeatedly, it returns successively each of the option characters |
| 476 | from each of the option elements. |
| 477 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 478 | If `FLAC__share__getopt' finds another option character, it returns that character, |
| 479 | updating `FLAC__share__optind' and `nextchar' so that the next call to `FLAC__share__getopt' can |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 480 | resume the scan with the following option character or ARGV-element. |
| 481 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 482 | If there are no more option characters, `FLAC__share__getopt' returns -1. |
| 483 | Then `FLAC__share__optind' is the index in ARGV of the first ARGV-element |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 484 | that is not an option. (The ARGV-elements have been permuted |
| 485 | so that those that are not options now come last.) |
| 486 | |
| 487 | OPTSTRING is a string containing the legitimate option characters. |
| 488 | If an option character is seen that is not listed in OPTSTRING, |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 489 | return '?' after printing an error message. If you set `FLAC__share__opterr' to |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 490 | zero, the error message is suppressed but we still return '?'. |
| 491 | |
| 492 | If a char in OPTSTRING is followed by a colon, that means it wants an arg, |
| 493 | so the following text in the same ARGV-element, or the text of the following |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 494 | ARGV-element, is returned in `FLAC__share__optarg'. Two colons mean an option that |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 495 | wants an optional arg; if there is text in the current ARGV-element, |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 496 | it is returned in `FLAC__share__optarg', otherwise `FLAC__share__optarg' is set to zero. |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 497 | |
| 498 | If OPTSTRING starts with `-' or `+', it requests different methods of |
| 499 | handling the non-option ARGV-elements. |
| 500 | See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. |
| 501 | |
| 502 | Long-named options begin with `--' instead of `-'. |
| 503 | Their names may be abbreviated as long as the abbreviation is unique |
| 504 | or is an exact match for some defined option. If they have an |
| 505 | argument, it follows the option name in the same ARGV-element, separated |
| 506 | from the option name by a `=', or else the in next ARGV-element. |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 507 | When `FLAC__share__getopt' finds a long-named option, it returns 0 if that option's |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 508 | `flag' field is nonzero, the value of the option's `val' field |
| 509 | if the `flag' field is zero. |
| 510 | |
| 511 | The elements of ARGV aren't really const, because we permute them. |
| 512 | But we pretend they're const in the prototype to be compatible |
| 513 | with other systems. |
| 514 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 515 | LONGOPTS is a vector of `struct FLAC__share__option' terminated by an |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 516 | element containing a name which is zero. |
| 517 | |
| 518 | LONGIND returns the index in LONGOPT of the long-named option found. |
| 519 | It is only valid when a long-named option has been found by the most |
| 520 | recent call. |
| 521 | |
| 522 | If LONG_ONLY is nonzero, '-' as well as '--' can introduce |
| 523 | long-named options. */ |
| 524 | |
| 525 | int |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 526 | FLAC__share___getopt_internal (argc, argv, optstring, longopts, longind, long_only) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 527 | int argc; |
| 528 | char *const *argv; |
| 529 | const char *optstring; |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 530 | const struct FLAC__share__option *longopts; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 531 | int *longind; |
| 532 | int long_only; |
| 533 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 534 | FLAC__share__optarg = NULL; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 535 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 536 | if (FLAC__share__optind == 0 || !FLAC__share____getopt_initialized) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 537 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 538 | if (FLAC__share__optind == 0) |
| 539 | FLAC__share__optind = 1; /* Don't scan ARGV[0], the program name. */ |
| 540 | optstring = FLAC__share___getopt_initialize (argc, argv, optstring); |
| 541 | FLAC__share____getopt_initialized = 1; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 542 | } |
| 543 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 544 | /* Test whether ARGV[FLAC__share__optind] points to a non-option argument. |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 545 | Either it does not have option syntax, or there is an environment flag |
| 546 | from the shell indicating it is not an option. The later information |
| 547 | is only used when the used in the GNU libc. */ |
| 548 | #ifdef _LIBC |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 549 | # define NONOPTION_P (argv[FLAC__share__optind][0] != '-' || argv[FLAC__share__optind][1] == '\0' \ |
| 550 | || (FLAC__share__optind < nonoption_flags_len \ |
| 551 | && __getopt_nonoption_flags[FLAC__share__optind] == '1')) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 552 | #else |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 553 | # define NONOPTION_P (argv[FLAC__share__optind][0] != '-' || argv[FLAC__share__optind][1] == '\0') |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 554 | #endif |
| 555 | |
| 556 | if (nextchar == NULL || *nextchar == '\0') |
| 557 | { |
| 558 | /* Advance to the next ARGV-element. */ |
| 559 | |
| 560 | /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been |
| 561 | moved back by the user (who may also have changed the arguments). */ |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 562 | if (last_nonopt > FLAC__share__optind) |
| 563 | last_nonopt = FLAC__share__optind; |
| 564 | if (first_nonopt > FLAC__share__optind) |
| 565 | first_nonopt = FLAC__share__optind; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 566 | |
| 567 | if (ordering == PERMUTE) |
| 568 | { |
| 569 | /* If we have just processed some options following some non-options, |
| 570 | exchange them so that the options come first. */ |
| 571 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 572 | if (first_nonopt != last_nonopt && last_nonopt != FLAC__share__optind) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 573 | exchange ((char **) argv); |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 574 | else if (last_nonopt != FLAC__share__optind) |
| 575 | first_nonopt = FLAC__share__optind; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 576 | |
| 577 | /* Skip any additional non-options |
| 578 | and extend the range of non-options previously skipped. */ |
| 579 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 580 | while (FLAC__share__optind < argc && NONOPTION_P) |
| 581 | FLAC__share__optind++; |
| 582 | last_nonopt = FLAC__share__optind; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 583 | } |
| 584 | |
| 585 | /* The special ARGV-element `--' means premature end of options. |
| 586 | Skip it like a null option, |
| 587 | then exchange with previous non-options as if it were an option, |
| 588 | then skip everything else like a non-option. */ |
| 589 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 590 | if (FLAC__share__optind != argc && !strcmp (argv[FLAC__share__optind], "--")) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 591 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 592 | FLAC__share__optind++; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 593 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 594 | if (first_nonopt != last_nonopt && last_nonopt != FLAC__share__optind) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 595 | exchange ((char **) argv); |
| 596 | else if (first_nonopt == last_nonopt) |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 597 | first_nonopt = FLAC__share__optind; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 598 | last_nonopt = argc; |
| 599 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 600 | FLAC__share__optind = argc; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 601 | } |
| 602 | |
| 603 | /* If we have done all the ARGV-elements, stop the scan |
| 604 | and back over any non-options that we skipped and permuted. */ |
| 605 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 606 | if (FLAC__share__optind == argc) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 607 | { |
| 608 | /* Set the next-arg-index to point at the non-options |
| 609 | that we previously skipped, so the caller will digest them. */ |
| 610 | if (first_nonopt != last_nonopt) |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 611 | FLAC__share__optind = first_nonopt; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 612 | return -1; |
| 613 | } |
| 614 | |
| 615 | /* If we have come to a non-option and did not permute it, |
| 616 | either stop the scan or describe it to the caller and pass it by. */ |
| 617 | |
| 618 | if (NONOPTION_P) |
| 619 | { |
| 620 | if (ordering == REQUIRE_ORDER) |
| 621 | return -1; |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 622 | FLAC__share__optarg = argv[FLAC__share__optind++]; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 623 | return 1; |
| 624 | } |
| 625 | |
| 626 | /* We have found another option-ARGV-element. |
| 627 | Skip the initial punctuation. */ |
| 628 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 629 | nextchar = (argv[FLAC__share__optind] + 1 |
| 630 | + (longopts != NULL && argv[FLAC__share__optind][1] == '-')); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 631 | } |
| 632 | |
| 633 | /* Decode the current option-ARGV-element. */ |
| 634 | |
| 635 | /* Check whether the ARGV-element is a long option. |
| 636 | |
| 637 | If long_only and the ARGV-element has the form "-f", where f is |
| 638 | a valid short option, don't consider it an abbreviated form of |
| 639 | a long option that starts with f. Otherwise there would be no |
| 640 | way to give the -f short option. |
| 641 | |
| 642 | On the other hand, if there's a long option "fubar" and |
| 643 | the ARGV-element is "-fu", do consider that an abbreviation of |
| 644 | the long option, just like "--fu", and not "-f" with arg "u". |
| 645 | |
| 646 | This distinction seems to be the most useful approach. */ |
| 647 | |
| 648 | if (longopts != NULL |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 649 | && (argv[FLAC__share__optind][1] == '-' |
| 650 | || (long_only && (argv[FLAC__share__optind][2] || !my_index (optstring, argv[FLAC__share__optind][1]))))) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 651 | { |
| 652 | char *nameend; |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 653 | const struct FLAC__share__option *p; |
| 654 | const struct FLAC__share__option *pfound = NULL; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 655 | int exact = 0; |
| 656 | int ambig = 0; |
| 657 | int indfound = -1; |
| 658 | int option_index; |
| 659 | |
| 660 | for (nameend = nextchar; *nameend && *nameend != '='; nameend++) |
| 661 | /* Do nothing. */ ; |
| 662 | |
| 663 | /* Test all long options for either exact match |
| 664 | or abbreviated matches. */ |
| 665 | for (p = longopts, option_index = 0; p->name; p++, option_index++) |
| 666 | if (!strncmp (p->name, nextchar, nameend - nextchar)) |
| 667 | { |
| 668 | if ((unsigned int) (nameend - nextchar) |
| 669 | == (unsigned int) strlen (p->name)) |
| 670 | { |
| 671 | /* Exact match found. */ |
| 672 | pfound = p; |
| 673 | indfound = option_index; |
| 674 | exact = 1; |
| 675 | break; |
| 676 | } |
| 677 | else if (pfound == NULL) |
| 678 | { |
| 679 | /* First nonexact match found. */ |
| 680 | pfound = p; |
| 681 | indfound = option_index; |
| 682 | } |
| 683 | else |
| 684 | /* Second or later nonexact match found. */ |
| 685 | ambig = 1; |
| 686 | } |
| 687 | |
| 688 | if (ambig && !exact) |
| 689 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 690 | if (FLAC__share__opterr) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 691 | fprintf (stderr, _("%s: option `%s' is ambiguous\n"), |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 692 | argv[0], argv[FLAC__share__optind]); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 693 | nextchar += strlen (nextchar); |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 694 | FLAC__share__optind++; |
| 695 | FLAC__share__optopt = 0; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 696 | return '?'; |
| 697 | } |
| 698 | |
| 699 | if (pfound != NULL) |
| 700 | { |
| 701 | option_index = indfound; |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 702 | FLAC__share__optind++; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 703 | if (*nameend) |
| 704 | { |
| 705 | /* Don't test has_arg with >, because some C compilers don't |
| 706 | allow it to be used on enums. */ |
| 707 | if (pfound->has_arg) |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 708 | FLAC__share__optarg = nameend + 1; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 709 | else |
| 710 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 711 | if (FLAC__share__opterr) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 712 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 713 | if (argv[FLAC__share__optind - 1][1] == '-') |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 714 | /* --option */ |
| 715 | fprintf (stderr, |
| 716 | _("%s: option `--%s' doesn't allow an argument\n"), |
| 717 | argv[0], pfound->name); |
| 718 | else |
| 719 | /* +option or -option */ |
| 720 | fprintf (stderr, |
| 721 | _("%s: option `%c%s' doesn't allow an argument\n"), |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 722 | argv[0], argv[FLAC__share__optind - 1][0], pfound->name); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 723 | } |
| 724 | |
| 725 | nextchar += strlen (nextchar); |
| 726 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 727 | FLAC__share__optopt = pfound->val; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 728 | return '?'; |
| 729 | } |
| 730 | } |
| 731 | else if (pfound->has_arg == 1) |
| 732 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 733 | if (FLAC__share__optind < argc) |
| 734 | FLAC__share__optarg = argv[FLAC__share__optind++]; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 735 | else |
| 736 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 737 | if (FLAC__share__opterr) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 738 | fprintf (stderr, |
| 739 | _("%s: option `%s' requires an argument\n"), |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 740 | argv[0], argv[FLAC__share__optind - 1]); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 741 | nextchar += strlen (nextchar); |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 742 | FLAC__share__optopt = pfound->val; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 743 | return optstring[0] == ':' ? ':' : '?'; |
| 744 | } |
| 745 | } |
| 746 | nextchar += strlen (nextchar); |
| 747 | if (longind != NULL) |
| 748 | *longind = option_index; |
| 749 | if (pfound->flag) |
| 750 | { |
| 751 | *(pfound->flag) = pfound->val; |
| 752 | return 0; |
| 753 | } |
| 754 | return pfound->val; |
| 755 | } |
| 756 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 757 | /* Can't find it as a long option. If this is not FLAC__share__getopt_long_only, |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 758 | or the option starts with '--' or is not a valid short |
| 759 | option, then it's an error. |
| 760 | Otherwise interpret it as a short option. */ |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 761 | if (!long_only || argv[FLAC__share__optind][1] == '-' |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 762 | || my_index (optstring, *nextchar) == NULL) |
| 763 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 764 | if (FLAC__share__opterr) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 765 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 766 | if (argv[FLAC__share__optind][1] == '-') |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 767 | /* --option */ |
| 768 | fprintf (stderr, _("%s: unrecognized option `--%s'\n"), |
| 769 | argv[0], nextchar); |
| 770 | else |
| 771 | /* +option or -option */ |
| 772 | fprintf (stderr, _("%s: unrecognized option `%c%s'\n"), |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 773 | argv[0], argv[FLAC__share__optind][0], nextchar); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 774 | } |
| 775 | nextchar = (char *) ""; |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 776 | FLAC__share__optind++; |
| 777 | FLAC__share__optopt = 0; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 778 | return '?'; |
| 779 | } |
| 780 | } |
| 781 | |
| 782 | /* Look at and handle the next short option-character. */ |
| 783 | |
| 784 | { |
| 785 | char c = *nextchar++; |
| 786 | char *temp = my_index (optstring, c); |
| 787 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 788 | /* Increment `FLAC__share__optind' when we start to process its last character. */ |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 789 | if (*nextchar == '\0') |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 790 | ++FLAC__share__optind; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 791 | |
| 792 | if (temp == NULL || c == ':') |
| 793 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 794 | if (FLAC__share__opterr) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 795 | { |
| 796 | if (posixly_correct) |
| 797 | /* 1003.2 specifies the format of this message. */ |
| 798 | fprintf (stderr, _("%s: illegal option -- %c\n"), |
| 799 | argv[0], c); |
| 800 | else |
| 801 | fprintf (stderr, _("%s: invalid option -- %c\n"), |
| 802 | argv[0], c); |
| 803 | } |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 804 | FLAC__share__optopt = c; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 805 | return '?'; |
| 806 | } |
| 807 | /* Convenience. Treat POSIX -W foo same as long option --foo */ |
| 808 | if (temp[0] == 'W' && temp[1] == ';') |
| 809 | { |
| 810 | char *nameend; |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 811 | const struct FLAC__share__option *p; |
| 812 | const struct FLAC__share__option *pfound = NULL; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 813 | int exact = 0; |
| 814 | int ambig = 0; |
| 815 | int indfound = 0; |
| 816 | int option_index; |
| 817 | |
| 818 | /* This is an option that requires an argument. */ |
| 819 | if (*nextchar != '\0') |
| 820 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 821 | FLAC__share__optarg = nextchar; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 822 | /* If we end this ARGV-element by taking the rest as an arg, |
| 823 | we must advance to the next element now. */ |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 824 | FLAC__share__optind++; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 825 | } |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 826 | else if (FLAC__share__optind == argc) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 827 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 828 | if (FLAC__share__opterr) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 829 | { |
| 830 | /* 1003.2 specifies the format of this message. */ |
| 831 | fprintf (stderr, _("%s: option requires an argument -- %c\n"), |
| 832 | argv[0], c); |
| 833 | } |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 834 | FLAC__share__optopt = c; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 835 | if (optstring[0] == ':') |
| 836 | c = ':'; |
| 837 | else |
| 838 | c = '?'; |
| 839 | return c; |
| 840 | } |
| 841 | else |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 842 | /* We already incremented `FLAC__share__optind' once; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 843 | increment it again when taking next ARGV-elt as argument. */ |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 844 | FLAC__share__optarg = argv[FLAC__share__optind++]; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 845 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 846 | /* FLAC__share__optarg is now the argument, see if it's in the |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 847 | table of longopts. */ |
| 848 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 849 | for (nextchar = nameend = FLAC__share__optarg; *nameend && *nameend != '='; nameend++) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 850 | /* Do nothing. */ ; |
| 851 | |
| 852 | /* Test all long options for either exact match |
| 853 | or abbreviated matches. */ |
| 854 | for (p = longopts, option_index = 0; p->name; p++, option_index++) |
| 855 | if (!strncmp (p->name, nextchar, nameend - nextchar)) |
| 856 | { |
| 857 | if ((unsigned int) (nameend - nextchar) == strlen (p->name)) |
| 858 | { |
| 859 | /* Exact match found. */ |
| 860 | pfound = p; |
| 861 | indfound = option_index; |
| 862 | exact = 1; |
| 863 | break; |
| 864 | } |
| 865 | else if (pfound == NULL) |
| 866 | { |
| 867 | /* First nonexact match found. */ |
| 868 | pfound = p; |
| 869 | indfound = option_index; |
| 870 | } |
| 871 | else |
| 872 | /* Second or later nonexact match found. */ |
| 873 | ambig = 1; |
| 874 | } |
| 875 | if (ambig && !exact) |
| 876 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 877 | if (FLAC__share__opterr) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 878 | fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"), |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 879 | argv[0], argv[FLAC__share__optind]); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 880 | nextchar += strlen (nextchar); |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 881 | FLAC__share__optind++; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 882 | return '?'; |
| 883 | } |
| 884 | if (pfound != NULL) |
| 885 | { |
| 886 | option_index = indfound; |
| 887 | if (*nameend) |
| 888 | { |
| 889 | /* Don't test has_arg with >, because some C compilers don't |
| 890 | allow it to be used on enums. */ |
| 891 | if (pfound->has_arg) |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 892 | FLAC__share__optarg = nameend + 1; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 893 | else |
| 894 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 895 | if (FLAC__share__opterr) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 896 | fprintf (stderr, _("\ |
| 897 | %s: option `-W %s' doesn't allow an argument\n"), |
| 898 | argv[0], pfound->name); |
| 899 | |
| 900 | nextchar += strlen (nextchar); |
| 901 | return '?'; |
| 902 | } |
| 903 | } |
| 904 | else if (pfound->has_arg == 1) |
| 905 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 906 | if (FLAC__share__optind < argc) |
| 907 | FLAC__share__optarg = argv[FLAC__share__optind++]; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 908 | else |
| 909 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 910 | if (FLAC__share__opterr) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 911 | fprintf (stderr, |
| 912 | _("%s: option `%s' requires an argument\n"), |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 913 | argv[0], argv[FLAC__share__optind - 1]); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 914 | nextchar += strlen (nextchar); |
| 915 | return optstring[0] == ':' ? ':' : '?'; |
| 916 | } |
| 917 | } |
| 918 | nextchar += strlen (nextchar); |
| 919 | if (longind != NULL) |
| 920 | *longind = option_index; |
| 921 | if (pfound->flag) |
| 922 | { |
| 923 | *(pfound->flag) = pfound->val; |
| 924 | return 0; |
| 925 | } |
| 926 | return pfound->val; |
| 927 | } |
| 928 | nextchar = NULL; |
| 929 | return 'W'; /* Let the application handle it. */ |
| 930 | } |
| 931 | if (temp[1] == ':') |
| 932 | { |
| 933 | if (temp[2] == ':') |
| 934 | { |
| 935 | /* This is an option that accepts an argument optionally. */ |
| 936 | if (*nextchar != '\0') |
| 937 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 938 | FLAC__share__optarg = nextchar; |
| 939 | FLAC__share__optind++; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 940 | } |
| 941 | else |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 942 | FLAC__share__optarg = NULL; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 943 | nextchar = NULL; |
| 944 | } |
| 945 | else |
| 946 | { |
| 947 | /* This is an option that requires an argument. */ |
| 948 | if (*nextchar != '\0') |
| 949 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 950 | FLAC__share__optarg = nextchar; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 951 | /* If we end this ARGV-element by taking the rest as an arg, |
| 952 | we must advance to the next element now. */ |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 953 | FLAC__share__optind++; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 954 | } |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 955 | else if (FLAC__share__optind == argc) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 956 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 957 | if (FLAC__share__opterr) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 958 | { |
| 959 | /* 1003.2 specifies the format of this message. */ |
| 960 | fprintf (stderr, |
| 961 | _("%s: option requires an argument -- %c\n"), |
| 962 | argv[0], c); |
| 963 | } |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 964 | FLAC__share__optopt = c; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 965 | if (optstring[0] == ':') |
| 966 | c = ':'; |
| 967 | else |
| 968 | c = '?'; |
| 969 | } |
| 970 | else |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 971 | /* We already incremented `FLAC__share__optind' once; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 972 | increment it again when taking next ARGV-elt as argument. */ |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 973 | FLAC__share__optarg = argv[FLAC__share__optind++]; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 974 | nextchar = NULL; |
| 975 | } |
| 976 | } |
| 977 | return c; |
| 978 | } |
| 979 | } |
| 980 | |
| 981 | int |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 982 | FLAC__share__getopt (argc, argv, optstring) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 983 | int argc; |
| 984 | char *const *argv; |
| 985 | const char *optstring; |
| 986 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 987 | return FLAC__share___getopt_internal (argc, argv, optstring, |
| 988 | (const struct FLAC__share__option *) 0, |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 989 | (int *) 0, |
| 990 | 0); |
| 991 | } |
| 992 | |
| 993 | #endif /* Not ELIDE_CODE. */ |
| 994 | |
| 995 | #ifdef TEST |
| 996 | |
| 997 | /* Compile with -DTEST to make an executable for use in testing |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 998 | the above definition of `FLAC__share__getopt'. */ |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 999 | |
| 1000 | int |
| 1001 | main (argc, argv) |
| 1002 | int argc; |
| 1003 | char **argv; |
| 1004 | { |
| 1005 | int c; |
| 1006 | int digit_optind = 0; |
| 1007 | |
| 1008 | while (1) |
| 1009 | { |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 1010 | int this_option_optind = FLAC__share__optind ? FLAC__share__optind : 1; |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 1011 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 1012 | c = FLAC__share__getopt (argc, argv, "abc:d:0123456789"); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 1013 | if (c == -1) |
| 1014 | break; |
| 1015 | |
| 1016 | switch (c) |
| 1017 | { |
| 1018 | case '0': |
| 1019 | case '1': |
| 1020 | case '2': |
| 1021 | case '3': |
| 1022 | case '4': |
| 1023 | case '5': |
| 1024 | case '6': |
| 1025 | case '7': |
| 1026 | case '8': |
| 1027 | case '9': |
| 1028 | if (digit_optind != 0 && digit_optind != this_option_optind) |
| 1029 | printf ("digits occur in two different argv-elements.\n"); |
| 1030 | digit_optind = this_option_optind; |
| 1031 | printf ("option %c\n", c); |
| 1032 | break; |
| 1033 | |
| 1034 | case 'a': |
| 1035 | printf ("option a\n"); |
| 1036 | break; |
| 1037 | |
| 1038 | case 'b': |
| 1039 | printf ("option b\n"); |
| 1040 | break; |
| 1041 | |
| 1042 | case 'c': |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 1043 | printf ("option c with value `%s'\n", FLAC__share__optarg); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 1044 | break; |
| 1045 | |
| 1046 | case '?': |
| 1047 | break; |
| 1048 | |
| 1049 | default: |
| 1050 | printf ("?? getopt returned character code 0%o ??\n", c); |
| 1051 | } |
| 1052 | } |
| 1053 | |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 1054 | if (FLAC__share__optind < argc) |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 1055 | { |
| 1056 | printf ("non-option ARGV-elements: "); |
Josh Coalson | 021c022 | 2002-06-28 06:37:13 +0000 | [diff] [blame] | 1057 | while (FLAC__share__optind < argc) |
| 1058 | printf ("%s ", argv[FLAC__share__optind++]); |
Josh Coalson | fda98fb | 2002-05-17 06:33:39 +0000 | [diff] [blame] | 1059 | printf ("\n"); |
| 1060 | } |
| 1061 | |
| 1062 | exit (0); |
| 1063 | } |
| 1064 | |
| 1065 | #endif /* TEST */ |