/[public]/getopt/trunk/getopt.c
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Diff of /getopt/trunk/getopt.c

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Revision 321 Revision 359
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35 * Version 1.1.0: Tue Jun 30 2000 35 * Version 1.1.0: Tue Jun 30 2000
36 * Added NLS support (partly written by Arkadiusz Mi<B6>kiewicz 36 * Added NLS support (partly written by Arkadiusz Mi<B6>kiewicz
37 * <misiek@pld.org.pl>) 37 * <misiek@pld.org.pl>)
38 * Version 1.1.4: Mon Nov 7 2005 38 * Version 1.1.4: Mon Nov 7 2005
39 * Fixed a few type's in the manpage 39 * Fixed a few type's in the manpage
40 * Version 1.1.5: Mon Nov 7 2005
41 * Sync with util-linux-2.21, fixed build problems, many new translations
40 */ 42 */
41 43
42/* Exit codes: 44/* Exit codes:
43 * 0) No errors, succesful operation. 45 * 0) No errors, succesful operation.
44 * 1) getopt(3) returned an error. 46 * 1) getopt(3) returned an error.
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62#else 64#else
63#include "getopt.h" 65#include "getopt.h"
64#endif 66#endif
65 67
66#include "nls.h" 68#include "nls.h"
69#include "xalloc.h"
67 70
68/* NON_OPT is the code that is returned when a non-option is found in '+' 71/* NON_OPT is the code that is returned when a non-option is found in '+'
69 * mode */ 72 * mode */
70#define NON_OPT 1 73#define NON_OPT 1
71/* LONG_OPT is the code that is returned when a long option is found. */ 74/* LONG_OPT is the code that is returned when a long option is found. */
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79static shell_t shell = BASH; /* The shell we generate output for. */ 82static shell_t shell = BASH; /* The shell we generate output for. */
80static int quiet_errors = 0; /* 0 is not quiet. */ 83static int quiet_errors = 0; /* 0 is not quiet. */
81static int quiet_output = 0; /* 0 is not quiet. */ 84static int quiet_output = 0; /* 0 is not quiet. */
82static int quote = 1; /* 1 is do quote. */ 85static int quote = 1; /* 1 is do quote. */
83 86
87/* Allow changing which getopt is in use with function pointer */
84int (*getopt_long_fp) (int argc, char *const *argv, const char *optstr, 88int (*getopt_long_fp) (int argc, char *const *argv, const char *optstr,
85 const struct option * longopts, int *longindex); 89 const struct option * longopts, int *longindex);
86 90
87/* Function prototypes */ 91/* Function prototypes */
88void *our_malloc(size_t size);
89void *our_realloc(void *ptr, size_t size);
90static const char *normalize(const char *arg); 92static const char *normalize(const char *arg);
91static int generate_output(char *argv[], int argc, const char *optstr, 93static int generate_output(char *argv[], int argc, const char *optstr,
92 const struct option *longopts); 94 const struct option *longopts);
93int main(int argc, char *argv[]); 95int main(int argc, char *argv[]);
94static void parse_error(const char *message); 96static void parse_error(const char *message);
95static void add_long_options(char *options); 97static void add_long_options(char *options);
96static void add_longopt(const char *name, int has_arg); 98static void add_longopt(const char *name, int has_arg);
97static void print_help(void); 99static void print_help(void);
98static void set_shell(const char *new_shell); 100static void set_shell(const char *new_shell);
99 101
100void *our_malloc(size_t size)
101{
102 void *ret=malloc(size);
103 if (! ret) {
104 fprintf(stderr, ("%s: Out of memory!\n"), "getopt");
105 exit(XALLOC_EXIT_CODE);
106 }
107 return(ret);
108}
109
110void *our_realloc(void *ptr, size_t size)
111{
112 void *ret=realloc(ptr, size);
113 if (! ret && size) {
114 fprintf(stderr, ("%s: Out of memory!\n"), "getopt");
115 exit(XALLOC_EXIT_CODE);
116 }
117 return(ret);
118}
119
120/* 102/*
121 * This function 'normalizes' a single argument: it puts single quotes 103 * This function 'normalizes' a single argument: it puts single quotes
122 * around it and escapes other special characters. If quote is false, it 104 * around it and escapes other special characters. If quote is false, it
123 * just returns its argument. 105 * just returns its argument.
124 * 106 *
… …
130{ 112{
131 static char *BUFFER = NULL; 113 static char *BUFFER = NULL;
132 const char *argptr = arg; 114 const char *argptr = arg;
133 char *bufptr; 115 char *bufptr;
134 116
135 if (BUFFER != NULL)
136 free(BUFFER); 117 free(BUFFER);
137 118
138 if (!quote) { 119 if (!quote) {
139 /* Just copy arg */ 120 /* Just copy arg */
140 BUFFER = our_malloc(strlen(arg)+1); 121 BUFFER = xmalloc(strlen(arg) + 1);
141
142 strcpy(BUFFER, arg); 122 strcpy(BUFFER, arg);
143 return BUFFER; 123 return BUFFER;
144 } 124 }
145 125
146 /* 126 /*
147 * Each character in arg may take upto four characters in the 127 * Each character in arg may take upto four characters in the
148 * result: For a quote we need a closing quote, a backslash, a quote 128 * result: For a quote we need a closing quote, a backslash, a quote
149 * and an opening quote! We need also the global opening and closing 129 * and an opening quote! We need also the global opening and closing
150 * quote, and one extra character for '\0'. 130 * quote, and one extra character for '\0'.
151 */ 131 */
152 BUFFER = our_malloc(strlen(arg)*4+3); 132 BUFFER = xmalloc(strlen(arg) * 4 + 3);
153 133
154 bufptr = BUFFER; 134 bufptr = BUFFER;
155 *bufptr++ = '\''; 135 *bufptr++ = '\'';
156 136
157 while (*argptr) { 137 while (*argptr) {
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217 if (opt == LONG_OPT) { 197 if (opt == LONG_OPT) {
218 printf(" --%s", longopts[longindex].name); 198 printf(" --%s", longopts[longindex].name);
219 if (longopts[longindex].has_arg) 199 if (longopts[longindex].has_arg)
220 printf(" %s", normalize(optarg ? optarg : "")); 200 printf(" %s", normalize(optarg ? optarg : ""));
221 } else if (opt == NON_OPT) 201 } else if (opt == NON_OPT)
222 printf(" %s", normalize(optarg)); 202 printf(" %s", normalize(optarg ? optarg : ""));
223 else { 203 else {
224 printf(" -%c", opt); 204 printf(" -%c", opt);
225 charptr = strchr(optstr, opt); 205 charptr = strchr(optstr, opt);
226 if (charptr != NULL && *++charptr == ':') 206 if (charptr != NULL && *++charptr == ':')
227 printf(" %s", normalize(optarg ? optarg : "")); 207 printf(" %s", normalize(optarg ? optarg : ""));
… …
242 * we already sent a message, we just exit with a helpful hint. 222 * we already sent a message, we just exit with a helpful hint.
243 */ 223 */
244static void __attribute__ ((__noreturn__)) parse_error(const char *message) 224static void __attribute__ ((__noreturn__)) parse_error(const char *message)
245{ 225{
246 if (message) 226 if (message)
247 fprintf(stderr, "getopt: %s\n", message); 227 fprintf(stderr, "%s: %s\n", program_invocation_short_name, message);
248 fputs(_("Try `getopt --help' for more information.\n"), stderr); 228 fprintf(stderr, _("Try `%s --help' for more information.\n"),
229 program_invocation_short_name);
249 exit(PARAMETER_EXIT_CODE); 230 exit(PARAMETER_EXIT_CODE);
250} 231}
251 232
252static struct option *long_options = NULL; 233static struct option *long_options = NULL;
253static int long_options_length = 0; /* Length of array */ 234static int long_options_length = 0; /* Length of array */
… …
267 long_options_nr = 0; 248 long_options_nr = 0;
268 } 249 }
269 250
270 if (long_options_nr == long_options_length) { 251 if (long_options_nr == long_options_length) {
271 long_options_length += LONG_OPTIONS_INCR; 252 long_options_length += LONG_OPTIONS_INCR;
272 long_options = our_realloc(long_options, 253 long_options = xrealloc(long_options,
273 sizeof(struct option) * 254 sizeof(struct option) *
274 long_options_length); 255 long_options_length);
275 } 256 }
276 257
277 long_options[long_options_nr].name = NULL; 258 long_options[long_options_nr].name = NULL;
278 long_options[long_options_nr].has_arg = 0; 259 long_options[long_options_nr].has_arg = 0;
279 long_options[long_options_nr].flag = NULL; 260 long_options[long_options_nr].flag = NULL;
280 long_options[long_options_nr].val = 0; 261 long_options[long_options_nr].val = 0;
281 262
282 if (long_options_nr) { 263 if (long_options_nr && name) {
283 /* Not for init! */ 264 /* Not for init! */
284 long_options[long_options_nr - 1].has_arg = has_arg; 265 long_options[long_options_nr - 1].has_arg = has_arg;
285 long_options[long_options_nr - 1].flag = NULL; 266 long_options[long_options_nr - 1].flag = NULL;
286 long_options[long_options_nr - 1].val = LONG_OPT; 267 long_options[long_options_nr - 1].val = LONG_OPT;
287 tmp = our_malloc(strlen(name) + 1); 268 tmp = xmalloc(strlen(name) + 1);
288 strcpy(tmp, name); 269 strcpy(tmp, name);
289 long_options[long_options_nr - 1].name = tmp; 270 long_options[long_options_nr - 1].name = tmp;
290 } 271 }
291 long_options_nr++; 272 long_options_nr++;
292} 273}
… …
341{ 322{
342 fputs(_("Usage: getopt optstring parameters\n"), stderr); 323 fputs(_("Usage: getopt optstring parameters\n"), stderr);
343 fputs(_(" getopt [options] [--] optstring parameters\n"), stderr); 324 fputs(_(" getopt [options] [--] optstring parameters\n"), stderr);
344 fputs(_(" getopt [options] -o|--options optstring [options] [--]\n"), stderr); 325 fputs(_(" getopt [options] -o|--options optstring [options] [--]\n"), stderr);
345 fputs(_(" parameters\n"), stderr); 326 fputs(_(" parameters\n"), stderr);
327 fputs(_("\nOptions:\n"), stderr);
346 fputs(_(" -a, --alternative Allow long options starting with single -\n"), stderr); 328 fputs(_(" -a, --alternative Allow long options starting with single -\n"), stderr);
347 fputs(_(" -h, --help This small usage guide\n"), stderr); 329 fputs(_(" -h, --help This small usage guide\n"), stderr);
348 fputs(_(" -l, --longoptions=longopts Long options to be recognized\n"), stderr); 330 fputs(_(" -l, --longoptions <longopts> Long options to be recognized\n"), stderr);
349 fputs(_(" -n, --name=progname The name under which errors are reported\n"), stderr); 331 fputs(_(" -n, --name <progname> The name under which errors are reported\n"), stderr);
350 fputs(_(" -o, --options=optstring Short options to be recognized\n"), stderr); 332 fputs(_(" -o, --options <optstring> Short options to be recognized\n"), stderr);
351 fputs(_(" -q, --quiet Disable error reporting by getopt(3)\n"), stderr); 333 fputs(_(" -q, --quiet Disable error reporting by getopt(3)\n"), stderr);
352 fputs(_(" -Q, --quiet-output No normal output\n"), stderr); 334 fputs(_(" -Q, --quiet-output No normal output\n"), stderr);
353 fputs(_(" -s, --shell=shell Set shell quoting conventions\n"), stderr); 335 fputs(_(" -s, --shell <shell> Set shell quoting conventions\n"), stderr);
354 fputs(_(" -T, --test Test for getopt(1) version\n"), stderr); 336 fputs(_(" -T, --test Test for getopt(1) version\n"), stderr);
355 fputs(_(" -u, --unqote Do not quote the output\n"), stderr); 337 fputs(_(" -u, --unquote Do not quote the output\n"), stderr);
356 fputs(_(" -V, --version Output version information\n"), stderr); 338 fputs(_(" -V, --version Output version information\n"), stderr);
339 fputc('\n', stderr);
340
357 exit(PARAMETER_EXIT_CODE); 341 exit(PARAMETER_EXIT_CODE);
358} 342}
359 343
360int main(int argc, char *argv[]) 344int main(int argc, char *argv[])
361{ 345{
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378 {"alternative", no_argument, NULL, 'a'}, 362 {"alternative", no_argument, NULL, 'a'},
379 {"name", required_argument, NULL, 'n'}, 363 {"name", required_argument, NULL, 'n'},
380 {"version", no_argument, NULL, 'V'}, 364 {"version", no_argument, NULL, 'V'},
381 {NULL, 0, NULL, 0} 365 {NULL, 0, NULL, 0}
382 }; 366 };
383#if WITHOUT_GETTEXT
384#else
385 setlocale(LC_ALL, ""); 367 setlocale(LC_ALL, "");
386 bindtextdomain(PACKAGE, LOCALEDIR); 368 bindtextdomain(PACKAGE, LOCALEDIR);
387 textdomain(PACKAGE); 369 textdomain(PACKAGE);
388#endif
389 370
390 init_longopt(); 371 init_longopt();
391 getopt_long_fp = getopt_long; 372 getopt_long_fp = getopt_long;
392 373
393 if (getenv("GETOPT_COMPATIBLE")) 374 if (getenv("GETOPT_COMPATIBLE"))
… …
406 } 387 }
407 388
408 389
409 if (argv[1][0] != '-' || compatible) { 390 if (argv[1][0] != '-' || compatible) {
410 quote = 0; 391 quote = 0;
411 optstr = our_malloc(strlen(argv[1]) + 1); 392 optstr = xmalloc(strlen(argv[1]) + 1);
412 strcpy(optstr, argv[1] + strspn(argv[1], "-+")); 393 strcpy(optstr, argv[1] + strspn(argv[1], "-+"));
413 argv[1] = argv[0]; 394 argv[1] = argv[0];
414 return generate_output(argv + 1, argc - 1, optstr, 395 return generate_output(argv + 1, argc - 1, optstr,
415 long_options); 396 long_options);
416 } 397 }
… …
422 getopt_long_fp = getopt_long_only; 403 getopt_long_fp = getopt_long_only;
423 break; 404 break;
424 case 'h': 405 case 'h':
425 print_help(); 406 print_help();
426 case 'o': 407 case 'o':
427 if (optstr)
428 free(optstr); 408 free(optstr);
429 optstr = our_malloc(strlen(optarg)+1); 409 optstr = xmalloc(strlen(optarg) + 1);
430 strcpy(optstr, optarg); 410 strcpy(optstr, optarg);
431 break; 411 break;
432 case 'l': 412 case 'l':
433 add_long_options(optarg); 413 add_long_options(optarg);
434 break; 414 break;
435 case 'n': 415 case 'n':
436 if (name)
437 free(name); 416 free(name);
438 name = our_malloc(strlen(optarg)+1); 417 name = xmalloc(strlen(optarg) + 1);
439 strcpy(name, optarg); 418 strcpy(name, optarg);
440 break; 419 break;
441 case 'q': 420 case 'q':
442 quiet_errors = 1; 421 quiet_errors = 1;
443 break; 422 break;
… …
451 return TEST_EXIT_CODE; 430 return TEST_EXIT_CODE;
452 case 'u': 431 case 'u':
453 quote = 0; 432 quote = 0;
454 break; 433 break;
455 case 'V': 434 case 'V':
456 printf(_("getopt (enhanced) 1.1.4\n")); 435 printf(_("%s (enhanced) %s\n"), program_invocation_short_name, program_version);
457 return EXIT_SUCCESS; 436 return EXIT_SUCCESS;
458 case '?': 437 case '?':
459 case ':': 438 case ':':
460 parse_error(NULL); 439 parse_error(NULL);
461 default: 440 default:
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464 443
465 if (!optstr) { 444 if (!optstr) {
466 if (optind >= argc) 445 if (optind >= argc)
467 parse_error(_("missing optstring argument")); 446 parse_error(_("missing optstring argument"));
468 else { 447 else {
469 optstr=our_malloc(strlen(argv[optind])+1); 448 optstr = xmalloc(strlen(argv[optind]) + 1);
470 strcpy(optstr, argv[optind]); 449 strcpy(optstr, argv[optind]);
471 optind++; 450 optind++;
472 } 451 }
473 } 452 }
474 if (name) 453 if (name)
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