/[public]/getopt/trunk/getopt.c
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1/* 1/*
2 getopt.c - Enhanced implementation of BSD getopt(1) 2 * getopt.c - Enhanced implementation of BSD getopt(1)
3 Copyright (c) 1997, 1998, 1999, 2000 Frodo Looijaard <frodol@dds.nl> 3 * Copyright (c) 1997-2005 Frodo Looijaard <frodo@frodo.looijaard.name>
4 4 *
5 This program is free software; you can redistribute it and/or modify 5 * This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by 6 * it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or 7 * the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version. 8 * (at your option) any later version.
9 9 *
10 This program is distributed in the hope that it will be useful, 10 * This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details. 13 * GNU General Public License for more details.
14 14 *
15 You should have received a copy of the GNU General Public License 15 * You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software 16 * along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18*/ 18 */
19 19
20/* 20/*
21 * Version 1.0-b4: Tue Sep 23 1997. First public release. 21 * Version 1.0-b4: Tue Sep 23 1997. First public release.
22 * Version 1.0: Wed Nov 19 1997. 22 * Version 1.0: Wed Nov 19 1997.
23 * Bumped up the version number to 1.0 23 * Bumped up the version number to 1.0
… …
33 * Version 1.0.6: Tue Jun 27 2000 33 * Version 1.0.6: Tue Jun 27 2000
34 * No important changes 34 * No important changes
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
39 * Fixed a few type's in the manpage
38 */ 40 */
41
42/* Exit codes:
43 * 0) No errors, succesful operation.
44 * 1) getopt(3) returned an error.
45 * 2) A problem with parameter parsing for getopt(1).
46 * 3) Internal error, out of memory
47 * 4) Returned for -T
48 */
49#define GETOPT_EXIT_CODE 1
50#define PARAMETER_EXIT_CODE 2
51#define XALLOC_EXIT_CODE 3
52#define TEST_EXIT_CODE 4
39 53
40#include <stdio.h> 54#include <stdio.h>
41#include <stdlib.h> 55#include <stdlib.h>
42#include <string.h> 56#include <string.h>
43#include <unistd.h> 57#include <unistd.h>
… …
50#endif 64#endif
51 65
52#include "nls.h" 66#include "nls.h"
53 67
54/* NON_OPT is the code that is returned when a non-option is found in '+' 68/* NON_OPT is the code that is returned when a non-option is found in '+'
55 mode */ 69 * mode */
56#define NON_OPT 1 70#define NON_OPT 1
57/* LONG_OPT is the code that is returned when a long option is found. */ 71/* LONG_OPT is the code that is returned when a long option is found. */
58#define LONG_OPT 2 72#define LONG_OPT 2
59 73
60/* The shells recognized. */ 74/* The shells recognized. */
61typedef enum {BASH,TCSH} shell_t; 75typedef enum { BASH, TCSH } shell_t;
62 76
63 77
64/* Some global variables that tells us how to parse. */ 78/* Some global variables that tells us how to parse. */
65shell_t shell=BASH; /* The shell we generate output for. */ 79static shell_t shell = BASH; /* The shell we generate output for. */
66int quiet_errors=0; /* 0 is not quiet. */ 80static int quiet_errors = 0; /* 0 is not quiet. */
67int quiet_output=0; /* 0 is not quiet. */ 81static int quiet_output = 0; /* 0 is not quiet. */
68int quote=1; /* 1 is do quote. */ 82static int quote = 1; /* 1 is do quote. */
69int alternative=0; /* 0 is getopt_long, 1 is getopt_long_only */ 83
84int (*getopt_long_fp) (int argc, char *const *argv, const char *optstr,
85 const struct option * longopts, int *longindex);
70 86
71/* Function prototypes */ 87/* Function prototypes */
72void *our_malloc(size_t size); 88void *our_malloc(size_t size);
73void *our_realloc(void *ptr, size_t size); 89void *our_realloc(void *ptr, size_t size);
74const char *normalize(const char *arg); 90static const char *normalize(const char *arg);
75int generate_output(char * argv[],int argc,const char *optstr, 91static int generate_output(char *argv[], int argc, const char *optstr,
76 const struct option *longopts); 92 const struct option *longopts);
77int main(int argc, char *argv[]); 93int main(int argc, char *argv[]);
78void parse_error(const char *message); 94static void parse_error(const char *message);
79void add_long_options(char *options); 95static void add_long_options(char *options);
80void add_longopt(const char *name,int has_arg); 96static void add_longopt(const char *name, int has_arg);
81void print_help(void); 97static void print_help(void);
82void set_shell(const char *new_shell); 98static void set_shell(const char *new_shell);
83void set_initial_shell(void);
84 99
85void *our_malloc(size_t size) 100void *our_malloc(size_t size)
86{ 101{
87 void *ret=malloc(size); 102 void *ret=malloc(size);
88 if (! ret) { 103 if (! ret) {
89 fprintf(stderr,_("%s: Out of memory!\n"),"getopt"); 104 fprintf(stderr, ("%s: Out of memory!\n"), "getopt");
90 exit(3); 105 exit(XALLOC_EXIT_CODE);
91 } 106 }
92 return(ret); 107 return(ret);
93} 108}
94 109
95void *our_realloc(void *ptr, size_t size) 110void *our_realloc(void *ptr, size_t size)
96{ 111{
97 void *ret=realloc(ptr,size); 112 void *ret=realloc(ptr, size);
98 if (! ret && size) { 113 if (! ret && size) {
99 fprintf(stderr,_("%s: Out of memory!\n"),"getopt"); 114 fprintf(stderr, ("%s: Out of memory!\n"), "getopt");
100 exit(3); 115 exit(XALLOC_EXIT_CODE);
101 } 116 }
102 return(ret); 117 return(ret);
103} 118}
104 119
105/* 120/*
106 * This function 'normalizes' a single argument: it puts single quotes around 121 * This function 'normalizes' a single argument: it puts single quotes
107 * it and escapes other special characters. If quote is false, it just 122 * around it and escapes other special characters. If quote is false, it
108 * returns its argument. 123 * just returns its argument.
124 *
109 * Bash only needs special treatment for single quotes; tcsh also recognizes 125 * Bash only needs special treatment for single quotes; tcsh also recognizes
110 * exclamation marks within single quotes, and nukes whitespace. 126 * exclamation marks within single quotes, and nukes whitespace. This
111 * This function returns a pointer to a buffer that is overwritten by 127 * function returns a pointer to a buffer that is overwritten by each call.
112 * each call.
113 */ 128 */
114const char *normalize(const char *arg) 129static const char *normalize(const char *arg)
115{ 130{
116 static char *BUFFER=NULL; 131 static char *BUFFER = NULL;
117 const char *argptr=arg; 132 const char *argptr = arg;
118 char *bufptr; 133 char *bufptr;
119 134
120 if (BUFFER != NULL) 135 if (BUFFER != NULL)
121 free(BUFFER); 136 free(BUFFER);
122 137
123 if (!quote) { /* Just copy arg */ 138 if (!quote) {
139 /* Just copy arg */
124 BUFFER=our_malloc(strlen(arg)+1); 140 BUFFER = our_malloc(strlen(arg)+1);
125 141
126 strcpy(BUFFER,arg); 142 strcpy(BUFFER, arg);
127 return BUFFER; 143 return BUFFER;
128 } 144 }
129 145
146 /*
130 /* Each character in arg may take upto four characters in the result: 147 * Each character in arg may take upto four characters in the
131 For a quote we need a closing quote, a backslash, a quote and an 148 * result: For a quote we need a closing quote, a backslash, a quote
132 opening quote! We need also the global opening and closing quote, 149 * and an opening quote! We need also the global opening and closing
133 and one extra character for '\0'. */ 150 * quote, and one extra character for '\0'.
151 */
134 BUFFER=our_malloc(strlen(arg)*4+3); 152 BUFFER = our_malloc(strlen(arg)*4+3);
135 153
136 bufptr=BUFFER; 154 bufptr = BUFFER;
137 *bufptr++='\''; 155 *bufptr++ = '\'';
138 156
139 while (*argptr) { 157 while (*argptr) {
140 if (*argptr == '\'') { 158 if (*argptr == '\'') {
141 /* Quote: replace it with: '\'' */ 159 /* Quote: replace it with: '\'' */
142 *bufptr++='\''; 160 *bufptr++ = '\'';
143 *bufptr++='\\'; 161 *bufptr++ = '\\';
144 *bufptr++='\''; 162 *bufptr++ = '\'';
145 *bufptr++='\''; 163 *bufptr++ = '\'';
146 } else if (shell==TCSH && *argptr=='!') { 164 } else if (shell == TCSH && *argptr == '!') {
147 /* Exclamation mark: replace it with: \! */ 165 /* Exclamation mark: replace it with: \! */
148 *bufptr++='\''; 166 *bufptr++ = '\'';
149 *bufptr++='\\'; 167 *bufptr++ = '\\';
150 *bufptr++='!'; 168 *bufptr++ = '!';
151 *bufptr++='\''; 169 *bufptr++ = '\'';
152 } else if (shell==TCSH && *argptr=='\n') { 170 } else if (shell == TCSH && *argptr == '\n') {
153 /* Newline: replace it with: \n */ 171 /* Newline: replace it with: \n */
154 *bufptr++='\\'; 172 *bufptr++ = '\\';
155 *bufptr++='n'; 173 *bufptr++ = 'n';
156 } else if (shell==TCSH && isspace(*argptr)) { 174 } else if (shell == TCSH && isspace(*argptr)) {
157 /* Non-newline whitespace: replace it with \<ws> */ 175 /* Non-newline whitespace: replace it with \<ws> */
158 *bufptr++='\''; 176 *bufptr++ = '\'';
159 *bufptr++='\\'; 177 *bufptr++ = '\\';
160 *bufptr++=*argptr; 178 *bufptr++ = *argptr;
161 *bufptr++='\''; 179 *bufptr++ = '\'';
162 } else 180 } else
163 /* Just copy */ 181 /* Just copy */
164 *bufptr++=*argptr; 182 *bufptr++ = *argptr;
165 argptr++; 183 argptr++;
166 } 184 }
167 *bufptr++='\''; 185 *bufptr++ = '\'';
168 *bufptr++='\0'; 186 *bufptr++ = '\0';
169 return BUFFER; 187 return BUFFER;
170} 188}
171 189
172/* 190/*
173 * Generate the output. argv[0] is the program name (used for reporting errors). 191 * Generate the output. argv[0] is the program name (used for reporting errors).
174 * argv[1..] contains the options to be parsed. argc must be the number of 192 * argv[1..] contains the options to be parsed. argc must be the number of
175 * elements in argv (ie. 1 if there are no options, only the program name), 193 * elements in argv (ie. 1 if there are no options, only the program name),
176 * optstr must contain the short options, and longopts the long options. 194 * optstr must contain the short options, and longopts the long options.
177 * Other settings are found in global variables. 195 * Other settings are found in global variables.
178 */ 196 */
179int generate_output(char * argv[],int argc,const char *optstr, 197static int generate_output(char *argv[], int argc, const char *optstr,
180 const struct option *longopts) 198 const struct option *longopts)
181{ 199{
182 int exit_code = 0; /* We assume everything will be OK */ 200 int exit_code = EXIT_SUCCESS; /* Assume everything will be OK */
183 int opt; 201 int opt;
184 int longindex; 202 int longindex;
185 const char *charptr; 203 const char *charptr;
186 204
187 if (quiet_errors) /* No error reporting from getopt(3) */ 205 if (quiet_errors)
206 /* No error reporting from getopt(3) */
188 opterr=0; 207 opterr = 0;
189 optind=0; /* Reset getopt(3) */ 208 /* Reset getopt(3) */
209 optind = 0;
190 210
191 while ((opt = (alternative? 211 while ((opt =
192 getopt_long_only(argc,argv,optstr,longopts,&longindex):
193 getopt_long(argc,argv,optstr,longopts,&longindex))) 212 (getopt_long_fp(argc, argv, optstr, longopts, &longindex)))
194 != EOF) 213 != EOF)
195 if (opt == '?' || opt == ':' ) 214 if (opt == '?' || opt == ':')
196 exit_code = 1; 215 exit_code = GETOPT_EXIT_CODE;
197 else if (!quiet_output) 216 else if (!quiet_output) {
198 {
199 if (opt == LONG_OPT) { 217 if (opt == LONG_OPT) {
200 printf(" --%s",longopts[longindex].name); 218 printf(" --%s", longopts[longindex].name);
201 if (longopts[longindex].has_arg) 219 if (longopts[longindex].has_arg)
202 printf(" %s",
203 normalize(optarg?optarg:"")); 220 printf(" %s", normalize(optarg ? optarg : ""));
204 } else if (opt == NON_OPT) 221 } else if (opt == NON_OPT)
205 printf(" %s",normalize(optarg)); 222 printf(" %s", normalize(optarg));
206 else { 223 else {
207 printf(" -%c",opt); 224 printf(" -%c", opt);
208 charptr = strchr(optstr,opt); 225 charptr = strchr(optstr, opt);
209 if (charptr != NULL && *++charptr == ':') 226 if (charptr != NULL && *++charptr == ':')
210 printf(" %s",
211 normalize(optarg?optarg:"")); 227 printf(" %s", normalize(optarg ? optarg : ""));
212 } 228 }
213 } 229 }
214 230
215 if (! quiet_output) { 231 if (!quiet_output) {
216 printf(" --"); 232 printf(" --");
217 while (optind < argc) 233 while (optind < argc)
218 printf(" %s",normalize(argv[optind++])); 234 printf(" %s", normalize(argv[optind++]));
219 printf("\n"); 235 printf("\n");
220 } 236 }
221 return exit_code; 237 return exit_code;
222} 238}
223 239
224/* 240/*
225 * Report an error when parsing getopt's own arguments. 241 * Report an error when parsing getopt's own arguments. If message is NULL,
226 * If message is NULL, we already sent a message, we just exit with a helpful 242 * we already sent a message, we just exit with a helpful hint.
227 * hint.
228 */ 243 */
229void parse_error(const char *message) 244static void __attribute__ ((__noreturn__)) parse_error(const char *message)
230{ 245{
231 if (message) 246 if (message)
232 fprintf(stderr,"getopt: %s\n",message); 247 fprintf(stderr, "getopt: %s\n", message);
233 fputs(_("Try `getopt --help' for more information.\n"),stderr); 248 fputs(_("Try `getopt --help' for more information.\n"), stderr);
234 exit(2); 249 exit(PARAMETER_EXIT_CODE);
235} 250}
236 251
237static struct option *long_options=NULL; 252static struct option *long_options = NULL;
238static int long_options_length=0; /* Length of array */ 253static int long_options_length = 0; /* Length of array */
239static int long_options_nr=0; /* Nr of used elements in array */ 254static int long_options_nr = 0; /* Nr of used elements in array */
240#define LONG_OPTIONS_INCR 10 255#define LONG_OPTIONS_INCR 10
241#define init_longopt() add_longopt(NULL,0) 256#define init_longopt() add_longopt(NULL,0)
242 257
243/* Register a long option. The contents of name is copied. */ 258/* Register a long option. The contents of name is copied. */
244void add_longopt(const char *name,int has_arg) 259static void add_longopt(const char *name, int has_arg)
245{ 260{
246 char *tmp; 261 char *tmp;
247 if (!name) { /* init */ 262 if (!name) {
263 /* init */
248 free(long_options); 264 free(long_options);
249 long_options=NULL; 265 long_options = NULL;
250 long_options_length=0; 266 long_options_length = 0;
251 long_options_nr=0; 267 long_options_nr = 0;
252 } 268 }
253 269
254 if (long_options_nr == long_options_length) { 270 if (long_options_nr == long_options_length) {
255 long_options_length += LONG_OPTIONS_INCR; 271 long_options_length += LONG_OPTIONS_INCR;
256 long_options=our_realloc(long_options, 272 long_options = our_realloc(long_options,
257 sizeof(struct option) * 273 sizeof(struct option) *
258 long_options_length); 274 long_options_length);
259 } 275 }
260 276
261 long_options[long_options_nr].name=NULL; 277 long_options[long_options_nr].name = NULL;
262 long_options[long_options_nr].has_arg=0; 278 long_options[long_options_nr].has_arg = 0;
263 long_options[long_options_nr].flag=NULL; 279 long_options[long_options_nr].flag = NULL;
264 long_options[long_options_nr].val=0; 280 long_options[long_options_nr].val = 0;
265 281
266 if (long_options_nr) { /* Not for init! */ 282 if (long_options_nr) {
283 /* Not for init! */
267 long_options[long_options_nr-1].has_arg=has_arg; 284 long_options[long_options_nr - 1].has_arg = has_arg;
268 long_options[long_options_nr-1].flag=NULL; 285 long_options[long_options_nr - 1].flag = NULL;
269 long_options[long_options_nr-1].val=LONG_OPT; 286 long_options[long_options_nr - 1].val = LONG_OPT;
270 tmp = our_malloc(strlen(name)+1); 287 tmp = our_malloc(strlen(name) + 1);
271 strcpy(tmp,name); 288 strcpy(tmp, name);
272 long_options[long_options_nr-1].name=tmp; 289 long_options[long_options_nr - 1].name = tmp;
273 } 290 }
274 long_options_nr++; 291 long_options_nr++;
275} 292}
276 293
277 294
278/* 295/*
279 * Register several long options. options is a string of long options, 296 * Register several long options. options is a string of long options,
280 * separated by commas or whitespace. 297 * separated by commas or whitespace. This nukes options!
281 * This nukes options!
282 */ 298 */
283void add_long_options(char *options) 299static void add_long_options(char *options)
284{ 300{
285 int arg_opt; 301 int arg_opt;
286 char *tokptr=strtok(options,", \t\n"); 302 char *tokptr = strtok(options, ", \t\n");
287 while (tokptr) { 303 while (tokptr) {
288 arg_opt=no_argument; 304 arg_opt = no_argument;
289 if (strlen(tokptr) > 0) { 305 if (strlen(tokptr) > 0) {
290 if (tokptr[strlen(tokptr)-1] == ':') { 306 if (tokptr[strlen(tokptr) - 1] == ':') {
291 if (tokptr[strlen(tokptr)-2] == ':') { 307 if (tokptr[strlen(tokptr) - 2] == ':') {
292 tokptr[strlen(tokptr)-2]='\0'; 308 tokptr[strlen(tokptr) - 2] = '\0';
293 arg_opt=optional_argument; 309 arg_opt = optional_argument;
294 } else { 310 } else {
295 tokptr[strlen(tokptr)-1]='\0'; 311 tokptr[strlen(tokptr) - 1] = '\0';
296 arg_opt=required_argument; 312 arg_opt = required_argument;
297 } 313 }
298 if (strlen(tokptr) == 0) 314 if (strlen(tokptr) == 0)
315 parse_error(_
299 parse_error(_("empty long option after " 316 ("empty long option after "
300 "-l or --long argument")); 317 "-l or --long argument"));
301 } 318 }
302 add_longopt(tokptr,arg_opt); 319 add_longopt(tokptr, arg_opt);
303 } 320 }
304 tokptr=strtok(NULL,", \t\n"); 321 tokptr = strtok(NULL, ", \t\n");
305 } 322 }
306} 323}
307 324
308void set_shell(const char *new_shell) 325static void set_shell(const char *new_shell)
309{ 326{
310 if (!strcmp(new_shell,"bash")) 327 if (!strcmp(new_shell, "bash"))
311 shell=BASH; 328 shell = BASH;
312 else if (!strcmp(new_shell,"tcsh")) 329 else if (!strcmp(new_shell, "tcsh"))
313 shell=TCSH; 330 shell = TCSH;
314 else if (!strcmp(new_shell,"sh")) 331 else if (!strcmp(new_shell, "sh"))
315 shell=BASH; 332 shell = BASH;
316 else if (!strcmp(new_shell,"csh")) 333 else if (!strcmp(new_shell, "csh"))
317 shell=TCSH; 334 shell = TCSH;
318 else 335 else
336 parse_error(_
319 parse_error(_("unknown shell after -s or --shell argument")); 337 ("unknown shell after -s or --shell argument"));
320} 338}
321 339
322void print_help(void) 340static void __attribute__ ((__noreturn__)) print_help(void)
323{ 341{
324 fputs(_("Usage: getopt optstring parameters\n"),stderr); 342 fputs(_("Usage: getopt optstring parameters\n"), stderr);
325 fputs(_(" getopt [options] [--] optstring parameters\n"),stderr); 343 fputs(_(" getopt [options] [--] optstring parameters\n"), stderr);
326 fputs(_(" getopt [options] -o|--options optstring [options] [--]\n"),stderr); 344 fputs(_(" getopt [options] -o|--options optstring [options] [--]\n"), stderr);
327 fputs(_(" parameters\n"),stderr); 345 fputs(_(" parameters\n"), stderr);
328 fputs(_(" -a, --alternative Allow long options starting with single -\n"),stderr); 346 fputs(_(" -a, --alternative Allow long options starting with single -\n"), stderr);
329 fputs(_(" -h, --help This small usage guide\n"),stderr); 347 fputs(_(" -h, --help This small usage guide\n"), stderr);
330 fputs(_(" -l, --longoptions=longopts Long options to be recognized\n"),stderr); 348 fputs(_(" -l, --longoptions=longopts Long options to be recognized\n"), stderr);
331 fputs(_(" -n, --name=progname The name under which errors are reported\n"),stderr); 349 fputs(_(" -n, --name=progname The name under which errors are reported\n"), stderr);
332 fputs(_(" -o, --options=optstring Short options to be recognized\n"),stderr); 350 fputs(_(" -o, --options=optstring Short options to be recognized\n"), stderr);
333 fputs(_(" -q, --quiet Disable error reporting by getopt(3)\n"),stderr); 351 fputs(_(" -q, --quiet Disable error reporting by getopt(3)\n"), stderr);
334 fputs(_(" -Q, --quiet-output No normal output\n"),stderr); 352 fputs(_(" -Q, --quiet-output No normal output\n"), stderr);
335 fputs(_(" -s, --shell=shell Set shell quoting conventions\n"),stderr); 353 fputs(_(" -s, --shell=shell Set shell quoting conventions\n"), stderr);
336 fputs(_(" -T, --test Test for getopt(1) version\n"),stderr); 354 fputs(_(" -T, --test Test for getopt(1) version\n"), stderr);
337 fputs(_(" -u, --unqote Do not quote the output\n"),stderr); 355 fputs(_(" -u, --unqote Do not quote the output\n"), stderr);
338 fputs(_(" -V, --version Output version information\n"),stderr); 356 fputs(_(" -V, --version Output version information\n"), stderr);
339 exit(2); 357 exit(PARAMETER_EXIT_CODE);
340} 358}
341
342/* Exit codes:
343 * 0) No errors, succesful operation.
344 * 1) getopt(3) returned an error.
345 * 2) A problem with parameter parsing for getopt(1).
346 * 3) Internal error, out of memory
347 * 4) Returned for -T
348 */
349
350static struct option longopts[]={ {"options",required_argument,NULL,'o'},
351 {"longoptions",required_argument,NULL,'l'},
352 {"quiet",no_argument,NULL,'q'},
353 {"quiet-output",no_argument,NULL,'Q'},
354 {"shell",required_argument,NULL,'s'},
355 {"test",no_argument,NULL,'T'},
356 {"unquoted",no_argument,NULL,'u'},
357 {"help",no_argument,NULL,'h'},
358 {"alternative",no_argument,NULL,'a'},
359 {"name",required_argument,NULL,'n'},
360 {"version",no_argument,NULL,'V'},
361 {NULL,0,NULL,0}
362 };
363
364/* Stop scanning as soon as a non-option argument is found! */
365static const char *shortopts="+ao:l:n:qQs:TuhV";
366 359
367int main(int argc, char *argv[]) 360int main(int argc, char *argv[])
368{ 361{
369 char *optstr=NULL; 362 char *optstr = NULL;
370 char *name=NULL; 363 char *name = NULL;
371 int opt; 364 int opt;
372 int compatible=0; 365 int compatible = 0;
373 366
367 /* Stop scanning as soon as a non-option argument is found! */
368 static const char *shortopts = "+ao:l:n:qQs:TuhV";
369 static const struct option longopts[] = {
370 {"options", required_argument, NULL, 'o'},
371 {"longoptions", required_argument, NULL, 'l'},
372 {"quiet", no_argument, NULL, 'q'},
373 {"quiet-output", no_argument, NULL, 'Q'},
374 {"shell", required_argument, NULL, 's'},
375 {"test", no_argument, NULL, 'T'},
376 {"unquoted", no_argument, NULL, 'u'},
377 {"help", no_argument, NULL, 'h'},
378 {"alternative", no_argument, NULL, 'a'},
379 {"name", required_argument, NULL, 'n'},
380 {"version", no_argument, NULL, 'V'},
381 {NULL, 0, NULL, 0}
382 };
374#if WITHOUT_GETTEXT 383#if WITHOUT_GETTEXT
375#else 384#else
376 setlocale(LC_ALL,""); 385 setlocale(LC_ALL, "");
377 bindtextdomain(PACKAGE, LOCALEDIR); 386 bindtextdomain(PACKAGE, LOCALEDIR);
378 textdomain(PACKAGE); 387 textdomain(PACKAGE);
379#endif 388#endif
380 389
381 init_longopt(); 390 init_longopt();
391 getopt_long_fp = getopt_long;
382 392
383 if (getenv("GETOPT_COMPATIBLE")) 393 if (getenv("GETOPT_COMPATIBLE"))
384 compatible=1; 394 compatible = 1;
385 395
386 if (argc == 1) 396 if (argc == 1) {
387 {
388 if (compatible) { 397 if (compatible) {
398 /*
389 /* For some reason, the original getopt gave no error 399 * For some reason, the original getopt gave no
390 when there were no arguments. */ 400 * error when there were no arguments.
401 */
391 printf(" --\n"); 402 printf(" --\n");
392 exit(0); 403 return EXIT_SUCCESS;
393 }
394 else 404 } else
395 parse_error(_("missing optstring argument")); 405 parse_error(_("missing optstring argument"));
396 } 406 }
397 407
408
398 if (argv[1][0] != '-' || compatible) { 409 if (argv[1][0] != '-' || compatible) {
399 quote=0; 410 quote = 0;
400 optstr=our_malloc(strlen(argv[1])+1); 411 optstr = our_malloc(strlen(argv[1]) + 1);
401 strcpy(optstr,argv[1]+strspn(argv[1],"-+")); 412 strcpy(optstr, argv[1] + strspn(argv[1], "-+"));
402 argv[1]=argv[0]; 413 argv[1] = argv[0];
403 exit(generate_output(argv+1,argc-1,optstr,long_options)); 414 return generate_output(argv + 1, argc - 1, optstr,
415 long_options);
404 } 416 }
405 417
418 while ((opt =
406 while ((opt=getopt_long(argc,argv,shortopts,longopts,NULL)) != EOF) 419 getopt_long(argc, argv, shortopts, longopts, NULL)) != EOF)
407 switch (opt) { 420 switch (opt) {
408 case 'a': 421 case 'a':
409 alternative=1; 422 getopt_long_fp = getopt_long_only;
410 break; 423 break;
411 case 'h': 424 case 'h':
412 print_help(); 425 print_help();
413 exit(0);
414 case 'o': 426 case 'o':
415 if (optstr) 427 if (optstr)
416 free(optstr); 428 free(optstr);
417 optstr=our_malloc(strlen(optarg)+1); 429 optstr = our_malloc(strlen(optarg)+1);
418 strcpy(optstr,optarg); 430 strcpy(optstr, optarg);
419 break; 431 break;
420 case 'l': 432 case 'l':
421 add_long_options(optarg); 433 add_long_options(optarg);
422 break; 434 break;
423 case 'n': 435 case 'n':
424 if (name) 436 if (name)
425 free(name); 437 free(name);
426 name=our_malloc(strlen(optarg)+1); 438 name = our_malloc(strlen(optarg)+1);
427 strcpy(name,optarg); 439 strcpy(name, optarg);
428 break; 440 break;
429 case 'q': 441 case 'q':
430 quiet_errors=1; 442 quiet_errors = 1;
431 break; 443 break;
432 case 'Q': 444 case 'Q':
433 quiet_output=1; 445 quiet_output = 1;
434 break; 446 break;
435 case 's': 447 case 's':
436 set_shell(optarg); 448 set_shell(optarg);
437 break; 449 break;
438 case 'T': 450 case 'T':
439 exit(4); 451 return TEST_EXIT_CODE;
440 case 'u': 452 case 'u':
441 quote=0; 453 quote = 0;
442 break; 454 break;
443 case 'V': 455 case 'V':
444 printf(_("getopt (enhanced) 1.1.3\n")); 456 printf(_("getopt (enhanced) 1.1.4\n"));
445 exit(0); 457 return EXIT_SUCCESS;
446 case '?': 458 case '?':
447 case ':': 459 case ':':
448 parse_error(NULL); 460 parse_error(NULL);
449 default: 461 default:
450 parse_error(_("internal error, contact the author.")); 462 parse_error(_("internal error, contact the author."));
451 } 463 }
452 464
453 if (!optstr) 465 if (!optstr) {
454 {
455 if (optind >= argc) 466 if (optind >= argc)
456 parse_error(_("missing optstring argument")); 467 parse_error(_("missing optstring argument"));
457 else { 468 else {
458 optstr=our_malloc(strlen(argv[optind])+1); 469 optstr=our_malloc(strlen(argv[optind])+1);
459 strcpy(optstr,argv[optind]); 470 strcpy(optstr, argv[optind]);
460 optind++; 471 optind++;
461 } 472 }
462 } 473 }
463 if (name) 474 if (name)
464 argv[optind-1]=name; 475 argv[optind - 1] = name;
465 else 476 else
466 argv[optind-1]=argv[0]; 477 argv[optind - 1] = argv[0];
467 exit(generate_output(argv+optind-1,argc-optind+1,optstr,long_options)); 478 return generate_output(argv + optind - 1, argc-optind + 1,
479 optstr, long_options);
468} 480}
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