/[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) 1997-2014 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 along
16 along with this program; if not, write to the Free Software 16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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
24 * Fixed minor typo (CSH instead of TCSH) 24 * Fixed minor typo (CSH instead of TCSH)
25 * Version 1.0.1: Tue Jun 3 1998 25 * Version 1.0.1: Tue Jun 3 1998
26 * Fixed sizeof instead of strlen bug 26 * Fixed sizeof instead of strlen bug
27 * Bumped up the version number to 1.0.1 27 * Bumped up the version number to 1.0.1
… …
31 * Version 1.0.5: Tue Jun 22 1999 31 * Version 1.0.5: Tue Jun 22 1999
32 * Make -u option work (not present) 32 * Make -u option work (not present)
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 Miśkiewicz
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
40 * Version 1.1.5: Sun Aug 12 2012
41 * Sync with util-linux-2.21, fixed build problems, many new translations
42 * Version 1.1.6: ??? 2014
43 * Sync with util-linux git 20141120, detect ambiguous long options, fix
44 * backslash problem in tcsh
38 */ 45 */
46
47/* Exit codes:
48 * 0) No errors, successful operation.
49 * 1) getopt(3) returned an error.
50 * 2) A problem with parameter parsing for getopt(1).
51 * 3) Internal error, out of memory
52 * 4) Returned for -T
53 */
54#define GETOPT_EXIT_CODE 1
55#define PARAMETER_EXIT_CODE 2
56#define XALLOC_EXIT_CODE 3
57#define TEST_EXIT_CODE 4
39 58
40#include <stdio.h> 59#include <stdio.h>
41#include <stdlib.h> 60#include <stdlib.h>
42#include <string.h> 61#include <string.h>
43#include <unistd.h> 62#include <unistd.h>
… …
47#include <getopt.h> 66#include <getopt.h>
48#else 67#else
49#include "getopt.h" 68#include "getopt.h"
50#endif 69#endif
51 70
71#include "util-linux-compat.h"
52#include "nls.h" 72#include "nls.h"
73#include "xalloc.h"
53 74
54/* NON_OPT is the code that is returned when a non-option is found in '+' 75/* NON_OPT is the code that is returned when a non-option is found in '+'
55 mode */ 76 * mode */
56#define NON_OPT 1 77#define NON_OPT 1
57/* LONG_OPT is the code that is returned when a long option is found. */ 78/* LONG_OPT is the code that is returned when a long option is found. */
58#define LONG_OPT 2 79#define LONG_OPT 0
59 80
60/* The shells recognized. */ 81/* The shells recognized. */
61typedef enum {BASH,TCSH} shell_t; 82typedef enum { BASH, TCSH } shell_t;
62 83
63 84
64/* Some global variables that tells us how to parse. */ 85/* Some global variables that tells us how to parse. */
65shell_t shell=BASH; /* The shell we generate output for. */ 86static shell_t shell = BASH; /* The shell we generate output for. */
66int quiet_errors=0; /* 0 is not quiet. */ 87static int quiet_errors = 0; /* 0 is not quiet. */
67int quiet_output=0; /* 0 is not quiet. */ 88static int quiet_output = 0; /* 0 is not quiet. */
68int quote=1; /* 1 is do quote. */ 89static int quote = 1; /* 1 is do quote. */
69int alternative=0; /* 0 is getopt_long, 1 is getopt_long_only */ 90
91/* Allow changing which getopt is in use with function pointer */
92int (*getopt_long_fp) (int argc, char *const *argv, const char *optstr,
93 const struct option * longopts, int *longindex);
70 94
71/* Function prototypes */ 95/* Function prototypes */
72void *our_malloc(size_t size);
73void *our_realloc(void *ptr, size_t size);
74const char *normalize(const char *arg); 96static const char *normalize(const char *arg);
75int generate_output(char * argv[],int argc,const char *optstr, 97static int generate_output(char *argv[], int argc, const char *optstr,
76 const struct option *longopts); 98 const struct option *longopts);
77int main(int argc, char *argv[]);
78void parse_error(const char *message); 99static void parse_error(const char *message);
79void add_long_options(char *options); 100static void add_long_options(char *options);
80void add_longopt(const char *name,int has_arg); 101static void add_longopt(const char *name, int has_arg);
81void print_help(void); 102static void print_help(void);
82void set_shell(const char *new_shell); 103static void set_shell(const char *new_shell);
83void set_initial_shell(void);
84 104
85void *our_malloc(size_t size)
86{
87 void *ret=malloc(size);
88 if (! ret) {
89 fprintf(stderr,_("%s: Out of memory!\n"),"getopt");
90 exit(3);
91 }
92 return(ret);
93}
94
95void *our_realloc(void *ptr, size_t size)
96{
97 void *ret=realloc(ptr,size);
98 if (! ret && size) {
99 fprintf(stderr,_("%s: Out of memory!\n"),"getopt");
100 exit(3);
101 }
102 return(ret);
103}
104
105/* 105/*
106 * This function 'normalizes' a single argument: it puts single quotes around 106 * This function 'normalizes' a single argument: it puts single quotes
107 * it and escapes other special characters. If quote is false, it just 107 * around it and escapes other special characters. If quote is false, it
108 * returns its argument. 108 * just returns its argument.
109 *
109 * Bash only needs special treatment for single quotes; tcsh also recognizes 110 * Bash only needs special treatment for single quotes; tcsh also recognizes
110 * exclamation marks within single quotes, and nukes whitespace. 111 * exclamation marks within single quotes, and nukes whitespace. This
111 * This function returns a pointer to a buffer that is overwritten by 112 * function returns a pointer to a buffer that is overwritten by each call.
112 * each call.
113 */ 113 */
114const char *normalize(const char *arg) 114static const char *normalize(const char *arg)
115{ 115{
116 static char *BUFFER=NULL; 116 static char *BUFFER = NULL;
117 const char *argptr=arg; 117 const char *argptr = arg;
118 char *bufptr; 118 char *bufptr;
119 119
120 if (BUFFER != NULL)
121 free(BUFFER); 120 free(BUFFER);
122 121
123 if (!quote) { /* Just copy arg */ 122 if (!quote) {
123 /* Just copy arg */
124 BUFFER=our_malloc(strlen(arg)+1); 124 BUFFER = xmalloc(strlen(arg) + 1);
125
126 strcpy(BUFFER,arg); 125 strcpy(BUFFER, arg);
127 return BUFFER; 126 return BUFFER;
128 } 127 }
129 128
129 /*
130 /* Each character in arg may take upto four characters in the result: 130 * Each character in arg may take up to four characters in the
131 For a quote we need a closing quote, a backslash, a quote and an 131 * 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, 132 * and an opening quote! We need also the global opening and closing
133 and one extra character for '\0'. */ 133 * quote, and one extra character for '\0'.
134 */
134 BUFFER=our_malloc(strlen(arg)*4+3); 135 BUFFER = xmalloc(strlen(arg) * 4 + 3);
135 136
136 bufptr=BUFFER; 137 bufptr = BUFFER;
137 *bufptr++='\''; 138 *bufptr++ = '\'';
138 139
139 while (*argptr) { 140 while (*argptr) {
140 if (*argptr == '\'') { 141 if (*argptr == '\'') {
141 /* Quote: replace it with: '\'' */ 142 /* Quote: replace it with: '\'' */
142 *bufptr++='\''; 143 *bufptr++ = '\'';
143 *bufptr++='\\'; 144 *bufptr++ = '\\';
144 *bufptr++='\''; 145 *bufptr++ = '\'';
145 *bufptr++='\''; 146 *bufptr++ = '\'';
147 } else if (shell == TCSH && *argptr == '\\') {
148 /* Backslash: replace it with: '\\' */
149 *bufptr++ = '\\';
150 *bufptr++ = '\\';
146 } else if (shell==TCSH && *argptr=='!') { 151 } else if (shell == TCSH && *argptr == '!') {
147 /* Exclamation mark: replace it with: \! */ 152 /* Exclamation mark: replace it with: \! */
148 *bufptr++='\''; 153 *bufptr++ = '\'';
149 *bufptr++='\\'; 154 *bufptr++ = '\\';
150 *bufptr++='!'; 155 *bufptr++ = '!';
151 *bufptr++='\''; 156 *bufptr++ = '\'';
152 } else if (shell==TCSH && *argptr=='\n') { 157 } else if (shell == TCSH && *argptr == '\n') {
153 /* Newline: replace it with: \n */ 158 /* Newline: replace it with: \n */
154 *bufptr++='\\'; 159 *bufptr++ = '\\';
155 *bufptr++='n'; 160 *bufptr++ = 'n';
156 } else if (shell==TCSH && isspace(*argptr)) { 161 } else if (shell == TCSH && isspace(*argptr)) {
157 /* Non-newline whitespace: replace it with \<ws> */ 162 /* Non-newline whitespace: replace it with \<ws> */
158 *bufptr++='\''; 163 *bufptr++ = '\'';
159 *bufptr++='\\'; 164 *bufptr++ = '\\';
160 *bufptr++=*argptr; 165 *bufptr++ = *argptr;
161 *bufptr++='\''; 166 *bufptr++ = '\'';
162 } else 167 } else
163 /* Just copy */ 168 /* Just copy */
164 *bufptr++=*argptr; 169 *bufptr++ = *argptr;
165 argptr++; 170 argptr++;
166 } 171 }
167 *bufptr++='\''; 172 *bufptr++ = '\'';
168 *bufptr++='\0'; 173 *bufptr++ = '\0';
169 return BUFFER; 174 return BUFFER;
170} 175}
171 176
172/* 177/*
173 * Generate the output. argv[0] is the program name (used for reporting errors). 178 * 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 179 * 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), 180 * 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. 181 * optstr must contain the short options, and longopts the long options.
177 * Other settings are found in global variables. 182 * Other settings are found in global variables.
178 */ 183 */
179int generate_output(char * argv[],int argc,const char *optstr, 184static int generate_output(char *argv[], int argc, const char *optstr,
180 const struct option *longopts) 185 const struct option *longopts)
181{ 186{
182 int exit_code = 0; /* We assume everything will be OK */ 187 int exit_code = EXIT_SUCCESS; /* Assume everything will be OK */
183 int opt; 188 int opt;
184 int longindex; 189 int longindex;
185 const char *charptr; 190 const char *charptr;
186 191
187 if (quiet_errors) /* No error reporting from getopt(3) */ 192 if (quiet_errors)
193 /* No error reporting from getopt(3) */
188 opterr=0; 194 opterr = 0;
189 optind=0; /* Reset getopt(3) */ 195 /* Reset getopt(3) */
196 optind = 0;
190 197
191 while ((opt = (alternative? 198 while ((opt =
192 getopt_long_only(argc,argv,optstr,longopts,&longindex):
193 getopt_long(argc,argv,optstr,longopts,&longindex))) 199 (getopt_long_fp(argc, argv, optstr, longopts, &longindex)))
194 != EOF) 200 != EOF)
195 if (opt == '?' || opt == ':' ) 201 if (opt == '?' || opt == ':')
196 exit_code = 1; 202 exit_code = GETOPT_EXIT_CODE;
197 else if (!quiet_output) 203 else if (!quiet_output) {
198 {
199 if (opt == LONG_OPT) { 204 if (opt == LONG_OPT) {
200 printf(" --%s",longopts[longindex].name); 205 printf(" --%s", longopts[longindex].name);
201 if (longopts[longindex].has_arg) 206 if (longopts[longindex].has_arg)
202 printf(" %s",
203 normalize(optarg?optarg:"")); 207 printf(" %s", normalize(optarg ? optarg : ""));
204 } else if (opt == NON_OPT) 208 } else if (opt == NON_OPT)
205 printf(" %s",normalize(optarg)); 209 printf(" %s", normalize(optarg ? optarg : ""));
206 else { 210 else {
207 printf(" -%c",opt); 211 printf(" -%c", opt);
208 charptr = strchr(optstr,opt); 212 charptr = strchr(optstr, opt);
209 if (charptr != NULL && *++charptr == ':') 213 if (charptr != NULL && *++charptr == ':')
210 printf(" %s",
211 normalize(optarg?optarg:"")); 214 printf(" %s", normalize(optarg ? optarg : ""));
212 } 215 }
213 } 216 }
214 217
215 if (! quiet_output) { 218 if (!quiet_output) {
216 printf(" --"); 219 printf(" --");
217 while (optind < argc) 220 while (optind < argc)
218 printf(" %s",normalize(argv[optind++])); 221 printf(" %s", normalize(argv[optind++]));
219 printf("\n"); 222 printf("\n");
220 } 223 }
221 return exit_code; 224 return exit_code;
222} 225}
223 226
224/* 227/*
225 * Report an error when parsing getopt's own arguments. 228 * 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 229 * we already sent a message, we just exit with a helpful hint.
227 * hint.
228 */ 230 */
229void parse_error(const char *message) 231static void __attribute__ ((__noreturn__)) parse_error(const char *message)
230{ 232{
231 if (message) 233 if (message)
232 fprintf(stderr,"getopt: %s\n",message); 234 warnx("%s", message);
233 fputs(_("Try `getopt --help' for more information.\n"),stderr); 235 fprintf(stderr, _("Try `%s --help' for more information.\n"),
234 exit(2); 236 program_invocation_short_name);
237 exit(PARAMETER_EXIT_CODE);
235} 238}
236 239
237static struct option *long_options=NULL; 240static struct option *long_options = NULL;
238static int long_options_length=0; /* Length of array */ 241static int long_options_length = 0; /* Length of array */
239static int long_options_nr=0; /* Nr of used elements in array */ 242static int long_options_nr = 0; /* Nr of used elements in array */
240#define LONG_OPTIONS_INCR 10 243#define LONG_OPTIONS_INCR 10
241#define init_longopt() add_longopt(NULL,0) 244#define init_longopt() add_longopt(NULL,0)
242 245
243/* Register a long option. The contents of name is copied. */ 246/* Register a long option. The contents of name is copied. */
244void add_longopt(const char *name,int has_arg) 247static void add_longopt(const char *name, int has_arg)
245{ 248{
246 char *tmp; 249 char *tmp;
247 if (!name) { /* init */ 250 static int flag;
251
252 if (!name) {
253 /* init */
248 free(long_options); 254 free(long_options);
249 long_options=NULL; 255 long_options = NULL;
250 long_options_length=0; 256 long_options_length = 0;
251 long_options_nr=0; 257 long_options_nr = 0;
252 } 258 }
253 259
254 if (long_options_nr == long_options_length) { 260 if (long_options_nr == long_options_length) {
255 long_options_length += LONG_OPTIONS_INCR; 261 long_options_length += LONG_OPTIONS_INCR;
256 long_options=our_realloc(long_options, 262 long_options = xrealloc(long_options,
257 sizeof(struct option) * 263 sizeof(struct option) *
258 long_options_length); 264 long_options_length);
259 } 265 }
260 266
261 long_options[long_options_nr].name=NULL; 267 long_options[long_options_nr].name = NULL;
262 long_options[long_options_nr].has_arg=0; 268 long_options[long_options_nr].has_arg = 0;
263 long_options[long_options_nr].flag=NULL; 269 long_options[long_options_nr].flag = NULL;
264 long_options[long_options_nr].val=0; 270 long_options[long_options_nr].val = 0;
265 271
266 if (long_options_nr) { /* Not for init! */ 272 if (long_options_nr && name) {
273 /* Not for init! */
267 long_options[long_options_nr-1].has_arg=has_arg; 274 long_options[long_options_nr - 1].has_arg = has_arg;
268 long_options[long_options_nr-1].flag=NULL; 275 long_options[long_options_nr - 1].flag = &flag;
269 long_options[long_options_nr-1].val=LONG_OPT; 276 long_options[long_options_nr - 1].val = long_options_nr;
270 tmp = our_malloc(strlen(name)+1); 277 tmp = xmalloc(strlen(name) + 1);
271 strcpy(tmp,name); 278 strcpy(tmp, name);
272 long_options[long_options_nr-1].name=tmp; 279 long_options[long_options_nr - 1].name = tmp;
273 } 280 }
274 long_options_nr++; 281 long_options_nr++;
275} 282}
276
277 283
284
278/* 285/*
279 * Register several long options. options is a string of long options, 286 * Register several long options. options is a string of long options,
280 * separated by commas or whitespace. 287 * separated by commas or whitespace. This nukes options!
281 * This nukes options!
282 */ 288 */
283void add_long_options(char *options) 289static void add_long_options(char *options)
284{ 290{
285 int arg_opt; 291 int arg_opt;
286 char *tokptr=strtok(options,", \t\n"); 292 char *tokptr = strtok(options, ", \t\n");
287 while (tokptr) { 293 while (tokptr) {
288 arg_opt=no_argument; 294 arg_opt = no_argument;
289 if (strlen(tokptr) > 0) { 295 if (strlen(tokptr) > 0) {
290 if (tokptr[strlen(tokptr)-1] == ':') { 296 if (tokptr[strlen(tokptr) - 1] == ':') {
291 if (tokptr[strlen(tokptr)-2] == ':') { 297 if (tokptr[strlen(tokptr) - 2] == ':') {
292 tokptr[strlen(tokptr)-2]='\0'; 298 tokptr[strlen(tokptr) - 2] = '\0';
293 arg_opt=optional_argument; 299 arg_opt = optional_argument;
294 } else { 300 } else {
295 tokptr[strlen(tokptr)-1]='\0'; 301 tokptr[strlen(tokptr) - 1] = '\0';
296 arg_opt=required_argument; 302 arg_opt = required_argument;
297 } 303 }
298 if (strlen(tokptr) == 0) 304 if (strlen(tokptr) == 0)
305 parse_error(_
299 parse_error(_("empty long option after " 306 ("empty long option after "
300 "-l or --long argument")); 307 "-l or --long argument"));
301 } 308 }
302 add_longopt(tokptr,arg_opt); 309 add_longopt(tokptr, arg_opt);
303 } 310 }
304 tokptr=strtok(NULL,", \t\n"); 311 tokptr = strtok(NULL, ", \t\n");
305 } 312 }
306} 313}
307 314
308void set_shell(const char *new_shell) 315static void set_shell(const char *new_shell)
309{ 316{
310 if (!strcmp(new_shell,"bash")) 317 if (!strcmp(new_shell, "bash"))
311 shell=BASH; 318 shell = BASH;
312 else if (!strcmp(new_shell,"tcsh")) 319 else if (!strcmp(new_shell, "tcsh"))
313 shell=TCSH; 320 shell = TCSH;
314 else if (!strcmp(new_shell,"sh")) 321 else if (!strcmp(new_shell, "sh"))
315 shell=BASH; 322 shell = BASH;
316 else if (!strcmp(new_shell,"csh")) 323 else if (!strcmp(new_shell, "csh"))
317 shell=TCSH; 324 shell = TCSH;
318 else 325 else
326 parse_error(_
319 parse_error(_("unknown shell after -s or --shell argument")); 327 ("unknown shell after -s or --shell argument"));
320} 328}
321 329
322void print_help(void) 330static void __attribute__ ((__noreturn__)) print_help(void)
323{ 331{
324 fputs(_("Usage: getopt optstring parameters\n"),stderr); 332 fputs(USAGE_HEADER, stderr);
325 fputs(_(" getopt [options] [--] optstring parameters\n"),stderr); 333 fprintf(stderr, _(
326 fputs(_(" getopt [options] -o|--options optstring [options] [--]\n"),stderr); 334 " %1$s optstring parameters\n"
327 fputs(_(" parameters\n"),stderr); 335 " %1$s [options] [--] optstring parameters\n"
336 " %1$s [options] -o|--options optstring [options] [--] parameters\n"),
337 program_invocation_short_name);
338
339 fputs(USAGE_OPTIONS, stderr);
328 fputs(_(" -a, --alternative Allow long options starting with single -\n"),stderr); 340 fputs(_(" -a, --alternative Allow long options starting with single -\n"), stderr);
329 fputs(_(" -h, --help This small usage guide\n"),stderr);
330 fputs(_(" -l, --longoptions=longopts Long options to be recognized\n"),stderr); 341 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); 342 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); 343 fputs(_(" -o, --options <optstring> Short options to be recognized\n"), stderr);
333 fputs(_(" -q, --quiet Disable error reporting by getopt(3)\n"),stderr); 344 fputs(_(" -q, --quiet Disable error reporting by getopt(3)\n"), stderr);
334 fputs(_(" -Q, --quiet-output No normal output\n"),stderr); 345 fputs(_(" -Q, --quiet-output No normal output\n"), stderr);
335 fputs(_(" -s, --shell=shell Set shell quoting conventions\n"),stderr); 346 fputs(_(" -s, --shell <shell> Set shell quoting conventions\n"), stderr);
336 fputs(_(" -T, --test Test for getopt(1) version\n"),stderr); 347 fputs(_(" -T, --test Test for getopt(1) version\n"), stderr);
337 fputs(_(" -u, --unqote Do not quote the output\n"),stderr); 348 fputs(_(" -u, --unquoted Do not quote the output\n"), stderr);
338 fputs(_(" -V, --version Output version information\n"),stderr); 349 fputs(USAGE_SEPARATOR, stderr);
339 exit(2); 350 fputs(USAGE_HELP, stderr);
351 fputs(USAGE_VERSION, stderr);
352 fprintf(stderr, USAGE_MAN_TAIL("getopt(1)"));
353 exit(PARAMETER_EXIT_CODE);
340} 354}
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";
366 355
367int main(int argc, char *argv[]) 356int main(int argc, char *argv[])
368{ 357{
369 char *optstr=NULL; 358 char *optstr = NULL;
370 char *name=NULL; 359 char *name = NULL;
371 int opt; 360 int opt;
372 int compatible=0; 361 int compatible = 0;
373 362
374#if WITHOUT_GETTEXT 363 /* Stop scanning as soon as a non-option argument is found! */
375#else 364 static const char *shortopts = "+ao:l:n:qQs:TuhV";
365 static const struct option longopts[] = {
366 {"options", required_argument, NULL, 'o'},
367 {"longoptions", required_argument, NULL, 'l'},
368 {"quiet", no_argument, NULL, 'q'},
369 {"quiet-output", no_argument, NULL, 'Q'},
370 {"shell", required_argument, NULL, 's'},
371 {"test", no_argument, NULL, 'T'},
372 {"unquoted", no_argument, NULL, 'u'},
373 {"help", no_argument, NULL, 'h'},
374 {"alternative", no_argument, NULL, 'a'},
375 {"name", required_argument, NULL, 'n'},
376 {"version", no_argument, NULL, 'V'},
377 {NULL, 0, NULL, 0}
378 };
379
376 setlocale(LC_ALL,""); 380 setlocale(LC_ALL, "");
377 bindtextdomain(PACKAGE, LOCALEDIR); 381 bindtextdomain(PACKAGE, LOCALEDIR);
378 textdomain(PACKAGE); 382 textdomain(PACKAGE);
379#endif
380 383
381 init_longopt(); 384 init_longopt();
385 getopt_long_fp = getopt_long;
382 386
383 if (getenv("GETOPT_COMPATIBLE")) 387 if (getenv("GETOPT_COMPATIBLE"))
384 compatible=1; 388 compatible = 1;
385 389
386 if (argc == 1) 390 if (argc == 1) {
387 {
388 if (compatible) { 391 if (compatible) {
392 /*
389 /* For some reason, the original getopt gave no error 393 * For some reason, the original getopt gave no
390 when there were no arguments. */ 394 * error when there were no arguments.
395 */
391 printf(" --\n"); 396 printf(" --\n");
392 exit(0); 397 return EXIT_SUCCESS;
393 }
394 else 398 } else
395 parse_error(_("missing optstring argument")); 399 parse_error(_("missing optstring argument"));
396 } 400 }
397 401
398 if (argv[1][0] != '-' || compatible) { 402 if (argv[1][0] != '-' || compatible) {
399 quote=0; 403 quote = 0;
400 optstr=our_malloc(strlen(argv[1])+1); 404 optstr = xmalloc(strlen(argv[1]) + 1);
401 strcpy(optstr,argv[1]+strspn(argv[1],"-+")); 405 strcpy(optstr, argv[1] + strspn(argv[1], "-+"));
402 argv[1]=argv[0]; 406 argv[1] = argv[0];
403 exit(generate_output(argv+1,argc-1,optstr,long_options)); 407 return generate_output(argv + 1, argc - 1, optstr,
408 long_options);
404 } 409 }
405 410
411 while ((opt =
406 while ((opt=getopt_long(argc,argv,shortopts,longopts,NULL)) != EOF) 412 getopt_long(argc, argv, shortopts, longopts, NULL)) != EOF)
407 switch (opt) { 413 switch (opt) {
408 case 'a': 414 case 'a':
409 alternative=1; 415 getopt_long_fp = getopt_long_only;
410 break; 416 break;
411 case 'h': 417 case 'h':
412 print_help(); 418 print_help();
413 exit(0);
414 case 'o': 419 case 'o':
415 if (optstr)
416 free(optstr); 420 free(optstr);
417 optstr=our_malloc(strlen(optarg)+1); 421 optstr = xmalloc(strlen(optarg) + 1);
418 strcpy(optstr,optarg); 422 strcpy(optstr, optarg);
419 break; 423 break;
420 case 'l': 424 case 'l':
421 add_long_options(optarg); 425 add_long_options(optarg);
422 break; 426 break;
423 case 'n': 427 case 'n':
424 if (name)
425 free(name); 428 free(name);
426 name=our_malloc(strlen(optarg)+1); 429 name = xmalloc(strlen(optarg) + 1);
427 strcpy(name,optarg); 430 strcpy(name, optarg);
428 break; 431 break;
429 case 'q': 432 case 'q':
430 quiet_errors=1; 433 quiet_errors = 1;
431 break; 434 break;
432 case 'Q': 435 case 'Q':
433 quiet_output=1; 436 quiet_output = 1;
434 break; 437 break;
435 case 's': 438 case 's':
436 set_shell(optarg); 439 set_shell(optarg);
437 break; 440 break;
438 case 'T': 441 case 'T':
439 exit(4); 442 return TEST_EXIT_CODE;
440 case 'u': 443 case 'u':
441 quote=0; 444 quote = 0;
442 break; 445 break;
443 case 'V': 446 case 'V':
444 printf(_("getopt (enhanced) 1.1.3\n")); 447 printf(UTIL_LINUX_VERSION);
445 exit(0); 448 return EXIT_SUCCESS;
446 case '?': 449 case '?':
447 case ':': 450 case ':':
448 parse_error(NULL); 451 parse_error(NULL);
449 default: 452 default:
450 parse_error(_("internal error, contact the author.")); 453 parse_error(_("internal error, contact the author."));
451 } 454 }
452 455
453 if (!optstr) 456 if (!optstr) {
454 {
455 if (optind >= argc) 457 if (optind >= argc)
456 parse_error(_("missing optstring argument")); 458 parse_error(_("missing optstring argument"));
457 else { 459 else {
458 optstr=our_malloc(strlen(argv[optind])+1); 460 optstr = xmalloc(strlen(argv[optind]) + 1);
459 strcpy(optstr,argv[optind]); 461 strcpy(optstr, argv[optind]);
460 optind++; 462 optind++;
461 } 463 }
462 } 464 }
463 if (name) 465 if (name)
464 argv[optind-1]=name; 466 argv[optind - 1] = name;
465 else 467 else
466 argv[optind-1]=argv[0]; 468 argv[optind - 1] = argv[0];
467 exit(generate_output(argv+optind-1,argc-optind+1,optstr,long_options)); 469
470 return generate_output(argv + optind - 1, argc-optind + 1,
471 optstr, long_options);
468} 472}
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