1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2
3 Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996,
4 1997, 1998, 2003 Free Software Foundation, Inc.
5
6 This file is part of the GNU C Library.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation,
20 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #ifdef _LIBC
27 # include <getopt.h>
28 #else
29 # include "getopt.h"
30 #endif
31
32 #include <stdio.h>
33
34 /* Comment out all this code if we are using the GNU C Library, and are not
35 actually compiling the library itself. This code is part of the GNU C
36 Library, but also included in many other GNU distributions. Compiling
37 and linking in this code is a waste when using the GNU C library
38 (especially if it is a shared library). Rather than having every GNU
39 program understand `configure --with-gnu-libc' and omit the object files,
40 it is simpler to just do this in the source for each such file. */
41
42 #define GETOPT_INTERFACE_VERSION 2
43 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
44 #include <gnu-versions.h>
45 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
46 #define ELIDE_CODE
47 #endif
48 #endif
49
50 #ifndef ELIDE_CODE
51
52
53 /* This needs to come after some library #include
54 to get __GNU_LIBRARY__ defined. */
55 #ifdef __GNU_LIBRARY__
56 #include <stdlib.h>
57 #endif
58
59 #ifndef NULL
60 #define NULL 0
61 #endif
62
63 int
getopt_long(int argc,char * const * argv,const char * options,const struct option * long_options,int * opt_index)64 getopt_long (int argc,
65 char *const *argv,
66 const char *options,
67 const struct option *long_options,
68 int *opt_index)
69 {
70 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
71 }
72
73 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
74 If an option that starts with '-' (not '--') doesn't match a long option,
75 but does match a short option, it is parsed as a short option
76 instead. */
77
78 int
getopt_long_only(int argc,char * const * argv,const char * options,const struct option * long_options,int * opt_index)79 getopt_long_only (int argc,
80 char *const *argv,
81 const char *options,
82 const struct option *long_options,
83 int *opt_index)
84 {
85 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
86 }
87
88 # ifdef _LIBC
89 libc_hidden_def (getopt_long)
libc_hidden_def(getopt_long_only)90 libc_hidden_def (getopt_long_only)
91 # endif
92
93 #endif /* Not ELIDE_CODE. */
94
95 #ifdef TEST
96
97 #include <stdio.h>
98
99 int
100 main (int argc, char **argv)
101 {
102 int digit_optind = 0;
103
104 while (1)
105 {
106 int this_option_optind = optind ? optind : 1;
107 int option_index = 0;
108 static struct option long_options[] =
109 {
110 {"add", 1, 0, 0},
111 {"append", 0, 0, 0},
112 {"delete", 1, 0, 0},
113 {"verbose", 0, 0, 0},
114 {"create", 0, 0, 0},
115 {"file", 1, 0, 0},
116 {0, 0, 0, 0}
117 };
118
119 int c = getopt_long (argc, argv, "abc:d:0123456789",
120 long_options, &option_index);
121 if (c == -1)
122 break;
123
124 switch (c)
125 {
126 case 0:
127 printf ("option %s", long_options[option_index].name);
128 if (optarg)
129 printf (" with arg %s", optarg);
130 printf ("\n");
131 break;
132
133 case '0':
134 case '1':
135 case '2':
136 case '3':
137 case '4':
138 case '5':
139 case '6':
140 case '7':
141 case '8':
142 case '9':
143 if (digit_optind != 0 && digit_optind != this_option_optind)
144 printf ("digits occur in two different argv-elements.\n");
145 digit_optind = this_option_optind;
146 printf ("option %c\n", c);
147 break;
148
149 case 'a':
150 printf ("option a\n");
151 break;
152
153 case 'b':
154 printf ("option b\n");
155 break;
156
157 case 'c':
158 printf ("option c with value `%s'\n", optarg);
159 break;
160
161 case 'd':
162 printf ("option d with value `%s'\n", optarg);
163 break;
164
165 case '?':
166 break;
167
168 default:
169 printf ("?? getopt returned character code 0%o ??\n", c);
170 }
171 }
172
173 if (optind < argc)
174 {
175 printf ("non-option ARGV-elements: ");
176 while (optind < argc)
177 printf ("%s ", argv[optind++]);
178 printf ("\n");
179 }
180
181 exit (0);
182 }
183
184 #endif /* TEST */
185