1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987-1994,1996-1998,2004,2009 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
19
20 #ifdef HAVE_CONFIG_H
21 #include <config.h>
22 #endif
23
24 #ifdef _LIBC
25 # include <getopt.h>
26 #else
27 # include "getopt.h"
28 #endif
29 #include "getopt_int.h"
30
31 #include <stdio.h>
32
33 /* Comment out all this code if we are using the GNU C Library, and are not
34 actually compiling the library itself. This code is part of the GNU C
35 Library, but also included in many other GNU distributions. Compiling
36 and linking in this code is a waste when using the GNU C library
37 (especially if it is a shared library). Rather than having every GNU
38 program understand `configure --with-gnu-libc' and omit the object files,
39 it is simpler to just do this in the source for each such file. */
40
41 #define GETOPT_INTERFACE_VERSION 2
42 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
43 #include <gnu-versions.h>
44 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
45 #define ELIDE_CODE
46 #endif
47 #endif
48
49 #ifndef ELIDE_CODE
50
51
52 /* This needs to come after some library #include
53 to get __GNU_LIBRARY__ defined. */
54 #ifdef __GNU_LIBRARY__
55 #include <stdlib.h>
56 #endif
57
58 #ifndef NULL
59 #define NULL 0
60 #endif
61
62 int
getopt_long(int argc,char * const * argv,const char * options,const struct option * long_options,int * opt_index)63 getopt_long (int argc, char *const *argv, const char *options,
64 const struct option *long_options, int *opt_index)
65 {
66 return _getopt_internal (argc, argv, options, long_options, opt_index, 0, 0);
67 }
68
69 int
_getopt_long_r(int argc,char * const * argv,const char * options,const struct option * long_options,int * opt_index,struct _getopt_data * d)70 _getopt_long_r (int argc, char *const *argv, const char *options,
71 const struct option *long_options, int *opt_index,
72 struct _getopt_data *d)
73 {
74 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
75 0, d, 0);
76 }
77
78 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
79 If an option that starts with '-' (not '--') doesn't match a long option,
80 but does match a short option, it is parsed as a short option
81 instead. */
82
83 int
getopt_long_only(int argc,char * const * argv,const char * options,const struct option * long_options,int * opt_index)84 getopt_long_only (int argc, char *const *argv, const char *options,
85 const struct option *long_options, int *opt_index)
86 {
87 return _getopt_internal (argc, argv, options, long_options, opt_index, 1, 0);
88 }
89
90 int
_getopt_long_only_r(int argc,char * const * argv,const char * options,const struct option * long_options,int * opt_index,struct _getopt_data * d)91 _getopt_long_only_r (int argc, char *const *argv, const char *options,
92 const struct option *long_options, int *opt_index,
93 struct _getopt_data *d)
94 {
95 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
96 1, d, 0);
97 }
98
99 #endif /* Not ELIDE_CODE. */
100
101 #ifdef TEST
102
103 #include <stdio.h>
104
105 int
main(int argc,char ** argv)106 main (int argc, char **argv)
107 {
108 int c;
109 int digit_optind = 0;
110
111 while (1)
112 {
113 int this_option_optind = optind ? optind : 1;
114 int option_index = 0;
115 static struct option long_options[] =
116 {
117 {"add", 1, 0, 0},
118 {"append", 0, 0, 0},
119 {"delete", 1, 0, 0},
120 {"verbose", 0, 0, 0},
121 {"create", 0, 0, 0},
122 {"file", 1, 0, 0},
123 {0, 0, 0, 0}
124 };
125
126 c = getopt_long (argc, argv, "abc:d:0123456789",
127 long_options, &option_index);
128 if (c == -1)
129 break;
130
131 switch (c)
132 {
133 case 0:
134 printf ("option %s", long_options[option_index].name);
135 if (optarg)
136 printf (" with arg %s", optarg);
137 printf ("\n");
138 break;
139
140 case '0':
141 case '1':
142 case '2':
143 case '3':
144 case '4':
145 case '5':
146 case '6':
147 case '7':
148 case '8':
149 case '9':
150 if (digit_optind != 0 && digit_optind != this_option_optind)
151 printf ("digits occur in two different argv-elements.\n");
152 digit_optind = this_option_optind;
153 printf ("option %c\n", c);
154 break;
155
156 case 'a':
157 printf ("option a\n");
158 break;
159
160 case 'b':
161 printf ("option b\n");
162 break;
163
164 case 'c':
165 printf ("option c with value `%s'\n", optarg);
166 break;
167
168 case 'd':
169 printf ("option d with value `%s'\n", optarg);
170 break;
171
172 case '?':
173 break;
174
175 default:
176 printf ("?? getopt returned character code 0%o ??\n", c);
177 }
178 }
179
180 if (optind < argc)
181 {
182 printf ("non-option ARGV-elements: ");
183 while (optind < argc)
184 printf ("%s ", argv[optind++]);
185 printf ("\n");
186 }
187
188 exit (0);
189 }
190
191 #endif /* TEST */
192