1 /*
2 NOTE:
3 I cannot get the vanilla getopt code to work (i.e. compile only what
4 is needed and not duplicate symbols found in the standard library)
5 on all the platforms that FLAC supports. In particular the gating
6 of code with the ELIDE_CODE #define is not accurate enough on systems
7 that are POSIX but not glibc. If someone has a patch that works on
8 GNU/Linux, Darwin, AND Solaris please submit it on the project page:
9 https://sourceforge.net/p/flac/patches/
10
11 In the meantime I have munged the global symbols and removed gates
12 around code, while at the same time trying to touch the original as
13 little as possible.
14 */
15 /* getopt_long and getopt_long_only entry points for GNU getopt.
16 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
17 Free Software Foundation, Inc.
18 This file is part of the GNU C Library.
19
20 The GNU C Library is free software; you can redistribute it and/or
21 modify it under the terms of the GNU Library General Public License as
22 published by the Free Software Foundation; either version 2 of the
23 License, or (at your option) any later version.
24
25 The GNU C Library is distributed in the hope that it will be useful,
26 but WITHOUT ANY WARRANTY; without even the implied warranty of
27 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
28 Library General Public License for more details.
29
30 You should have received a copy of the GNU Library General Public
31 License along with the GNU C Library; see the file COPYING.LIB. If not,
32 write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
33 Boston, MA 02110-1301, USA. */
34
35 #ifdef HAVE_CONFIG_H
36 # include <config.h>
37 #endif
38
39 #include "share/getopt.h"
40 /*[JEC] was:#include "getopt.h"*/
41
42 #if !defined __STDC__ || !__STDC__
43 /* This is a separate conditional since some stdc systems
44 reject `defined (const)'. */
45 #ifndef const
46 #define const
47 #endif
48 #endif
49
50 #include <stdio.h>
51
52 /* Comment out all this code if we are using the GNU C Library, and are not
53 actually compiling the library itself. This code is part of the GNU C
54 Library, but also included in many other GNU distributions. Compiling
55 and linking in this code is a waste when using the GNU C library
56 (especially if it is a shared library). Rather than having every GNU
57 program understand `configure --with-gnu-libc' and omit the object files,
58 it is simpler to just do this in the source for each such file. */
59
60 #define GETOPT_INTERFACE_VERSION 2
61 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
62 #include <gnu-versions.h>
63 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
64 #define ELIDE_CODE
65 #endif
66 #endif
67
68 #if 1
69 /*[JEC] was:#ifndef ELIDE_CODE*/
70
71
72 /* This needs to come after some library #include
73 to get __GNU_LIBRARY__ defined. */
74 #ifdef __GNU_LIBRARY__
75 #include <stdlib.h>
76 #endif
77
78 #ifndef NULL
79 #define NULL 0
80 #endif
81
82 int
share__getopt_long(argc,argv,options,long_options,opt_index)83 share__getopt_long (argc, argv, options, long_options, opt_index)
84 int argc;
85 char *const *argv;
86 const char *options;
87 const struct share__option *long_options;
88 int *opt_index;
89 {
90 return share___getopt_internal (argc, argv, options, long_options, opt_index, 0);
91 }
92
93 /* Like share__getopt_long, but '-' as well as '--' can indicate a long option.
94 If an option that starts with '-' (not '--') doesn't match a long option,
95 but does match a short option, it is parsed as a short option
96 instead. */
97
98 int
share__getopt_long_only(argc,argv,options,long_options,opt_index)99 share__getopt_long_only (argc, argv, options, long_options, opt_index)
100 int argc;
101 char *const *argv;
102 const char *options;
103 const struct share__option *long_options;
104 int *opt_index;
105 {
106 return share___getopt_internal (argc, argv, options, long_options, opt_index, 1);
107 }
108
109
110 #endif /* Not ELIDE_CODE. */
111
112 #ifdef TEST
113
114 #include <stdio.h>
115
116 int
main(argc,argv)117 main (argc, argv)
118 int argc;
119 char **argv;
120 {
121 int c;
122 int digit_optind = 0;
123
124 while (1)
125 {
126 int this_option_optind = share__optind ? share__optind : 1;
127 int option_index = 0;
128 static struct share__option long_options[] =
129 {
130 {"add", 1, 0, 0},
131 {"append", 0, 0, 0},
132 {"delete", 1, 0, 0},
133 {"verbose", 0, 0, 0},
134 {"create", 0, 0, 0},
135 {"file", 1, 0, 0},
136 {0, 0, 0, 0}
137 };
138
139 c = share__getopt_long (argc, argv, "abc:d:0123456789",
140 long_options, &option_index);
141 if (c == -1)
142 break;
143
144 switch (c)
145 {
146 case 0:
147 printf ("option %s", long_options[option_index].name);
148 if (share__optarg)
149 printf (" with arg %s", share__optarg);
150 printf ("\n");
151 break;
152
153 case '0':
154 case '1':
155 case '2':
156 case '3':
157 case '4':
158 case '5':
159 case '6':
160 case '7':
161 case '8':
162 case '9':
163 if (digit_optind != 0 && digit_optind != this_option_optind)
164 printf ("digits occur in two different argv-elements.\n");
165 digit_optind = this_option_optind;
166 printf ("option %c\n", c);
167 break;
168
169 case 'a':
170 printf ("option a\n");
171 break;
172
173 case 'b':
174 printf ("option b\n");
175 break;
176
177 case 'c':
178 printf ("option c with value `%s'\n", share__optarg);
179 break;
180
181 case 'd':
182 printf ("option d with value `%s'\n", share__optarg);
183 break;
184
185 case '?':
186 break;
187
188 default:
189 printf ("?? getopt returned character code 0%o ??\n", c);
190 }
191 }
192
193 if (share__optind < argc)
194 {
195 printf ("non-option ARGV-elements: ");
196 while (share__optind < argc)
197 printf ("%s ", argv[share__optind++]);
198 printf ("\n");
199 }
200
201 exit (0);
202 }
203
204 #endif /* TEST */
205