Annotation of embedaddon/quagga/lib/getopt1.c, revision 1.1.1.1
1.1 misho 1: /* getopt_long and getopt_long_only entry points for GNU getopt.
2: Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
3: Free Software Foundation, Inc.
4:
5: NOTE: The canonical source of this file is maintained with the GNU C Library.
6: Bugs can be reported to bug-glibc@gnu.org.
7:
8: This program is free software; you can redistribute it and/or modify it
9: under the terms of the GNU General Public License as published by the
10: Free Software Foundation; either version 2, or (at your option) any
11: 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
19: along with this program; if not, write to the Free Software
20: Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21: USA. */
22:
23: #ifdef HAVE_CONFIG_H
24: #include <config.h>
25: #endif
26:
27: #include <zebra.h>
28: #include "getopt.h"
29:
30: #if !defined __STDC__ || !__STDC__
31: /* This is a separate conditional since some stdc systems
32: reject `defined (const)'. */
33: #ifndef const
34: #define const
35: #endif
36: #endif
37:
38: #include <stdio.h>
39:
40: /* Comment out all this code if we are using the GNU C Library, and are not
41: actually compiling the library itself. This code is part of the GNU C
42: Library, but also included in many other GNU distributions. Compiling
43: and linking in this code is a waste when using the GNU C library
44: (especially if it is a shared library). Rather than having every GNU
45: program understand `configure --with-gnu-libc' and omit the object files,
46: it is simpler to just do this in the source for each such file. */
47:
48: #define GETOPT_INTERFACE_VERSION 2
49: #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
50: #include <gnu-versions.h>
51: #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
52: #define ELIDE_CODE
53: #endif
54: #endif
55:
56: #ifndef ELIDE_CODE
57:
58:
59: /* This needs to come after some library #include
60: to get __GNU_LIBRARY__ defined. */
61: #ifdef __GNU_LIBRARY__
62: #include <stdlib.h>
63: #endif
64:
65: #ifndef NULL
66: #define NULL 0
67: #endif
68:
69: int
70: getopt_long (argc, argv, options, long_options, opt_index)
71: int argc;
72: char *const *argv;
73: const char *options;
74: const struct option *long_options;
75: int *opt_index;
76: {
77: return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
78: }
79:
80: /* Like getopt_long, but '-' as well as '--' can indicate a long option.
81: If an option that starts with '-' (not '--') doesn't match a long option,
82: but does match a short option, it is parsed as a short option
83: instead. */
84:
85: int
86: getopt_long_only (argc, argv, options, long_options, opt_index)
87: int argc;
88: char *const *argv;
89: const char *options;
90: const struct option *long_options;
91: int *opt_index;
92: {
93: return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
94: }
95:
96:
97: #endif /* Not ELIDE_CODE. */
98:
99: #ifdef TEST
100:
101: #include <stdio.h>
102:
103: int
104: main (argc, argv)
105: int argc;
106: 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 */
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