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1.1 root 1: /* getopt_long and getopt_long_only entry points for GNU getopt.
2: Copyright (C) 1987, 88, 89, 90, 91, 92, 1993
3: Free Software Foundation, Inc.
4:
5: This program is free software; you can redistribute it and/or modify it
6: under the terms of the GNU General Public License as published by the
7: Free Software Foundation; either version 2, or (at your option) any
8: later version.
9:
10: This program 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
13: GNU General Public License for more details.
14:
15: You should have received a copy of the GNU General Public License
16: along with this program; if not, write to the Free Software
17: Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
18:
19: #ifdef HAVE_CONFIG_H
20: /* We use <config.h> instead of "config.h" so that a compilation
21: using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
22: (which it would do because getopt1.c was found in $srcdir). */
23: #include <config.h>
24: #endif
25:
26: #include "getopt.h"
27:
28: #ifndef __STDC__
29: /* This is a separate conditional since some stdc systems
30: reject `defined (const)'. */
31: #ifndef const
32: #define const
33: #endif
34: #endif
35:
36: #include <stdio.h>
37:
38: /* Comment out all this code if we are using the GNU C Library, and are not
39: actually compiling the library itself. This code is part of the GNU C
40: Library, but also included in many other GNU distributions. Compiling
41: and linking in this code is a waste when using the GNU C library
42: (especially if it is a shared library). Rather than having every GNU
43: program understand `configure --with-gnu-libc' and omit the object files,
44: it is simpler to just do this in the source for each such file. */
45:
46: #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
47:
48:
49: /* This needs to come after some library #include
50: to get __GNU_LIBRARY__ defined. */
51: #ifdef __GNU_LIBRARY__
52: #include <stdlib.h>
53: #else
54: char *getenv ();
55: #endif
56:
57: #ifndef NULL
58: #define NULL 0
59: #endif
60:
61: int
62: getopt_long (argc, argv, options, long_options, opt_index)
63: int argc;
64: char *const *argv;
65: const char *options;
66: const struct option *long_options;
67: int *opt_index;
68: {
69: return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
70: }
71:
72: /* Like getopt_long, but '-' as well as '--' can indicate a long option.
73: If an option that starts with '-' (not '--') doesn't match a long option,
74: but does match a short option, it is parsed as a short option
75: instead. */
76:
77: int
78: getopt_long_only (argc, argv, options, long_options, opt_index)
79: 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:
89: #endif /* _LIBC or not __GNU_LIBRARY__. */
90:
91: #ifdef TEST
92:
93: #include <stdio.h>
94:
95: int
96: main (argc, argv)
97: int argc;
98: char **argv;
99: {
100: int c;
101: int digit_optind = 0;
102:
103: while (1)
104: {
105: int this_option_optind = optind ? optind : 1;
106: int option_index = 0;
107: static struct option long_options[] =
108: {
109: {"add", 1, 0, 0},
110: {"append", 0, 0, 0},
111: {"delete", 1, 0, 0},
112: {"verbose", 0, 0, 0},
113: {"create", 0, 0, 0},
114: {"file", 1, 0, 0},
115: {0, 0, 0, 0}
116: };
117:
118: c = getopt_long (argc, argv, "abc:d:0123456789",
119: long_options, &option_index);
120: if (c == EOF)
121: break;
122:
123: switch (c)
124: {
125: case 0:
126: printf ("option %s", long_options[option_index].name);
127: if (optarg)
128: printf (" with arg %s", optarg);
129: printf ("\n");
130: break;
131:
132: case '0':
133: case '1':
134: case '2':
135: case '3':
136: case '4':
137: case '5':
138: case '6':
139: case '7':
140: case '8':
141: case '9':
142: if (digit_optind != 0 && digit_optind != this_option_optind)
143: printf ("digits occur in two different argv-elements.\n");
144: digit_optind = this_option_optind;
145: printf ("option %c\n", c);
146: break;
147:
148: case 'a':
149: printf ("option a\n");
150: break;
151:
152: case 'b':
153: printf ("option b\n");
154: break;
155:
156: case 'c':
157: printf ("option c with value `%s'\n", optarg);
158: break;
159:
160: case 'd':
161: printf ("option d with value `%s'\n", optarg);
162: break;
163:
164: case '?':
165: break;
166:
167: default:
168: printf ("?? getopt returned character code 0%o ??\n", c);
169: }
170: }
171:
172: if (optind < argc)
173: {
174: printf ("non-option ARGV-elements: ");
175: while (optind < argc)
176: printf ("%s ", argv[optind++]);
177: printf ("\n");
178: }
179:
180: exit (0);
181: }
182:
183: #endif /* TEST */
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