1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <sys/salib.h>
28
29 #define EOF (-1)
30
31 int opterr = 1, optind = 1, optopt = 0;
32 char *optarg = NULL;
33 int _sp = 1;
34
35 extern void warn(const char *, ...);
36
37 void
getopt_reset(void)38 getopt_reset(void)
39 {
40 opterr = 1;
41 optind = 1;
42 optopt = 0;
43 optarg = NULL;
44 _sp = 1;
45 }
46
47 int
getopt(int argc,char * const * argv,const char * opts)48 getopt(int argc, char *const *argv, const char *opts)
49 {
50 char c;
51 char *cp;
52
53 if (_sp == 1) {
54 if (optind >= argc || argv[optind][0] != '-' ||
55 argv[optind] == NULL || argv[optind][1] == '\0')
56 return (EOF);
57 else if (strcmp(argv[optind], "--") == 0) {
58 optind++;
59 return (EOF);
60 }
61 }
62 optopt = c = (unsigned char)argv[optind][_sp];
63 if (c == ':' || (cp = strchr(opts, c)) == NULL) {
64 if (opts[0] != ':')
65 warn("%s: illegal option -- %c\n", argv[0], c);
66 if (argv[optind][++_sp] == '\0') {
67 optind++;
68 _sp = 1;
69 }
70 return ('?');
71 }
72
73 if (*(cp + 1) == ':') {
74 if (argv[optind][_sp+1] != '\0')
75 optarg = &argv[optind++][_sp+1];
76 else if (++optind >= argc) {
77 if (opts[0] != ':') {
78 warn("%s: option requires an argument"
79 " -- %c\n", argv[0], c);
80 }
81 _sp = 1;
82 optarg = NULL;
83 return (opts[0] == ':' ? ':' : '?');
84 } else
85 optarg = argv[optind++];
86 _sp = 1;
87 } else {
88 if (argv[optind][++_sp] == '\0') {
89 _sp = 1;
90 optind++;
91 }
92 optarg = NULL;
93 }
94 return (c);
95 }
96