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 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/salib.h>
30
31 #define EOF (-1)
32
33 int opterr = 1, optind = 1, optopt = 0;
34 char *optarg = NULL;
35 int _sp = 1;
36
37 extern void warn(const char *, ...);
38
39 void
getopt_reset(void)40 getopt_reset(void)
41 {
42 opterr = 1;
43 optind = 1;
44 optopt = 0;
45 optarg = NULL;
46 _sp = 1;
47 }
48
49 int
getopt(int argc,char * const * argv,const char * opts)50 getopt(int argc, char *const *argv, const char *opts)
51 {
52 char c;
53 char *cp;
54
55 if (_sp == 1) {
56 if (optind >= argc || argv[optind][0] != '-' ||
57 argv[optind] == NULL || argv[optind][1] == '\0')
58 return (EOF);
59 else if (strcmp(argv[optind], "--") == NULL) {
60 optind++;
61 return (EOF);
62 }
63 }
64 optopt = c = (unsigned char)argv[optind][_sp];
65 if (c == ':' || (cp = strchr(opts, c)) == NULL) {
66 if (opts[0] != ':')
67 warn("%s: illegal option -- %c\n", argv[0], c);
68 if (argv[optind][++_sp] == '\0') {
69 optind++;
70 _sp = 1;
71 }
72 return ('?');
73 }
74
75 if (*(cp + 1) == ':') {
76 if (argv[optind][_sp+1] != '\0')
77 optarg = &argv[optind++][_sp+1];
78 else if (++optind >= argc) {
79 if (opts[0] != ':') {
80 warn("%s: option requires an argument"
81 " -- %c\n", argv[0], c);
82 }
83 _sp = 1;
84 optarg = NULL;
85 return (opts[0] == ':' ? ':' : '?');
86 } else
87 optarg = argv[optind++];
88 _sp = 1;
89 } else {
90 if (argv[optind][++_sp] == '\0') {
91 _sp = 1;
92 optind++;
93 }
94 optarg = NULL;
95 }
96 return (c);
97 }
98