1 #include "config.h"
2
3 #if HAVE_GETSUBOPT
4
5 int dummy;
6
7 #else
8
9 /* Id: compat_getsubopt.c,v 1.5 2014/08/17 20:53:50 schwarze Exp */
10 /* $OpenBSD: getsubopt.c,v 1.4 2005/08/08 08:05:36 espie Exp $ */
11
12 /*-
13 * Copyright (c) 1990, 1993
14 * The Regents of the University of California. All rights reserved.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
18 * are met:
19 * 1. Redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution.
24 * 3. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 */
40
41 #include <unistd.h>
42 #include <stdlib.h>
43 #include <string.h>
44
45 int
getsubopt(char ** optionp,char * const * tokens,char ** valuep)46 getsubopt(char **optionp, char * const *tokens, char **valuep)
47 {
48 int cnt;
49 char *suboptarg;
50 char *p;
51
52 suboptarg = *valuep = NULL;
53
54 if (!optionp || !*optionp)
55 return(-1);
56
57 /* skip leading white-space, commas */
58 for (p = *optionp; *p && (*p == ',' || *p == ' ' || *p == '\t'); ++p);
59
60 if (!*p) {
61 *optionp = p;
62 return(-1);
63 }
64
65 /* save the start of the token, and skip the rest of the token. */
66 for (suboptarg = p;
67 *++p && *p != ',' && *p != '=' && *p != ' ' && *p != '\t';);
68
69 if (*p) {
70 /*
71 * If there's an equals sign, set the value pointer, and
72 * skip over the value part of the token. Terminate the
73 * token.
74 */
75 if (*p == '=') {
76 *p = '\0';
77 for (*valuep = ++p;
78 *p && *p != ',' && *p != ' ' && *p != '\t'; ++p);
79 if (*p)
80 *p++ = '\0';
81 } else
82 *p++ = '\0';
83 /* Skip any whitespace or commas after this token. */
84 for (; *p && (*p == ',' || *p == ' ' || *p == '\t'); ++p);
85 }
86
87 /* set optionp for next round. */
88 *optionp = p;
89
90 for (cnt = 0; *tokens; ++tokens, ++cnt)
91 if (!strcmp(suboptarg, *tokens))
92 return(cnt);
93 return(-1);
94 }
95
96 #endif
97