1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1995
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <err.h>
33 #include <stdlib.h>
34 #include <string.h>
35
36 #include "extern.h"
37
38 static int skipvfs;
39
40 int
checkvfsname(const char * vfsname,const char ** vfslist)41 checkvfsname(const char *vfsname, const char **vfslist)
42 {
43
44 if (vfslist == NULL)
45 return (0);
46 while (*vfslist != NULL) {
47 if (strcmp(vfsname, *vfslist) == 0)
48 return (skipvfs);
49 ++vfslist;
50 }
51 return (!skipvfs);
52 }
53
54 const char **
makevfslist(char * fslist)55 makevfslist(char *fslist)
56 {
57 const char **av;
58 int i;
59 char *nextcp;
60
61 if (fslist == NULL)
62 return (NULL);
63 skipvfs = 0;
64 if (fslist[0] == 'n' && fslist[1] == 'o') {
65 fslist += 2;
66 skipvfs = 1;
67 }
68 for (i = 0, nextcp = fslist; *nextcp; nextcp++)
69 if (*nextcp == ',')
70 i++;
71 if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
72 warnx("malloc failed");
73 return (NULL);
74 }
75 nextcp = fslist;
76 i = 0;
77 av[i++] = nextcp;
78 while ((nextcp = strchr(nextcp, ',')) != NULL) {
79 *nextcp++ = '\0';
80 av[i++] = nextcp;
81 }
82 av[i++] = NULL;
83 return (av);
84 }
85