1 /*-
2 * Copyright (c) 1995
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)vfslist.c 8.1 (Berkeley) 5/8/95
30 * $FreeBSD: src/sbin/mount/vfslist.c,v 1.4 1999/08/28 00:13:27 peter Exp $
31 * $DragonFly: src/sbin/mount/vfslist.c,v 1.3 2003/09/28 14:39:18 hmp Exp $
32 */
33
34 #include <err.h>
35 #include <stdlib.h>
36 #include <string.h>
37
38 #include "extern.h"
39
40 static int skipvfs;
41
42 int
checkvfsname(const char * vfsname,const char ** vfslist)43 checkvfsname(const char *vfsname, const char **vfslist)
44 {
45
46 if (vfslist == NULL)
47 return (0);
48 while (*vfslist != NULL) {
49 if (strcmp(vfsname, *vfslist) == 0)
50 return (skipvfs);
51 ++vfslist;
52 }
53 return (!skipvfs);
54 }
55
56 const char **
makevfslist(char * fslist)57 makevfslist(char *fslist)
58 {
59 const char **av;
60 int i;
61 char *nextcp;
62
63 if (fslist == NULL)
64 return (NULL);
65 if (fslist[0] == 'n' && fslist[1] == 'o') {
66 fslist += 2;
67 skipvfs = 1;
68 }
69 for (i = 0, nextcp = fslist; *nextcp; nextcp++)
70 if (*nextcp == ',')
71 i++;
72 if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
73 warnx("malloc failed");
74 return (NULL);
75 }
76 nextcp = fslist;
77 i = 0;
78 av[i++] = nextcp;
79 while ((nextcp = strchr(nextcp, ',')) != NULL) {
80 *nextcp++ = '\0';
81 av[i++] = nextcp;
82 }
83 av[i++] = NULL;
84 return (av);
85 }
86