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 * 4. 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
30 #ifndef lint
31 #if 0
32 static char sccsid[] = "@(#)vfslist.c 8.1 (Berkeley) 5/8/95";
33 #endif
34 #endif /* not lint */
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD: stable/10/sbin/mount/vfslist.c 201227 2009-12-29 22:53:27Z ed $");
37
38 #include <err.h>
39 #include <stdlib.h>
40 #include <string.h>
41
42 #include "extern.h"
43
44 static int skipvfs;
45
46 int
checkvfsname(const char * vfsname,const char ** vfslist)47 checkvfsname(const char *vfsname, const char **vfslist)
48 {
49
50 if (vfslist == NULL)
51 return (0);
52 while (*vfslist != NULL) {
53 if (strcmp(vfsname, *vfslist) == 0)
54 return (skipvfs);
55 ++vfslist;
56 }
57 return (!skipvfs);
58 }
59
60 const char **
makevfslist(char * fslist)61 makevfslist(char *fslist)
62 {
63 const char **av;
64 int i;
65 char *nextcp;
66
67 if (fslist == NULL)
68 return (NULL);
69 if (fslist[0] == 'n' && fslist[1] == 'o') {
70 fslist += 2;
71 skipvfs = 1;
72 }
73 for (i = 0, nextcp = fslist; *nextcp; nextcp++)
74 if (*nextcp == ',')
75 i++;
76 if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
77 warnx("malloc failed");
78 return (NULL);
79 }
80 nextcp = fslist;
81 i = 0;
82 av[i++] = nextcp;
83 while ((nextcp = strchr(nextcp, ',')) != NULL) {
84 *nextcp++ = '\0';
85 av[i++] = nextcp;
86 }
87 av[i++] = NULL;
88 return (av);
89 }
90