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. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35#if 0
36static char sccsid[] = "@(#)vfslist.c	8.1 (Berkeley) 5/8/95";
37#endif
38static const char rcsid[] =
39  "$FreeBSD: src/sbin/mount/vfslist.c,v 1.4 1999/08/28 00:13:27 peter Exp $";
40#endif /* not lint */
41
42#include <err.h>
43#include <stdlib.h>
44#include <string.h>
45
46#ifndef __APPLE__
47#include "extern.h"
48#endif
49
50static int	  skipvfs;
51
52int checkvfsname(const char *, const char **);
53const char **makevfslist(const char *);
54
55int
56checkvfsname(vfsname, vfslist)
57	const char *vfsname;
58	const char **vfslist;
59{
60
61	if (vfslist == NULL)
62		return (0);
63	while (*vfslist != NULL) {
64		if (strcmp(vfsname, *vfslist) == 0)
65			return (skipvfs);
66		++vfslist;
67	}
68	return (!skipvfs);
69}
70
71const char **
72makevfslist(fslist)
73	const char *fslist;
74{
75	const char **av;
76	int i;
77	const char *cnextcp;
78	char *nextcp;
79
80	if (fslist == NULL)
81		return (NULL);
82	if (fslist[0] == 'n' && fslist[1] == 'o') {
83		fslist += 2;
84		skipvfs = 1;
85	}
86	for (i = 0, cnextcp = fslist; *cnextcp; cnextcp++)
87		if (*cnextcp == ',')
88			i++;
89	if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
90		warnx("malloc failed");
91		return (NULL);
92	}
93	nextcp = strdup(fslist);
94	i = 0;
95	av[i++] = nextcp;
96	while ((nextcp = strchr(nextcp, ',')) != NULL) {
97		*nextcp++ = '\0';
98		av[i++] = nextcp;
99	}
100	av[i++] = NULL;
101	return (av);
102}
103