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#include <sys/cdefs.h>
35#ifndef lint
36#if 0
37static char sccsid[] = "@(#)vfslist.c	8.1 (Berkeley) 5/8/95";
38#endif
39__used static const char rcsid[] =
40  "$FreeBSD: src/sbin/mount/vfslist.c,v 1.4 1999/08/28 00:13:27 peter Exp $";
41#endif /* not lint */
42
43#include <err.h>
44#include <stdlib.h>
45#include <string.h>
46
47#ifndef __APPLE__
48#include "extern.h"
49#endif
50
51static int	  skipvfs;
52
53int checkvfsname(const char *, const char **);
54const char **makevfslist(const char *);
55
56int
57checkvfsname(vfsname, vfslist)
58	const char *vfsname;
59	const char **vfslist;
60{
61
62	if (vfslist == NULL)
63		return (0);
64	while (*vfslist != NULL) {
65		if (strcmp(vfsname, *vfslist) == 0)
66			return (skipvfs);
67		++vfslist;
68	}
69	return (!skipvfs);
70}
71
72const char **
73makevfslist(fslist)
74	const char *fslist;
75{
76	const char **av;
77	int i;
78	const char *cnextcp;
79	char *nextcp;
80
81	if (fslist == NULL)
82		return (NULL);
83	if (fslist[0] == 'n' && fslist[1] == 'o') {
84		fslist += 2;
85		skipvfs = 1;
86	}
87	for (i = 0, cnextcp = fslist; *cnextcp; cnextcp++)
88		if (*cnextcp == ',')
89			i++;
90	if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
91		warnx("malloc failed");
92		return (NULL);
93	}
94	nextcp = strdup(fslist);
95	i = 0;
96	av[i++] = nextcp;
97	while ((nextcp = strchr(nextcp, ',')) != NULL) {
98		*nextcp++ = '\0';
99		av[i++] = nextcp;
100	}
101	av[i++] = NULL;
102	return (av);
103}
104