1/*	$NetBSD: vfslist.c,v 1.6 2005/06/26 21:43:33 christos Exp $	*/
2
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 <sys/cdefs.h>
33#ifndef lint
34#if 0
35static char sccsid[] = "@(#)vfslist.c	8.1 (Berkeley) 5/8/95";
36#else
37__RCSID("$NetBSD: vfslist.c,v 1.6 2005/06/26 21:43:33 christos Exp $");
38#endif
39#endif /* not lint */
40
41#include <err.h>
42#include <stdlib.h>
43#include <string.h>
44#include <unistd.h>
45
46#include "mountprog.h"
47
48static int	  skipvfs;
49
50int
51checkvfsname(const char *vfsname, const char **vfslist)
52{
53
54	if (vfslist == NULL)
55		return (0);
56	while (*vfslist != NULL) {
57		if (strcmp(vfsname, *vfslist) == 0)
58			return (skipvfs);
59		++vfslist;
60	}
61	return (!skipvfs);
62}
63
64const char **
65makevfslist(const char *fslist)
66{
67	const char **av;
68	size_t i;
69	char *nextcp, *fsl;
70
71	if (fslist == NULL)
72		return NULL;
73
74	if (fslist[0] == 'n' && fslist[1] == 'o') {
75		fslist += 2;
76		skipvfs = 1;
77	}
78	if ((fsl = strdup(fslist)) == NULL) {
79		warn("strdup");
80		return NULL;
81	}
82	for (i = 0, nextcp = fsl; *nextcp; nextcp++)
83		if (*nextcp == ',')
84			i++;
85	if ((av = malloc((i + 2) * sizeof(char *))) == NULL) {
86		warn("malloc");
87		free(fsl);
88		return NULL;
89	}
90	nextcp = fsl;
91	i = 0;
92	av[i++] = nextcp;
93	while ((nextcp = strchr(nextcp, ',')) != NULL) {
94		*nextcp++ = '\0';
95		av[i++] = nextcp;
96	}
97	av[i++] = NULL;
98	return av;
99}
100