1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
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#ifndef lint
33#if 0
34static char sccsid[] = "@(#)vfslist.c	8.1 (Berkeley) 5/8/95";
35#endif
36#endif /* not lint */
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD$");
39
40#include <err.h>
41#include <stdlib.h>
42#include <string.h>
43
44#include "extern.h"
45
46static int	  skipvfs;
47
48int
49checkvfsname(const char *vfsname, const char **vfslist)
50{
51
52	if (vfslist == NULL)
53		return (0);
54	while (*vfslist != NULL) {
55		if (strcmp(vfsname, *vfslist) == 0)
56			return (skipvfs);
57		++vfslist;
58	}
59	return (!skipvfs);
60}
61
62const char **
63makevfslist(char *fslist)
64{
65	const char **av;
66	int i;
67	char *nextcp;
68
69	if (fslist == NULL)
70		return (NULL);
71	if (fslist[0] == 'n' && fslist[1] == 'o') {
72		fslist += 2;
73		skipvfs = 1;
74	}
75	for (i = 0, nextcp = fslist; *nextcp; nextcp++)
76		if (*nextcp == ',')
77			i++;
78	if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
79		warnx("malloc failed");
80		return (NULL);
81	}
82	nextcp = fslist;
83	i = 0;
84	av[i++] = nextcp;
85	while ((nextcp = strchr(nextcp, ',')) != NULL) {
86		*nextcp++ = '\0';
87		av[i++] = nextcp;
88	}
89	av[i++] = NULL;
90	return (av);
91}
92