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#include <err.h>
33#include <stdlib.h>
34#include <string.h>
35
36#include "extern.h"
37
38static int	  skipvfs;
39
40int
41checkvfsname(const char *vfsname, const char **vfslist)
42{
43
44	if (vfslist == NULL)
45		return (0);
46	while (*vfslist != NULL) {
47		if (strcmp(vfsname, *vfslist) == 0)
48			return (skipvfs);
49		++vfslist;
50	}
51	return (!skipvfs);
52}
53
54const char **
55makevfslist(char *fslist)
56{
57	const char **av;
58	int i;
59	char *nextcp;
60
61	if (fslist == NULL)
62		return (NULL);
63	skipvfs = 0;
64	if (fslist[0] == 'n' && fslist[1] == 'o') {
65		fslist += 2;
66		skipvfs = 1;
67	}
68	for (i = 0, nextcp = fslist; *nextcp; nextcp++)
69		if (*nextcp == ',')
70			i++;
71	if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
72		warnx("malloc failed");
73		return (NULL);
74	}
75	nextcp = fslist;
76	i = 0;
77	av[i++] = nextcp;
78	while ((nextcp = strchr(nextcp, ',')) != NULL) {
79		*nextcp++ = '\0';
80		av[i++] = nextcp;
81	}
82	av[i++] = NULL;
83	return (av);
84}
85