1/*
2 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23/*-
24 * Copyright (c) 1995
25 *	The Regents of the University of California.  All rights reserved.
26 *
27 * Redistribution and use in source and binary forms, with or without
28 * modification, are permitted provided that the following conditions
29 * are met:
30 * 1. Redistributions of source code must retain the above copyright
31 *    notice, this list of conditions and the following disclaimer.
32 * 2. Redistributions in binary form must reproduce the above copyright
33 *    notice, this list of conditions and the following disclaimer in the
34 *    documentation and/or other materials provided with the distribution.
35 * 3. All advertising materials mentioning features or use of this software
36 *    must display the following acknowledgement:
37 *	This product includes software developed by the University of
38 *	California, Berkeley and its contributors.
39 * 4. Neither the name of the University nor the names of its contributors
40 *    may be used to endorse or promote products derived from this software
41 *    without specific prior written permission.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * SUCH DAMAGE.
54 */
55
56
57#include <stdlib.h>
58#include <string.h>
59#include <unistd.h>
60#include <err.h>
61
62int		  checkvfsname __P((const char *, const char **));
63const char	**makevfslist __P((char *));
64static int	  skipvfs;
65
66int
67checkvfsname(vfsname, vfslist)
68	const char *vfsname;
69	const char **vfslist;
70{
71
72	if (vfslist == NULL)
73		return (0);
74	while (*vfslist != NULL) {
75		if (strcmp(vfsname, *vfslist) == 0)
76			return (skipvfs);
77		++vfslist;
78	}
79	return (!skipvfs);
80}
81
82const char **
83makevfslist(fslist)
84	char *fslist;
85{
86	const char **av;
87	int i;
88	char *nextcp;
89
90	if (fslist == NULL)
91		return (NULL);
92	if (fslist[0] == 'n' && fslist[1] == 'o') {
93		fslist += 2;
94		skipvfs = 1;
95	}
96	for (i = 0, nextcp = fslist; *nextcp; nextcp++)
97		if (*nextcp == ',')
98			i++;
99	if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
100		warn(NULL);
101		return (NULL);
102	}
103	nextcp = fslist;
104	i = 0;
105	av[i++] = nextcp;
106	while ((nextcp = strchr(nextcp, ',')) != NULL) {
107		*nextcp++ = '\0';
108		av[i++] = nextcp;
109	}
110	av[i++] = NULL;
111	return (av);
112}
113