freebsd-skq/sbin/mount/vfslist.c

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/*-
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* Copyright (c) 1995
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
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static char sccsid[] = "@(#)vfslist.c 8.1 (Berkeley) 5/8/95";
#endif
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#endif /* not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
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#include <err.h>
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#include <stdlib.h>
#include <string.h>
#include "extern.h"
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static int skipvfs;
int
checkvfsname(const char *vfsname, const char **vfslist)
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{
if (vfslist == NULL)
return (0);
while (*vfslist != NULL) {
if (strcmp(vfsname, *vfslist) == 0)
return (skipvfs);
++vfslist;
}
return (!skipvfs);
}
const char **
makevfslist(char *fslist)
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{
const char **av;
int i;
char *nextcp;
if (fslist == NULL)
return (NULL);
if (fslist[0] == 'n' && fslist[1] == 'o') {
fslist += 2;
skipvfs = 1;
}
for (i = 0, nextcp = fslist; *nextcp; nextcp++)
if (*nextcp == ',')
i++;
if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
warnx("malloc failed");
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return (NULL);
}
nextcp = fslist;
i = 0;
av[i++] = nextcp;
while ((nextcp = strchr(nextcp, ',')) != NULL) {
*nextcp++ = '\0';
av[i++] = nextcp;
}
av[i++] = NULL;
return (av);
}