Home | History | Annotate | Line # | Download | only in mount
vfslist.c revision 1.4 
      1 /*	$NetBSD: vfslist.c,v 1.4 2003/08/07 10:04:26 agc 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
     35 static char sccsid[] = "@(#)vfslist.c	8.1 (Berkeley) 5/8/95";
     36 #else
     37 __RCSID("$NetBSD: vfslist.c,v 1.4 2003/08/07 10:04:26 agc 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 "vfslist.h"
     47 
     48 static int	  skipvfs;
     49 
     50 int
     51 checkvfsname(vfsname, vfslist)
     52 	const char *vfsname;
     53 	const char **vfslist;
     54 {
     55 
     56 	if (vfslist == NULL)
     57 		return (0);
     58 	while (*vfslist != NULL) {
     59 		if (strcmp(vfsname, *vfslist) == 0)
     60 			return (skipvfs);
     61 		++vfslist;
     62 	}
     63 	return (!skipvfs);
     64 }
     65 
     66 const char **
     67 makevfslist(fslist)
     68 	char *fslist;
     69 {
     70 	const char **av;
     71 	int i;
     72 	char *nextcp;
     73 
     74 	if (fslist == NULL)
     75 		return (NULL);
     76 	if (fslist[0] == 'n' && fslist[1] == 'o') {
     77 		fslist += 2;
     78 		skipvfs = 1;
     79 	}
     80 	for (i = 0, nextcp = fslist; *nextcp; nextcp++)
     81 		if (*nextcp == ',')
     82 			i++;
     83 	if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
     84 		warn("malloc");
     85 		return (NULL);
     86 	}
     87 	nextcp = fslist;
     88 	i = 0;
     89 	av[i++] = nextcp;
     90 	while ((nextcp = strchr(nextcp, ',')) != NULL) {
     91 		*nextcp++ = '\0';
     92 		av[i++] = nextcp;
     93 	}
     94 	av[i++] = NULL;
     95 	return (av);
     96 }
     97