1 /*- 2 * Copyright (c) 1995 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)vfslist.c 8.1 (Berkeley) 5/8/95 30 * $FreeBSD: src/sbin/mount/vfslist.c,v 1.4 1999/08/28 00:13:27 peter Exp $ 31 * $DragonFly: src/sbin/mount/vfslist.c,v 1.3 2003/09/28 14:39:18 hmp Exp $ 32 */ 33 34 #include <err.h> 35 #include <stdlib.h> 36 #include <string.h> 37 38 #include "extern.h" 39 40 static int skipvfs; 41 42 int 43 checkvfsname(const char *vfsname, const char **vfslist) 44 { 45 46 if (vfslist == NULL) 47 return (0); 48 while (*vfslist != NULL) { 49 if (strcmp(vfsname, *vfslist) == 0) 50 return (skipvfs); 51 ++vfslist; 52 } 53 return (!skipvfs); 54 } 55 56 const char ** 57 makevfslist(char *fslist) 58 { 59 const char **av; 60 int i; 61 char *nextcp; 62 63 if (fslist == NULL) 64 return (NULL); 65 if (fslist[0] == 'n' && fslist[1] == 'o') { 66 fslist += 2; 67 skipvfs = 1; 68 } 69 for (i = 0, nextcp = fslist; *nextcp; nextcp++) 70 if (*nextcp == ',') 71 i++; 72 if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) { 73 warnx("malloc failed"); 74 return (NULL); 75 } 76 nextcp = fslist; 77 i = 0; 78 av[i++] = nextcp; 79 while ((nextcp = strchr(nextcp, ',')) != NULL) { 80 *nextcp++ = '\0'; 81 av[i++] = nextcp; 82 } 83 av[i++] = NULL; 84 return (av); 85 } 86