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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)vfslist.c 8.1 (Berkeley) 5/8/95 34 * $FreeBSD: src/sbin/mount/vfslist.c,v 1.4 1999/08/28 00:13:27 peter Exp $ 35 * $DragonFly: src/sbin/mount/vfslist.c,v 1.3 2003/09/28 14:39:18 hmp Exp $ 36 */ 37 38 #include <err.h> 39 #include <stdlib.h> 40 #include <string.h> 41 42 #include "extern.h" 43 44 static int skipvfs; 45 46 int 47 checkvfsname(const char *vfsname, const char **vfslist) 48 { 49 50 if (vfslist == NULL) 51 return (0); 52 while (*vfslist != NULL) { 53 if (strcmp(vfsname, *vfslist) == 0) 54 return (skipvfs); 55 ++vfslist; 56 } 57 return (!skipvfs); 58 } 59 60 const char ** 61 makevfslist(char *fslist) 62 { 63 const char **av; 64 int i; 65 char *nextcp; 66 67 if (fslist == NULL) 68 return (NULL); 69 if (fslist[0] == 'n' && fslist[1] == 'o') { 70 fslist += 2; 71 skipvfs = 1; 72 } 73 for (i = 0, nextcp = fslist; *nextcp; nextcp++) 74 if (*nextcp == ',') 75 i++; 76 if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) { 77 warnx("malloc failed"); 78 return (NULL); 79 } 80 nextcp = fslist; 81 i = 0; 82 av[i++] = nextcp; 83 while ((nextcp = strchr(nextcp, ',')) != NULL) { 84 *nextcp++ = '\0'; 85 av[i++] = nextcp; 86 } 87 av[i++] = NULL; 88 return (av); 89 } 90