1 /* $NetBSD: vfslist.c,v 1.7 2008/08/05 20:57:45 pooka 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 1.7 2008/08/05 20:57:45 pooka 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 "mountprog.h" 47 48 static int skipvfs; 49 50 int 51 checkvfsname(const char *vfsname, const char **vfslist) 52 { 53 54 if (vfslist == NULL) 55 return (0); 56 while (*vfslist != NULL) { 57 if (strcmp(vfsname, *vfslist) == 0) 58 return (skipvfs); 59 ++vfslist; 60 } 61 return (!skipvfs); 62 } 63 64 const char ** 65 makevfslist(const char *fslist) 66 { 67 const char **av; 68 size_t i; 69 char *nextcp, *fsl; 70 71 if (fslist == NULL) 72 return NULL; 73 74 if (fslist[0] == 'n' && fslist[1] == 'o') { 75 fslist += 2; 76 skipvfs = 1; 77 } 78 if ((fsl = strdup(fslist)) == NULL) { 79 warn("strdup"); 80 return NULL; 81 } 82 for (i = 0, nextcp = fsl; *nextcp; nextcp++) 83 if (*nextcp == ',') 84 i++; 85 if ((av = malloc((i + 2) * sizeof(char *))) == NULL) { 86 warn("malloc"); 87 free(fsl); 88 return NULL; 89 } 90 nextcp = fsl; 91 i = 0; 92 av[i++] = nextcp; 93 while ((nextcp = strchr(nextcp, ',')) != NULL) { 94 *nextcp++ = '\0'; 95 av[i++] = nextcp; 96 } 97 av[i++] = NULL; 98 return av; 99 } 100