1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 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 <err.h> 33 #include <stdlib.h> 34 #include <string.h> 35 36 #include "extern.h" 37 38 static int skipvfs; 39 40 int 41 checkvfsname(const char *vfsname, const char **vfslist) 42 { 43 44 if (vfslist == NULL) 45 return (0); 46 while (*vfslist != NULL) { 47 if (strcmp(vfsname, *vfslist) == 0) 48 return (skipvfs); 49 ++vfslist; 50 } 51 return (!skipvfs); 52 } 53 54 const char ** 55 makevfslist(char *fslist) 56 { 57 const char **av; 58 int i; 59 char *nextcp; 60 61 if (fslist == NULL) 62 return (NULL); 63 skipvfs = 0; 64 if (fslist[0] == 'n' && fslist[1] == 'o') { 65 fslist += 2; 66 skipvfs = 1; 67 } 68 for (i = 0, nextcp = fslist; *nextcp; nextcp++) 69 if (*nextcp == ',') 70 i++; 71 if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) { 72 warnx("malloc failed"); 73 return (NULL); 74 } 75 nextcp = fslist; 76 i = 0; 77 av[i++] = nextcp; 78 while ((nextcp = strchr(nextcp, ',')) != NULL) { 79 *nextcp++ = '\0'; 80 av[i++] = nextcp; 81 } 82 av[i++] = NULL; 83 return (av); 84 } 85