1 /*- 2 * Copyright (c) 1994 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 34 #if 0 35 #ifndef lint 36 static char sccsid[] = "@(#)getmntopts.c 8.3 (Berkeley) 3/29/95"; 37 #endif /* not lint */ 38 #endif 39 #include <sys/cdefs.h> 40 __FBSDID("$FreeBSD$"); 41 42 #include <sys/param.h> 43 #include <sys/stat.h> 44 45 #include <err.h> 46 #include <errno.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <sysexits.h> 50 51 #include "mntopts.h" 52 53 int getmnt_silent = 0; 54 55 void 56 getmntopts(options, m0, flagp, altflagp) 57 const char *options; 58 const struct mntopt *m0; 59 int *flagp; 60 int *altflagp; 61 { 62 const struct mntopt *m; 63 int negative, len; 64 char *opt, *optbuf, *p; 65 int *thisflagp; 66 67 /* Copy option string, since it is about to be torn asunder... */ 68 if ((optbuf = strdup(options)) == NULL) 69 err(1, NULL); 70 71 for (opt = optbuf; (opt = strtok(opt, ",")) != NULL; opt = NULL) { 72 /* Check for "no" prefix. */ 73 if (opt[0] == 'n' && opt[1] == 'o') { 74 negative = 1; 75 opt += 2; 76 } else 77 negative = 0; 78 79 /* 80 * for options with assignments in them (ie. quotas) 81 * ignore the assignment as it's handled elsewhere 82 */ 83 p = strchr(opt, '='); 84 if (p) 85 *++p = '\0'; 86 87 /* Scan option table. */ 88 for (m = m0; m->m_option != NULL; ++m) { 89 len = strlen(m->m_option); 90 if (strncasecmp(opt, m->m_option, len) == 0) 91 if ( m->m_option[len] == '\0' 92 || m->m_option[len] == '=' 93 ) 94 break; 95 } 96 97 /* Save flag, or fail if option is not recognized. */ 98 if (m->m_option) { 99 thisflagp = m->m_altloc ? altflagp : flagp; 100 if (negative == m->m_inverse) 101 *thisflagp |= m->m_flag; 102 else 103 *thisflagp &= ~m->m_flag; 104 } else if (!getmnt_silent) { 105 errx(1, "-o %s: option not supported", opt); 106 } 107 } 108 109 free(optbuf); 110 } 111 112 void 113 rmslashes(rrpin, rrpout) 114 char *rrpin; 115 char *rrpout; 116 { 117 char *rrpoutstart; 118 119 *rrpout = *rrpin; 120 for (rrpoutstart = rrpout; *rrpin != '\0'; *rrpout++ = *rrpin++) { 121 122 /* skip all double slashes */ 123 while (*rrpin == '/' && *(rrpin + 1) == '/') 124 rrpin++; 125 } 126 127 /* remove trailing slash if necessary */ 128 if (rrpout - rrpoutstart > 1 && *(rrpout - 1) == '/') 129 *(rrpout - 1) = '\0'; 130 else 131 *rrpout = '\0'; 132 } 133 134 void 135 checkpath(path, resolved) 136 const char *path; 137 char *resolved; 138 { 139 struct stat sb; 140 141 if (realpath(path, resolved) != NULL && stat(resolved, &sb) == 0) { 142 if (!S_ISDIR(sb.st_mode)) 143 errx(EX_USAGE, "%s: not a directory", resolved); 144 } else 145 errx(EX_USAGE, "%s: %s", resolved, strerror(errno)); 146 } 147