1/* 2 * Copyright (c) 1980, 1988, 1993 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 defined(LIBC_SCCS) && !defined(lint)
| 1/* 2 * Copyright (c) 1980, 1988, 1993 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 defined(LIBC_SCCS) && !defined(lint)
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35#if 0
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36static char sccsid[] = "@(#)fstab.c 8.1 (Berkeley) 6/4/93";
| 35static char sccsid[] = "@(#)fstab.c 8.1 (Berkeley) 6/4/93";
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37#else 38static char rcsid[] = 39 "$FreeBSD: head/lib/libc/gen/fstab.c 84768 2001-10-10 17:48:44Z bde $"; 40#endif
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41#endif /* LIBC_SCCS and not lint */
| 36#endif /* LIBC_SCCS and not lint */
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| 37#include <sys/cdefs.h> 38__FBSDID("$FreeBSD: head/lib/libc/gen/fstab.c 90045 2002-02-01 01:32:19Z obrien $");
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42 43#include "namespace.h" 44#include <sys/param.h> 45#include <sys/mount.h> 46#include <sys/stat.h> 47 48#include <errno.h> 49#include <fstab.h> 50#include <paths.h> 51#include <stdio.h> 52#include <stdlib.h> 53#include <string.h> 54#include <unistd.h> 55#include "un-namespace.h" 56 57static FILE *_fs_fp; 58static struct fstab _fs_fstab; 59static int LineNo = 0; 60
| 39 40#include "namespace.h" 41#include <sys/param.h> 42#include <sys/mount.h> 43#include <sys/stat.h> 44 45#include <errno.h> 46#include <fstab.h> 47#include <paths.h> 48#include <stdio.h> 49#include <stdlib.h> 50#include <string.h> 51#include <unistd.h> 52#include "un-namespace.h" 53 54static FILE *_fs_fp; 55static struct fstab _fs_fstab; 56static int LineNo = 0; 57
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61static void error __P((int)); 62static void fixfsfile __P((void)); 63static int fstabscan __P((void));
| 58static void error(int); 59static void fixfsfile(void); 60static int fstabscan(void);
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64 65static void 66fixfsfile() 67{ 68 static char buf[sizeof(_PATH_DEV) + MNAMELEN]; 69 struct stat sb; 70 struct statfs sf; 71 72 if (strcmp(_fs_fstab.fs_file, "/") != 0) 73 return; 74 if (statfs("/", &sf) != 0) 75 return; 76 if (sf.f_mntfromname[0] == '/') 77 buf[0] = '\0'; 78 else 79 strcpy(buf, _PATH_DEV); 80 strcat(buf, sf.f_mntfromname); 81 if (stat(buf, &sb) != 0 || 82 (!S_ISBLK(sb.st_mode) && !S_ISCHR(sb.st_mode))) 83 return; 84 _fs_fstab.fs_spec = buf; 85} 86 87static int 88fstabscan() 89{ 90 char *cp, *p; 91#define MAXLINELENGTH 1024 92 static char line[MAXLINELENGTH]; 93 char subline[MAXLINELENGTH]; 94 int typexx; 95 96 for (;;) { 97 98 if (!(p = fgets(line, sizeof(line), _fs_fp))) 99 return(0); 100/* OLD_STYLE_FSTAB */ 101 ++LineNo; 102 if (*line == '#' || *line == '\n') 103 continue; 104 if (!strpbrk(p, " \t")) { 105 _fs_fstab.fs_spec = strsep(&p, ":\n"); 106 _fs_fstab.fs_file = strsep(&p, ":\n"); 107 fixfsfile(); 108 _fs_fstab.fs_type = strsep(&p, ":\n"); 109 if (_fs_fstab.fs_type) { 110 if (!strcmp(_fs_fstab.fs_type, FSTAB_XX)) 111 continue; 112 _fs_fstab.fs_mntops = _fs_fstab.fs_type; 113 _fs_fstab.fs_vfstype = 114 strcmp(_fs_fstab.fs_type, FSTAB_SW) ? 115 "ufs" : "swap"; 116 if ((cp = strsep(&p, ":\n")) != NULL) { 117 _fs_fstab.fs_freq = atoi(cp); 118 if ((cp = strsep(&p, ":\n")) != NULL) { 119 _fs_fstab.fs_passno = atoi(cp); 120 return(1); 121 } 122 } 123 } 124 goto bad; 125 } 126/* OLD_STYLE_FSTAB */ 127 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 128 ; 129 _fs_fstab.fs_spec = cp; 130 if (!_fs_fstab.fs_spec || *_fs_fstab.fs_spec == '#') 131 continue; 132 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 133 ; 134 _fs_fstab.fs_file = cp; 135 fixfsfile(); 136 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 137 ; 138 _fs_fstab.fs_vfstype = cp; 139 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 140 ; 141 _fs_fstab.fs_mntops = cp; 142 if (_fs_fstab.fs_mntops == NULL) 143 goto bad; 144 _fs_fstab.fs_freq = 0; 145 _fs_fstab.fs_passno = 0; 146 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 147 ; 148 if (cp != NULL) { 149 _fs_fstab.fs_freq = atoi(cp); 150 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 151 ; 152 if (cp != NULL) 153 _fs_fstab.fs_passno = atoi(cp); 154 } 155 strcpy(subline, _fs_fstab.fs_mntops); 156 p = subline; 157 for (typexx = 0, cp = strsep(&p, ","); cp; 158 cp = strsep(&p, ",")) { 159 if (strlen(cp) != 2) 160 continue; 161 if (!strcmp(cp, FSTAB_RW)) { 162 _fs_fstab.fs_type = FSTAB_RW; 163 break; 164 } 165 if (!strcmp(cp, FSTAB_RQ)) { 166 _fs_fstab.fs_type = FSTAB_RQ; 167 break; 168 } 169 if (!strcmp(cp, FSTAB_RO)) { 170 _fs_fstab.fs_type = FSTAB_RO; 171 break; 172 } 173 if (!strcmp(cp, FSTAB_SW)) { 174 _fs_fstab.fs_type = FSTAB_SW; 175 break; 176 } 177 if (!strcmp(cp, FSTAB_XX)) { 178 _fs_fstab.fs_type = FSTAB_XX; 179 typexx++; 180 break; 181 } 182 } 183 if (typexx) 184 continue; 185 if (cp != NULL) 186 return(1); 187 188bad: /* no way to distinguish between EOF and syntax error */ 189 error(EFTYPE); 190 } 191 /* NOTREACHED */ 192} 193 194struct fstab * 195getfsent() 196{ 197 if ((!_fs_fp && !setfsent()) || !fstabscan()) 198 return((struct fstab *)NULL); 199 return(&_fs_fstab); 200} 201 202struct fstab * 203getfsspec(name)
| 61 62static void 63fixfsfile() 64{ 65 static char buf[sizeof(_PATH_DEV) + MNAMELEN]; 66 struct stat sb; 67 struct statfs sf; 68 69 if (strcmp(_fs_fstab.fs_file, "/") != 0) 70 return; 71 if (statfs("/", &sf) != 0) 72 return; 73 if (sf.f_mntfromname[0] == '/') 74 buf[0] = '\0'; 75 else 76 strcpy(buf, _PATH_DEV); 77 strcat(buf, sf.f_mntfromname); 78 if (stat(buf, &sb) != 0 || 79 (!S_ISBLK(sb.st_mode) && !S_ISCHR(sb.st_mode))) 80 return; 81 _fs_fstab.fs_spec = buf; 82} 83 84static int 85fstabscan() 86{ 87 char *cp, *p; 88#define MAXLINELENGTH 1024 89 static char line[MAXLINELENGTH]; 90 char subline[MAXLINELENGTH]; 91 int typexx; 92 93 for (;;) { 94 95 if (!(p = fgets(line, sizeof(line), _fs_fp))) 96 return(0); 97/* OLD_STYLE_FSTAB */ 98 ++LineNo; 99 if (*line == '#' || *line == '\n') 100 continue; 101 if (!strpbrk(p, " \t")) { 102 _fs_fstab.fs_spec = strsep(&p, ":\n"); 103 _fs_fstab.fs_file = strsep(&p, ":\n"); 104 fixfsfile(); 105 _fs_fstab.fs_type = strsep(&p, ":\n"); 106 if (_fs_fstab.fs_type) { 107 if (!strcmp(_fs_fstab.fs_type, FSTAB_XX)) 108 continue; 109 _fs_fstab.fs_mntops = _fs_fstab.fs_type; 110 _fs_fstab.fs_vfstype = 111 strcmp(_fs_fstab.fs_type, FSTAB_SW) ? 112 "ufs" : "swap"; 113 if ((cp = strsep(&p, ":\n")) != NULL) { 114 _fs_fstab.fs_freq = atoi(cp); 115 if ((cp = strsep(&p, ":\n")) != NULL) { 116 _fs_fstab.fs_passno = atoi(cp); 117 return(1); 118 } 119 } 120 } 121 goto bad; 122 } 123/* OLD_STYLE_FSTAB */ 124 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 125 ; 126 _fs_fstab.fs_spec = cp; 127 if (!_fs_fstab.fs_spec || *_fs_fstab.fs_spec == '#') 128 continue; 129 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 130 ; 131 _fs_fstab.fs_file = cp; 132 fixfsfile(); 133 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 134 ; 135 _fs_fstab.fs_vfstype = cp; 136 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 137 ; 138 _fs_fstab.fs_mntops = cp; 139 if (_fs_fstab.fs_mntops == NULL) 140 goto bad; 141 _fs_fstab.fs_freq = 0; 142 _fs_fstab.fs_passno = 0; 143 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 144 ; 145 if (cp != NULL) { 146 _fs_fstab.fs_freq = atoi(cp); 147 while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0') 148 ; 149 if (cp != NULL) 150 _fs_fstab.fs_passno = atoi(cp); 151 } 152 strcpy(subline, _fs_fstab.fs_mntops); 153 p = subline; 154 for (typexx = 0, cp = strsep(&p, ","); cp; 155 cp = strsep(&p, ",")) { 156 if (strlen(cp) != 2) 157 continue; 158 if (!strcmp(cp, FSTAB_RW)) { 159 _fs_fstab.fs_type = FSTAB_RW; 160 break; 161 } 162 if (!strcmp(cp, FSTAB_RQ)) { 163 _fs_fstab.fs_type = FSTAB_RQ; 164 break; 165 } 166 if (!strcmp(cp, FSTAB_RO)) { 167 _fs_fstab.fs_type = FSTAB_RO; 168 break; 169 } 170 if (!strcmp(cp, FSTAB_SW)) { 171 _fs_fstab.fs_type = FSTAB_SW; 172 break; 173 } 174 if (!strcmp(cp, FSTAB_XX)) { 175 _fs_fstab.fs_type = FSTAB_XX; 176 typexx++; 177 break; 178 } 179 } 180 if (typexx) 181 continue; 182 if (cp != NULL) 183 return(1); 184 185bad: /* no way to distinguish between EOF and syntax error */ 186 error(EFTYPE); 187 } 188 /* NOTREACHED */ 189} 190 191struct fstab * 192getfsent() 193{ 194 if ((!_fs_fp && !setfsent()) || !fstabscan()) 195 return((struct fstab *)NULL); 196 return(&_fs_fstab); 197} 198 199struct fstab * 200getfsspec(name)
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204 register const char *name;
| 201 const char *name;
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205{ 206 if (setfsent()) 207 while (fstabscan()) 208 if (!strcmp(_fs_fstab.fs_spec, name)) 209 return(&_fs_fstab); 210 return((struct fstab *)NULL); 211} 212 213struct fstab * 214getfsfile(name)
| 202{ 203 if (setfsent()) 204 while (fstabscan()) 205 if (!strcmp(_fs_fstab.fs_spec, name)) 206 return(&_fs_fstab); 207 return((struct fstab *)NULL); 208} 209 210struct fstab * 211getfsfile(name)
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215 register const char *name;
| 212 const char *name;
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216{ 217 if (setfsent()) 218 while (fstabscan()) 219 if (!strcmp(_fs_fstab.fs_file, name)) 220 return(&_fs_fstab); 221 return((struct fstab *)NULL); 222} 223 224int 225setfsent() 226{ 227 if (_fs_fp) { 228 rewind(_fs_fp); 229 LineNo = 0; 230 return(1); 231 } 232 if ((_fs_fp = fopen(_PATH_FSTAB, "r")) != NULL) { 233 LineNo = 0; 234 return(1); 235 } 236 error(errno); 237 return(0); 238} 239 240void 241endfsent() 242{ 243 if (_fs_fp) { 244 (void)fclose(_fs_fp); 245 _fs_fp = NULL; 246 } 247} 248 249static void 250error(err) 251 int err; 252{ 253 char *p; 254 char num[30]; 255 256 (void)_write(STDERR_FILENO, "fstab: ", 7); 257 (void)_write(STDERR_FILENO, _PATH_FSTAB, sizeof(_PATH_FSTAB) - 1); 258 (void)_write(STDERR_FILENO, ":", 1); 259 sprintf(num, "%d: ", LineNo); 260 (void)_write(STDERR_FILENO, num, strlen(num)); 261 p = strerror(err); 262 (void)_write(STDERR_FILENO, p, strlen(p)); 263 (void)_write(STDERR_FILENO, "\n", 1); 264}
| 213{ 214 if (setfsent()) 215 while (fstabscan()) 216 if (!strcmp(_fs_fstab.fs_file, name)) 217 return(&_fs_fstab); 218 return((struct fstab *)NULL); 219} 220 221int 222setfsent() 223{ 224 if (_fs_fp) { 225 rewind(_fs_fp); 226 LineNo = 0; 227 return(1); 228 } 229 if ((_fs_fp = fopen(_PATH_FSTAB, "r")) != NULL) { 230 LineNo = 0; 231 return(1); 232 } 233 error(errno); 234 return(0); 235} 236 237void 238endfsent() 239{ 240 if (_fs_fp) { 241 (void)fclose(_fs_fp); 242 _fs_fp = NULL; 243 } 244} 245 246static void 247error(err) 248 int err; 249{ 250 char *p; 251 char num[30]; 252 253 (void)_write(STDERR_FILENO, "fstab: ", 7); 254 (void)_write(STDERR_FILENO, _PATH_FSTAB, sizeof(_PATH_FSTAB) - 1); 255 (void)_write(STDERR_FILENO, ":", 1); 256 sprintf(num, "%d: ", LineNo); 257 (void)_write(STDERR_FILENO, num, strlen(num)); 258 p = strerror(err); 259 (void)_write(STDERR_FILENO, p, strlen(p)); 260 (void)_write(STDERR_FILENO, "\n", 1); 261}
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