1 /* 2 * Copyright (c) 1983, 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 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1983, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/4/95"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 47 48 #include <sys/param.h> 49 #include <sys/stat.h> 50 51 #include <ufs/ufs/dinode.h> 52 #include <protocols/dumprestore.h> 53 54 #include <err.h> 55 #include <limits.h> 56 #include <locale.h> 57 #include <paths.h> 58 #include <stdio.h> 59 #include <stdlib.h> 60 #include <string.h> 61 #include <unistd.h> 62 63 #include "restore.h" 64 #include "extern.h" 65 66 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 67 int hflag = 1, mflag = 1, Nflag = 0; 68 int uflag = 0; 69 char command = '\0'; 70 long dumpnum = 1; 71 long volno = 0; 72 long ntrec; 73 char *dumpmap; 74 char *usedinomap; 75 ino_t maxino; 76 time_t dumptime; 77 time_t dumpdate; 78 FILE *terminal; 79 80 static void obsolete(int *, char **[]); 81 static void usage(void) __dead2; 82 83 int 84 main(int argc, char *argv[]) 85 { 86 int ch; 87 ino_t ino; 88 char *inputdev; 89 char *symtbl = "./restoresymtable"; 90 char *p, name[MAXPATHLEN]; 91 92 /* Temp files should *not* be readable. We set permissions later. */ 93 (void) umask(077); 94 95 if (argc < 2) 96 usage(); 97 98 (void)setlocale(LC_ALL, ""); 99 100 if ((inputdev = getenv("TAPE")) == NULL) 101 inputdev = _PATH_DEFTAPE; 102 obsolete(&argc, &argv); 103 while ((ch = getopt(argc, argv, "b:df:himNRrs:tuvxy")) != -1) 104 switch(ch) { 105 case 'b': 106 /* Change default tape blocksize. */ 107 bflag = 1; 108 ntrec = strtol(optarg, &p, 10); 109 if (*p) 110 errx(1, "illegal blocksize -- %s", optarg); 111 if (ntrec <= 0) 112 errx(1, "block size must be greater than 0"); 113 break; 114 case 'd': 115 dflag = 1; 116 break; 117 case 'f': 118 inputdev = optarg; 119 break; 120 case 'h': 121 hflag = 0; 122 break; 123 case 'i': 124 case 'R': 125 case 'r': 126 case 't': 127 case 'x': 128 if (command != '\0') 129 errx(1, 130 "%c and %c options are mutually exclusive", 131 ch, command); 132 command = ch; 133 break; 134 case 'm': 135 mflag = 0; 136 break; 137 case 'N': 138 Nflag = 1; 139 break; 140 case 's': 141 /* Dumpnum (skip to) for multifile dump tapes. */ 142 dumpnum = strtol(optarg, &p, 10); 143 if (*p) 144 errx(1, "illegal dump number -- %s", optarg); 145 if (dumpnum <= 0) 146 errx(1, "dump number must be greater than 0"); 147 break; 148 case 'u': 149 uflag = 1; 150 break; 151 case 'v': 152 vflag = 1; 153 break; 154 case 'y': 155 yflag = 1; 156 break; 157 default: 158 usage(); 159 } 160 argc -= optind; 161 argv += optind; 162 163 if (command == '\0') 164 errx(1, "none of i, R, r, t or x options specified"); 165 166 if (signal(SIGINT, onintr) == SIG_IGN) 167 (void) signal(SIGINT, SIG_IGN); 168 if (signal(SIGTERM, onintr) == SIG_IGN) 169 (void) signal(SIGTERM, SIG_IGN); 170 setlinebuf(stderr); 171 172 setinput(inputdev); 173 174 if (argc == 0) { 175 argc = 1; 176 *--argv = "."; 177 } 178 179 switch (command) { 180 /* 181 * Interactive mode. 182 */ 183 case 'i': 184 setup(); 185 extractdirs(1); 186 initsymtable(NULL); 187 runcmdshell(); 188 break; 189 /* 190 * Incremental restoration of a file system. 191 */ 192 case 'r': 193 setup(); 194 if (dumptime > 0) { 195 /* 196 * This is an incremental dump tape. 197 */ 198 vprintf(stdout, "Begin incremental restore\n"); 199 initsymtable(symtbl); 200 extractdirs(1); 201 removeoldleaves(); 202 vprintf(stdout, "Calculate node updates.\n"); 203 treescan(".", ROOTINO, nodeupdates); 204 findunreflinks(); 205 removeoldnodes(); 206 } else { 207 /* 208 * This is a level zero dump tape. 209 */ 210 vprintf(stdout, "Begin level 0 restore\n"); 211 initsymtable((char *)0); 212 extractdirs(1); 213 vprintf(stdout, "Calculate extraction list.\n"); 214 treescan(".", ROOTINO, nodeupdates); 215 } 216 createleaves(symtbl); 217 createlinks(); 218 setdirmodes(FORCE); 219 checkrestore(); 220 if (dflag) { 221 vprintf(stdout, "Verify the directory structure\n"); 222 treescan(".", ROOTINO, verifyfile); 223 } 224 dumpsymtable(symtbl, (long)1); 225 break; 226 /* 227 * Resume an incremental file system restoration. 228 */ 229 case 'R': 230 initsymtable(symtbl); 231 skipmaps(); 232 skipdirs(); 233 createleaves(symtbl); 234 createlinks(); 235 setdirmodes(FORCE); 236 checkrestore(); 237 dumpsymtable(symtbl, (long)1); 238 break; 239 /* 240 * List contents of tape. 241 */ 242 case 't': 243 setup(); 244 extractdirs(0); 245 initsymtable((char *)0); 246 while (argc--) { 247 canon(*argv++, name, sizeof(name)); 248 ino = dirlookup(name); 249 if (ino == 0) 250 continue; 251 treescan(name, ino, listfile); 252 } 253 break; 254 /* 255 * Batch extraction of tape contents. 256 */ 257 case 'x': 258 setup(); 259 extractdirs(1); 260 initsymtable((char *)0); 261 while (argc--) { 262 canon(*argv++, name, sizeof(name)); 263 ino = dirlookup(name); 264 if (ino == 0) 265 continue; 266 if (mflag) 267 pathcheck(name); 268 treescan(name, ino, addfile); 269 } 270 createfiles(); 271 createlinks(); 272 setdirmodes(0); 273 if (dflag) 274 checkrestore(); 275 break; 276 } 277 done(0); 278 /* NOTREACHED */ 279 } 280 281 static void 282 usage() 283 { 284 (void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n\t%s\n", 285 "restore -i [-cdhmNuvy] [-b blocksize] [-f file] [-s fileno]", 286 "restore -r [-cdNuvy] [-b blocksize] [-f file] [-s fileno]", 287 "restore -R [-cdNuvy] [-b blocksize] [-f file] [-s fileno]", 288 "restore -x [-cdhmNuvy] [-b blocksize] [-f file] [-s fileno] [file ...]", 289 "restore -t [-cdhNuvy] [-b blocksize] [-f file] [-s fileno] [file ...]"); 290 done(1); 291 } 292 293 /* 294 * obsolete -- 295 * Change set of key letters and ordered arguments into something 296 * getopt(3) will like. 297 */ 298 static void 299 obsolete(int *argcp, char **argvp[]) 300 { 301 int argc, flags; 302 char *ap, **argv, *flagsp, **nargv, *p; 303 304 /* Setup. */ 305 argv = *argvp; 306 argc = *argcp; 307 308 /* Return if no arguments or first argument has leading dash. */ 309 ap = argv[1]; 310 if (argc == 1 || *ap == '-') 311 return; 312 313 /* Allocate space for new arguments. */ 314 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 315 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 316 err(1, NULL); 317 318 *nargv++ = *argv; 319 argv += 2, argc -= 2; 320 321 for (flags = 0; *ap; ++ap) { 322 switch (*ap) { 323 case 'b': 324 case 'f': 325 case 's': 326 if (*argv == NULL) { 327 warnx("option requires an argument -- %c", *ap); 328 usage(); 329 } 330 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 331 err(1, NULL); 332 nargv[0][0] = '-'; 333 nargv[0][1] = *ap; 334 (void)strcpy(&nargv[0][2], *argv); 335 ++argv; 336 ++nargv; 337 break; 338 default: 339 if (!flags) { 340 *p++ = '-'; 341 flags = 1; 342 } 343 *p++ = *ap; 344 break; 345 } 346 } 347 348 /* Terminate flags. */ 349 if (flags) { 350 *p = '\0'; 351 *nargv++ = flagsp; 352 } 353 354 /* Copy remaining arguments. */ 355 while ((*nargv++ = *argv++)); 356 357 /* Update argument count. */ 358 *argcp = nargv - *argvp - 1; 359 } 360