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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef lint 31 static const char copyright[] = 32 "@(#) Copyright (c) 1983, 1993\n\ 33 The Regents of the University of California. All rights reserved.\n"; 34 #endif /* not lint */ 35 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/4/95"; 39 #endif 40 static const char rcsid[] = 41 "$FreeBSD$"; 42 #endif /* not lint */ 43 44 #include <sys/param.h> 45 #include <sys/stat.h> 46 47 #include <ufs/ufs/dinode.h> 48 #include <protocols/dumprestore.h> 49 50 #include <err.h> 51 #include <limits.h> 52 #include <locale.h> 53 #include <paths.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <unistd.h> 58 59 #include "restore.h" 60 #include "extern.h" 61 62 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 63 int hflag = 1, mflag = 1, Nflag = 0; 64 int uflag = 0; 65 int pipecmd = 0; 66 char command = '\0'; 67 long dumpnum = 1; 68 long volno = 0; 69 long ntrec; 70 char *dumpmap; 71 char *usedinomap; 72 ino_t maxino; 73 time_t dumptime; 74 time_t dumpdate; 75 FILE *terminal; 76 77 static void obsolete(int *, char **[]); 78 static void usage(void) __dead2; 79 80 int 81 main(int argc, char *argv[]) 82 { 83 int ch; 84 ino_t ino; 85 char *inputdev; 86 char *symtbl = "./restoresymtable"; 87 char *p, name[MAXPATHLEN]; 88 89 /* Temp files should *not* be readable. We set permissions later. */ 90 (void) umask(077); 91 92 if (argc < 2) 93 usage(); 94 95 (void)setlocale(LC_ALL, ""); 96 97 inputdev = NULL; 98 obsolete(&argc, &argv); 99 while ((ch = getopt(argc, argv, "b:df:himNP:Rrs:tuvxy")) != -1) 100 switch(ch) { 101 case 'b': 102 /* Change default tape blocksize. */ 103 bflag = 1; 104 ntrec = strtol(optarg, &p, 10); 105 if (*p) 106 errx(1, "illegal blocksize -- %s", optarg); 107 if (ntrec <= 0) 108 errx(1, "block size must be greater than 0"); 109 break; 110 case 'd': 111 dflag = 1; 112 break; 113 case 'f': 114 if (pipecmd) 115 errx(1, 116 "-P and -f options are mutually exclusive"); 117 inputdev = optarg; 118 break; 119 case 'P': 120 if (!pipecmd && inputdev) 121 errx(1, 122 "-P and -f options are mutually exclusive"); 123 inputdev = optarg; 124 pipecmd = 1; 125 break; 126 case 'h': 127 hflag = 0; 128 break; 129 case 'i': 130 case 'R': 131 case 'r': 132 case 't': 133 case 'x': 134 if (command != '\0') 135 errx(1, 136 "%c and %c options are mutually exclusive", 137 ch, command); 138 command = ch; 139 break; 140 case 'm': 141 mflag = 0; 142 break; 143 case 'N': 144 Nflag = 1; 145 break; 146 case 's': 147 /* Dumpnum (skip to) for multifile dump tapes. */ 148 dumpnum = strtol(optarg, &p, 10); 149 if (*p) 150 errx(1, "illegal dump number -- %s", optarg); 151 if (dumpnum <= 0) 152 errx(1, "dump number must be greater than 0"); 153 break; 154 case 'u': 155 uflag = 1; 156 break; 157 case 'v': 158 vflag = 1; 159 break; 160 case 'y': 161 yflag = 1; 162 break; 163 default: 164 usage(); 165 } 166 argc -= optind; 167 argv += optind; 168 169 if (command == '\0') 170 errx(1, "none of i, R, r, t or x options specified"); 171 172 if (signal(SIGINT, onintr) == SIG_IGN) 173 (void) signal(SIGINT, SIG_IGN); 174 if (signal(SIGTERM, onintr) == SIG_IGN) 175 (void) signal(SIGTERM, SIG_IGN); 176 setlinebuf(stderr); 177 178 if (inputdev == NULL && (inputdev = getenv("TAPE")) == NULL) 179 inputdev = _PATH_DEFTAPE; 180 setinput(inputdev, pipecmd); 181 182 if (argc == 0) { 183 argc = 1; 184 *--argv = "."; 185 } 186 187 switch (command) { 188 /* 189 * Interactive mode. 190 */ 191 case 'i': 192 setup(); 193 extractdirs(1); 194 initsymtable(NULL); 195 runcmdshell(); 196 break; 197 /* 198 * Incremental restoration of a file system. 199 */ 200 case 'r': 201 setup(); 202 if (dumptime > 0) { 203 /* 204 * This is an incremental dump tape. 205 */ 206 vprintf(stdout, "Begin incremental restore\n"); 207 initsymtable(symtbl); 208 extractdirs(1); 209 removeoldleaves(); 210 vprintf(stdout, "Calculate node updates.\n"); 211 treescan(".", ROOTINO, nodeupdates); 212 findunreflinks(); 213 removeoldnodes(); 214 } else { 215 /* 216 * This is a level zero dump tape. 217 */ 218 vprintf(stdout, "Begin level 0 restore\n"); 219 initsymtable((char *)0); 220 extractdirs(1); 221 vprintf(stdout, "Calculate extraction list.\n"); 222 treescan(".", ROOTINO, nodeupdates); 223 } 224 createleaves(symtbl); 225 createlinks(); 226 setdirmodes(FORCE); 227 checkrestore(); 228 if (dflag) { 229 vprintf(stdout, "Verify the directory structure\n"); 230 treescan(".", ROOTINO, verifyfile); 231 } 232 dumpsymtable(symtbl, (long)1); 233 break; 234 /* 235 * Resume an incremental file system restoration. 236 */ 237 case 'R': 238 initsymtable(symtbl); 239 skipmaps(); 240 skipdirs(); 241 createleaves(symtbl); 242 createlinks(); 243 setdirmodes(FORCE); 244 checkrestore(); 245 dumpsymtable(symtbl, (long)1); 246 break; 247 /* 248 * List contents of tape. 249 */ 250 case 't': 251 setup(); 252 extractdirs(0); 253 initsymtable((char *)0); 254 while (argc--) { 255 canon(*argv++, name, sizeof(name)); 256 ino = dirlookup(name); 257 if (ino == 0) 258 continue; 259 treescan(name, ino, listfile); 260 } 261 break; 262 /* 263 * Batch extraction of tape contents. 264 */ 265 case 'x': 266 setup(); 267 extractdirs(1); 268 initsymtable((char *)0); 269 while (argc--) { 270 canon(*argv++, name, sizeof(name)); 271 ino = dirlookup(name); 272 if (ino == 0) 273 continue; 274 if (mflag) 275 pathcheck(name); 276 treescan(name, ino, addfile); 277 } 278 createfiles(); 279 createlinks(); 280 setdirmodes(0); 281 if (dflag) 282 checkrestore(); 283 break; 284 } 285 done(0); 286 /* NOTREACHED */ 287 } 288 289 static void 290 usage() 291 { 292 const char *const common = 293 "[-b blocksize] [-P pipecmd | -f file] [-s fileno]"; 294 const char *const fileell = "[file ...]"; 295 296 (void)fprintf(stderr, "usage:\t%s %s\n\t%s %s\n\t%s %s\n" 297 "\t%s %s %s\n\t%s %s %s\n", 298 "restore -i [-cdhmNuvy]", common, 299 "restore -r [-cdNuvy]", common, 300 "restore -R [-cdNuvy]", common, 301 "restore -x [-cdhmNuvy]", common, fileell, 302 "restore -t [-cdhNuvy]", common, fileell); 303 done(1); 304 } 305 306 /* 307 * obsolete -- 308 * Change set of key letters and ordered arguments into something 309 * getopt(3) will like. 310 */ 311 static void 312 obsolete(int *argcp, char **argvp[]) 313 { 314 int argc, flags; 315 char *ap, **argv, *flagsp, **nargv, *p; 316 317 /* Setup. */ 318 argv = *argvp; 319 argc = *argcp; 320 321 /* Return if no arguments or first argument has leading dash. */ 322 ap = argv[1]; 323 if (argc == 1 || *ap == '-') 324 return; 325 326 /* Allocate space for new arguments. */ 327 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 328 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 329 err(1, NULL); 330 331 *nargv++ = *argv; 332 argv += 2, argc -= 2; 333 334 for (flags = 0; *ap; ++ap) { 335 switch (*ap) { 336 case 'b': 337 case 'f': 338 case 's': 339 if (*argv == NULL) { 340 warnx("option requires an argument -- %c", *ap); 341 usage(); 342 } 343 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 344 err(1, NULL); 345 nargv[0][0] = '-'; 346 nargv[0][1] = *ap; 347 (void)strcpy(&nargv[0][2], *argv); 348 ++argv; 349 ++nargv; 350 break; 351 default: 352 if (!flags) { 353 *p++ = '-'; 354 flags = 1; 355 } 356 *p++ = *ap; 357 break; 358 } 359 } 360 361 /* Terminate flags. */ 362 if (flags) { 363 *p = '\0'; 364 *nargv++ = flagsp; 365 } 366 367 /* Copy remaining arguments. */ 368 while ((*nargv++ = *argv++)); 369 370 /* Update argument count. */ 371 *argcp = nargv - *argvp - 1; 372 } 373