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 #endif /* not lint */ 41 42 #include <sys/cdefs.h> 43 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/stat.h> 47 48 #include <ufs/ufs/dinode.h> 49 #include <protocols/dumprestore.h> 50 51 #include <err.h> 52 #include <limits.h> 53 #include <locale.h> 54 #include <paths.h> 55 #include <stdio.h> 56 #include <stdlib.h> 57 #include <string.h> 58 #include <unistd.h> 59 60 #include "restore.h" 61 #include "extern.h" 62 63 int bflag = 0, cvtflag = 0, dflag = 0, Dflag = 0, vflag = 0, yflag = 0; 64 int hflag = 1, mflag = 1, Nflag = 0; 65 int uflag = 0; 66 int pipecmd = 0; 67 char command = '\0'; 68 long dumpnum = 1; 69 long volno = 0; 70 long ntrec; 71 char *dumpmap; 72 char *usedinomap; 73 ino_t maxino; 74 time_t dumptime; 75 time_t dumpdate; 76 FILE *terminal; 77 78 static void obsolete(int *, char **[]); 79 static void usage(void) __dead2; 80 81 int 82 main(int argc, char *argv[]) 83 { 84 int ch; 85 ino_t ino; 86 char *inputdev; 87 char *symtbl = "./restoresymtable"; 88 char *p, name[MAXPATHLEN]; 89 90 /* Temp files should *not* be readable. We set permissions later. */ 91 (void) umask(077); 92 93 if (argc < 2) 94 usage(); 95 96 (void)setlocale(LC_ALL, ""); 97 98 inputdev = NULL; 99 obsolete(&argc, &argv); 100 while ((ch = getopt(argc, argv, "b:dDf:himNP:Rrs:tuvxy")) != -1) 101 switch(ch) { 102 case 'b': 103 /* Change default tape blocksize. */ 104 bflag = 1; 105 ntrec = strtol(optarg, &p, 10); 106 if (*p) 107 errx(1, "illegal blocksize -- %s", optarg); 108 if (ntrec <= 0) 109 errx(1, "block size must be greater than 0"); 110 break; 111 case 'd': 112 dflag = 1; 113 break; 114 case 'D': 115 Dflag = 1; 116 break; 117 case 'f': 118 if (pipecmd) 119 errx(1, 120 "-P and -f options are mutually exclusive"); 121 inputdev = optarg; 122 break; 123 case 'P': 124 if (!pipecmd && inputdev) 125 errx(1, 126 "-P and -f options are mutually exclusive"); 127 inputdev = optarg; 128 pipecmd = 1; 129 break; 130 case 'h': 131 hflag = 0; 132 break; 133 case 'i': 134 case 'R': 135 case 'r': 136 case 't': 137 case 'x': 138 if (command != '\0') 139 errx(1, 140 "%c and %c options are mutually exclusive", 141 ch, command); 142 command = ch; 143 break; 144 case 'm': 145 mflag = 0; 146 break; 147 case 'N': 148 Nflag = 1; 149 break; 150 case 's': 151 /* Dumpnum (skip to) for multifile dump tapes. */ 152 dumpnum = strtol(optarg, &p, 10); 153 if (*p) 154 errx(1, "illegal dump number -- %s", optarg); 155 if (dumpnum <= 0) 156 errx(1, "dump number must be greater than 0"); 157 break; 158 case 'u': 159 uflag = 1; 160 break; 161 case 'v': 162 vflag = 1; 163 break; 164 case 'y': 165 yflag = 1; 166 break; 167 default: 168 usage(); 169 } 170 argc -= optind; 171 argv += optind; 172 173 if (command == '\0') 174 errx(1, "none of i, R, r, t or x options specified"); 175 176 if (signal(SIGINT, onintr) == SIG_IGN) 177 (void) signal(SIGINT, SIG_IGN); 178 if (signal(SIGTERM, onintr) == SIG_IGN) 179 (void) signal(SIGTERM, SIG_IGN); 180 setlinebuf(stderr); 181 182 if (inputdev == NULL && (inputdev = getenv("TAPE")) == NULL) 183 inputdev = _PATH_DEFTAPE; 184 setinput(inputdev, pipecmd); 185 186 if (argc == 0) { 187 argc = 1; 188 *--argv = "."; 189 } 190 191 switch (command) { 192 /* 193 * Interactive mode. 194 */ 195 case 'i': 196 setup(); 197 extractdirs(1); 198 initsymtable(NULL); 199 runcmdshell(); 200 break; 201 /* 202 * Incremental restoration of a file system. 203 */ 204 case 'r': 205 setup(); 206 if (dumptime > 0) { 207 /* 208 * This is an incremental dump tape. 209 */ 210 vprintf(stdout, "Begin incremental restore\n"); 211 initsymtable(symtbl); 212 extractdirs(1); 213 removeoldleaves(); 214 vprintf(stdout, "Calculate node updates.\n"); 215 treescan(".", ROOTINO, nodeupdates); 216 findunreflinks(); 217 removeoldnodes(); 218 } else { 219 /* 220 * This is a level zero dump tape. 221 */ 222 vprintf(stdout, "Begin level 0 restore\n"); 223 initsymtable((char *)0); 224 extractdirs(1); 225 vprintf(stdout, "Calculate extraction list.\n"); 226 treescan(".", ROOTINO, nodeupdates); 227 } 228 createleaves(symtbl); 229 createlinks(); 230 setdirmodes(FORCE); 231 checkrestore(); 232 if (dflag) { 233 vprintf(stdout, "Verify the directory structure\n"); 234 treescan(".", ROOTINO, verifyfile); 235 } 236 dumpsymtable(symtbl, (long)1); 237 break; 238 /* 239 * Resume an incremental file system restoration. 240 */ 241 case 'R': 242 initsymtable(symtbl); 243 skipmaps(); 244 skipdirs(); 245 createleaves(symtbl); 246 createlinks(); 247 setdirmodes(FORCE); 248 checkrestore(); 249 dumpsymtable(symtbl, (long)1); 250 break; 251 /* 252 * List contents of tape. 253 */ 254 case 't': 255 setup(); 256 extractdirs(0); 257 initsymtable((char *)0); 258 while (argc--) { 259 canon(*argv++, name, sizeof(name)); 260 ino = dirlookup(name); 261 if (ino == 0) 262 continue; 263 treescan(name, ino, listfile); 264 } 265 break; 266 /* 267 * Batch extraction of tape contents. 268 */ 269 case 'x': 270 setup(); 271 extractdirs(1); 272 initsymtable((char *)0); 273 while (argc--) { 274 canon(*argv++, name, sizeof(name)); 275 ino = dirlookup(name); 276 if (ino == 0) 277 continue; 278 if (mflag) 279 pathcheck(name); 280 treescan(name, ino, addfile); 281 } 282 createfiles(); 283 createlinks(); 284 setdirmodes(0); 285 if (dflag) 286 checkrestore(); 287 break; 288 } 289 done(0); 290 /* NOTREACHED */ 291 } 292 293 static void 294 usage() 295 { 296 const char *const common = 297 "[-b blocksize] [-f file | -P pipecommand] [-s fileno]"; 298 const char *const fileell = "[file ...]"; 299 300 (void)fprintf(stderr, "usage:\t%s %s\n\t%s %s\n\t%s %s\n" 301 "\t%s %s %s\n\t%s %s %s\n", 302 "restore -i [-dhmNuvy]", common, 303 "restore -R [-dNuvy]", common, 304 "restore -r [-dNuvy]", common, 305 "restore -t [-dhNuvy]", common, fileell, 306 "restore -x [-dhmNuvy]", common, fileell); 307 done(1); 308 } 309 310 /* 311 * obsolete -- 312 * Change set of key letters and ordered arguments into something 313 * getopt(3) will like. 314 */ 315 static void 316 obsolete(int *argcp, char **argvp[]) 317 { 318 int argc, flags; 319 char *ap, **argv, *flagsp, **nargv, *p; 320 321 /* Setup. */ 322 argv = *argvp; 323 argc = *argcp; 324 325 /* Return if no arguments or first argument has leading dash. */ 326 ap = argv[1]; 327 if (argc == 1 || *ap == '-') 328 return; 329 330 /* Allocate space for new arguments. */ 331 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 332 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 333 err(1, NULL); 334 335 *nargv++ = *argv; 336 argv += 2, argc -= 2; 337 338 for (flags = 0; *ap; ++ap) { 339 switch (*ap) { 340 case 'b': 341 case 'f': 342 case 's': 343 if (*argv == NULL) { 344 warnx("option requires an argument -- %c", *ap); 345 usage(); 346 } 347 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 348 err(1, NULL); 349 nargv[0][0] = '-'; 350 nargv[0][1] = *ap; 351 (void)strcpy(&nargv[0][2], *argv); 352 ++argv; 353 ++nargv; 354 break; 355 default: 356 if (!flags) { 357 *p++ = '-'; 358 flags = 1; 359 } 360 *p++ = *ap; 361 break; 362 } 363 } 364 365 /* Terminate flags. */ 366 if (flags) { 367 *p = '\0'; 368 *nargv++ = flagsp; 369 } else 370 free(flagsp); 371 372 /* Copy remaining arguments. */ 373 while ((*nargv++ = *argv++)); 374 375 /* Update argument count. */ 376 *argcp = nargv - *argvp - 1; 377 } 378