1 /* $NetBSD: main.c,v 1.29 2005/01/08 14:30:39 fredb Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/4/95"; 41 #else 42 __RCSID("$NetBSD: main.c,v 1.29 2005/01/08 14:30:39 fredb Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/time.h> 48 49 #include <ufs/ufs/dinode.h> 50 #include <ufs/ffs/fs.h> 51 #include <protocols/dumprestore.h> 52 53 #include <err.h> 54 #include <errno.h> 55 #include <paths.h> 56 #include <signal.h> 57 #include <stdio.h> 58 #include <stdlib.h> 59 #include <string.h> 60 #include <unistd.h> 61 62 #include "restore.h" 63 #include "extern.h" 64 65 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 66 int hflag = 1, mflag = 1, Dflag = 0, Nflag = 0; 67 char command = '\0'; 68 int32_t dumpnum = 1; 69 int32_t volno = 0; 70 int32_t ntrec; 71 char *dumpmap; 72 char *usedinomap; 73 ino_t maxino; 74 time_t dumptime; 75 time_t dumpdate; 76 size_t pagesize; 77 FILE *terminal; 78 char *tmpdir; 79 int dotflag = 0; 80 81 FILE *Mtreefile = NULL; 82 83 int main __P((int, char *[])); 84 static void obsolete __P((int *, char **[])); 85 static void usage __P((void)); 86 87 int 88 main(argc, argv) 89 int argc; 90 char *argv[]; 91 { 92 int ch; 93 ino_t ino; 94 char *inputdev; 95 char *symtbl = "./restoresymtable"; 96 char *p, name[MAXPATHLEN]; 97 98 if (argc < 2) 99 usage(); 100 101 if ((inputdev = getenv("TAPE")) == NULL) 102 inputdev = _PATH_DEFTAPE; 103 if ((tmpdir = getenv("TMPDIR")) == NULL) 104 tmpdir = _PATH_TMP; 105 obsolete(&argc, &argv); 106 while ((ch = getopt(argc, argv, "b:cD:df:himM:NRrs:tuvxy")) != -1) 107 switch (ch) { 108 case 'b': 109 /* Change default tape blocksize. */ 110 bflag = 1; 111 ntrec = strtol(optarg, &p, 10); 112 if (*p) 113 errx(1, "illegal blocksize -- %s", optarg); 114 if (ntrec <= 0) 115 errx(1, "block size must be greater than 0"); 116 break; 117 case 'c': 118 cvtflag = 1; 119 break; 120 case 'D': 121 ddesc = digest_lookup(optarg); 122 if (ddesc == NULL) 123 err(1, "unknown digest algorithm: %s", optarg); 124 Dflag = 1; 125 break; 126 case 'd': 127 dflag = 1; 128 break; 129 case 'f': 130 inputdev = optarg; 131 break; 132 case 'h': 133 hflag = 0; 134 break; 135 case 'i': 136 case 'R': 137 case 'r': 138 case 't': 139 case 'x': 140 if (command != '\0') 141 errx(1, 142 "%c and %c options are mutually exclusive", 143 ch, command); 144 command = ch; 145 break; 146 case 'm': 147 mflag = 0; 148 break; 149 case 'N': 150 Nflag = 1; 151 break; 152 case 'M': 153 Mtreefile = fopen(optarg, "a"); 154 if (Mtreefile == NULL) 155 err(1, "can't open %s", optarg); 156 break; 157 case 's': 158 /* Dumpnum (skip to) for multifile dump tapes. */ 159 dumpnum = strtol(optarg, &p, 10); 160 if (*p) 161 errx(1, "illegal dump number -- %s", optarg); 162 if (dumpnum <= 0) 163 errx(1, "dump number must be greater than 0"); 164 break; 165 case 'u': 166 uflag = 1; 167 break; 168 case 'v': 169 vflag = 1; 170 break; 171 case 'y': 172 yflag = 1; 173 break; 174 default: 175 usage(); 176 } 177 argc -= optind; 178 argv += optind; 179 180 if (command == '\0') 181 errx(1, "none of i, R, r, t or x options specified"); 182 183 if (Nflag || command == 't') 184 uflag = 0; 185 186 if (signal(SIGINT, onintr) == SIG_IGN) 187 (void) signal(SIGINT, SIG_IGN); 188 if (signal(SIGTERM, onintr) == SIG_IGN) 189 (void) signal(SIGTERM, SIG_IGN); 190 setlinebuf(stderr); 191 pagesize = sysconf(_SC_PAGESIZE); 192 193 atexit(cleanup); 194 195 setinput(inputdev); 196 197 if (argc == 0) { 198 argc = 1; 199 *--argv = "."; 200 } 201 202 switch (command) { 203 /* 204 * Interactive mode. 205 */ 206 case 'i': 207 setup(); 208 extractdirs(1); 209 initsymtable(NULL); 210 runcmdshell(); 211 break; 212 /* 213 * Incremental restoration of a file system. 214 */ 215 case 'r': 216 setup(); 217 if (dumptime > 0) { 218 /* 219 * This is an incremental dump tape. 220 */ 221 vprintf(stdout, "Begin incremental restore\n"); 222 initsymtable(symtbl); 223 extractdirs(1); 224 removeoldleaves(); 225 vprintf(stdout, "Calculate node updates.\n"); 226 treescan(".", ROOTINO, nodeupdates); 227 findunreflinks(); 228 removeoldnodes(); 229 } else { 230 /* 231 * This is a level zero dump tape. 232 */ 233 vprintf(stdout, "Begin level 0 restore\n"); 234 initsymtable((char *)0); 235 extractdirs(1); 236 vprintf(stdout, "Calculate extraction list.\n"); 237 treescan(".", ROOTINO, nodeupdates); 238 } 239 createleaves(symtbl); 240 createlinks(); 241 setdirmodes(FORCE); 242 checkrestore(); 243 if (dflag) { 244 vprintf(stdout, "Verify the directory structure\n"); 245 treescan(".", ROOTINO, verifyfile); 246 } 247 dumpsymtable(symtbl, (long)1); 248 break; 249 /* 250 * Resume an incremental file system restoration. 251 */ 252 case 'R': 253 initsymtable(symtbl); 254 skipmaps(); 255 skipdirs(); 256 createleaves(symtbl); 257 createlinks(); 258 setdirmodes(FORCE); 259 checkrestore(); 260 dumpsymtable(symtbl, (long)1); 261 break; 262 /* 263 * List contents of tape. 264 */ 265 case 't': 266 setup(); 267 extractdirs(0); 268 initsymtable((char *)0); 269 while (argc--) { 270 canon(*argv++, name); 271 ino = dirlookup(name); 272 if (ino == 0) 273 continue; 274 treescan(name, ino, listfile); 275 } 276 break; 277 /* 278 * Batch extraction of tape contents. 279 */ 280 case 'x': 281 setup(); 282 extractdirs(1); 283 initsymtable((char *)0); 284 while (argc--) { 285 canon(*argv++, name); 286 ino = dirlookup(name); 287 if (ino == 0) 288 continue; 289 if (ino == ROOTINO) 290 dotflag = 1; 291 if (mflag) 292 pathcheck(name); 293 treescan(name, ino, addfile); 294 } 295 createfiles(); 296 createlinks(); 297 setdirmodes(0); 298 if (dflag) 299 checkrestore(); 300 break; 301 } 302 exit(0); 303 /* NOTREACHED */ 304 } 305 306 static void 307 usage() 308 { 309 const char *progname = getprogname(); 310 311 (void)fprintf(stderr, 312 "usage: %s -i [-cdhmvyN] [-b bsize] [-D algorithm] " 313 "[-f file] [-M mtreefile] [-s fileno]\n", progname); 314 (void)fprintf(stderr, 315 " %s -R [-cdvyN] [-b bsize] [-D algorithm] [-f file] " 316 "[-M mtreefile] [-s fileno]\n", progname); 317 (void)fprintf(stderr, 318 " %s -r [-cdvyN] [-b bsize] [-D algorithm] [-f file] " 319 "[-M mtreefile] [-s fileno]\n", progname); 320 (void)fprintf(stderr, 321 " %s -t [-cdhvy] [-b bsize] [-D algorithm] [-f file]\n" 322 " [-s fileno] [file ...]\n", progname); 323 (void)fprintf(stderr, 324 " %s -x [-cdhmvyN] [-b bsize] [-D algorithm] [-f file]\n" 325 " [-M mtreefile] [-s fileno] [file ...]\n", progname); 326 exit(1); 327 } 328 329 /* 330 * obsolete -- 331 * Change set of key letters and ordered arguments into something 332 * getopt(3) will like. 333 */ 334 static void 335 obsolete(argcp, argvp) 336 int *argcp; 337 char **argvp[]; 338 { 339 int argc, flags; 340 char *ap, **argv, *flagsp, **nargv, *p; 341 342 /* Setup. */ 343 argv = *argvp; 344 argc = *argcp; 345 346 /* Return if no arguments or first argument has leading dash. */ 347 ap = argv[1]; 348 if (argc == 1 || *ap == '-') 349 return; 350 351 /* Allocate space for new arguments. */ 352 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 353 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 354 err(1, NULL); 355 356 *nargv++ = *argv; 357 argv += 2; 358 359 for (flags = 0; *ap; ++ap) { 360 switch (*ap) { 361 case 'b': 362 case 'f': 363 case 's': 364 if (*argv == NULL) { 365 warnx("option requires an argument -- %c", *ap); 366 usage(); 367 } 368 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 369 err(1, NULL); 370 nargv[0][0] = '-'; 371 nargv[0][1] = *ap; 372 (void)strcpy(&nargv[0][2], *argv); 373 ++argv; 374 ++nargv; 375 break; 376 default: 377 if (!flags) { 378 *p++ = '-'; 379 flags = 1; 380 } 381 *p++ = *ap; 382 break; 383 } 384 } 385 386 /* Terminate flags. */ 387 if (flags) { 388 *p = '\0'; 389 *nargv++ = flagsp; 390 } 391 392 /* Copy remaining arguments. */ 393 while ((*nargv++ = *argv++) != NULL) 394 ; 395 396 /* Update argument count. */ 397 *argcp = nargv - *argvp - 1; 398 } 399