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 <paths.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <string.h> 59 #include <unistd.h> 60 61 #include "restore.h" 62 #include "extern.h" 63 64 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 65 int hflag = 1, mflag = 1, Nflag = 0; 66 int uflag = 0; 67 int dokerberos = 0; 68 char command = '\0'; 69 long dumpnum = 1; 70 long volno = 0; 71 long ntrec; 72 char *dumpmap; 73 char *usedinomap; 74 ino_t maxino; 75 time_t dumptime; 76 time_t dumpdate; 77 FILE *terminal; 78 79 static void obsolete __P((int *, char **[])); 80 static void usage __P((void)); 81 82 int 83 main(argc, argv) 84 int argc; 85 char *argv[]; 86 { 87 int ch; 88 ino_t ino; 89 char *inputdev; 90 char *symtbl = "./restoresymtable"; 91 char *p, name[MAXPATHLEN]; 92 93 /* Temp files should *not* be readable. We set permissions later. */ 94 (void) umask(077); 95 96 if (argc < 2) 97 usage(); 98 99 if ((inputdev = getenv("TAPE")) == NULL) 100 inputdev = _PATH_DEFTAPE; 101 obsolete(&argc, &argv); 102 #ifdef KERBEROS 103 #define optlist "b:cdf:hikmNRrs:tuvxy" 104 #else 105 #define optlist "b:cdf:himNRrs:tuvxy" 106 #endif 107 while ((ch = getopt(argc, argv, optlist)) != -1) 108 switch(ch) { 109 case 'b': 110 /* Change default tape blocksize. */ 111 bflag = 1; 112 ntrec = strtol(optarg, &p, 10); 113 if (*p) 114 errx(1, "illegal blocksize -- %s", optarg); 115 if (ntrec <= 0) 116 errx(1, "block size must be greater than 0"); 117 break; 118 case 'c': 119 cvtflag = 1; 120 break; 121 case 'd': 122 dflag = 1; 123 break; 124 case 'f': 125 inputdev = optarg; 126 break; 127 case 'h': 128 hflag = 0; 129 break; 130 #ifdef KERBEROS 131 case 'k': 132 dokerberos = 1; 133 break; 134 #endif 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 's': 153 /* Dumpnum (skip to) for multifile dump tapes. */ 154 dumpnum = strtol(optarg, &p, 10); 155 if (*p) 156 errx(1, "illegal dump number -- %s", optarg); 157 if (dumpnum <= 0) 158 errx(1, "dump number must be greater than 0"); 159 break; 160 case 'u': 161 uflag = 1; 162 break; 163 case 'v': 164 vflag = 1; 165 break; 166 case 'y': 167 yflag = 1; 168 break; 169 default: 170 usage(); 171 } 172 argc -= optind; 173 argv += optind; 174 175 if (command == '\0') 176 errx(1, "none of i, R, r, t or x options specified"); 177 178 if (signal(SIGINT, onintr) == SIG_IGN) 179 (void) signal(SIGINT, SIG_IGN); 180 if (signal(SIGTERM, onintr) == SIG_IGN) 181 (void) signal(SIGTERM, SIG_IGN); 182 setlinebuf(stderr); 183 184 setinput(inputdev); 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 (void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n\t%s\n", 297 "restore -i [-chkmuvy] [-b blocksize] [-f file] [-s fileno]", 298 "restore -r [-ckuvy] [-b blocksize] [-f file] [-s fileno]", 299 "restore -R [-ckuvy] [-b blocksize] [-f file] [-s fileno]", 300 "restore -x [-chkmuvy] [-b blocksize] [-f file] [-s fileno] [file ...]", 301 "restore -t [-chkuvy] [-b blocksize] [-f file] [-s fileno] [file ...]"); 302 done(1); 303 } 304 305 /* 306 * obsolete -- 307 * Change set of key letters and ordered arguments into something 308 * getopt(3) will like. 309 */ 310 static void 311 obsolete(argcp, argvp) 312 int *argcp; 313 char **argvp[]; 314 { 315 int argc, flags; 316 char *ap, **argv, *flagsp, **nargv, *p; 317 318 /* Setup. */ 319 argv = *argvp; 320 argc = *argcp; 321 322 /* Return if no arguments or first argument has leading dash. */ 323 ap = argv[1]; 324 if (argc == 1 || *ap == '-') 325 return; 326 327 /* Allocate space for new arguments. */ 328 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 329 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 330 err(1, NULL); 331 332 *nargv++ = *argv; 333 argv += 2, argc -= 2; 334 335 for (flags = 0; *ap; ++ap) { 336 switch (*ap) { 337 case 'b': 338 case 'f': 339 case 's': 340 if (*argv == NULL) { 341 warnx("option requires an argument -- %c", *ap); 342 usage(); 343 } 344 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 345 err(1, NULL); 346 nargv[0][0] = '-'; 347 nargv[0][1] = *ap; 348 (void)strcpy(&nargv[0][2], *argv); 349 ++argv; 350 ++nargv; 351 break; 352 default: 353 if (!flags) { 354 *p++ = '-'; 355 flags = 1; 356 } 357 *p++ = *ap; 358 break; 359 } 360 } 361 362 /* Terminate flags. */ 363 if (flags) { 364 *p = '\0'; 365 *nargv++ = flagsp; 366 } 367 368 /* Copy remaining arguments. */ 369 while ((*nargv++ = *argv++)); 370 371 /* Update argument count. */ 372 *argcp = nargv - *argvp - 1; 373 } 374