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(int *, char **[]); 80 static void usage(void) __dead2; 81 82 int 83 main(int argc, char *argv[]) 84 { 85 int ch; 86 ino_t ino; 87 char *inputdev; 88 char *symtbl = "./restoresymtable"; 89 char *p, name[MAXPATHLEN]; 90 91 /* Temp files should *not* be readable. We set permissions later. */ 92 (void) umask(077); 93 94 if (argc < 2) 95 usage(); 96 97 if ((inputdev = getenv("TAPE")) == NULL) 98 inputdev = _PATH_DEFTAPE; 99 obsolete(&argc, &argv); 100 #ifdef KERBEROS 101 #define optlist "b:cdf:hikmNRrs:tuvxy" 102 #else 103 #define optlist "b:cdf:himNRrs:tuvxy" 104 #endif 105 while ((ch = getopt(argc, argv, optlist)) != -1) 106 switch(ch) { 107 case 'b': 108 /* Change default tape blocksize. */ 109 bflag = 1; 110 ntrec = strtol(optarg, &p, 10); 111 if (*p) 112 errx(1, "illegal blocksize -- %s", optarg); 113 if (ntrec <= 0) 114 errx(1, "block size must be greater than 0"); 115 break; 116 case 'c': 117 cvtflag = 1; 118 break; 119 case 'd': 120 dflag = 1; 121 break; 122 case 'f': 123 inputdev = optarg; 124 break; 125 case 'h': 126 hflag = 0; 127 break; 128 #ifdef KERBEROS 129 case 'k': 130 dokerberos = 1; 131 break; 132 #endif 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 setinput(inputdev); 183 184 if (argc == 0) { 185 argc = 1; 186 *--argv = "."; 187 } 188 189 switch (command) { 190 /* 191 * Interactive mode. 192 */ 193 case 'i': 194 setup(); 195 extractdirs(1); 196 initsymtable(NULL); 197 runcmdshell(); 198 break; 199 /* 200 * Incremental restoration of a filesystem. 201 */ 202 case 'r': 203 setup(); 204 if (dumptime > 0) { 205 /* 206 * This is an incremental dump tape. 207 */ 208 vprintf(stdout, "Begin incremental restore\n"); 209 initsymtable(symtbl); 210 extractdirs(1); 211 removeoldleaves(); 212 vprintf(stdout, "Calculate node updates.\n"); 213 treescan(".", ROOTINO, nodeupdates); 214 findunreflinks(); 215 removeoldnodes(); 216 } else { 217 /* 218 * This is a level zero dump tape. 219 */ 220 vprintf(stdout, "Begin level 0 restore\n"); 221 initsymtable((char *)0); 222 extractdirs(1); 223 vprintf(stdout, "Calculate extraction list.\n"); 224 treescan(".", ROOTINO, nodeupdates); 225 } 226 createleaves(symtbl); 227 createlinks(); 228 setdirmodes(FORCE); 229 checkrestore(); 230 if (dflag) { 231 vprintf(stdout, "Verify the directory structure\n"); 232 treescan(".", ROOTINO, verifyfile); 233 } 234 dumpsymtable(symtbl, (long)1); 235 break; 236 /* 237 * Resume an incremental filesystem restoration. 238 */ 239 case 'R': 240 initsymtable(symtbl); 241 skipmaps(); 242 skipdirs(); 243 createleaves(symtbl); 244 createlinks(); 245 setdirmodes(FORCE); 246 checkrestore(); 247 dumpsymtable(symtbl, (long)1); 248 break; 249 /* 250 * List contents of tape. 251 */ 252 case 't': 253 setup(); 254 extractdirs(0); 255 initsymtable((char *)0); 256 while (argc--) { 257 canon(*argv++, name, sizeof(name)); 258 ino = dirlookup(name); 259 if (ino == 0) 260 continue; 261 treescan(name, ino, listfile); 262 } 263 break; 264 /* 265 * Batch extraction of tape contents. 266 */ 267 case 'x': 268 setup(); 269 extractdirs(1); 270 initsymtable((char *)0); 271 while (argc--) { 272 canon(*argv++, name, sizeof(name)); 273 ino = dirlookup(name); 274 if (ino == 0) 275 continue; 276 if (mflag) 277 pathcheck(name); 278 treescan(name, ino, addfile); 279 } 280 createfiles(); 281 createlinks(); 282 setdirmodes(0); 283 if (dflag) 284 checkrestore(); 285 break; 286 } 287 done(0); 288 /* NOTREACHED */ 289 } 290 291 static void 292 usage() 293 { 294 (void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n\t%s\n", 295 "restore -i [-cdhkmNuvy] [-b blocksize] [-f file] [-s fileno]", 296 "restore -r [-cdkNuvy] [-b blocksize] [-f file] [-s fileno]", 297 "restore -R [-cdkNuvy] [-b blocksize] [-f file] [-s fileno]", 298 "restore -x [-cdhkmNuvy] [-b blocksize] [-f file] [-s fileno] [file ...]", 299 "restore -t [-cdhkNuvy] [-b blocksize] [-f file] [-s fileno] [file ...]"); 300 done(1); 301 } 302 303 /* 304 * obsolete -- 305 * Change set of key letters and ordered arguments into something 306 * getopt(3) will like. 307 */ 308 static void 309 obsolete(int *argcp, char **argvp[]) 310 { 311 int argc, flags; 312 char *ap, **argv, *flagsp, **nargv, *p; 313 314 /* Setup. */ 315 argv = *argvp; 316 argc = *argcp; 317 318 /* Return if no arguments or first argument has leading dash. */ 319 ap = argv[1]; 320 if (argc == 1 || *ap == '-') 321 return; 322 323 /* Allocate space for new arguments. */ 324 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 325 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 326 err(1, NULL); 327 328 *nargv++ = *argv; 329 argv += 2, argc -= 2; 330 331 for (flags = 0; *ap; ++ap) { 332 switch (*ap) { 333 case 'b': 334 case 'f': 335 case 's': 336 if (*argv == NULL) { 337 warnx("option requires an argument -- %c", *ap); 338 usage(); 339 } 340 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 341 err(1, NULL); 342 nargv[0][0] = '-'; 343 nargv[0][1] = *ap; 344 (void)strcpy(&nargv[0][2], *argv); 345 ++argv; 346 ++nargv; 347 break; 348 default: 349 if (!flags) { 350 *p++ = '-'; 351 flags = 1; 352 } 353 *p++ = *ap; 354 break; 355 } 356 } 357 358 /* Terminate flags. */ 359 if (flags) { 360 *p = '\0'; 361 *nargv++ = flagsp; 362 } 363 364 /* Copy remaining arguments. */ 365 while ((*nargv++ = *argv++)); 366 367 /* Update argument count. */ 368 *argcp = nargv - *argvp - 1; 369 } 370