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 <limits.h> 56 #include <paths.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, Nflag = 0; 67 int uflag = 0; 68 int dokerberos = 0; 69 char command = '\0'; 70 long dumpnum = 1; 71 long volno = 0; 72 long ntrec; 73 char *dumpmap; 74 char *usedinomap; 75 ino_t maxino; 76 time_t dumptime; 77 time_t dumpdate; 78 FILE *terminal; 79 80 static void obsolete(int *, char **[]); 81 static void usage(void) __dead2; 82 83 int 84 main(int argc, char *argv[]) 85 { 86 int ch; 87 ino_t ino; 88 char *inputdev; 89 char *symtbl = "./restoresymtable"; 90 char *p, name[MAXPATHLEN]; 91 92 /* Temp files should *not* be readable. We set permissions later. */ 93 (void) umask(077); 94 95 if (argc < 2) 96 usage(); 97 98 if ((inputdev = getenv("TAPE")) == NULL) 99 inputdev = _PATH_DEFTAPE; 100 obsolete(&argc, &argv); 101 #ifdef KERBEROS 102 #define optlist "b:df:hikmNRrs:tuvxy" 103 #else 104 #define optlist "b:df:himNRrs:tuvxy" 105 #endif 106 while ((ch = getopt(argc, argv, optlist)) != -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 'd': 118 dflag = 1; 119 break; 120 case 'f': 121 inputdev = optarg; 122 break; 123 case 'h': 124 hflag = 0; 125 break; 126 #ifdef KERBEROS 127 case 'k': 128 dokerberos = 1; 129 break; 130 #endif 131 case 'i': 132 case 'R': 133 case 'r': 134 case 't': 135 case 'x': 136 if (command != '\0') 137 errx(1, 138 "%c and %c options are mutually exclusive", 139 ch, command); 140 command = ch; 141 break; 142 case 'm': 143 mflag = 0; 144 break; 145 case 'N': 146 Nflag = 1; 147 break; 148 case 's': 149 /* Dumpnum (skip to) for multifile dump tapes. */ 150 dumpnum = strtol(optarg, &p, 10); 151 if (*p) 152 errx(1, "illegal dump number -- %s", optarg); 153 if (dumpnum <= 0) 154 errx(1, "dump number must be greater than 0"); 155 break; 156 case 'u': 157 uflag = 1; 158 break; 159 case 'v': 160 vflag = 1; 161 break; 162 case 'y': 163 yflag = 1; 164 break; 165 default: 166 usage(); 167 } 168 argc -= optind; 169 argv += optind; 170 171 if (command == '\0') 172 errx(1, "none of i, R, r, t or x options specified"); 173 174 if (signal(SIGINT, onintr) == SIG_IGN) 175 (void) signal(SIGINT, SIG_IGN); 176 if (signal(SIGTERM, onintr) == SIG_IGN) 177 (void) signal(SIGTERM, SIG_IGN); 178 setlinebuf(stderr); 179 180 setinput(inputdev); 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 (void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n\t%s\n", 293 "restore -i [-cdhkmNuvy] [-b blocksize] [-f file] [-s fileno]", 294 "restore -r [-cdkNuvy] [-b blocksize] [-f file] [-s fileno]", 295 "restore -R [-cdkNuvy] [-b blocksize] [-f file] [-s fileno]", 296 "restore -x [-cdhkmNuvy] [-b blocksize] [-f file] [-s fileno] [file ...]", 297 "restore -t [-cdhkNuvy] [-b blocksize] [-f file] [-s fileno] [file ...]"); 298 done(1); 299 } 300 301 /* 302 * obsolete -- 303 * Change set of key letters and ordered arguments into something 304 * getopt(3) will like. 305 */ 306 static void 307 obsolete(int *argcp, char **argvp[]) 308 { 309 int argc, flags; 310 char *ap, **argv, *flagsp, **nargv, *p; 311 312 /* Setup. */ 313 argv = *argvp; 314 argc = *argcp; 315 316 /* Return if no arguments or first argument has leading dash. */ 317 ap = argv[1]; 318 if (argc == 1 || *ap == '-') 319 return; 320 321 /* Allocate space for new arguments. */ 322 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 323 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 324 err(1, NULL); 325 326 *nargv++ = *argv; 327 argv += 2, argc -= 2; 328 329 for (flags = 0; *ap; ++ap) { 330 switch (*ap) { 331 case 'b': 332 case 'f': 333 case 's': 334 if (*argv == NULL) { 335 warnx("option requires an argument -- %c", *ap); 336 usage(); 337 } 338 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 339 err(1, NULL); 340 nargv[0][0] = '-'; 341 nargv[0][1] = *ap; 342 (void)strcpy(&nargv[0][2], *argv); 343 ++argv; 344 ++nargv; 345 break; 346 default: 347 if (!flags) { 348 *p++ = '-'; 349 flags = 1; 350 } 351 *p++ = *ap; 352 break; 353 } 354 } 355 356 /* Terminate flags. */ 357 if (flags) { 358 *p = '\0'; 359 *nargv++ = flagsp; 360 } 361 362 /* Copy remaining arguments. */ 363 while ((*nargv++ = *argv++)); 364 365 /* Update argument count. */ 366 *argcp = nargv - *argvp - 1; 367 } 368