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 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 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/4/95"; 42 #endif /* not lint */ 43 44 #include <sys/param.h> 45 #include <sys/time.h> 46 47 #include <ufs/ufs/dinode.h> 48 #include <ufs/ffs/fs.h> 49 #include <protocols/dumprestore.h> 50 51 #include <err.h> 52 #include <errno.h> 53 #include <signal.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <unistd.h> 58 59 #include "pathnames.h" 60 #include "restore.h" 61 #include "extern.h" 62 63 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 64 int hflag = 1, mflag = 1, Nflag = 0; 65 char command = '\0'; 66 long dumpnum = 1; 67 long volno = 0; 68 long ntrec; 69 char *dumpmap; 70 char *usedinomap; 71 ino_t maxino; 72 time_t dumptime; 73 time_t dumpdate; 74 FILE *terminal; 75 76 static void obsolete __P((int *, char **[])); 77 static void usage __P((void)); 78 79 int 80 main(argc, argv) 81 int argc; 82 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 if ((inputdev = getenv("TAPE")) == NULL) 97 inputdev = _PATH_DEFTAPE; 98 obsolete(&argc, &argv); 99 while ((ch = getopt(argc, argv, "b:cdf:himNRrs:tvxy")) != EOF) 100 switch(ch) { 101 case 'b': 102 /* Change default tape blocksize. */ 103 bflag = 1; 104 ntrec = strtol(optarg, &p, 10); 105 if (*p) 106 errx(1, "illegal blocksize -- %s", optarg); 107 if (ntrec <= 0) 108 errx(1, "block size must be greater than 0"); 109 break; 110 case 'c': 111 cvtflag = 1; 112 break; 113 case 'd': 114 dflag = 1; 115 break; 116 case 'f': 117 inputdev = optarg; 118 break; 119 case 'h': 120 hflag = 0; 121 break; 122 case 'i': 123 case 'R': 124 case 'r': 125 case 't': 126 case 'x': 127 if (command != '\0') 128 errx(1, 129 "%c and %c options are mutually exclusive", 130 ch, command); 131 command = ch; 132 break; 133 case 'm': 134 mflag = 0; 135 break; 136 case 'N': 137 Nflag = 1; 138 break; 139 case 's': 140 /* Dumpnum (skip to) for multifile dump tapes. */ 141 dumpnum = strtol(optarg, &p, 10); 142 if (*p) 143 errx(1, "illegal dump number -- %s", optarg); 144 if (dumpnum <= 0) 145 errx(1, "dump number must be greater than 0"); 146 break; 147 case 'v': 148 vflag = 1; 149 break; 150 case 'y': 151 yflag = 1; 152 break; 153 default: 154 usage(); 155 } 156 argc -= optind; 157 argv += optind; 158 159 if (command == '\0') 160 errx(1, "none of i, R, r, t or x options specified"); 161 162 if (signal(SIGINT, onintr) == SIG_IGN) 163 (void) signal(SIGINT, SIG_IGN); 164 if (signal(SIGTERM, onintr) == SIG_IGN) 165 (void) signal(SIGTERM, SIG_IGN); 166 setlinebuf(stderr); 167 168 setinput(inputdev); 169 170 if (argc == 0) { 171 argc = 1; 172 *--argv = "."; 173 } 174 175 switch (command) { 176 /* 177 * Interactive mode. 178 */ 179 case 'i': 180 setup(); 181 extractdirs(1); 182 initsymtable(NULL); 183 runcmdshell(); 184 break; 185 /* 186 * Incremental restoration of a file system. 187 */ 188 case 'r': 189 setup(); 190 if (dumptime > 0) { 191 /* 192 * This is an incremental dump tape. 193 */ 194 vprintf(stdout, "Begin incremental restore\n"); 195 initsymtable(symtbl); 196 extractdirs(1); 197 removeoldleaves(); 198 vprintf(stdout, "Calculate node updates.\n"); 199 treescan(".", ROOTINO, nodeupdates); 200 findunreflinks(); 201 removeoldnodes(); 202 } else { 203 /* 204 * This is a level zero dump tape. 205 */ 206 vprintf(stdout, "Begin level 0 restore\n"); 207 initsymtable((char *)0); 208 extractdirs(1); 209 vprintf(stdout, "Calculate extraction list.\n"); 210 treescan(".", ROOTINO, nodeupdates); 211 } 212 createleaves(symtbl); 213 createlinks(); 214 setdirmodes(FORCE); 215 checkrestore(); 216 if (dflag) { 217 vprintf(stdout, "Verify the directory structure\n"); 218 treescan(".", ROOTINO, verifyfile); 219 } 220 dumpsymtable(symtbl, (long)1); 221 break; 222 /* 223 * Resume an incremental file system restoration. 224 */ 225 case 'R': 226 initsymtable(symtbl); 227 skipmaps(); 228 skipdirs(); 229 createleaves(symtbl); 230 createlinks(); 231 setdirmodes(FORCE); 232 checkrestore(); 233 dumpsymtable(symtbl, (long)1); 234 break; 235 /* 236 * List contents of tape. 237 */ 238 case 't': 239 setup(); 240 extractdirs(0); 241 initsymtable((char *)0); 242 while (argc--) { 243 canon(*argv++, name, sizeof(name)); 244 ino = dirlookup(name); 245 if (ino == 0) 246 continue; 247 treescan(name, ino, listfile); 248 } 249 break; 250 /* 251 * Batch extraction of tape contents. 252 */ 253 case 'x': 254 setup(); 255 extractdirs(1); 256 initsymtable((char *)0); 257 while (argc--) { 258 canon(*argv++, name, sizeof(name)); 259 ino = dirlookup(name); 260 if (ino == 0) 261 continue; 262 if (mflag) 263 pathcheck(name); 264 treescan(name, ino, addfile); 265 } 266 createfiles(); 267 createlinks(); 268 setdirmodes(0); 269 if (dflag) 270 checkrestore(); 271 break; 272 } 273 done(0); 274 /* NOTREACHED */ 275 } 276 277 static void 278 usage() 279 { 280 (void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n\t%s\n", 281 "restore -i [-chmvy] [-b blocksize] [-f file] [-s fileno]", 282 "restore -r [-cvy] [-b blocksize] [-f file] [-s fileno]", 283 "restore -R [-cvy] [-b blocksize] [-f file] [-s fileno]", 284 "restore -x [-chmvy] [-b blocksize] [-f file] [-s fileno] [file ...]", 285 "restore -t [-chvy] [-b blocksize] [-f file] [-s fileno] [file ...]"); 286 done(1); 287 } 288 289 /* 290 * obsolete -- 291 * Change set of key letters and ordered arguments into something 292 * getopt(3) will like. 293 */ 294 static void 295 obsolete(argcp, argvp) 296 int *argcp; 297 char **argvp[]; 298 { 299 int argc, flags; 300 char *ap, **argv, *flagsp, **nargv, *p; 301 302 /* Setup. */ 303 argv = *argvp; 304 argc = *argcp; 305 306 /* Return if no arguments or first argument has leading dash. */ 307 ap = argv[1]; 308 if (argc == 1 || *ap == '-') 309 return; 310 311 /* Allocate space for new arguments. */ 312 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 313 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 314 err(1, NULL); 315 316 *nargv++ = *argv; 317 argv += 2, argc -= 2; 318 319 for (flags = 0; *ap; ++ap) { 320 switch (*ap) { 321 case 'b': 322 case 'f': 323 case 's': 324 if (*argv == NULL) { 325 warnx("option requires an argument -- %c", *ap); 326 usage(); 327 } 328 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 329 err(1, NULL); 330 nargv[0][0] = '-'; 331 nargv[0][1] = *ap; 332 (void)strcpy(&nargv[0][2], *argv); 333 ++argv; 334 ++nargv; 335 break; 336 default: 337 if (!flags) { 338 *p++ = '-'; 339 flags = 1; 340 } 341 *p++ = *ap; 342 break; 343 } 344 } 345 346 /* Terminate flags. */ 347 if (flags) { 348 *p = '\0'; 349 *nargv++ = flagsp; 350 } 351 352 /* Copy remaining arguments. */ 353 while (*nargv++ = *argv++); 354 355 /* Update argument count. */ 356 *argcp = nargv - *argvp - 1; 357 } 358