1 /* $OpenBSD: main.c,v 1.10 2001/06/04 14:59:49 mickey Exp $ */ 2 /* $NetBSD: main.c,v 1.13 1997/07/01 05:37:51 lukem Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 static char copyright[] = 39 "@(#) Copyright (c) 1983, 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41 #endif /* not lint */ 42 43 #ifndef lint 44 #if 0 45 static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 9/13/94"; 46 #else 47 static char rcsid[] = "$NetBSD: main.c,v 1.11 1996/03/15 22:39:39 scottr Exp $"; 48 #endif 49 #endif /* not lint */ 50 51 #include <sys/param.h> 52 #include <sys/stat.h> 53 #include <sys/time.h> 54 55 #include <ufs/ffs/fs.h> 56 #include <ufs/ufs/dinode.h> 57 #include <protocols/dumprestore.h> 58 59 #include <err.h> 60 #include <paths.h> 61 #include <signal.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 66 #include "restore.h" 67 #include "extern.h" 68 69 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 70 int hflag = 1, mflag = 1, Nflag = 0; 71 char command = '\0'; 72 long dumpnum = 1; 73 long volno = 0; 74 long ntrec; 75 char *dumpmap; 76 char *usedinomap; 77 ino_t maxino; 78 time_t dumptime; 79 time_t dumpdate; 80 FILE *terminal; 81 char *tmpdir; 82 83 static void obsolete __P((int *, char **[])); 84 static void usage __P((void)); 85 86 int 87 main(argc, argv) 88 int argc; 89 char *argv[]; 90 { 91 int ch; 92 ino_t ino; 93 char *inputdev; 94 char *symtbl = "./restoresymtable"; 95 char *p, name[MAXPATHLEN]; 96 97 /* Temp files should *not* be readable. We set permissions later. */ 98 (void)umask(077); 99 100 if (argc < 2) 101 usage(); 102 103 if ((inputdev = getenv("TAPE")) == NULL) 104 inputdev = _PATH_DEFTAPE; 105 if ((tmpdir = getenv("TMPDIR")) == NULL) 106 tmpdir = _PATH_TMP; 107 if ((tmpdir = strdup(tmpdir)) == NULL) 108 err(1, NULL); 109 for (p = tmpdir + strlen(tmpdir) - 1; p >= tmpdir && *p == '/'; p--) 110 ; 111 obsolete(&argc, &argv); 112 while ((ch = getopt(argc, argv, "b:cdf:himNRrs:tvxy")) != -1) 113 switch(ch) { 114 case 'b': 115 /* Change default tape blocksize. */ 116 bflag = 1; 117 ntrec = strtol(optarg, &p, 10); 118 if (*p) 119 errx(1, "illegal blocksize -- %s", optarg); 120 if (ntrec <= 0) 121 errx(1, "block size must be greater than 0"); 122 break; 123 case 'c': 124 cvtflag = 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 '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 'v': 161 vflag = 1; 162 break; 163 case 'y': 164 yflag = 1; 165 break; 166 default: 167 usage(); 168 } 169 argc -= optind; 170 argv += optind; 171 172 if (command == '\0') 173 errx(1, "none of i, R, r, t or x options specified"); 174 175 if (signal(SIGINT, onintr) == SIG_IGN) 176 (void)signal(SIGINT, SIG_IGN); 177 if (signal(SIGTERM, onintr) == SIG_IGN) 178 (void)signal(SIGTERM, SIG_IGN); 179 setlinebuf(stderr); 180 181 atexit(cleanup); 182 183 setinput(inputdev); 184 185 if (argc == 0) { 186 argc = 1; 187 *--argv = "."; 188 } 189 190 switch (command) { 191 /* 192 * Interactive mode. 193 */ 194 case 'i': 195 setup(); 196 extractdirs(1); 197 initsymtable(NULL); 198 runcmdshell(); 199 break; 200 /* 201 * Incremental restoration of a file system. 202 */ 203 case 'r': 204 setup(); 205 if (dumptime > 0) { 206 /* 207 * This is an incremental dump tape. 208 */ 209 Vprintf(stdout, "Begin incremental restore\n"); 210 initsymtable(symtbl); 211 extractdirs(1); 212 removeoldleaves(); 213 Vprintf(stdout, "Calculate node updates.\n"); 214 treescan(".", ROOTINO, nodeupdates); 215 findunreflinks(); 216 removeoldnodes(); 217 } else { 218 /* 219 * This is a level zero dump tape. 220 */ 221 Vprintf(stdout, "Begin level 0 restore\n"); 222 initsymtable(NULL); 223 extractdirs(1); 224 Vprintf(stdout, "Calculate extraction list.\n"); 225 treescan(".", ROOTINO, nodeupdates); 226 } 227 createleaves(symtbl); 228 createlinks(); 229 setdirmodes(FORCE); 230 checkrestore(); 231 if (dflag) { 232 Vprintf(stdout, "Verify the directory structure\n"); 233 treescan(".", ROOTINO, verifyfile); 234 } 235 dumpsymtable(symtbl, (long)1); 236 break; 237 /* 238 * Resume an incremental file system restoration. 239 */ 240 case 'R': 241 initsymtable(symtbl); 242 skipmaps(); 243 skipdirs(); 244 createleaves(symtbl); 245 createlinks(); 246 setdirmodes(FORCE); 247 checkrestore(); 248 dumpsymtable(symtbl, (long)1); 249 break; 250 /* 251 * List contents of tape. 252 */ 253 case 't': 254 setup(); 255 extractdirs(0); 256 initsymtable(NULL); 257 while (argc--) { 258 canon(*argv++, name); 259 ino = dirlookup(name); 260 if (ino == 0) 261 continue; 262 treescan(name, ino, listfile); 263 } 264 break; 265 /* 266 * Batch extraction of tape contents. 267 */ 268 case 'x': 269 setup(); 270 extractdirs(1); 271 initsymtable(NULL); 272 while (argc--) { 273 canon(*argv++, name); 274 ino = dirlookup(name); 275 if (ino == 0) 276 continue; 277 if (mflag) 278 pathcheck(name); 279 treescan(name, ino, addfile); 280 } 281 createfiles(); 282 createlinks(); 283 setdirmodes(0); 284 if (dflag) 285 checkrestore(); 286 break; 287 } 288 return (0); 289 } 290 291 static void 292 usage() 293 { 294 295 (void)fprintf(stderr, "usage: %s -i [-chmvy] [-b blocksize] [-f file] [-s fileno]\n", __progname); 296 (void)fprintf(stderr, " %s -R [-cvy] [-b blocksize] [-f file] [-s fileno]\n", __progname); 297 (void)fprintf(stderr, " %s -r [-cvy] [-b blocksize] [-f file] [-s fileno]\n", __progname); 298 (void)fprintf(stderr, " %s -t [-chvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n", __progname); 299 (void)fprintf(stderr, " %s -x [-chmvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n", __progname); 300 exit(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(argcp, argvp) 310 int *argcp; 311 char **argvp[]; 312 { 313 int argc, flags; 314 char *ap, **argv, *flagsp, **nargv, *p; 315 316 /* Setup. */ 317 argv = *argvp; 318 argc = *argcp; 319 320 /* Return if no arguments or first argument has leading dash. */ 321 ap = argv[1]; 322 if (argc == 1 || *ap == '-') 323 return; 324 325 /* Allocate space for new arguments. */ 326 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 327 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 328 err(1, NULL); 329 330 *nargv++ = *argv; 331 argv += 2; 332 333 for (flags = 0; *ap; ++ap) { 334 switch (*ap) { 335 case 'b': 336 case 'f': 337 case 's': 338 if (*argv == NULL) { 339 warnx("option requires an argument -- %c", *ap); 340 usage(); 341 } 342 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 343 err(1, NULL); 344 nargv[0][0] = '-'; 345 nargv[0][1] = *ap; 346 (void)strcpy(&nargv[0][2], *argv); 347 ++argv; 348 ++nargv; 349 break; 350 default: 351 if (!flags) { 352 *p++ = '-'; 353 flags = 1; 354 } 355 *p++ = *ap; 356 break; 357 } 358 } 359 360 /* Terminate flags. */ 361 if (flags) { 362 *p = '\0'; 363 *nargv++ = flagsp; 364 } 365 366 /* Copy remaining arguments. */ 367 while ((*nargv++ = *argv++)) 368 ; 369 370 /* Update argument count. */ 371 *argcp = nargv - *argvp - 1; 372 } 373