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 8.2 (Berkeley) 1/7/94"; 42 #endif /* not lint */ 43 44 #include <sys/param.h> 45 #include <sys/time.h> 46 47 #include <ufs/ffs/fs.h> 48 #include <ufs/ufs/dinode.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 58 #include "pathnames.h" 59 #include "restore.h" 60 #include "extern.h" 61 62 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 63 int hflag = 1, mflag = 1, Nflag = 0; 64 char command = '\0'; 65 long dumpnum = 1; 66 long volno = 0; 67 long ntrec; 68 char *dumpmap; 69 char *clrimap; 70 ino_t maxino; 71 time_t dumptime; 72 time_t dumpdate; 73 FILE *terminal; 74 75 static void obsolete __P((int *, char **[])); 76 static void usage __P((void)); 77 78 int 79 main(argc, argv) 80 int argc; 81 char *argv[]; 82 { 83 int ch; 84 ino_t ino; 85 char *inputdev; 86 char *symtbl = "./restoresymtable"; 87 char *p, name[MAXPATHLEN]; 88 89 /* Temp files should *not* be readable. We set permissions later. */ 90 (void) umask(077); 91 92 if (argc < 2) 93 usage(); 94 95 if ((inputdev = getenv("TAPE")) == NULL) 96 inputdev = _PATH_DEFTAPE; 97 obsolete(&argc, &argv); 98 while ((ch = getopt(argc, argv, "b:cdf:himNRrs:tvxy")) != EOF) 99 switch(ch) { 100 case 'b': 101 /* Change default tape blocksize. */ 102 bflag = 1; 103 ntrec = strtol(optarg, &p, 10); 104 if (*p) 105 errx(1, "illegal blocksize -- %s", optarg); 106 if (ntrec <= 0) 107 errx(1, "block size must be greater than 0"); 108 break; 109 case 'c': 110 cvtflag = 1; 111 break; 112 case 'd': 113 dflag = 1; 114 break; 115 case 'f': 116 inputdev = optarg; 117 break; 118 case 'h': 119 hflag = 0; 120 break; 121 case 'i': 122 case 'R': 123 case 'r': 124 case 't': 125 case 'x': 126 if (command != '\0') 127 errx(1, 128 "%c and %c options are mutually exclusive", 129 ch, command); 130 command = ch; 131 break; 132 case 'm': 133 mflag = 0; 134 break; 135 case 'N': 136 Nflag = 1; 137 break; 138 case 's': 139 /* Dumpnum (skip to) for multifile dump tapes. */ 140 dumpnum = strtol(optarg, &p, 10); 141 if (*p) 142 errx(1, "illegal dump number -- %s", optarg); 143 if (dumpnum <= 0) 144 errx(1, "dump number must be greater than 0"); 145 break; 146 case 'v': 147 vflag = 1; 148 break; 149 case 'y': 150 yflag = 1; 151 break; 152 default: 153 usage(); 154 } 155 argc -= optind; 156 argv += optind; 157 158 if (command == '\0') 159 errx(1, "none of i, R, r, t or x options specified"); 160 161 if (signal(SIGINT, onintr) == SIG_IGN) 162 (void) signal(SIGINT, SIG_IGN); 163 if (signal(SIGTERM, onintr) == SIG_IGN) 164 (void) signal(SIGTERM, SIG_IGN); 165 setlinebuf(stderr); 166 167 setinput(inputdev); 168 169 if (argc == 0) { 170 argc = 1; 171 *--argv = "."; 172 } 173 174 switch (command) { 175 /* 176 * Interactive mode. 177 */ 178 case 'i': 179 setup(); 180 extractdirs(1); 181 initsymtable(NULL); 182 runcmdshell(); 183 break; 184 /* 185 * Incremental restoration of a file system. 186 */ 187 case 'r': 188 setup(); 189 if (dumptime > 0) { 190 /* 191 * This is an incremental dump tape. 192 */ 193 vprintf(stdout, "Begin incremental restore\n"); 194 initsymtable(symtbl); 195 extractdirs(1); 196 removeoldleaves(); 197 vprintf(stdout, "Calculate node updates.\n"); 198 treescan(".", ROOTINO, nodeupdates); 199 findunreflinks(); 200 removeoldnodes(); 201 } else { 202 /* 203 * This is a level zero dump tape. 204 */ 205 vprintf(stdout, "Begin level 0 restore\n"); 206 initsymtable((char *)0); 207 extractdirs(1); 208 vprintf(stdout, "Calculate extraction list.\n"); 209 treescan(".", ROOTINO, nodeupdates); 210 } 211 createleaves(symtbl); 212 createlinks(); 213 setdirmodes(FORCE); 214 checkrestore(); 215 if (dflag) { 216 vprintf(stdout, "Verify the directory structure\n"); 217 treescan(".", ROOTINO, verifyfile); 218 } 219 dumpsymtable(symtbl, (long)1); 220 break; 221 /* 222 * Resume an incremental file system restoration. 223 */ 224 case 'R': 225 initsymtable(symtbl); 226 skipmaps(); 227 skipdirs(); 228 createleaves(symtbl); 229 createlinks(); 230 setdirmodes(FORCE); 231 checkrestore(); 232 dumpsymtable(symtbl, (long)1); 233 break; 234 /* 235 * List contents of tape. 236 */ 237 case 't': 238 setup(); 239 extractdirs(0); 240 initsymtable((char *)0); 241 while (argc--) { 242 canon(*argv++, name, sizeof(name)); 243 ino = dirlookup(name); 244 if (ino == 0) 245 continue; 246 treescan(name, ino, listfile); 247 } 248 break; 249 /* 250 * Batch extraction of tape contents. 251 */ 252 case 'x': 253 setup(); 254 extractdirs(1); 255 initsymtable((char *)0); 256 while (argc--) { 257 canon(*argv++, name, sizeof(name)); 258 ino = dirlookup(name); 259 if (ino == 0) 260 continue; 261 if (mflag) 262 pathcheck(name); 263 treescan(name, ino, addfile); 264 } 265 createfiles(); 266 createlinks(); 267 setdirmodes(0); 268 if (dflag) 269 checkrestore(); 270 break; 271 } 272 done(0); 273 /* NOTREACHED */ 274 } 275 276 static void 277 usage() 278 { 279 (void)fprintf(stderr, "usage:\t%s%s%s%s%s", 280 "restore tfhsvy [file ...]\n", 281 "\trestore xfhmsvy [file ...]\n", 282 "\trestore ifhmsvy\n", 283 "\trestore rfsvy\n", 284 "\trestore Rfsvy\n"); 285 done(1); 286 } 287 288 /* 289 * obsolete -- 290 * Change set of key letters and ordered arguments into something 291 * getopt(3) will like. 292 */ 293 static void 294 obsolete(argcp, argvp) 295 int *argcp; 296 char **argvp[]; 297 { 298 int argc, flags; 299 char *ap, **argv, *flagsp, **nargv, *p; 300 301 /* Setup. */ 302 argv = *argvp; 303 argc = *argcp; 304 305 /* Return if no arguments or first argument has leading dash. */ 306 ap = argv[1]; 307 if (argc == 1 || *ap == '-') 308 return; 309 310 /* Allocate space for new arguments. */ 311 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 312 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 313 err(1, NULL); 314 315 *nargv++ = *argv; 316 argv += 2, argc -= 2; 317 318 for (flags = 0; *ap; ++ap) { 319 switch(*ap) { 320 case 'b': 321 case 'f': 322 case 's': 323 if (argc < 1) 324 usage(); 325 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 326 err(1, NULL); 327 nargv[0][0] = '-'; 328 nargv[0][1] = *ap; 329 (void)strcpy(&nargv[0][2], *argv); 330 if (*argv != NULL) 331 ++argv; 332 ++nargv; 333 break; 334 default: 335 if (!flags) { 336 *p++ = '-'; 337 flags = 1; 338 } 339 *p++ = *ap; 340 break; 341 } 342 } 343 344 /* Terminate flags. */ 345 if (flags) { 346 *p = '\0'; 347 *nargv++ = flagsp; 348 } 349 350 /* Copy remaining arguments. */ 351 while (*nargv++ = *argv++); 352 } 353