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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#) Copyright (c) 1983, 1993 The Regents of the University of California. All rights reserved. 30 * @(#)main.c 8.6 (Berkeley) 5/4/95 31 * $FreeBSD: src/sbin/restore/main.c,v 1.10.2.3 2001/10/02 08:30:17 cjc Exp $ 32 */ 33 34 #include <sys/param.h> 35 #include <sys/stat.h> 36 37 #include <vfs/ufs/dinode.h> 38 #include <protocols/dumprestore.h> 39 40 #include <err.h> 41 #include <paths.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 47 #include "restore.h" 48 #include "extern.h" 49 50 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 51 int hflag = 1, mflag = 1, Nflag = 0; 52 int uflag = 0; 53 int dokerberos = 0; 54 char command = '\0'; 55 long dumpnum = 1; 56 long volno = 0; 57 long ntrec; 58 char *dumpmap; 59 char *usedinomap; 60 ufs1_ino_t maxino; 61 time_t dumptime; 62 time_t dumpdate; 63 FILE *terminal; 64 65 static void obsolete(int *, char **[]); 66 static void usage(void); 67 68 int 69 main(int argc, char *argv[]) 70 { 71 int ch; 72 ufs1_ino_t ino; 73 char *inputdev; 74 const char *symtbl = "./restoresymtable"; 75 char *p, name[MAXPATHLEN]; 76 77 /* Temp files should *not* be readable. We set permissions later. */ 78 umask(077); 79 80 if (argc < 2) 81 usage(); 82 83 if ((inputdev = getenv("TAPE")) == NULL) 84 inputdev = __DECONST(char *, _PATH_DEFTAPE); 85 obsolete(&argc, &argv); 86 #ifdef KERBEROS 87 #define optlist "b:cdf:hikmNRrs:tuvxy" 88 #else 89 #define optlist "b:cdf:himNRrs:tuvxy" 90 #endif 91 while ((ch = getopt(argc, argv, optlist)) != -1) 92 switch(ch) { 93 case 'b': 94 /* Change default tape blocksize. */ 95 bflag = 1; 96 ntrec = strtol(optarg, &p, 10); 97 if (*p) 98 errx(1, "illegal blocksize -- %s", optarg); 99 if (ntrec <= 0) 100 errx(1, "block size must be greater than 0"); 101 break; 102 case 'c': 103 cvtflag = 1; 104 break; 105 case 'd': 106 dflag = 1; 107 break; 108 case 'f': 109 inputdev = optarg; 110 break; 111 case 'h': 112 hflag = 0; 113 break; 114 #ifdef KERBEROS 115 case 'k': 116 dokerberos = 1; 117 break; 118 #endif 119 case 'i': 120 case 'R': 121 case 'r': 122 case 't': 123 case 'x': 124 if (command != '\0') 125 errx(1, 126 "%c and %c options are mutually exclusive", 127 ch, command); 128 command = ch; 129 break; 130 case 'm': 131 mflag = 0; 132 break; 133 case 'N': 134 Nflag = 1; 135 break; 136 case 's': 137 /* Dumpnum (skip to) for multifile dump tapes. */ 138 dumpnum = strtol(optarg, &p, 10); 139 if (*p) 140 errx(1, "illegal dump number -- %s", optarg); 141 if (dumpnum <= 0) 142 errx(1, "dump number must be greater than 0"); 143 break; 144 case 'u': 145 uflag = 1; 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 signal(SIGINT, SIG_IGN); 164 if (signal(SIGTERM, onintr) == SIG_IGN) 165 signal(SIGTERM, SIG_IGN); 166 setlinebuf(stderr); 167 168 setinput(inputdev); 169 170 if (argc == 0) { 171 argc = 1; 172 *--argv = __DECONST(char *, "."); 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(__DECONST(char *, "."), UFS_ROOTINO, 200 nodeupdates); 201 findunreflinks(); 202 removeoldnodes(); 203 } else { 204 /* 205 * This is a level zero dump tape. 206 */ 207 vprintf(stdout, "Begin level 0 restore\n"); 208 initsymtable(NULL); 209 extractdirs(1); 210 vprintf(stdout, "Calculate extraction list.\n"); 211 treescan(__DECONST(char *, "."), UFS_ROOTINO, 212 nodeupdates); 213 } 214 createleaves(symtbl); 215 createlinks(); 216 setdirmodes(FORCE); 217 checkrestore(); 218 if (dflag) { 219 vprintf(stdout, "Verify the directory structure\n"); 220 treescan(__DECONST(char *, "."), UFS_ROOTINO, 221 verifyfile); 222 } 223 dumpsymtable(symtbl, (long)1); 224 break; 225 /* 226 * Resume an incremental file system restoration. 227 */ 228 case 'R': 229 initsymtable(symtbl); 230 skipmaps(); 231 skipdirs(); 232 createleaves(symtbl); 233 createlinks(); 234 setdirmodes(FORCE); 235 checkrestore(); 236 dumpsymtable(symtbl, (long)1); 237 break; 238 /* 239 * List contents of tape. 240 */ 241 case 't': 242 setup(); 243 extractdirs(0); 244 initsymtable(NULL); 245 while (argc--) { 246 canon(*argv++, name, sizeof(name)); 247 ino = dirlookup(name); 248 if (ino == 0) 249 continue; 250 treescan(name, ino, listfile); 251 } 252 break; 253 /* 254 * Batch extraction of tape contents. 255 */ 256 case 'x': 257 setup(); 258 extractdirs(1); 259 initsymtable(NULL); 260 while (argc--) { 261 canon(*argv++, name, sizeof(name)); 262 ino = dirlookup(name); 263 if (ino == 0) 264 continue; 265 if (mflag) 266 pathcheck(name); 267 treescan(name, ino, addfile); 268 } 269 createfiles(); 270 createlinks(); 271 setdirmodes(0); 272 if (dflag) 273 checkrestore(); 274 break; 275 } 276 done(0); 277 /* NOTREACHED */ 278 } 279 280 static void 281 usage(void) 282 { 283 fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n\t%s\n", 284 "restore -i [-cdhkmNuvy] [-b blocksize] [-f file] [-s fileno]", 285 "restore -r [-cdkNuvy] [-b blocksize] [-f file] [-s fileno]", 286 "restore -R [-cdkNuvy] [-b blocksize] [-f file] [-s fileno]", 287 "restore -x [-cdhkmNuvy] [-b blocksize] [-f file] [-s fileno] [file ...]", 288 "restore -t [-cdhkNuvy] [-b blocksize] [-f file] [-s fileno] [file ...]"); 289 done(1); 290 } 291 292 /* 293 * obsolete -- 294 * Change set of key letters and ordered arguments into something 295 * getopt(3) will like. 296 */ 297 static void 298 obsolete(int *argcp, char **argvp[]) 299 { 300 int argc, flags; 301 char *ap, **argv, *flagsp, **nargv, *p; 302 303 /* Setup. */ 304 argv = *argvp; 305 argc = *argcp; 306 307 /* Return if no arguments or first argument has leading dash. */ 308 ap = argv[1]; 309 if (argc == 1 || *ap == '-') 310 return; 311 312 /* Allocate space for new arguments. */ 313 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 314 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 315 err(1, NULL); 316 317 *nargv++ = *argv; 318 argv += 2, argc -= 2; 319 320 for (flags = 0; *ap; ++ap) { 321 switch (*ap) { 322 case 'b': 323 case 'f': 324 case 's': 325 if (*argv == NULL) { 326 warnx("option requires an argument -- %c", *ap); 327 usage(); 328 } 329 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 330 err(1, NULL); 331 nargv[0][0] = '-'; 332 nargv[0][1] = *ap; 333 strcpy(&nargv[0][2], *argv); 334 ++argv; 335 ++nargv; 336 break; 337 default: 338 if (!flags) { 339 *p++ = '-'; 340 flags = 1; 341 } 342 *p++ = *ap; 343 break; 344 } 345 } 346 347 /* Terminate flags. */ 348 if (flags) { 349 *p = '\0'; 350 *nargv++ = flagsp; 351 } 352 353 /* Copy remaining arguments. */ 354 while ((*nargv++ = *argv++)); 355 356 /* Update argument count. */ 357 *argcp = nargv - *argvp - 1; 358 } 359