main.c revision 1.24
1 /* $NetBSD: main.c,v 1.24 2004/07/27 02:17:06 enami Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/4/95"; 41 #else 42 __RCSID("$NetBSD: main.c,v 1.24 2004/07/27 02:17:06 enami Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/time.h> 48 49 #include <ufs/ufs/dinode.h> 50 #include <ufs/ffs/fs.h> 51 #include <protocols/dumprestore.h> 52 53 #include <err.h> 54 #include <errno.h> 55 #include <paths.h> 56 #include <signal.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, Dflag = 0, Nflag = 0; 67 char command = '\0'; 68 int32_t dumpnum = 1; 69 int32_t volno = 0; 70 int32_t ntrec; 71 char *dumpmap; 72 char *usedinomap; 73 ino_t maxino; 74 time_t dumptime; 75 time_t dumpdate; 76 size_t pagesize; 77 FILE *terminal; 78 char *tmpdir; 79 80 int main __P((int, char *[])); 81 static void obsolete __P((int *, char **[])); 82 static void usage __P((void)); 83 84 int 85 main(argc, argv) 86 int argc; 87 char *argv[]; 88 { 89 int ch; 90 ino_t ino; 91 char *inputdev; 92 char *symtbl = "./restoresymtable"; 93 char *p, name[MAXPATHLEN]; 94 95 if (argc < 2) 96 usage(); 97 98 if ((inputdev = getenv("TAPE")) == NULL) 99 inputdev = _PATH_DEFTAPE; 100 if ((tmpdir = getenv("TMPDIR")) == NULL) 101 tmpdir = _PATH_TMP; 102 obsolete(&argc, &argv); 103 while ((ch = getopt(argc, argv, "b:cD:df:himNRrs:tuvxy")) != -1) 104 switch(ch) { 105 case 'b': 106 /* Change default tape blocksize. */ 107 bflag = 1; 108 ntrec = strtol(optarg, &p, 10); 109 if (*p) 110 errx(1, "illegal blocksize -- %s", optarg); 111 if (ntrec <= 0) 112 errx(1, "block size must be greater than 0"); 113 break; 114 case 'c': 115 cvtflag = 1; 116 break; 117 case 'D': 118 ddesc = digest_lookup(optarg); 119 if (ddesc == NULL) 120 err(1, "unknown digest algorithm: %s", optarg); 121 Dflag = 1; 122 break; 123 case 'd': 124 dflag = 1; 125 break; 126 case 'f': 127 inputdev = optarg; 128 break; 129 case 'h': 130 hflag = 0; 131 break; 132 case 'i': 133 case 'R': 134 case 'r': 135 case 't': 136 case 'x': 137 if (command != '\0') 138 errx(1, 139 "%c and %c options are mutually exclusive", 140 ch, command); 141 command = ch; 142 break; 143 case 'm': 144 mflag = 0; 145 break; 146 case 'N': 147 Nflag = 1; 148 break; 149 case 's': 150 /* Dumpnum (skip to) for multifile dump tapes. */ 151 dumpnum = strtol(optarg, &p, 10); 152 if (*p) 153 errx(1, "illegal dump number -- %s", optarg); 154 if (dumpnum <= 0) 155 errx(1, "dump number must be greater than 0"); 156 break; 157 case 'u': 158 uflag = 1; 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 (Nflag || command == 't') 176 uflag = 0; 177 178 if (signal(SIGINT, onintr) == SIG_IGN) 179 (void) signal(SIGINT, SIG_IGN); 180 if (signal(SIGTERM, onintr) == SIG_IGN) 181 (void) signal(SIGTERM, SIG_IGN); 182 setlinebuf(stderr); 183 pagesize = sysconf(_SC_PAGESIZE); 184 185 atexit(cleanup); 186 187 setinput(inputdev); 188 189 if (argc == 0) { 190 argc = 1; 191 *--argv = "."; 192 } 193 194 switch (command) { 195 /* 196 * Interactive mode. 197 */ 198 case 'i': 199 setup(); 200 extractdirs(1); 201 initsymtable(NULL); 202 runcmdshell(); 203 break; 204 /* 205 * Incremental restoration of a file system. 206 */ 207 case 'r': 208 setup(); 209 if (dumptime > 0) { 210 /* 211 * This is an incremental dump tape. 212 */ 213 vprintf(stdout, "Begin incremental restore\n"); 214 initsymtable(symtbl); 215 extractdirs(1); 216 removeoldleaves(); 217 vprintf(stdout, "Calculate node updates.\n"); 218 treescan(".", ROOTINO, nodeupdates); 219 findunreflinks(); 220 removeoldnodes(); 221 } else { 222 /* 223 * This is a level zero dump tape. 224 */ 225 vprintf(stdout, "Begin level 0 restore\n"); 226 initsymtable((char *)0); 227 extractdirs(1); 228 vprintf(stdout, "Calculate extraction list.\n"); 229 treescan(".", ROOTINO, nodeupdates); 230 } 231 createleaves(symtbl); 232 createlinks(); 233 setdirmodes(FORCE); 234 checkrestore(); 235 if (dflag) { 236 vprintf(stdout, "Verify the directory structure\n"); 237 treescan(".", ROOTINO, verifyfile); 238 } 239 dumpsymtable(symtbl, (long)1); 240 break; 241 /* 242 * Resume an incremental file system restoration. 243 */ 244 case 'R': 245 initsymtable(symtbl); 246 skipmaps(); 247 skipdirs(); 248 createleaves(symtbl); 249 createlinks(); 250 setdirmodes(FORCE); 251 checkrestore(); 252 dumpsymtable(symtbl, (long)1); 253 break; 254 /* 255 * List contents of tape. 256 */ 257 case 't': 258 setup(); 259 extractdirs(0); 260 initsymtable((char *)0); 261 while (argc--) { 262 canon(*argv++, name); 263 ino = dirlookup(name); 264 if (ino == 0) 265 continue; 266 treescan(name, ino, listfile); 267 } 268 break; 269 /* 270 * Batch extraction of tape contents. 271 */ 272 case 'x': 273 setup(); 274 extractdirs(1); 275 initsymtable((char *)0); 276 while (argc--) { 277 canon(*argv++, name); 278 ino = dirlookup(name); 279 if (ino == 0) 280 continue; 281 if (mflag) 282 pathcheck(name); 283 treescan(name, ino, addfile); 284 } 285 createfiles(); 286 createlinks(); 287 setdirmodes(0); 288 if (dflag) 289 checkrestore(); 290 break; 291 } 292 exit(0); 293 /* NOTREACHED */ 294 } 295 296 static void 297 usage() 298 { 299 const char *progname = getprogname(); 300 301 (void)fprintf(stderr, 302 "usage: %s -i [-cdhmvyN] [-b blocksize] [-f file] [-s fileno]\n", 303 progname); 304 (void)fprintf(stderr, 305 "\t%s -R [-cdvyN] [-b blocksize] [-f file] [-s fileno]\n", 306 progname); 307 (void)fprintf(stderr, 308 "\t%s -r [-cdvyN] [-b blocksize] [-f file] [-s fileno]\n", 309 progname); 310 (void)fprintf(stderr, 311 "\t%s -t [-cdhvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n", 312 progname); 313 (void)fprintf(stderr, 314 "\t%s -x [-cdhmvyN] [-b blocksize] [-f file] [-s fileno] [file ...]\n", 315 progname); 316 exit(1); 317 } 318 319 /* 320 * obsolete -- 321 * Change set of key letters and ordered arguments into something 322 * getopt(3) will like. 323 */ 324 static void 325 obsolete(argcp, argvp) 326 int *argcp; 327 char **argvp[]; 328 { 329 int argc, flags; 330 char *ap, **argv, *flagsp, **nargv, *p; 331 332 /* Setup. */ 333 argv = *argvp; 334 argc = *argcp; 335 336 /* Return if no arguments or first argument has leading dash. */ 337 ap = argv[1]; 338 if (argc == 1 || *ap == '-') 339 return; 340 341 /* Allocate space for new arguments. */ 342 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 343 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 344 err(1, NULL); 345 346 *nargv++ = *argv; 347 argv += 2; 348 349 for (flags = 0; *ap; ++ap) { 350 switch (*ap) { 351 case 'b': 352 case 'f': 353 case 's': 354 if (*argv == NULL) { 355 warnx("option requires an argument -- %c", *ap); 356 usage(); 357 } 358 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 359 err(1, NULL); 360 nargv[0][0] = '-'; 361 nargv[0][1] = *ap; 362 (void)strcpy(&nargv[0][2], *argv); 363 ++argv; 364 ++nargv; 365 break; 366 default: 367 if (!flags) { 368 *p++ = '-'; 369 flags = 1; 370 } 371 *p++ = *ap; 372 break; 373 } 374 } 375 376 /* Terminate flags. */ 377 if (flags) { 378 *p = '\0'; 379 *nargv++ = flagsp; 380 } 381 382 /* Copy remaining arguments. */ 383 while ((*nargv++ = *argv++) != NULL) 384 ; 385 386 /* Update argument count. */ 387 *argcp = nargv - *argvp - 1; 388 } 389
Indexes created Wed Sep 24 05:09:52 GMT 2025