main.c revision 1.22
1 /* $NetBSD: main.c,v 1.22 2002/11/18 04:28:03 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/4/95"; 45 #else 46 __RCSID("$NetBSD: main.c,v 1.22 2002/11/18 04:28:03 enami Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/time.h> 52 53 #include <ufs/ufs/dinode.h> 54 #include <ufs/ffs/fs.h> 55 #include <protocols/dumprestore.h> 56 57 #include <err.h> 58 #include <errno.h> 59 #include <paths.h> 60 #include <signal.h> 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <unistd.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 int32_t dumpnum = 1; 73 int32_t volno = 0; 74 int32_t ntrec; 75 char *dumpmap; 76 char *usedinomap; 77 ino_t maxino; 78 time_t dumptime; 79 time_t dumpdate; 80 size_t pagesize; 81 FILE *terminal; 82 char *tmpdir; 83 84 int main __P((int, char *[])); 85 static void obsolete __P((int *, char **[])); 86 static void usage __P((void)); 87 88 int 89 main(argc, argv) 90 int argc; 91 char *argv[]; 92 { 93 int ch; 94 ino_t ino; 95 char *inputdev; 96 char *symtbl = "./restoresymtable"; 97 char *p, name[MAXPATHLEN]; 98 99 if (argc < 2) 100 usage(); 101 102 if ((inputdev = getenv("TAPE")) == NULL) 103 inputdev = _PATH_DEFTAPE; 104 if ((tmpdir = getenv("TMPDIR")) == NULL) 105 tmpdir = _PATH_TMP; 106 obsolete(&argc, &argv); 107 while ((ch = getopt(argc, argv, "b:cdf:himNRrs:tuvxy")) != -1) 108 switch(ch) { 109 case 'b': 110 /* Change default tape blocksize. */ 111 bflag = 1; 112 ntrec = strtol(optarg, &p, 10); 113 if (*p) 114 errx(1, "illegal blocksize -- %s", optarg); 115 if (ntrec <= 0) 116 errx(1, "block size must be greater than 0"); 117 break; 118 case 'c': 119 cvtflag = 1; 120 break; 121 case 'd': 122 dflag = 1; 123 break; 124 case 'f': 125 inputdev = optarg; 126 break; 127 case 'h': 128 hflag = 0; 129 break; 130 case 'i': 131 case 'R': 132 case 'r': 133 case 't': 134 case 'x': 135 if (command != '\0') 136 errx(1, 137 "%c and %c options are mutually exclusive", 138 ch, command); 139 command = ch; 140 break; 141 case 'm': 142 mflag = 0; 143 break; 144 case 'N': 145 Nflag = 1; 146 break; 147 case 's': 148 /* Dumpnum (skip to) for multifile dump tapes. */ 149 dumpnum = strtol(optarg, &p, 10); 150 if (*p) 151 errx(1, "illegal dump number -- %s", optarg); 152 if (dumpnum <= 0) 153 errx(1, "dump number must be greater than 0"); 154 break; 155 case 'u': 156 uflag = 1; 157 break; 158 case 'v': 159 vflag = 1; 160 break; 161 case 'y': 162 yflag = 1; 163 break; 164 default: 165 usage(); 166 } 167 argc -= optind; 168 argv += optind; 169 170 if (command == '\0') 171 errx(1, "none of i, R, r, t or x options specified"); 172 173 if (Nflag || command == 't') 174 uflag = 0; 175 176 if (signal(SIGINT, onintr) == SIG_IGN) 177 (void) signal(SIGINT, SIG_IGN); 178 if (signal(SIGTERM, onintr) == SIG_IGN) 179 (void) signal(SIGTERM, SIG_IGN); 180 setlinebuf(stderr); 181 pagesize = sysconf(_SC_PAGESIZE); 182 183 atexit(cleanup); 184 185 setinput(inputdev); 186 187 if (argc == 0) { 188 argc = 1; 189 *--argv = "."; 190 } 191 192 switch (command) { 193 /* 194 * Interactive mode. 195 */ 196 case 'i': 197 setup(); 198 extractdirs(1); 199 initsymtable(NULL); 200 runcmdshell(); 201 break; 202 /* 203 * Incremental restoration of a file system. 204 */ 205 case 'r': 206 setup(); 207 if (dumptime > 0) { 208 /* 209 * This is an incremental dump tape. 210 */ 211 vprintf(stdout, "Begin incremental restore\n"); 212 initsymtable(symtbl); 213 extractdirs(1); 214 removeoldleaves(); 215 vprintf(stdout, "Calculate node updates.\n"); 216 treescan(".", ROOTINO, nodeupdates); 217 findunreflinks(); 218 removeoldnodes(); 219 } else { 220 /* 221 * This is a level zero dump tape. 222 */ 223 vprintf(stdout, "Begin level 0 restore\n"); 224 initsymtable((char *)0); 225 extractdirs(1); 226 vprintf(stdout, "Calculate extraction list.\n"); 227 treescan(".", ROOTINO, nodeupdates); 228 } 229 createleaves(symtbl); 230 createlinks(); 231 setdirmodes(FORCE); 232 checkrestore(); 233 if (dflag) { 234 vprintf(stdout, "Verify the directory structure\n"); 235 treescan(".", ROOTINO, verifyfile); 236 } 237 dumpsymtable(symtbl, (long)1); 238 break; 239 /* 240 * Resume an incremental file system restoration. 241 */ 242 case 'R': 243 initsymtable(symtbl); 244 skipmaps(); 245 skipdirs(); 246 createleaves(symtbl); 247 createlinks(); 248 setdirmodes(FORCE); 249 checkrestore(); 250 dumpsymtable(symtbl, (long)1); 251 break; 252 /* 253 * List contents of tape. 254 */ 255 case 't': 256 setup(); 257 extractdirs(0); 258 initsymtable((char *)0); 259 while (argc--) { 260 canon(*argv++, name); 261 ino = dirlookup(name); 262 if (ino == 0) 263 continue; 264 treescan(name, ino, listfile); 265 } 266 break; 267 /* 268 * Batch extraction of tape contents. 269 */ 270 case 'x': 271 setup(); 272 extractdirs(1); 273 initsymtable((char *)0); 274 while (argc--) { 275 canon(*argv++, name); 276 ino = dirlookup(name); 277 if (ino == 0) 278 continue; 279 if (mflag) 280 pathcheck(name); 281 treescan(name, ino, addfile); 282 } 283 createfiles(); 284 createlinks(); 285 setdirmodes(0); 286 if (dflag) 287 checkrestore(); 288 break; 289 } 290 exit(0); 291 /* NOTREACHED */ 292 } 293 294 static void 295 usage() 296 { 297 const char *progname = getprogname(); 298 299 (void)fprintf(stderr, 300 "usage: %s -i [-cdhmvyN] [-b blocksize] [-f file] [-s fileno]\n", 301 progname); 302 (void)fprintf(stderr, 303 "\t%s -R [-cdvyN] [-b blocksize] [-f file] [-s fileno]\n", 304 progname); 305 (void)fprintf(stderr, 306 "\t%s -r [-cdvyN] [-b blocksize] [-f file] [-s fileno]\n", 307 progname); 308 (void)fprintf(stderr, 309 "\t%s -t [-cdhvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n", 310 progname); 311 (void)fprintf(stderr, 312 "\t%s -x [-cdhmvyN] [-b blocksize] [-f file] [-s fileno] [file ...]\n", 313 progname); 314 exit(1); 315 } 316 317 /* 318 * obsolete -- 319 * Change set of key letters and ordered arguments into something 320 * getopt(3) will like. 321 */ 322 static void 323 obsolete(argcp, argvp) 324 int *argcp; 325 char **argvp[]; 326 { 327 int argc, flags; 328 char *ap, **argv, *flagsp, **nargv, *p; 329 330 /* Setup. */ 331 argv = *argvp; 332 argc = *argcp; 333 334 /* Return if no arguments or first argument has leading dash. */ 335 ap = argv[1]; 336 if (argc == 1 || *ap == '-') 337 return; 338 339 /* Allocate space for new arguments. */ 340 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 341 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 342 err(1, NULL); 343 344 *nargv++ = *argv; 345 argv += 2; 346 347 for (flags = 0; *ap; ++ap) { 348 switch (*ap) { 349 case 'b': 350 case 'f': 351 case 's': 352 if (*argv == NULL) { 353 warnx("option requires an argument -- %c", *ap); 354 usage(); 355 } 356 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 357 err(1, NULL); 358 nargv[0][0] = '-'; 359 nargv[0][1] = *ap; 360 (void)strcpy(&nargv[0][2], *argv); 361 ++argv; 362 ++nargv; 363 break; 364 default: 365 if (!flags) { 366 *p++ = '-'; 367 flags = 1; 368 } 369 *p++ = *ap; 370 break; 371 } 372 } 373 374 /* Terminate flags. */ 375 if (flags) { 376 *p = '\0'; 377 *nargv++ = flagsp; 378 } 379 380 /* Copy remaining arguments. */ 381 while ((*nargv++ = *argv++) != NULL) 382 ; 383 384 /* Update argument count. */ 385 *argcp = nargv - *argvp - 1; 386 } 387
Indexes created Tue Sep 23 14:10:03 GMT 2025