main.c revision 1.23
1 /* $NetBSD: main.c,v 1.23 2003/08/07 10:04:37 agc 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 1.23 2003/08/07 10:04:37 agc 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, 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:cdf: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 dflag = 1; 119 break; 120 case 'f': 121 inputdev = optarg; 122 break; 123 case 'h': 124 hflag = 0; 125 break; 126 case 'i': 127 case 'R': 128 case 'r': 129 case 't': 130 case 'x': 131 if (command != '\0') 132 errx(1, 133 "%c and %c options are mutually exclusive", 134 ch, command); 135 command = ch; 136 break; 137 case 'm': 138 mflag = 0; 139 break; 140 case 'N': 141 Nflag = 1; 142 break; 143 case 's': 144 /* Dumpnum (skip to) for multifile dump tapes. */ 145 dumpnum = strtol(optarg, &p, 10); 146 if (*p) 147 errx(1, "illegal dump number -- %s", optarg); 148 if (dumpnum <= 0) 149 errx(1, "dump number must be greater than 0"); 150 break; 151 case 'u': 152 uflag = 1; 153 break; 154 case 'v': 155 vflag = 1; 156 break; 157 case 'y': 158 yflag = 1; 159 break; 160 default: 161 usage(); 162 } 163 argc -= optind; 164 argv += optind; 165 166 if (command == '\0') 167 errx(1, "none of i, R, r, t or x options specified"); 168 169 if (Nflag || command == 't') 170 uflag = 0; 171 172 if (signal(SIGINT, onintr) == SIG_IGN) 173 (void) signal(SIGINT, SIG_IGN); 174 if (signal(SIGTERM, onintr) == SIG_IGN) 175 (void) signal(SIGTERM, SIG_IGN); 176 setlinebuf(stderr); 177 pagesize = sysconf(_SC_PAGESIZE); 178 179 atexit(cleanup); 180 181 setinput(inputdev); 182 183 if (argc == 0) { 184 argc = 1; 185 *--argv = "."; 186 } 187 188 switch (command) { 189 /* 190 * Interactive mode. 191 */ 192 case 'i': 193 setup(); 194 extractdirs(1); 195 initsymtable(NULL); 196 runcmdshell(); 197 break; 198 /* 199 * Incremental restoration of a file system. 200 */ 201 case 'r': 202 setup(); 203 if (dumptime > 0) { 204 /* 205 * This is an incremental dump tape. 206 */ 207 vprintf(stdout, "Begin incremental restore\n"); 208 initsymtable(symtbl); 209 extractdirs(1); 210 removeoldleaves(); 211 vprintf(stdout, "Calculate node updates.\n"); 212 treescan(".", ROOTINO, nodeupdates); 213 findunreflinks(); 214 removeoldnodes(); 215 } else { 216 /* 217 * This is a level zero dump tape. 218 */ 219 vprintf(stdout, "Begin level 0 restore\n"); 220 initsymtable((char *)0); 221 extractdirs(1); 222 vprintf(stdout, "Calculate extraction list.\n"); 223 treescan(".", ROOTINO, nodeupdates); 224 } 225 createleaves(symtbl); 226 createlinks(); 227 setdirmodes(FORCE); 228 checkrestore(); 229 if (dflag) { 230 vprintf(stdout, "Verify the directory structure\n"); 231 treescan(".", ROOTINO, verifyfile); 232 } 233 dumpsymtable(symtbl, (long)1); 234 break; 235 /* 236 * Resume an incremental file system restoration. 237 */ 238 case 'R': 239 initsymtable(symtbl); 240 skipmaps(); 241 skipdirs(); 242 createleaves(symtbl); 243 createlinks(); 244 setdirmodes(FORCE); 245 checkrestore(); 246 dumpsymtable(symtbl, (long)1); 247 break; 248 /* 249 * List contents of tape. 250 */ 251 case 't': 252 setup(); 253 extractdirs(0); 254 initsymtable((char *)0); 255 while (argc--) { 256 canon(*argv++, name); 257 ino = dirlookup(name); 258 if (ino == 0) 259 continue; 260 treescan(name, ino, listfile); 261 } 262 break; 263 /* 264 * Batch extraction of tape contents. 265 */ 266 case 'x': 267 setup(); 268 extractdirs(1); 269 initsymtable((char *)0); 270 while (argc--) { 271 canon(*argv++, name); 272 ino = dirlookup(name); 273 if (ino == 0) 274 continue; 275 if (mflag) 276 pathcheck(name); 277 treescan(name, ino, addfile); 278 } 279 createfiles(); 280 createlinks(); 281 setdirmodes(0); 282 if (dflag) 283 checkrestore(); 284 break; 285 } 286 exit(0); 287 /* NOTREACHED */ 288 } 289 290 static void 291 usage() 292 { 293 const char *progname = getprogname(); 294 295 (void)fprintf(stderr, 296 "usage: %s -i [-cdhmvyN] [-b blocksize] [-f file] [-s fileno]\n", 297 progname); 298 (void)fprintf(stderr, 299 "\t%s -R [-cdvyN] [-b blocksize] [-f file] [-s fileno]\n", 300 progname); 301 (void)fprintf(stderr, 302 "\t%s -r [-cdvyN] [-b blocksize] [-f file] [-s fileno]\n", 303 progname); 304 (void)fprintf(stderr, 305 "\t%s -t [-cdhvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n", 306 progname); 307 (void)fprintf(stderr, 308 "\t%s -x [-cdhmvyN] [-b blocksize] [-f file] [-s fileno] [file ...]\n", 309 progname); 310 exit(1); 311 } 312 313 /* 314 * obsolete -- 315 * Change set of key letters and ordered arguments into something 316 * getopt(3) will like. 317 */ 318 static void 319 obsolete(argcp, argvp) 320 int *argcp; 321 char **argvp[]; 322 { 323 int argc, flags; 324 char *ap, **argv, *flagsp, **nargv, *p; 325 326 /* Setup. */ 327 argv = *argvp; 328 argc = *argcp; 329 330 /* Return if no arguments or first argument has leading dash. */ 331 ap = argv[1]; 332 if (argc == 1 || *ap == '-') 333 return; 334 335 /* Allocate space for new arguments. */ 336 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 337 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 338 err(1, NULL); 339 340 *nargv++ = *argv; 341 argv += 2; 342 343 for (flags = 0; *ap; ++ap) { 344 switch (*ap) { 345 case 'b': 346 case 'f': 347 case 's': 348 if (*argv == NULL) { 349 warnx("option requires an argument -- %c", *ap); 350 usage(); 351 } 352 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 353 err(1, NULL); 354 nargv[0][0] = '-'; 355 nargv[0][1] = *ap; 356 (void)strcpy(&nargv[0][2], *argv); 357 ++argv; 358 ++nargv; 359 break; 360 default: 361 if (!flags) { 362 *p++ = '-'; 363 flags = 1; 364 } 365 *p++ = *ap; 366 break; 367 } 368 } 369 370 /* Terminate flags. */ 371 if (flags) { 372 *p = '\0'; 373 *nargv++ = flagsp; 374 } 375 376 /* Copy remaining arguments. */ 377 while ((*nargv++ = *argv++) != NULL) 378 ; 379 380 /* Update argument count. */ 381 *argcp = nargv - *argvp - 1; 382 } 383
Indexes created Tue Sep 23 07:09:52 GMT 2025