main.c revision 1.10
1 /* $NetBSD: main.c,v 1.10 1996/02/06 00:00:22 mrg 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 #ifndef lint 37 static char copyright[] = 38 "@(#) 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 8.3 (Berkeley) 9/13/94"; 45 #else 46 static char rcsid[] = "$NetBSD: main.c,v 1.10 1996/02/06 00:00:22 mrg Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/time.h> 52 53 #include <ufs/ffs/fs.h> 54 #include <ufs/ufs/dinode.h> 55 #include <protocols/dumprestore.h> 56 57 #include <err.h> 58 #include <errno.h> 59 #include <signal.h> 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 64 #include "pathnames.h" 65 #include "restore.h" 66 #include "extern.h" 67 68 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 69 int hflag = 1, mflag = 1, Nflag = 0; 70 char command = '\0'; 71 long dumpnum = 1; 72 long volno = 0; 73 long ntrec; 74 char *dumpmap; 75 char *usedinomap; 76 ino_t maxino; 77 time_t dumptime; 78 time_t dumpdate; 79 FILE *terminal; 80 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 obsolete(&argc, &argv); 101 while ((ch = getopt(argc, argv, "b:cdf:himNRrs:tvxy")) != EOF) 102 switch(ch) { 103 case 'b': 104 /* Change default tape blocksize. */ 105 bflag = 1; 106 ntrec = strtol(optarg, &p, 10); 107 if (*p) 108 errx(1, "illegal blocksize -- %s", optarg); 109 if (ntrec <= 0) 110 errx(1, "block size must be greater than 0"); 111 break; 112 case 'c': 113 cvtflag = 1; 114 break; 115 case 'd': 116 dflag = 1; 117 break; 118 case 'f': 119 inputdev = optarg; 120 break; 121 case 'h': 122 hflag = 0; 123 break; 124 case 'i': 125 case 'R': 126 case 'r': 127 case 't': 128 case 'x': 129 if (command != '\0') 130 errx(1, 131 "%c and %c options are mutually exclusive", 132 ch, command); 133 command = ch; 134 break; 135 case 'm': 136 mflag = 0; 137 break; 138 case 'N': 139 Nflag = 1; 140 break; 141 case 's': 142 /* Dumpnum (skip to) for multifile dump tapes. */ 143 dumpnum = strtol(optarg, &p, 10); 144 if (*p) 145 errx(1, "illegal dump number -- %s", optarg); 146 if (dumpnum <= 0) 147 errx(1, "dump number must be greater than 0"); 148 break; 149 case 'v': 150 vflag = 1; 151 break; 152 case 'y': 153 yflag = 1; 154 break; 155 default: 156 usage(); 157 } 158 argc -= optind; 159 argv += optind; 160 161 if (command == '\0') 162 errx(1, "none of i, R, r, t or x options specified"); 163 164 if (signal(SIGINT, onintr) == SIG_IGN) 165 (void) signal(SIGINT, SIG_IGN); 166 if (signal(SIGTERM, onintr) == SIG_IGN) 167 (void) signal(SIGTERM, SIG_IGN); 168 setlinebuf(stderr); 169 170 atexit(cleanup); 171 172 setinput(inputdev); 173 174 if (argc == 0) { 175 argc = 1; 176 *--argv = "."; 177 } 178 179 switch (command) { 180 /* 181 * Interactive mode. 182 */ 183 case 'i': 184 setup(); 185 extractdirs(1); 186 initsymtable(NULL); 187 runcmdshell(); 188 break; 189 /* 190 * Incremental restoration of a file system. 191 */ 192 case 'r': 193 setup(); 194 if (dumptime > 0) { 195 /* 196 * This is an incremental dump tape. 197 */ 198 vprintf(stdout, "Begin incremental restore\n"); 199 initsymtable(symtbl); 200 extractdirs(1); 201 removeoldleaves(); 202 vprintf(stdout, "Calculate node updates.\n"); 203 treescan(".", ROOTINO, nodeupdates); 204 findunreflinks(); 205 removeoldnodes(); 206 } else { 207 /* 208 * This is a level zero dump tape. 209 */ 210 vprintf(stdout, "Begin level 0 restore\n"); 211 initsymtable((char *)0); 212 extractdirs(1); 213 vprintf(stdout, "Calculate extraction list.\n"); 214 treescan(".", ROOTINO, nodeupdates); 215 } 216 createleaves(symtbl); 217 createlinks(); 218 setdirmodes(FORCE); 219 checkrestore(); 220 if (dflag) { 221 vprintf(stdout, "Verify the directory structure\n"); 222 treescan(".", ROOTINO, verifyfile); 223 } 224 dumpsymtable(symtbl, (long)1); 225 break; 226 /* 227 * Resume an incremental file system restoration. 228 */ 229 case 'R': 230 initsymtable(symtbl); 231 skipmaps(); 232 skipdirs(); 233 createleaves(symtbl); 234 createlinks(); 235 setdirmodes(FORCE); 236 checkrestore(); 237 dumpsymtable(symtbl, (long)1); 238 break; 239 /* 240 * List contents of tape. 241 */ 242 case 't': 243 setup(); 244 extractdirs(0); 245 initsymtable((char *)0); 246 while (argc--) { 247 canon(*argv++, name); 248 ino = dirlookup(name); 249 if (ino == 0) 250 continue; 251 treescan(name, ino, listfile); 252 } 253 break; 254 /* 255 * Batch extraction of tape contents. 256 */ 257 case 'x': 258 setup(); 259 extractdirs(1); 260 initsymtable((char *)0); 261 while (argc--) { 262 canon(*argv++, name); 263 ino = dirlookup(name); 264 if (ino == 0) 265 continue; 266 if (mflag) 267 pathcheck(name); 268 treescan(name, ino, addfile); 269 } 270 createfiles(); 271 createlinks(); 272 setdirmodes(0); 273 if (dflag) 274 checkrestore(); 275 break; 276 } 277 exit(0); 278 /* NOTREACHED */ 279 } 280 281 static void 282 usage() 283 { 284 285 (void)fprintf(stderr, "usage: restore -i [-chmvy] [-b blocksize] [-f file] [-s fileno]\n"); 286 (void)fprintf(stderr, " restore -R [-cvy] [-b blocksize] [-f file] [-s fileno]\n"); 287 (void)fprintf(stderr, " restore -r [-cvy] [-b blocksize] [-f file] [-s fileno]\n"); 288 (void)fprintf(stderr, " restore -t [-chvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n"); 289 (void)fprintf(stderr, " restore -x [-chmvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n"); 290 exit(1); 291 } 292 293 /* 294 * obsolete -- 295 * Change set of key letters and ordered arguments into something 296 * getopt(3) will like. 297 */ 298 static void 299 obsolete(argcp, argvp) 300 int *argcp; 301 char **argvp[]; 302 { 303 int argc, flags; 304 char *ap, **argv, *flagsp, **nargv, *p; 305 306 /* Setup. */ 307 argv = *argvp; 308 argc = *argcp; 309 310 /* Return if no arguments or first argument has leading dash. */ 311 ap = argv[1]; 312 if (argc == 1 || *ap == '-') 313 return; 314 315 /* Allocate space for new arguments. */ 316 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 317 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 318 err(1, NULL); 319 320 *nargv++ = *argv; 321 argv += 2; 322 323 for (flags = 0; *ap; ++ap) { 324 switch (*ap) { 325 case 'b': 326 case 'f': 327 case 's': 328 if (*argv == NULL) { 329 warnx("option requires an argument -- %c", *ap); 330 usage(); 331 } 332 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 333 err(1, NULL); 334 nargv[0][0] = '-'; 335 nargv[0][1] = *ap; 336 (void)strcpy(&nargv[0][2], *argv); 337 ++argv; 338 ++nargv; 339 break; 340 default: 341 if (!flags) { 342 *p++ = '-'; 343 flags = 1; 344 } 345 *p++ = *ap; 346 break; 347 } 348 } 349 350 /* Terminate flags. */ 351 if (flags) { 352 *p = '\0'; 353 *nargv++ = flagsp; 354 } 355 356 /* Copy remaining arguments. */ 357 while (*nargv++ = *argv++); 358 359 /* Update argument count. */ 360 *argcp = nargv - *argvp - 1; 361 } 362
Indexes created Tue Sep 23 14:10:03 GMT 2025