main.c revision 1.21
1 /* $NetBSD: main.c,v 1.21 2001/02/19 22:56:22 cgd 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 1.21 2001/02/19 22:56:22 cgd 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 FILE *terminal; 81 char *tmpdir; 82 83 int main __P((int, char *[])); 84 static void obsolete __P((int *, char **[])); 85 static void usage __P((void)); 86 87 int 88 main(argc, argv) 89 int argc; 90 char *argv[]; 91 { 92 int ch; 93 ino_t ino; 94 char *inputdev; 95 char *symtbl = "./restoresymtable"; 96 char *p, name[MAXPATHLEN]; 97 98 if (argc < 2) 99 usage(); 100 101 if ((inputdev = getenv("TAPE")) == NULL) 102 inputdev = _PATH_DEFTAPE; 103 if ((tmpdir = getenv("TMPDIR")) == NULL) 104 tmpdir = _PATH_TMP; 105 obsolete(&argc, &argv); 106 while ((ch = getopt(argc, argv, "b:cdf:himNRrs:tuvxy")) != -1) 107 switch(ch) { 108 case 'b': 109 /* Change default tape blocksize. */ 110 bflag = 1; 111 ntrec = strtol(optarg, &p, 10); 112 if (*p) 113 errx(1, "illegal blocksize -- %s", optarg); 114 if (ntrec <= 0) 115 errx(1, "block size must be greater than 0"); 116 break; 117 case 'c': 118 cvtflag = 1; 119 break; 120 case 'd': 121 dflag = 1; 122 break; 123 case 'f': 124 inputdev = optarg; 125 break; 126 case 'h': 127 hflag = 0; 128 break; 129 case 'i': 130 case 'R': 131 case 'r': 132 case 't': 133 case 'x': 134 if (command != '\0') 135 errx(1, 136 "%c and %c options are mutually exclusive", 137 ch, command); 138 command = ch; 139 break; 140 case 'm': 141 mflag = 0; 142 break; 143 case 'N': 144 Nflag = 1; 145 break; 146 case 's': 147 /* Dumpnum (skip to) for multifile dump tapes. */ 148 dumpnum = strtol(optarg, &p, 10); 149 if (*p) 150 errx(1, "illegal dump number -- %s", optarg); 151 if (dumpnum <= 0) 152 errx(1, "dump number must be greater than 0"); 153 break; 154 case 'u': 155 uflag = 1; 156 break; 157 case 'v': 158 vflag = 1; 159 break; 160 case 'y': 161 yflag = 1; 162 break; 163 default: 164 usage(); 165 } 166 argc -= optind; 167 argv += optind; 168 169 if (command == '\0') 170 errx(1, "none of i, R, r, t or x options specified"); 171 172 if (Nflag || command == 't') 173 uflag = 0; 174 175 if (signal(SIGINT, onintr) == SIG_IGN) 176 (void) signal(SIGINT, SIG_IGN); 177 if (signal(SIGTERM, onintr) == SIG_IGN) 178 (void) signal(SIGTERM, SIG_IGN); 179 setlinebuf(stderr); 180 181 atexit(cleanup); 182 183 setinput(inputdev); 184 185 if (argc == 0) { 186 argc = 1; 187 *--argv = "."; 188 } 189 190 switch (command) { 191 /* 192 * Interactive mode. 193 */ 194 case 'i': 195 setup(); 196 extractdirs(1); 197 initsymtable(NULL); 198 runcmdshell(); 199 break; 200 /* 201 * Incremental restoration of a file system. 202 */ 203 case 'r': 204 setup(); 205 if (dumptime > 0) { 206 /* 207 * This is an incremental dump tape. 208 */ 209 vprintf(stdout, "Begin incremental restore\n"); 210 initsymtable(symtbl); 211 extractdirs(1); 212 removeoldleaves(); 213 vprintf(stdout, "Calculate node updates.\n"); 214 treescan(".", ROOTINO, nodeupdates); 215 findunreflinks(); 216 removeoldnodes(); 217 } else { 218 /* 219 * This is a level zero dump tape. 220 */ 221 vprintf(stdout, "Begin level 0 restore\n"); 222 initsymtable((char *)0); 223 extractdirs(1); 224 vprintf(stdout, "Calculate extraction list.\n"); 225 treescan(".", ROOTINO, nodeupdates); 226 } 227 createleaves(symtbl); 228 createlinks(); 229 setdirmodes(FORCE); 230 checkrestore(); 231 if (dflag) { 232 vprintf(stdout, "Verify the directory structure\n"); 233 treescan(".", ROOTINO, verifyfile); 234 } 235 dumpsymtable(symtbl, (long)1); 236 break; 237 /* 238 * Resume an incremental file system restoration. 239 */ 240 case 'R': 241 initsymtable(symtbl); 242 skipmaps(); 243 skipdirs(); 244 createleaves(symtbl); 245 createlinks(); 246 setdirmodes(FORCE); 247 checkrestore(); 248 dumpsymtable(symtbl, (long)1); 249 break; 250 /* 251 * List contents of tape. 252 */ 253 case 't': 254 setup(); 255 extractdirs(0); 256 initsymtable((char *)0); 257 while (argc--) { 258 canon(*argv++, name); 259 ino = dirlookup(name); 260 if (ino == 0) 261 continue; 262 treescan(name, ino, listfile); 263 } 264 break; 265 /* 266 * Batch extraction of tape contents. 267 */ 268 case 'x': 269 setup(); 270 extractdirs(1); 271 initsymtable((char *)0); 272 while (argc--) { 273 canon(*argv++, name); 274 ino = dirlookup(name); 275 if (ino == 0) 276 continue; 277 if (mflag) 278 pathcheck(name); 279 treescan(name, ino, addfile); 280 } 281 createfiles(); 282 createlinks(); 283 setdirmodes(0); 284 if (dflag) 285 checkrestore(); 286 break; 287 } 288 exit(0); 289 /* NOTREACHED */ 290 } 291 292 static void 293 usage() 294 { 295 const char *progname = getprogname(); 296 297 (void)fprintf(stderr, 298 "usage: %s -i [-cdhmvyN] [-b blocksize] [-f file] [-s fileno]\n", 299 progname); 300 (void)fprintf(stderr, 301 "\t%s -R [-cdvyN] [-b blocksize] [-f file] [-s fileno]\n", 302 progname); 303 (void)fprintf(stderr, 304 "\t%s -r [-cdvyN] [-b blocksize] [-f file] [-s fileno]\n", 305 progname); 306 (void)fprintf(stderr, 307 "\t%s -t [-cdhvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n", 308 progname); 309 (void)fprintf(stderr, 310 "\t%s -x [-cdhmvyN] [-b blocksize] [-f file] [-s fileno] [file ...]\n", 311 progname); 312 exit(1); 313 } 314 315 /* 316 * obsolete -- 317 * Change set of key letters and ordered arguments into something 318 * getopt(3) will like. 319 */ 320 static void 321 obsolete(argcp, argvp) 322 int *argcp; 323 char **argvp[]; 324 { 325 int argc, flags; 326 char *ap, **argv, *flagsp, **nargv, *p; 327 328 /* Setup. */ 329 argv = *argvp; 330 argc = *argcp; 331 332 /* Return if no arguments or first argument has leading dash. */ 333 ap = argv[1]; 334 if (argc == 1 || *ap == '-') 335 return; 336 337 /* Allocate space for new arguments. */ 338 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 339 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 340 err(1, NULL); 341 342 *nargv++ = *argv; 343 argv += 2; 344 345 for (flags = 0; *ap; ++ap) { 346 switch (*ap) { 347 case 'b': 348 case 'f': 349 case 's': 350 if (*argv == NULL) { 351 warnx("option requires an argument -- %c", *ap); 352 usage(); 353 } 354 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 355 err(1, NULL); 356 nargv[0][0] = '-'; 357 nargv[0][1] = *ap; 358 (void)strcpy(&nargv[0][2], *argv); 359 ++argv; 360 ++nargv; 361 break; 362 default: 363 if (!flags) { 364 *p++ = '-'; 365 flags = 1; 366 } 367 *p++ = *ap; 368 break; 369 } 370 } 371 372 /* Terminate flags. */ 373 if (flags) { 374 *p = '\0'; 375 *nargv++ = flagsp; 376 } 377 378 /* Copy remaining arguments. */ 379 while ((*nargv++ = *argv++) != NULL) 380 ; 381 382 /* Update argument count. */ 383 *argcp = nargv - *argvp - 1; 384 } 385
Indexes created Tue Sep 23 14:10:03 GMT 2025