main.c revision 1.16
1 /* $NetBSD: main.c,v 1.16 1997/09/16 13:44:14 lukem 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 1.16 1997/09/16 13:44:14 lukem 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 extern char *__progname; /* from crt0.o */ 70 71 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 72 int hflag = 1, mflag = 1, Nflag = 0; 73 char command = '\0'; 74 int32_t dumpnum = 1; 75 int32_t volno = 0; 76 int32_t ntrec; 77 char *dumpmap; 78 char *usedinomap; 79 ino_t maxino; 80 time_t dumptime; 81 time_t dumpdate; 82 FILE *terminal; 83 char *tmpdir; 84 85 int main __P((int, char *[])); 86 static void obsolete __P((int *, char **[])); 87 static void usage __P((void)); 88 89 int 90 main(argc, argv) 91 int argc; 92 char *argv[]; 93 { 94 int ch; 95 ino_t ino; 96 char *inputdev; 97 char *symtbl = "./restoresymtable"; 98 char *p, name[MAXPATHLEN]; 99 100 if (argc < 2) 101 usage(); 102 103 if ((inputdev = getenv("TAPE")) == NULL) 104 inputdev = _PATH_DEFTAPE; 105 if ((tmpdir = getenv("TMPDIR")) == NULL) 106 tmpdir = _PATH_TMP; 107 obsolete(&argc, &argv); 108 while ((ch = getopt(argc, argv, "b:cdf:himNRrs:tvxy")) != -1) 109 switch(ch) { 110 case 'b': 111 /* Change default tape blocksize. */ 112 bflag = 1; 113 ntrec = strtol(optarg, &p, 10); 114 if (*p) 115 errx(1, "illegal blocksize -- %s", optarg); 116 if (ntrec <= 0) 117 errx(1, "block size must be greater than 0"); 118 break; 119 case 'c': 120 cvtflag = 1; 121 break; 122 case 'd': 123 dflag = 1; 124 break; 125 case 'f': 126 inputdev = optarg; 127 break; 128 case 'h': 129 hflag = 0; 130 break; 131 case 'i': 132 case 'R': 133 case 'r': 134 case 't': 135 case 'x': 136 if (command != '\0') 137 errx(1, 138 "%c and %c options are mutually exclusive", 139 ch, command); 140 command = ch; 141 break; 142 case 'm': 143 mflag = 0; 144 break; 145 case 'N': 146 Nflag = 1; 147 break; 148 case 's': 149 /* Dumpnum (skip to) for multifile dump tapes. */ 150 dumpnum = strtol(optarg, &p, 10); 151 if (*p) 152 errx(1, "illegal dump number -- %s", optarg); 153 if (dumpnum <= 0) 154 errx(1, "dump number must be greater than 0"); 155 break; 156 case 'v': 157 vflag = 1; 158 break; 159 case 'y': 160 yflag = 1; 161 break; 162 default: 163 usage(); 164 } 165 argc -= optind; 166 argv += optind; 167 168 if (command == '\0') 169 errx(1, "none of i, R, r, t or x options specified"); 170 171 if (signal(SIGINT, onintr) == SIG_IGN) 172 (void) signal(SIGINT, SIG_IGN); 173 if (signal(SIGTERM, onintr) == SIG_IGN) 174 (void) signal(SIGTERM, SIG_IGN); 175 setlinebuf(stderr); 176 177 atexit(cleanup); 178 179 setinput(inputdev); 180 181 if (argc == 0) { 182 argc = 1; 183 *--argv = "."; 184 } 185 186 switch (command) { 187 /* 188 * Interactive mode. 189 */ 190 case 'i': 191 setup(); 192 extractdirs(1); 193 initsymtable(NULL); 194 runcmdshell(); 195 break; 196 /* 197 * Incremental restoration of a file system. 198 */ 199 case 'r': 200 setup(); 201 if (dumptime > 0) { 202 /* 203 * This is an incremental dump tape. 204 */ 205 vprintf(stdout, "Begin incremental restore\n"); 206 initsymtable(symtbl); 207 extractdirs(1); 208 removeoldleaves(); 209 vprintf(stdout, "Calculate node updates.\n"); 210 treescan(".", ROOTINO, nodeupdates); 211 findunreflinks(); 212 removeoldnodes(); 213 } else { 214 /* 215 * This is a level zero dump tape. 216 */ 217 vprintf(stdout, "Begin level 0 restore\n"); 218 initsymtable((char *)0); 219 extractdirs(1); 220 vprintf(stdout, "Calculate extraction list.\n"); 221 treescan(".", ROOTINO, nodeupdates); 222 } 223 createleaves(symtbl); 224 createlinks(); 225 setdirmodes(FORCE); 226 checkrestore(); 227 if (dflag) { 228 vprintf(stdout, "Verify the directory structure\n"); 229 treescan(".", ROOTINO, verifyfile); 230 } 231 dumpsymtable(symtbl, (long)1); 232 break; 233 /* 234 * Resume an incremental file system restoration. 235 */ 236 case 'R': 237 initsymtable(symtbl); 238 skipmaps(); 239 skipdirs(); 240 createleaves(symtbl); 241 createlinks(); 242 setdirmodes(FORCE); 243 checkrestore(); 244 dumpsymtable(symtbl, (long)1); 245 break; 246 /* 247 * List contents of tape. 248 */ 249 case 't': 250 setup(); 251 extractdirs(0); 252 initsymtable((char *)0); 253 while (argc--) { 254 canon(*argv++, name); 255 ino = dirlookup(name); 256 if (ino == 0) 257 continue; 258 treescan(name, ino, listfile); 259 } 260 break; 261 /* 262 * Batch extraction of tape contents. 263 */ 264 case 'x': 265 setup(); 266 extractdirs(1); 267 initsymtable((char *)0); 268 while (argc--) { 269 canon(*argv++, name); 270 ino = dirlookup(name); 271 if (ino == 0) 272 continue; 273 if (mflag) 274 pathcheck(name); 275 treescan(name, ino, addfile); 276 } 277 createfiles(); 278 createlinks(); 279 setdirmodes(0); 280 if (dflag) 281 checkrestore(); 282 break; 283 } 284 exit(0); 285 /* NOTREACHED */ 286 } 287 288 static void 289 usage() 290 { 291 292 (void)fprintf(stderr, 293 "usage: %s -i [-chmvy] [-b blocksize] [-f file] [-s fileno]\n", 294 __progname); 295 (void)fprintf(stderr, 296 "\t%s -R [-cvy] [-b blocksize] [-f file] [-s fileno]\n", 297 __progname); 298 (void)fprintf(stderr, 299 "\t%s -r [-cvy] [-b blocksize] [-f file] [-s fileno]\n", 300 __progname); 301 (void)fprintf(stderr, 302 "\t%s -t [-chvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n", 303 __progname); 304 (void)fprintf(stderr, 305 "\t%s -x [-chmvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n", 306 __progname); 307 exit(1); 308 } 309 310 /* 311 * obsolete -- 312 * Change set of key letters and ordered arguments into something 313 * getopt(3) will like. 314 */ 315 static void 316 obsolete(argcp, argvp) 317 int *argcp; 318 char **argvp[]; 319 { 320 int argc, flags; 321 char *ap, **argv, *flagsp, **nargv, *p; 322 323 /* Setup. */ 324 argv = *argvp; 325 argc = *argcp; 326 327 /* Return if no arguments or first argument has leading dash. */ 328 ap = argv[1]; 329 if (argc == 1 || *ap == '-') 330 return; 331 332 /* Allocate space for new arguments. */ 333 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 334 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 335 err(1, "%s", ""); 336 337 *nargv++ = *argv; 338 argv += 2; 339 340 for (flags = 0; *ap; ++ap) { 341 switch (*ap) { 342 case 'b': 343 case 'f': 344 case 's': 345 if (*argv == NULL) { 346 warnx("option requires an argument -- %c", *ap); 347 usage(); 348 } 349 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 350 err(1, "%s", ""); 351 nargv[0][0] = '-'; 352 nargv[0][1] = *ap; 353 (void)strcpy(&nargv[0][2], *argv); 354 ++argv; 355 ++nargv; 356 break; 357 default: 358 if (!flags) { 359 *p++ = '-'; 360 flags = 1; 361 } 362 *p++ = *ap; 363 break; 364 } 365 } 366 367 /* Terminate flags. */ 368 if (flags) { 369 *p = '\0'; 370 *nargv++ = flagsp; 371 } 372 373 /* Copy remaining arguments. */ 374 while ((*nargv++ = *argv++) != NULL) 375 ; 376 377 /* Update argument count. */ 378 *argcp = nargv - *argvp - 1; 379 } 380
Indexes created Tue Sep 23 14:10:03 GMT 2025