main.c revision 1.11
1 /* $NetBSD: main.c,v 1.11 1996/03/15 22:39:39 scottr 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 1.11 1996/03/15 22:39:39 scottr 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 uid_t uid; /* real uid */ 81 uid_t euid; /* effective uid */ 82 83 static void obsolete __P((int *, char **[])); 84 static void usage __P((void)); 85 86 int 87 main(argc, argv) 88 int argc; 89 char *argv[]; 90 { 91 int ch; 92 ino_t ino; 93 char *inputdev; 94 char *symtbl = "./restoresymtable"; 95 char *p, name[MAXPATHLEN]; 96 97 uid = getuid(); 98 euid = geteuid(); 99 (void) seteuid(uid); 100 101 if (argc < 2) 102 usage(); 103 104 if ((inputdev = getenv("TAPE")) == NULL) 105 inputdev = _PATH_DEFTAPE; 106 obsolete(&argc, &argv); 107 while ((ch = getopt(argc, argv, "b:cdf:himNRrs:tvxy")) != EOF) 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 'v': 156 vflag = 1; 157 break; 158 case 'y': 159 yflag = 1; 160 break; 161 default: 162 usage(); 163 } 164 argc -= optind; 165 argv += optind; 166 167 if (command == '\0') 168 errx(1, "none of i, R, r, t or x options specified"); 169 170 if (signal(SIGINT, onintr) == SIG_IGN) 171 (void) signal(SIGINT, SIG_IGN); 172 if (signal(SIGTERM, onintr) == SIG_IGN) 173 (void) signal(SIGTERM, SIG_IGN); 174 setlinebuf(stderr); 175 176 atexit(cleanup); 177 178 setinput(inputdev); 179 180 if (argc == 0) { 181 argc = 1; 182 *--argv = "."; 183 } 184 185 switch (command) { 186 /* 187 * Interactive mode. 188 */ 189 case 'i': 190 setup(); 191 extractdirs(1); 192 initsymtable(NULL); 193 runcmdshell(); 194 break; 195 /* 196 * Incremental restoration of a file system. 197 */ 198 case 'r': 199 setup(); 200 if (dumptime > 0) { 201 /* 202 * This is an incremental dump tape. 203 */ 204 vprintf(stdout, "Begin incremental restore\n"); 205 initsymtable(symtbl); 206 extractdirs(1); 207 removeoldleaves(); 208 vprintf(stdout, "Calculate node updates.\n"); 209 treescan(".", ROOTINO, nodeupdates); 210 findunreflinks(); 211 removeoldnodes(); 212 } else { 213 /* 214 * This is a level zero dump tape. 215 */ 216 vprintf(stdout, "Begin level 0 restore\n"); 217 initsymtable((char *)0); 218 extractdirs(1); 219 vprintf(stdout, "Calculate extraction list.\n"); 220 treescan(".", ROOTINO, nodeupdates); 221 } 222 createleaves(symtbl); 223 createlinks(); 224 setdirmodes(FORCE); 225 checkrestore(); 226 if (dflag) { 227 vprintf(stdout, "Verify the directory structure\n"); 228 treescan(".", ROOTINO, verifyfile); 229 } 230 dumpsymtable(symtbl, (long)1); 231 break; 232 /* 233 * Resume an incremental file system restoration. 234 */ 235 case 'R': 236 initsymtable(symtbl); 237 skipmaps(); 238 skipdirs(); 239 createleaves(symtbl); 240 createlinks(); 241 setdirmodes(FORCE); 242 checkrestore(); 243 dumpsymtable(symtbl, (long)1); 244 break; 245 /* 246 * List contents of tape. 247 */ 248 case 't': 249 setup(); 250 extractdirs(0); 251 initsymtable((char *)0); 252 while (argc--) { 253 canon(*argv++, name); 254 ino = dirlookup(name); 255 if (ino == 0) 256 continue; 257 treescan(name, ino, listfile); 258 } 259 break; 260 /* 261 * Batch extraction of tape contents. 262 */ 263 case 'x': 264 setup(); 265 extractdirs(1); 266 initsymtable((char *)0); 267 while (argc--) { 268 canon(*argv++, name); 269 ino = dirlookup(name); 270 if (ino == 0) 271 continue; 272 if (mflag) 273 pathcheck(name); 274 treescan(name, ino, addfile); 275 } 276 createfiles(); 277 createlinks(); 278 setdirmodes(0); 279 if (dflag) 280 checkrestore(); 281 break; 282 } 283 exit(0); 284 /* NOTREACHED */ 285 } 286 287 static void 288 usage() 289 { 290 291 (void)fprintf(stderr, "usage: restore -i [-chmvy] [-b blocksize] [-f file] [-s fileno]\n"); 292 (void)fprintf(stderr, " restore -R [-cvy] [-b blocksize] [-f file] [-s fileno]\n"); 293 (void)fprintf(stderr, " restore -r [-cvy] [-b blocksize] [-f file] [-s fileno]\n"); 294 (void)fprintf(stderr, " restore -t [-chvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n"); 295 (void)fprintf(stderr, " restore -x [-chmvy] [-b blocksize] [-f file] [-s fileno] [file ...]\n"); 296 exit(1); 297 } 298 299 /* 300 * obsolete -- 301 * Change set of key letters and ordered arguments into something 302 * getopt(3) will like. 303 */ 304 static void 305 obsolete(argcp, argvp) 306 int *argcp; 307 char **argvp[]; 308 { 309 int argc, flags; 310 char *ap, **argv, *flagsp, **nargv, *p; 311 312 /* Setup. */ 313 argv = *argvp; 314 argc = *argcp; 315 316 /* Return if no arguments or first argument has leading dash. */ 317 ap = argv[1]; 318 if (argc == 1 || *ap == '-') 319 return; 320 321 /* Allocate space for new arguments. */ 322 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 323 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 324 err(1, NULL); 325 326 *nargv++ = *argv; 327 argv += 2; 328 329 for (flags = 0; *ap; ++ap) { 330 switch (*ap) { 331 case 'b': 332 case 'f': 333 case 's': 334 if (*argv == NULL) { 335 warnx("option requires an argument -- %c", *ap); 336 usage(); 337 } 338 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 339 err(1, NULL); 340 nargv[0][0] = '-'; 341 nargv[0][1] = *ap; 342 (void)strcpy(&nargv[0][2], *argv); 343 ++argv; 344 ++nargv; 345 break; 346 default: 347 if (!flags) { 348 *p++ = '-'; 349 flags = 1; 350 } 351 *p++ = *ap; 352 break; 353 } 354 } 355 356 /* Terminate flags. */ 357 if (flags) { 358 *p = '\0'; 359 *nargv++ = flagsp; 360 } 361 362 /* Copy remaining arguments. */ 363 while (*nargv++ = *argv++); 364 365 /* Update argument count. */ 366 *argcp = nargv - *argvp - 1; 367 } 368
Indexes created Mon Sep 22 21:09:42 GMT 2025