1 /* 2 * Copyright (c) 1983 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 char copyright[] = 10 "@(#) Copyright (c) 1983 The Regents of the University of California.\n\ 11 All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)main.c 5.11 (Berkeley) 10/16/92"; 16 #endif /* not lint */ 17 18 #include <sys/param.h> 19 #include <sys/time.h> 20 21 #include <ufs/ffs/fs.h> 22 #include <ufs/ufs/dinode.h> 23 #include <protocols/dumprestore.h> 24 25 #include <errno.h> 26 #include <signal.h> 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <string.h> 30 31 #include "pathnames.h" 32 #include "restore.h" 33 #include "extern.h" 34 35 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 36 int hflag = 1, mflag = 1, Nflag = 0; 37 char command = '\0'; 38 long dumpnum = 1; 39 long volno = 0; 40 long ntrec; 41 char *dumpmap; 42 char *clrimap; 43 ino_t maxino; 44 time_t dumptime; 45 time_t dumpdate; 46 FILE *terminal; 47 48 static void err __P((const char *, ...)); 49 static void obsolete __P((int *, char **[])); 50 static void usage __P((void)); 51 52 int 53 main(argc, argv) 54 int argc; 55 char *argv[]; 56 { 57 int ch; 58 ino_t ino; 59 char *inputdev = _PATH_DEFTAPE; 60 char *symtbl = "./restoresymtable"; 61 char *p, name[MAXPATHLEN]; 62 63 if (argc < 2) 64 usage(); 65 66 obsolete(&argc, &argv); 67 while ((ch = getopt(argc, argv, "b:cdf:himNRrs:tvxy")) != EOF) 68 switch(ch) { 69 case 'b': 70 /* Change default tape blocksize. */ 71 bflag = 1; 72 ntrec = strtol(optarg, &p, 10); 73 if (*p) 74 err("illegal blocksize -- %s", optarg); 75 if (ntrec <= 0) 76 err("block size must be greater than 0"); 77 break; 78 case 'c': 79 cvtflag = 1; 80 break; 81 case 'd': 82 dflag = 1; 83 break; 84 case 'f': 85 inputdev = optarg; 86 break; 87 case 'h': 88 hflag = 0; 89 break; 90 case 'i': 91 case 'R': 92 case 'r': 93 case 't': 94 case 'x': 95 if (command != '\0') 96 err("%c and %c options are mutually exclusive", 97 ch, command); 98 command = ch; 99 break; 100 case 'm': 101 mflag = 0; 102 break; 103 case 'N': 104 Nflag = 1; 105 break; 106 case 's': 107 /* Dumpnum (skip to) for multifile dump tapes. */ 108 dumpnum = strtol(optarg, &p, 10); 109 if (*p) 110 err("illegal dump number -- %s", optarg); 111 if (dumpnum <= 0) 112 err("dump number must be greater than 0"); 113 break; 114 case 'v': 115 vflag = 1; 116 break; 117 case 'y': 118 yflag = 1; 119 break; 120 default: 121 usage(); 122 } 123 argc -= optind; 124 argv += optind; 125 126 if (command == '\0') 127 err("none of i, R, r, t or x options specified"); 128 129 if (signal(SIGINT, onintr) == SIG_IGN) 130 (void) signal(SIGINT, SIG_IGN); 131 if (signal(SIGTERM, onintr) == SIG_IGN) 132 (void) signal(SIGTERM, SIG_IGN); 133 setlinebuf(stderr); 134 135 setinput(inputdev); 136 137 if (argc == 0) { 138 argc = 1; 139 *--argv = "."; 140 } 141 142 switch (command) { 143 /* 144 * Interactive mode. 145 */ 146 case 'i': 147 setup(); 148 extractdirs(1); 149 initsymtable(NULL); 150 runcmdshell(); 151 break; 152 /* 153 * Incremental restoration of a file system. 154 */ 155 case 'r': 156 setup(); 157 if (dumptime > 0) { 158 /* 159 * This is an incremental dump tape. 160 */ 161 vprintf(stdout, "Begin incremental restore\n"); 162 initsymtable(symtbl); 163 extractdirs(1); 164 removeoldleaves(); 165 vprintf(stdout, "Calculate node updates.\n"); 166 treescan(".", ROOTINO, nodeupdates); 167 findunreflinks(); 168 removeoldnodes(); 169 } else { 170 /* 171 * This is a level zero dump tape. 172 */ 173 vprintf(stdout, "Begin level 0 restore\n"); 174 initsymtable((char *)0); 175 extractdirs(1); 176 vprintf(stdout, "Calculate extraction list.\n"); 177 treescan(".", ROOTINO, nodeupdates); 178 } 179 createleaves(symtbl); 180 createlinks(); 181 setdirmodes(FORCE); 182 checkrestore(); 183 if (dflag) { 184 vprintf(stdout, "Verify the directory structure\n"); 185 treescan(".", ROOTINO, verifyfile); 186 } 187 dumpsymtable(symtbl, (long)1); 188 break; 189 /* 190 * Resume an incremental file system restoration. 191 */ 192 case 'R': 193 initsymtable(symtbl); 194 skipmaps(); 195 skipdirs(); 196 createleaves(symtbl); 197 createlinks(); 198 setdirmodes(FORCE); 199 checkrestore(); 200 dumpsymtable(symtbl, (long)1); 201 break; 202 /* 203 * List contents of tape. 204 */ 205 case 't': 206 setup(); 207 extractdirs(0); 208 initsymtable((char *)0); 209 while (argc--) { 210 canon(*argv++, name); 211 ino = dirlookup(name); 212 if (ino == 0) 213 continue; 214 treescan(name, ino, listfile); 215 } 216 break; 217 /* 218 * Batch extraction of tape contents. 219 */ 220 case 'x': 221 setup(); 222 extractdirs(1); 223 initsymtable((char *)0); 224 while (argc--) { 225 canon(*argv++, name); 226 ino = dirlookup(name); 227 if (ino == 0) 228 continue; 229 if (mflag) 230 pathcheck(name); 231 treescan(name, ino, addfile); 232 } 233 createfiles(); 234 createlinks(); 235 setdirmodes(0); 236 if (dflag) 237 checkrestore(); 238 break; 239 } 240 done(0); 241 /* NOTREACHED */ 242 } 243 244 void 245 usage() 246 { 247 (void)fprintf(stderr, "usage:\t%s%s%s%s%s", 248 "restore tfhsvy [file ...]\n", 249 "\trestore xfhmsvy [file ...]\n", 250 "\trestore ifhmsvy\n", 251 "\trestore rfsvy\n", 252 "\trestore Rfsvy\n"); 253 done(1); 254 } 255 256 /* 257 * obsolete -- 258 * Change set of key letters and ordered arguments into something 259 * getopt(3) will like. 260 */ 261 static void 262 obsolete(argcp, argvp) 263 int *argcp; 264 char **argvp[]; 265 { 266 int argc, flags; 267 char *ap, **argv, *flagsp, **nargv, *p; 268 269 /* Setup. */ 270 argv = *argvp; 271 argc = *argcp; 272 273 /* Return if no arguments or first argument has leading dash. */ 274 ap = argv[1]; 275 if (argc == 1 || *ap == '-') 276 return; 277 278 /* Allocate space for new arguments. */ 279 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 280 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 281 err("%s", strerror(errno)); 282 283 *nargv++ = *argv; 284 argv += 2; 285 286 for (flags = 0; *ap; ++ap) { 287 switch(*ap) { 288 case 'b': 289 case 'f': 290 case 's': 291 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 292 err("%s", strerror(errno)); 293 nargv[0][0] = '-'; 294 nargv[0][1] = *ap; 295 (void)strcpy(&nargv[0][2], *argv); 296 if (*argv != NULL) 297 ++argv; 298 ++nargv; 299 break; 300 default: 301 if (!flags) { 302 *p++ = '-'; 303 flags = 1; 304 } 305 *p++ = *ap; 306 break; 307 } 308 } 309 310 /* Terminate flags. */ 311 if (flags) { 312 *p = '\0'; 313 *nargv++ = flagsp; 314 } 315 316 /* Copy remaining arguments. */ 317 while (*nargv++ = *argv++); 318 } 319 320 #if __STDC__ 321 #include <stdarg.h> 322 #else 323 #include <varargs.h> 324 #endif 325 326 void 327 #if __STDC__ 328 err(const char *fmt, ...) 329 #else 330 err(fmt, va_alist) 331 char *fmt; 332 va_dcl 333 #endif 334 { 335 va_list ap; 336 #if __STDC__ 337 va_start(ap, fmt); 338 #else 339 va_start(ap); 340 #endif 341 (void)fprintf(stderr, "restore: "); 342 (void)vfprintf(stderr, fmt, ap); 343 va_end(ap); 344 (void)fprintf(stderr, "\n"); 345 exit(1); 346 /* NOTREACHED */ 347 } 348