1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char copyright[] = 10 "@(#) Copyright (c) 1983, 1993\n\ 11 The Regents of the University of California. All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 09/13/94"; 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 <err.h> 26 #include <errno.h> 27 #include <signal.h> 28 #include <stdio.h> 29 #include <stdlib.h> 30 #include <string.h> 31 32 #include "pathnames.h" 33 #include "restore.h" 34 #include "extern.h" 35 36 int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0; 37 int hflag = 1, mflag = 1, Nflag = 0; 38 char command = '\0'; 39 long dumpnum = 1; 40 long volno = 0; 41 long ntrec; 42 char *dumpmap; 43 char *usedinomap; 44 ino_t maxino; 45 time_t dumptime; 46 time_t dumpdate; 47 FILE *terminal; 48 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 errx(1, "illegal blocksize -- %s", optarg); 75 if (ntrec <= 0) 76 errx(1, "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 errx(1, 97 "%c and %c options are mutually exclusive", 98 ch, command); 99 command = ch; 100 break; 101 case 'm': 102 mflag = 0; 103 break; 104 case 'N': 105 Nflag = 1; 106 break; 107 case 's': 108 /* Dumpnum (skip to) for multifile dump tapes. */ 109 dumpnum = strtol(optarg, &p, 10); 110 if (*p) 111 errx(1, "illegal dump number -- %s", optarg); 112 if (dumpnum <= 0) 113 errx(1, "dump number must be greater than 0"); 114 break; 115 case 'v': 116 vflag = 1; 117 break; 118 case 'y': 119 yflag = 1; 120 break; 121 default: 122 usage(); 123 } 124 argc -= optind; 125 argv += optind; 126 127 if (command == '\0') 128 errx(1, "none of i, R, r, t or x options specified"); 129 130 if (signal(SIGINT, onintr) == SIG_IGN) 131 (void) signal(SIGINT, SIG_IGN); 132 if (signal(SIGTERM, onintr) == SIG_IGN) 133 (void) signal(SIGTERM, SIG_IGN); 134 setlinebuf(stderr); 135 136 setinput(inputdev); 137 138 if (argc == 0) { 139 argc = 1; 140 *--argv = "."; 141 } 142 143 switch (command) { 144 /* 145 * Interactive mode. 146 */ 147 case 'i': 148 setup(); 149 extractdirs(1); 150 initsymtable(NULL); 151 runcmdshell(); 152 break; 153 /* 154 * Incremental restoration of a file system. 155 */ 156 case 'r': 157 setup(); 158 if (dumptime > 0) { 159 /* 160 * This is an incremental dump tape. 161 */ 162 vprintf(stdout, "Begin incremental restore\n"); 163 initsymtable(symtbl); 164 extractdirs(1); 165 removeoldleaves(); 166 vprintf(stdout, "Calculate node updates.\n"); 167 treescan(".", ROOTINO, nodeupdates); 168 findunreflinks(); 169 removeoldnodes(); 170 } else { 171 /* 172 * This is a level zero dump tape. 173 */ 174 vprintf(stdout, "Begin level 0 restore\n"); 175 initsymtable((char *)0); 176 extractdirs(1); 177 vprintf(stdout, "Calculate extraction list.\n"); 178 treescan(".", ROOTINO, nodeupdates); 179 } 180 createleaves(symtbl); 181 createlinks(); 182 setdirmodes(FORCE); 183 checkrestore(); 184 if (dflag) { 185 vprintf(stdout, "Verify the directory structure\n"); 186 treescan(".", ROOTINO, verifyfile); 187 } 188 dumpsymtable(symtbl, (long)1); 189 break; 190 /* 191 * Resume an incremental file system restoration. 192 */ 193 case 'R': 194 initsymtable(symtbl); 195 skipmaps(); 196 skipdirs(); 197 createleaves(symtbl); 198 createlinks(); 199 setdirmodes(FORCE); 200 checkrestore(); 201 dumpsymtable(symtbl, (long)1); 202 break; 203 /* 204 * List contents of tape. 205 */ 206 case 't': 207 setup(); 208 extractdirs(0); 209 initsymtable((char *)0); 210 while (argc--) { 211 canon(*argv++, name); 212 ino = dirlookup(name); 213 if (ino == 0) 214 continue; 215 treescan(name, ino, listfile); 216 } 217 break; 218 /* 219 * Batch extraction of tape contents. 220 */ 221 case 'x': 222 setup(); 223 extractdirs(1); 224 initsymtable((char *)0); 225 while (argc--) { 226 canon(*argv++, name); 227 ino = dirlookup(name); 228 if (ino == 0) 229 continue; 230 if (mflag) 231 pathcheck(name); 232 treescan(name, ino, addfile); 233 } 234 createfiles(); 235 createlinks(); 236 setdirmodes(0); 237 if (dflag) 238 checkrestore(); 239 break; 240 } 241 done(0); 242 /* NOTREACHED */ 243 } 244 245 static void 246 usage() 247 { 248 (void)fprintf(stderr, "usage:\t%s%s%s%s%s", 249 "restore tfhsvy [file ...]\n", 250 "\trestore xfhmsvy [file ...]\n", 251 "\trestore ifhmsvy\n", 252 "\trestore rfsvy\n", 253 "\trestore Rfsvy\n"); 254 done(1); 255 } 256 257 /* 258 * obsolete -- 259 * Change set of key letters and ordered arguments into something 260 * getopt(3) will like. 261 */ 262 static void 263 obsolete(argcp, argvp) 264 int *argcp; 265 char **argvp[]; 266 { 267 int argc, flags; 268 char *ap, **argv, *flagsp, **nargv, *p; 269 270 /* Setup. */ 271 argv = *argvp; 272 argc = *argcp; 273 274 /* Return if no arguments or first argument has leading dash. */ 275 ap = argv[1]; 276 if (argc == 1 || *ap == '-') 277 return; 278 279 /* Allocate space for new arguments. */ 280 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL || 281 (p = flagsp = malloc(strlen(ap) + 2)) == NULL) 282 err(1, NULL); 283 284 *nargv++ = *argv; 285 argv += 2; 286 287 for (flags = 0; *ap; ++ap) { 288 switch(*ap) { 289 case 'b': 290 case 'f': 291 case 's': 292 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL) 293 err(1, NULL); 294 nargv[0][0] = '-'; 295 nargv[0][1] = *ap; 296 (void)strcpy(&nargv[0][2], *argv); 297 if (*argv != NULL) 298 ++argv; 299 ++nargv; 300 break; 301 default: 302 if (!flags) { 303 *p++ = '-'; 304 flags = 1; 305 } 306 *p++ = *ap; 307 break; 308 } 309 } 310 311 /* Terminate flags. */ 312 if (flags) { 313 *p = '\0'; 314 *nargv++ = flagsp; 315 } 316 317 /* Copy remaining arguments. */ 318 while (*nargv++ = *argv++); 319 } 320