dirs.c revision 1.21
1 /* $NetBSD: dirs.c,v 1.21 1996/11/30 18:04:45 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * (c) UNIX System Laboratories, Inc. 7 * All or some portions of this file are derived from material licensed 8 * to the University of California by American Telephone and Telegraph 9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 10 * the permission of UNIX System Laboratories, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 */ 40 41 #ifndef lint 42 #if 0 43 static char sccsid[] = "@(#)dirs.c 8.5 (Berkeley) 8/31/94"; 44 #else 45 static char rcsid[] = "$NetBSD: dirs.c,v 1.21 1996/11/30 18:04:45 cgd Exp $"; 46 #endif 47 #endif /* not lint */ 48 49 #include <sys/param.h> 50 #include <sys/file.h> 51 #include <sys/stat.h> 52 #include <sys/time.h> 53 54 #include <ufs/ffs/fs.h> 55 #include <ufs/ufs/dinode.h> 56 #include <ufs/ufs/dir.h> 57 #include <protocols/dumprestore.h> 58 59 #include <errno.h> 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <unistd.h> 64 65 #include <machine/endian.h> 66 67 #include "pathnames.h" 68 #include "restore.h" 69 #include "extern.h" 70 71 /* 72 * Symbol table of directories read from tape. 73 */ 74 #define HASHSIZE 1000 75 #define INOHASH(val) (val % HASHSIZE) 76 struct inotab { 77 struct inotab *t_next; 78 ino_t t_ino; 79 int32_t t_seekpt; 80 int32_t t_size; 81 }; 82 static struct inotab *inotab[HASHSIZE]; 83 84 /* 85 * Information retained about directories. 86 */ 87 struct modeinfo { 88 ino_t ino; 89 struct timeval timep[2]; 90 mode_t mode; 91 uid_t uid; 92 gid_t gid; 93 int flags; 94 }; 95 96 /* 97 * Definitions for library routines operating on directories. 98 */ 99 #undef DIRBLKSIZ 100 #define DIRBLKSIZ 1024 101 struct rstdirdesc { 102 int dd_fd; 103 int32_t dd_loc; 104 int32_t dd_size; 105 char dd_buf[DIRBLKSIZ]; 106 }; 107 108 /* 109 * Global variables for this file. 110 */ 111 static long seekpt; 112 static FILE *df, *mf; 113 static RST_DIR *dirp; 114 static char dirfile[MAXPATHLEN] = "#"; /* No file */ 115 static char modefile[MAXPATHLEN] = "#"; /* No file */ 116 static char dot[2] = "."; /* So it can be modified */ 117 118 /* 119 * Format of old style directories. 120 */ 121 #define ODIRSIZ 14 122 struct odirect { 123 u_short d_ino; 124 char d_name[ODIRSIZ]; 125 }; 126 127 static struct inotab *allocinotab __P((ino_t, struct dinode *, long)); 128 static void dcvt __P((struct odirect *, struct direct *)); 129 static void flushent __P((void)); 130 static struct inotab *inotablookup __P((ino_t)); 131 static RST_DIR *opendirfile __P((const char *)); 132 static void putdir __P((char *, long)); 133 static void putent __P((struct direct *)); 134 static void rst_seekdir __P((RST_DIR *, long, long)); 135 static long rst_telldir __P((RST_DIR *)); 136 static struct direct *searchdir __P((ino_t, char *)); 137 138 /* 139 * Extract directory contents, building up a directory structure 140 * on disk for extraction by name. 141 * If genmode is requested, save mode, owner, and times for all 142 * directories on the tape. 143 */ 144 void 145 extractdirs(genmode) 146 int genmode; 147 { 148 register int i; 149 register struct dinode *ip; 150 struct inotab *itp; 151 struct direct nulldir; 152 153 vprintf(stdout, "Extract directories from tape\n"); 154 (void) snprintf(dirfile, sizeof(dirfile), "%s/rstdir%d", 155 _PATH_TMP, dumpdate); 156 if (command != 'r' && command != 'R') { 157 (void) snprintf(dirfile, sizeof(dirfile), "%s/rstdir%d-XXXXXX", 158 _PATH_TMP, dumpdate); 159 if (mktemp(dirfile) == NULL) { 160 fprintf(stderr, 161 "restore: %s - cannot mktemp directory temporary\n", 162 dirfile); 163 exit(1); 164 } 165 } 166 df = fopen(dirfile, "w"); 167 if (df == NULL) { 168 fprintf(stderr, 169 "restore: %s - cannot create directory temporary\n", 170 dirfile); 171 fprintf(stderr, "fopen: %s\n", strerror(errno)); 172 exit(1); 173 } 174 if (genmode != 0) { 175 (void) snprintf(modefile, sizeof(modefile), "%s/rstmode%d", 176 _PATH_TMP, dumpdate); 177 if (command != 'r' && command != 'R') { 178 (void) snprintf(modefile, sizeof(modefile), 179 "%s/rstmode%d-XXXXXX", _PATH_TMP, dumpdate); 180 if (mktemp(modefile) == NULL) { 181 fprintf(stderr, 182 "restore: %s - cannot mktemp " 183 "directory temporary\n", dirfile); 184 exit(1); 185 } 186 } 187 mf = fopen(modefile, "w"); 188 if (mf == NULL) { 189 fprintf(stderr, 190 "restore: %s - cannot create modefile \n", 191 modefile); 192 fprintf(stderr, "fopen: %s\n", strerror(errno)); 193 exit(1); 194 } 195 } 196 nulldir.d_ino = 0; 197 nulldir.d_type = DT_DIR; 198 nulldir.d_namlen = 1; 199 (void) strcpy(nulldir.d_name, "/"); 200 nulldir.d_reclen = DIRSIZ(0, &nulldir); 201 for (;;) { 202 curfile.name = "<directory file - name unknown>"; 203 curfile.action = USING; 204 ip = curfile.dip; 205 if (ip == NULL || (ip->di_mode & IFMT) != IFDIR) { 206 (void) fclose(df); 207 dirp = opendirfile(dirfile); 208 if (dirp == NULL) 209 fprintf(stderr, "opendirfile: %s\n", 210 strerror(errno)); 211 if (mf != NULL) 212 (void) fclose(mf); 213 i = dirlookup(dot); 214 if (i == 0) 215 panic("Root directory is not on tape\n"); 216 return; 217 } 218 itp = allocinotab(curfile.ino, ip, seekpt); 219 getfile(putdir, xtrnull); 220 putent(&nulldir); 221 flushent(); 222 itp->t_size = seekpt - itp->t_seekpt; 223 } 224 } 225 226 /* 227 * skip over all the directories on the tape 228 */ 229 void 230 skipdirs() 231 { 232 233 while ((curfile.dip->di_mode & IFMT) == IFDIR) { 234 skipfile(); 235 } 236 } 237 238 /* 239 * Recursively find names and inumbers of all files in subtree 240 * pname and pass them off to be processed. 241 */ 242 void 243 treescan(pname, ino, todo) 244 char *pname; 245 ino_t ino; 246 long (*todo) __P((char *, ino_t, int)); 247 { 248 register struct inotab *itp; 249 register struct direct *dp; 250 int namelen; 251 long bpt; 252 char locname[MAXPATHLEN + 1]; 253 254 itp = inotablookup(ino); 255 if (itp == NULL) { 256 /* 257 * Pname is name of a simple file or an unchanged directory. 258 */ 259 (void) (*todo)(pname, ino, LEAF); 260 return; 261 } 262 /* 263 * Pname is a dumped directory name. 264 */ 265 if ((*todo)(pname, ino, NODE) == FAIL) 266 return; 267 /* 268 * begin search through the directory 269 * skipping over "." and ".." 270 */ 271 (void) strncpy(locname, pname, MAXPATHLEN); 272 (void) strncat(locname, "/", MAXPATHLEN); 273 namelen = strlen(locname); 274 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 275 dp = rst_readdir(dirp); /* "." */ 276 if (dp != NULL && strcmp(dp->d_name, ".") == 0) 277 dp = rst_readdir(dirp); /* ".." */ 278 else 279 fprintf(stderr, "Warning: `.' missing from directory %s\n", 280 pname); 281 if (dp != NULL && strcmp(dp->d_name, "..") == 0) 282 dp = rst_readdir(dirp); /* first real entry */ 283 else 284 fprintf(stderr, "Warning: `..' missing from directory %s\n", 285 pname); 286 bpt = rst_telldir(dirp); 287 /* 288 * a zero inode signals end of directory 289 */ 290 while (dp != NULL) { 291 locname[namelen] = '\0'; 292 if (namelen + dp->d_namlen >= MAXPATHLEN) { 293 fprintf(stderr, "%s%s: name exceeds %d char\n", 294 locname, dp->d_name, MAXPATHLEN); 295 } else { 296 (void) strncat(locname, dp->d_name, (int)dp->d_namlen); 297 treescan(locname, dp->d_ino, todo); 298 rst_seekdir(dirp, bpt, itp->t_seekpt); 299 } 300 dp = rst_readdir(dirp); 301 bpt = rst_telldir(dirp); 302 } 303 } 304 305 /* 306 * Lookup a pathname which is always assumed to start from the ROOTINO. 307 */ 308 struct direct * 309 pathsearch(pathname) 310 const char *pathname; 311 { 312 ino_t ino; 313 struct direct *dp; 314 char *path, *name, buffer[MAXPATHLEN]; 315 316 strcpy(buffer, pathname); 317 path = buffer; 318 ino = ROOTINO; 319 while (*path == '/') 320 path++; 321 dp = NULL; 322 while ((name = strsep(&path, "/")) != NULL && *name != NULL) { 323 if ((dp = searchdir(ino, name)) == NULL) 324 return (NULL); 325 ino = dp->d_ino; 326 } 327 return (dp); 328 } 329 330 /* 331 * Lookup the requested name in directory inum. 332 * Return its inode number if found, zero if it does not exist. 333 */ 334 static struct direct * 335 searchdir(inum, name) 336 ino_t inum; 337 char *name; 338 { 339 register struct direct *dp; 340 register struct inotab *itp; 341 int len; 342 343 itp = inotablookup(inum); 344 if (itp == NULL) 345 return (NULL); 346 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 347 len = strlen(name); 348 do { 349 dp = rst_readdir(dirp); 350 if (dp == NULL) 351 return (NULL); 352 } while (dp->d_namlen != len || strncmp(dp->d_name, name, len) != 0); 353 return (dp); 354 } 355 356 /* 357 * Put the directory entries in the directory file 358 */ 359 static void 360 putdir(buf, size) 361 char *buf; 362 long size; 363 { 364 struct direct cvtbuf; 365 register struct odirect *odp; 366 struct odirect *eodp; 367 register struct direct *dp; 368 long loc, i; 369 370 if (cvtflag) { 371 eodp = (struct odirect *)&buf[size]; 372 for (odp = (struct odirect *)buf; odp < eodp; odp++) 373 if (odp->d_ino != 0) { 374 dcvt(odp, &cvtbuf); 375 putent(&cvtbuf); 376 } 377 } else { 378 for (loc = 0; loc < size; ) { 379 dp = (struct direct *)(buf + loc); 380 if (Bcvt) 381 swabst((u_char *)"ls", (u_char *) dp); 382 if (oldinofmt && dp->d_ino != 0) { 383 # if BYTE_ORDER == BIG_ENDIAN 384 if (Bcvt) 385 dp->d_namlen = dp->d_type; 386 # else 387 if (!Bcvt) 388 dp->d_namlen = dp->d_type; 389 # endif 390 dp->d_type = DT_UNKNOWN; 391 } 392 i = DIRBLKSIZ - (loc & (DIRBLKSIZ - 1)); 393 if ((dp->d_reclen & 0x3) != 0 || 394 dp->d_reclen > i || 395 dp->d_reclen < DIRSIZ(0, dp) || 396 dp->d_namlen > NAME_MAX) { 397 vprintf(stdout, "Mangled directory: "); 398 if ((dp->d_reclen & 0x3) != 0) 399 vprintf(stdout, 400 "reclen not multiple of 4 "); 401 if (dp->d_reclen < DIRSIZ(0, dp)) 402 vprintf(stdout, 403 "reclen less than DIRSIZ (%d < %d) ", 404 dp->d_reclen, DIRSIZ(0, dp)); 405 if (dp->d_namlen > NAME_MAX) 406 vprintf(stdout, 407 "reclen name too big (%d > %d) ", 408 dp->d_namlen, NAME_MAX); 409 vprintf(stdout, "\n"); 410 loc += i; 411 continue; 412 } 413 loc += dp->d_reclen; 414 if (dp->d_ino != 0) { 415 putent(dp); 416 } 417 } 418 } 419 } 420 421 /* 422 * These variables are "local" to the following two functions. 423 */ 424 char dirbuf[DIRBLKSIZ]; 425 long dirloc = 0; 426 long prev = 0; 427 428 /* 429 * add a new directory entry to a file. 430 */ 431 static void 432 putent(dp) 433 struct direct *dp; 434 { 435 dp->d_reclen = DIRSIZ(0, dp); 436 if (dirloc + dp->d_reclen > DIRBLKSIZ) { 437 ((struct direct *)(dirbuf + prev))->d_reclen = 438 DIRBLKSIZ - prev; 439 (void) fwrite(dirbuf, 1, DIRBLKSIZ, df); 440 dirloc = 0; 441 } 442 memcpy(dirbuf + dirloc, dp, (long)dp->d_reclen); 443 prev = dirloc; 444 dirloc += dp->d_reclen; 445 } 446 447 /* 448 * flush out a directory that is finished. 449 */ 450 static void 451 flushent() 452 { 453 ((struct direct *)(dirbuf + prev))->d_reclen = DIRBLKSIZ - prev; 454 (void) fwrite(dirbuf, (int)dirloc, 1, df); 455 seekpt = ftell(df); 456 dirloc = 0; 457 } 458 459 static void 460 dcvt(odp, ndp) 461 register struct odirect *odp; 462 register struct direct *ndp; 463 { 464 465 memset(ndp, 0, (long)(sizeof *ndp)); 466 ndp->d_ino = odp->d_ino; 467 ndp->d_type = DT_UNKNOWN; 468 (void) strncpy(ndp->d_name, odp->d_name, ODIRSIZ); 469 ndp->d_namlen = strlen(ndp->d_name); 470 ndp->d_reclen = DIRSIZ(0, ndp); 471 } 472 473 /* 474 * Seek to an entry in a directory. 475 * Only values returned by rst_telldir should be passed to rst_seekdir. 476 * This routine handles many directories in a single file. 477 * It takes the base of the directory in the file, plus 478 * the desired seek offset into it. 479 */ 480 static void 481 rst_seekdir(dirp, loc, base) 482 register RST_DIR *dirp; 483 long loc, base; 484 { 485 486 if (loc == rst_telldir(dirp)) 487 return; 488 loc -= base; 489 if (loc < 0) 490 fprintf(stderr, "bad seek pointer to rst_seekdir %d\n", loc); 491 (void) lseek(dirp->dd_fd, base + (loc & ~(DIRBLKSIZ - 1)), SEEK_SET); 492 dirp->dd_loc = loc & (DIRBLKSIZ - 1); 493 if (dirp->dd_loc != 0) 494 dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ); 495 } 496 497 /* 498 * get next entry in a directory. 499 */ 500 struct direct * 501 rst_readdir(dirp) 502 register RST_DIR *dirp; 503 { 504 register struct direct *dp; 505 506 for (;;) { 507 if (dirp->dd_loc == 0) { 508 dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, 509 DIRBLKSIZ); 510 if (dirp->dd_size <= 0) { 511 dprintf(stderr, "error reading directory\n"); 512 return (NULL); 513 } 514 } 515 if (dirp->dd_loc >= dirp->dd_size) { 516 dirp->dd_loc = 0; 517 continue; 518 } 519 dp = (struct direct *)(dirp->dd_buf + dirp->dd_loc); 520 if (dp->d_reclen == 0 || 521 dp->d_reclen > DIRBLKSIZ + 1 - dirp->dd_loc) { 522 dprintf(stderr, "corrupted directory: bad reclen %d\n", 523 dp->d_reclen); 524 return (NULL); 525 } 526 dirp->dd_loc += dp->d_reclen; 527 if (dp->d_ino == 0 && strcmp(dp->d_name, "/") == 0) 528 return (NULL); 529 if (dp->d_ino >= maxino) { 530 dprintf(stderr, "corrupted directory: bad inum %d\n", 531 dp->d_ino); 532 continue; 533 } 534 return (dp); 535 } 536 } 537 538 /* 539 * Simulate the opening of a directory 540 */ 541 RST_DIR * 542 rst_opendir(name) 543 const char *name; 544 { 545 struct inotab *itp; 546 RST_DIR *dirp; 547 ino_t ino; 548 549 if ((ino = dirlookup(name)) > 0 && 550 (itp = inotablookup(ino)) != NULL) { 551 dirp = opendirfile(dirfile); 552 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 553 return (dirp); 554 } 555 return (NULL); 556 } 557 558 /* 559 * In our case, there is nothing to do when closing a directory. 560 */ 561 void 562 rst_closedir(dirp) 563 RST_DIR *dirp; 564 { 565 566 (void)close(dirp->dd_fd); 567 free(dirp); 568 return; 569 } 570 571 /* 572 * Simulate finding the current offset in the directory. 573 */ 574 static long 575 rst_telldir(dirp) 576 RST_DIR *dirp; 577 { 578 return ((long)lseek(dirp->dd_fd, 579 (off_t)0, SEEK_CUR) - dirp->dd_size + dirp->dd_loc); 580 } 581 582 /* 583 * Open a directory file. 584 */ 585 static RST_DIR * 586 opendirfile(name) 587 const char *name; 588 { 589 register RST_DIR *dirp; 590 register int fd; 591 592 if ((fd = open(name, O_RDONLY)) == -1) 593 return (NULL); 594 if ((dirp = malloc(sizeof(RST_DIR))) == NULL) { 595 (void)close(fd); 596 return (NULL); 597 } 598 dirp->dd_fd = fd; 599 dirp->dd_loc = 0; 600 return (dirp); 601 } 602 603 /* 604 * Set the mode, owner, and times for all new or changed directories 605 */ 606 void 607 setdirmodes(flags) 608 int flags; 609 { 610 FILE *mf; 611 struct modeinfo node; 612 struct entry *ep; 613 char *cp; 614 615 vprintf(stdout, "Set directory mode, owner, and times.\n"); 616 if (command == 'r' || command == 'R') 617 (void) snprintf(modefile, sizeof(modefile), "%s/rstmode%d", 618 _PATH_TMP, dumpdate); 619 if (modefile[0] == '#') { 620 panic("modefile not defined\n"); 621 fprintf(stderr, "directory mode, owner, and times not set\n"); 622 return; 623 } 624 mf = fopen(modefile, "r"); 625 if (mf == NULL) { 626 fprintf(stderr, "fopen: %s\n", strerror(errno)); 627 fprintf(stderr, "cannot open mode file %s\n", modefile); 628 fprintf(stderr, "directory mode, owner, and times not set\n"); 629 return; 630 } 631 clearerr(mf); 632 for (;;) { 633 (void) fread((char *)&node, 1, sizeof(struct modeinfo), mf); 634 if (feof(mf)) 635 break; 636 ep = lookupino(node.ino); 637 if (command == 'i' || command == 'x') { 638 if (ep == NULL) 639 continue; 640 if ((flags & FORCE) == 0 && ep->e_flags & EXISTED) { 641 ep->e_flags &= ~NEW; 642 continue; 643 } 644 if (node.ino == ROOTINO && 645 reply("set owner/mode for '.'") == FAIL) 646 continue; 647 } 648 if (ep == NULL) { 649 panic("cannot find directory inode %d\n", node.ino); 650 } else { 651 cp = myname(ep); 652 (void) chown(cp, node.uid, node.gid); 653 (void) chmod(cp, node.mode); 654 (void) chflags(cp, node.flags); 655 utimes(cp, node.timep); 656 ep->e_flags &= ~NEW; 657 } 658 } 659 if (ferror(mf)) 660 panic("error setting directory modes\n"); 661 (void) fclose(mf); 662 } 663 664 /* 665 * Generate a literal copy of a directory. 666 */ 667 int 668 genliteraldir(name, ino) 669 char *name; 670 ino_t ino; 671 { 672 register struct inotab *itp; 673 int ofile, dp, i, size; 674 char buf[BUFSIZ]; 675 676 itp = inotablookup(ino); 677 if (itp == NULL) 678 panic("Cannot find directory inode %d named %s\n", ino, name); 679 if ((ofile = open(name, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) { 680 fprintf(stderr, "%s: ", name); 681 (void) fflush(stderr); 682 fprintf(stderr, "cannot create file: %s\n", strerror(errno)); 683 return (FAIL); 684 } 685 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 686 dp = dup(dirp->dd_fd); 687 for (i = itp->t_size; i > 0; i -= BUFSIZ) { 688 size = i < BUFSIZ ? i : BUFSIZ; 689 if (read(dp, buf, (int) size) == -1) { 690 fprintf(stderr, 691 "write error extracting inode %d, name %s\n", 692 curfile.ino, curfile.name); 693 fprintf(stderr, "read: %s\n", strerror(errno)); 694 exit(1); 695 } 696 if (!Nflag && write(ofile, buf, (int) size) == -1) { 697 fprintf(stderr, 698 "write error extracting inode %d, name %s\n", 699 curfile.ino, curfile.name); 700 fprintf(stderr, "write: %s\n", strerror(errno)); 701 exit(1); 702 } 703 } 704 (void) close(dp); 705 (void) close(ofile); 706 return (GOOD); 707 } 708 709 /* 710 * Determine the type of an inode 711 */ 712 int 713 inodetype(ino) 714 ino_t ino; 715 { 716 struct inotab *itp; 717 718 itp = inotablookup(ino); 719 if (itp == NULL) 720 return (LEAF); 721 return (NODE); 722 } 723 724 /* 725 * Allocate and initialize a directory inode entry. 726 * If requested, save its pertinent mode, owner, and time info. 727 */ 728 static struct inotab * 729 allocinotab(ino, dip, seekpt) 730 ino_t ino; 731 struct dinode *dip; 732 long seekpt; 733 { 734 register struct inotab *itp; 735 struct modeinfo node; 736 737 itp = calloc(1, sizeof(struct inotab)); 738 if (itp == NULL) 739 panic("no memory directory table\n"); 740 itp->t_next = inotab[INOHASH(ino)]; 741 inotab[INOHASH(ino)] = itp; 742 itp->t_ino = ino; 743 itp->t_seekpt = seekpt; 744 if (mf == NULL) 745 return (itp); 746 node.ino = ino; 747 node.timep[0].tv_sec = dip->di_atime; 748 node.timep[0].tv_usec = dip->di_atimensec / 1000; 749 node.timep[1].tv_sec = dip->di_mtime; 750 node.timep[1].tv_usec = dip->di_mtimensec / 1000; 751 node.mode = dip->di_mode; 752 node.flags = dip->di_flags; 753 node.uid = dip->di_uid; 754 node.gid = dip->di_gid; 755 (void) fwrite((char *)&node, 1, sizeof(struct modeinfo), mf); 756 return (itp); 757 } 758 759 /* 760 * Look up an inode in the table of directories 761 */ 762 static struct inotab * 763 inotablookup(ino) 764 ino_t ino; 765 { 766 register struct inotab *itp; 767 768 for (itp = inotab[INOHASH(ino)]; itp != NULL; itp = itp->t_next) 769 if (itp->t_ino == ino) 770 return (itp); 771 return (NULL); 772 } 773 774 /* 775 * Clean up and exit 776 */ 777 void 778 cleanup() 779 { 780 781 closemt(); 782 if (modefile[0] != '#') 783 (void) unlink(modefile); 784 if (dirfile[0] != '#') 785 (void) unlink(dirfile); 786 } 787
Indexes created Thu Sep 25 16:09:42 GMT 2025