dirs.c revision 1.27
1 /* $NetBSD: dirs.c,v 1.27 1997/07/06 08:51:28 lukem 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 1.27 1997/07/06 08:51:28 lukem 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 <err.h> 60 #include <errno.h> 61 #include <paths.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <unistd.h> 66 67 #include <machine/endian.h> 68 69 #include "restore.h" 70 #include "extern.h" 71 72 /* 73 * Symbol table of directories read from tape. 74 */ 75 #define HASHSIZE 1000 76 #define INOHASH(val) (val % HASHSIZE) 77 struct inotab { 78 struct inotab *t_next; 79 ino_t t_ino; 80 int32_t t_seekpt; 81 int32_t t_size; 82 }; 83 static struct inotab *inotab[HASHSIZE]; 84 85 /* 86 * Information retained about directories. 87 */ 88 struct modeinfo { 89 ino_t ino; 90 struct timeval timep[2]; 91 mode_t mode; 92 uid_t uid; 93 gid_t gid; 94 int flags; 95 }; 96 97 /* 98 * Definitions for library routines operating on directories. 99 */ 100 #undef DIRBLKSIZ 101 #define DIRBLKSIZ 1024 102 struct rstdirdesc { 103 int dd_fd; 104 int32_t dd_loc; 105 int32_t dd_size; 106 char dd_buf[DIRBLKSIZ]; 107 }; 108 109 /* 110 * Global variables for this file. 111 */ 112 static long seekpt; 113 static FILE *df, *mf; 114 static RST_DIR *dirp; 115 static char dirfile[MAXPATHLEN] = "#"; /* No file */ 116 static char modefile[MAXPATHLEN] = "#"; /* No file */ 117 static char dot[2] = "."; /* So it can be modified */ 118 119 /* 120 * Format of old style directories. 121 */ 122 #define ODIRSIZ 14 123 struct odirect { 124 u_short d_ino; 125 char d_name[ODIRSIZ]; 126 }; 127 128 static struct inotab *allocinotab __P((ino_t, struct dinode *, long)); 129 static void dcvt __P((struct odirect *, struct direct *)); 130 static void flushent __P((void)); 131 static struct inotab *inotablookup __P((ino_t)); 132 static RST_DIR *opendirfile __P((const char *)); 133 static void putdir __P((char *, long)); 134 static void putent __P((struct direct *)); 135 static void rst_seekdir __P((RST_DIR *, long, long)); 136 static long rst_telldir __P((RST_DIR *)); 137 static struct direct *searchdir __P((ino_t, char *)); 138 139 /* 140 * Extract directory contents, building up a directory structure 141 * on disk for extraction by name. 142 * If genmode is requested, save mode, owner, and times for all 143 * directories on the tape. 144 */ 145 void 146 extractdirs(genmode) 147 int genmode; 148 { 149 int i, dfd, mfd; 150 struct dinode *ip; 151 struct inotab *itp; 152 struct direct nulldir; 153 154 vprintf(stdout, "Extract directories from tape\n"); 155 (void) snprintf(dirfile, sizeof(dirfile), "%s/rstdir%d", 156 tmpdir, (int)dumpdate); 157 if (command != 'r' && command != 'R') { 158 (void) snprintf(dirfile, sizeof(dirfile), "%s/rstdir%d-XXXXXX", 159 tmpdir, (int)dumpdate); 160 if ((dfd = mkstemp(dirfile)) == -1) 161 err(1, "cannot mkstemp temporary file %s", dirfile); 162 df = fdopen(dfd, "w"); 163 } 164 else 165 df = fopen(dirfile, "w"); 166 if (df == NULL) 167 err(1, "cannot open temporary file %s", dirfile); 168 169 if (genmode != 0) { 170 (void) snprintf(modefile, sizeof(modefile), "%s/rstmode%d", 171 tmpdir, (int)dumpdate); 172 if (command != 'r' && command != 'R') { 173 (void) snprintf(modefile, sizeof(modefile), 174 "%s/rstmode%d-XXXXXX", tmpdir, (int)dumpdate); 175 if ((mfd = mkstemp(modefile)) == -1) 176 err(1, "cannot mkstemp temporary file %s", 177 modefile); 178 mf = fdopen(mfd, "w"); 179 } 180 else 181 mf = fopen(modefile, "w"); 182 if (mf == NULL) 183 err(1, "cannot open temporary file %s", modefile); 184 } 185 nulldir.d_ino = 0; 186 nulldir.d_type = DT_DIR; 187 nulldir.d_namlen = 1; 188 (void) strcpy(nulldir.d_name, "/"); 189 nulldir.d_reclen = DIRSIZ(0, &nulldir); 190 for (;;) { 191 curfile.name = "<directory file - name unknown>"; 192 curfile.action = USING; 193 ip = curfile.dip; 194 if (ip == NULL || (ip->di_mode & IFMT) != IFDIR) { 195 (void) fclose(df); 196 dirp = opendirfile(dirfile); 197 if (dirp == NULL) 198 fprintf(stderr, "opendirfile: %s\n", 199 strerror(errno)); 200 if (mf != NULL) 201 (void) fclose(mf); 202 i = dirlookup(dot); 203 if (i == 0) 204 panic("Root directory is not on tape\n"); 205 return; 206 } 207 itp = allocinotab(curfile.ino, ip, seekpt); 208 getfile(putdir, xtrnull); 209 putent(&nulldir); 210 flushent(); 211 itp->t_size = seekpt - itp->t_seekpt; 212 } 213 } 214 215 /* 216 * skip over all the directories on the tape 217 */ 218 void 219 skipdirs() 220 { 221 222 while (curfile.dip && (curfile.dip->di_mode & IFMT) == IFDIR) { 223 skipfile(); 224 } 225 } 226 227 /* 228 * Recursively find names and inumbers of all files in subtree 229 * pname and pass them off to be processed. 230 */ 231 void 232 treescan(pname, ino, todo) 233 char *pname; 234 ino_t ino; 235 long (*todo) __P((char *, ino_t, int)); 236 { 237 struct inotab *itp; 238 struct direct *dp; 239 int namelen; 240 long bpt; 241 char locname[MAXPATHLEN + 1]; 242 243 itp = inotablookup(ino); 244 if (itp == NULL) { 245 /* 246 * Pname is name of a simple file or an unchanged directory. 247 */ 248 (void) (*todo)(pname, ino, LEAF); 249 return; 250 } 251 /* 252 * Pname is a dumped directory name. 253 */ 254 if ((*todo)(pname, ino, NODE) == FAIL) 255 return; 256 /* 257 * begin search through the directory 258 * skipping over "." and ".." 259 */ 260 (void) snprintf(locname, sizeof(locname), "%s/", pname); 261 namelen = strlen(locname); 262 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 263 dp = rst_readdir(dirp); /* "." */ 264 if (dp != NULL && strcmp(dp->d_name, ".") == 0) 265 dp = rst_readdir(dirp); /* ".." */ 266 else 267 fprintf(stderr, "Warning: `.' missing from directory %s\n", 268 pname); 269 if (dp != NULL && strcmp(dp->d_name, "..") == 0) 270 dp = rst_readdir(dirp); /* first real entry */ 271 else 272 fprintf(stderr, "Warning: `..' missing from directory %s\n", 273 pname); 274 bpt = rst_telldir(dirp); 275 /* 276 * a zero inode signals end of directory 277 */ 278 while (dp != NULL) { 279 locname[namelen] = '\0'; 280 if (namelen + dp->d_namlen >= sizeof(locname)) { 281 fprintf(stderr, "%s%s: name exceeds %d char\n", 282 locname, dp->d_name, sizeof(locname) - 1); 283 } else { 284 (void) strncat(locname, dp->d_name, (int)dp->d_namlen); 285 locname[namelen + dp->d_namlen] = '\0'; 286 treescan(locname, dp->d_ino, todo); 287 rst_seekdir(dirp, bpt, itp->t_seekpt); 288 } 289 dp = rst_readdir(dirp); 290 bpt = rst_telldir(dirp); 291 } 292 } 293 294 /* 295 * Lookup a pathname which is always assumed to start from the ROOTINO. 296 */ 297 struct direct * 298 pathsearch(pathname) 299 const char *pathname; 300 { 301 ino_t ino; 302 struct direct *dp; 303 char *path, *name, buffer[MAXPATHLEN]; 304 305 strcpy(buffer, pathname); 306 path = buffer; 307 ino = ROOTINO; 308 while (*path == '/') 309 path++; 310 dp = NULL; 311 while ((name = strsep(&path, "/")) != NULL && *name != '\0') { 312 if ((dp = searchdir(ino, name)) == NULL) 313 return (NULL); 314 ino = dp->d_ino; 315 } 316 return (dp); 317 } 318 319 /* 320 * Lookup the requested name in directory inum. 321 * Return its inode number if found, zero if it does not exist. 322 */ 323 static struct direct * 324 searchdir(inum, name) 325 ino_t inum; 326 char *name; 327 { 328 struct direct *dp; 329 struct inotab *itp; 330 int len; 331 332 itp = inotablookup(inum); 333 if (itp == NULL) 334 return (NULL); 335 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 336 len = strlen(name); 337 do { 338 dp = rst_readdir(dirp); 339 if (dp == NULL) 340 return (NULL); 341 } while (dp->d_namlen != len || strncmp(dp->d_name, name, len) != 0); 342 return (dp); 343 } 344 345 /* 346 * Put the directory entries in the directory file 347 */ 348 static void 349 putdir(buf, size) 350 char *buf; 351 long size; 352 { 353 struct direct cvtbuf; 354 struct odirect *odp; 355 struct odirect *eodp; 356 struct direct *dp; 357 long loc, i; 358 359 if (cvtflag) { 360 eodp = (struct odirect *)&buf[size]; 361 for (odp = (struct odirect *)buf; odp < eodp; odp++) 362 if (odp->d_ino != 0) { 363 dcvt(odp, &cvtbuf); 364 putent(&cvtbuf); 365 } 366 } else { 367 for (loc = 0; loc < size; ) { 368 dp = (struct direct *)(buf + loc); 369 if (Bcvt) 370 swabst((u_char *)"ls", (u_char *) dp); 371 if (oldinofmt && dp->d_ino != 0) { 372 # if BYTE_ORDER == BIG_ENDIAN 373 if (Bcvt) 374 dp->d_namlen = dp->d_type; 375 # else 376 if (!Bcvt) 377 dp->d_namlen = dp->d_type; 378 # endif 379 dp->d_type = DT_UNKNOWN; 380 } 381 i = DIRBLKSIZ - (loc & (DIRBLKSIZ - 1)); 382 if ((dp->d_reclen & 0x3) != 0 || 383 dp->d_reclen > i || 384 dp->d_reclen < DIRSIZ(0, dp) || 385 dp->d_namlen > NAME_MAX) { 386 vprintf(stdout, "Mangled directory: "); 387 if ((dp->d_reclen & 0x3) != 0) 388 vprintf(stdout, 389 "reclen not multiple of 4 "); 390 if (dp->d_reclen < DIRSIZ(0, dp)) 391 vprintf(stdout, 392 "reclen less than DIRSIZ (%d < %d) ", 393 dp->d_reclen, DIRSIZ(0, dp)); 394 if (dp->d_namlen > NAME_MAX) 395 vprintf(stdout, 396 "reclen name too big (%d > %d) ", 397 dp->d_namlen, NAME_MAX); 398 vprintf(stdout, "\n"); 399 loc += i; 400 continue; 401 } 402 loc += dp->d_reclen; 403 if (dp->d_ino != 0) { 404 putent(dp); 405 } 406 } 407 } 408 } 409 410 /* 411 * These variables are "local" to the following two functions. 412 */ 413 char dirbuf[DIRBLKSIZ]; 414 long dirloc = 0; 415 long prev = 0; 416 417 /* 418 * add a new directory entry to a file. 419 */ 420 static void 421 putent(dp) 422 struct direct *dp; 423 { 424 dp->d_reclen = DIRSIZ(0, dp); 425 if (dirloc + dp->d_reclen > DIRBLKSIZ) { 426 ((struct direct *)(dirbuf + prev))->d_reclen = 427 DIRBLKSIZ - prev; 428 (void) fwrite(dirbuf, 1, DIRBLKSIZ, df); 429 dirloc = 0; 430 } 431 memcpy(dirbuf + dirloc, dp, (long)dp->d_reclen); 432 prev = dirloc; 433 dirloc += dp->d_reclen; 434 } 435 436 /* 437 * flush out a directory that is finished. 438 */ 439 static void 440 flushent() 441 { 442 ((struct direct *)(dirbuf + prev))->d_reclen = DIRBLKSIZ - prev; 443 (void) fwrite(dirbuf, (int)dirloc, 1, df); 444 seekpt = ftell(df); 445 dirloc = 0; 446 } 447 448 static void 449 dcvt(odp, ndp) 450 struct odirect *odp; 451 struct direct *ndp; 452 { 453 454 memset(ndp, 0, (size_t)(sizeof *ndp)); 455 ndp->d_ino = odp->d_ino; 456 ndp->d_type = DT_UNKNOWN; 457 (void) strncpy(ndp->d_name, odp->d_name, ODIRSIZ); 458 ndp->d_namlen = strlen(ndp->d_name); 459 ndp->d_reclen = DIRSIZ(0, ndp); 460 } 461 462 /* 463 * Seek to an entry in a directory. 464 * Only values returned by rst_telldir should be passed to rst_seekdir. 465 * This routine handles many directories in a single file. 466 * It takes the base of the directory in the file, plus 467 * the desired seek offset into it. 468 */ 469 static void 470 rst_seekdir(dirp, loc, base) 471 RST_DIR *dirp; 472 long loc, base; 473 { 474 475 if (loc == rst_telldir(dirp)) 476 return; 477 loc -= base; 478 if (loc < 0) 479 fprintf(stderr, "bad seek pointer to rst_seekdir %d\n", 480 (int)loc); 481 (void) lseek(dirp->dd_fd, base + (loc & ~(DIRBLKSIZ - 1)), SEEK_SET); 482 dirp->dd_loc = loc & (DIRBLKSIZ - 1); 483 if (dirp->dd_loc != 0) 484 dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ); 485 } 486 487 /* 488 * get next entry in a directory. 489 */ 490 struct direct * 491 rst_readdir(dirp) 492 RST_DIR *dirp; 493 { 494 struct direct *dp; 495 496 for (;;) { 497 if (dirp->dd_loc == 0) { 498 dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, 499 DIRBLKSIZ); 500 if (dirp->dd_size <= 0) { 501 dprintf(stderr, "error reading directory\n"); 502 return (NULL); 503 } 504 } 505 if (dirp->dd_loc >= dirp->dd_size) { 506 dirp->dd_loc = 0; 507 continue; 508 } 509 dp = (struct direct *)(dirp->dd_buf + dirp->dd_loc); 510 if (dp->d_reclen == 0 || 511 dp->d_reclen > DIRBLKSIZ + 1 - dirp->dd_loc) { 512 dprintf(stderr, "corrupted directory: bad reclen %d\n", 513 dp->d_reclen); 514 return (NULL); 515 } 516 dirp->dd_loc += dp->d_reclen; 517 if (dp->d_ino == 0 && strcmp(dp->d_name, "/") == 0) 518 return (NULL); 519 if (dp->d_ino >= maxino) { 520 dprintf(stderr, "corrupted directory: bad inum %d\n", 521 dp->d_ino); 522 continue; 523 } 524 return (dp); 525 } 526 } 527 528 /* 529 * Simulate the opening of a directory 530 */ 531 RST_DIR * 532 rst_opendir(name) 533 const char *name; 534 { 535 struct inotab *itp; 536 RST_DIR *dirp; 537 ino_t ino; 538 539 if ((ino = dirlookup(name)) > 0 && 540 (itp = inotablookup(ino)) != NULL) { 541 dirp = opendirfile(dirfile); 542 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 543 return (dirp); 544 } 545 return (NULL); 546 } 547 548 /* 549 * In our case, there is nothing to do when closing a directory. 550 */ 551 void 552 rst_closedir(dirp) 553 RST_DIR *dirp; 554 { 555 556 (void)close(dirp->dd_fd); 557 free(dirp); 558 return; 559 } 560 561 /* 562 * Simulate finding the current offset in the directory. 563 */ 564 static long 565 rst_telldir(dirp) 566 RST_DIR *dirp; 567 { 568 return ((long)lseek(dirp->dd_fd, 569 (off_t)0, SEEK_CUR) - dirp->dd_size + dirp->dd_loc); 570 } 571 572 /* 573 * Open a directory file. 574 */ 575 static RST_DIR * 576 opendirfile(name) 577 const char *name; 578 { 579 RST_DIR *dirp; 580 int fd; 581 582 if ((fd = open(name, O_RDONLY)) == -1) 583 return (NULL); 584 if ((dirp = malloc(sizeof(RST_DIR))) == NULL) { 585 (void)close(fd); 586 return (NULL); 587 } 588 dirp->dd_fd = fd; 589 dirp->dd_loc = 0; 590 return (dirp); 591 } 592 593 /* 594 * Set the mode, owner, and times for all new or changed directories 595 */ 596 void 597 setdirmodes(flags) 598 int flags; 599 { 600 FILE *mf; 601 struct modeinfo node; 602 struct entry *ep; 603 char *cp; 604 605 vprintf(stdout, "Set directory mode, owner, and times.\n"); 606 if (command == 'r' || command == 'R') 607 (void) snprintf(modefile, sizeof(modefile), "%s/rstmode%d", 608 tmpdir, (int)dumpdate); 609 if (modefile[0] == '#') { 610 panic("modefile not defined\n"); 611 fprintf(stderr, "directory mode, owner, and times not set\n"); 612 return; 613 } 614 mf = fopen(modefile, "r"); 615 if (mf == NULL) { 616 fprintf(stderr, "fopen: %s\n", strerror(errno)); 617 fprintf(stderr, "cannot open mode file %s\n", modefile); 618 fprintf(stderr, "directory mode, owner, and times not set\n"); 619 return; 620 } 621 clearerr(mf); 622 for (;;) { 623 (void) fread((char *)&node, 1, sizeof(struct modeinfo), mf); 624 if (feof(mf)) 625 break; 626 ep = lookupino(node.ino); 627 if (command == 'i' || command == 'x') { 628 if (ep == NULL) 629 continue; 630 if ((flags & FORCE) == 0 && ep->e_flags & EXISTED) { 631 ep->e_flags &= ~NEW; 632 continue; 633 } 634 if (node.ino == ROOTINO && 635 reply("set owner/mode for '.'") == FAIL) 636 continue; 637 } 638 if (ep == NULL) { 639 panic("cannot find directory inode %d\n", node.ino); 640 } else { 641 cp = myname(ep); 642 (void) chown(cp, node.uid, node.gid); 643 (void) chmod(cp, node.mode); 644 (void) chflags(cp, node.flags); 645 utimes(cp, node.timep); 646 ep->e_flags &= ~NEW; 647 } 648 } 649 if (ferror(mf)) 650 panic("error setting directory modes\n"); 651 (void) fclose(mf); 652 } 653 654 /* 655 * Generate a literal copy of a directory. 656 */ 657 int 658 genliteraldir(name, ino) 659 char *name; 660 ino_t ino; 661 { 662 struct inotab *itp; 663 int ofile, dp, i, size; 664 char buf[BUFSIZ]; 665 666 itp = inotablookup(ino); 667 if (itp == NULL) 668 panic("Cannot find directory inode %d named %s\n", ino, name); 669 if ((ofile = open(name, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) { 670 fprintf(stderr, "%s: ", name); 671 (void) fflush(stderr); 672 fprintf(stderr, "cannot create file: %s\n", strerror(errno)); 673 return (FAIL); 674 } 675 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 676 dp = dup(dirp->dd_fd); 677 for (i = itp->t_size; i > 0; i -= BUFSIZ) { 678 size = i < BUFSIZ ? i : BUFSIZ; 679 if (read(dp, buf, (int) size) == -1) { 680 fprintf(stderr, 681 "write error extracting inode %d, name %s\n", 682 curfile.ino, curfile.name); 683 fprintf(stderr, "read: %s\n", strerror(errno)); 684 exit(1); 685 } 686 if (!Nflag && write(ofile, buf, (int) size) == -1) { 687 fprintf(stderr, 688 "write error extracting inode %d, name %s\n", 689 curfile.ino, curfile.name); 690 fprintf(stderr, "write: %s\n", strerror(errno)); 691 exit(1); 692 } 693 } 694 (void) close(dp); 695 (void) close(ofile); 696 return (GOOD); 697 } 698 699 /* 700 * Determine the type of an inode 701 */ 702 int 703 inodetype(ino) 704 ino_t ino; 705 { 706 struct inotab *itp; 707 708 itp = inotablookup(ino); 709 if (itp == NULL) 710 return (LEAF); 711 return (NODE); 712 } 713 714 /* 715 * Allocate and initialize a directory inode entry. 716 * If requested, save its pertinent mode, owner, and time info. 717 */ 718 static struct inotab * 719 allocinotab(ino, dip, seekpt) 720 ino_t ino; 721 struct dinode *dip; 722 long seekpt; 723 { 724 struct inotab *itp; 725 struct modeinfo node; 726 727 itp = calloc(1, sizeof(struct inotab)); 728 if (itp == NULL) 729 panic("no memory directory table\n"); 730 itp->t_next = inotab[INOHASH(ino)]; 731 inotab[INOHASH(ino)] = itp; 732 itp->t_ino = ino; 733 itp->t_seekpt = seekpt; 734 if (mf == NULL) 735 return (itp); 736 node.ino = ino; 737 node.timep[0].tv_sec = dip->di_atime; 738 node.timep[0].tv_usec = dip->di_atimensec / 1000; 739 node.timep[1].tv_sec = dip->di_mtime; 740 node.timep[1].tv_usec = dip->di_mtimensec / 1000; 741 node.mode = dip->di_mode; 742 node.flags = dip->di_flags; 743 node.uid = dip->di_uid; 744 node.gid = dip->di_gid; 745 (void) fwrite((char *)&node, 1, sizeof(struct modeinfo), mf); 746 return (itp); 747 } 748 749 /* 750 * Look up an inode in the table of directories 751 */ 752 static struct inotab * 753 inotablookup(ino) 754 ino_t ino; 755 { 756 struct inotab *itp; 757 758 for (itp = inotab[INOHASH(ino)]; itp != NULL; itp = itp->t_next) 759 if (itp->t_ino == ino) 760 return (itp); 761 return (NULL); 762 } 763 764 /* 765 * Clean up and exit 766 */ 767 void 768 cleanup() 769 { 770 771 closemt(); 772 if (modefile[0] != '#') 773 (void) unlink(modefile); 774 if (dirfile[0] != '#') 775 (void) unlink(dirfile); 776 } 777
Indexes created Thu Sep 25 08:09:54 GMT 2025