1 /* $NetBSD: tape.c,v 1.48 2003/04/02 10:39:31 fvdl 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 #include <sys/cdefs.h> 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)tape.c 8.9 (Berkeley) 5/1/95"; 45 #else 46 __RCSID("$NetBSD: tape.c,v 1.48 2003/04/02 10:39:31 fvdl Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/file.h> 52 #include <sys/ioctl.h> 53 #include <sys/mtio.h> 54 #include <sys/stat.h> 55 56 #include <ufs/ufs/dinode.h> 57 #include <protocols/dumprestore.h> 58 59 #include <errno.h> 60 #include <paths.h> 61 #include <setjmp.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <time.h> 66 #include <unistd.h> 67 68 #include "restore.h" 69 #include "extern.h" 70 71 static u_int32_t fssize = MAXBSIZE; 72 static int mt = -1; 73 static int pipein = 0; 74 static char magtape[BUFSIZ]; 75 static int blkcnt; 76 static int numtrec; 77 static char *tapebuf; 78 static union u_spcl endoftapemark; 79 static int blksread; /* blocks read since last header */ 80 static int tpblksread = 0; /* TP_BSIZE blocks read */ 81 static int tapesread; 82 static jmp_buf restart; 83 static int gettingfile = 0; /* restart has a valid frame */ 84 #ifdef RRESTORE 85 static char *host = NULL; 86 #endif 87 88 static int ofile; 89 static char *map; 90 static char lnkbuf[MAXPATHLEN + 1]; 91 static int pathlen; 92 93 int oldinofmt; /* old inode format conversion required */ 94 int Bcvt; /* Swap Bytes (for CCI or sun) */ 95 96 #define FLUSHTAPEBUF() blkcnt = ntrec + 1 97 98 union u_ospcl { 99 char dummy[TP_BSIZE]; 100 struct s_ospcl { 101 int32_t c_type; 102 int32_t c_date; 103 int32_t c_ddate; 104 int32_t c_volume; 105 int32_t c_tapea; 106 u_int16_t c_inumber; 107 int32_t c_magic; 108 int32_t c_checksum; 109 struct odinode { 110 unsigned short odi_mode; 111 u_int16_t odi_nlink; 112 u_int16_t odi_uid; 113 u_int16_t odi_gid; 114 int32_t odi_size; 115 int32_t odi_rdev; 116 char odi_addr[36]; 117 int32_t odi_atime; 118 int32_t odi_mtime; 119 int32_t odi_ctime; 120 } c_odinode; 121 int32_t c_count; 122 char c_addr[256]; 123 } s_ospcl; 124 }; 125 126 static void accthdr __P((struct s_spcl *)); 127 static int checksum __P((int *)); 128 static void findinode __P((struct s_spcl *)); 129 static void findtapeblksize __P((void)); 130 static int gethead __P((struct s_spcl *)); 131 static void readtape __P((char *)); 132 static void setdumpnum __P((void)); 133 static void terminateinput __P((void)); 134 static void xtrfile __P((char *, long)); 135 static void xtrlnkfile __P((char *, long)); 136 static void xtrlnkskip __P((char *, long)); 137 static void xtrmap __P((char *, long)); 138 static void xtrmapskip __P((char *, long)); 139 static void xtrskip __P((char *, long)); 140 static void swap_header __P((struct s_spcl *)); 141 static void swap_old_header __P((struct s_ospcl *)); 142 143 /* 144 * Set up an input source 145 */ 146 void 147 setinput(source) 148 char *source; 149 { 150 FLUSHTAPEBUF(); 151 if (bflag) 152 newtapebuf(ntrec); 153 else 154 newtapebuf(NTREC > HIGHDENSITYTREC ? NTREC : HIGHDENSITYTREC); 155 terminal = stdin; 156 157 #ifdef RRESTORE 158 if (strchr(source, ':')) { 159 host = source; 160 source = strchr(host, ':'); 161 *source++ = '\0'; 162 if (rmthost(host) == 0) 163 exit(1); 164 } else 165 #endif 166 if (strcmp(source, "-") == 0) { 167 /* 168 * Since input is coming from a pipe we must establish 169 * our own connection to the terminal. 170 */ 171 terminal = fopen(_PATH_TTY, "r"); 172 if (terminal == NULL) { 173 (void)fprintf(stderr, "cannot open %s: %s\n", 174 _PATH_TTY, strerror(errno)); 175 terminal = fopen(_PATH_DEVNULL, "r"); 176 if (terminal == NULL) { 177 (void)fprintf(stderr, "cannot open %s: %s\n", 178 _PATH_DEVNULL, strerror(errno)); 179 exit(1); 180 } 181 } 182 pipein++; 183 } 184 (void) strcpy(magtape, source); 185 } 186 187 void 188 newtapebuf(size) 189 long size; 190 { 191 static int tapebufsize = -1; 192 193 ntrec = size; 194 if (size <= tapebufsize) 195 return; 196 if (tapebuf != NULL) 197 free(tapebuf); 198 tapebuf = malloc(size * TP_BSIZE); 199 if (tapebuf == NULL) { 200 fprintf(stderr, "Cannot allocate space for tape buffer\n"); 201 exit(1); 202 } 203 tapebufsize = size; 204 } 205 206 /* 207 * Verify that the tape drive can be accessed and 208 * that it actually is a dump tape. 209 */ 210 void 211 setup() 212 { 213 int i, j, *ip; 214 struct stat stbuf; 215 216 vprintf(stdout, "Verify tape and initialize maps\n"); 217 #ifdef RRESTORE 218 if (host) 219 mt = rmtopen(magtape, 0); 220 else 221 #endif 222 if (pipein) 223 mt = 0; 224 else 225 mt = open(magtape, O_RDONLY, 0); 226 if (mt < 0) { 227 fprintf(stderr, "%s: %s\n", magtape, strerror(errno)); 228 exit(1); 229 } 230 volno = 1; 231 setdumpnum(); 232 FLUSHTAPEBUF(); 233 if (!pipein && !bflag) 234 findtapeblksize(); 235 if (gethead(&spcl) == FAIL) { 236 blkcnt--; /* push back this block */ 237 blksread--; 238 tpblksread--; 239 cvtflag++; 240 if (gethead(&spcl) == FAIL) { 241 fprintf(stderr, "Tape is not a dump tape\n"); 242 exit(1); 243 } 244 fprintf(stderr, "Converting to new file system format.\n"); 245 } 246 if (pipein) { 247 endoftapemark.s_spcl.c_magic = cvtflag ? OFS_MAGIC : 248 FS_UFS2_MAGIC; 249 endoftapemark.s_spcl.c_type = TS_END; 250 ip = (int *)&endoftapemark; 251 j = sizeof(union u_spcl) / sizeof(int); 252 i = 0; 253 do 254 i += *ip++; 255 while (--j); 256 endoftapemark.s_spcl.c_checksum = CHECKSUM - i; 257 } 258 if (vflag || command == 't') 259 printdumpinfo(); 260 dumptime = spcl.c_ddate; 261 dumpdate = spcl.c_date; 262 if (stat(".", &stbuf) < 0) { 263 fprintf(stderr, "cannot stat .: %s\n", strerror(errno)); 264 exit(1); 265 } 266 if (stbuf.st_blksize >= TP_BSIZE && stbuf.st_blksize <= MAXBSIZE) 267 fssize = stbuf.st_blksize; 268 if (((fssize - 1) & fssize) != 0) { 269 fprintf(stderr, "bad block size %d\n", fssize); 270 exit(1); 271 } 272 if (spcl.c_volume != 1) { 273 fprintf(stderr, "Tape is not volume 1 of the dump\n"); 274 exit(1); 275 } 276 if (gethead(&spcl) == FAIL) { 277 dprintf(stdout, "header read failed at %d blocks\n", blksread); 278 panic("no header after volume mark!\n"); 279 } 280 findinode(&spcl); 281 if (spcl.c_type != TS_CLRI) { 282 fprintf(stderr, "Cannot find file removal list\n"); 283 exit(1); 284 } 285 maxino = (spcl.c_count * TP_BSIZE * NBBY) + 1; 286 dprintf(stdout, "maxino = %d\n", maxino); 287 map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); 288 if (map == NULL) 289 panic("no memory for active inode map\n"); 290 usedinomap = map; 291 curfile.action = USING; 292 getfile(xtrmap, xtrmapskip); 293 if (spcl.c_type != TS_BITS) { 294 fprintf(stderr, "Cannot find file dump list\n"); 295 exit(1); 296 } 297 map = calloc((unsigned)1, (unsigned)howmany(maxino, NBBY)); 298 if (map == (char *)NULL) 299 panic("no memory for file dump list\n"); 300 dumpmap = map; 301 curfile.action = USING; 302 getfile(xtrmap, xtrmapskip); 303 /* 304 * If there may be whiteout entries on the tape, pretend that the 305 * whiteout inode exists, so that the whiteout entries can be 306 * extracted. 307 */ 308 if (oldinofmt == 0) 309 SETINO(WINO, dumpmap); 310 } 311 312 /* 313 * Prompt user to load a new dump volume. 314 * "Nextvol" is the next suggested volume to use. 315 * This suggested volume is enforced when doing full 316 * or incremental restores, but can be overrridden by 317 * the user when only extracting a subset of the files. 318 */ 319 void 320 getvol(nextvol) 321 int nextvol; 322 { 323 int newvol, savecnt, wantnext, i; 324 union u_spcl tmpspcl; 325 # define tmpbuf tmpspcl.s_spcl 326 char buf[TP_BSIZE]; 327 328 newvol = savecnt = wantnext = 0; 329 if (nextvol == 1) { 330 tapesread = 0; 331 gettingfile = 0; 332 } 333 if (pipein) { 334 if (nextvol != 1) 335 panic("Changing volumes on pipe input?\n"); 336 if (volno == 1) 337 return; 338 goto gethdr; 339 } 340 savecnt = blksread; 341 again: 342 if (pipein) 343 exit(1); /* pipes do not get a second chance */ 344 if (command == 'R' || command == 'r' || curfile.action != SKIP) { 345 newvol = nextvol; 346 wantnext = 1; 347 } else { 348 newvol = 0; 349 wantnext = 0; 350 } 351 while (newvol <= 0) { 352 if (tapesread == 0) { 353 fprintf(stderr, "%s%s%s%s%s", 354 "You have not read any tapes yet.\n", 355 "Unless you know which volume your", 356 " file(s) are on you should start\n", 357 "with the last volume and work", 358 " towards the first.\n"); 359 fprintf(stderr, 360 "(Use 1 for the first volume/tape, etc.)\n"); 361 } else { 362 fprintf(stderr, "You have read volumes"); 363 strcpy(buf, ": "); 364 for (i = 1; i < 32; i++) 365 if (tapesread & (1 << i)) { 366 fprintf(stderr, "%s%d", buf, i); 367 strcpy(buf, ", "); 368 } 369 fprintf(stderr, "\n"); 370 } 371 do { 372 fprintf(stderr, "Specify next volume #: "); 373 (void) fflush(stderr); 374 (void) fgets(buf, BUFSIZ, terminal); 375 } while (!feof(terminal) && buf[0] == '\n'); 376 if (feof(terminal)) 377 exit(1); 378 newvol = atoi(buf); 379 if (newvol <= 0) { 380 fprintf(stderr, 381 "Volume numbers are positive numerics\n"); 382 } 383 } 384 if (newvol == volno) { 385 tapesread |= 1 << volno; 386 return; 387 } 388 closemt(); 389 fprintf(stderr, "Mount tape volume %d\n", newvol); 390 fprintf(stderr, "Enter ``none'' if there are no more tapes\n"); 391 fprintf(stderr, "otherwise enter tape name (default: %s) ", magtape); 392 (void) fflush(stderr); 393 (void) fgets(buf, BUFSIZ, terminal); 394 if (feof(terminal)) 395 exit(1); 396 if (!strcmp(buf, "none\n")) { 397 terminateinput(); 398 return; 399 } 400 if (buf[0] != '\n') { 401 (void) strcpy(magtape, buf); 402 magtape[strlen(magtape) - 1] = '\0'; 403 } 404 #ifdef RRESTORE 405 if (host) 406 mt = rmtopen(magtape, 0); 407 else 408 #endif 409 mt = open(magtape, O_RDONLY, 0); 410 411 if (mt == -1) { 412 fprintf(stderr, "Cannot open %s\n", magtape); 413 volno = -1; 414 goto again; 415 } 416 gethdr: 417 volno = newvol; 418 setdumpnum(); 419 FLUSHTAPEBUF(); 420 if (gethead(&tmpbuf) == FAIL) { 421 dprintf(stdout, "header read failed at %d blocks\n", blksread); 422 fprintf(stderr, "tape is not dump tape\n"); 423 volno = 0; 424 goto again; 425 } 426 if (tmpbuf.c_volume != volno) { 427 fprintf(stderr, 428 "Volume mismatch: expecting %d, tape header claims it is %d\n", 429 volno, tmpbuf.c_volume); 430 volno = 0; 431 goto again; 432 } 433 if (tmpbuf.c_date != dumpdate || tmpbuf.c_ddate != dumptime) { 434 time_t ttime = tmpbuf.c_date; 435 fprintf(stderr, "Wrong dump date\n\tgot: %s", 436 ctime(&ttime)); 437 fprintf(stderr, "\twanted: %s", ctime(&dumpdate)); 438 volno = 0; 439 goto again; 440 } 441 tapesread |= 1 << volno; 442 blksread = savecnt; 443 /* 444 * If continuing from the previous volume, skip over any 445 * blocks read already at the end of the previous volume. 446 * 447 * If coming to this volume at random, skip to the beginning 448 * of the next record. 449 */ 450 dprintf(stdout, "read %ld recs, tape starts with %ld\n", 451 (long)tpblksread, (long)tmpbuf.c_firstrec); 452 if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) { 453 if (!wantnext) { 454 tpblksread = tmpbuf.c_firstrec; 455 for (i = tmpbuf.c_count; i > 0; i--) 456 readtape(buf); 457 } else if (tmpbuf.c_firstrec > 0 && 458 tmpbuf.c_firstrec < tpblksread - 1) { 459 /* 460 * -1 since we've read the volume header 461 */ 462 i = tpblksread - tmpbuf.c_firstrec - 1; 463 dprintf(stderr, "Skipping %d duplicate record%s.\n", 464 i, i > 1 ? "s" : ""); 465 while (--i >= 0) 466 readtape(buf); 467 } 468 } 469 if (curfile.action == USING) { 470 if (volno == 1) 471 panic("active file into volume 1\n"); 472 return; 473 } 474 /* 475 * Skip up to the beginning of the next record 476 */ 477 if (tmpbuf.c_type == TS_TAPE && (tmpbuf.c_flags & DR_NEWHEADER)) 478 for (i = tmpbuf.c_count; i > 0; i--) 479 readtape(buf); 480 (void) gethead(&spcl); 481 findinode(&spcl); 482 if (gettingfile) { 483 gettingfile = 0; 484 longjmp(restart, 1); 485 } 486 } 487 488 /* 489 * Handle unexpected EOF. 490 */ 491 static void 492 terminateinput() 493 { 494 495 if (gettingfile && curfile.action == USING) { 496 printf("Warning: %s %s\n", 497 "End-of-input encountered while extracting", curfile.name); 498 } 499 curfile.name = "<name unknown>"; 500 curfile.action = UNKNOWN; 501 curfile.mode = 0; 502 curfile.ino = maxino; 503 if (gettingfile) { 504 gettingfile = 0; 505 longjmp(restart, 1); 506 } 507 } 508 509 /* 510 * handle multiple dumps per tape by skipping forward to the 511 * appropriate one. 512 */ 513 static void 514 setdumpnum() 515 { 516 struct mtop tcom; 517 518 if (dumpnum == 1 || volno != 1) 519 return; 520 if (pipein) { 521 fprintf(stderr, "Cannot have multiple dumps on pipe input\n"); 522 exit(1); 523 } 524 tcom.mt_op = MTFSF; 525 tcom.mt_count = dumpnum - 1; 526 #ifdef RRESTORE 527 if (host) 528 rmtioctl(MTFSF, dumpnum - 1); 529 else 530 #endif 531 if (ioctl(mt, (int)MTIOCTOP, (char *)&tcom) < 0) 532 fprintf(stderr, "ioctl MTFSF: %s\n", strerror(errno)); 533 } 534 535 void 536 printdumpinfo() 537 { 538 time_t ttime; 539 540 ttime = spcl.c_date; 541 fprintf(stdout, "Dump date: %s", ctime(&ttime)); 542 ttime = spcl.c_ddate; 543 fprintf(stdout, "Dumped from: %s", 544 (spcl.c_ddate == 0) ? "the epoch\n" : ctime(&ttime)); 545 fprintf(stderr, "Level %d dump of %s on %s:%s\n", 546 spcl.c_level, spcl.c_filesys, 547 *spcl.c_host? spcl.c_host: "[unknown]", spcl.c_dev); 548 fprintf(stderr, "Label: %s\n", spcl.c_label); 549 } 550 551 int 552 extractfile(name) 553 char *name; 554 { 555 int flags; 556 uid_t uid; 557 gid_t gid; 558 mode_t mode; 559 struct timeval mtimep[2], ctimep[2]; 560 struct entry *ep; 561 int setbirth; 562 563 curfile.name = name; 564 curfile.action = USING; 565 mtimep[0].tv_sec = curfile.atime_sec; 566 mtimep[0].tv_usec = curfile.atime_nsec / 1000; 567 mtimep[1].tv_sec = curfile.mtime_sec; 568 mtimep[1].tv_usec = curfile.mtime_nsec / 1000; 569 570 setbirth = curfile.birthtime_sec != 0; 571 572 if (setbirth) { 573 ctimep[0].tv_sec = curfile.atime_sec; 574 ctimep[0].tv_usec = curfile.atime_nsec / 1000; 575 ctimep[1].tv_sec = curfile.birthtime_sec; 576 ctimep[1].tv_usec = curfile.birthtime_nsec / 1000; 577 } 578 uid = curfile.uid; 579 gid = curfile.gid; 580 mode = curfile.mode; 581 flags = curfile.file_flags; 582 switch (mode & IFMT) { 583 584 default: 585 fprintf(stderr, "%s: unknown file mode 0%o\n", name, mode); 586 skipfile(); 587 return (FAIL); 588 589 case IFSOCK: 590 vprintf(stdout, "skipped socket %s\n", name); 591 skipfile(); 592 return (GOOD); 593 594 case IFDIR: 595 if (mflag) { 596 ep = lookupname(name); 597 if (ep == NULL || ep->e_flags & EXTRACT) 598 panic("unextracted directory %s\n", name); 599 skipfile(); 600 return (GOOD); 601 } 602 vprintf(stdout, "extract file %s\n", name); 603 return (genliteraldir(name, curfile.ino)); 604 605 case IFLNK: 606 lnkbuf[0] = '\0'; 607 pathlen = 0; 608 getfile(xtrlnkfile, xtrlnkskip); 609 if (pathlen == 0) { 610 vprintf(stdout, 611 "%s: zero length symbolic link (ignored)\n", name); 612 return (GOOD); 613 } 614 if (uflag) 615 (void) unlink(name); 616 if (linkit(lnkbuf, name, SYMLINK) == GOOD) { 617 if (setbirth) 618 (void) lutimes(name, ctimep); 619 (void) lutimes(name, mtimep); 620 (void) lchown(name, uid, gid); 621 (void) lchmod(name, mode); 622 (void) lchflags(name, flags); 623 return (GOOD); 624 } 625 return (FAIL); 626 627 case IFCHR: 628 case IFBLK: 629 vprintf(stdout, "extract special file %s\n", name); 630 if (Nflag) { 631 skipfile(); 632 return (GOOD); 633 } 634 if (uflag) 635 (void) unlink(name); 636 if (mknod(name, (mode & (IFCHR | IFBLK)) | 0600, 637 (int)curfile.rdev) < 0) { 638 fprintf(stderr, "%s: cannot create special file: %s\n", 639 name, strerror(errno)); 640 skipfile(); 641 return (FAIL); 642 } 643 skipfile(); 644 if (setbirth) 645 (void) utimes(name, ctimep); 646 (void) utimes(name, mtimep); 647 (void) chown(name, uid, gid); 648 (void) chmod(name, mode); 649 (void) chflags(name, flags); 650 return (GOOD); 651 652 case IFIFO: 653 vprintf(stdout, "extract fifo %s\n", name); 654 if (Nflag) { 655 skipfile(); 656 return (GOOD); 657 } 658 if (uflag) 659 (void) unlink(name); 660 if (mkfifo(name, 0600) < 0) { 661 fprintf(stderr, "%s: cannot create fifo: %s\n", 662 name, strerror(errno)); 663 skipfile(); 664 return (FAIL); 665 } 666 skipfile(); 667 if (setbirth) 668 (void) utimes(name, ctimep); 669 (void) utimes(name, mtimep); 670 (void) chown(name, uid, gid); 671 (void) chmod(name, mode); 672 (void) chflags(name, flags); 673 return (GOOD); 674 675 case IFREG: 676 vprintf(stdout, "extract file %s\n", name); 677 if (Nflag) { 678 skipfile(); 679 return (GOOD); 680 } 681 if (uflag) 682 (void) unlink(name); 683 if ((ofile = open(name, O_WRONLY | O_CREAT | O_TRUNC, 684 0600)) < 0) { 685 fprintf(stderr, "%s: cannot create file: %s\n", 686 name, strerror(errno)); 687 skipfile(); 688 return (FAIL); 689 } 690 getfile(xtrfile, xtrskip); 691 if (setbirth) 692 (void) futimes(ofile, ctimep); 693 (void) futimes(ofile, mtimep); 694 (void) fchown(ofile, uid, gid); 695 (void) fchmod(ofile, mode); 696 (void) fchflags(ofile, flags); 697 (void) close(ofile); 698 return (GOOD); 699 } 700 /* NOTREACHED */ 701 } 702 703 /* 704 * skip over bit maps on the tape 705 */ 706 void 707 skipmaps() 708 { 709 710 while (spcl.c_type == TS_BITS || spcl.c_type == TS_CLRI) 711 skipfile(); 712 } 713 714 /* 715 * skip over a file on the tape 716 */ 717 void 718 skipfile() 719 { 720 721 curfile.action = SKIP; 722 getfile(xtrnull, xtrnull); 723 } 724 725 /* 726 * Extract a file from the tape. 727 * When an allocated block is found it is passed to the fill function; 728 * when an unallocated block (hole) is found, a zeroed buffer is passed 729 * to the skip function. 730 */ 731 void 732 getfile(fill, skip) 733 void (*fill) __P((char *, long)); 734 void (*skip) __P((char *, long)); 735 { 736 int i; 737 int curblk = 0; 738 quad_t size = spcl.c_size; 739 static char clearedbuf[MAXBSIZE]; 740 char buf[MAXBSIZE / TP_BSIZE][TP_BSIZE]; 741 char junk[TP_BSIZE]; 742 743 #ifdef __GNUC__ /* XXX: to shut up gcc warnings */ 744 (void)&curblk; 745 (void)&size; 746 #endif 747 748 if (spcl.c_type == TS_END) 749 panic("ran off end of tape\n"); 750 if (spcl.c_magic != FS_UFS2_MAGIC) 751 panic("not at beginning of a file\n"); 752 if (!gettingfile && setjmp(restart) != 0) 753 return; 754 gettingfile++; 755 loop: 756 for (i = 0; i < spcl.c_count; i++) { 757 if (spcl.c_type == TS_BITS || spcl.c_type == TS_CLRI || 758 spcl.c_addr[i]) { 759 readtape(&buf[curblk++][0]); 760 if (curblk == fssize / TP_BSIZE) { 761 (*fill)((char *)buf, (long)(size > TP_BSIZE ? 762 fssize : (curblk - 1) * TP_BSIZE + size)); 763 curblk = 0; 764 } 765 } else { 766 if (curblk > 0) { 767 (*fill)((char *)buf, (long)(size > TP_BSIZE ? 768 curblk * TP_BSIZE : 769 (curblk - 1) * TP_BSIZE + size)); 770 curblk = 0; 771 } 772 (*skip)(clearedbuf, (long)(size > TP_BSIZE ? 773 TP_BSIZE : size)); 774 } 775 if ((size -= TP_BSIZE) <= 0) { 776 if (spcl.c_type == TS_BITS || spcl.c_type == TS_CLRI) { 777 /* 778 * In this case, the following expression 779 * should always be false since the size was 780 * initially set to spcl.c_size and 781 * it is initialized to spcl.c_count * TP_BSIZE 782 * in gethead(). 783 */ 784 if (!(size == 0 && i == spcl.c_count - 1)) 785 panic("inconsistent map size\n"); 786 } else { 787 for (i++; i < spcl.c_count; i++) 788 if (spcl.c_addr[i]) 789 readtape(junk); 790 } 791 break; 792 } 793 } 794 if (gethead(&spcl) == GOOD && size > 0) { 795 if (spcl.c_type == TS_ADDR) 796 goto loop; 797 dprintf(stdout, 798 "Missing address (header) block for %s at %d blocks\n", 799 curfile.name, blksread); 800 } 801 if (curblk > 0) 802 (*fill)((char *)buf, (long)((curblk * TP_BSIZE) + size)); 803 findinode(&spcl); 804 gettingfile = 0; 805 } 806 807 /* 808 * Write out the next block of a file. 809 */ 810 static void 811 xtrfile(buf, size) 812 char *buf; 813 long size; 814 { 815 816 if (Nflag) 817 return; 818 if (write(ofile, buf, (int) size) == -1) { 819 fprintf(stderr, 820 "write error extracting inode %d, name %s\nwrite: %s\n", 821 curfile.ino, curfile.name, strerror(errno)); 822 exit(1); 823 } 824 } 825 826 /* 827 * Skip over a hole in a file. 828 */ 829 /* ARGSUSED */ 830 static void 831 xtrskip(buf, size) 832 char *buf; 833 long size; 834 { 835 836 if (lseek(ofile, size, SEEK_CUR) == -1) { 837 fprintf(stderr, 838 "seek error extracting inode %d, name %s\nlseek: %s\n", 839 curfile.ino, curfile.name, strerror(errno)); 840 exit(1); 841 } 842 } 843 844 /* 845 * Collect the next block of a symbolic link. 846 */ 847 static void 848 xtrlnkfile(buf, size) 849 char *buf; 850 long size; 851 { 852 853 pathlen += size; 854 if (pathlen > MAXPATHLEN) { 855 fprintf(stderr, "symbolic link name: %s->%s%s; too long %d\n", 856 curfile.name, lnkbuf, buf, pathlen); 857 exit(1); 858 } 859 (void) strcat(lnkbuf, buf); 860 } 861 862 /* 863 * Skip over a hole in a symbolic link (should never happen). 864 */ 865 /* ARGSUSED */ 866 static void 867 xtrlnkskip(buf, size) 868 char *buf; 869 long size; 870 { 871 872 fprintf(stderr, "unallocated block in symbolic link %s\n", 873 curfile.name); 874 exit(1); 875 } 876 877 /* 878 * Collect the next block of a bit map. 879 */ 880 static void 881 xtrmap(buf, size) 882 char *buf; 883 long size; 884 { 885 886 memmove(map, buf, size); 887 map += size; 888 } 889 890 /* 891 * Skip over a hole in a bit map (should never happen). 892 */ 893 /* ARGSUSED */ 894 static void 895 xtrmapskip(buf, size) 896 char *buf; 897 long size; 898 { 899 900 panic("hole in map\n"); 901 map += size; 902 } 903 904 /* 905 * Noop, when an extraction function is not needed. 906 */ 907 /* ARGSUSED */ 908 void 909 xtrnull(buf, size) 910 char *buf; 911 long size; 912 { 913 914 return; 915 } 916 917 /* 918 * Read TP_BSIZE blocks from the input. 919 * Handle read errors, and end of media. 920 */ 921 static void 922 readtape(buf) 923 char *buf; 924 { 925 int rd, newvol, i; 926 int cnt, seek_failed; 927 928 if (blkcnt < numtrec) { 929 memmove(buf, &tapebuf[(blkcnt++ * TP_BSIZE)], (long)TP_BSIZE); 930 blksread++; 931 tpblksread++; 932 return; 933 } 934 for (i = 0; i < ntrec; i++) 935 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0; 936 if (numtrec == 0) 937 numtrec = ntrec; 938 cnt = ntrec * TP_BSIZE; 939 rd = 0; 940 getmore: 941 #ifdef RRESTORE 942 if (host) 943 i = rmtread(&tapebuf[rd], cnt); 944 else 945 #endif 946 i = read(mt, &tapebuf[rd], cnt); 947 /* 948 * Check for mid-tape short read error. 949 * If found, skip rest of buffer and start with the next. 950 */ 951 if (!pipein && numtrec < ntrec && i > 0) { 952 dprintf(stdout, "mid-media short read error.\n"); 953 numtrec = ntrec; 954 } 955 /* 956 * Handle partial block read. 957 */ 958 if (pipein && i == 0 && rd > 0) 959 i = rd; 960 else if (i > 0 && i != ntrec * TP_BSIZE) { 961 if (pipein) { 962 rd += i; 963 cnt -= i; 964 if (cnt > 0) 965 goto getmore; 966 i = rd; 967 } else { 968 /* 969 * Short read. Process the blocks read. 970 */ 971 if (i % TP_BSIZE != 0) 972 vprintf(stdout, 973 "partial block read: %d should be %d\n", 974 i, ntrec * TP_BSIZE); 975 numtrec = i / TP_BSIZE; 976 } 977 } 978 /* 979 * Handle read error. 980 */ 981 if (i < 0) { 982 fprintf(stderr, "Tape read error while "); 983 switch (curfile.action) { 984 default: 985 fprintf(stderr, "trying to set up tape\n"); 986 break; 987 case UNKNOWN: 988 fprintf(stderr, "trying to resynchronize\n"); 989 break; 990 case USING: 991 fprintf(stderr, "restoring %s\n", curfile.name); 992 break; 993 case SKIP: 994 fprintf(stderr, "skipping over inode %d\n", 995 curfile.ino); 996 break; 997 } 998 if (!yflag && !reply("continue")) 999 exit(1); 1000 i = ntrec * TP_BSIZE; 1001 memset(tapebuf, 0, i); 1002 #ifdef RRESTORE 1003 if (host) 1004 seek_failed = (rmtseek(i, 1) < 0); 1005 else 1006 #endif 1007 seek_failed = (lseek(mt, i, SEEK_CUR) == (off_t)-1); 1008 1009 if (seek_failed) { 1010 fprintf(stderr, 1011 "continuation failed: %s\n", strerror(errno)); 1012 exit(1); 1013 } 1014 } 1015 /* 1016 * Handle end of tape. 1017 */ 1018 if (i == 0) { 1019 vprintf(stdout, "End-of-tape encountered\n"); 1020 if (!pipein) { 1021 newvol = volno + 1; 1022 volno = 0; 1023 numtrec = 0; 1024 getvol(newvol); 1025 readtape(buf); 1026 return; 1027 } 1028 if (rd % TP_BSIZE != 0) 1029 panic("partial block read: %d should be %d\n", 1030 rd, ntrec * TP_BSIZE); 1031 terminateinput(); 1032 memmove(&tapebuf[rd], &endoftapemark, (long)TP_BSIZE); 1033 } 1034 blkcnt = 0; 1035 memmove(buf, &tapebuf[(blkcnt++ * TP_BSIZE)], (long)TP_BSIZE); 1036 blksread++; 1037 tpblksread++; 1038 } 1039 1040 static void 1041 findtapeblksize() 1042 { 1043 long i; 1044 1045 for (i = 0; i < ntrec; i++) 1046 ((struct s_spcl *)&tapebuf[i * TP_BSIZE])->c_magic = 0; 1047 blkcnt = 0; 1048 #ifdef RRESTORE 1049 if (host) 1050 i = rmtread(tapebuf, ntrec * TP_BSIZE); 1051 else 1052 #endif 1053 i = read(mt, tapebuf, ntrec * TP_BSIZE); 1054 1055 if (i <= 0) { 1056 fprintf(stderr, "tape read error: %s\n", strerror(errno)); 1057 exit(1); 1058 } 1059 if (i % TP_BSIZE != 0) { 1060 fprintf(stderr, "Tape block size (%ld) %s (%ld)\n", 1061 (long)i, "is not a multiple of dump block size", 1062 (long)TP_BSIZE); 1063 exit(1); 1064 } 1065 ntrec = i / TP_BSIZE; 1066 numtrec = ntrec; 1067 vprintf(stdout, "Tape block size is %d\n", ntrec); 1068 } 1069 1070 void 1071 closemt() 1072 { 1073 1074 if (mt < 0) 1075 return; 1076 #ifdef RRESTORE 1077 if (host) 1078 rmtclose(); 1079 else 1080 #endif 1081 (void) close(mt); 1082 } 1083 1084 /* 1085 * Read the next block from the tape. 1086 * Check to see if it is one of several vintage headers. 1087 * If it is an old style header, convert it to a new style header. 1088 * If it is not any valid header, return an error. 1089 */ 1090 static int 1091 gethead(buf) 1092 struct s_spcl *buf; 1093 { 1094 union u_ospcl u_ospcl; 1095 1096 if (!cvtflag) { 1097 readtape((char *)buf); 1098 if (buf->c_magic != NFS_MAGIC && 1099 buf->c_magic != FS_UFS2_MAGIC) { 1100 if (bswap32(buf->c_magic) != NFS_MAGIC && 1101 bswap32(buf->c_magic) != FS_UFS2_MAGIC) 1102 return (FAIL); 1103 if (!Bcvt) { 1104 vprintf(stdout, "Note: Doing Byte swapping\n"); 1105 Bcvt = 1; 1106 } 1107 } 1108 if (checksum((int *)buf) == FAIL) 1109 return (FAIL); 1110 if (Bcvt) 1111 swap_header(buf); 1112 goto good; 1113 } 1114 1115 readtape((char *)(&u_ospcl.s_ospcl)); 1116 if (checksum((int *)(&u_ospcl.s_ospcl)) == FAIL) 1117 return (FAIL); 1118 if (u_ospcl.s_ospcl.c_magic != OFS_MAGIC) { 1119 if (bswap32(u_ospcl.s_ospcl.c_magic) != OFS_MAGIC) 1120 return (FAIL); 1121 if (!Bcvt) { 1122 vprintf(stdout, "Note: Doing Byte swapping\n"); 1123 Bcvt = 1; 1124 } 1125 swap_old_header(&u_ospcl.s_ospcl); 1126 } 1127 1128 memset(buf, 0, (long)TP_BSIZE); 1129 buf->c_type = u_ospcl.s_ospcl.c_type; 1130 buf->c_date = u_ospcl.s_ospcl.c_date; 1131 buf->c_ddate = u_ospcl.s_ospcl.c_ddate; 1132 buf->c_volume = u_ospcl.s_ospcl.c_volume; 1133 buf->c_tapea = u_ospcl.s_ospcl.c_tapea; 1134 buf->c_inumber = u_ospcl.s_ospcl.c_inumber; 1135 buf->c_checksum = u_ospcl.s_ospcl.c_checksum; 1136 buf->c_mode = u_ospcl.s_ospcl.c_odinode.odi_mode; 1137 buf->c_uid = u_ospcl.s_ospcl.c_odinode.odi_uid; 1138 buf->c_gid = u_ospcl.s_ospcl.c_odinode.odi_gid; 1139 buf->c_size = u_ospcl.s_ospcl.c_odinode.odi_size; 1140 buf->c_rdev = u_ospcl.s_ospcl.c_odinode.odi_rdev; 1141 buf->c_atime = u_ospcl.s_ospcl.c_odinode.odi_atime; 1142 buf->c_mtime = u_ospcl.s_ospcl.c_odinode.odi_mtime; 1143 buf->c_count = u_ospcl.s_ospcl.c_count; 1144 memmove(buf->c_addr, u_ospcl.s_ospcl.c_addr, (long)256); 1145 buf->c_magic = FS_UFS2_MAGIC; 1146 good: 1147 switch (buf->c_type) { 1148 1149 case TS_CLRI: 1150 case TS_BITS: 1151 /* 1152 * Have to patch up missing information in bit map headers 1153 */ 1154 buf->c_inumber = 0; 1155 buf->c_size = buf->c_count * TP_BSIZE; 1156 break; 1157 1158 case TS_TAPE: 1159 if ((buf->c_flags & DR_NEWINODEFMT) == 0) 1160 oldinofmt = 1; 1161 /* fall through */ 1162 case TS_END: 1163 buf->c_inumber = 0; 1164 break; 1165 1166 case TS_INODE: 1167 if (buf->c_magic == NFS_MAGIC) { 1168 buf->c_tapea = buf->c_old_tapea; 1169 buf->c_firstrec = buf->c_old_firstrec; 1170 buf->c_date = buf->c_old_date; 1171 buf->c_ddate = buf->c_old_ddate; 1172 buf->c_atime = buf->c_old_atime; 1173 buf->c_mtime = buf->c_old_mtime; 1174 buf->c_birthtime = 0; 1175 buf->c_birthtimensec = 0; 1176 buf->c_atimensec = buf->c_mtimensec = 0; 1177 } 1178 1179 case TS_ADDR: 1180 break; 1181 1182 default: 1183 panic("gethead: unknown inode type %d\n", buf->c_type); 1184 break; 1185 } 1186 1187 buf->c_magic = FS_UFS2_MAGIC; 1188 1189 /* 1190 * If we are restoring a filesystem with old format inodes, 1191 * copy the uid/gid to the new location. 1192 */ 1193 if (oldinofmt) { 1194 buf->c_uid = buf->c_spare1[1]; 1195 buf->c_gid = buf->c_spare1[2]; 1196 } 1197 if (dflag) 1198 accthdr(buf); 1199 return(GOOD); 1200 } 1201 1202 /* 1203 * Check that a header is where it belongs and predict the next header 1204 */ 1205 static void 1206 accthdr(header) 1207 struct s_spcl *header; 1208 { 1209 static ino_t previno = 0x7fffffff; 1210 static int prevtype; 1211 static long predict; 1212 long blks, i; 1213 1214 if (header->c_type == TS_TAPE) { 1215 fprintf(stderr, "Volume header (%s inode format) ", 1216 oldinofmt ? "old" : "new"); 1217 if (header->c_firstrec) 1218 fprintf(stderr, "begins with record %lld", 1219 (long long)header->c_firstrec); 1220 fprintf(stderr, "\n"); 1221 previno = 0x7fffffff; 1222 return; 1223 } 1224 if (previno == 0x7fffffff) 1225 goto newcalc; 1226 switch (prevtype) { 1227 case TS_BITS: 1228 fprintf(stderr, "Dumped inodes map header"); 1229 break; 1230 case TS_CLRI: 1231 fprintf(stderr, "Used inodes map header"); 1232 break; 1233 case TS_INODE: 1234 fprintf(stderr, "File header, ino %d", previno); 1235 break; 1236 case TS_ADDR: 1237 fprintf(stderr, "File continuation header, ino %d", previno); 1238 break; 1239 case TS_END: 1240 fprintf(stderr, "End of tape header"); 1241 break; 1242 } 1243 if (predict != blksread - 1) 1244 fprintf(stderr, "; predicted %ld blocks, got %ld blocks", 1245 (long)predict, (long)(blksread - 1)); 1246 fprintf(stderr, "\n"); 1247 newcalc: 1248 blks = 0; 1249 switch (header->c_type) { 1250 case TS_END: 1251 break; 1252 case TS_CLRI: 1253 case TS_BITS: 1254 blks = header->c_count; 1255 break; 1256 default: 1257 for (i = 0; i < header->c_count; i++) 1258 if (header->c_addr[i] != 0) 1259 blks++; 1260 break; 1261 } 1262 predict = blks; 1263 blksread = 0; 1264 prevtype = header->c_type; 1265 previno = header->c_inumber; 1266 } 1267 1268 /* 1269 * Find an inode header. 1270 * Complain if had to skip, and complain is set. 1271 */ 1272 static void 1273 findinode(header) 1274 struct s_spcl *header; 1275 { 1276 static long skipcnt = 0; 1277 long i; 1278 char buf[TP_BSIZE]; 1279 1280 curfile.name = "<name unknown>"; 1281 curfile.action = UNKNOWN; 1282 curfile.mode = 0; 1283 curfile.ino = 0; 1284 top: 1285 do { 1286 if (header->c_magic != FS_UFS2_MAGIC) { 1287 skipcnt++; 1288 while (gethead(header) == FAIL || 1289 header->c_date != dumpdate) 1290 skipcnt++; 1291 } 1292 switch (header->c_type) { 1293 1294 case TS_ADDR: 1295 /* 1296 * Skip up to the beginning of the next record 1297 */ 1298 for (i = 0; i < header->c_count; i++) 1299 if (header->c_addr[i]) 1300 readtape(buf); 1301 while (gethead(header) == FAIL || 1302 header->c_date != dumpdate) 1303 skipcnt++; 1304 /* We've read a header; don't drop it. */ 1305 goto top; 1306 1307 case TS_INODE: 1308 curfile.mode = header->c_mode; 1309 curfile.uid = header->c_uid; 1310 curfile.gid = header->c_gid; 1311 curfile.file_flags = header->c_file_flags; 1312 curfile.rdev = header->c_rdev; 1313 curfile.atime_sec = header->c_atime; 1314 curfile.atime_nsec = header->c_atimensec; 1315 curfile.mtime_sec = header->c_mtime; 1316 curfile.mtime_nsec = header->c_mtimensec; 1317 curfile.birthtime_sec = header->c_birthtime; 1318 curfile.birthtime_nsec = header->c_birthtimensec; 1319 curfile.size = header->c_size; 1320 curfile.ino = header->c_inumber; 1321 break; 1322 1323 case TS_END: 1324 curfile.ino = maxino; 1325 break; 1326 1327 case TS_CLRI: 1328 curfile.name = "<file removal list>"; 1329 break; 1330 1331 case TS_BITS: 1332 curfile.name = "<file dump list>"; 1333 break; 1334 1335 case TS_TAPE: 1336 panic("unexpected tape header\n"); 1337 break; 1338 1339 default: 1340 panic("unknown tape header type %d\n", spcl.c_type); 1341 break; 1342 1343 } 1344 } while (header->c_type == TS_ADDR); 1345 if (skipcnt > 0) 1346 fprintf(stderr, "resync restore, skipped %ld blocks\n", 1347 (long)skipcnt); 1348 skipcnt = 0; 1349 } 1350 1351 static int 1352 checksum(buf) 1353 int *buf; 1354 { 1355 int i, j; 1356 1357 j = sizeof(union u_spcl) / sizeof(int); 1358 i = 0; 1359 if(!Bcvt) { 1360 do 1361 i += *buf++; 1362 while (--j); 1363 } else { 1364 do 1365 i += bswap32(*buf++); 1366 while (--j); 1367 } 1368 1369 if (i != CHECKSUM) { 1370 fprintf(stderr, "Checksum error %o, inode %d file %s\n", i, 1371 curfile.ino, curfile.name); 1372 return(FAIL); 1373 } 1374 return(GOOD); 1375 } 1376 1377 #ifdef RRESTORE 1378 #include <stdarg.h> 1379 1380 void 1381 msg(const char *fmt, ...) 1382 { 1383 va_list ap; 1384 1385 va_start(ap, fmt); 1386 (void)vfprintf(stderr, fmt, ap); 1387 va_end(ap); 1388 } 1389 #endif /* RRESTORE */ 1390 1391 static void 1392 swap_header(struct s_spcl *s) 1393 { 1394 s->c_type = bswap32(s->c_type); 1395 s->c_old_date = bswap32(s->c_old_date); 1396 s->c_old_ddate = bswap32(s->c_old_ddate); 1397 s->c_volume = bswap32(s->c_volume); 1398 s->c_old_tapea = bswap32(s->c_old_tapea); 1399 s->c_inumber = bswap32(s->c_inumber); 1400 s->c_magic = bswap32(s->c_magic); 1401 s->c_checksum = bswap32(s->c_checksum); 1402 1403 s->c_mode = bswap16(s->c_mode); 1404 s->c_size = bswap64(s->c_size); 1405 s->c_old_atime = bswap32(s->c_old_atime); 1406 s->c_atimensec = bswap32(s->c_atimensec); 1407 s->c_old_mtime = bswap32(s->c_old_mtime); 1408 s->c_mtimensec = bswap32(s->c_mtimensec); 1409 s->c_rdev = bswap32(s->c_rdev); 1410 s->c_birthtimensec = bswap32(s->c_birthtimensec); 1411 s->c_birthtime = bswap64(s->c_birthtime); 1412 s->c_atime = bswap64(s->c_atime); 1413 s->c_mtime = bswap64(s->c_mtime); 1414 s->c_file_flags = bswap32(s->c_file_flags); 1415 s->c_uid = bswap32(s->c_uid); 1416 s->c_gid = bswap32(s->c_gid); 1417 1418 s->c_count = bswap32(s->c_count); 1419 s->c_level = bswap32(s->c_level); 1420 s->c_flags = bswap32(s->c_flags); 1421 s->c_old_firstrec = bswap32(s->c_old_firstrec); 1422 1423 s->c_date = bswap64(s->c_date); 1424 s->c_ddate = bswap64(s->c_ddate); 1425 s->c_tapea = bswap64(s->c_tapea); 1426 s->c_firstrec = bswap64(s->c_firstrec); 1427 1428 /* 1429 * These are ouid and ogid. 1430 */ 1431 s->c_spare1[1] = bswap16(s->c_spare1[1]); 1432 s->c_spare1[2] = bswap16(s->c_spare1[2]); 1433 } 1434 1435 static void 1436 swap_old_header(struct s_ospcl *os) 1437 { 1438 os->c_type = bswap32(os->c_type); 1439 os->c_date = bswap32(os->c_date); 1440 os->c_ddate = bswap32(os->c_ddate); 1441 os->c_volume = bswap32(os->c_volume); 1442 os->c_tapea = bswap32(os->c_tapea); 1443 os->c_inumber = bswap16(os->c_inumber); 1444 os->c_magic = bswap32(os->c_magic); 1445 os->c_checksum = bswap32(os->c_checksum); 1446 1447 os->c_odinode.odi_mode = bswap16(os->c_odinode.odi_mode); 1448 os->c_odinode.odi_nlink = bswap16(os->c_odinode.odi_nlink); 1449 os->c_odinode.odi_uid = bswap16(os->c_odinode.odi_uid); 1450 os->c_odinode.odi_gid = bswap16(os->c_odinode.odi_gid); 1451 1452 os->c_odinode.odi_size = bswap32(os->c_odinode.odi_size); 1453 os->c_odinode.odi_rdev = bswap32(os->c_odinode.odi_rdev); 1454 os->c_odinode.odi_atime = bswap32(os->c_odinode.odi_atime); 1455 os->c_odinode.odi_mtime = bswap32(os->c_odinode.odi_mtime); 1456 os->c_odinode.odi_ctime = bswap32(os->c_odinode.odi_ctime); 1457 1458 os->c_count = bswap32(os->c_count); 1459 } 1460