1 /* $NetBSD: utilities.c,v 1.30 2001/02/04 21:25:54 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95"; 40 #else 41 __RCSID("$NetBSD: utilities.c,v 1.30 2001/02/04 21:25:54 christos Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/time.h> 47 48 #include <ufs/ufs/dinode.h> 49 #include <ufs/ufs/dir.h> 50 #include <ufs/ffs/fs.h> 51 #include <ufs/ffs/ffs_extern.h> 52 #include <ufs/ufs/ufs_bswap.h> 53 54 #include <ctype.h> 55 #include <err.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <string.h> 59 #include <unistd.h> 60 61 #include "fsutil.h" 62 #include "fsck.h" 63 #include "extern.h" 64 65 long diskreads, totalreads; /* Disk cache statistics */ 66 67 static void rwerror __P((char *, ufs_daddr_t)); 68 69 extern int returntosingle; 70 71 int 72 ftypeok(dp) 73 struct dinode *dp; 74 { 75 switch (iswap16(dp->di_mode) & IFMT) { 76 77 case IFDIR: 78 case IFREG: 79 case IFBLK: 80 case IFCHR: 81 case IFLNK: 82 case IFSOCK: 83 case IFIFO: 84 return (1); 85 86 default: 87 if (debug) 88 printf("bad file type 0%o\n", iswap16(dp->di_mode)); 89 return (0); 90 } 91 } 92 93 int 94 reply(question) 95 char *question; 96 { 97 int persevere; 98 char c; 99 100 if (preen) 101 pfatal("INTERNAL ERROR: GOT TO reply()"); 102 persevere = !strcmp(question, "CONTINUE"); 103 printf("\n"); 104 if (!persevere && (nflag || fswritefd < 0)) { 105 printf("%s? no\n\n", question); 106 resolved = 0; 107 return (0); 108 } 109 if (yflag || (persevere && nflag)) { 110 printf("%s? yes\n\n", question); 111 return (1); 112 } 113 do { 114 printf("%s? [yn] ", question); 115 (void) fflush(stdout); 116 c = getc(stdin); 117 while (c != '\n' && getc(stdin) != '\n') { 118 if (feof(stdin)) { 119 resolved = 0; 120 return (0); 121 } 122 } 123 } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N'); 124 printf("\n"); 125 if (c == 'y' || c == 'Y') 126 return (1); 127 resolved = 0; 128 return (0); 129 } 130 131 /* 132 * Malloc buffers and set up cache. 133 */ 134 void 135 bufinit() 136 { 137 struct bufarea *bp; 138 long bufcnt, i; 139 char *bufp; 140 141 pbp = pdirbp = (struct bufarea *)0; 142 bufp = malloc((unsigned int)sblock->fs_bsize); 143 if (bufp == 0) 144 errx(EEXIT, "cannot allocate buffer pool"); 145 cgblk.b_un.b_buf = bufp; 146 initbarea(&cgblk); 147 bufhead.b_next = bufhead.b_prev = &bufhead; 148 bufcnt = MAXBUFSPACE / sblock->fs_bsize; 149 if (bufcnt < MINBUFS) 150 bufcnt = MINBUFS; 151 for (i = 0; i < bufcnt; i++) { 152 bp = (struct bufarea *)malloc(sizeof(struct bufarea)); 153 bufp = malloc((unsigned int)sblock->fs_bsize); 154 if (bp == NULL || bufp == NULL) { 155 if (i >= MINBUFS) 156 break; 157 errx(EEXIT, "cannot allocate buffer pool"); 158 } 159 bp->b_un.b_buf = bufp; 160 bp->b_prev = &bufhead; 161 bp->b_next = bufhead.b_next; 162 bufhead.b_next->b_prev = bp; 163 bufhead.b_next = bp; 164 initbarea(bp); 165 } 166 bufhead.b_size = i; /* save number of buffers */ 167 } 168 169 /* 170 * Manage a cache of directory blocks. 171 */ 172 struct bufarea * 173 getdatablk(blkno, size) 174 ufs_daddr_t blkno; 175 long size; 176 { 177 struct bufarea *bp; 178 179 for (bp = bufhead.b_next; bp != &bufhead; bp = bp->b_next) 180 if (bp->b_bno == fsbtodb(sblock, blkno)) 181 goto foundit; 182 for (bp = bufhead.b_prev; bp != &bufhead; bp = bp->b_prev) 183 if ((bp->b_flags & B_INUSE) == 0) 184 break; 185 if (bp == &bufhead) 186 errx(EEXIT, "deadlocked buffer pool"); 187 getblk(bp, blkno, size); 188 /* fall through */ 189 foundit: 190 totalreads++; 191 bp->b_prev->b_next = bp->b_next; 192 bp->b_next->b_prev = bp->b_prev; 193 bp->b_prev = &bufhead; 194 bp->b_next = bufhead.b_next; 195 bufhead.b_next->b_prev = bp; 196 bufhead.b_next = bp; 197 bp->b_flags |= B_INUSE; 198 return (bp); 199 } 200 201 void 202 getblk(bp, blk, size) 203 struct bufarea *bp; 204 ufs_daddr_t blk; 205 long size; 206 { 207 ufs_daddr_t dblk; 208 209 dblk = fsbtodb(sblock, blk); 210 if (bp->b_bno != dblk) { 211 flush(fswritefd, bp); 212 diskreads++; 213 bp->b_errs = bread(fsreadfd, bp->b_un.b_buf, dblk, size); 214 bp->b_bno = dblk; 215 bp->b_size = size; 216 } 217 } 218 219 void 220 flush(fd, bp) 221 int fd; 222 struct bufarea *bp; 223 { 224 int i, j; 225 226 if (!bp->b_dirty) 227 return; 228 if (bp->b_errs != 0) 229 pfatal("WRITING %sZERO'ED BLOCK %d TO DISK\n", 230 (bp->b_errs == bp->b_size / dev_bsize) ? "" : "PARTIALLY ", 231 bp->b_bno); 232 bp->b_dirty = 0; 233 bp->b_errs = 0; 234 bwrite(fd, bp->b_un.b_buf, bp->b_bno, (long)bp->b_size); 235 if (bp != &sblk) 236 return; 237 for (i = 0, j = 0; i < sblock->fs_cssize; i += sblock->fs_bsize, j++) { 238 int size = sblock->fs_cssize - i < sblock->fs_bsize ? 239 sblock->fs_cssize - i : sblock->fs_bsize; 240 /* 241 * The following routines assumes that struct csum is made of 242 * u_int32_t's 243 */ 244 if (needswap) { 245 int k; 246 u_int32_t *cd = (u_int32_t *)sblock->fs_csp[j]; 247 248 for (k = 0; k < size / sizeof(u_int32_t); k++) 249 cd[k] = bswap32(cd[k]); 250 } 251 bwrite(fswritefd, (char *)sblock->fs_csp[j], 252 fsbtodb(sblock, sblock->fs_csaddr + j * sblock->fs_frag), 253 size); 254 if (needswap) { 255 int k; 256 u_int32_t *cd = (u_int32_t *)sblock->fs_csp[j]; 257 258 for (k = 0; k < size / sizeof(u_int32_t); k++) 259 cd[k] = bswap32(cd[k]); 260 } 261 } 262 } 263 264 static void 265 rwerror(mesg, blk) 266 char *mesg; 267 ufs_daddr_t blk; 268 { 269 270 if (preen == 0) 271 printf("\n"); 272 pfatal("CANNOT %s: BLK %d", mesg, blk); 273 if (reply("CONTINUE") == 0) 274 exit(EEXIT); 275 } 276 277 void 278 ckfini() 279 { 280 struct bufarea *bp, *nbp; 281 int ofsmodified, cnt = 0; 282 283 if (fswritefd < 0) { 284 (void)close(fsreadfd); 285 return; 286 } 287 flush(fswritefd, &sblk); 288 if (havesb && sblk.b_bno != SBOFF / dev_bsize && 289 !preen && reply("UPDATE STANDARD SUPERBLOCK")) { 290 sblk.b_bno = SBOFF / dev_bsize; 291 sbdirty(); 292 flush(fswritefd, &sblk); 293 } 294 flush(fswritefd, &cgblk); 295 free(cgblk.b_un.b_buf); 296 for (bp = bufhead.b_prev; bp && bp != &bufhead; bp = nbp) { 297 cnt++; 298 flush(fswritefd, bp); 299 nbp = bp->b_prev; 300 free(bp->b_un.b_buf); 301 free((char *)bp); 302 } 303 if (bufhead.b_size != cnt) 304 errx(EEXIT, "Panic: lost %d buffers", bufhead.b_size - cnt); 305 pbp = pdirbp = (struct bufarea *)0; 306 if (markclean && (sblock->fs_clean & FS_ISCLEAN) == 0) { 307 /* 308 * Mark the file system as clean, and sync the superblock. 309 */ 310 if (preen) 311 pwarn("MARKING FILE SYSTEM CLEAN\n"); 312 else if (!reply("MARK FILE SYSTEM CLEAN")) 313 markclean = 0; 314 if (markclean) { 315 sblock->fs_clean = FS_ISCLEAN; 316 sbdirty(); 317 ofsmodified = fsmodified; 318 flush(fswritefd, &sblk); 319 #if LITE2BORKEN 320 fsmodified = ofsmodified; 321 #endif 322 if (!preen) 323 printf( 324 "\n***** FILE SYSTEM MARKED CLEAN *****\n"); 325 } 326 } 327 if (debug) 328 printf("cache missed %ld of %ld (%d%%)\n", diskreads, 329 totalreads, (int)(diskreads * 100 / totalreads)); 330 (void)close(fsreadfd); 331 (void)close(fswritefd); 332 } 333 334 int 335 bread(fd, buf, blk, size) 336 int fd; 337 char *buf; 338 ufs_daddr_t blk; 339 long size; 340 { 341 char *cp; 342 int i, errs; 343 off_t offset; 344 345 offset = blk; 346 offset *= dev_bsize; 347 if (lseek(fd, offset, 0) < 0) 348 rwerror("SEEK", blk); 349 else if (read(fd, buf, (int)size) == size) 350 return (0); 351 rwerror("READ", blk); 352 if (lseek(fd, offset, 0) < 0) 353 rwerror("SEEK", blk); 354 errs = 0; 355 memset(buf, 0, (size_t)size); 356 printf("THE FOLLOWING DISK SECTORS COULD NOT BE READ:"); 357 for (cp = buf, i = 0; i < size; i += secsize, cp += secsize) { 358 if (read(fd, cp, (int)secsize) != secsize) { 359 (void)lseek(fd, offset + i + secsize, 0); 360 if (secsize != dev_bsize && dev_bsize != 1) 361 printf(" %ld (%ld),", 362 (blk * dev_bsize + i) / secsize, 363 blk + i / dev_bsize); 364 else 365 printf(" %ld,", blk + i / dev_bsize); 366 errs++; 367 } 368 } 369 printf("\n"); 370 return (errs); 371 } 372 373 void 374 bwrite(fd, buf, blk, size) 375 int fd; 376 char *buf; 377 ufs_daddr_t blk; 378 long size; 379 { 380 int i; 381 char *cp; 382 off_t offset; 383 384 if (fd < 0) 385 return; 386 offset = blk; 387 offset *= dev_bsize; 388 if (lseek(fd, offset, 0) < 0) 389 rwerror("SEEK", blk); 390 else if (write(fd, buf, (int)size) == size) { 391 fsmodified = 1; 392 return; 393 } 394 rwerror("WRITE", blk); 395 if (lseek(fd, offset, 0) < 0) 396 rwerror("SEEK", blk); 397 printf("THE FOLLOWING SECTORS COULD NOT BE WRITTEN:"); 398 for (cp = buf, i = 0; i < size; i += dev_bsize, cp += dev_bsize) 399 if (write(fd, cp, (int)dev_bsize) != dev_bsize) { 400 (void)lseek(fd, offset + i + dev_bsize, 0); 401 printf(" %ld,", blk + i / dev_bsize); 402 } 403 printf("\n"); 404 return; 405 } 406 407 /* 408 * allocate a data block with the specified number of fragments 409 */ 410 ufs_daddr_t 411 allocblk(frags) 412 long frags; 413 { 414 int i, j, k, cg, baseblk; 415 struct cg *cgp = cgrp; 416 417 if (frags <= 0 || frags > sblock->fs_frag) 418 return (0); 419 for (i = 0; i < maxfsblock - sblock->fs_frag; i += sblock->fs_frag) { 420 for (j = 0; j <= sblock->fs_frag - frags; j++) { 421 if (testbmap(i + j)) 422 continue; 423 for (k = 1; k < frags; k++) 424 if (testbmap(i + j + k)) 425 break; 426 if (k < frags) { 427 j += k; 428 continue; 429 } 430 cg = dtog(sblock, i + j); 431 getblk(&cgblk, cgtod(sblock, cg), sblock->fs_cgsize); 432 memcpy(cgp, cgblk.b_un.b_cg, sblock->fs_cgsize); 433 if ((doswap && !needswap) || (!doswap && needswap)) 434 swap_cg(cgblk.b_un.b_cg, cgp); 435 if (!cg_chkmagic(cgp, 0)) 436 pfatal("CG %d: ALLOCBLK: BAD MAGIC NUMBER\n", 437 cg); 438 baseblk = dtogd(sblock, i + j); 439 for (k = 0; k < frags; k++) { 440 setbmap(i + j + k); 441 clrbit(cg_blksfree(cgp, 0), baseblk + k); 442 } 443 n_blks += frags; 444 if (frags == sblock->fs_frag) 445 cgp->cg_cs.cs_nbfree--; 446 else 447 cgp->cg_cs.cs_nffree -= frags; 448 cgdirty(); 449 return (i + j); 450 } 451 } 452 return (0); 453 } 454 455 /* 456 * Free a previously allocated block 457 */ 458 void 459 freeblk(blkno, frags) 460 ufs_daddr_t blkno; 461 long frags; 462 { 463 struct inodesc idesc; 464 465 idesc.id_blkno = blkno; 466 idesc.id_numfrags = frags; 467 (void)pass4check(&idesc); 468 } 469 470 /* 471 * Find a pathname 472 */ 473 void 474 getpathname(namebuf, curdir, ino) 475 char *namebuf; 476 ino_t curdir, ino; 477 { 478 int len; 479 char *cp; 480 struct inodesc idesc; 481 static int busy = 0; 482 483 if (curdir == ino && ino == ROOTINO) { 484 (void)strcpy(namebuf, "/"); 485 return; 486 } 487 if (busy || 488 (statemap[curdir] != DSTATE && statemap[curdir] != DFOUND)) { 489 (void)strcpy(namebuf, "?"); 490 return; 491 } 492 busy = 1; 493 memset(&idesc, 0, sizeof(struct inodesc)); 494 idesc.id_type = DATA; 495 idesc.id_fix = IGNORE; 496 cp = &namebuf[MAXPATHLEN - 1]; 497 *cp = '\0'; 498 if (curdir != ino) { 499 idesc.id_parent = curdir; 500 goto namelookup; 501 } 502 while (ino != ROOTINO) { 503 idesc.id_number = ino; 504 idesc.id_func = findino; 505 idesc.id_name = ".."; 506 if ((ckinode(ginode(ino), &idesc) & FOUND) == 0) 507 break; 508 namelookup: 509 idesc.id_number = idesc.id_parent; 510 idesc.id_parent = ino; 511 idesc.id_func = findname; 512 idesc.id_name = namebuf; 513 if ((ckinode(ginode(idesc.id_number), &idesc)&FOUND) == 0) 514 break; 515 len = strlen(namebuf); 516 cp -= len; 517 memmove(cp, namebuf, (size_t)len); 518 *--cp = '/'; 519 if (cp < &namebuf[MAXNAMLEN]) 520 break; 521 ino = idesc.id_number; 522 } 523 busy = 0; 524 if (ino != ROOTINO) 525 *--cp = '?'; 526 memmove(namebuf, cp, (size_t)(&namebuf[MAXPATHLEN] - cp)); 527 } 528 529 void 530 catch(sig) 531 int sig; 532 { 533 if (!doinglevel2) { 534 markclean = 0; 535 ckfini(); 536 } 537 exit(12); 538 } 539 540 /* 541 * When preening, allow a single quit to signal 542 * a special exit after filesystem checks complete 543 * so that reboot sequence may be interrupted. 544 */ 545 void 546 catchquit(sig) 547 int sig; 548 { 549 printf("returning to single-user after filesystem check\n"); 550 returntosingle = 1; 551 (void)signal(SIGQUIT, SIG_DFL); 552 } 553 554 /* 555 * Ignore a single quit signal; wait and flush just in case. 556 * Used by child processes in preen. 557 */ 558 void 559 voidquit(sig) 560 int sig; 561 { 562 563 sleep(1); 564 (void)signal(SIGQUIT, SIG_IGN); 565 (void)signal(SIGQUIT, SIG_DFL); 566 } 567 568 /* 569 * determine whether an inode should be fixed. 570 */ 571 int 572 dofix(idesc, msg) 573 struct inodesc *idesc; 574 char *msg; 575 { 576 577 switch (idesc->id_fix) { 578 579 case DONTKNOW: 580 if (idesc->id_type == DATA) 581 direrror(idesc->id_number, msg); 582 else 583 pwarn("%s", msg); 584 if (preen) { 585 printf(" (SALVAGED)\n"); 586 idesc->id_fix = FIX; 587 return (ALTERED); 588 } 589 if (reply("SALVAGE") == 0) { 590 idesc->id_fix = NOFIX; 591 return (0); 592 } 593 idesc->id_fix = FIX; 594 return (ALTERED); 595 596 case FIX: 597 return (ALTERED); 598 599 case NOFIX: 600 case IGNORE: 601 return (0); 602 603 default: 604 errx(EEXIT, "UNKNOWN INODESC FIX MODE %d", idesc->id_fix); 605 } 606 /* NOTREACHED */ 607 return (0); 608 } 609 610 void 611 copyback_cg(blk) 612 struct bufarea *blk; 613 { 614 615 memcpy(blk->b_un.b_cg, cgrp, sblock->fs_cgsize); 616 if (needswap) 617 swap_cg(cgrp, blk->b_un.b_cg); 618 } 619 620 void 621 swap_cg(o, n) 622 struct cg *o, *n; 623 { 624 int i; 625 u_int32_t *n32, *o32; 626 u_int16_t *n16, *o16; 627 628 n->cg_firstfield = bswap32(o->cg_firstfield); 629 n->cg_magic = bswap32(o->cg_magic); 630 n->cg_time = bswap32(o->cg_time); 631 n->cg_cgx = bswap32(o->cg_cgx); 632 n->cg_ncyl = bswap16(o->cg_ncyl); 633 n->cg_niblk = bswap16(o->cg_niblk); 634 n->cg_ndblk = bswap32(o->cg_ndblk); 635 n->cg_cs.cs_ndir = bswap32(o->cg_cs.cs_ndir); 636 n->cg_cs.cs_nbfree = bswap32(o->cg_cs.cs_nbfree); 637 n->cg_cs.cs_nifree = bswap32(o->cg_cs.cs_nifree); 638 n->cg_cs.cs_nffree = bswap32(o->cg_cs.cs_nffree); 639 n->cg_rotor = bswap32(o->cg_rotor); 640 n->cg_frotor = bswap32(o->cg_frotor); 641 n->cg_irotor = bswap32(o->cg_irotor); 642 n->cg_btotoff = bswap32(o->cg_btotoff); 643 n->cg_boff = bswap32(o->cg_boff); 644 n->cg_iusedoff = bswap32(o->cg_iusedoff); 645 n->cg_freeoff = bswap32(o->cg_freeoff); 646 n->cg_nextfreeoff = bswap32(o->cg_nextfreeoff); 647 n->cg_clustersumoff = bswap32(o->cg_clustersumoff); 648 n->cg_clusteroff = bswap32(o->cg_clusteroff); 649 n->cg_nclusterblks = bswap32(o->cg_nclusterblks); 650 for (i=0; i < MAXFRAG; i++) 651 n->cg_frsum[i] = bswap32(o->cg_frsum[i]); 652 653 if (sblock->fs_postblformat == FS_42POSTBLFMT) { /* old format */ 654 struct ocg *on, *oo; 655 int j; 656 on = (struct ocg *)n; 657 oo = (struct ocg *)o; 658 for(i = 0; i < 8; i++) { 659 on->cg_frsum[i] = bswap32(oo->cg_frsum[i]); 660 } 661 for(i = 0; i < 32; i++) { 662 on->cg_btot[i] = bswap32(oo->cg_btot[i]); 663 for (j = 0; j < 8; j++) 664 on->cg_b[i][j] = bswap16(oo->cg_b[i][j]); 665 } 666 memmove(on->cg_iused, oo->cg_iused, 256); 667 on->cg_magic = bswap32(oo->cg_magic); 668 } else { /* new format */ 669 if (n->cg_magic == CG_MAGIC) { 670 n32 = (u_int32_t*)((u_int8_t*)n + n->cg_btotoff); 671 o32 = (u_int32_t*)((u_int8_t*)o + n->cg_btotoff); 672 n16 = (u_int16_t*)((u_int8_t*)n + n->cg_boff); 673 o16 = (u_int16_t*)((u_int8_t*)o + n->cg_boff); 674 } else { 675 n32 = (u_int32_t*)((u_int8_t*)n + o->cg_btotoff); 676 o32 = (u_int32_t*)((u_int8_t*)o + o->cg_btotoff); 677 n16 = (u_int16_t*)((u_int8_t*)n + o->cg_boff); 678 o16 = (u_int16_t*)((u_int8_t*)o + o->cg_boff); 679 } 680 for (i=0; i < sblock->fs_cpg; i++) 681 n32[i] = bswap32(o32[i]); 682 683 for (i=0; i < sblock->fs_cpg * sblock->fs_nrpos; i++) 684 n16[i] = bswap16(o16[i]); 685 686 if (n->cg_magic == CG_MAGIC) { 687 n32 = (u_int32_t*)((u_int8_t*)n + n->cg_clustersumoff); 688 o32 = (u_int32_t*)((u_int8_t*)o + n->cg_clustersumoff); 689 } else { 690 n32 = (u_int32_t*)((u_int8_t*)n + o->cg_clustersumoff); 691 o32 = (u_int32_t*)((u_int8_t*)o + o->cg_clustersumoff); 692 } 693 for (i = 1; i < sblock->fs_contigsumsize + 1; i++) 694 n32[i] = bswap32(o32[i]); 695 } 696 } 697