setup.c revision 1.29
1 /* $NetBSD: setup.c,v 1.29 1997/09/16 08:37:08 mrg 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[] = "@(#)setup.c 8.5 (Berkeley) 11/23/94"; 40 #else 41 __RCSID("$NetBSD: setup.c,v 1.29 1997/09/16 08:37:08 mrg Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #define DKTYPENAMES 46 #include <sys/param.h> 47 #include <sys/time.h> 48 #include <ufs/ufs/dinode.h> 49 #include <ufs/ffs/fs.h> 50 #include <sys/stat.h> 51 #include <sys/ioctl.h> 52 #include <sys/disklabel.h> 53 #include <sys/file.h> 54 55 #include <errno.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <string.h> 59 #include <ctype.h> 60 61 #include "fsck.h" 62 #include "extern.h" 63 #include "fsutil.h" 64 65 struct bufarea asblk; 66 #define altsblock (*asblk.b_un.b_fs) 67 #define POWEROF2(num) (((num) & ((num) - 1)) == 0) 68 69 void badsb __P((int, char *)); 70 int calcsb __P((char *, int, struct fs *)); 71 static struct disklabel *getdisklabel __P((char *, int)); 72 static int readsb __P((int)); 73 74 int 75 setup(dev) 76 char *dev; 77 { 78 long cg, size, asked, i, j; 79 long bmapsize; 80 struct disklabel *lp; 81 off_t sizepb; 82 struct stat statb; 83 struct fs proto; 84 int doskipclean; 85 u_int64_t maxfilesize; 86 87 havesb = 0; 88 fswritefd = -1; 89 doskipclean = skipclean; 90 if (stat(dev, &statb) < 0) { 91 printf("Can't stat %s: %s\n", dev, strerror(errno)); 92 return (0); 93 } 94 if (!S_ISCHR(statb.st_mode)) { 95 pfatal("%s is not a character device", dev); 96 if (reply("CONTINUE") == 0) 97 return (0); 98 } 99 if ((fsreadfd = open(dev, O_RDONLY)) < 0) { 100 printf("Can't open %s: %s\n", dev, strerror(errno)); 101 return (0); 102 } 103 if (preen == 0) 104 printf("** %s", dev); 105 if (nflag || (fswritefd = open(dev, O_WRONLY)) < 0) { 106 fswritefd = -1; 107 if (preen) 108 pfatal("NO WRITE ACCESS"); 109 printf(" (NO WRITE)"); 110 } 111 if (preen == 0) 112 printf("\n"); 113 fsmodified = 0; 114 lfdir = 0; 115 initbarea(&sblk); 116 initbarea(&asblk); 117 sblk.b_un.b_buf = malloc(SBSIZE); 118 asblk.b_un.b_buf = malloc(SBSIZE); 119 if (sblk.b_un.b_buf == NULL || asblk.b_un.b_buf == NULL) 120 errexit("cannot allocate space for superblock\n"); 121 if ((lp = getdisklabel((char *)NULL, fsreadfd)) != NULL) 122 dev_bsize = secsize = lp->d_secsize; 123 else 124 dev_bsize = secsize = DEV_BSIZE; 125 /* 126 * Read in the superblock, looking for alternates if necessary 127 */ 128 if (readsb(1) == 0) { 129 if (bflag || preen || calcsb(dev, fsreadfd, &proto) == 0) 130 return(0); 131 if (reply("LOOK FOR ALTERNATE SUPERBLOCKS") == 0) 132 return (0); 133 for (cg = 0; cg < proto.fs_ncg; cg++) { 134 bflag = fsbtodb(&proto, cgsblock(&proto, cg)); 135 if (readsb(0) != 0) 136 break; 137 } 138 if (cg >= proto.fs_ncg) { 139 printf("%s %s\n%s %s\n%s %s\n", 140 "SEARCH FOR ALTERNATE SUPER-BLOCK", 141 "FAILED. YOU MUST USE THE", 142 "-b OPTION TO FSCK_FFS TO SPECIFY THE", 143 "LOCATION OF AN ALTERNATE", 144 "SUPER-BLOCK TO SUPPLY NEEDED", 145 "INFORMATION; SEE fsck_ffs(8)."); 146 return(0); 147 } 148 doskipclean = 0; 149 pwarn("USING ALTERNATE SUPERBLOCK AT %d\n", bflag); 150 } 151 if (debug) 152 printf("clean = %d\n", sblock.fs_clean); 153 if (sblock.fs_clean & FS_ISCLEAN) { 154 if (doskipclean) { 155 pwarn("%sile system is clean; not checking\n", 156 preen ? "f" : "** F"); 157 return (-1); 158 } 159 if (!preen) 160 pwarn("** File system is already clean\n"); 161 } 162 maxfsblock = sblock.fs_size; 163 maxino = sblock.fs_ncg * sblock.fs_ipg; 164 sizepb = sblock.fs_bsize; 165 maxfilesize = sblock.fs_bsize * NDADDR - 1; 166 for (i = 0; i < NIADDR; i++) { 167 sizepb *= NINDIR(&sblock); 168 maxfilesize += sizepb; 169 } 170 /* 171 * Check and potentially fix certain fields in the super block. 172 */ 173 if (sblock.fs_optim != FS_OPTTIME && sblock.fs_optim != FS_OPTSPACE) { 174 pfatal("UNDEFINED OPTIMIZATION IN SUPERBLOCK"); 175 if (reply("SET TO DEFAULT") == 1) { 176 sblock.fs_optim = FS_OPTTIME; 177 sbdirty(); 178 } 179 } 180 if ((sblock.fs_minfree < 0 || sblock.fs_minfree > 99)) { 181 pfatal("IMPOSSIBLE MINFREE=%d IN SUPERBLOCK", 182 sblock.fs_minfree); 183 if (reply("SET TO DEFAULT") == 1) { 184 sblock.fs_minfree = 10; 185 sbdirty(); 186 } 187 } 188 if (sblock.fs_interleave < 1 || 189 sblock.fs_interleave > sblock.fs_nsect) { 190 pwarn("IMPOSSIBLE INTERLEAVE=%d IN SUPERBLOCK", 191 sblock.fs_interleave); 192 sblock.fs_interleave = 1; 193 if (preen) 194 printf(" (FIXED)\n"); 195 if (preen || reply("SET TO DEFAULT") == 1) { 196 sbdirty(); 197 dirty(&asblk); 198 } 199 } 200 if (sblock.fs_npsect < sblock.fs_nsect || 201 sblock.fs_npsect > sblock.fs_nsect*2) { 202 pwarn("IMPOSSIBLE NPSECT=%d IN SUPERBLOCK", 203 sblock.fs_npsect); 204 sblock.fs_npsect = sblock.fs_nsect; 205 if (preen) 206 printf(" (FIXED)\n"); 207 if (preen || reply("SET TO DEFAULT") == 1) { 208 sbdirty(); 209 dirty(&asblk); 210 } 211 } 212 if (sblock.fs_bmask != ~(sblock.fs_bsize - 1)) { 213 pwarn("INCORRECT BMASK=0x%x IN SUPERBLOCK", 214 sblock.fs_bmask); 215 sblock.fs_bmask = ~(sblock.fs_bsize - 1); 216 if (preen) 217 printf(" (FIXED)\n"); 218 if (preen || reply("FIX") == 1) { 219 sbdirty(); 220 dirty(&asblk); 221 } 222 } 223 if (sblock.fs_fmask != ~(sblock.fs_fsize - 1)) { 224 pwarn("INCORRECT FMASK=0x%x IN SUPERBLOCK", 225 sblock.fs_fmask); 226 sblock.fs_fmask = ~(sblock.fs_fsize - 1); 227 if (preen) 228 printf(" (FIXED)\n"); 229 if (preen || reply("FIX") == 1) { 230 sbdirty(); 231 dirty(&asblk); 232 } 233 } 234 if (sblock.fs_inodefmt >= FS_44INODEFMT) { 235 if (sblock.fs_maxfilesize != maxfilesize) { 236 pwarn("INCORRECT MAXFILESIZE=%qd IN SUPERBLOCK", 237 (unsigned long long)sblock.fs_maxfilesize); 238 sblock.fs_maxfilesize = maxfilesize; 239 if (preen) 240 printf(" (FIXED)\n"); 241 if (preen || reply("FIX") == 1) { 242 sbdirty(); 243 dirty(&asblk); 244 } 245 } 246 if (sblock.fs_maxsymlinklen != MAXSYMLINKLEN) { 247 pwarn("INCORRECT MAXSYMLINKLEN=%d IN SUPERBLOCK", 248 sblock.fs_maxsymlinklen); 249 sblock.fs_maxsymlinklen = MAXSYMLINKLEN; 250 if (preen) 251 printf(" (FIXED)\n"); 252 if (preen || reply("FIX") == 1) { 253 sbdirty(); 254 dirty(&asblk); 255 } 256 } 257 if (sblock.fs_qbmask != ~sblock.fs_bmask) { 258 pwarn("INCORRECT QBMASK=%qx IN SUPERBLOCK", 259 (unsigned long long)sblock.fs_qbmask); 260 sblock.fs_qbmask = ~sblock.fs_bmask; 261 if (preen) 262 printf(" (FIXED)\n"); 263 if (preen || reply("FIX") == 1) { 264 sbdirty(); 265 dirty(&asblk); 266 } 267 } 268 if (sblock.fs_qfmask != ~sblock.fs_fmask) { 269 pwarn("INCORRECT QFMASK=%qx IN SUPERBLOCK", 270 (unsigned long long)sblock.fs_qfmask); 271 sblock.fs_qfmask = ~sblock.fs_fmask; 272 if (preen) 273 printf(" (FIXED)\n"); 274 if (preen || reply("FIX") == 1) { 275 sbdirty(); 276 dirty(&asblk); 277 } 278 } 279 newinofmt = 1; 280 } else { 281 sblock.fs_qbmask = ~sblock.fs_bmask; 282 sblock.fs_qfmask = ~sblock.fs_fmask; 283 newinofmt = 0; 284 } 285 /* 286 * Convert to new inode format. 287 */ 288 if (cvtlevel >= 2 && sblock.fs_inodefmt < FS_44INODEFMT) { 289 if (preen) 290 pwarn("CONVERTING TO NEW INODE FORMAT\n"); 291 else if (!reply("CONVERT TO NEW INODE FORMAT")) 292 return(0); 293 doinglevel2++; 294 sblock.fs_inodefmt = FS_44INODEFMT; 295 sblock.fs_maxfilesize = maxfilesize; 296 sblock.fs_maxsymlinklen = MAXSYMLINKLEN; 297 sblock.fs_qbmask = ~sblock.fs_bmask; 298 sblock.fs_qfmask = ~sblock.fs_fmask; 299 sbdirty(); 300 dirty(&asblk); 301 } 302 /* 303 * Convert to new cylinder group format. 304 */ 305 if (cvtlevel >= 1 && sblock.fs_postblformat == FS_42POSTBLFMT) { 306 if (preen) 307 pwarn("CONVERTING TO NEW CYLINDER GROUP FORMAT\n"); 308 else if (!reply("CONVERT TO NEW CYLINDER GROUP FORMAT")) 309 return(0); 310 doinglevel1++; 311 sblock.fs_postblformat = FS_DYNAMICPOSTBLFMT; 312 sblock.fs_nrpos = 8; 313 sblock.fs_postbloff = 314 (char *)(&sblock.fs_opostbl[0][0]) - 315 (char *)(&sblock.fs_firstfield); 316 sblock.fs_rotbloff = &sblock.fs_space[0] - 317 (u_char *)(&sblock.fs_firstfield); 318 sblock.fs_cgsize = 319 fragroundup(&sblock, CGSIZE(&sblock)); 320 sbdirty(); 321 dirty(&asblk); 322 } 323 if (asblk.b_dirty && !bflag) { 324 memcpy(&altsblock, &sblock, (size_t)sblock.fs_sbsize); 325 flush(fswritefd, &asblk); 326 } 327 /* 328 * read in the summary info. 329 */ 330 asked = 0; 331 for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) { 332 size = sblock.fs_cssize - i < sblock.fs_bsize ? 333 sblock.fs_cssize - i : sblock.fs_bsize; 334 sblock.fs_csp[j] = (struct csum *)calloc(1, (unsigned)size); 335 if (bread(fsreadfd, (char *)sblock.fs_csp[j], 336 fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag), 337 size) != 0 && !asked) { 338 pfatal("BAD SUMMARY INFORMATION"); 339 if (reply("CONTINUE") == 0) 340 errexit("%s", ""); 341 asked++; 342 } 343 } 344 /* 345 * allocate and initialize the necessary maps 346 */ 347 bmapsize = roundup(howmany(maxfsblock, NBBY), sizeof(int16_t)); 348 blockmap = calloc((unsigned)bmapsize, sizeof (char)); 349 if (blockmap == NULL) { 350 printf("cannot alloc %u bytes for blockmap\n", 351 (unsigned)bmapsize); 352 goto badsblabel; 353 } 354 statemap = calloc((unsigned)(maxino + 1), sizeof(char)); 355 if (statemap == NULL) { 356 printf("cannot alloc %u bytes for statemap\n", 357 (unsigned)(maxino + 1)); 358 goto badsblabel; 359 } 360 typemap = calloc((unsigned)(maxino + 1), sizeof(char)); 361 if (typemap == NULL) { 362 printf("cannot alloc %u bytes for typemap\n", 363 (unsigned)(maxino + 1)); 364 goto badsblabel; 365 } 366 lncntp = (int16_t *)calloc((unsigned)(maxino + 1), sizeof(int16_t)); 367 if (lncntp == NULL) { 368 printf("cannot alloc %u bytes for lncntp\n", 369 (unsigned)((maxino + 1) * sizeof(int16_t))); 370 goto badsblabel; 371 } 372 numdirs = sblock.fs_cstotal.cs_ndir; 373 inplast = 0; 374 listmax = numdirs + 10; 375 inpsort = (struct inoinfo **)calloc((unsigned)listmax, 376 sizeof(struct inoinfo *)); 377 inphead = (struct inoinfo **)calloc((unsigned)numdirs, 378 sizeof(struct inoinfo *)); 379 if (inpsort == NULL || inphead == NULL) { 380 printf("cannot alloc %u bytes for inphead\n", 381 (unsigned)(numdirs * sizeof(struct inoinfo *))); 382 goto badsblabel; 383 } 384 bufinit(); 385 return (1); 386 387 badsblabel: 388 ckfini(0); 389 return (0); 390 } 391 392 /* 393 * Read in the super block and its summary info. 394 */ 395 static int 396 readsb(listerr) 397 int listerr; 398 { 399 daddr_t super = bflag ? bflag : SBOFF / dev_bsize; 400 401 if (bread(fsreadfd, (char *)&sblock, super, (long)SBSIZE) != 0) 402 return (0); 403 sblk.b_bno = super; 404 sblk.b_size = SBSIZE; 405 /* 406 * run a few consistency checks of the super block 407 */ 408 if (sblock.fs_magic != FS_MAGIC) 409 { badsb(listerr, "MAGIC NUMBER WRONG"); return (0); } 410 if (sblock.fs_ncg < 1) 411 { badsb(listerr, "NCG OUT OF RANGE"); return (0); } 412 if (sblock.fs_cpg < 1) 413 { badsb(listerr, "CPG OUT OF RANGE"); return (0); } 414 if (sblock.fs_ncg * sblock.fs_cpg < sblock.fs_ncyl || 415 (sblock.fs_ncg - 1) * sblock.fs_cpg >= sblock.fs_ncyl) 416 { badsb(listerr, "NCYL LESS THAN NCG*CPG"); return (0); } 417 if (sblock.fs_sbsize > SBSIZE) 418 { badsb(listerr, "SIZE PREPOSTEROUSLY LARGE"); return (0); } 419 /* 420 * Compute block size that the filesystem is based on, 421 * according to fsbtodb, and adjust superblock block number 422 * so we can tell if this is an alternate later. 423 */ 424 super *= dev_bsize; 425 dev_bsize = sblock.fs_fsize / fsbtodb(&sblock, 1); 426 sblk.b_bno = super / dev_bsize; 427 if (bflag) { 428 havesb = 1; 429 return (1); 430 } 431 /* 432 * Set all possible fields that could differ, then do check 433 * of whole super block against an alternate super block. 434 * When an alternate super-block is specified this check is skipped. 435 */ 436 getblk(&asblk, cgsblock(&sblock, sblock.fs_ncg - 1), sblock.fs_sbsize); 437 if (asblk.b_errs) 438 return (0); 439 altsblock.fs_firstfield = sblock.fs_firstfield; 440 altsblock.fs_fscktime = sblock.fs_fscktime; 441 altsblock.fs_time = sblock.fs_time; 442 altsblock.fs_cstotal = sblock.fs_cstotal; 443 altsblock.fs_cgrotor = sblock.fs_cgrotor; 444 altsblock.fs_fmod = sblock.fs_fmod; 445 altsblock.fs_clean = sblock.fs_clean; 446 altsblock.fs_ronly = sblock.fs_ronly; 447 altsblock.fs_flags = sblock.fs_flags; 448 altsblock.fs_maxcontig = sblock.fs_maxcontig; 449 altsblock.fs_minfree = sblock.fs_minfree; 450 altsblock.fs_optim = sblock.fs_optim; 451 altsblock.fs_rotdelay = sblock.fs_rotdelay; 452 altsblock.fs_maxbpg = sblock.fs_maxbpg; 453 memcpy(altsblock.fs_csp, sblock.fs_csp, 454 sizeof sblock.fs_csp); 455 altsblock.fs_maxcluster = sblock.fs_maxcluster; 456 memcpy(altsblock.fs_fsmnt, sblock.fs_fsmnt, 457 sizeof sblock.fs_fsmnt); 458 memcpy(altsblock.fs_sparecon, sblock.fs_sparecon, 459 sizeof sblock.fs_sparecon); 460 /* 461 * The following should not have to be copied. 462 */ 463 altsblock.fs_fsbtodb = sblock.fs_fsbtodb; 464 altsblock.fs_interleave = sblock.fs_interleave; 465 altsblock.fs_npsect = sblock.fs_npsect; 466 altsblock.fs_nrpos = sblock.fs_nrpos; 467 altsblock.fs_state = sblock.fs_state; 468 altsblock.fs_qbmask = sblock.fs_qbmask; 469 altsblock.fs_qfmask = sblock.fs_qfmask; 470 altsblock.fs_state = sblock.fs_state; 471 altsblock.fs_maxfilesize = sblock.fs_maxfilesize; 472 if (memcmp(&sblock, &altsblock, (int)sblock.fs_sbsize)) { 473 if (debug) { 474 long *nlp, *olp, *endlp; 475 476 printf("superblock mismatches\n"); 477 nlp = (long *)&altsblock; 478 olp = (long *)&sblock; 479 endlp = olp + (sblock.fs_sbsize / sizeof *olp); 480 for ( ; olp < endlp; olp++, nlp++) { 481 if (*olp == *nlp) 482 continue; 483 printf("offset %ld, original %ld, alternate %ld\n", 484 (long)(olp - (long *)&sblock), *olp, *nlp); 485 } 486 } 487 badsb(listerr, 488 "VALUES IN SUPER BLOCK DISAGREE WITH THOSE IN FIRST ALTERNATE"); 489 return (0); 490 } 491 havesb = 1; 492 return (1); 493 } 494 495 void 496 badsb(listerr, s) 497 int listerr; 498 char *s; 499 { 500 501 if (!listerr) 502 return; 503 if (preen) 504 printf("%s: ", cdevname()); 505 pfatal("BAD SUPER BLOCK: %s\n", s); 506 } 507 508 /* 509 * Calculate a prototype superblock based on information in the disk label. 510 * When done the cgsblock macro can be calculated and the fs_ncg field 511 * can be used. Do NOT attempt to use other macros without verifying that 512 * their needed information is available! 513 */ 514 int 515 calcsb(dev, devfd, fs) 516 char *dev; 517 int devfd; 518 struct fs *fs; 519 { 520 struct disklabel *lp; 521 struct partition *pp; 522 char *cp; 523 int i; 524 525 cp = strchr(dev, '\0') - 1; 526 if ((cp == (char *)-1 || (*cp < 'a' || *cp > 'h')) && !isdigit(*cp)) { 527 pfatal("%s: CANNOT FIGURE OUT FILE SYSTEM PARTITION\n", dev); 528 return (0); 529 } 530 lp = getdisklabel(dev, devfd); 531 if (isdigit(*cp)) 532 pp = &lp->d_partitions[0]; 533 else 534 pp = &lp->d_partitions[*cp - 'a']; 535 if (pp->p_fstype != FS_BSDFFS) { 536 pfatal("%s: NOT LABELED AS A BSD FILE SYSTEM (%s)\n", 537 dev, pp->p_fstype < FSMAXTYPES ? 538 fstypenames[pp->p_fstype] : "unknown"); 539 return (0); 540 } 541 memset(fs, 0, sizeof(struct fs)); 542 fs->fs_fsize = pp->p_fsize; 543 fs->fs_frag = pp->p_frag; 544 fs->fs_cpg = pp->p_cpg; 545 fs->fs_size = pp->p_size; 546 fs->fs_ntrak = lp->d_ntracks; 547 fs->fs_nsect = lp->d_nsectors; 548 fs->fs_spc = lp->d_secpercyl; 549 fs->fs_nspf = fs->fs_fsize / lp->d_secsize; 550 fs->fs_sblkno = roundup( 551 howmany(lp->d_bbsize + lp->d_sbsize, fs->fs_fsize), 552 fs->fs_frag); 553 fs->fs_cgmask = 0xffffffff; 554 for (i = fs->fs_ntrak; i > 1; i >>= 1) 555 fs->fs_cgmask <<= 1; 556 if (!POWEROF2(fs->fs_ntrak)) 557 fs->fs_cgmask <<= 1; 558 fs->fs_cgoffset = roundup( 559 howmany(fs->fs_nsect, NSPF(fs)), fs->fs_frag); 560 fs->fs_fpg = (fs->fs_cpg * fs->fs_spc) / NSPF(fs); 561 fs->fs_ncg = howmany(fs->fs_size / fs->fs_spc, fs->fs_cpg); 562 for (fs->fs_fsbtodb = 0, i = NSPF(fs); i > 1; i >>= 1) 563 fs->fs_fsbtodb++; 564 dev_bsize = lp->d_secsize; 565 return (1); 566 } 567 568 static struct disklabel * 569 getdisklabel(s, fd) 570 char *s; 571 int fd; 572 { 573 static struct disklabel lab; 574 575 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 576 if (s == NULL) 577 return ((struct disklabel *)NULL); 578 pwarn("ioctl (GCINFO): %s\n", strerror(errno)); 579 errexit("%s: can't read disk label\n", s); 580 } 581 return (&lab); 582 } 583
Indexes created Wed Sep 24 05:09:52 GMT 2025