setup.c revision 298907
11558Srgrimes/* 21558Srgrimes * Copyright (c) 1980, 1986, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 4. Neither the name of the University nor the names of its contributors 141558Srgrimes * may be used to endorse or promote products derived from this software 151558Srgrimes * without specific prior written permission. 161558Srgrimes * 171558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271558Srgrimes * SUCH DAMAGE. 281558Srgrimes */ 291558Srgrimes 30114589Sobrien#if 0 311558Srgrimes#ifndef lint 3223675Speterstatic const char sccsid[] = "@(#)setup.c 8.10 (Berkeley) 5/9/95"; 33114589Sobrien#endif /* not lint */ 3441477Sjulian#endif 35114589Sobrien#include <sys/cdefs.h> 36114589Sobrien__FBSDID("$FreeBSD: head/sbin/fsck_ffs/setup.c 298907 2016-05-02 01:28:21Z araujo $"); 371558Srgrimes 381558Srgrimes#include <sys/param.h> 391558Srgrimes#include <sys/stat.h> 40101994Sbmilekic#define FSTYPENAMES 411558Srgrimes#include <sys/disklabel.h> 421558Srgrimes#include <sys/file.h> 4386514Siedowse#include <sys/sysctl.h> 4423675Speter 4523675Speter#include <ufs/ufs/dinode.h> 4623675Speter#include <ufs/ffs/fs.h> 4723675Speter 4823675Speter#include <ctype.h> 4923675Speter#include <err.h> 501558Srgrimes#include <errno.h> 51103949Smike#include <limits.h> 52101037Smux#include <stdint.h> 531558Srgrimes#include <string.h> 5423675Speter 551558Srgrimes#include "fsck.h" 561558Srgrimes 571558Srgrimesstruct bufarea asblk; 581558Srgrimes#define altsblock (*asblk.b_un.b_fs) 591558Srgrimes#define POWEROF2(num) (((num) & ((num) - 1)) == 0) 601558Srgrimes 61100935Sphkstatic void badsb(int listerr, const char *s); 621558Srgrimes 6323675Speter/* 6423675Speter * Read in a superblock finding an alternate if necessary. 65102231Strhodes * Return 1 if successful, 0 if unsuccessful, -1 if file system 66187931Sobrien * is already clean (ckclean and preen mode only). 6723675Speter */ 687585Sbdeint 6992839Simpsetup(char *dev) 701558Srgrimes{ 7186514Siedowse long cg, asked, i, j; 7275557Smckusick long bmapsize; 731558Srgrimes struct stat statb; 741558Srgrimes struct fs proto; 7586514Siedowse size_t size; 761558Srgrimes 771558Srgrimes havesb = 0; 781558Srgrimes fswritefd = -1; 7962668Smckusick cursnapshot = 0; 801558Srgrimes if (stat(dev, &statb) < 0) { 811558Srgrimes printf("Can't stat %s: %s\n", dev, strerror(errno)); 8274556Smckusick if (bkgrdflag) { 8374556Smckusick unlink(snapname); 8474556Smckusick bkgrdflag = 0; 8574556Smckusick } 861558Srgrimes return (0); 871558Srgrimes } 8853781Sphk if ((statb.st_mode & S_IFMT) != S_IFCHR && 8953781Sphk (statb.st_mode & S_IFMT) != S_IFBLK) { 9074556Smckusick if (bkgrdflag != 0 && (statb.st_flags & SF_SNAPSHOT) == 0) { 9174556Smckusick unlink(snapname); 9274556Smckusick printf("background fsck lacks a snapshot\n"); 9374556Smckusick exit(EEXIT); 9474556Smckusick } 9574556Smckusick if ((statb.st_flags & SF_SNAPSHOT) != 0 && cvtlevel == 0) { 9662668Smckusick cursnapshot = statb.st_ino; 9762668Smckusick } else { 9874556Smckusick if (cvtlevel == 0 || 9974556Smckusick (statb.st_flags & SF_SNAPSHOT) == 0) { 10074556Smckusick if (preen && bkgrdflag) { 10174556Smckusick unlink(snapname); 10274556Smckusick bkgrdflag = 0; 10374556Smckusick } 10474556Smckusick pfatal("%s is not a disk device", dev); 10574556Smckusick if (reply("CONTINUE") == 0) { 10674556Smckusick if (bkgrdflag) { 10774556Smckusick unlink(snapname); 10874556Smckusick bkgrdflag = 0; 10974556Smckusick } 11074556Smckusick return (0); 11174556Smckusick } 11274556Smckusick } else { 11374556Smckusick if (bkgrdflag) { 11474556Smckusick unlink(snapname); 11574556Smckusick bkgrdflag = 0; 11674556Smckusick } 11774556Smckusick pfatal("cannot convert a snapshot"); 11874556Smckusick exit(EEXIT); 11974556Smckusick } 12062668Smckusick } 1211558Srgrimes } 1221558Srgrimes if ((fsreadfd = open(dev, O_RDONLY)) < 0) { 12374556Smckusick if (bkgrdflag) { 12474556Smckusick unlink(snapname); 12574556Smckusick bkgrdflag = 0; 12674556Smckusick } 1271558Srgrimes printf("Can't open %s: %s\n", dev, strerror(errno)); 1281558Srgrimes return (0); 1291558Srgrimes } 13074556Smckusick if (bkgrdflag) { 13174556Smckusick unlink(snapname); 13274556Smckusick size = MIBSIZE; 13374556Smckusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0|| 13474556Smckusick sysctlnametomib("vfs.ffs.adjblkcnt", adjblkcnt, &size) < 0|| 13574556Smckusick sysctlnametomib("vfs.ffs.freefiles", freefiles, &size) < 0|| 13674556Smckusick sysctlnametomib("vfs.ffs.freedirs", freedirs, &size) < 0 || 13774556Smckusick sysctlnametomib("vfs.ffs.freeblks", freeblks, &size) < 0) { 13874556Smckusick pfatal("kernel lacks background fsck support\n"); 13974556Smckusick exit(EEXIT); 14074556Smckusick } 141143235Sdelphij /* 142143235Sdelphij * When kernel is lack of runtime bgfsck superblock summary 143143235Sdelphij * adjustment functionality, it does not mean we can not 144143235Sdelphij * continue, as old kernels will recompute the summary at 145143235Sdelphij * mount time. However, it will be an unexpected softupdates 146143235Sdelphij * inconsistency if it turns out that the summary is still 147143235Sdelphij * incorrect. Set a flag so subsequent operation can know 148143235Sdelphij * this. 149143235Sdelphij */ 150143235Sdelphij bkgrdsumadj = 1; 151143235Sdelphij if (sysctlnametomib("vfs.ffs.adjndir", adjndir, &size) < 0 || 152143235Sdelphij sysctlnametomib("vfs.ffs.adjnbfree", adjnbfree, &size) < 0 || 153143235Sdelphij sysctlnametomib("vfs.ffs.adjnifree", adjnifree, &size) < 0 || 154143235Sdelphij sysctlnametomib("vfs.ffs.adjnffree", adjnffree, &size) < 0 || 155143235Sdelphij sysctlnametomib("vfs.ffs.adjnumclusters", adjnumclusters, &size) < 0) { 156143235Sdelphij bkgrdsumadj = 0; 157143235Sdelphij pwarn("kernel lacks runtime superblock summary adjustment support"); 158143235Sdelphij } 15974556Smckusick cmd.version = FFS_CMD_VERSION; 16074556Smckusick cmd.handle = fsreadfd; 16174556Smckusick fswritefd = -1; 16274556Smckusick } 1631558Srgrimes if (preen == 0) 1641558Srgrimes printf("** %s", dev); 16574556Smckusick if (bkgrdflag == 0 && 16674556Smckusick (nflag || (fswritefd = open(dev, O_WRONLY)) < 0)) { 1671558Srgrimes fswritefd = -1; 1681558Srgrimes if (preen) 1691558Srgrimes pfatal("NO WRITE ACCESS"); 1701558Srgrimes printf(" (NO WRITE)"); 1711558Srgrimes } 1721558Srgrimes if (preen == 0) 1731558Srgrimes printf("\n"); 1741558Srgrimes /* 1751558Srgrimes * Read in the superblock, looking for alternates if necessary 1761558Srgrimes */ 1771558Srgrimes if (readsb(1) == 0) { 17823675Speter skipclean = 0; 179276737Simp if (bflag || preen) 1801558Srgrimes return(0); 1811558Srgrimes if (reply("LOOK FOR ALTERNATE SUPERBLOCKS") == 0) 1821558Srgrimes return (0); 1831558Srgrimes for (cg = 0; cg < proto.fs_ncg; cg++) { 1841558Srgrimes bflag = fsbtodb(&proto, cgsblock(&proto, cg)); 1851558Srgrimes if (readsb(0) != 0) 1861558Srgrimes break; 1871558Srgrimes } 1881558Srgrimes if (cg >= proto.fs_ncg) { 1891558Srgrimes printf("%s %s\n%s %s\n%s %s\n", 1901558Srgrimes "SEARCH FOR ALTERNATE SUPER-BLOCK", 1911558Srgrimes "FAILED. YOU MUST USE THE", 1921558Srgrimes "-b OPTION TO FSCK TO SPECIFY THE", 1931558Srgrimes "LOCATION OF AN ALTERNATE", 1941558Srgrimes "SUPER-BLOCK TO SUPPLY NEEDED", 195231377Strasz "INFORMATION; SEE fsck_ffs(8)."); 1966280Sbde bflag = 0; 1971558Srgrimes return(0); 1981558Srgrimes } 1991558Srgrimes pwarn("USING ALTERNATE SUPERBLOCK AT %d\n", bflag); 2006280Sbde bflag = 0; 2011558Srgrimes } 202187931Sobrien if (skipclean && ckclean && sblock.fs_clean) { 203118302Sru pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 20441474Sjulian return (-1); 20541474Sjulian } 2061558Srgrimes maxfsblock = sblock.fs_size; 2071558Srgrimes maxino = sblock.fs_ncg * sblock.fs_ipg; 2081558Srgrimes /* 2091558Srgrimes * Check and potentially fix certain fields in the super block. 2101558Srgrimes */ 2111558Srgrimes if (sblock.fs_optim != FS_OPTTIME && sblock.fs_optim != FS_OPTSPACE) { 2121558Srgrimes pfatal("UNDEFINED OPTIMIZATION IN SUPERBLOCK"); 2131558Srgrimes if (reply("SET TO DEFAULT") == 1) { 2141558Srgrimes sblock.fs_optim = FS_OPTTIME; 2151558Srgrimes sbdirty(); 2161558Srgrimes } 2171558Srgrimes } 2181558Srgrimes if ((sblock.fs_minfree < 0 || sblock.fs_minfree > 99)) { 2191558Srgrimes pfatal("IMPOSSIBLE MINFREE=%d IN SUPERBLOCK", 2201558Srgrimes sblock.fs_minfree); 2211558Srgrimes if (reply("SET TO DEFAULT") == 1) { 2221558Srgrimes sblock.fs_minfree = 10; 2231558Srgrimes sbdirty(); 2241558Srgrimes } 2251558Srgrimes } 22698542Smckusick if (sblock.fs_magic == FS_UFS1_MAGIC && 22798542Smckusick sblock.fs_old_inodefmt < FS_44INODEFMT) { 228102231Strhodes pwarn("Format of file system is too old.\n"); 22996483Sphk pwarn("Must update to modern format using a version of fsck\n"); 23096483Sphk pfatal("from before 2002 with the command ``fsck -c 2''\n"); 23196483Sphk exit(EEXIT); 2321558Srgrimes } 23323675Speter if (asblk.b_dirty && !bflag) { 23423675Speter memmove(&altsblock, &sblock, (size_t)sblock.fs_sbsize); 2351558Srgrimes flush(fswritefd, &asblk); 2361558Srgrimes } 2371558Srgrimes /* 2381558Srgrimes * read in the summary info. 2391558Srgrimes */ 2401558Srgrimes asked = 0; 241248658Smckusick sblock.fs_csp = Calloc(1, sblock.fs_cssize); 242125036Scperciva if (sblock.fs_csp == NULL) { 243125036Scperciva printf("cannot alloc %u bytes for cg summary info\n", 244125036Scperciva (unsigned)sblock.fs_cssize); 245125036Scperciva goto badsb; 246125036Scperciva } 2471558Srgrimes for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) { 248298907Saraujo size = MIN(sblock.fs_cssize - i, sblock.fs_bsize); 249247212Smckusick readcnt[sblk.b_type]++; 250163845Spjd if (blread(fsreadfd, (char *)sblock.fs_csp + i, 2511558Srgrimes fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag), 2521558Srgrimes size) != 0 && !asked) { 2531558Srgrimes pfatal("BAD SUMMARY INFORMATION"); 25434266Sjulian if (reply("CONTINUE") == 0) { 25534266Sjulian ckfini(0); 25623675Speter exit(EEXIT); 25734266Sjulian } 2581558Srgrimes asked++; 2591558Srgrimes } 2601558Srgrimes } 2611558Srgrimes /* 2621558Srgrimes * allocate and initialize the necessary maps 2631558Srgrimes */ 264103949Smike bmapsize = roundup(howmany(maxfsblock, CHAR_BIT), sizeof(short)); 265248658Smckusick blockmap = Calloc((unsigned)bmapsize, sizeof (char)); 2661558Srgrimes if (blockmap == NULL) { 2671558Srgrimes printf("cannot alloc %u bytes for blockmap\n", 2681558Srgrimes (unsigned)bmapsize); 2691558Srgrimes goto badsb; 2701558Srgrimes } 271248658Smckusick inostathead = Calloc((unsigned)(sblock.fs_ncg), 27241474Sjulian sizeof(struct inostatlist)); 27341474Sjulian if (inostathead == NULL) { 27441474Sjulian printf("cannot alloc %u bytes for inostathead\n", 27541474Sjulian (unsigned)(sizeof(struct inostatlist) * (sblock.fs_ncg))); 2761558Srgrimes goto badsb; 2771558Srgrimes } 278107518Smckusick numdirs = MAX(sblock.fs_cstotal.cs_ndir, 128); 27957573Smckusick dirhash = numdirs; 2801558Srgrimes inplast = 0; 2811558Srgrimes listmax = numdirs + 10; 282248658Smckusick inpsort = (struct inoinfo **)Calloc((unsigned)listmax, 2831558Srgrimes sizeof(struct inoinfo *)); 284248658Smckusick inphead = (struct inoinfo **)Calloc((unsigned)numdirs, 2851558Srgrimes sizeof(struct inoinfo *)); 2861558Srgrimes if (inpsort == NULL || inphead == NULL) { 287101037Smux printf("cannot alloc %ju bytes for inphead\n", 288101037Smux (uintmax_t)numdirs * sizeof(struct inoinfo *)); 2891558Srgrimes goto badsb; 2901558Srgrimes } 2911558Srgrimes bufinit(); 29234266Sjulian if (sblock.fs_flags & FS_DOSOFTDEP) 29334266Sjulian usedsoftdep = 1; 29434266Sjulian else 29534266Sjulian usedsoftdep = 0; 2961558Srgrimes return (1); 2971558Srgrimes 2981558Srgrimesbadsb: 29923675Speter ckfini(0); 3001558Srgrimes return (0); 3011558Srgrimes} 3021558Srgrimes 3031558Srgrimes/* 30498542Smckusick * Possible superblock locations ordered from most to least likely. 30598542Smckusick */ 30698542Smckusickstatic int sblock_try[] = SBLOCKSEARCH; 30798542Smckusick 308122784Swes#define BAD_MAGIC_MSG \ 309122784Swes"The previous newfs operation on this volume did not complete.\n" \ 310122784Swes"You must complete newfs before mounting this volume.\n" 311122784Swes 31298542Smckusick/* 3131558Srgrimes * Read in the super block and its summary info. 3141558Srgrimes */ 31575557Smckusickint 31692839Simpreadsb(int listerr) 3171558Srgrimes{ 31898542Smckusick ufs2_daddr_t super; 31998542Smckusick int i; 3201558Srgrimes 32198542Smckusick if (bflag) { 32298542Smckusick super = bflag; 323247212Smckusick readcnt[sblk.b_type]++; 324163845Spjd if ((blread(fsreadfd, (char *)&sblock, super, (long)SBLOCKSIZE))) 32598542Smckusick return (0); 326134011Sjhb if (sblock.fs_magic == FS_BAD_MAGIC) { 327122784Swes fprintf(stderr, BAD_MAGIC_MSG); 328122784Swes exit(11); 329122784Swes } 330107518Smckusick if (sblock.fs_magic != FS_UFS1_MAGIC && 331107518Smckusick sblock.fs_magic != FS_UFS2_MAGIC) { 332107518Smckusick fprintf(stderr, "%d is not a file system superblock\n", 333107518Smckusick bflag); 334107518Smckusick return (0); 335107518Smckusick } 33698542Smckusick } else { 33798542Smckusick for (i = 0; sblock_try[i] != -1; i++) { 33898542Smckusick super = sblock_try[i] / dev_bsize; 339247212Smckusick readcnt[sblk.b_type]++; 340163845Spjd if ((blread(fsreadfd, (char *)&sblock, super, 34198542Smckusick (long)SBLOCKSIZE))) 34298542Smckusick return (0); 343134011Sjhb if (sblock.fs_magic == FS_BAD_MAGIC) { 344122784Swes fprintf(stderr, BAD_MAGIC_MSG); 345122784Swes exit(11); 346122784Swes } 34798542Smckusick if ((sblock.fs_magic == FS_UFS1_MAGIC || 34898542Smckusick (sblock.fs_magic == FS_UFS2_MAGIC && 349107294Smckusick sblock.fs_sblockloc == sblock_try[i])) && 35098542Smckusick sblock.fs_ncg >= 1 && 351104745Smckusick sblock.fs_bsize >= MINBSIZE && 352176573Sdelphij sblock.fs_sbsize >= roundup(sizeof(struct fs), dev_bsize)) 35398542Smckusick break; 35498542Smckusick } 35598542Smckusick if (sblock_try[i] == -1) { 356102231Strhodes fprintf(stderr, "Cannot find file system superblock\n"); 35798542Smckusick return (0); 35898542Smckusick } 35998542Smckusick } 3601558Srgrimes /* 361102231Strhodes * Compute block size that the file system is based on, 3621558Srgrimes * according to fsbtodb, and adjust superblock block number 3631558Srgrimes * so we can tell if this is an alternate later. 3641558Srgrimes */ 3651558Srgrimes super *= dev_bsize; 3661558Srgrimes dev_bsize = sblock.fs_fsize / fsbtodb(&sblock, 1); 3671558Srgrimes sblk.b_bno = super / dev_bsize; 36898542Smckusick sblk.b_size = SBLOCKSIZE; 369107518Smckusick if (bflag) 370107518Smckusick goto out; 3711558Srgrimes /* 37294031Smckusick * Compare all fields that should not differ in alternate super block. 3731558Srgrimes * When an alternate super-block is specified this check is skipped. 3741558Srgrimes */ 3751558Srgrimes getblk(&asblk, cgsblock(&sblock, sblock.fs_ncg - 1), sblock.fs_sbsize); 3761558Srgrimes if (asblk.b_errs) 3771558Srgrimes return (0); 37894031Smckusick if (altsblock.fs_sblkno != sblock.fs_sblkno || 37994031Smckusick altsblock.fs_cblkno != sblock.fs_cblkno || 38094031Smckusick altsblock.fs_iblkno != sblock.fs_iblkno || 38194031Smckusick altsblock.fs_dblkno != sblock.fs_dblkno || 38294031Smckusick altsblock.fs_ncg != sblock.fs_ncg || 38394031Smckusick altsblock.fs_bsize != sblock.fs_bsize || 38494031Smckusick altsblock.fs_fsize != sblock.fs_fsize || 38594031Smckusick altsblock.fs_frag != sblock.fs_frag || 38694031Smckusick altsblock.fs_bmask != sblock.fs_bmask || 38794031Smckusick altsblock.fs_fmask != sblock.fs_fmask || 38894031Smckusick altsblock.fs_bshift != sblock.fs_bshift || 38994031Smckusick altsblock.fs_fshift != sblock.fs_fshift || 39094031Smckusick altsblock.fs_fragshift != sblock.fs_fragshift || 39194031Smckusick altsblock.fs_fsbtodb != sblock.fs_fsbtodb || 39294031Smckusick altsblock.fs_sbsize != sblock.fs_sbsize || 39394031Smckusick altsblock.fs_nindir != sblock.fs_nindir || 39494031Smckusick altsblock.fs_inopb != sblock.fs_inopb || 39594031Smckusick altsblock.fs_cssize != sblock.fs_cssize || 39694031Smckusick altsblock.fs_ipg != sblock.fs_ipg || 39794031Smckusick altsblock.fs_fpg != sblock.fs_fpg || 39894031Smckusick altsblock.fs_magic != sblock.fs_magic) { 3991558Srgrimes badsb(listerr, 4001558Srgrimes "VALUES IN SUPER BLOCK DISAGREE WITH THOSE IN FIRST ALTERNATE"); 4011558Srgrimes return (0); 4021558Srgrimes } 403107518Smckusickout: 40498542Smckusick /* 40598542Smckusick * If not yet done, update UFS1 superblock with new wider fields. 40698542Smckusick */ 40798542Smckusick if (sblock.fs_magic == FS_UFS1_MAGIC && 40898542Smckusick sblock.fs_maxbsize != sblock.fs_bsize) { 40998542Smckusick sblock.fs_maxbsize = sblock.fs_bsize; 41098542Smckusick sblock.fs_time = sblock.fs_old_time; 41198542Smckusick sblock.fs_size = sblock.fs_old_size; 41298542Smckusick sblock.fs_dsize = sblock.fs_old_dsize; 41398542Smckusick sblock.fs_csaddr = sblock.fs_old_csaddr; 41498542Smckusick sblock.fs_cstotal.cs_ndir = sblock.fs_old_cstotal.cs_ndir; 41598542Smckusick sblock.fs_cstotal.cs_nbfree = sblock.fs_old_cstotal.cs_nbfree; 41698542Smckusick sblock.fs_cstotal.cs_nifree = sblock.fs_old_cstotal.cs_nifree; 41798542Smckusick sblock.fs_cstotal.cs_nffree = sblock.fs_old_cstotal.cs_nffree; 41898542Smckusick } 4191558Srgrimes havesb = 1; 4201558Srgrimes return (1); 4211558Srgrimes} 4221558Srgrimes 4237585Sbdestatic void 424100935Sphkbadsb(int listerr, const char *s) 4251558Srgrimes{ 4261558Srgrimes 4271558Srgrimes if (!listerr) 4281558Srgrimes return; 4291558Srgrimes if (preen) 4301558Srgrimes printf("%s: ", cdevname); 4311558Srgrimes pfatal("BAD SUPER BLOCK: %s\n", s); 4321558Srgrimes} 4331558Srgrimes 43475884Siedowsevoid 43592839Simpsblock_init(void) 43675557Smckusick{ 43775557Smckusick 43875557Smckusick fswritefd = -1; 43975557Smckusick fsmodified = 0; 44075557Smckusick lfdir = 0; 441247212Smckusick initbarea(&sblk, BT_SUPERBLK); 442247212Smckusick initbarea(&asblk, BT_SUPERBLK); 443248658Smckusick sblk.b_un.b_buf = Malloc(SBLOCKSIZE); 444248658Smckusick asblk.b_un.b_buf = Malloc(SBLOCKSIZE); 44575557Smckusick if (sblk.b_un.b_buf == NULL || asblk.b_un.b_buf == NULL) 44675557Smckusick errx(EEXIT, "cannot allocate space for superblock"); 447276737Simp dev_bsize = secsize = DEV_BSIZE; 44875557Smckusick} 449