fsutil.c revision 98542
166864Sadrian/* 266864Sadrian * Copyright (c) 1980, 1986, 1993 366864Sadrian * The Regents of the University of California. All rights reserved. 466864Sadrian * 566864Sadrian * Redistribution and use in source and binary forms, with or without 666864Sadrian * modification, are permitted provided that the following conditions 766864Sadrian * are met: 866864Sadrian * 1. Redistributions of source code must retain the above copyright 966864Sadrian * notice, this list of conditions and the following disclaimer. 1066864Sadrian * 2. Redistributions in binary form must reproduce the above copyright 1166864Sadrian * notice, this list of conditions and the following disclaimer in the 1266864Sadrian * documentation and/or other materials provided with the distribution. 1366864Sadrian * 3. All advertising materials mentioning features or use of this software 1466864Sadrian * must display the following acknowledgement: 1566864Sadrian * This product includes software developed by the University of 1666864Sadrian * California, Berkeley and its contributors. 1766864Sadrian * 4. Neither the name of the University nor the names of its contributors 1866864Sadrian * may be used to endorse or promote products derived from this software 1966864Sadrian * without specific prior written permission. 2066864Sadrian * 2166864Sadrian * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2266864Sadrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2366864Sadrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2466864Sadrian * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2566864Sadrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2666864Sadrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2766864Sadrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2866864Sadrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2966864Sadrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3066864Sadrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3166864Sadrian * SUCH DAMAGE. 3266864Sadrian */ 3366864Sadrian 3466864Sadrian#ifndef lint 3566864Sadrian#if 0 3666864Sadrianstatic const char sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95"; 3766864Sadrian#endif 3866864Sadrianstatic const char rcsid[] = 3966866Sadrian "$FreeBSD: head/sbin/fsck_ffs/fsutil.c 98542 2002-06-21 06:18:05Z mckusick $"; 4066864Sadrian#endif /* not lint */ 4166864Sadrian 4266864Sadrian#include <sys/param.h> 4366864Sadrian#include <sys/types.h> 4486514Siedowse#include <sys/sysctl.h> 4598542Smckusick#include <sys/disklabel.h> 4666864Sadrian#include <sys/stat.h> 4796475Sphk#include <sys/disklabel.h> 4866864Sadrian 4966864Sadrian#include <ufs/ufs/dinode.h> 5066864Sadrian#include <ufs/ufs/dir.h> 5166864Sadrian#include <ufs/ffs/fs.h> 5266864Sadrian 5366864Sadrian#include <err.h> 5466864Sadrian#include <errno.h> 5566864Sadrian#include <string.h> 5666864Sadrian#include <ctype.h> 5766864Sadrian#include <fstab.h> 5866864Sadrian#include <stdio.h> 5966864Sadrian#include <stdlib.h> 6066864Sadrian#include <unistd.h> 6166864Sadrian 6266864Sadrian#include "fsck.h" 6366864Sadrian 6466864Sadrianlong diskreads, totalreads; /* Disk cache statistics */ 6566864Sadrian 6666864Sadrianint 6798542Smckusickftypeok(union dinode *dp) 6866864Sadrian{ 6998542Smckusick switch (DIP(dp, di_mode) & IFMT) { 7066864Sadrian 7166864Sadrian case IFDIR: 7266864Sadrian case IFREG: 7366864Sadrian case IFBLK: 7466864Sadrian case IFCHR: 7566864Sadrian case IFLNK: 7666864Sadrian case IFSOCK: 7766864Sadrian case IFIFO: 7866864Sadrian return (1); 7966864Sadrian 8066864Sadrian default: 8166864Sadrian if (debug) 8298542Smckusick printf("bad file type 0%o\n", DIP(dp, di_mode)); 8366864Sadrian return (0); 8466864Sadrian } 8566864Sadrian} 8666864Sadrian 8766864Sadrianint 8892839Simpreply(char *question) 8966864Sadrian{ 9066864Sadrian int persevere; 9166864Sadrian char c; 9266864Sadrian 9366864Sadrian if (preen) 9466864Sadrian pfatal("INTERNAL ERROR: GOT TO reply()"); 9566864Sadrian persevere = !strcmp(question, "CONTINUE"); 9666864Sadrian printf("\n"); 9774556Smckusick if (!persevere && (nflag || (fswritefd < 0 && bkgrdflag == 0))) { 9866864Sadrian printf("%s? no\n\n", question); 9966864Sadrian resolved = 0; 10066864Sadrian return (0); 10166864Sadrian } 10266864Sadrian if (yflag || (persevere && nflag)) { 10366864Sadrian printf("%s? yes\n\n", question); 10466864Sadrian return (1); 10566864Sadrian } 10666864Sadrian do { 10766864Sadrian printf("%s? [yn] ", question); 10866864Sadrian (void) fflush(stdout); 10966864Sadrian c = getc(stdin); 11066864Sadrian while (c != '\n' && getc(stdin) != '\n') { 11166864Sadrian if (feof(stdin)) { 11266864Sadrian resolved = 0; 11366864Sadrian return (0); 11466864Sadrian } 11566864Sadrian } 11666864Sadrian } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N'); 11766864Sadrian printf("\n"); 11866864Sadrian if (c == 'y' || c == 'Y') 11966864Sadrian return (1); 12066864Sadrian resolved = 0; 12166864Sadrian return (0); 12266864Sadrian} 12366864Sadrian 12466864Sadrian/* 12566864Sadrian * Look up state information for an inode. 12666864Sadrian */ 12766864Sadrianstruct inostat * 12892839Simpinoinfo(ino_t inum) 12966864Sadrian{ 13066864Sadrian static struct inostat unallocated = { USTATE, 0, 0 }; 13166864Sadrian struct inostatlist *ilp; 13266864Sadrian int iloff; 13366864Sadrian 13466864Sadrian if (inum > maxino) 13566864Sadrian errx(EEXIT, "inoinfo: inumber %d out of range", inum); 13666864Sadrian ilp = &inostathead[inum / sblock.fs_ipg]; 13766864Sadrian iloff = inum % sblock.fs_ipg; 13866864Sadrian if (iloff >= ilp->il_numalloced) 13966864Sadrian return (&unallocated); 14066864Sadrian return (&ilp->il_stat[iloff]); 14166864Sadrian} 14266864Sadrian 14366864Sadrian/* 14466864Sadrian * Malloc buffers and set up cache. 14566864Sadrian */ 14666864Sadrianvoid 14792839Simpbufinit(void) 14866864Sadrian{ 14992806Sobrien struct bufarea *bp; 15066864Sadrian long bufcnt, i; 15166864Sadrian char *bufp; 15266864Sadrian 15366864Sadrian pbp = pdirbp = (struct bufarea *)0; 15466864Sadrian bufp = malloc((unsigned int)sblock.fs_bsize); 15566864Sadrian if (bufp == 0) 15666864Sadrian errx(EEXIT, "cannot allocate buffer pool"); 15766864Sadrian cgblk.b_un.b_buf = bufp; 15866864Sadrian initbarea(&cgblk); 15966864Sadrian bufhead.b_next = bufhead.b_prev = &bufhead; 16066864Sadrian bufcnt = MAXBUFSPACE / sblock.fs_bsize; 16166864Sadrian if (bufcnt < MINBUFS) 16266864Sadrian bufcnt = MINBUFS; 16366864Sadrian for (i = 0; i < bufcnt; i++) { 16466864Sadrian bp = (struct bufarea *)malloc(sizeof(struct bufarea)); 16566864Sadrian bufp = malloc((unsigned int)sblock.fs_bsize); 16666864Sadrian if (bp == NULL || bufp == NULL) { 16766864Sadrian if (i >= MINBUFS) 16866864Sadrian break; 16966864Sadrian errx(EEXIT, "cannot allocate buffer pool"); 17066864Sadrian } 17166864Sadrian bp->b_un.b_buf = bufp; 17266864Sadrian bp->b_prev = &bufhead; 17366864Sadrian bp->b_next = bufhead.b_next; 17466864Sadrian bufhead.b_next->b_prev = bp; 17566864Sadrian bufhead.b_next = bp; 17666864Sadrian initbarea(bp); 17766864Sadrian } 17866864Sadrian bufhead.b_size = i; /* save number of buffers */ 17966864Sadrian} 18066864Sadrian 18166864Sadrian/* 18266864Sadrian * Manage a cache of directory blocks. 18366864Sadrian */ 18466864Sadrianstruct bufarea * 18598542Smckusickgetdatablk(ufs2_daddr_t blkno, long size) 18666864Sadrian{ 18792806Sobrien struct bufarea *bp; 18866864Sadrian 18966864Sadrian for (bp = bufhead.b_next; bp != &bufhead; bp = bp->b_next) 19066864Sadrian if (bp->b_bno == fsbtodb(&sblock, blkno)) 19166864Sadrian goto foundit; 19266864Sadrian for (bp = bufhead.b_prev; bp != &bufhead; bp = bp->b_prev) 19366864Sadrian if ((bp->b_flags & B_INUSE) == 0) 19466864Sadrian break; 19566864Sadrian if (bp == &bufhead) 19666864Sadrian errx(EEXIT, "deadlocked buffer pool"); 19766864Sadrian getblk(bp, blkno, size); 19866864Sadrian /* fall through */ 19966864Sadrianfoundit: 20066864Sadrian bp->b_prev->b_next = bp->b_next; 20166864Sadrian bp->b_next->b_prev = bp->b_prev; 20266864Sadrian bp->b_prev = &bufhead; 20366864Sadrian bp->b_next = bufhead.b_next; 20466864Sadrian bufhead.b_next->b_prev = bp; 20566864Sadrian bufhead.b_next = bp; 20666864Sadrian bp->b_flags |= B_INUSE; 20766864Sadrian return (bp); 20866864Sadrian} 20966864Sadrian 21066864Sadrianvoid 21198542Smckusickgetblk(struct bufarea *bp, ufs2_daddr_t blk, long size) 21266864Sadrian{ 21398542Smckusick ufs2_daddr_t dblk; 21466864Sadrian 21595897Smckusick totalreads++; 21666864Sadrian dblk = fsbtodb(&sblock, blk); 21766864Sadrian if (bp->b_bno != dblk) { 21866864Sadrian flush(fswritefd, bp); 21966864Sadrian diskreads++; 22066864Sadrian bp->b_errs = bread(fsreadfd, bp->b_un.b_buf, dblk, size); 22166864Sadrian bp->b_bno = dblk; 22266864Sadrian bp->b_size = size; 22366864Sadrian } 22466864Sadrian} 22566864Sadrian 22666864Sadrianvoid 22792839Simpflush(int fd, struct bufarea *bp) 22866864Sadrian{ 22992806Sobrien int i, j; 23066864Sadrian 23166864Sadrian if (!bp->b_dirty) 23266864Sadrian return; 23374556Smckusick bp->b_dirty = 0; 23474556Smckusick if (fswritefd < 0) { 23574556Smckusick pfatal("WRITING IN READ_ONLY MODE.\n"); 23674556Smckusick return; 23774556Smckusick } 23866864Sadrian if (bp->b_errs != 0) 23966864Sadrian pfatal("WRITING %sZERO'ED BLOCK %d TO DISK\n", 24066864Sadrian (bp->b_errs == bp->b_size / dev_bsize) ? "" : "PARTIALLY ", 24166864Sadrian bp->b_bno); 24266864Sadrian bp->b_errs = 0; 24366864Sadrian bwrite(fd, bp->b_un.b_buf, bp->b_bno, (long)bp->b_size); 24466864Sadrian if (bp != &sblk) 24566864Sadrian return; 24666864Sadrian for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) { 24771073Siedowse bwrite(fswritefd, (char *)sblock.fs_csp + i, 24866864Sadrian fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag), 24966864Sadrian sblock.fs_cssize - i < sblock.fs_bsize ? 25066864Sadrian sblock.fs_cssize - i : sblock.fs_bsize); 25166864Sadrian } 25266864Sadrian} 25366864Sadrian 25474556Smckusickvoid 25598542Smckusickrwerror(char *mesg, ufs2_daddr_t blk) 25666864Sadrian{ 25766864Sadrian 25875927Smckusick if (bkgrdcheck) 25975927Smckusick exit(EEXIT); 26066864Sadrian if (preen == 0) 26166864Sadrian printf("\n"); 26286514Siedowse pfatal("CANNOT %s: %ld", mesg, (long)blk); 26366864Sadrian if (reply("CONTINUE") == 0) 26466864Sadrian exit(EEXIT); 26566864Sadrian} 26666864Sadrian 26766864Sadrianvoid 26892839Simpckfini(int markclean) 26966864Sadrian{ 27092806Sobrien struct bufarea *bp, *nbp; 27166864Sadrian int ofsmodified, cnt = 0; 27266864Sadrian 27374556Smckusick if (bkgrdflag) { 27474556Smckusick unlink(snapname); 27574556Smckusick if ((!(sblock.fs_flags & FS_UNCLEAN)) != markclean) { 27674556Smckusick cmd.value = FS_UNCLEAN; 27774556Smckusick cmd.size = markclean ? -1 : 1; 27874556Smckusick if (sysctlbyname("vfs.ffs.setflags", 0, 0, 27974556Smckusick &cmd, sizeof cmd) == -1) 28074556Smckusick rwerror("SET FILESYSTEM FLAGS", FS_UNCLEAN); 28174556Smckusick if (!preen) { 28274556Smckusick printf("\n***** FILE SYSTEM MARKED %s *****\n", 28374556Smckusick markclean ? "CLEAN" : "DIRTY"); 28474556Smckusick if (!markclean) 28574556Smckusick rerun = 1; 28674556Smckusick } 28774556Smckusick } else if (!preen && !markclean) { 28874556Smckusick printf("\n***** FILE SYSTEM STILL DIRTY *****\n"); 28974556Smckusick rerun = 1; 29074556Smckusick } 29174556Smckusick } 29266864Sadrian if (fswritefd < 0) { 29366864Sadrian (void)close(fsreadfd); 29466864Sadrian return; 29566864Sadrian } 29666864Sadrian flush(fswritefd, &sblk); 29798542Smckusick if (havesb && cursnapshot == 0 && sblock.fs_magic == FS_UFS2_MAGIC && 29898542Smckusick sblk.b_bno != fsbtodb(&sblock, sblock.fs_sblockloc) && 29966864Sadrian !preen && reply("UPDATE STANDARD SUPERBLOCK")) { 30098542Smckusick sblk.b_bno = fsbtodb(&sblock, sblock.fs_sblockloc); 30166864Sadrian sbdirty(); 30266864Sadrian flush(fswritefd, &sblk); 30366864Sadrian } 30466864Sadrian flush(fswritefd, &cgblk); 30566864Sadrian free(cgblk.b_un.b_buf); 30666864Sadrian for (bp = bufhead.b_prev; bp && bp != &bufhead; bp = nbp) { 30766864Sadrian cnt++; 30866864Sadrian flush(fswritefd, bp); 30966864Sadrian nbp = bp->b_prev; 31066864Sadrian free(bp->b_un.b_buf); 31166864Sadrian free((char *)bp); 31266864Sadrian } 31366864Sadrian if (bufhead.b_size != cnt) 31466864Sadrian errx(EEXIT, "panic: lost %d buffers", bufhead.b_size - cnt); 31566864Sadrian pbp = pdirbp = (struct bufarea *)0; 31674556Smckusick if (cursnapshot == 0 && sblock.fs_clean != markclean) { 31775557Smckusick if ((sblock.fs_clean = markclean) != 0) 31875557Smckusick sblock.fs_flags &= ~(FS_UNCLEAN | FS_NEEDSFSCK); 31966864Sadrian sbdirty(); 32066864Sadrian ofsmodified = fsmodified; 32166864Sadrian flush(fswritefd, &sblk); 32266864Sadrian fsmodified = ofsmodified; 32366864Sadrian if (!preen) { 32466864Sadrian printf("\n***** FILE SYSTEM MARKED %s *****\n", 32566864Sadrian markclean ? "CLEAN" : "DIRTY"); 32666864Sadrian if (!markclean) 32766864Sadrian rerun = 1; 32866864Sadrian } 32966864Sadrian } else if (!preen && !markclean) { 33066864Sadrian printf("\n***** FILE SYSTEM STILL DIRTY *****\n"); 33166864Sadrian rerun = 1; 33266864Sadrian } 33375557Smckusick if (debug && totalreads > 0) 33466864Sadrian printf("cache missed %ld of %ld (%d%%)\n", diskreads, 33566864Sadrian totalreads, (int)(diskreads * 100 / totalreads)); 33666864Sadrian (void)close(fsreadfd); 33766864Sadrian (void)close(fswritefd); 33866864Sadrian} 33966864Sadrian 34066864Sadrianint 34198542Smckusickbread(int fd, char *buf, ufs2_daddr_t blk, long size) 34266864Sadrian{ 34366864Sadrian char *cp; 34466864Sadrian int i, errs; 34566864Sadrian off_t offset; 34666864Sadrian 34766864Sadrian offset = blk; 34866864Sadrian offset *= dev_bsize; 34966864Sadrian if (lseek(fd, offset, 0) < 0) 35074556Smckusick rwerror("SEEK BLK", blk); 35166864Sadrian else if (read(fd, buf, (int)size) == size) 35266864Sadrian return (0); 35374556Smckusick rwerror("READ BLK", blk); 35466864Sadrian if (lseek(fd, offset, 0) < 0) 35574556Smckusick rwerror("SEEK BLK", blk); 35666864Sadrian errs = 0; 35766864Sadrian memset(buf, 0, (size_t)size); 35866864Sadrian printf("THE FOLLOWING DISK SECTORS COULD NOT BE READ:"); 35966864Sadrian for (cp = buf, i = 0; i < size; i += secsize, cp += secsize) { 36066864Sadrian if (read(fd, cp, (int)secsize) != secsize) { 36166864Sadrian (void)lseek(fd, offset + i + secsize, 0); 36266864Sadrian if (secsize != dev_bsize && dev_bsize != 1) 36366864Sadrian printf(" %ld (%ld),", 36466864Sadrian (blk * dev_bsize + i) / secsize, 36566864Sadrian blk + i / dev_bsize); 36666864Sadrian else 36766864Sadrian printf(" %ld,", blk + i / dev_bsize); 36866864Sadrian errs++; 36966864Sadrian } 37066864Sadrian } 37166864Sadrian printf("\n"); 37266864Sadrian if (errs) 37366864Sadrian resolved = 0; 37466864Sadrian return (errs); 37566864Sadrian} 37666864Sadrian 37766864Sadrianvoid 37898542Smckusickbwrite(int fd, char *buf, ufs2_daddr_t blk, long size) 37966864Sadrian{ 38066864Sadrian int i; 38166864Sadrian char *cp; 38266864Sadrian off_t offset; 38366864Sadrian 38466864Sadrian if (fd < 0) 38566864Sadrian return; 38666864Sadrian offset = blk; 38766864Sadrian offset *= dev_bsize; 38866864Sadrian if (lseek(fd, offset, 0) < 0) 38974556Smckusick rwerror("SEEK BLK", blk); 39066864Sadrian else if (write(fd, buf, (int)size) == size) { 39166864Sadrian fsmodified = 1; 39266864Sadrian return; 39366864Sadrian } 39466864Sadrian resolved = 0; 39574556Smckusick rwerror("WRITE BLK", blk); 39666864Sadrian if (lseek(fd, offset, 0) < 0) 39774556Smckusick rwerror("SEEK BLK", blk); 39866864Sadrian printf("THE FOLLOWING SECTORS COULD NOT BE WRITTEN:"); 39966864Sadrian for (cp = buf, i = 0; i < size; i += dev_bsize, cp += dev_bsize) 40066864Sadrian if (write(fd, cp, (int)dev_bsize) != dev_bsize) { 40166864Sadrian (void)lseek(fd, offset + i + dev_bsize, 0); 40266864Sadrian printf(" %ld,", blk + i / dev_bsize); 40366864Sadrian } 40466864Sadrian printf("\n"); 40566864Sadrian return; 40666864Sadrian} 40766864Sadrian 40866864Sadrian/* 40966864Sadrian * allocate a data block with the specified number of fragments 41066864Sadrian */ 41198542Smckusickufs2_daddr_t 41292839Simpallocblk(long frags) 41366864Sadrian{ 41466864Sadrian int i, j, k, cg, baseblk; 41566864Sadrian struct cg *cgp = &cgrp; 41666864Sadrian 41766864Sadrian if (frags <= 0 || frags > sblock.fs_frag) 41866864Sadrian return (0); 41966864Sadrian for (i = 0; i < maxfsblock - sblock.fs_frag; i += sblock.fs_frag) { 42066864Sadrian for (j = 0; j <= sblock.fs_frag - frags; j++) { 42166864Sadrian if (testbmap(i + j)) 42266864Sadrian continue; 42366864Sadrian for (k = 1; k < frags; k++) 42466864Sadrian if (testbmap(i + j + k)) 42566864Sadrian break; 42666864Sadrian if (k < frags) { 42766864Sadrian j += k; 42866864Sadrian continue; 42966864Sadrian } 43066864Sadrian cg = dtog(&sblock, i + j); 43166864Sadrian getblk(&cgblk, cgtod(&sblock, cg), sblock.fs_cgsize); 43266864Sadrian if (!cg_chkmagic(cgp)) 43366864Sadrian pfatal("CG %d: BAD MAGIC NUMBER\n", cg); 43466864Sadrian baseblk = dtogd(&sblock, i + j); 43566864Sadrian for (k = 0; k < frags; k++) { 43666864Sadrian setbmap(i + j + k); 43766864Sadrian clrbit(cg_blksfree(cgp), baseblk + k); 43866864Sadrian } 43966864Sadrian n_blks += frags; 44066864Sadrian if (frags == sblock.fs_frag) 44166864Sadrian cgp->cg_cs.cs_nbfree--; 44266864Sadrian else 44366864Sadrian cgp->cg_cs.cs_nffree -= frags; 44466864Sadrian cgdirty(); 44566864Sadrian return (i + j); 44666864Sadrian } 44766864Sadrian } 44866864Sadrian return (0); 44966864Sadrian} 45066864Sadrian 45166864Sadrian/* 45266864Sadrian * Free a previously allocated block 45366864Sadrian */ 45466864Sadrianvoid 45598542Smckusickfreeblk(ufs2_daddr_t blkno, long frags) 45666864Sadrian{ 45766864Sadrian struct inodesc idesc; 45866864Sadrian 45966864Sadrian idesc.id_blkno = blkno; 46066864Sadrian idesc.id_numfrags = frags; 46166864Sadrian (void)pass4check(&idesc); 46266864Sadrian} 46366864Sadrian 46466864Sadrian/* 46566864Sadrian * Find a pathname 46666864Sadrian */ 46766864Sadrianvoid 46892839Simpgetpathname(char *namebuf, ino_t curdir, ino_t ino) 46966864Sadrian{ 47066864Sadrian int len; 47192806Sobrien char *cp; 47266864Sadrian struct inodesc idesc; 47366864Sadrian static int busy = 0; 47466864Sadrian 47566864Sadrian if (curdir == ino && ino == ROOTINO) { 47666864Sadrian (void)strcpy(namebuf, "/"); 47766864Sadrian return; 47866864Sadrian } 47966864Sadrian if (busy || 48066864Sadrian (inoinfo(curdir)->ino_state != DSTATE && 48166864Sadrian inoinfo(curdir)->ino_state != DFOUND)) { 48266864Sadrian (void)strcpy(namebuf, "?"); 48366864Sadrian return; 48466864Sadrian } 48566864Sadrian busy = 1; 48666864Sadrian memset(&idesc, 0, sizeof(struct inodesc)); 48766864Sadrian idesc.id_type = DATA; 48866864Sadrian idesc.id_fix = IGNORE; 48966864Sadrian cp = &namebuf[MAXPATHLEN - 1]; 49066864Sadrian *cp = '\0'; 49166864Sadrian if (curdir != ino) { 49266864Sadrian idesc.id_parent = curdir; 49366864Sadrian goto namelookup; 49466864Sadrian } 49566864Sadrian while (ino != ROOTINO) { 49666864Sadrian idesc.id_number = ino; 49766864Sadrian idesc.id_func = findino; 49866864Sadrian idesc.id_name = ".."; 49966864Sadrian if ((ckinode(ginode(ino), &idesc) & FOUND) == 0) 50066864Sadrian break; 50166864Sadrian namelookup: 50266864Sadrian idesc.id_number = idesc.id_parent; 50366864Sadrian idesc.id_parent = ino; 50466864Sadrian idesc.id_func = findname; 50566864Sadrian idesc.id_name = namebuf; 50666864Sadrian if ((ckinode(ginode(idesc.id_number), &idesc)&FOUND) == 0) 50766864Sadrian break; 50866864Sadrian len = strlen(namebuf); 50966864Sadrian cp -= len; 51066864Sadrian memmove(cp, namebuf, (size_t)len); 51166864Sadrian *--cp = '/'; 51266864Sadrian if (cp < &namebuf[MAXNAMLEN]) 51366864Sadrian break; 51466864Sadrian ino = idesc.id_number; 51566864Sadrian } 51666864Sadrian busy = 0; 51766864Sadrian if (ino != ROOTINO) 51866864Sadrian *--cp = '?'; 51966864Sadrian memmove(namebuf, cp, (size_t)(&namebuf[MAXPATHLEN] - cp)); 52066864Sadrian} 52166864Sadrian 52266864Sadrianvoid 52392839Simpcatch(int sig) 52466864Sadrian{ 52596483Sphk 52696483Sphk ckfini(0); 52766864Sadrian exit(12); 52866864Sadrian} 52966864Sadrian 53066864Sadrian/* 53166864Sadrian * When preening, allow a single quit to signal 53266864Sadrian * a special exit after filesystem checks complete 53366864Sadrian * so that reboot sequence may be interrupted. 53466864Sadrian */ 53566864Sadrianvoid 53692839Simpcatchquit(int sig) 53766864Sadrian{ 53866864Sadrian printf("returning to single-user after filesystem check\n"); 53966864Sadrian returntosingle = 1; 54066864Sadrian (void)signal(SIGQUIT, SIG_DFL); 54166864Sadrian} 54266864Sadrian 54366864Sadrian/* 54466864Sadrian * determine whether an inode should be fixed. 54566864Sadrian */ 54666864Sadrianint 54792839Simpdofix(struct inodesc *idesc, char *msg) 54866864Sadrian{ 54966864Sadrian 55066864Sadrian switch (idesc->id_fix) { 55166864Sadrian 55266864Sadrian case DONTKNOW: 55366864Sadrian if (idesc->id_type == DATA) 55466864Sadrian direrror(idesc->id_number, msg); 55566864Sadrian else 55681911Skris pwarn("%s", msg); 55766864Sadrian if (preen) { 55866864Sadrian printf(" (SALVAGED)\n"); 55966864Sadrian idesc->id_fix = FIX; 56066864Sadrian return (ALTERED); 56166864Sadrian } 56266864Sadrian if (reply("SALVAGE") == 0) { 56366864Sadrian idesc->id_fix = NOFIX; 56466864Sadrian return (0); 56566864Sadrian } 56666864Sadrian idesc->id_fix = FIX; 56766864Sadrian return (ALTERED); 56866864Sadrian 56966864Sadrian case FIX: 57066864Sadrian return (ALTERED); 57166864Sadrian 57266864Sadrian case NOFIX: 57366864Sadrian case IGNORE: 57466864Sadrian return (0); 57566864Sadrian 57666864Sadrian default: 57766864Sadrian errx(EEXIT, "UNKNOWN INODESC FIX MODE %d", idesc->id_fix); 57866864Sadrian } 57966864Sadrian /* NOTREACHED */ 58066864Sadrian return (0); 58166864Sadrian} 58266864Sadrian 58366864Sadrian#include <stdarg.h> 58466864Sadrian 58566864Sadrian/* 58666864Sadrian * An unexpected inconsistency occured. 58766864Sadrian * Die if preening or filesystem is running with soft dependency protocol, 58866864Sadrian * otherwise just print message and continue. 58966864Sadrian */ 59066864Sadrianvoid 59166864Sadrianpfatal(const char *fmt, ...) 59266864Sadrian{ 59366864Sadrian va_list ap; 59466864Sadrian va_start(ap, fmt); 59566864Sadrian if (!preen) { 59675927Smckusick (void)vfprintf(stdout, fmt, ap); 59766864Sadrian va_end(ap); 59866864Sadrian if (usedsoftdep) 59975927Smckusick (void)fprintf(stdout, 60066864Sadrian "\nUNEXPECTED SOFT UPDATE INCONSISTENCY\n"); 60175557Smckusick /* 60275557Smckusick * Force foreground fsck to clean up inconsistency. 60375557Smckusick */ 60475557Smckusick if (bkgrdflag) { 60575557Smckusick cmd.value = FS_NEEDSFSCK; 60675557Smckusick cmd.size = 1; 60775557Smckusick if (sysctlbyname("vfs.ffs.setflags", 0, 0, 60875557Smckusick &cmd, sizeof cmd) == -1) 60975557Smckusick pwarn("CANNOT SET FS_NEEDSFSCK FLAG\n"); 61075927Smckusick fprintf(stdout, "CANNOT RUN IN BACKGROUND\n"); 61175557Smckusick ckfini(0); 61275557Smckusick exit(EEXIT); 61375557Smckusick } 61466864Sadrian return; 61566864Sadrian } 61666864Sadrian if (cdevname == NULL) 61766864Sadrian cdevname = "fsck"; 61875927Smckusick (void)fprintf(stdout, "%s: ", cdevname); 61975927Smckusick (void)vfprintf(stdout, fmt, ap); 62075927Smckusick (void)fprintf(stdout, 62166864Sadrian "\n%s: UNEXPECTED%sINCONSISTENCY; RUN fsck MANUALLY.\n", 62266864Sadrian cdevname, usedsoftdep ? " SOFT UPDATE " : " "); 62375557Smckusick /* 62475557Smckusick * Force foreground fsck to clean up inconsistency. 62575557Smckusick */ 62675557Smckusick if (bkgrdflag) { 62775557Smckusick cmd.value = FS_NEEDSFSCK; 62875557Smckusick cmd.size = 1; 62975557Smckusick if (sysctlbyname("vfs.ffs.setflags", 0, 0, 63075557Smckusick &cmd, sizeof cmd) == -1) 63175557Smckusick pwarn("CANNOT SET FS_NEEDSFSCK FLAG\n"); 63275557Smckusick } 63366864Sadrian ckfini(0); 63466864Sadrian exit(EEXIT); 63566864Sadrian} 63666864Sadrian 63766864Sadrian/* 63866864Sadrian * Pwarn just prints a message when not preening or running soft dependency 63966864Sadrian * protocol, or a warning (preceded by filename) when preening. 64066864Sadrian */ 64166864Sadrianvoid 64266864Sadrianpwarn(const char *fmt, ...) 64366864Sadrian{ 64466864Sadrian va_list ap; 64566864Sadrian va_start(ap, fmt); 64666864Sadrian if (preen) 64775927Smckusick (void)fprintf(stdout, "%s: ", cdevname); 64875927Smckusick (void)vfprintf(stdout, fmt, ap); 64966864Sadrian va_end(ap); 65066864Sadrian} 65166864Sadrian 65266864Sadrian/* 65366864Sadrian * Stub for routines from kernel. 65466864Sadrian */ 65566864Sadrianvoid 65666864Sadrianpanic(const char *fmt, ...) 65766864Sadrian{ 65866864Sadrian va_list ap; 65966864Sadrian va_start(ap, fmt); 66066864Sadrian pfatal("INTERNAL INCONSISTENCY:"); 66175927Smckusick (void)vfprintf(stdout, fmt, ap); 66266864Sadrian va_end(ap); 66366864Sadrian exit(EEXIT); 66466864Sadrian} 665