1 /* $OpenBSD: pass4.c,v 1.4 1999/03/01 07:45:18 d Exp $ */ 2 /* $NetBSD: pass4.c,v 1.11 1996/09/27 22:45:17 christos Exp $ */ 3 4 /* 5 * Copyright (c) 1980, 1986, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)pass4.c 8.1 (Berkeley) 6/5/93"; 40 #else 41 static char rcsid[] = "$OpenBSD: pass4.c,v 1.4 1999/03/01 07:45:18 d Exp $"; 42 #endif 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/time.h> 47 #include <ufs/ufs/dinode.h> 48 #include <ufs/ffs/fs.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 53 #include "fsutil.h" 54 #include "fsck.h" 55 #include "extern.h" 56 57 static ino_t info_inumber; 58 59 static int 60 pass4_info(buf, buflen) 61 char * buf; 62 int buflen; 63 { 64 return snprintf(buf, buflen, "phase 4, inode %d/%d", 65 info_inumber, lastino); 66 } 67 68 void 69 pass4() 70 { 71 register ino_t inumber; 72 register struct zlncnt *zlnp; 73 struct dinode *dp; 74 struct inodesc idesc; 75 int n; 76 77 memset(&idesc, 0, sizeof(struct inodesc)); 78 idesc.id_type = ADDR; 79 idesc.id_func = pass4check; 80 info_fn = pass4_info; 81 for (inumber = ROOTINO; inumber <= lastino; inumber++) { 82 info_inumber = inumber; 83 idesc.id_number = inumber; 84 switch (statemap[inumber]) { 85 86 case FSTATE: 87 case DFOUND: 88 n = lncntp[inumber]; 89 if (n) 90 adjust(&idesc, (short)n); 91 else { 92 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 93 if (zlnp->zlncnt == inumber) { 94 zlnp->zlncnt = zlnhead->zlncnt; 95 zlnp = zlnhead; 96 zlnhead = zlnhead->next; 97 free((char *)zlnp); 98 clri(&idesc, "UNREF", 1); 99 break; 100 } 101 } 102 break; 103 104 case DSTATE: 105 clri(&idesc, "UNREF", 1); 106 break; 107 108 case DCLEAR: 109 dp = ginode(inumber); 110 if (dp->di_size == 0) { 111 clri(&idesc, "ZERO LENGTH", 1); 112 break; 113 } 114 /* fall through */ 115 case FCLEAR: 116 clri(&idesc, "BAD/DUP", 1); 117 break; 118 119 case USTATE: 120 break; 121 122 default: 123 errexit("BAD STATE %d FOR INODE I=%d", 124 statemap[inumber], inumber); 125 } 126 } 127 info_fn = NULL; 128 } 129 130 int 131 pass4check(idesc) 132 register struct inodesc *idesc; 133 { 134 register struct dups *dlp; 135 int nfrags, res = KEEPON; 136 daddr_t blkno = idesc->id_blkno; 137 138 for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) { 139 if (chkrange(blkno, 1)) { 140 res = SKIP; 141 } else if (testbmap(blkno)) { 142 for (dlp = duplist; dlp; dlp = dlp->next) { 143 if (dlp->dup != blkno) 144 continue; 145 dlp->dup = duplist->dup; 146 dlp = duplist; 147 duplist = duplist->next; 148 free((char *)dlp); 149 break; 150 } 151 if (dlp == 0) { 152 clrbmap(blkno); 153 n_blks--; 154 } 155 } 156 } 157 return (res); 158 } 159