1 /* $NetBSD: dkbad.c,v 1.1 2002/04/21 20:56:33 ragge Exp $ */ 2 /*- 3 * Copyright (c) 1982, 1986 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)dkbad.c 7.3 (Berkeley) 5/9/91 35 */ 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: dkbad.c,v 1.1 2002/04/21 20:56:33 ragge Exp $"); 38 39 #ifndef NOBADSECT 40 #include <sys/param.h> 41 #include <sys/buf.h> 42 #include <sys/dkbad.h> 43 44 /* 45 * Search the bad sector table looking for 46 * the specified sector. Return index if found. 47 * Return -1 if not found. 48 */ 49 50 int 51 isbad(struct dkbad *bt, int cyl, int trk, int sec) 52 { 53 int i; 54 long blk, bblk; 55 56 blk = ((long)cyl << 16) + (trk << 8) + sec; 57 for (i = 0; i < 126; i++) { 58 bblk = ((long)bt->bt_bad[i].bt_cyl << 16) + 59 bt->bt_bad[i].bt_trksec; 60 if (blk == bblk) 61 return (i); 62 if (blk < bblk || bblk < 0) 63 break; 64 } 65 return (-1); 66 } 67 #endif 68