1/* $NetBSD: dkbad.c,v 1.1.14.3 2004/09/21 13:23:57 skrll 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. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)dkbad.c 7.3 (Berkeley) 5/9/91 31 */ 32#include <sys/cdefs.h> 33__KERNEL_RCSID(0, "$NetBSD: dkbad.c,v 1.1.14.3 2004/09/21 13:23:57 skrll Exp $"); 34 35#ifndef NOBADSECT 36#include <sys/param.h> 37#include <sys/buf.h> 38#include <sys/dkbad.h> 39 40/* 41 * Search the bad sector table looking for 42 * the specified sector. Return index if found. 43 * Return -1 if not found. 44 */ 45 46int 47isbad(struct dkbad *bt, int cyl, int trk, int sec) 48{ 49 int i; 50 long blk, bblk; 51 52 blk = ((long)cyl << 16) + (trk << 8) + sec; 53 for (i = 0; i < 126; i++) { 54 bblk = ((long)bt->bt_bad[i].bt_cyl << 16) + 55 bt->bt_bad[i].bt_trksec; 56 if (blk == bblk) 57 return (i); 58 if (blk < bblk || bblk < 0) 59 break; 60 } 61 return (-1); 62} 63#endif 64