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Annotation of 43BSDReno/sys/hp300/dkbad.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution is only permitted until one year after the first shipment
                      6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
                      7:  * binary forms are permitted provided that: (1) source distributions retain
                      8:  * this entire copyright notice and comment, and (2) distributions including
                      9:  * binaries display the following acknowledgement:  This product includes
                     10:  * software developed by the University of California, Berkeley and its
                     11:  * contributors'' in the documentation or other materials provided with the
                     12:  * distribution and in all advertising materials mentioning features or use
                     13:  * of this software.  Neither the name of the University nor the names of
                     14:  * its contributors may be used to endorse or promote products derived from
                     15:  * this software without specific prior written permission.
                     16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     19:  *
                     20:  *     @(#)dkbad.c     7.1 (Berkeley) 5/8/90
                     21:  */
                     22: 
                     23: #ifndef NOBADSECT
                     24: #include "param.h"
                     25: #include "buf.h"
                     26: #include "dkbad.h"
                     27: 
                     28: /*
                     29:  * Search the bad sector table looking for
                     30:  * the specified sector.  Return index if found.
                     31:  * Return -1 if not found.
                     32:  */
                     33: 
                     34: isbad(bt, cyl, trk, sec)
                     35:        register struct dkbad *bt;
                     36: {
                     37:        register int i;
                     38:        register long blk, bblk;
                     39: 
                     40:        blk = ((long)cyl << 16) + (trk << 8) + sec;
                     41:        for (i = 0; i < 126; i++) {
                     42:                bblk = ((long)bt->bt_bad[i].bt_cyl << 16) + bt->bt_bad[i].bt_trksec;
                     43:                if (blk == bblk)
                     44:                        return (i);
                     45:                if (blk < bblk || bblk < 0)
                     46:                        break;
                     47:        }
                     48:        return (-1);
                     49: }
                     50: #endif

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