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Annotation of 43BSDTahoe/sys/vax/dkbad.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)dkbad.c     7.1 (Berkeley) 6/5/86
        !             7:  */
        !             8: 
        !             9: #ifndef NOBADSECT
        !            10: #include "param.h"
        !            11: #include "buf.h"
        !            12: #include "dkbad.h"
        !            13: 
        !            14: /*
        !            15:  * Search the bad sector table looking for
        !            16:  * the specified sector.  Return index if found.
        !            17:  * Return -1 if not found.
        !            18:  */
        !            19: 
        !            20: isbad(bt, cyl, trk, sec)
        !            21:        register struct dkbad *bt;
        !            22: {
        !            23:        register int i;
        !            24:        register long blk, bblk;
        !            25: 
        !            26:        blk = ((long)cyl << 16) + (trk << 8) + sec;
        !            27:        for (i = 0; i < 126; i++) {
        !            28:                bblk = ((long)bt->bt_bad[i].bt_cyl << 16) + bt->bt_bad[i].bt_trksec;
        !            29:                if (blk == bblk)
        !            30:                        return (i);
        !            31:                if (blk < bblk || bblk < 0)
        !            32:                        break;
        !            33:        }
        !            34:        return (-1);
        !            35: }
        !            36: #endif

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