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Annotation of 41BSD/4.0.upgrade/sys/dev/dkbad.c, revision 1.1.1.1

1.1       root        1: /*     dkbad.c 4.3     81/05/10        */
                      2: 
                      3: #ifndef NOBADSECT
                      4: #include "../h/param.h"
                      5: #include "../h/buf.h"
                      6: #include "../h/dkbad.h"
                      7: 
                      8: /*
                      9:  * Search the bad sector table looking for
                     10:  * the specified sector.  Return index if found.
                     11:  * Return -1 if not found.
                     12:  */
                     13: 
                     14: isbad(bt, cyl, trk, sec)
                     15:        register struct dkbad *bt;
                     16: {
                     17:        register int i;
                     18:        register long blk, bblk;
                     19: 
                     20:        blk = ((long)cyl << 16) + (trk << 8) + sec;
                     21:        for (i = 0; i < 126; i++) {
                     22:                bblk = ((long)bt->bt_bad[i].bt_cyl << 16) + bt->bt_bad[i].bt_trksec;
                     23:                if (blk == bblk)
                     24:                        return (i);
                     25:                if (blk < bblk || bblk < 0)
                     26:                        break;
                     27:        }
                     28:        return (-1);
                     29: }
                     30: #endif

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