boffset.c - 9base - revived minimalist port of Plan 9 userland to Unix
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       ---
       boffset.c (342B)
       ---
            1 #include        "lib9.h"
            2 #include        <bio.h>
            3 
            4 vlong
            5 Boffset(Biobuf *bp)
            6 {
            7         vlong n;
            8 
            9         switch(bp->state) {
           10         default:
           11                 fprint(2, "Boffset: unknown state %d\n", bp->state);
           12                 n = Beof;
           13                 break;
           14 
           15         case Bracteof:
           16         case Bractive:
           17                 n = bp->offset + bp->icount;
           18                 break;
           19 
           20         case Bwactive:
           21                 n = bp->offset + (bp->bsize + bp->ocount);
           22                 break;
           23         }
           24         return n;
           25 }