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Annotation of researchv10dc/cmd/oworm/oscsi/search.c, revision 1.1

1.1     ! root        1: #include       "scsi.h"
        !             2: 
        !             3: static
        !             4: srch(drive, blk, nblk, blank)
        !             5: {
        !             6:        struct scsi_i input;
        !             7:        struct scsi_o output;
        !             8:        int addr;
        !             9: 
        !            10:        input.bus_id = 1<<scsi_id;
        !            11:        input.cmd[0] = blank? 0x2C:0x2D;
        !            12:        input.cmd[1] = drive<<5;
        !            13:        input.cmd[2] = blk>>24;
        !            14:        input.cmd[3] = blk>>16;
        !            15:        input.cmd[4] = blk>>8;
        !            16:        input.cmd[5] = blk;
        !            17:        input.cmd[6] = 0;
        !            18:        input.cmd[7] = 0;
        !            19:        input.cmd[8] = 0;
        !            20:        input.cmd[9] = 0;
        !            21:        if(scsiio(&input, &output, 6, "?search") < 0)
        !            22:                return(-1);
        !            23:        if(CHECK(output)){
        !            24:                scsidump(&output);
        !            25:                return(-1);
        !            26:        }
        !            27:        if(output.data[0] != 0x80){
        !            28:                fprint(2, "%csearch error: ad %sval, class=0x%x code=0x%x\n",
        !            29:                        blank?'b':'w', (output.data[0]&0x80)?"":"in",
        !            30:                        (output.data[0]>>4)&7, output.data[0]&0xF);
        !            31:                return(-1);
        !            32:        }
        !            33:        addr = ULONG((&output.data[2]))-blk;
        !            34:        if(output.data[1]&0x01)
        !            35:                if(addr < nblk)
        !            36:                        return(addr);
        !            37:        return(nblk);
        !            38: }
        !            39: 
        !            40: s_bsearch(drive, base, nblk)
        !            41: {
        !            42:        return(srch(drive, base, nblk, 1));
        !            43: }
        !            44: 
        !            45: s_wsearch(drive, base, nblk)
        !            46: {
        !            47:        return(srch(drive, base, nblk, 0));
        !            48: }

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