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Annotation of researchv10dc/cmd/oworm/scsi/readid.c, revision 1.1

1.1     ! root        1: #include       "scsi.h"
        !             2: 
        !             3: static
        !             4: myread(drive, block, o)
        !             5:        long block;
        !             6:        struct scsi_o *o;
        !             7: {
        !             8:        struct scsi_i input;
        !             9: 
        !            10:        input.bus_id = scsi_id;
        !            11:        input.cmd[0] = 0x28;
        !            12:        input.cmd[1] = drive<<5;
        !            13:        input.cmd[2] = block>>24;
        !            14:        input.cmd[3] = block>>16;
        !            15:        input.cmd[4] = block>>8;
        !            16:        input.cmd[5] = block;
        !            17:        input.cmd[6] = 0;
        !            18:        input.cmd[7] = 0;
        !            19:        input.cmd[8] = 1;
        !            20:        input.cmd[9] = 0;
        !            21:        if(scsiio(&input, 0, o, 1024, "readid") < 0)
        !            22:                return(1);
        !            23:        if(CHECK(*o))
        !            24:                return(1);
        !            25:        return(0);
        !            26: }
        !            27: 
        !            28: /*
        !            29:        return label, UNLABELLED or "" (error)
        !            30: */
        !            31: 
        !            32: s_readid(drive, buf)
        !            33:        char *buf;
        !            34: {
        !            35:        struct scsi_i input;
        !            36:        struct scsi_o output;
        !            37:        long b, lastb;
        !            38: 
        !            39:        buf[0] = 0;
        !            40:        scsi_shush = 1;
        !            41:        if(myread(drive, 0L, &output) == 0)
        !            42:                goto done;
        !            43:        for(b = 1, lastb = -1;;){
        !            44:                if(myread(drive, b, &output))
        !            45:                        break;
        !            46:                lastb = b;
        !            47:                b = ((long *)output.data)[9];
        !            48:        }
        !            49:        scsi_shush = 0;
        !            50:        if(lastb < 0){
        !            51:                s_sense(drive, 1);
        !            52:                strcpy(buf, UNLABELLED);
        !            53:                return;
        !            54:        }
        !            55:        myread(drive, lastb, &output);
        !            56: done:
        !            57:        strncpy(buf, (char *)&output.data[42], 128);
        !            58:        buf[127] = 0;
        !            59: }

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