The RPL is a copy of that used for the SEND. It should not be used for VTAM requests.
Use of MODCB, TESTCB, and SHOWCB will add several thousand instructions to the path length. Use the IFGRPL DSECT and address the RPL directly.
RPLAREA points to the data or a buffer list. RPLRLEN contains the data length or buffer list length. Bit RPLBUFFL in RPLOPT6 indicates a buffer list.
The ISTBLENT DSECT describes a buffer list entry. BLEAREA points to the data. BLERLEN contains the data length. Dividing RPLRLEN by 16 gives the number of buffer list entries.
