1.2.5.3.4 Parameter(s)

I/O PCB
Pointer to the PCB that represents a destination.
AIB
Specifies the application interface block (AIB) that is used for the call. This parameter is an input and output parameter. The following fields must be initialized in the AIB:
AIBID Eye catcher.
This 8-byte field must contain DFSAIBbb.
AIBLEN AIB lengths.
This field must contain the actual length of the AIB that the application program obtained.
AIBRSNM1 Resource name.
This 8-byte, left-justified field must contain the PCB name IOPCBbbb.
AIBOALEN I/O area length.
This field must contain the length of the I/O area that is specified in the call list.
I/O Area
Pointer to a buffer to receive the first segment of the returned message.