Parameter values set by the application

SOC-FUNCTION

A 16-byte character field containing RECVFROM. The field is left-justified and padded to the right with blanks.

S

A halfword binary number set to the socket descriptor of the socket to receive the data.

FLAGS

A fullword binary field containing flag values as follows:

Literal Value	Binary Value	Description
NO-FLAG	X'00000000'	Read data.
MSG-OOB	X'00000001'	Receive out-of-band data (stream sockets only). Even if the OOB flag is not set, out-of-band data can be read if the SO-OOBINLINE option is set for the socket.
MSG-PEEK	X'00000002'	Peek at the data, but do not destroy data. If the peek flag is set, the next receive operation reads the same data.
MSG-WAITALL	X'00000040'	Requests that the function block until the requested amount of data can be returned (stream sockets only). The function might return a smaller amount of data if the connection is closed, if an error is pending, or if the SO_RCVTIMEO field is set and the timer has expired for the socket.

NBYTE

A fullword binary number specifying the length of the input buffer.