Notes

z/VSE systems-The IOCTL function is not supported.
The following table lists the commands that can be specified. The EQUate symbol is generated by #SOCKET macro and the field names are associated with the SOCKET-MISC-DEFINITIONS-2 record.

EQUate Symbol	Field Name	Description
IO@NREAD	SOCKET-IOCTL-FIONREAD	Sets or resets socket in non-blocking mode
IO@NBIO	SOCKET-IOCTL-FIONBIO	Retrieves the number of readable bytes available
IO@CTTLS	SOCKET-IOCTL-SIOCTTLSCTL	Allows an application to query or control AT-TLS

PL/I programs: The SOCKET_MISC_DEFINITIONS_2 is used and the dashes are replaced by underscores.

More Information:

For more information about socket functions, see the CA IDMS Callable Services Guide.