socket-descriptor

Specifies the name of a fullword field containing the socket descriptor for which the service is to be performed.

level

Specifies the name of a fullword field containing the level for the option. level can be specified as an absolute expression.

option-name

Specifies the name of a fullword field indicating the option to retrieve. option-name can be specified as an absolute expression.

option-value

Specifies the name of an area that will contain the requested data.

option-value-length

Specifies the name of a fullword field that contains the length of option-value. On return, option-value-length contains the size of the data returned in option-value.

The maximum value for this parameter is 4096.