is used for return to sender function calls, and is generally
the hostname and port in the form *name*. The source might be
an IP address port combination; the data is populated by the
sending process and the only requirement is that it be
capable of being used to start a TCP session with the sender.
is used for return to sender function calls, and is generally
the hostname and port in the form *name*. The source might be
an IP address port combination; the data is populated by the
sending process and the only requirement is that it be
capable of being used to start a TCP session with the sender.