ultrix man page for tcp-environ

tcp-environ(5)                                                  File Formats Manual                                                 tcp-environ(5)

NAME
       tcp-environ - TCP-related environment variables

DESCRIPTION
       The  following environment variables describe a TCP connection.  They are set up by tcp-env, tcpclient, and tcpserver.  Note that TCPLOCAL-
       HOST, TCPREMOTEHOST, and TCPREMOTEINFO can contain arbitrary characters.

       PROTO
            The string TCP.

       TCPLOCALHOST
            The domain name of the local host, with uppercase letters converted to lowercase.  If there is no currently available domain name  for
            the local IP address, TCPLOCALHOST is not set.

       TCPLOCALIP
            The IP address of the local host, in dotted-decimal form.

       TCPLOCALPORT
            The local TCP port number, in decimal.

       TCPREMOTEHOST
            The domain name of the remote host, with uppercase letters converted to lowercase.  If there is no currently available domain name for
            the remote IP address, TCPREMOTEHOST is not set.

       TCPREMOTEINFO
            A connection-specific string, perhaps a username, supplied by the remote host via 931/1413/IDENT/TAP.  If the remote host did not sup-
            ply connection information, TCPREMOTEINFO is not set.

       TCPREMOTEIP
            The IP address of the remote host.

       TCPREMOTEPORT
            The remote TCP port number.

SEE ALSO
       tcpclient(1), tcpserver(1), tcp-env(1), tcp(4)

                                                                                                                                    tcp-environ(5)