tcp-environ - TCP-related environment variables


DESCRIPTION

       The following environment variables describe a TCP connec-
       tion.   They  are  set  up  by  tcp-env,  tcpclient,   and
       tcpserver.   Note  that  TCPLOCALHOST,  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 cur-
            rently  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 cur-
            rently  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 supply connection informa-
            tion, 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)