Provided by: qmail_1.06-6_amd64 bug

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 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 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  supply  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)