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)
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