33 lines
1.3 KiB
Plaintext
33 lines
1.3 KiB
Plaintext
tcpserver and tcpclient are easy-to-use command-line tools for
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building TCP client-server applications.
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tcpserver waits for incoming connections and, for each connection,
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runs a program of your choice. Your program receives environment
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variables showing the local and remote host names, IP addresses,
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and port numbers.
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tcpserver offers a concurrency limit to protect you from running
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out of processes and memory. When you are handling 40 (by default)
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simultaneous connections, tcpserver smoothly defers acceptance of
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new connections.
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tcpserver also provides TCP access control features, similar to
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tcp-wrappers/tcpd's hosts.allow but much faster. Its access control
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rules are compiled into a hashed format with cdb, so it can easily
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deal with thousands of different hosts.
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This package includes a recordio tool that monitors all the input
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and output of a server.
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tcpclient makes a TCP connection and runs a program of your choice.
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It sets up the same environment variables as tcpserver.
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This package includes several sample clients built on top of
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tcpclient: who@, date@, finger@, http@, tcpcat, and mconnect.
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tcpserver and tcpclient conform to UCSPI, the UNIX Client-Server
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Program Interface, using the TCP protocol. UCSPI tools are available
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for several different networks.
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WWW: ${HOMEPAGE}
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