06-23-2011
You haven't put an print statements in for recv() so we don't know how many bytes it received, if any.
Hmm... Perhaps you're off by one communication? As in, there's data sitting in the buffer that wasn't read last time? There's no guarantee you're going to get it all in one recv(), after all, you have to know how much is coming (or use a delimiter) to know when to stop.
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LEARN ABOUT DEBIAN
tcpconnect
TCPCONNECT(1) General Commands Manual TCPCONNECT(1)
NAME
tcpconnect - general TCP/IP client
SYNOPSIS
tcpconnect [-irv] [-l localaddr] host port
DESCRIPTION
tcpconnect creates a TCP/IP connection to a server running on the machine host, listening to port port. It then reads standard input and
sends to the remote server, and data received from the server is printed to standard output. When end-of-file is reached on both standard
input and the TCP/IP connection, tcpconnect terminates.
OPTIONS
-i Terminate at end-of-file on standard input; don't wait for the server to close the connection.
-r Terminate when the remote server closes the connection; don't wait for end-of-file on standard input.
-v Verbose mode. Prints a message to standard error when the connection has been established.
-l addr:port
Bind the local end-point of the connection to IP address addr, TCP port port. Either the IP address or the port, but not both, may
be left out, meaning that the operating system gets to choose that part by itself.
SEE ALSO
tcplisten(1), telnet(1), tcpbug(1).
BUGS
The names of the options are not yet finalized, and may change at a future release.
1997 April 13 TCPCONNECT(1)