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Top Forums Programming Problem and question with TCP Post 302934055 by Corona688 on Wednesday 4th of February 2015 10:51:20 AM
Old 02-04-2015
TCP doesn't truncate, it fragments. Messages will arrive in multiple pieces. The sending and receiving programs don't have control of how many or what size.

If you require packets to arrive in specific sizes, use UDP. Packets larger than the MTU simply won't work at all.
 

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TCPCONNECT(1)						      General Commands Manual						     TCPCONNECT(1)

NAME
tcplisten - general TCP/IP server SYNOPSIS
tcplisten [-irv] [localaddr] port DESCRIPTION
tcplisten waits for a TCP/IP connection on port. If a localaddr parameter is given, tcplisten will bind to that IP address. Otherwise tcplisten will accept connections to any of the local machines IP addresses. Data received from the client is printed on standard output, and data read from standard input is sent to the client. When end-of-file is reached on both standard input and the TCP/IP connection, tcplisten terminates. OPTIONS
-i Terminate at end-of-file on standard input; don't wait for the client to close the connection. -r Terminate when the remote client closes the connection; don't wait for end-of-file on standard input. -v Verbose mode. Prints a message to standard error about the origins (host and port) of the client. SEE ALSO
tcpconnect(1), telnet(1), mini-inetd(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)
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