cstream is a general-purpose stream-handling tool like UNIX dd, usually used in command line-constructed pipes. Features include sane command line switch syntax, exact throughput limiting on the incoming side, precise throughput reporting, SIGUSR1 causes a throughput report before end-of-file, built-in support to write its PID to a file, built-in support for fifos, IPv6 support, and built-in data creation and sink.
