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Changes for version 2.19 - 2017-05-11

  • commit aac1b06c1e3b0d73ca964794bab0c444d454ebcc Author: Yasuhiro Matsumoto <> Date: Thu May 11 18:40:13 2017 +0900
    • don't run command when the port is empty
    • Test::TCP do hack on Windows for checking port used.
    • But this way always return 0 with succeeded with empty port. This is not expected behavior. So this change fix to call check_port if the port is not defined.
    • fixes #60


find a free TCP/UDP port
testing TCP program
check if a port is open from command line