[Mingw-users] [mingw - Windows API] RE: WSAStartup hangs?

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By: dessent

That is normal if you are running the program from a Cygwin pty.  When you use
xterm or rxvt (or the windoes command prompt with "tty" in your $CYGWIN variable),
Cygwin must emulate a unix pseudoterminal.  This does not exist in Windows natively.
Non-cygwin applications don't know what a pty is, and think they're writing
to a pipe, which is buffered by default.

Run it from the Windows Command Prompt outside of Cygwin and it should work.
Or run it from cmd.exe in Cygwin without CYGWIN=tty.  Or call fflush(stdout)
after output.  Or disable buffering with setbuf(stdout, NULL).

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