[PATCH] cmd: Add basic handling of Ctrl-C

[Stefan Dösinger]

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Am 2015-03-26 um 13:46 schrieb Hugh McMaster:
> The PHANDLER_ROUTINE is a pointer to the function handler. MSDN's 
> own example [1] on installing a Ctrl handler uses a cast.
> 
> Otherwise, what would you suggest?
If the function signature (including calling convention) matches the
one SetConsoleCtrlHandler expects the compiler should accept it
without a cast and without a warning.

In your patch you should probably use WINAPI for console_ctrl_handler.

That the MSDN example uses a cast is just terrible. If you get e.g.
the calling convention wrong you're begging for random crashes or
incorrectly passed parameters that are difficult to debug.
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