On Sat, Nov 27, 2004 at 01:32:00PM -0500, Igor Pechtchanski wrote: >>In my case, I provide an option for a terminal program what device >>should be used to open the file. I don't want to restrict what devices >>are or are not allowed, except by using function calls to the Posix API >>to determine if the required functionality can be met. > >"\\.\COM37" is not POSIX. Cygwin is POSIX. You're trying to use POSIX >functions (isatty) on a non-POSIX device -- the result is unspecified >(which means that the above behavior is perfectly valid, as is any >other). If you want to write portable code, why not use the equivalent >POSIX devices? "/dev/ttyS36" should work, and so should "/dev/com37" >(according to the documentation).
And, in reality, isatty should (and does, AFAICT) return 0 for anything opened with \\.\COMn. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
