posix_openpt
Elliott Hughes
EHughes@bluearc.com
Wed Feb 22 02:32:00 GMT 2006
Cygwin doesn't seem to have POSIX's unfortunately-named "posix_openpt" function in its stdlib.h. The function's documented here:
http://www.opengroup.org/onlinepubs/000095399/functions/posix_openpt.html
I'm currently successfully using the implementation below in my application, but wondered if there was any interest in adding it to Cygwin itself?
#ifdef __CYGWIN__
// Cygwin doesn't currently have posix_openpt(3).
int posix_openpt(int oflag) {
return open("/dev/ptmx", oflag);
}
#endif
(Given the simplicity of the implementation, you might be wondering why anyone would care about this trivial little function, other than a standards pedant? The answer is that although that implementation suffices on Cygwin and Linux, OSes such as Darwin require a complicated trawl through /dev looking for suitable candidates.)
--
Elliott Hughes, BlueArc Engineering
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