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Patch to pass file descriptors


Hello,
	I finally am able to send in the patch to pass file descriptors.
There's still some work to be done like adding security and such, but
otherwise it works.
There are two new files cygserver_handle.cc and cygserver_handle.h  these
go into src/winsup/cygwin

The testfd.c is a test file.  Compile and run to see a process fork and
pass a file descriptor.  It also shows how to use sendmsg to pass a
descriptor.

Feel free to comment.

Thanks,
David

Attachment: ChangeLog
Description: Text document

Attachment: cygserver_handle.h
Description: Text document

Attachment: cygserver_handle.cc
Description: Text document

Attachment: fdpass.patch
Description: Text document

Attachment: testfd.c
Description: Text document


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