X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fsockets.h;h=93ae5d28004aaea3732f4b9bd55a1ece575a4268;hb=1bb384c44db25aef8f8b455cef22af32d8401abc;hp=33348db72d49a716b9cc5121d2e7335df326a9a6;hpb=a2d0b11f12ac48a198ac068a981be555191fe208;p=gnulib.git

diff --git a/lib/sockets.h b/lib/sockets.h
index 33348db72..93ae5d280 100644
--- a/lib/sockets.h
+++ b/lib/sockets.h
@@ -1,6 +1,6 @@
 /* sockets.h - wrappers for Windows socket functions
 
-   Copyright (C) 2008 Free Software Foundation, Inc.
+   Copyright (C) 2008-2011 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -29,4 +29,23 @@
 int gl_sockets_startup (int version);
 int gl_sockets_cleanup (void);
 
-#endif
+/* This function is useful it you create a socket using gnulib's
+   Winsock wrappers but needs to pass on the socket handle to some
+   other library that only accepts sockets. */
+#if WINDOWS_SOCKETS
+
+#include <sys/socket.h>
+
+static inline SOCKET
+gl_fd_to_handle (int fd)
+{
+  return _get_osfhandle (fd);
+}
+
+#else
+
+#define gl_fd_to_handle(x) (x)
+
+#endif /* WINDOWS_SOCKETS */
+
+#endif /* SOCKETS_H */