* dtable.cc (dtable::build_fhandler_from_name): Set some fhandler

data on sockets to evaluate AF_LOCAL sockets correctly.
	(dtable::build_fhandler): Set unit number on sockets.
	* fhandler.h (fhandler_socket): Add unit number.
	(fhandler_socket::get_unit): New method.
	* fhandler_socket.cc (fhandler_socket::fhandler_socket): Set unit
	number.
	(fhandler_socket::fstat): Reorganize to return more Linux-like
	values.
	* net.cc: include ctype.h.
	(fdsock): Set unit number when building fhandler.
	* path.cc (path_conv::check): Set device type to FH_SOCKET if file
	is a AF_UNIX socket.
	(get_devn): Evaluate unit for virtual socket devices.
	(win32_device_name): Set windows path for sockets to unix_path with
	just backslashes to keep the different names.
	* syscalls.cc (fstat64): Don't override st_ino, st_dev and st_rdev
	for sockets.
	(stat_worker): Ditto.

From Pierre Humblet:

	* autoload.cc (AccessCheck): Add.
	(DuplicateToken): Add.
	* security.h (check_file_access): Declare.
	* syscalls.cc (access): Convert path to Windows, check existence
	and readonly attribute. Call check_file_access instead of acl_access.
	* security.cc (check_file_access): Create.
	* sec_acl (acl_access): Delete.

winsup/cygwin/net.cc

@@ -14,6 +14,7 @@ details. */
 
 #include "winsup.h"
 #include <errno.h>
+#include <ctype.h>
 #include <sys/socket.h>
 #include <sys/un.h>
 #include <iphlpapi.h>
@@ -521,8 +522,9 @@ fdsock (int &fd, const char *name, SOCKET soc)
   else
     debug_printf ("not setting socket inheritance since winsock2_active %d",
 		  winsock2_active);
-  fhandler_socket *fh =
-    (fhandler_socket *) cygheap->fdtab.build_fhandler (fd, FH_SOCKET, name);
+  fhandler_socket *fh = (fhandler_socket *)
+  	cygheap->fdtab.build_fhandler (fd, FH_SOCKET, name, NULL,
+				       tolower (name[5]) - 'a');
   if (!fh)
     return NULL;
   fh->set_io_handle ((HANDLE) soc);