* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include

wsa_event.h instead.
	* fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h.
	(wsa_events): Move from DLL shared area to cygwin_shared shared
	memory.  Accommodate throughout.
	(socket_serial_number): Ditto.
	* fhandler_tape.cc (mt): Ditto.
	(mtinfo_init): Remove.
	(mt): Define as cygwin_shared->mt.
	* flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove.
	(FLOCK_INODE_DIR_ACCESS): Move up in file.
	(FLOCK_MUTANT_ACCESS): Ditto.
	(FLOCK_EVENT_ACCESS): Ditto.
	(get_lock_parent_dir): Remove.
	(inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle.
	Add a "flock-" prefix to file's lock directory name for clarity.
	* mtinfo.h (mtinfo_init): Drop declaration.
	* net.cc (last_used_bindresvport): Move from DLL shared area to
	cygwin_shared shared memory.
	(cygwin_bindresvport_sa): Accommodate above change.
	* sec_helper.cc (_everyone_sd): Move here from flock.cc.
	* security.h (SD_MIN_SIZE): Ditto.
	(everyone_sd): Ditto.
	* shared.cc (cygwin_shared_area): Remove.
	(cygwin_shared_h): New handle.
	(get_shared_parent_dir): New static function.
	(shared_name): Drop session_local argument.  Call get_shared_parent_dir
	here.  Add cygwin-shared subdir to object name.
	(offsets): Reinstantiate SH_CYGWIN_SHARED member.
	(open_shared): Revert change from 2007-03-29 for systems supporting
	SeCreateGlobalPrivilege.
	(shared_info::initialize): Call mtinfo's initialize here.
	(memory_init): Drop call to mtinfo_init.
	* shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info.
	(CURR_SHARED_MAGIC): Ditto.
	(class shared_info): Add members for global socket and tape info
	sharing.
	(enum shared_locations): Reinstantiate SH_CYGWIN_SHARED.
	(get_shared_parent_dir): Declare.
	(shared_name): Drop session_local argument from declaration.
	* wsa_event.h: New file.  Move definitions of NUM_SOCKS and
	struct wsa_event here.

winsup/cygwin/security.h

@@ -20,6 +20,7 @@ details. */
 #define MAX_SID_LEN 40
 #define MAX_DACL_LEN(n) (sizeof (ACL) \
 		   + (n) * (sizeof (ACCESS_ALLOWED_ACE) - sizeof (DWORD) + MAX_SID_LEN))
+#define SD_MIN_SIZE (sizeof (SECURITY_DESCRIPTOR) + MAX_DACL_LEN (1))
 #define ACL_DEFAULT_SIZE 3072
 #define NO_SID ((PSID)NULL)
 
@@ -421,6 +422,9 @@ extern SECURITY_ATTRIBUTES sec_none, sec_none_nih, sec_all, sec_all_nih;
 extern SECURITY_ATTRIBUTES *__stdcall __sec_user (PVOID sa_buf, PSID sid1, PSID sid2,
 						  DWORD access2, BOOL inherit)
   __attribute__ ((regparm (3)));
+extern PSECURITY_DESCRIPTOR _everyone_sd (void *buf, ACCESS_MASK access);
+#define everyone_sd(access)	(_everyone_sd (alloca (SD_MIN_SIZE), (access)))
+
 extern bool sec_acl (PACL acl, bool original, bool admins, PSID sid1 = NO_SID,
 		     PSID sid2 = NO_SID, DWORD access2 = 0);