* Makefile.in (DLL_OFILES): Add tls_pbuf.o.

	* autoload.cc (CreateDesktopW): Replace CreateDesktopA.
	(CreateWindowStationW): Replace CreateWindowStationA.
	(GetUserObjectInformationW): Replace GetUserObjectInformationA.
	* cygheap.h (cwdstuff::get): Assume default buffer size NT_MAX_PATH.
	* cygtls.cc (_cygtls::remove): Free temporary TLS path buffers.
	* cygtls.h (TP_NUM_C_BUFS): Define.
	(TP_NUM_W_BUFS): Define.
	(class tls_pathbuf): New class to store pointers to thread local
	temporary path buffers.
	(_local_storage::pathbufs): New member.
	* environ.cc (win_env::add_cache): Use temporary TLS path buffer instead
	of stack based buffer.
	(posify): Get temporary outenv buffer from calling function.
	(environ_init): Create temporary TLS path buffer for posify.
	(build_env): Create Windows environment block as WCHAR buffer.
	* environ.h (build_env): Change declaration accordingly.
	* external.cc (sync_winenv): Accommodate build_env change.
	* fhandler_console.cc (fhandler_console::need_invisible): Use
	GetUserObjectInformationW and CreateWindowStationW.
	* fhandler_process.cc (format_process_maps): Use temporary TLS path
	buffer instead of stack based buffer.
	* fork.cc (frok::parent): Convert to use CreateProcessW.
	* path.cc: Throughout use temporary TLS path buffers instead of stack
	based buffer.  Replace checks for CYG_MAX_PATH by checks for
	NT_MAX_PATH.
	(getfileattr): New function to replace GetFileAttributesA.
	(normalize_win32_path): Remove Win32 and NT long path prefixes.
	(getwd): Assume PATH_MAX + 1 buffer per SUSv3.
	* path.h (class path_conv): Set path buffer to size NT_MAX_PATH.
	(iswdrive): Define.
	* pinfo.cc (commune_process): Use temporary TLS path buffer instead of
	stack based buffer.
	* registry.cc (get_registry_hive_path): Ditto.
	(load_registry_hive): Ditto.
	* spawn.cc (spawn_guts): Convert to use CreateProcessW and
	CreateProcessAsUserW.
	(av::fixup): Open/close file using NtOpenFile/NtClose.
	* syscalls.cc (mknod_worker): Allow PATH_MAX file name.
	(mknod32): Ditto.
	(getusershell): Ditto.
	* tls_pbuf.cc: New file implementing tls_pathbuf and tmp_pathbuf
	methods.
	* tls_pbuf.h: New header for files using tmp_pathbuf.
	* tlsoffsets.h: Regenerate.
	* winsup.h (NT_MAX_PATH): Define as 32767 to avoid USHORT overflow.

1 files changed, 6 insertions, 3 deletions

diff --git a/winsup/cygwin/registry.cc b/winsup/cygwin/registry.cc
index 8316551a5..ce0987502 100644
--- a/winsup/cygwin/registry.cc
+++ b/winsup/cygwin/registry.cc
@@ -19,6 +19,7 @@ details. */
 #include "fhandler.h"
 #include "dtable.h"
 #include "cygheap.h"
+#include "tls_pbuf.h"
 #include <wchar.h>
 static const char cygnus_class[] = "cygnus";
 
@@ -220,12 +221,13 @@ get_registry_hive_path (const PWCHAR name, PWCHAR path)
   wcpcpy (kend, name);
   if (!RegOpenKeyExW (HKEY_LOCAL_MACHINE, key, 0, KEY_READ, &hkey))
     {
-      WCHAR buf[NT_MAX_PATH];
+      tmp_pathbuf tp;
+      PWCHAR buf = tp.w_get ();
       DWORD type, siz;
 
       path[0] = L'\0';
       if (!RegQueryValueExW (hkey, L"ProfileImagePath", 0, &type,
-			     (BYTE *)buf, (siz = sizeof (buf), &siz)))
+			     (BYTE *)buf, (siz = NT_MAX_PATH, &siz)))
 	ExpandEnvironmentStringsW (buf, path, NT_MAX_PATH);
       RegCloseKey (hkey);
       if (path[0])
@@ -238,7 +240,8 @@ get_registry_hive_path (const PWCHAR name, PWCHAR path)
 void
 load_registry_hive (const PWCHAR name)
 {
-  WCHAR path[NT_MAX_PATH];
+  tmp_pathbuf tp;
+  PWCHAR path = tp.w_get ();
   HKEY hkey;
   LONG ret;