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

	* cygserver.h (CYGWIN_SERVER_VERSION_API): Bump.
	(request_code_t): Define CYGSERVER_REQUEST_SETPWD request type.
	* cygserver_msg.h (client_request_msg::retval): Use default value of -1
	for retval if msglen is 0.
	* cygserver_sem.h (client_request_sem::retval): Ditto.
	* cygserver_shm.h (client_request_shm::retval): Ditto.
	* cygserver_setpwd.h: New file.
	* external.cc (cygwin_internal): Implement new CW_SET_PRIV_KEY type.
	* sec_auth.cc (open_local_policy): Make externally available.
	Get ACCESS_MASK as argument.
	(create_token): Accommodate change to open_local_policy.
	(lsaauth): Ditto.
	(lsaprivkeyauth): New function fetching token by retrieving
	password stored in Cygwin or Interix LSA private data area and
	calling LogonUser with it.
	* security.h (lsaprivkeyauth): Declare.
	(open_local_policy): Declare.
	* setlsapwd.cc: New file implementing setting LSA private data password
	using LsaStorePrivateData or by calling cygserver if available.
	* syscalls.cc (seteuid32): Add workaround to get the original token
	when switching back to the original privileged user, even if
	setgroups group list is still active.  Add long comment to explain why.
	Call lsaprivkeyauth first, only if that fails call lsaauth or
	create_token.
	* include/cygwin/version.h: Bump API minor number.
	* include/sys/cygwin.h (cygwin_getinfo_types): Add CW_SET_PRIV_KEY.

1 files changed, 2 insertions, 2 deletions

diff --git a/winsup/cygwin/cygserver_shm.h b/winsup/cygwin/cygserver_shm.h
index 2948f6725..baa3e052a 100644
--- a/winsup/cygwin/cygserver_shm.h
+++ b/winsup/cygwin/cygserver_shm.h
@@ -1,6 +1,6 @@
 /* cygserver_shm.h: Single unix specification IPC interface for Cygwin.
 
-   Copyright 2003 Red Hat, Inc.
+   Copyright 2003, 2008 Red Hat, Inc.
 
 This file is part of Cygwin.
 
@@ -78,7 +78,7 @@ public:
   client_request_shm (proc *);				// shmfork
 #endif
 
-  int retval () const { return _parameters.out.ret; }
+  int retval () const { return msglen () ? _parameters.out.ret : -1; }
   void *ptrval () const { return (void *)_parameters.out.ptr; }
   vm_object_t objval () const { return _parameters.out.obj; }
 };