Hans Leidekker : secur32: Don' t allocate a context handle in AcceptSecurityContext if new and passed in context are the same.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 4467fd6d232cd715cd63b1ebf74c6013e19563b1
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=4467fd6d232cd715cd63b1ebf74c6013e19563b1

Author: Hans Leidekker <hans at codeweavers.com>
Date:   Mon Oct 16 10:08:49 2017 +0200

secur32: Don't allocate a context handle in AcceptSecurityContext if new and passed in context are the same.

Signed-off-by: Hans Leidekker <hans at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/secur32/wrapper.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/secur32/wrapper.c b/dlls/secur32/wrapper.c
index 06a3674..dba6754 100644
--- a/dlls/secur32/wrapper.c
+++ b/dlls/secur32/wrapper.c
@@ -399,7 +399,8 @@ SECURITY_STATUS WINAPI AcceptSecurityContext(
                 ret = package->provider->fnTableW.AcceptSecurityContext(
                  cred, phContext ? &myCtxt : NULL, pInput, fContextReq,
                  TargetDataRep, &myCtxt, pOutput, pfContextAttr, ptsExpiry);
-                if (ret == SEC_E_OK || ret == SEC_I_CONTINUE_NEEDED)
+                if ((ret == SEC_E_OK || ret == SEC_I_CONTINUE_NEEDED) &&
+                    phNewContext && phNewContext != phContext)
                 {
                     SECURITY_STATUS ret2;
                     ret2 = SECUR32_makeSecHandle(phNewContext, package, &myCtxt);