Karsten Elfenbein : rsaenh: Fix the case when CPGetHashParam should return the size of the HASHVAL.

[Alexandre Julliard]

Module: wine
Branch: refs/heads/master
Commit: dd6598b834d6e9f113f3c58dd84e778ae5583d4b
URL:    http://source.winehq.org/git/?p=wine.git;a=commit;h=dd6598b834d6e9f113f3c58d...

Author: Karsten Elfenbein 
Date:   Tue Jul 25 20:59:12 2006 +0200

rsaenh: Fix the case when CPGetHashParam should return the size of the HASHVAL.

---

dlls/rsaenh/rsaenh.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/dlls/rsaenh/rsaenh.c b/dlls/rsaenh/rsaenh.c
index 7c9dcfb..d42face 100644
--- a/dlls/rsaenh/rsaenh.c
+++ b/dlls/rsaenh/rsaenh.c
@@ -2567,7 +2567,12 @@ BOOL WINAPI RSAENH_CPGetHashParam(HCRYPT
                 return tls1_prf(hProv, pCryptHash->hKey, &pCryptHash->tpPRFParams.blobLabel,
                                 &pCryptHash->tpPRFParams.blobSeed, pbData, *pdwDataLen);
             }
-            
+
+            if ( pbData == NULL ) {
+                *pdwDataLen = pCryptHash->dwHashSize;
+                return TRUE;
+            }
+
             if (pCryptHash->dwState == RSAENH_HASHSTATE_IDLE) {
                 SetLastError(NTE_BAD_HASH_STATE);
                 return FALSE;