Juan Lang : crypt32: Avoid misleading fixme when no data are passed to CryptUnprotectData.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 62f4022563b0b61868b0c928973d352c2a93a079
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=62f4022563b0b61868b0c928973d352c2a93a079

Author: Juan Lang <juan.lang at gmail.com>
Date:   Wed Oct 24 12:46:31 2007 -0700

crypt32: Avoid misleading fixme when no data are passed to CryptUnprotectData.

---

 dlls/crypt32/protectdata.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/dlls/crypt32/protectdata.c b/dlls/crypt32/protectdata.c
index a1a3369..3ecd35b 100644
--- a/dlls/crypt32/protectdata.c
+++ b/dlls/crypt32/protectdata.c
@@ -1015,6 +1015,11 @@ BOOL WINAPI CryptUnprotectData(DATA_BLOB* pDataIn,
         SetLastError(ERROR_INVALID_PARAMETER);
         goto finished;
     }
+    if (!pDataIn->cbData)
+    {
+        SetLastError(ERROR_INVALID_DATA);
+        goto finished;
+    }
 
     /* debug: show our arguments */
     report(pDataIn,pOptionalEntropy,pPromptStruct,dwFlags);