Juan Lang : crypt32: More parameter checking for opening signed encoded messages.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 0b0df876b2f306d298ca6bc93877cbb3dcd69072
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=0b0df876b2f306d298ca6bc93877cbb3dcd69072

Author: Juan Lang <juan.lang at gmail.com>
Date:   Mon Jul 23 17:35:17 2007 -0700

crypt32: More parameter checking for opening signed encoded messages.

---

 dlls/crypt32/msg.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/dlls/crypt32/msg.c b/dlls/crypt32/msg.c
index c134e68..ce2ac3d 100644
--- a/dlls/crypt32/msg.c
+++ b/dlls/crypt32/msg.c
@@ -567,6 +567,17 @@ typedef struct _CMSG_SIGNED_ENCODE_INFO_WITH_CMS
 
 static BOOL CRYPT_IsValidSigner(CMSG_SIGNER_ENCODE_INFO_WITH_CMS *signer)
 {
+    if (signer->cbSize != sizeof(CMSG_SIGNER_ENCODE_INFO) &&
+     signer->cbSize != sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS))
+    {
+        SetLastError(E_INVALIDARG);
+        return FALSE;
+    }
+    if (signer->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS))
+    {
+        FIXME("CMSG_SIGNER_ENCODE_INFO with CMS fields unsupported\n");
+        return FALSE;
+    }
     if (!signer->pCertInfo->SerialNumber.cbData)
     {
         SetLastError(E_INVALIDARG);