crypt32: Don't expect ImageGetCertificateData to succeed when Certificate is NULL.

e5e551df · Juan Lang · Alexandre Julliard · e459ac84 · e5e551df
Commit e5e551df authored Jul 11, 2008 by Juan Lang Committed by Alexandre Julliard Jul 14, 2008
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object.c dlls/crypt32/object.c +2 -2

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--- a/dlls/crypt32/object.c
+++ b/dlls/crypt32/object.c
@@ -413,10 +413,10 @@ static BOOL CRYPT_QueryEmbeddedMessageObject(DWORD dwObjectType,
     NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if (file != INVALID_HANDLE_VALUE)
    {
-        DWORD len;
+        DWORD len = 0;

        ret = ImageGetCertificateData(file, 0, NULL, &len);
-        if (ret)
+        if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
        {
            WIN_CERTIFICATE *winCert = HeapAlloc(GetProcessHeap(), 0, len);