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

14a12b88 · Juan Lang · Alexandre Julliard · 84eed025 · 14a12b88
Commit 14a12b88 authored Jan 08, 2008 by Juan Lang Committed by Alexandre Julliard Jan 15, 2008
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crypt.c dlls/wintrust/crypt.c +2 -2

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--- a/dlls/wintrust/crypt.c
+++ b/dlls/wintrust/crypt.c
@@ -218,10 +218,10 @@ BOOL WINAPI CryptSIPGetSignedDataMsg(SIP_SUBJECTINFO* pSubjectInfo, DWORD* pdwEn
    }
    else
    {
-        DWORD len;
+        DWORD len = 0;

        ret = ImageGetCertificateData(pSubjectInfo->hFile, dwIndex, NULL, &len);
-        if (!ret)
+        if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
            goto error;
        pCert = HeapAlloc(GetProcessHeap(), 0, len);
        if (!pCert)