internal static NativeMethods.WINTRUST_DATA InitWintrustDataStructFromBlob(
NativeMethods.WINTRUST_BLOB_INFO wbi)
{
NativeMethods.WINTRUST_DATA wintrustData = new NativeMethods.WINTRUST_DATA();
wintrustData.cbStruct = (uint)Marshal.SizeOf((object)wbi);
wintrustData.pPolicyCallbackData = IntPtr.Zero;
wintrustData.pSIPClientData = IntPtr.Zero;
wintrustData.dwUIChoice = 2U;
wintrustData.fdwRevocationChecks = 0U;
wintrustData.dwUnionChoice = 3U;
IntPtr ptr = Marshal.AllocCoTaskMem(Marshal.SizeOf((object)wbi));
Marshal.StructureToPtr((object)wbi, ptr, false);
wintrustData.Choice.pBlob = ptr;
wintrustData.dwStateAction = 1U;
wintrustData.hWVTStateData = IntPtr.Zero;
wintrustData.pwszURLReference = (string)null;
wintrustData.dwProvFlags = 0U;
return(wintrustData);
}
internal static uint DestroyWintrustDataStruct(NativeMethods.WINTRUST_DATA wtd)
{
uint num1 = 2147500037;
IntPtr num2 = IntPtr.Zero;
IntPtr num3 = IntPtr.Zero;
Guid guid = new Guid("00AAC56B-CD44-11d0-8CC2-00C04FC295EE");
try
{
num2 = Marshal.AllocCoTaskMem(Marshal.SizeOf((object)guid));
Marshal.StructureToPtr((object)guid, num2, false);
wtd.dwStateAction = 2U;
num3 = Marshal.AllocCoTaskMem(Marshal.SizeOf((object)wtd));
Marshal.StructureToPtr((object)wtd, num3, false);
num1 = NativeMethods.WinVerifyTrust(IntPtr.Zero, num2, num3);
wtd = (NativeMethods.WINTRUST_DATA)Marshal.PtrToStructure(num3, typeof(NativeMethods.WINTRUST_DATA));
}
finally
{
Marshal.DestroyStructure(num3, typeof(NativeMethods.WINTRUST_DATA));
Marshal.FreeCoTaskMem(num3);
Marshal.DestroyStructure(num2, typeof(Guid));
Marshal.FreeCoTaskMem(num2);
}
if (wtd.dwUnionChoice == 3U)
{
Marshal.FreeCoTaskMem(((NativeMethods.WINTRUST_BLOB_INFO)Marshal.PtrToStructure(wtd.Choice.pBlob, typeof(NativeMethods.WINTRUST_BLOB_INFO))).pbMemObject);
Marshal.DestroyStructure(wtd.Choice.pBlob, typeof(NativeMethods.WINTRUST_BLOB_INFO));
Marshal.FreeCoTaskMem(wtd.Choice.pBlob);
}
else
{
Marshal.DestroyStructure(wtd.Choice.pFile, typeof(NativeMethods.WINTRUST_FILE_INFO));
Marshal.FreeCoTaskMem(wtd.Choice.pFile);
}
return(num1);
}