/// <summary>
/// Returns raw data from the specified provider table.
/// </summary>
/// <param name="provider">Table provider</param>
/// <param name="table">Table name</param>
/// <returns>
/// Raw data for specified table.
/// </returns>
private static byte[] GetTable(FirmwareProvider provider, int table)
{
int size;
try
{
size = NativeMethods.GetSystemFirmwareTable((uint)provider, table, IntPtr.Zero, 0);
}
catch (DllNotFoundException)
{
return(null);
}
catch (EntryPointNotFoundException)
{
return(null);
}
if (size <= 0)
{
return(null);
}
IntPtr nativeBuffer = Marshal.AllocHGlobal(size);
NativeMethods.GetSystemFirmwareTable((uint)provider, table, nativeBuffer, size);
return(Marshal.GetLastWin32Error() != 0
? null
: nativeBuffer.ToByteArray(0, size));
}
/// <summary>
/// Returns an array that contains the tables associated with the specified provider.
/// </summary>
/// <param name="provider">Table provider</param>
/// <returns>
/// Tables associated with the specified provider
/// </returns>
public static string[] EnumerateTables(FirmwareProvider provider)
{
int size;
try
{
size = NativeMethods.EnumSystemFirmwareTables((uint)provider, IntPtr.Zero, 0);
}
catch (DllNotFoundException)
{
return(null);
}
catch (EntryPointNotFoundException)
{
return(null);
}
IntPtr nativeBuffer = Marshal.AllocHGlobal(size);
NativeMethods.EnumSystemFirmwareTables((uint)provider, nativeBuffer, size);
byte[] buffer = nativeBuffer.ToByteArray(0, size);
string[] result = new string[size / 4];
for (int i = 0; i < result.Length; i++)
{
result[i] = Encoding.ASCII.GetString(buffer, 4 * i, 4);
}
return(result);
}
/// <summary>
/// Returns raw data from the specified provider table.
/// </summary>
/// <param name="provider">Table provider</param>
/// <param name="table">Table name</param>
/// <returns>
/// Raw data for specified table.
/// </returns>
public static byte[] GetTable(FirmwareProvider provider, string table)
{
int id = table[3] << 24 | table[2] << 16 | table[1] << 8 | table[0];
return(GetTable(provider, id));
}