internal static extern bool CryptMsgGetParam(
#endif
SafeCryptMsgHandle hCryptMsg,
CryptMsgParamType dwParamType,
int dwIndex,
IntPtr pvData,
ref int pcbData);
public static extern bool CryptMsgGetParam
(
[param: In] CryptMsgSafeHandle hCryptMsg,
[param: In, MarshalAs(UnmanagedType.U4)] CryptMsgParamType dwParamType,
[param: In, MarshalAs(UnmanagedType.U4)] uint dwIndex,
[param: In] LocalBufferSafeHandle pvData,
[param: In, Out, MarshalAs(UnmanagedType.U4)] ref uint pcbData
);
// Used for binary blobs with internal pointers.
public static SafeHandle GetMsgParamAsMemory(this SafeCryptMsgHandle hCryptMsg, CryptMsgParamType paramType, int index = 0)
{
int cbData = 0;
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, null, ref cbData))
throw Marshal.GetLastWin32Error().ToCryptographicException();
SafeHandle pvData = SafeHeapAllocHandle.Alloc(cbData);
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, pvData.DangerousGetHandle(), ref cbData))
throw Marshal.GetLastWin32Error().ToCryptographicException();
return pvData;
}
// Used for binary blobs without internal pointers.
public static byte[] GetMsgParamAsByteArray(this SafeCryptMsgHandle hCryptMsg, CryptMsgParamType paramType, int index = 0)
{
int cbData = 0;
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, null, ref cbData))
throw Marshal.GetLastWin32Error().ToCryptographicException();
byte[] pvData = new byte[cbData];
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, pvData, ref cbData))
throw Marshal.GetLastWin32Error().ToCryptographicException();
return pvData.Resize(cbData);
}
// Used for binary blobs with internal pointers.
public static SafeHandle GetMsgParamAsMemory(this SafeCryptMsgHandle hCryptMsg, CryptMsgParamType paramType, int index = 0)
{
int cbData = 0;
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, null, ref cbData))
{
throw Interop.CPError.GetLastWin32Error().ToCryptographicException();
}
SafeHandle pvData = SafeHeapAllocHandle.Alloc(cbData);
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, pvData.DangerousGetHandle(), ref cbData))
{
throw Interop.CPError.GetLastWin32Error().ToCryptographicException();
}
return(pvData);
}
// Used for binary blobs without internal pointers.
public static byte[] GetMsgParamAsByteArray(this SafeCryptMsgHandle hCryptMsg, CryptMsgParamType paramType, int index = 0)
{
int cbData = 0;
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, null, ref cbData))
{
throw Interop.CPError.GetLastWin32Error().ToCryptographicException();
}
byte[] pvData = new byte[cbData];
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, pvData, ref cbData))
{
throw Interop.CPError.GetLastWin32Error().ToCryptographicException();
}
return(pvData.Resize(cbData));
}
internal static extern bool CryptMsgGetParam(SafeCryptMsgHandle hCryptMsg, CryptMsgParamType dwParamType, int dwIndex, IntPtr pvData, [In, Out] ref int pcbData);
internal static extern bool CryptMsgGetParam(SafeCryptMsgHandle hCryptMsg, CryptMsgParamType dwParamType, int dwIndex, [Out] byte[] pvData, [In, Out] ref int pcbData);
// Used for binary blobs without internal pointers.
public static unsafe byte[] GetMsgParamAsByteArray(this SafeCryptMsgHandle hCryptMsg, CryptMsgParamType paramType, int index = 0)
{
int cbData = 0;
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, IntPtr.Zero, ref cbData))
{
throw Marshal.GetLastWin32Error().ToCryptographicException();
}
byte[] data = new byte[cbData];
fixed(byte *pvData = data)
{
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, pvData, ref cbData))
{
throw Marshal.GetLastWin32Error().ToCryptographicException();
}
}
return(data.Resize(cbData));
}
internal static partial bool CryptMsgGetParam(
SafeCryptMsgHandle hCryptMsg,
CryptMsgParamType dwParamType,
int dwIndex,
IntPtr pvData,
ref int pcbData);
internal static unsafe partial bool CryptMsgGetParam(
SafeCryptMsgHandle hCryptMsg,
CryptMsgParamType dwParamType,
int dwIndex,
byte *pvData,
ref int pcbData);
// Used for binary blobs with internal pointers.
public static SafeHandle GetMsgParamAsMemory(this SafeCryptMsgHandle hCryptMsg, CryptMsgParamType paramType, int index = 0)
{
int cbData = 0;
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, IntPtr.Zero, ref cbData))
{
throw Marshal.GetLastPInvokeError().ToCryptographicException();
}
SafeHandle pvData = SafeHeapAllocHandle.Alloc(cbData);
if (!Interop.Crypt32.CryptMsgGetParam(hCryptMsg, paramType, index, pvData.DangerousGetHandle(), ref cbData))
{
Exception e = Marshal.GetLastPInvokeError().ToCryptographicException();
pvData.Dispose();
throw e;
}
return(pvData);
}
