//******************************************************
//�p�P�b�g�̉��
//******************************************************
public bool Read(byte[] buffer)
{
unsafe {
int offSet = 0;
fixed(byte *p = buffer)
{
//�R�s�[��\���̂̃T�C�Y�m�F
int size = Marshal.SizeOf(typeof(HeaderDhcp));
//�R�s�[��̃T�C�Y���K�v�����݂��邩�ǂ����̊m�F
if (offSet + size > buffer.Length)
{
return(false);// ��M�o�C�g������
}
_headerDhcp = (HeaderDhcp)Marshal.PtrToStructure((IntPtr)(p + offSet), typeof(HeaderDhcp));
offSet += size;
if (_headerDhcp.MagicCookie == 0x63538263)
{
_optionLen = buffer.Length - offSet;
if (_optionLen > 0)
{
_option = new byte[_optionLen];
Marshal.Copy((IntPtr)(p + offSet), _option, 0, _optionLen);
}
}
}
return(true);
}
}
//******************************************************
//�p�P�b�g�̉��
//******************************************************
public bool Read(byte[] buffer)
{
unsafe {
int offSet = 0;
fixed (byte* p = buffer) {
//�R�s�[��\���̂̃T�C�Y�m�F
int size = Marshal.SizeOf(typeof(HeaderDhcp));
//�R�s�[��̃T�C�Y���K�v�����݂��邩�ǂ����̊m�F
if (offSet + size > buffer.Length) {
return false;// ��M�o�C�g������
}
_headerDhcp = (HeaderDhcp)Marshal.PtrToStructure((IntPtr)(p + offSet), typeof(HeaderDhcp));
offSet += size;
if (_headerDhcp.MagicCookie == 0x63538263) {
_optionLen = buffer.Length - offSet;
if (_optionLen > 0) {
_option = new byte[_optionLen];
Marshal.Copy((IntPtr)(p + offSet), _option, 0, _optionLen);
}
}
}
return true;
}
}
