/// <summary>
/// Convert the byte array into local representation from network byte order representation
/// If the conditional compilation symbol _BIG_ENDIAN is defined, then it is assumed
/// that the target machine is big endian else its assumed that the target machine
/// is little endian
/// </summary>
/// <param name="data">A byte array</param>
/// <returns>byte array in local byte order</returns>
public static byte[] FromNetworkByteOrder(byte[] data)
{
if (data == null || data.Length < 2)
{
return(data);
}
if (AbstractByteUtils.IsTargetLittleEndian())
{
data = AbstractByteUtils.ReverseBytes(data);
}
return(data);
}
/// <summary>
/// Convert the unsigned integer 16-bit to a byte array
/// This conversion takes care of little/big endian-ness of the target machine
/// </summary>
/// <param name="data">The unsigned int 16-bit to convert to bytes</param>
/// <returns>byte[]</returns>
public static byte[] GetBytes(UInt16 data)
{
byte[] bs = new byte[2];
if (AbstractByteUtils.IsTargetLittleEndian())
{
AbstractByteUtils.UInt16_To_LE(data, bs);
}
else
{
AbstractByteUtils.UInt16_To_BE(data, bs);
}
return(bs);
}
/// <summary>
/// Convert the incoming byte array to UInt64 using little-endian convention
/// </summary>
/// <param name="data">The byte array to be converted to unsigned int 64-bit</param>
/// <param name="index">The index from where to pick up the data for conversion</param>
/// <returns>UInt64</returns>
public static UInt64 LE_To_UInt64(byte[] data, int index)
{
if (data == null)
{
throw new ArgumentNullException("Invalid argument(s) for conversion");
}
if (data.Length < index + 8)
{
throw new ArgumentException("Invalid argument(s) for conversion");
}
UInt32 lo = AbstractByteUtils.LE_To_UInt32(data);
UInt32 hi = AbstractByteUtils.LE_To_UInt32(data, index);
return((UInt64)(hi << 32) | lo);
}
/// <summary>
/// Convert the incoming byte array to UInt64 using big-endian convention
/// </summary>
/// <param name="data">The byte array to be converted to unsigned int 64-bit</param>
/// <returns>UInt64</returns>
public static UInt64 BE_To_UInt64(byte[] data)
{
if (data == null)
{
throw new ArgumentNullException("Invalid argument(s) for conversion");
}
if (data.Length < 8)
{
throw new ArgumentException("Invalid argument(s) for conversion");
}
UInt32 lo = AbstractByteUtils.BE_To_UInt32(data);
UInt32 hi = AbstractByteUtils.BE_To_UInt32(data, 4);
return((UInt64)(lo << 32) | hi);
}
/// <summary>
/// Convert the byte stream to UInt64 taking care of the endian-ness of the system.
/// Null byte stream is returned as zero. Byte stream less than 8 bytes is still
/// converted after appropriate padding with zeros based on endianness
/// </summary>
/// <param name="bs">The byte array to be converted to int 64-bit</param>
/// <returns>UInt64</returns>
public static UInt64 ToUInt64(byte[] bs)
{
if (bs == null)
{
return(0);
}
byte[] temp = new byte[8];
if (AbstractByteUtils.IsTargetLittleEndian())
{
Array.Copy(bs, temp, bs.Length);
return(AbstractByteUtils.LE_To_UInt64(temp, 0));
}
else
{
Array.Copy(bs, 0, temp, 8 - bs.Length, bs.Length);
return(AbstractByteUtils.BE_To_UInt64(bs, 0));
}
}
/// <summary>
/// Convert the long to a byte array (64-bit signed)
/// This conversion takes care of little/big endian-ness of the target machine
/// </summary>
/// <param name="data">The long to convert to bytes</param>
/// <returns>byte[]</returns>
public static byte[] GetBytes(UInt64 data)
{
//We only need four bytes for this conversion
byte[] asBytes = new byte[8];
asBytes[0] = (byte)(data & 0xFF);
asBytes[1] = (byte)((data >> 8) & 0xFF);
asBytes[2] = (byte)((data >> 16) & 0xFF);
asBytes[3] = (byte)((data >> 24) & 0xFF);
asBytes[4] = (byte)((data >> 32) & 0xFF);
asBytes[5] = (byte)((data >> 40) & 0xFF);
asBytes[6] = (byte)((data >> 48) & 0xFF);
asBytes[7] = (byte)((data >> 56) & 0xFF);
if (!AbstractByteUtils.IsTargetLittleEndian())
{
asBytes = AbstractByteUtils.ReverseBytes(asBytes);
}
return(asBytes);
}
