addrToBytes static method
Convert address buffer to bytes in little-endian format.
This function reads bytes from the ByteBuffer and manually reorders them
to produce a little-endian byte array, assuming the ByteBuffer's get_()
method reads bytes in the order they were put (likely big-endian if putInt
was used with BIG_ENDIAN order, or just sequential).
@param addr The ByteBuffer containing the address data. @returns A ByteArray (Uint8List) representing the address in little-endian format.
Implementation
static ByteArray addrToBytes(ByteBuffer addr) {
addr.position(0); // Reset position to the beginning of the buffer
final littleEndians = Uint8List(
addr.capacity()); // Create a new Uint8List of the same capacity
// Loop through the buffer, reading 4 bytes at a time and reordering them
// from big-endian (as read by get_()) to little-endian in the output array.
for (int i = 0; i < littleEndians.length; i += 4) {
final int b0 =
addr.get_(); // Read byte 0 (most significant if big-endian)
final int b1 = addr.get_(); // Read byte 1
final int b2 = addr.get_(); // Read byte 2
final int b3 =
addr.get_(); // Read byte 3 (least significant if big-endian)
// Place them in little-endian order in the output array
littleEndians[i] = b3;
littleEndians[i + 1] = b2;
littleEndians[i + 2] = b1;
littleEndians[i + 3] = b0;
}
return littleEndians;
}