Function WriteLengthAndMagic

screencapture/common/parserutil.go:10–13

WriteLengthAndMagic just writes length and magic as uint32 4 byte values into the given array.

(bytes []byte, length int, magic uint32)

//WriteLengthAndMagic just writes length and magic as uint32 4 byte values into the given array.
func WriteLengthAndMagic(bytes []byte, length int, magic uint32) {
	binary.LittleEndian.PutUint32(bytes, uint32(length))
	binary.LittleEndian.PutUint32(bytes[4:], magic)
}

//ParseLengthAndMagic checks if if the given byte array is longer or equal the uint32 in the first 4 bytes, and if the magic value in the second 4 bytes equals the supplied magic
// and returns the length, a slice of the bytes without length and magic or an error.