'use strict';

module.exports = buffer => {
	if (!buffer || buffer.length < 8) {
		return false;
	}

	return (
		buffer[0] === 0x89 &&
		buffer[1] === 0x50 &&
		buffer[2] === 0x4E &&
		buffer[3] === 0x47 &&
		buffer[4] === 0x0D &&
		buffer[5] === 0x0A &&
		buffer[6] === 0x1A &&
		buffer[7] === 0x0A
	);
};