20 lines
384 B
Ruby
20 lines
384 B
Ruby
# frozen_string_literal: true
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# turn byte array into hex string
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def str_hex(data)
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data.unpack1('H*').scan(/../).join(' ').upcase
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end
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# turn hex string to byte array
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def str_bytes(str)
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str.scan(/../).map { |b| b.to_i(16) }
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end
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def bytes_to_str(data)
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data.unpack('H*').join
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end
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def get_byte(data, start = 0, num = 1)
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data[start...(start + num)].unpack('H*').join.upcase
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end
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