24 lines
463 B
Ruby
24 lines
463 B
Ruby
if ARGV.length < 1 then
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puts 'No parameter given'
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exit 255
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end
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File.open(ARGV[0], 'r') do |f|
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raw_size = f.size
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puts "Credential file size: #{raw_size}"
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hdr = [0xAA, 0xFF, 0xCC, 0x66]
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hdr.push raw_size & 0xFF
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hdr.push (raw_size >> 8) & 0xFF
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hdr.push (raw_size >> 16) & 0xFF
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hdr.push (raw_size >> 24) & 0xFF
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File.open("#{ARGV[0]}.bin", 'w+') do |wf|
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wf.write(hdr.pack('C*'))
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wf.write(f.read)
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wf.write([0].pack('C*'))
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end
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end
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