mirror of
https://github.com/rapid7/metasploitable3.git
synced 2024-09-19 00:00:54 +02:00
38 lines
694 B
Ruby
38 lines
694 B
Ruby
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# -*- coding: binary -*-
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#!/usr/bin/env ruby
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require 'zlib'
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def load_wav(fname)
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File.read(fname)
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end
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def find_data_chunk_offset(wav)
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wav.index('data') + 1
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end
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def get_data_chunk_size(wav)
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data_chunk_offset = find_data_chunk_offset(wav)
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wav[data_chunk_offset, 4].unpack('N').first
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end
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def extract_data_chunk(wav)
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chunk_offset = find_data_chunk_offset(wav)
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chunk_size = get_data_chunk_size(wav)
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wav[chunk_offset + 4 + 3, chunk_size]
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end
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wav_fname = ARGV.shift
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output = ARGV.shift
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wav = load_wav(wav_fname)
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data_chunk = extract_data_chunk(wav)
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data_chunk = Zlib::Inflate.inflate(data_chunk)
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File.open(output, 'wb') do |f|
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f.write(data_chunk)
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end
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puts "#{output} written"
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