mirror of
https://github.com/rapid7/metasploitable3.git
synced 2024-07-18 00:00:41 +02:00
89 lines
2.5 KiB
Ruby
89 lines
2.5 KiB
Ruby
# -*- coding: binary -*-
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#!/usr/bin/env ruby
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require 'zlib'
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def load_image(fname)
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data = File.read(fname)
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Zlib::Deflate.deflate(data)
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end
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# http://www-mmsp.ece.mcgill.ca/documents/audioformats/wave/wave.html
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def make_wav(data_chunk)
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# 47202 test size
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size = 216 + data_chunk.length
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wav = ''
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# WAV RIFF Header
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wav << 'RIFF' # groupID
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wav << [ size ].pack('V') # WAV Size
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wav << 'WAVE' # Riff Type
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# FORMAT CHUNK
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wav << 'fmt ' # Chunk ID
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wav << [ 18 ].pack('V') # Chunk Size
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wav << [ 0x06 ].pack('v') # Format tag
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wav << [ 0x02 ].pack('v') # Channels
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wav << [ 0x1f40].pack('V') # Sample per sec
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wav << [ 0x3e80 ].pack('V') # Average Bytes per sec
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wav << [ 0x02 ].pack('v') # Block align
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wav << [ 0x08 ].pack('v') # Bits per sample
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wav << [ 0x00 ].pack('v')
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# Fact Chunk
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wav << 'fact' # Chunk ID
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wav << [ 0x04 ].pack('V') # Chunk size
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wav << [ 0x5bc5 ].pack('V') # uncompressed size
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# Data chunk
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wav << 'data' # Chunk ID
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wav << [ data_chunk.length ].pack('V') # Chunk size
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wav << data_chunk
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# afsp Chunk
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wav << 'afsp' # Chunk ID
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wav << [ 73 ].pack('V') # Chunk size
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wav << 'AFspdate: 2003-01-30 03:28:44 UTC'
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wav << "\x00"
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wav << 'user: kabal@CAPELLA'
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wav << "\x00"
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wav << 'program: CopyAudio'
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wav << [ 0x00 ].pack('v')
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# List chunk
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wav << 'LIST' # Chunk ID
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wav << [ 76 ].pack('V') # Chunk size
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wav << 'INFO'
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# Sub chunk: ICRD
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wav << 'ICRD' # Chunk ID
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wav << [ 0x18 ].pack('V') # Chunk size
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wav << '2003-01-30 03:28:44 UTC' # Timestamp
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wav << "\x00"
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# Sub Chunk: ISFT
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wav << 'ISFT' # Chunk ID
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wav << [ 0x0a ].pack('V') # Chunk Size
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wav << 'CopyAudio' # Value
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wav << "\x00"
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# Sub chunk: ICMT
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wav << 'ICMT' # Chunk ID
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wav << [ 0x0e ].pack('V') # Chunk Size
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wav << 'kabal@CAPELLA' # Value
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wav << "\x00"
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wav
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end
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# 'jack_of_clubs.PNG'
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image_fname = ARGV.shift
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output = ARGV.shift
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zip_image = load_image(image_fname)
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wav = make_wav(zip_image)
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File.open(output, 'wb') do |f|
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f.write(wav)
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end
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puts "Imaged zipped in a wav file."
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puts "Wav file written to #{output}"
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