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https://github.com/brain-hackers/lab
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Move append_nop.py
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35
x1/spray/append_nop.py
Executable file
35
x1/spray/append_nop.py
Executable file
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#!/usr/bin/env python3
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import sys
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def main():
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if len(sys.argv) < 5:
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print(f'Usage: {sys.argv[0]} top.bin bottom_loop.bin bottom_reset.bin out.bin reset_fill_from reset_fill_to', file=sys.stderr)
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sys.exit(1)
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with open(sys.argv[1], 'rb') as tf, open(sys.argv[2], 'rb') as btmlf, open(sys.argv[3], 'rb') as btmrf, open(sys.argv[4], 'wb') as out:
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top, btml, btmr = tf.read(), btmlf.read(), btmrf.read()
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fill_from, fill_to = int(sys.argv[5]), int(sys.argv[6])
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out.write(top)
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if fill_from == 0:
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blen, b = len(btmr), btmr
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else:
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blen, b = len(btml), btml
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for i in range((1024 * 64 - len(top) - blen) // 4):
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out.write(b'\x00\x00\xa0\xe1')
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out.write(b)
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for i in range(1024 * 1024 * 15 // (1024 * 64) - 1):
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if fill_from <= i+1 < fill_to:
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blen, b = len(btmr), btmr
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else:
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blen, b = len(btml), btml
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for j in range((1024 * 64 - blen) // 4):
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out.write(b'\x00\x00\xa0\xe1')
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out.write(b)
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main()
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