Pillow/Tests/check_icns_dos.py

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# Tests potential DOS of IcnsImagePlugin with 0 length block.
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# Run from anywhere that PIL is importable.
from io import BytesIO
from PIL import Image
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from PIL._util import py3
if py3:
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Image.open(BytesIO(bytes("icns\x00\x00\x00\x10hang\x00\x00\x00\x00", "latin-1")))
else:
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Image.open(BytesIO(bytes("icns\x00\x00\x00\x10hang\x00\x00\x00\x00")))