angr/tests/knowledge_plugins/test_patches.py
Kevin Phoenix f939c5b88c
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2026-06-02 14:48:07 -07:00

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Python
Executable file

#!/usr/bin/env python3
# pylint:disable=no-self-use
from __future__ import annotations
__package__ = __package__ or "tests.knowledge_plugins" # pylint:disable=redefined-builtin
import os
import unittest
import angr
from tests.common import bin_location
test_location = os.path.join(bin_location, "tests")
class PatchTests(unittest.TestCase):
"""
Basic PatchManager tests
"""
def test_patch_vulnerable_fauxware_amd64(self):
binpath = os.path.join(test_location, "x86_64", "vulns", "vulnerable_fauxware")
proj = angr.Project(binpath, auto_load_libs=False)
proj.kb.patches.add_patch(0x40094C, b"\x0a")
patched = proj.kb.patches.apply_patches_to_binary()
# manual patch
with open(binpath, "rb") as f:
binary_data = f.read()
binary_data = binary_data[:0x94C] + b"\x0a" + binary_data[0x94D:]
assert patched == binary_data
def test_block_factory_returns_patched_bytes(self):
binpath = os.path.join(test_location, "x86_64", "fauxware")
proj = angr.Project(binpath, auto_load_libs=False)
addr = 0x4007D3
patch_bytes = proj.arch.keystone.asm("inc rax; leave; ret", addr, as_bytes=True)[0]
proj.kb.patches.add_patch(addr, patch_bytes)
b = proj.factory.block(addr)
assert b.bytes == patch_bytes
if __name__ == "__main__":
unittest.main()