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util: fix None value in find_diffs #74

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merged 1 commit into from
Jan 5, 2024
Merged

util: fix None value in find_diffs #74

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6 changes: 3 additions & 3 deletions kafl_fuzzer/common/util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -84,11 +84,11 @@ def read_binary_file(filename) -> bytes:
return f.read()

def find_diffs(data_a: bytes, data_b: bytes) -> Tuple[Optional[int], Optional[int]]:
first_diff = None
last_diff = None
first_diff = 0
last_diff = 0
for i in range(min(len(data_a), len(data_b))):
if data_a[i] != data_b[i]:
if first_diff is None:
if first_diff == 0:
first_diff = i
last_diff = i
return first_diff, last_diff
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