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Skip 4-byte Magic on corrupted message #73

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Merged
aigarius merged 1 commit into from
Aug 28, 2026
Merged

Skip 4-byte Magic on corrupted message #73

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6 changes: 5 additions & 1 deletion dlt/dlt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -658,7 +658,11 @@ def _find_next_header(self):
:rtype: int
"""
with open(self.filename, "rb") as fobj:
last_position = self.file_position # pylint: disable=access-member-before-definition
# Skip past the 4-byte DLT\x01 magic of the known-bad message.
# Starting at file_position would find its own magic at offset 0,
# causing the caller to treat it as unrecoverable and break.
# This only happens if the magic isn't also corrupted.
last_position = self.file_position + 4 # pylint: disable=access-member-before-definition
fobj.seek(last_position)
buf = fobj.read(1024)
while buf:
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