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fatfsgen.py: fixed missing NULL terminator

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This commit is contained in:
Martin Gaňo
2022-09-13 20:09:40 +02:00
parent 719ff3392e
commit 131b28314e
3 changed files with 9 additions and 7 deletions
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7
components/fatfs/fatfs_utils/long_filename_utils.py
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@@ -85,4 +85,9 @@ def build_lfn_full_name(name: str, extension: str) -> str:
The extension is optional, and the long filename entry explicitly specifies it,
on the opposite as for short file names.
"""
return f'{name}.{extension}' if len(extension) > 0 else name
lfn_record: str = f'{name}.{extension}' if len(extension) > 0 else name
# the name must be terminated with NULL terminator
# if it doesn't fit into the set of long name directory entries
if len(lfn_record) % Entry.CHARS_PER_ENTRY != 0:
return lfn_record + chr(0)
return lfn_record