Allow null-terminated octal file size byte (POSIX tarball variant)

Author: lmmx

.pre-commit-config.yaml

@@ -1,7 +1,7 @@
 ---
 repos:
   - repo: https://github.com/psf/black
-    rev: 21.6b0
+    rev: 23.3.0
     hooks:
       - id: black
         language_version: python3.8

src/range_streams/codecs/tar/stream.py

@@ -184,7 +184,10 @@ def read_file_size(self, start_pos_offset: int = 0) -> int:
         else:
             self.add(file_size_rng)
         file_size_b = self.active_range_response.read()
-        file_size = int(file_size_b, 8)  # convert octal number from bitstring
+        try:
+            file_size = int(file_size_b, 8)  # convert octal number from bitstring
+        except ValueError:
+            file_size = int(file_size_b.rstrip(b"\x00"), 8)  # may be null-terminated
         return file_size
 
     def add_file_ranges(self):