[issue40757] tarfile: ignore_zeros = True won't raise exception even on invalid (non-zero) TARs

[Irit Katriel]

Irit Katriel <iritkatriel at gmail.com> added the comment:

I am unable to reproduce this on 3.11:

>>> import tarfile

>>> tarfile.open( "foo.txt" )
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/iritkatriel/src/cpython-1/Lib/tarfile.py", line 1613, in open
    return func(name, "r", fileobj, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/iritkatriel/src/cpython-1/Lib/tarfile.py", line 1679, in gzopen
    fileobj = GzipFile(name, mode + "b", compresslevel, fileobj)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/iritkatriel/src/cpython-1/Lib/gzip.py", line 174, in __init__
    fileobj = self.myfileobj = builtins.open(filename, mode or 'rb')
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'foo.txt'



>>> tarfile.open( "foo.txt", ignore_zeros = True )
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/iritkatriel/src/cpython-1/Lib/tarfile.py", line 1613, in open
    return func(name, "r", fileobj, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/iritkatriel/src/cpython-1/Lib/tarfile.py", line 1679, in gzopen
    fileobj = GzipFile(name, mode + "b", compresslevel, fileobj)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/iritkatriel/src/cpython-1/Lib/gzip.py", line 174, in __init__
    fileobj = self.myfileobj = builtins.open(filename, mode or 'rb')
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'foo.txt'
>>>

----------
nosy: +iritkatriel
resolution:  -> out of date
status: open -> pending

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40757>
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