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authorSerhiy Storchaka <storchaka@gmail.com>2013-04-08 19:35:02 (GMT)
committerSerhiy Storchaka <storchaka@gmail.com>2013-04-08 19:35:02 (GMT)
commita6df938fefd5b51d85a45cf3f29f60ee7bb21edf (patch)
treed2a5dd6baa1c9b84b7f17526513ecbb5d18c2f1a
parentcf86d9441ed09f0b7265a0a869c110f245336228 (diff)
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Close #17666: Fix reading gzip files with an extra field.
-rw-r--r--Lib/gzip.py3
-rw-r--r--Lib/test/test_gzip.py7
-rw-r--r--Misc/NEWS17
3 files changed, 23 insertions, 4 deletions
diff --git a/Lib/gzip.py b/Lib/gzip.py
index 8fb1ed0..0adfd3f 100644
--- a/Lib/gzip.py
+++ b/Lib/gzip.py
@@ -280,7 +280,8 @@ class GzipFile(io.BufferedIOBase):
if flag & FEXTRA:
# Read & discard the extra field, if present
- self._read_exact(struct.unpack("<H", self._read_exact(2)))
+ extra_len, = struct.unpack("<H", self._read_exact(2))
+ self._read_exact(extra_len)
if flag & FNAME:
# Read and discard a null-terminated string containing the filename
while True:
diff --git a/Lib/test/test_gzip.py b/Lib/test/test_gzip.py
index ba9d7da..b912576 100644
--- a/Lib/test/test_gzip.py
+++ b/Lib/test/test_gzip.py
@@ -379,6 +379,13 @@ class TestGzip(unittest.TestCase):
with gzip.GzipFile(fileobj=io.BytesIO(truncated[:i])) as f:
self.assertRaises(EOFError, f.read, 1)
+ def test_read_with_extra(self):
+ # Gzip data with an extra field
+ gzdata = (b'\x1f\x8b\x08\x04\xb2\x17cQ\x02\xff'
+ b'\x05\x00Extra'
+ b'\x0bI-.\x01\x002\xd1Mx\x04\x00\x00\x00')
+ with gzip.GzipFile(fileobj=io.BytesIO(gzdata)) as f:
+ self.assertEqual(f.read(), b'Test')
def test_main(verbose=None):
support.run_unittest(TestGzip)
diff --git a/Misc/NEWS b/Misc/NEWS
index 115b287..e3e203f 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -2,18 +2,29 @@
Python News
+++++++++++
-What's New in Python 3.2.4?
+What's New in Python 3.2.5?
===========================
-*Release date: 07-Apr-2013*
+*Release date: 13-May-2013*
Library
-------
- Issue #17192: Restore the patch for Issue #11729 and Issue #10309
- which were ommitted in 3.2.4 when updating the bundled version of
+ which were omitted in 3.2.4 when updating the bundled version of
libffi used by ctypes.
+- Issue #17666: Fix reading gzip files with an extra field.
+
+
+What's New in Python 3.2.4?
+===========================
+
+*Release date: 07-Apr-2013*
+
+Library
+-------
+
- Issue #17625: In IDLE, close the replace dialog after it is used.