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gh-108948: tarfile should handle sticky bit in FreeBSD #108950

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6a4be8f
tarfile: fix sticky bit handling in FreeBSD
sorcio Sep 5, 2023
50729f7
📜🤖 Added by blurb_it.
blurb-it[bot] Sep 5, 2023
3587710
fix blurb
sorcio Sep 5, 2023
41491bb
fix blurb
sorcio Sep 5, 2023
4f6536d
fix chmod exception handler in tarfile
sorcio Sep 5, 2023
fe7dfed
chain exceptions
sorcio Sep 5, 2023
4009573
test exception branches
sorcio Sep 6, 2023
7b784b5
Update Lib/test/test_tarfile.py
sorcio Sep 7, 2023
02d7c21
add explanatory comment
sorcio Sep 15, 2023
94efbbb
apply review suggestions
sorcio Sep 15, 2023
d1824c8
fix expected mode
sorcio Sep 15, 2023
bd1dba7
avoid deprecation warnings
sorcio Sep 15, 2023
417e31a
Update Misc/NEWS.d/next/Library/2023-09-05-17-11-17.gh-issue-108948.H…
sorcio Sep 16, 2023
83c08fc
move tarfile eftype test
sorcio Sep 16, 2023
54f5548
eftype test should handle macos
sorcio Sep 16, 2023
b60ada6
use can_chmod_set_sticky helper where possible
sorcio Sep 16, 2023
5a51aab
bit of polishing
sorcio Sep 16, 2023
cac6595
split and refactor tests
sorcio Sep 16, 2023
23a6fd5
make TarFile.chmod slightly more readable
sorcio Sep 16, 2023
060bcb2
document tarfile behavior with sticky bit on files
sorcio Sep 16, 2023
5ae3e30
apply review suggestions
sorcio Sep 18, 2023
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use can_chmod_set_sticky helper where possible
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@sorcio
sorcio committed Sep 16, 2023
commit b60ada655f4f5564c90a2016ef7641c112e4c78b
17 changes: 4 additions & 13 deletions Lib/test/test_tarfile.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3879,19 +3879,10 @@ def test_modes(self):
tmp_filename = os.path.join(TEMPDIR, "tmp.file")
with open(tmp_filename, 'w'):
pass
new_mode = (os.stat(tmp_filename).st_mode
| stat.S_ISVTX | stat.S_ISGID | stat.S_ISUID)
try:
os.chmod(tmp_filename, new_mode)
except OSError as err:
# gh-108948: While chmod on most platforms silently ignores the
# sticky bit if it cannot be set (i.e. setting it on a file as
# non-root), chmod on FreeBSD raises EFTYPE to indicate the case.
if hasattr(errno, "EFTYPE") and err.errno == errno.EFTYPE:
# Retry without the sticky bit
os.chmod(tmp_filename, new_mode & ~stat.S_ISVTX)
else:
raise
new_mode = os.stat(tmp_filename).st_mode | stat.S_ISGID | stat.S_ISUID
if can_chmod_set_sticky():
new_mode |= stat.S_ISVTX
os.chmod(tmp_filename, new_mode)
got_mode = os.stat(tmp_filename).st_mode
_t_file = 't' if (got_mode & stat.S_ISVTX) else 'x'
_suid_file = 's' if (got_mode & stat.S_ISUID) else 'x'
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