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gh-100374: Fixed a bug in socket.getfqdn() (gh-100375)

This commit is contained in:
Dominic Socular 2022-12-21 21:25:04 +08:00 committed by GitHub
parent a7715ccfba
commit 12be23cf3c
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 7 additions and 2 deletions
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4
Lib/socket.py
View File

@ -785,11 +785,11 @@ def getfqdn(name=''):
First the hostname returned by gethostbyaddr() is checked, then
possibly existing aliases. In case no FQDN is available and `name`
was given, it is returned unchanged. If `name` was empty or '0.0.0.0',
was given, it is returned unchanged. If `name` was empty, '0.0.0.0' or '::',
hostname from gethostname() is returned.
"""
name = name.strip()
if not name or name == '0.0.0.0':
if not name or name in ('0.0.0.0', '::'):
name = gethostname()
try:
hostname, aliases, ipaddrs = gethostbyaddr(name)

4
Lib/test/test_socket.py
View File

@ -1769,6 +1769,10 @@ class GeneralModuleTests(unittest.TestCase):
)
self.assertEqual(sockaddr, ('ff02::1de:c0:face:8d', 1234, 0, 0))
def test_getfqdn_filter_localhost(self):
self.assertEqual(socket.getfqdn(), socket.getfqdn("0.0.0.0"))
self.assertEqual(socket.getfqdn(), socket.getfqdn("::"))
@unittest.skipUnless(socket_helper.IPV6_ENABLED, 'IPv6 required for this test.')
@unittest.skipIf(sys.platform == 'win32', 'does not work on Windows')
@unittest.skipIf(AIX, 'Symbolic scope id does not work')

1
Misc/NEWS.d/next/Core and Builtins/2022-12-20-16-14-19.gh-issue-100374.YRrVHT.rst Normal file
View File

@ -0,0 +1 @@
Fix incorrect result and delay in :func:`socket.getfqdn`. Patch by Dominic Socular.