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| author |   CtrlZvi <viz+github@flippedperspective.com> | 2018-05-20 08:03:25 -0700 |
|---|---|---|
| committer |   Serhiy Storchaka <storchaka@gmail.com> | 2018-05-20 18:03:25 +0300 |
| commit | c66c342cb42ab8a88884527ddfe3a5086bc06316 (patch) | |
| tree | 63fbe92c9152418de4654f888d0c43af1ca9e9c5 /Lib/uuid.py | |
| parent | bpo-30940: Updating round() docs. (GH-6342) (diff) | |
| download | cpython-c66c342cb42ab8a88884527ddfe3a5086bc06316.tar.gz cpython-c66c342cb42ab8a88884527ddfe3a5086bc06316.tar.bz2 cpython-c66c342cb42ab8a88884527ddfe3a5086bc06316.zip | |
bpo-33542: Ignore DUID in uuid.get_node on Windows. (GH-6922)
uuid._ipconfig_getnode did not validate the maximum length of the value,
so long as the value had the same type of formatting as a MAC address.
This let it select DUIDs as MAC addresses. It now requires an exact
length match.
Diffstat (limited to 'Lib/uuid.py')
| -rw-r--r-- | Lib/uuid.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/uuid.py b/Lib/uuid.py index 9cb73e87718..66383218e70 100644 --- a/Lib/uuid.py +++ b/Lib/uuid.py @@ -488,7 +488,7 @@ def _ipconfig_getnode(): with proc: for line in proc.stdout: value = line.split(':')[-1].strip().lower() - if re.match('([0-9a-f][0-9a-f]-){5}[0-9a-f][0-9a-f]', value): + if re.fullmatch('(?:[0-9a-f][0-9a-f]-){5}[0-9a-f][0-9a-f]', value): mac = int(value.replace('-', ''), 16) if _is_universal(mac): return mac |