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author | Miss Skeleton (bot) <31488909+miss-islington@users.noreply.github.com> | 2020-10-20 07:17:58 (GMT) |
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committer | GitHub <noreply@github.com> | 2020-10-20 07:17:58 (GMT) |
commit | e7c5a43984f82ef9634cb0b2b8c4750b2fd431a0 (patch) | |
tree | d5a82fc51c3700ae6e7bd09803d8440fdc037bed /Lib/urllib/request.py | |
parent | 65894cac0835cb8f469f649e20aa1be8bf89f5ae (diff) | |
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bpo-41471: Ignore invalid prefix lengths in system proxy settings on macOS (GH-22762) (GH-22774)
(cherry picked from commit 93a1ccabdede416425473329b8c718d507c55e29)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
Diffstat (limited to 'Lib/urllib/request.py')
-rw-r--r-- | Lib/urllib/request.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py index e440738..afd6341 100644 --- a/Lib/urllib/request.py +++ b/Lib/urllib/request.py @@ -2604,6 +2604,11 @@ def _proxy_bypass_macosx_sysconf(host, proxy_settings): mask = 8 * (m.group(1).count('.') + 1) else: mask = int(mask[1:]) + + if mask < 0 or mask > 32: + # System libraries ignore invalid prefix lengths + continue + mask = 32 - mask if (hostIP >> mask) == (base >> mask): |