From 10b389e7bebf5770c9ff7840acc9943eb2474b52 Mon Sep 17 00:00:00 2001
From: Yohann D'ANELLO <ynerant@crans.org>
Date: Tue, 22 Dec 2020 23:07:33 +0100
Subject: [PATCH] With Python 3.9, the crypt function raises an OSError See
 https://bugs.python.org/issue39289
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Signed-off-by: Yohann D'ANELLO <ynerant@¢rans.org>
Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>
---
 cas_server/utils.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cas_server/utils.py b/cas_server/utils.py
index f2bb4db..4ec2333 100644
--- a/cas_server/utils.py
+++ b/cas_server/utils.py
@@ -409,7 +409,10 @@ def crypt_salt_is_valid(salt):
                 if '$' not in salt[1:]:
                     return False
                 else:
-                    hashed = crypt.crypt("", salt)
+                    try:
+                        hashed = crypt.crypt("", salt)
+                    except OSError:
+                        return False
                     if not hashed or '$' not in hashed[1:]:
                         return False
                     else: