From 4b3f93063958834e3d55089d23d16ad242430bf8 Mon Sep 17 00:00:00 2001
From: Daniel Black <daniel@mariadb.org>
Date: Mon, 10 Jul 2023 11:40:00 +1000
Subject: [PATCH] MDEV-31336: pam_user_map : not supporting username or
 groupname containing @ character

Add @ to the allowed characters in a username.
---
 plugin/auth_pam/mapper/pam_user_map.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugin/auth_pam/mapper/pam_user_map.c b/plugin/auth_pam/mapper/pam_user_map.c
index fa8d9ae08c16f..5dda97a20cdf8 100644
--- a/plugin/auth_pam/mapper/pam_user_map.c
+++ b/plugin/auth_pam/mapper/pam_user_map.c
@@ -216,7 +216,7 @@ int pam_sm_authenticate(pam_handle_t *pamh, int flags,
     }
     from= s;
     skip(isalnum(*s) || (*s == '_') || (*s == '.') || (*s == '-') ||
-         (*s == '$') || (*s == '\\') || (*s == '/'));
+         (*s == '$') || (*s == '\\') || (*s == '/') || (*s == '@'));
     end_from= s;
     skip(isspace(*s));
     if (end_from == from || *s++ != ':') goto syntax_error;