From cc128417dcf129557bd5db0dafbfbe0a19366ed3 Mon Sep 17 00:00:00 2001
From: Stefan Ritt <stefan.ritt@psi.ch>
Date: Mon, 19 Dec 2016 12:27:52 +0100
Subject: [PATCH] Fixed crash when no username and email are supplied in the
 login page

---
 src/elogd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/elogd.c b/src/elogd.c
index 2ad978bd..26302c6a 100755
--- a/src/elogd.c
+++ b/src/elogd.c
@@ -25772,7 +25772,7 @@ int get_user_line(LOGBOOK * lbs, char *user, char *password, char *full_name, ch
          sprintf(str, "/list/user[name=%s]", user);
          if ((user_node = mxml_find_node(lbs->pwd_xml_tree, str)) == NULL)
             return 2;
-      } else if (email[0]) {
+      } else if (email && email[0]) {
          sprintf(str, "/list/user[email=%s]", email);
          if ((user_node = mxml_find_node(lbs->pwd_xml_tree, str)) == NULL)
             return 2;