From 591846cd216928ab2102918580dc877ff31dfed4 Mon Sep 17 00:00:00 2001
From: Giuseppe Della Ricca <dellaric@users.noreply.github.com>
Date: Tue, 2 Nov 2021 20:43:36 +0100
Subject: [PATCH] [XrdThrottle] do not initialise a string with a null pointer

Fix for https://github.com/xrootd/xrootd/issues/1544
---
 src/XrdThrottle/XrdThrottleFile.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/XrdThrottle/XrdThrottleFile.cc b/src/XrdThrottle/XrdThrottleFile.cc
index afa4c493e2b..27d4d1a83e1 100644
--- a/src/XrdThrottle/XrdThrottleFile.cc
+++ b/src/XrdThrottle/XrdThrottleFile.cc
@@ -32,7 +32,7 @@ File::File(const char                     *user,
      m_sfs(sfs),
 #endif
      m_uid(0),
-     m_user(user),
+     m_user(user ? user : ""),
      m_throttle(throttle),
      m_eroute(eroute)
 {}