From a9e33b8562e4923bcc2804a6a7bb78a4a0063a15 Mon Sep 17 00:00:00 2001
From: Erik Schnetter <schnetter@cct.lsu.edu>
Date: Sat, 5 Feb 2011 19:10:25 -0500
Subject: CarpetIOScalar: Handle case when getenv("USER") returns NULL

---
 Carpet/CarpetIOScalar/src/ioscalar.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'Carpet/CarpetIOScalar')

diff --git a/Carpet/CarpetIOScalar/src/ioscalar.cc b/Carpet/CarpetIOScalar/src/ioscalar.cc
index 382330d60..964498280 100644
--- a/Carpet/CarpetIOScalar/src/ioscalar.cc
+++ b/Carpet/CarpetIOScalar/src/ioscalar.cc
@@ -335,7 +335,10 @@ namespace CarpetIOScalar {
             if (want_date) {
               char run_host [1000];
               Util_GetHostName (run_host, sizeof run_host);
-              char const * const run_user = getenv ("USER");
+              char const * run_user = getenv ("USER");
+              if (not run_user) {
+                run_user = "";
+              }
               char run_date [1000];
               Util_CurrentDate (sizeof run_date, run_date);
               char run_time [1000];
-- 
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