Index: lbdb-0.34/lbdb_lib.sh.in
===================================================================
--- lbdb-0.34.orig/lbdb_lib.sh.in
+++ lbdb-0.34/lbdb_lib.sh.in
@@ -55,21 +55,18 @@ lbdb_hostname()
 	if test "x$MAIL_DOMAIN_NAME" != "x" ; then
 		hn=$MAIL_DOMAIN_NAME
 	elif test -f /etc/mailname; then
-		hn=`cat /etc/mailname`
+		read hn < /etc/mailname
 	else
 		hn=""
 		if test -r /etc/resolv.conf ; then
-			hn="`sed -n -e 's/^[ 	]*domain[ 	]\{1,\}\([^ ]*\)/\1/p' /etc/resolv.conf`"
-			if test "x$hn" = "x" ; then
-				hn="`sed -n -e 's/^[ 	]*search[ 	]\{1,\}\([^ ]*\)/\1/p' /etc/resolv.conf`"
-			fi
+			hn=`awk '/^#/{next}($1 == "search" || $1 == "domain" ) && $2 != "" {print $2;exit}' < /etc/resolv.conf`
 		fi
 		if test "x$hn" = "x" ; then
 			hn=`lbdb_hn_sendmail`
 			if test "x$hn" = "xNONE" ; then
 				for i in /etc/HOSTNAME /etc/hostname ; do
 					if test -f $i ; then
-						hn="`cat $i`"
+						read hn < $i
 						break;
 					fi
 				done