$NetBSD: patch-ax,v 1.6 2008/11/15 01:19:08 dmcmahill Exp $

Address tmp file vulnerability at http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4983

--- bin/scilink.orig	2001-04-26 07:43:33.000000000 +0000
+++ bin/scilink
@@ -15,30 +15,45 @@ export SCI
 shift
 LOCALPOS=`pwd`
 cd $SCI
-make show | grep -v make > /tmp/SciLink$$1
-sed -e "s+routines/default+\$SD+g"  -e "s+libs+\$SL+g" -e "s+./pvm3+\$SPVM+g" /tmp/SciLink$$1 > /tmp/SciLink$$2
+
+tmpd=/tmp/SciLink$$
+mkdir -m 0700 $tmpd
+rc=$?
+if test $rc -ne 0 ; then
+	cat << EOF
+
+ERROR:  $0 failed to create the directory 
+        $tmpd
+	securily.  It either already exists or you do not have sufficient permissions
+
+EOF
+	exit 1
+fi
+
+make show | grep -v make > ${tmpd}/SciLink1
+sed -e "s+routines/default+\$SD+g"  -e "s+libs+\$SL+g" -e "s+./pvm3+\$SPVM+g" ${tmpd}/SciLink1 > ${tmpd}/SciLink2
 for i in $*
 do
   x=`basename $i`
-  sed "s+\$SD/$x++g" /tmp/SciLink$$2 > /tmp/SciLink$$3
-  rm -f /tmp/SciLink$$2
-  mv /tmp/SciLink$$3 /tmp/SciLink$$2
+  sed "s+\$SD/$x++g" ${tmpd}/SciLink2 > ${tmpd}/SciLink3
+  rm -f ${tmpd}/SciLink2
+  mv ${tmpd}/SciLink3 ${tmpd}/SciLink2
 done
-echo "#!/bin/sh" > /tmp/SciLink$$3
-echo  SCI=$SCI >>  /tmp/SciLink$$3
-echo "SD=\$SCI/routines/default" >>  /tmp/SciLink$$3
-echo "SPVM=\$SCI/pvm3" >>  /tmp/SciLink$$3
-echo "SL=\$SCI/libs" >>  /tmp/SciLink$$3
-echo "LOCAL=\"$*\"" >>  /tmp/SciLink$$3
-sed -e "s+\$SL+ \$LOCAL \$SL+" -e "s+show+scilex+g" /tmp/SciLink$$2 >> /tmp/SciLink$$3
+echo "#!/bin/sh" > ${tmpd}/SciLink3
+echo  SCI=$SCI >>  ${tmpd}/SciLink3
+echo "SD=\$SCI/routines/default" >>  ${tmpd}/SciLink3
+echo "SPVM=\$SCI/pvm3" >>  ${tmpd}/SciLink3
+echo "SL=\$SCI/libs" >>  ${tmpd}/SciLink3
+echo "LOCAL=\"$*\"" >>  ${tmpd}/SciLink3
+sed -e "s+\$SL+ \$LOCAL \$SL+" -e "s+show+scilex+g" ${tmpd}/SciLink2 >> ${tmpd}/SciLink3
 cd $LOCALPOS
-mv /tmp/SciLink$$3 Script
+mv ${tmpd}/SciLink3 Script
 chmod +x Script 
 echo "Linking a new Scilab with " $*
 ./Script 
 echo "I've created : scilex and scilab which uses that scilex"
 sed -e "s+\$SCI/bin/scilex+`pwd`/scilex+g" $SCI/bin/scilab > scilab 
 chmod +x scilab 
-#rm -f /tmp/SciLink*
+rm -fr ${tmpd}