Put temporary files in new directory, for security

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@1042 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 5 insertions, 2 deletions

diff --git a/generator/ppmrainbow b/generator/ppmrainbow
index f98536cd..27717a06 100755
--- a/generator/ppmrainbow
+++ b/generator/ppmrainbow
@@ -47,7 +47,10 @@ if (!$norepeat) {
     push @colorlist, $ARGV[0];
 }
 
-my $tmpprefix = $tmpdir . "/$myname.$$.";
+my $ourtmp = "$tmpdir/ppmrainbow$$";
+mkdir($ourtmp, 0777) or
+    die("Unable to create directory for temporary files '$ourtmp");
+
 
 my $widthRemaining;
 my $n;
@@ -58,7 +61,7 @@ $widthRemaining = $Twid;
 @outlist = ();
 
 while (@colorlist >= 2) {
-    my $outfile = sprintf("%s%03u.ppm", $tmpprefix, $n);
+    my $outfile = sprintf("%s/file.%03u.ppm", $ourtmp, $n);
     push(@outlist, $outfile);
 
     my $w = int(($widthRemaining-1)/(@colorlist-1))+1;