From 5d4d0f28ced2c4cd7f4354458b279a25612753a2 Mon Sep 17 00:00:00 2001
From: "B. Watson" <urchlay@slackware.uk>
Date: Tue, 20 Oct 2026 06:06:36 -0400
Subject: Better error detection for mask.

---
 greypool | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/greypool b/greypool
index 8ccfba9..073512f 100755
--- a/greypool
+++ b/greypool
@@ -302,7 +302,9 @@ sub parse_transform {
 	my $junk;
 	($pkg, $subst, $junk) = split /\s+/, $_[0];
 
-	fatal "$config_file:$.: trailing junk on transform line" if $junk;
+	if(defined $junk || !defined $subst || !defined $pkg) {
+		fatal "$config_file:$.: transform requires exactly 2 arguments";
+	}
 
 	eval 'my $i = ""; $i =~ ' . $subst . ';';
 	if($@) {
-- 
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