From 91b43d220b1268b6bc956dbb4eed5c2195b6ed28 Mon Sep 17 00:00:00 2001
From: Yorhel <git@yorhel.nl>
Date: Fri, 16 Oct 2020 12:49:47 +0200
Subject: [PATCH] Fix attempts to resolve man pages without name

A bot triggered 'GET /.env', resulting in a lookup on section='env' but
no name. Slow and useless...
---
 www/index.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/www/index.pl b/www/index.pl
index 7be242e..1259f33 100755
--- a/www/index.pl
+++ b/www/index.pl
@@ -1056,7 +1056,7 @@ sub dbManPrefName {
   my $man = $s->dbManPref(%o, name => $name);
   return ($man, '') if $man;
 
-  return (undef, '') if $name !~ s/\.([^.]+)$//;
+  return (undef, '') if $name !~ s/\.([^.]+)$// || !length $name;
   my $section = $1;
   $man = $s->dbManPref(%o, name => $name, section => $section);
   return ($man, $section) if $man;