From f131b368e858d57f100699c0b7093aa64f536d9d Mon Sep 17 00:00:00 2001
From: mwiegand <mwiegand@seibert-media.net>
Date: Thu, 11 Aug 2022 11:24:17 +0200
Subject: [PATCH] check if proc entry is a directory

---
 procio.cr | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/procio.cr b/procio.cr
index 54ce48b..d958bb3 100644
--- a/procio.cr
+++ b/procio.cr
@@ -1,9 +1,9 @@
-dir = ENV.fetch("PROCIO_DIR", "/proc")
+dir = Path[ENV.fetch("PROCIO_DIR", "/proc")]
 result = {} of String => Array(UInt64)
 time = Time.local.to_s("%s%9N")
 
 Dir.entries(dir).each do |entry|
-  entry =~ /^\d+$/ || next 
+  next unless (entry =~ /^\d+$/) && File.directory?(dir/entry)
 
   begin
     comm = File.read("#{dir}/#{entry}/comm").chomp