From ef16387ca0abe7ff10daf4d9cbdc984c8e1b2938 Mon Sep 17 00:00:00 2001
From: Tobias Tiederle <ttiederle@fimltd.org>
Date: Tue, 17 Jan 2023 11:23:51 +0000
Subject: [PATCH] fix parsing unknown perfdata value

fixes #700
---
 library/Icingadb/Util/PerfData.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/library/Icingadb/Util/PerfData.php b/library/Icingadb/Util/PerfData.php
index 2d83c540..eccafc54 100644
--- a/library/Icingadb/Util/PerfData.php
+++ b/library/Icingadb/Util/PerfData.php
@@ -426,13 +426,17 @@ class PerfData
         $parts = explode(';', $this->perfdataValue);
 
         $matches = array();
-        if (preg_match('@^(-?(?:\d+)?(?:\.\d+)?)([a-zA-Z%°]{1,3})$@u', $parts[0], $matches)) {
+        if (preg_match('@^(U|-?(?:\d+)?(?:\.\d+)?)([a-zA-TV-Z%°]{1,3})$@u', $parts[0], $matches)) {
             $this->unit = $matches[2];
             $this->value = $matches[1];
         } else {
             $this->value = $parts[0];
         }
 
+        if (! is_numeric($this->value)) {
+            $this->value = null;
+        }
+
         switch (count($parts)) {
             /* @noinspection PhpMissingBreakStatementInspection */
             case 5: