From 784642327bfb0d3456ce94257c4108f6b577f99a Mon Sep 17 00:00:00 2001
From: Urban Müller
Date: Tue, 24 Sep 2019 14:56:16 +0200
Subject: use effective uid, avoid it::exec

---
 it.class | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/it.class b/it.class
index 4d05a2c..ee5b8ad 100644
--- a/it.class
+++ b/it.class
@@ -290,7 +290,10 @@ static function error($p = array())
 			if (!it::is_live() || array_diff($debugparams, it::match('[-\w]+', $GLOBALS['ULTRAHOME'], ['all' => true]), ["devel", "twin", "utf8check", gethostname()]))
 				$type = mb_strtolower($type);
 
-			$from = trim(it::exec('echo \"$USER@`hostname`\" "<$USER@`dnsdomainname | grep . || hostname -f`>"'));
+			$hostname = gethostname();
+			$user = posix_getpwuid(posix_geteuid())['name'];
+			$from = "\"$user@$hostname\" <$user@" . gethostbyaddr(gethostbyname($hostname)) .">";
+
 			it::mail(['From' => $from, 'To' => $p['to'], 'Subject' => $type . substr($p['title'], 0, 160), 'Body' => $body, 'Cc' => $GLOBALS['it_defaultconfig']['error_cc'], 'forcemail' => !it::is_devel()]);
 			$p['title'] = "Mail: " . $p['title'];
 		}
-- 
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