From: Matthias Bethke <matthias.bethke@financial.com>
Date: Tue, 21 Jul 2015 08:02:16 +0000 (+0700)
Subject: make _escape_argument() readonly-safe on older Perls
X-Git-Tag: collectd-5.6.0~617^2
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F1153%2Fhead;p=thirdparty%2Fcollectd.git

make _escape_argument() readonly-safe on older Perls
---

diff --git a/bindings/perl/lib/Collectd/Unixsock.pm b/bindings/perl/lib/Collectd/Unixsock.pm
index 5c6a5f9d2..69c755b6a 100644
--- a/bindings/perl/lib/Collectd/Unixsock.pm
+++ b/bindings/perl/lib/Collectd/Unixsock.pm
@@ -137,13 +137,13 @@ sub _parse_identifier
 
 sub _escape_argument
 {
-	local $_ = shift;
+    my $arg = shift;
 
-	return $_ if /^\w+$/;
+	return $arg if $arg =~ /^\w+$/;
 
-	s#\\#\\\\#g;
-	s#"#\\"#g;
-	return "\"$_\"";
+	$arg =~ s#\\#\\\\#g;
+	$arg =~ s#"#\\"#g;
+	return "\"$arg\"";
 }
 
 # Send a command on a socket, including any required argument escaping.