From 328be6efa2b17120fcc3a9956d012a0c963edec1 Mon Sep 17 00:00:00 2001
From: Dobrica Pavlinusic <dpavlin@rot13.org>
Date: Fri, 20 Mar 2015 13:30:25 +0100
Subject: [PATCH] retry sip response

---
 scripts/RFID-JSONP-server.pl | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/scripts/RFID-JSONP-server.pl b/scripts/RFID-JSONP-server.pl
index 4bec23e..3e1d4fd 100755
--- a/scripts/RFID-JSONP-server.pl
+++ b/scripts/RFID-JSONP-server.pl
@@ -92,14 +92,18 @@ sub sip2_message {
 	
 	my $expect = substr($send,0,2) | 0x01;
 
-	my $in = <$sock>;
-	$in =~ s/^\n//;
-	warn "SIP2 <<<< ",dump($in), "\n";
+	my $in = '';
+	my $repeat = 1;
+	while ( $in eq '' && $repeat < 10 ) {
+		$in = <$sock>;
+		$in =~ s/^\n//;
+		$in =~ s/\r$//;
+		warn "SIP2 <<<< ",dump($in), " repeat: $repeat\n";
+		$repeat++;
+	}
 
 	die "expected $expect" unless substr($in,0,2) != $expect;
 
-	$in =~ s/\r$//;
-
 	my $hash;
 	if ( $in =~ s/^([0-9\s]+)// ) {
 		$hash->{fixed} = $1;
-- 
2.20.1