From ded480239d457c0921262e9095503824fcc7bf6e Mon Sep 17 00:00:00 2001
From: wolfgang Clauss <wolfgang.clauss@ondics.de>
Date: Sun, 28 Aug 2016 13:50:17 +0200
Subject: [PATCH 1/2] created socket server for better debugging of incoming
 bytes - initial commit

---
 README.md          |   5 +++
 server-hexdump.php | 102 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 107 insertions(+)
 create mode 100644 server-hexdump.php

diff --git a/README.md b/README.md
index f5309cd..b6a60a4 100644
--- a/README.md
+++ b/README.md
@@ -20,4 +20,9 @@ Run
 > php server.php
 >
 > telnet 127.0.0.1 4444
+---------------------
+
+Run for better debugging of incoming bytes. Output is similar to Unix command ```hexdump -C```
+
+> php server-hexdump.php
 
diff --git a/server-hexdump.php b/server-hexdump.php
new file mode 100644
index 0000000..29c44a7
--- /dev/null
+++ b/server-hexdump.php
@@ -0,0 +1,102 @@
+<?php
+
+/**
+ * Check dependencies
+ */
+if( ! extension_loaded('sockets' ) ) {
+	echo "This example requires sockets extension (http://www.php.net/manual/en/sockets.installation.php)\n";
+	exit(-1);
+}
+
+if( ! extension_loaded('pcntl' ) ) {
+	echo "This example requires PCNTL extension (http://www.php.net/manual/en/pcntl.installation.php)\n";
+	exit(-1);
+}
+
+/**
+ * Connection handler
+ */
+function onConnect( $client ) {
+	$pid = pcntl_fork();
+	
+	if ($pid == -1) {
+		 die('could not fork');
+	} else if ($pid) {
+		// parent process
+		pcntl_wait($status,WNOHANG);
+		return;
+	}
+	
+	$read = '';
+	printf( "[%s] Connected at port %d\n", $client->getAddress(), $client->getPort() );
+	//echo "client: ".print_r($client,true)."\n";
+	printf( "  PID   Addr    Hex-Values                   Characters\n");
+	printf( "==============================================================\n");
+	while( true ) {
+		$read = $client->read();
+		if( $read != '' ) {
+			$client->send( '[' . date( DATE_RFC822 ) . '] ' . $read  );
+		}
+		else {
+			break;
+		}
+		
+		if( preg_replace( '/[^a-z]/', '', $read ) == 'exit' ) {
+			break;
+		}
+		if( $read === null ) {
+			printf( "[%s] Disconnected\n", $client->getAddress() );
+			return false;
+		}
+		else {
+			//printf( "%d [%s] recieved: %s\n", getmypid(), $client->getAddress(), $read );
+			$len=strlen($read);
+			printf( "%6d  recieved: %d (%04X) Bytes:\n", getmypid(),$len,$len);
+			$adresse=0;
+			for ($i=0; $i<$len+(8-($len%8)); $i++) {
+				if ($i % 8 == 0)
+					printf("%6d  %04X:  ",getmypid(),$adresse);
+				if (($i % 4) ==0)
+					echo " ";
+				if ($i<$len) {
+					$zeichen=substr($read,$i,1);
+					printf("%02x ",ord($zeichen));
+				} else {
+					echo "   ";
+				}
+				if (($i+1)%8==0) {
+					echo "   |";
+					for ($j=$adresse; $j<$adresse+8; $j++) {
+						if ($j>=$len) {
+							echo " ";
+							continue;
+						}
+						$zeichen=substr($read,$j,1);
+						if (ctype_print($zeichen))
+							echo $zeichen;
+						else {
+							$zeichen =  addcslashes($zeichen,"\n\r\t");
+							if (ctype_print($zeichen))
+								echo $zeichen;
+							else
+								echo ".";
+						}
+					}
+					echo "|\n";
+					$adresse += 8;
+				}
+				
+			}
+		}
+	}
+	$client->close();
+	printf( "[%s] Disconnected\n", $client->getAddress() );
+	
+}
+
+require "sock/SocketServer.php";
+
+$server = new \Sock\SocketServer();
+$server->init();
+$server->setConnectionHandler( 'onConnect' );
+$server->listen();

From db64120ba42f4c839cad3f1ff685251c2b7e19be Mon Sep 17 00:00:00 2001
From: wolfgang Clauss <wolfgang.clauss@ondics.de>
Date: Sun, 28 Aug 2016 13:51:38 +0200
Subject: [PATCH 2/2] formatting

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index b6a60a4..c041443 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,8 @@ Run
 > php server.php
 >
 > telnet 127.0.0.1 4444
+
+
 ---------------------
 
 Run for better debugging of incoming bytes. Output is similar to Unix command ```hexdump -C```