diff -r b34a1b2421fb -r 4d7a96c5d1ff www-thermferm/utilities.php
--- a/www-thermferm/utilities.php	Fri Aug 08 23:07:44 2014 +0200
+++ b/www-thermferm/utilities.php	Sat Aug 09 11:29:02 2014 +0200
@@ -27,7 +27,6 @@
     $sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
 
     if (!($sock === false)) {
-//	if (socket_connect($sock, "rpi02", 6554)) {    
 	if (socket_connect($sock, "localhost", 6554)) {
 	    socket_set_option($sock, SOL_SOCKET, SO_RCVTIMEO, array('sec' => 15, 'usec' => 0));
 	} else {
@@ -39,6 +38,50 @@
 
 
 
+/*
+ * @param string $command to send to the server.
+ * Return: string with the complete reply from the
+ *         server. This can be a multiline reply.
+ */
+function send_cmd($command)
+{
+    $sock = open_socket();
+    if ($sock == false) {
+	return "";
+    }
+    socket_write($sock, $command, 4096);
+
+    $answer = "";
+    while (1) {
+	$line = socket_read($sock, 4096);
+	if ($line === '')
+	    break;
+	$answer .= $line;
+    }
+    socket_close($sock);
+
+    return $answer;
+}
+
+
+
+/*
+ * @param string $command to send to the server.
+ * Return: 0 = Ok.
+ *         1 = Server responden with an error.
+ */
+function send_cmd_check($command)
+{
+    $answer = send_cmd($command);
+
+    if (strlen($answer) && (($answer[0] == '1') || ($answer[0] == '2')))
+	return 0;
+
+    return 1;
+}
+
+
+
 function startsWith($haystack, $needle)
 {
     return !strncmp($haystack, $needle, strlen($needle));
@@ -95,23 +138,3 @@
 }
 
 
-/*
- * Send command
- */
-function send_cmd($cmd) {
-    $sock = open_socket();
-    if ($sock != false) {
-	/*
-	 * Send command and absorb the result.
-	 */
-	socket_write($sock, $cmd, 4096);
-	while (1) {
-	    $line = socket_read($sock, 4096);
-	    if ($line === '')
-		break;
-	}
-	socket_close($sock);
-    }
-}
-
-