Improve instructions and quit on IRC connection error

Author: zouppen

README.md

@@ -8,9 +8,10 @@ connect to
 
 ## Installation
 
-Install the following:
+Install requirements on Debian/Ubuntu. Please match similar packages
+on other distributions.
 
-	php-cli php7.0-xml php-curl
+	sudo apt install php-cli php-xml php-curl
 
 Make configuration file
 

lib/network.php

@@ -1,5 +1,7 @@
 <?php
 
+require_once(__DIR__.'/err.php');
+
 $network_curlh = curl_init();
 
 // Close cURL handle on shutdown. Not sure if really needed.
@@ -33,6 +35,7 @@ function irc_raw($msg) {
     if ($network_irc === NULL) {
         // Connect first
         $network_irc = fsockopen($conf->irc_host, $conf->irc_port);
+        if ($network_irc === FALSE) err("Unable to connect to IRC");
         fwrite($network_irc, "PASS {$conf->irc_pass}\nUSER\nNICK\n");
     }
     fwrite($network_irc, $msg);