add a flag to client_test to turn off upnp and nat-pmp

examples/client_test.cpp

@@ -778,6 +778,7 @@ int main(int argc, char* argv[])
 			"                        proxy specified by -P\n"
 			"  -H                    Don't start DHT\n"
 			"  -W <num peers>        Set the max number of peers to keep in the peer list\n"
+			"  -N                    Do not attempt to use UPnP and NAT-PMP to forward ports\n"
 			"  "
 			"\n\n"
 			"TORRENT is a path to a .torrent file\n"
@@ -800,6 +801,7 @@ int main(int argc, char* argv[])
 
 	int refresh_delay = 1;
 	bool start_dht = true;
+	bool start_upnp = true;
 
 	std::deque<std::string> events;
 
@@ -826,10 +828,6 @@ int main(int argc, char* argv[])
 			ses.load_state(e);
 	}
 
-	ses.start_lsd();
-	ses.start_upnp();
-	ses.start_natpmp();
-
 #ifndef TORRENT_DISABLE_GEO_IP
 	ses.load_asnum_db("GeoIPASNum.dat");
 	ses.load_country_db("GeoIP.dat");
@@ -944,7 +942,7 @@ int main(int argc, char* argv[])
 			case 'O': settings.allow_reordered_disk_operations = false; --i; break;
 			case 'P':
 				{
-					char* port = (char*) strchr(arg, ':');
+					char* port = (char*) strrchr(arg, ':');
 					if (port == 0)
 					{
 						fprintf(stderr, "invalid proxy hostname, no port found\n");
@@ -976,10 +974,18 @@ int main(int argc, char* argv[])
 				}
 				break;
 			case 'I': outgoing_interface = arg; break;
+			case 'N': start_upnp = false; --i; break;
 		}
 		++i; // skip the argument
 	}
 
+	ses.start_lsd();
+	if (start_upnp)
+	{
+		ses.start_upnp();
+		ses.start_natpmp();
+	}
+
 	ses.set_peer_proxy(ps);
 	ses.set_web_seed_proxy(ps);
 	ses.set_tracker_proxy(ps);