X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnet_socket.c;h=9095d575c6a0caa633ab5bb9e5ffc64897ee7412;hp=b90dcf540b08f604b4862061b8c6ffb531fd47af;hb=4fe7aff4d1b8605d4997b842481cc78bd062fe2a;hpb=9bab08e972ae0ca4b904a659d9aed46aaa9b5dd5

diff --git a/src/net_socket.c b/src/net_socket.c
index b90dcf54..9095d575 100644
--- a/src/net_socket.c
+++ b/src/net_socket.c
@@ -1,7 +1,7 @@
 /*
     net_socket.c -- Handle various kinds of sockets.
-    Copyright (C) 1998-2003 Ivo Timmermans <ivo@o2w.nl>,
-                  2000-2003 Guus Sliepen <guus@sliepen.eu.org>
+    Copyright (C) 1998-2004 Ivo Timmermans <ivo@tinc-vpn.org>,
+                  2000-2004 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: net_socket.c,v 1.1.2.37 2003/12/20 21:09:33 guus Exp $
+    $Id$
 */
 
 #include "system.h"
@@ -41,6 +41,7 @@
 int addressfamily = AF_UNSPEC;
 int maxtimeout = 900;
 int seconds_till_retry = 5;
+bool blockingtcp = false;
 
 listen_socket_t listen_socket[MAXSOCKETS];
 int listen_sockets;
@@ -163,13 +164,9 @@ int setup_vpn_in_socket(const sockaddr_t *sa)
 	{
 		bool choice;
 
-		if(sa->sa.sa_family == AF_INET && get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) && choice) {
+		if(get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) && choice) {
 			option = IP_PMTUDISC_DO;
-			if(setsockopt(nfd, SOL_IP, IP_MTU_DISCOVER, &option, sizeof(option))) {
-				closesocket(nfd);
-				logger(LOG_ERR, _("Can't set PMTU discovery mode: %s"), strerror(errno));
-				return -1;
-			}
+			setsockopt(nfd, SOL_IP, IP_MTU_DISCOVER, &option, sizeof(option));
 		}
 	}
 #endif
@@ -178,13 +175,9 @@ int setup_vpn_in_socket(const sockaddr_t *sa)
 	{
 		bool choice;
 
-		if(sa->sa.sa_family == AF_INET6 && get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) && choice) {
+		if(get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) && choice) {
 			option = IPV6_PMTUDISC_DO;
-			if(setsockopt(nfd, SOL_IPV6, IPV6_MTU_DISCOVER, &option, sizeof(option))) {
-				closesocket(nfd);
-				logger(LOG_ERR, _("Can't set PMTU discovery mode: %s"), strerror(errno));
-				return -1;
-			}
+			setsockopt(nfd, SOL_IPV6, IPV6_MTU_DISCOVER, &option, sizeof(option));
 		}
 	}
 #endif
@@ -248,6 +241,16 @@ void finish_connecting(connection_t *c)
 
 	ifdebug(CONNECTIONS) logger(LOG_INFO, _("Connected to %s (%s)"), c->name, c->hostname);
 
+#ifdef O_NONBLOCK
+	if(blockingtcp) {
+		int flags = fcntl(c->socket, F_GETFL);
+
+		if(fcntl(c->socket, F_SETFL, flags & ~O_NONBLOCK) < 0) {
+			logger(LOG_ERR, _("fcntl for %s: %s"), c->hostname, strerror(errno));
+		}
+	}
+#endif
+
 	c->last_ping_time = now;
 
 	send_id(c);
@@ -433,6 +436,16 @@ bool handle_new_meta_connection(int sock)
 
 	ifdebug(CONNECTIONS) logger(LOG_NOTICE, _("Connection from %s"), c->hostname);
 
+#ifdef O_NONBLOCK
+	if(blockingtcp) {
+		int flags = fcntl(c->socket, F_GETFL);
+
+		if(fcntl(c->socket, F_SETFL, flags & ~O_NONBLOCK) < 0) {
+			logger(LOG_ERR, _("fcntl for %s: %s"), c->hostname, strerror(errno));
+		}
+	}
+#endif
+
 	connection_add(c);
 
 	c->allow_request = ID;