X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnet_socket.c;h=c70be2f05368bb7c390d3de7c338d7403b046107;hp=ab2d79d2af5037269e7fa22f92c4ddc0da8cf8dc;hb=e9576632dc4b780b867044269d06cc50f76d8c05;hpb=a5a4d2b865879b8694760c0a5b5909c9a3675027

diff --git a/src/net_socket.c b/src/net_socket.c
index ab2d79d2..c70be2f0 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) 1998-2005 Ivo Timmermans <ivo@tinc-vpn.org>,
-                  2000-2005 Guus Sliepen <guus@tinc-vpn.org>
+    Copyright (C) 1998-2005 Ivo Timmermans,
+                  2000-2008 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
@@ -46,7 +46,6 @@
 int addressfamily = AF_UNSPEC;
 int maxtimeout = 900;
 int seconds_till_retry = 5;
-bool blockingtcp = false;
 
 listen_socket_t listen_socket[MAXSOCKETS];
 int listen_sockets;
@@ -58,12 +57,16 @@ static void configure_tcp(connection_t *c)
 	int option;
 
 #ifdef O_NONBLOCK
-	if(!blockingtcp) {
-		int flags = fcntl(c->socket, F_GETFL);
+	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));
-		}
+	if(fcntl(c->socket, F_SETFL, flags | O_NONBLOCK) < 0) {
+		logger(LOG_ERR, _("fcntl for %s: %s"), c->hostname, strerror(errno));
+	}
+#elif defined(WIN32)
+	unsigned long arg = 1;
+
+	if(ioctlsocket(c->socket, FIONBIO, &arg) != 0) {
+		logger(LOG_ERR, _("ioctlsocket for %s: WSA error %d"), c->hostname, WSAGetLastError());
 	}
 #endif
 
@@ -99,6 +102,11 @@ int setup_listen_socket(const sockaddr_t *sa)
 	option = 1;
 	setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, &option, sizeof(option));
 
+#if defined(SOL_IPV6) && defined(IPV6_V6ONLY)
+	if(sa->sa.sa_family == AF_INET6)
+		setsockopt(nfd, SOL_IPV6, IPV6_V6ONLY, &option, sizeof option);
+#endif
+
 	if(get_config_string
 	   (lookup_config(config_tree, "BindToInterface"), &iface)) {
 #if defined(SOL_SOCKET) && defined(SO_BINDTODEVICE)
@@ -163,11 +171,26 @@ int setup_vpn_in_socket(const sockaddr_t *sa)
 			return -1;
 		}
 	}
+#elif defined(WIN32)
+	{
+		unsigned long arg = 1;
+		if(ioctlsocket(nfd, FIONBIO, &arg) != 0) {
+			closesocket(nfd);
+			logger(LOG_ERR, _("Call to `%s' failed: WSA error %d"), "ioctlsocket",
+				WSAGetLastError());
+			return -1;
+		}
+	}
 #endif
 
 	option = 1;
 	setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, &option, sizeof(option));
 
+#if defined(SOL_IPV6) && defined(IPV6_V6ONLY)
+	if(sa->sa.sa_family == AF_INET6)
+		setsockopt(nfd, SOL_IPV6, IPV6_V6ONLY, &option, sizeof option);
+#endif
+
 #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO)
 	{
 		bool choice;
@@ -245,8 +268,6 @@ void retry_outgoing(outgoing_t *outgoing)
 
 void finish_connecting(connection_t *c)
 {
-	int option;
-
 	cp();
 
 	ifdebug(CONNECTIONS) logger(LOG_INFO, _("Connected to %s (%s)"), c->name, c->hostname);
@@ -261,7 +282,7 @@ void finish_connecting(connection_t *c)
 void do_outgoing_connection(connection_t *c)
 {
 	char *address, *port;
-	int option, result, flags;
+	int result;
 
 	cp();
 
@@ -289,7 +310,8 @@ begin:
 	}
 
 	if(!c->outgoing->aip) {
-		freeaddrinfo(c->outgoing->ai);
+		if(c->outgoing->ai)
+			freeaddrinfo(c->outgoing->ai);
 		c->outgoing->ai = NULL;
 		goto begin;
 	}
@@ -314,6 +336,12 @@ begin:
 		goto begin;
 	}
 
+#if defined(SOL_IPV6) && defined(IPV6_V6ONLY)
+	int option = 1;
+	if(c->address.sa.sa_family == AF_INET6)
+		setsockopt(c->socket, SOL_IPV6, IPV6_V6ONLY, &option, sizeof option);
+#endif
+
 	/* Optimize TCP settings */
 
 	configure_tcp(c);
@@ -323,7 +351,11 @@ begin:
 	result = connect(c->socket, &c->address.sa, SALEN(c->address.sa));
 
 	if(result == -1) {
-		if(errno == EINPROGRESS) {
+		if(errno == EINPROGRESS
+#if defined(WIN32) && !defined(O_NONBLOCK)
+		   || WSAGetLastError() == WSAEWOULDBLOCK
+#endif
+		) {
 			c->status.connecting = true;
 			return;
 		}
@@ -391,10 +423,10 @@ void setup_outgoing_connection(outgoing_t *outgoing)
 */
 bool handle_new_meta_connection(int sock)
 {
-	int option;
 	connection_t *c;
 	sockaddr_t sa;
-	int fd, len = sizeof(sa);
+	int fd;
+	socklen_t len = sizeof(sa);
 
 	cp();
 
@@ -409,7 +441,7 @@ bool handle_new_meta_connection(int sock)
 	sockaddrunmap(&sa);
 
 	c = new_connection();
-	c->name = NULL;
+	c->name = xstrdup("<unknown>");
 	c->outcipher = myself->connection->outcipher;
 	c->outdigest = myself->connection->outdigest;
 	c->outmaclength = myself->connection->outmaclength;