C++ (Cpp) retry_outgoing Examples

Example #1

File: net.c Project: codoranro/tinc

/*
  Terminate a connection:
  - Close the socket
  - Remove associated edge and tell other connections about it if report = true
  - Check if we need to retry making an outgoing connection
  - Deactivate the host
*/
void terminate_connection(connection_t *c, bool report) {
	if(c->status.remove)
		return;

	ifdebug(CONNECTIONS) logger(LOG_NOTICE, "Closing connection with %s (%s)",
			   c->name, c->hostname);

	c->status.remove = true;
	c->status.active = false;

	if(c->node)
		c->node->connection = NULL;

	if(c->socket)
		closesocket(c->socket);

	if(c->edge) {
		if(report && !tunnelserver)
			send_del_edge(broadcast, c->edge);

		edge_del(c->edge);

		/* Run MST and SSSP algorithms */

		graph();

		/* If the node is not reachable anymore but we remember it had an edge to us, clean it up */

		if(report && !c->node->status.reachable) {
			edge_t *e;
			e = lookup_edge(c->node, myself);
			if(e) {
				if(!tunnelserver)
					send_del_edge(broadcast, e);
				edge_del(e);
			}
		}
	}

	/* Check if this was our outgoing connection */

	if(c->outgoing) {
		retry_outgoing(c->outgoing);
		c->outgoing = NULL;
	}

	free(c->outbuf);
	c->outbuf = NULL;
	c->outbuflen = 0;
	c->outbufsize = 0;
	c->outbufstart = 0;
}

Example #2

File: net_socket.c Project: BTCDDev/VpnCoin-mac

void do_outgoing_connection(connection_t *c) {
	char *address, *port, *space;
	struct addrinfo *proxyai = NULL;
	int result;

	if(!c->outgoing) {
		logger(LOG_ERR, "do_outgoing_connection() for %s called without c->outgoing", c->name);
		abort();
	}

begin:
	if(!c->outgoing->ai) {
		if(!c->outgoing->cfg) {
			ifdebug(CONNECTIONS) logger(LOG_ERR, "Could not set up a meta connection to %s",
					   c->name);
			c->status.remove = true;
			retry_outgoing(c->outgoing);
			c->outgoing = NULL;
			return;
		}

		get_config_string(c->outgoing->cfg, &address);

		space = strchr(address, ' ');
		if(space) {
			port = xstrdup(space + 1);
			*space = 0;
		} else {
			if(!get_config_string(lookup_config(c->config_tree, "Port"), &port))
				port = xstrdup("655");
		}

		c->outgoing->ai = str2addrinfo(address, port, SOCK_STREAM);
		free(address);
		free(port);

		c->outgoing->aip = c->outgoing->ai;
		c->outgoing->cfg = lookup_config_next(c->config_tree, c->outgoing->cfg);
	}

	if(!c->outgoing->aip) {
		if(c->outgoing->ai)
			freeaddrinfo(c->outgoing->ai);
		c->outgoing->ai = NULL;
		goto begin;
	}

	memcpy(&c->address, c->outgoing->aip->ai_addr, c->outgoing->aip->ai_addrlen);
	c->outgoing->aip = c->outgoing->aip->ai_next;

	if(c->hostname)
		free(c->hostname);

	c->hostname = sockaddr2hostname(&c->address);

	ifdebug(CONNECTIONS) logger(LOG_INFO, "Trying to connect to %s (%s)", c->name,
			   c->hostname);

	if(!proxytype) {
		c->socket = socket(c->address.sa.sa_family, SOCK_STREAM, IPPROTO_TCP);
	} else if(proxytype == PROXY_EXEC) {
		do_outgoing_pipe(c, proxyhost);
	} else {
		proxyai = str2addrinfo(proxyhost, proxyport, SOCK_STREAM);
		if(!proxyai)
			goto begin;
		ifdebug(CONNECTIONS) logger(LOG_INFO, "Using proxy at %s port %s", proxyhost, proxyport);
		c->socket = socket(proxyai->ai_family, SOCK_STREAM, IPPROTO_TCP);
	}

	if(c->socket == -1) {
		ifdebug(CONNECTIONS) logger(LOG_ERR, "Creating socket for %s failed: %s", c->hostname, sockstrerror(sockerrno));
		goto begin;
	}

	if(proxytype != PROXY_EXEC)
		configure_tcp(c);

#ifdef FD_CLOEXEC
	fcntl(c->socket, F_SETFD, FD_CLOEXEC);
#endif

	if(proxytype != PROXY_EXEC) {
#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, (void *)&option, sizeof option);
#endif

		bind_to_interface(c->socket);
	}

	/* Connect */

	if(!proxytype) {
		result = connect(c->socket, &c->address.sa, SALEN(c->address.sa));
	} else if(proxytype == PROXY_EXEC) {
		result = 0;
	} else {
		result = connect(c->socket, proxyai->ai_addr, proxyai->ai_addrlen);
		freeaddrinfo(proxyai);
	}

	if(result == -1) {
		if(sockinprogress(sockerrno)) {
			c->status.connecting = true;
			return;
		}

		closesocket(c->socket);

		ifdebug(CONNECTIONS) logger(LOG_ERR, "%s: %s", c->hostname, sockstrerror(sockerrno));

		goto begin;
	}

	finish_connecting(c);

	return;
}