Added ClientInterface configuration option to make BitlBee bind() to a

specific interface before connecting to a remote host.

5 files changed, 31 insertions, 7 deletions

diff --git a/bitlbee.c b/bitlbee.c
index 230b8ce8..17431546 100644
--- a/bitlbee.c
+++ b/bitlbee.c
@@ -53,11 +53,11 @@ int bitlbee_daemon_init()
 #endif
 	;
 
-	i = getaddrinfo( global.conf->iface, global.conf->port, &hints, &addrinfo_bind );
+	i = getaddrinfo( global.conf->iface_in, global.conf->port, &hints, &addrinfo_bind );
 	if( i )
 	{
 		log_message( LOGLVL_ERROR, "Couldn't parse address `%s': %s",
-		                           global.conf->iface, gai_strerror(i) );
+		                           global.conf->iface_in, gai_strerror(i) );
 		return -1;
 	}
 
diff --git a/bitlbee.conf b/bitlbee.conf
index 99e8106d..c03a564f 100644
--- a/bitlbee.conf
+++ b/bitlbee.conf
@@ -34,6 +34,13 @@
 # DaemonInterface = 0.0.0.0
 # DaemonPort = 6667
 
+## ClientInterface:
+##
+## If for any reason, you want BitlBee to use a specific address/interface
+## for outgoing traffic (IM connections, HTTP(S), etc.), set it here.
+##
+# ClientInterface = 0.0.0.0
+
 ## AuthMode
 ##
 ##  Open -- Accept connections from anyone, use NickServ for user authentication.
diff --git a/conf.c b/conf.c
index 339af618..8d6291ff 100644
--- a/conf.c
+++ b/conf.c
@@ -44,7 +44,8 @@ conf_t *conf_load( int argc, char *argv[] )
 	
 	conf = g_new0( conf_t, 1 );
 	
-	conf->iface = NULL;
+	conf->iface_in = NULL;
+	conf->iface_out = NULL;
 	conf->port = g_strdup( "6667" );
 	conf->nofork = 0;
 	conf->verbose = 0;
@@ -81,7 +82,7 @@ conf_t *conf_load( int argc, char *argv[] )
 	{
 		if( opt == 'i' )
 		{
-			conf->iface = g_strdup( optarg );
+			conf->iface_in = g_strdup( optarg );
 		}
 		else if( opt == 'p' )
 		{
@@ -201,14 +202,19 @@ static int conf_loadini( conf_t *conf, char *file )
 			}
 			else if( g_strcasecmp( ini->key, "daemoninterface" ) == 0 )
 			{
-				g_free( conf->iface );
-				conf->iface = g_strdup( ini->value );
+				g_free( conf->iface_in );
+				conf->iface_in = g_strdup( ini->value );
 			}
 			else if( g_strcasecmp( ini->key, "daemonport" ) == 0 )
 			{
 				g_free( conf->port );
 				conf->port = g_strdup( ini->value );
 			}
+			else if( g_strcasecmp( ini->key, "clientinterface" ) == 0 )
+			{
+				g_free( conf->iface_out );
+				conf->iface_out = g_strdup( ini->value );
+			}
 			else if( g_strcasecmp( ini->key, "authmode" ) == 0 )
 			{
 				if( g_strcasecmp( ini->value, "registered" ) == 0 )
diff --git a/conf.h b/conf.h
index d21ec577..c41fd096 100644
--- a/conf.h
+++ b/conf.h
@@ -31,7 +31,7 @@ typedef enum authmode { AUTHMODE_OPEN, AUTHMODE_CLOSED, AUTHMODE_REGISTERED } au
 
 typedef struct conf
 {
-	char *iface;
+	char *iface_in, *iface_out;
 	char *port;
 	int nofork;
 	int verbose;
diff --git a/lib/proxy.c b/lib/proxy.c
index 53b89d64..91493557 100644
--- a/lib/proxy.c
+++ b/lib/proxy.c
@@ -113,6 +113,7 @@ static gboolean gaim_io_connected(gpointer data, gint source, b_input_condition
 static int proxy_connect_none(const char *host, unsigned short port, struct PHB *phb)
 {
 	struct sockaddr_in *sin;
+	struct sockaddr_in me;
 	int fd = -1;
 
 	if (!(sin = gaim_gethostbyname(host, port))) {
@@ -127,6 +128,16 @@ static int proxy_connect_none(const char *host, unsigned short port, struct PHB
 
 	sock_make_nonblocking(fd);
 	
+	if( global.conf->iface_out )
+	{
+		me.sin_family = AF_INET;
+		me.sin_port = 0;
+		me.sin_addr.s_addr = inet_addr( global.conf->iface_out );
+		
+		if( bind( fd, (struct sockaddr *) &me, sizeof( me ) ) != 0 )
+			event_debug( "bind( %d, \"%s\" ) failure\n", fd, global.conf->iface_out );
+	}
+	
 	event_debug("proxy_connect_none( \"%s\", %d ) = %d\n", host, port, fd);
 	
 	if (connect(fd, (struct sockaddr *)sin, sizeof(*sin)) < 0 && !sockerr_again()) {