diff --git a/src/options.c b/src/options.c index 657947c6..38567972 100644 --- a/src/options.c +++ b/src/options.c @@ -54,6 +54,33 @@ int opt_meth_getoption(lua_State *L, p_opt opt, p_socket ps) return opt->func(L, ps); } +/*------------------------------------------------------*/ +/* binds socket to network interface */ +int opt_set_bindtodevice(lua_State *L, p_socket ps) +{ +#ifdef __APPLE__ + return luaL_error(L, "SO_BINDTODEVICE is not supported on this operating system"); +#else + const char *dev = luaL_checkstring(L, 3); + return opt_set(L, ps, SOL_SOCKET, SO_BINDTODEVICE, (char*)dev, strlen(dev)+1); +#endif +} + +int opt_get_bindtodevice(lua_State *L, p_socket ps) +{ +#ifdef __APPLE__ + return luaL_error(L, "SO_BINDTODEVICE is not supported on this operating system"); +#else + char dev[IFNAMSIZ]; + int len = sizeof(dev); + int err = opt_get(L, ps, SOL_SOCKET, SO_BINDTODEVICE, &dev, &len); + if (err) + return err; + lua_pushstring(L, dev); + return 1; +#endif +} + /*------------------------------------------------------*/ /* enables reuse of local address */ int opt_set_reuseaddr(lua_State *L, p_socket ps) diff --git a/src/options.h b/src/options.h index 456eeb5f..26d6f025 100644 --- a/src/options.h +++ b/src/options.h @@ -53,6 +53,9 @@ int opt_get_tcp_keepintvl(lua_State *L, p_socket ps); int opt_set_tcp_defer_accept(lua_State *L, p_socket ps); #endif +int opt_set_bindtodevice(lua_State *L, p_socket ps); +int opt_get_bindtodevice(lua_State *L, p_socket ps); + int opt_set_keepalive(lua_State *L, p_socket ps); int opt_get_keepalive(lua_State *L, p_socket ps); diff --git a/src/tcp.c b/src/tcp.c index e84db845..f0012064 100644 --- a/src/tcp.c +++ b/src/tcp.c @@ -71,6 +71,7 @@ static luaL_Reg tcp_methods[] = { /* socket option handlers */ static t_opt optget[] = { + {"bindtodevice", opt_get_bindtodevice}, {"keepalive", opt_get_keepalive}, {"reuseaddr", opt_get_reuseaddr}, {"reuseport", opt_get_reuseport}, @@ -92,6 +93,7 @@ static t_opt optget[] = { }; static t_opt optset[] = { + {"bindtodevice", opt_set_bindtodevice}, {"keepalive", opt_set_keepalive}, {"reuseaddr", opt_set_reuseaddr}, {"reuseport", opt_set_reuseport},