/*-------------------------------------------------------------------------*\
* Binds an object to an address
\*-------------------------------------------------------------------------*/
static int meth_bind(lua_State *L)
{
p_tcp tcp = (p_tcp) auxiliar_checkclass(L, "tcp{master}", 1);
const char *address = luaL_checkstring(L, 2);
unsigned short port = (unsigned short) luaL_checknumber(L, 3);
const char *af_opts[] = {"AF_INET", "AF_INET6", "AF_UNSPEC"};
const char *def_af = "AF_UNSPEC";
const char *err;
short family;
switch(luaL_checkoption(L, 4, def_af, af_opts)) {
case 0 : family = AF_INET ; break;
case 1 : family = AF_INET6 ; break;
case 2 : family = AF_UNSPEC ; break;
default : family = AF_UNSPEC ; break;
}
err = inet_trybind(&tcp->sock, address, port, family);
if (err) {
lua_pushnil(L);
lua_pushstring(L, err);
return 2;
}
lua_pushnumber(L, 1);
return 1;
}
/*-------------------------------------------------------------------------*\
* Turns a master object into a server object
\*-------------------------------------------------------------------------*/
static int meth_setsockname(lua_State *L) {
p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{unconnected}", 1);
const char *address = luaL_checkstring(L, 2);
unsigned short port = (unsigned short) luaL_checknumber(L, 3);
const char *err = inet_trybind(&udp->sock, address, port);
if (err) {
lua_pushnil(L);
lua_pushstring(L, err);
return 2;
}
lua_pushnumber(L, 1);
return 1;
}
/*-------------------------------------------------------------------------*\
* Binds an object to an address
\*-------------------------------------------------------------------------*/
static int meth_bind(lua_State *L)
{
p_tcp tcp = (p_tcp) auxiliar_checkclass(L, "tcp{master}", 1);
const char *address = luaL_checkstring(L, 2);
unsigned short port = (unsigned short) luaL_checknumber(L, 3);
const char *err = inet_trybind(&tcp->sock, address, port);
if (err) {
lua_pushnil(L);
lua_pushstring(L, err);
return 2;
}
lua_pushnumber(L, 1);
return 1;
}
static int global_connect(lua_State *L) {
const char *remoteaddr = luaL_checkstring(L, 1);
const char *remoteserv = luaL_checkstring(L, 2);
const char *localaddr = luaL_optstring(L, 3, NULL);
const char *localserv = luaL_optstring(L, 4, "0");
int family = inet_optfamily(L, 5, "unspec");
p_tcp tcp = (p_tcp) lua_newuserdata(L, sizeof(t_tcp));
struct addrinfo bindhints, connecthints;
const char *err = NULL;
/* initialize tcp structure */
memset(tcp, 0, sizeof(t_tcp));
io_init(&tcp->io, (p_send) socket_send, (p_recv) socket_recv,
(p_error) socket_ioerror, &tcp->sock);
timeout_init(&tcp->tm, -1, -1);
buffer_init(&tcp->buf, &tcp->io, &tcp->tm);
tcp->sock = SOCKET_INVALID;
tcp->family = AF_UNSPEC;
/* allow user to pick local address and port */
memset(&bindhints, 0, sizeof(bindhints));
bindhints.ai_socktype = SOCK_STREAM;
bindhints.ai_family = family;
bindhints.ai_flags = AI_PASSIVE;
if (localaddr) {
err = inet_trybind(&tcp->sock, &tcp->family, localaddr,
localserv, &bindhints);
if (err) {
lua_pushnil(L);
lua_pushstring(L, err);
return 2;
}
}
/* try to connect to remote address and port */
memset(&connecthints, 0, sizeof(connecthints));
connecthints.ai_socktype = SOCK_STREAM;
/* make sure we try to connect only to the same family */
connecthints.ai_family = tcp->family;
err = inet_tryconnect(&tcp->sock, &tcp->family, remoteaddr, remoteserv,
&tcp->tm, &connecthints);
if (err) {
socket_destroy(&tcp->sock);
lua_pushnil(L);
lua_pushstring(L, err);
return 2;
}
auxiliar_setclass(L, "tcp{client}", -1);
return 1;
}
/*-------------------------------------------------------------------------*\
* Turns a master object into a server object
\*-------------------------------------------------------------------------*/
static int meth_setsockname(lua_State *L) {
p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{unconnected}", 1);
const char *address = luaL_checkstring(L, 2);
const char *port = luaL_checkstring(L, 3);
const char *err;
struct addrinfo bindhints;
memset(&bindhints, 0, sizeof(bindhints));
bindhints.ai_socktype = SOCK_DGRAM;
bindhints.ai_family = udp->family;
bindhints.ai_flags = AI_PASSIVE;
err = inet_trybind(&udp->sock, address, port, &bindhints);
if (err) {
lua_pushnil(L);
lua_pushstring(L, err);
return 2;
}
lua_pushnumber(L, 1);
return 1;
}
/*-------------------------------------------------------------------------*\
* Binds an object to an address
\*-------------------------------------------------------------------------*/
static int meth_bind(lua_State *L) {
p_tcp tcp = (p_tcp) auxiliar_checkclass(L, "tcp{master}", 1);
const char *address = luaL_checkstring(L, 2);
const char *port = luaL_checkstring(L, 3);
const char *err;
struct addrinfo bindhints;
memset(&bindhints, 0, sizeof(bindhints));
bindhints.ai_socktype = SOCK_STREAM;
bindhints.ai_family = tcp->family;
bindhints.ai_flags = AI_PASSIVE;
err = inet_trybind(&tcp->sock, &tcp->family, address, port, &bindhints);
if (err) {
lua_pushnil(L);
lua_pushstring(L, err);
return 2;
}
lua_pushnumber(L, 1);
return 1;
}
