int listeners_Create(int port, int ssl, void* userdata) {
// startup socket system
if (!so_Startup()) {
return 0;
}
// check if a server is already using this port:
if (listeners_GetByPort(port, NULL)) {
#ifdef CONNECTIONSDEBUG
printinfo("[connections-server] port %d already used");
#endif
return 0;
}
// allocate struct:
struct listener* l = malloc(sizeof(*l));
if (!l) {
#ifdef CONNECTIONSDEBUG
printinfo("[connections-server] malloc failed");
#endif
return 0;
}
// initialise struct:
memset(l, 0, sizeof(*l));
l->socket = so_CreateSocket(1, IPTYPE_IPV6);
l->port = port;
l->ssl = ssl;
l->userdata = userdata;
if (l->socket < 0) {
#ifdef CONNECTIONSDEBUG
printinfo("[connections-server] so_CreateSocket() failed");
#endif
free(l);
return 0;
}
if (!so_MakeSocketListen(l->socket, port, IPTYPE_IPV6, "any")) {
#ifdef CONNECTIONSDEBUG
printinfo("[connections-server] so_MakeSocketListen() failed");
#endif
so_CloseSocket(l->socket);
free(l);
return 0;
}
l->next = listeners;
listeners = l;
#ifdef CONNECTIONSDEBUG
printinfo("[connections-server] new server at port %d (%d)", l->port, l->socket);
#endif
return 1;
}
// Set a new socket to the given connection
static int connections_SetSocket(struct connection* c, int iptype) {
// close old socket
if (c->socket >= 0) {
so_CloseSSLSocket(c->socket, &c->sslptr);
}
// create socket
if (iptype == IPTYPE_IPV4) {
c->socket = so_CreateSocket(1, IPTYPE_IPV4);
c->iptype = IPTYPE_IPV4;
} else {
c->socket = so_CreateSocket(1, IPTYPE_IPV6);
c->iptype = IPTYPE_IPV6;
}
// check if socket is there
if (c->socket < 0) {
return 0;
}
// set a low delay option if desired
if (c->lowdelay) {
int flag = 1;
setsockopt(c->socket, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(int));
}
return 1;
}
