SOCKET Net_TCPListenPort(int port)
{
SOCKET sock = INVALID_SOCKET;
qbool error = true;
struct sockaddr_in address = {0};
unsigned long nonblocking = true;
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons((u_short)port);
if ((sock = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET)
{
// error.
}
else if (ioctlsocket (sock, FIONBIO, &nonblocking) == -1)
{
// error.
}
else if (bind (sock, (void *)&address, sizeof(address)) == -1)
{
// error.
}
else if (listen(sock, 3) == -1) // Don't listen for too many clients.
{
// error.
}
else if (!TCP_Set_KEEPALIVE(sock))
{
// error.
}
else
{
// success.
error = false;
}
// clean up in casse of error.
if (error)
{
if (sock != INVALID_SOCKET)
{
closesocket(sock);
sock = INVALID_SOCKET;
}
}
return sock;
}
int TCP_OpenListenSocket (unsigned short int port)
{
int newsocket;
struct sockaddr_in address = { 0 };
unsigned long nonblocking = true;
int i;
if ((newsocket = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET) {
Con_Printf ("TCP_OpenListenSocket: socket: (%i): %s\n", qerrno, strerror(qerrno));
return INVALID_SOCKET;
}
#ifndef _WIN32
if ((fcntl (newsocket, F_SETFL, O_NONBLOCK)) == -1) { // O'Rly?! @@@
Con_Printf ("TCP_OpenListenSocket: fcntl: (%i): %s\n", qerrno, strerror(qerrno));
closesocket(newsocket);
return INVALID_SOCKET;
}
#endif
if (ioctlsocket (newsocket, FIONBIO, &nonblocking) == -1) { // make asynchronous
Con_Printf ("TCP_OpenListenSocket: ioctl: (%i): %s\n", qerrno, strerror(qerrno));
closesocket(newsocket);
return INVALID_SOCKET;
}
#ifdef __APPLE__
address.sin_len = sizeof(address); // apple are special...
#endif
address.sin_family = AF_INET;
// check for interface binding option
if ((i = COM_CheckParm("-ip")) != 0 && i < COM_Argc()) {
address.sin_addr.s_addr = inet_addr(COM_Argv(i+1));
Con_DPrintf ("Binding to IP Interface Address of %s\n", inet_ntoa(address.sin_addr));
}
else {
address.sin_addr.s_addr = INADDR_ANY;
}
if (port == PORT_ANY) {
address.sin_port = 0;
}
else {
address.sin_port = htons(port);
}
if (bind (newsocket, (void *)&address, sizeof(address)) == -1) {
Con_Printf ("TCP_OpenListenSocket: bind: (%i): %s\n", qerrno, strerror(qerrno));
closesocket(newsocket);
return INVALID_SOCKET;
}
if (listen (newsocket, TCP_LISTEN_BACKLOG) == INVALID_SOCKET) {
Con_Printf ("TCP_OpenListenSocket: listen: (%i): %s\n", qerrno, strerror(qerrno));
closesocket(newsocket);
return INVALID_SOCKET;
}
if (!TCP_Set_KEEPALIVE(newsocket)) {
Con_Printf ("TCP_OpenListenSocket: TCP_Set_KEEPALIVE: failed\n");
closesocket(newsocket);
return INVALID_SOCKET;
}
return newsocket;
}