int
WINS_OpenSocket(int port)
{
int newsocket;
struct sockaddr_in address;
u_long _true = 1;
if ((newsocket = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
return -1;
if (ioctlsocket(newsocket, FIONBIO, &_true) == -1)
goto ErrorReturn;
address.sin_family = AF_INET;
if (bindAddr.s_addr != INADDR_NONE)
address.sin_addr.s_addr = bindAddr.s_addr;
else
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons((unsigned short)port);
if (bind(newsocket, (struct sockaddr *)&address, sizeof(address)) == 0)
return newsocket;
if (tcpipAvailable)
Sys_Error("Unable to bind to %s",
WINS_AddrToString((struct qsockaddr *)&address));
else /* we are still in init phase, no need to error */
Con_Printf("Unable to bind to %s\n",
WINS_AddrToString((struct qsockaddr *)&address));
ErrorReturn:
closesocket(newsocket);
return -1;
}
int WINS_OpenSocket(int port)
{
int newsocket;
struct sockaddr_in address;
u_long _true = 1;
if ((newsocket = psocket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) {
return -1;
}
if (pioctlsocket(newsocket, FIONBIO, &_true) == -1) {
goto ErrorReturn;
}
address.sin_family = AF_INET;
address.sin_addr.s_addr = myAddr;
address.sin_port = htons((unsigned short)port);
if (bind(newsocket, (void *)&address, sizeof(address)) == 0) {
return newsocket;
}
Sys_Error("Unable to bind to %s", WINS_AddrToString((struct qsockaddr *)&address));
ErrorReturn:
pclosesocket(newsocket);
return -1;
}
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
socket_t *Net_ListenSocket(int port)
{
int newsock;
socket_t *sock;
newsock = WINS_OpenReliableSocket(port);
if (newsock == -1) return NULL;
if (WINS_Listen(newsock) == -1)
{
WINS_CloseSocket(newsock);
return NULL;
} //end if
sock = Net_AllocSocket();
if (sock == NULL)
{
WINS_CloseSocket(newsock);
return NULL;
} //end if
sock->socket = newsock;
WINS_GetSocketAddr(newsock, &sock->addr);
WinPrint("listen socket opened at %s\n", WINS_AddrToString(&sock->addr));
//
return sock;
} //end of the function Net_ListenSocket
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void Net_SetAddressPort( address_t *address, int port ){
sockaddr_t addr;
WINS_StringToAddr( address->ip, &addr );
WINS_SetSocketPort( &addr, port );
strcpy( address->ip, WINS_AddrToString( &addr ) );
} //end of the function Net_SetAddressPort
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_GetNameFromAddr( struct sockaddr_s *addr, char *name ){
struct hostent *hostentry;
hostentry = gethostbyaddr( (char *)&( (struct sockaddr_in *)addr )->sin_addr, sizeof( struct in_addr ), AF_INET );
if ( hostentry ) {
strncpy( name, (char *)hostentry->h_name, NET_NAMELEN - 1 );
return 0;
}
strcpy( name, WINS_AddrToString( addr ) );
return 0;
} //end of the function WINS_GetNameFromAddr
int WINS_GetNameFromAddr (struct qsockaddr *addr, char *name)
{
#ifdef ID_PC
struct hostent *hostentry;
hostentry = pgethostbyaddr ((char *)&((struct sockaddr_in *)addr)->sin_addr, sizeof(struct in_addr), AF_INET);
if (hostentry)
{
Q_strncpy (name, (char *)hostentry->h_name, NET_NAMELEN - 1);
return 0;
}
Q_strcpy (name, WINS_AddrToString (addr));
#endif
return 0;
}
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_Init( void ){
int i;
struct hostent *local;
char buff[MAXHOSTNAMELEN];
struct sockaddr_s addr;
char *p;
/*
linux doesn't have anything to initialize for the net
"Windows .. built for the internet .. the internet .. built with unix"
*/
#if 0
WORD wVersionRequested;
wVersionRequested = MAKEWORD( 2, 2 );
r = WSAStartup( wVersionRequested, &winsockdata );
if ( r ) {
WinPrint( "Winsock initialization failed.\n" );
return -1;
}
#endif
/*
i = COM_CheckParm ("-udpport");
if (i == 0)*/
net_hostport = DEFAULTnet_hostport;
/*
else if (i < com_argc-1)
net_hostport = Q_atoi (com_argv[i+1]);
else
Sys_Error ("WINS_Init: you must specify a number after -udpport");
*/
// determine my name & address
gethostname( buff, MAXHOSTNAMELEN );
local = gethostbyname( buff );
if(local && local->h_addr_list && local->h_addr_list[0])
myAddr = *(int *)local->h_addr_list[0];
else
myAddr = inet_addr("127.0.0.1");
// if the quake hostname isn't set, set it to the machine name
// if (Q_strcmp(hostname.string, "UNNAMED") == 0)
{
// see if it's a text IP address (well, close enough)
for ( p = buff; *p; p++ )
if ( ( *p < '0' || *p > '9' ) && *p != '.' ) {
break;
}
// if it is a real name, strip off the domain; we only want the host
if ( *p ) {
for ( i = 0; i < 15; i++ )
if ( buff[i] == '.' ) {
break;
}
buff[i] = 0;
}
// Cvar_Set ("hostname", buff);
}
//++timo WTF is that net_controlsocket? it's sole purpose is to retrieve the local IP?
if ( ( net_controlsocket = WINS_OpenSocket( 0 ) ) == SOCKET_ERROR ) {
WinError( "WINS_Init: Unable to open control socket\n" );
}
( (struct sockaddr_in *)&broadcastaddr )->sin_family = AF_INET;
( (struct sockaddr_in *)&broadcastaddr )->sin_addr.s_addr = INADDR_BROADCAST;
( (struct sockaddr_in *)&broadcastaddr )->sin_port = htons( (u_short)net_hostport );
WINS_GetSocketAddr( net_controlsocket, &addr );
strcpy( my_tcpip_address, WINS_AddrToString( &addr ) );
p = strrchr( my_tcpip_address, ':' );
if ( p ) {
*p = 0;
}
WinPrint( "Winsock Initialized\n" );
return net_controlsocket;
} //end of the function WINS_Init
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void Net_SocketToAddress(socket_t *sock, address_t *address)
{
strcpy(address->ip, WINS_AddrToString(&sock->addr));
} //end of the function Net_SocketToAddress
int
WINS_Init(void)
{
int i;
int err;
char buff[MAXHOSTNAMELEN];
char *colon;
struct hostent *local;
struct qsockaddr addr;
if (COM_CheckParm("-noudp"))
return -1;
if (!winsock_initialized) {
err = WSAStartup(MAKEWORD(1,1), &winsockdata);
if (err) {
Con_SafePrintf("Winsock initialization failed.\n");
return -1;
}
}
winsock_initialized++;
/* determine my name & address */
myAddr.s_addr = htonl(INADDR_LOOPBACK);
err = gethostname(buff, MAXHOSTNAMELEN);
if (err) {
Con_Printf("%s: WARNING: gethostname failed.\n", __func__);
} else {
buff[MAXHOSTNAMELEN - 1] = 0;
blocktime = Sys_DoubleTime();
WSASetBlockingHook(BlockingHook);
local = gethostbyname(buff);
WSAUnhookBlockingHook();
if (!local) {
Con_Printf("%s: WARNING: gethostbyname timed out.\n", __func__);
} else if (local->h_addrtype != AF_INET) {
Con_Printf("%s: address from gethostbyname not IPv4\n", __func__);
} else {
myAddr = *(struct in_addr *)local->h_addr_list[0];
}
}
Con_Printf ("UDP, Local address: %s\n", inet_ntoa(myAddr));
i = COM_CheckParm("-ip");
if (i && i < com_argc - 1) {
bindAddr.s_addr = inet_addr(com_argv[i + 1]);
if (bindAddr.s_addr == INADDR_NONE)
Sys_Error("%s: %s is not a valid IP address", __func__,
com_argv[i + 1]);
Con_Printf("Binding to IP Interface Address of %s\n", com_argv[i + 1]);
} else {
bindAddr.s_addr = INADDR_NONE;
}
i = COM_CheckParm("-localip");
if (i && i < com_argc - 1) {
localAddr.s_addr = inet_addr(com_argv[i + 1]);
if (localAddr.s_addr == INADDR_NONE)
Sys_Error("%s: %s is not a valid IP address", __func__,
com_argv[i + 1]);
Con_Printf("Advertising %s as the local IP in response packets\n",
com_argv[i + 1]);
} else {
localAddr.s_addr = INADDR_NONE;
}
net_controlsocket = WINS_OpenSocket(0);
if (net_controlsocket == -1) {
Con_Printf("%s: Unable to open control socket\n", __func__);
if (--winsock_initialized == 0)
WSACleanup();
return -1;
}
broadcastaddr.sin_family = AF_INET;
broadcastaddr.sin_addr.s_addr = INADDR_BROADCAST;
broadcastaddr.sin_port = htons((unsigned short)net_hostport);
WINS_GetSocketAddr(net_controlsocket, &addr);
strcpy(my_tcpip_address, WINS_AddrToString(&addr));
colon = strrchr(my_tcpip_address, ':');
if (colon)
*colon = 0;
Con_Printf("Winsock TCP/IP Initialized (%s)\n", my_tcpip_address);
tcpipAvailable = true;
return net_controlsocket;
}
int WINS_Init (void)
{
int i;
struct hostent *local = NULL;
char buff[MAXHOSTNAMELEN];
struct qsockaddr addr;
char *p;
int r;
WORD wVersionRequested;
// initialize the Winsock function vectors (we do this instead of statically linking
// so we can run on Win 3.1, where there isn't necessarily Winsock)
hInst = LoadLibrary("wsock32.dll");
if (hInst == NULL)
{
Con_SafePrintf ("Failed to load winsock.dll\n");
winsock_lib_initialized = false;
return -1;
}
winsock_lib_initialized = true;
pWSAStartup = (void *)GetProcAddress(hInst, "WSAStartup");
pWSACleanup = (void *)GetProcAddress(hInst, "WSACleanup");
pWSAGetLastError = (void *)GetProcAddress(hInst, "WSAGetLastError");
psocket = (void *)GetProcAddress(hInst, "socket");
pioctlsocket = (void *)GetProcAddress(hInst, "ioctlsocket");
psetsockopt = (void *)GetProcAddress(hInst, "setsockopt");
precvfrom = (void *)GetProcAddress(hInst, "recvfrom");
psendto = (void *)GetProcAddress(hInst, "sendto");
pclosesocket = (void *)GetProcAddress(hInst, "closesocket");
pgethostname = (void *)GetProcAddress(hInst, "gethostname");
pgethostbyname = (void *)GetProcAddress(hInst, "gethostbyname");
pgethostbyaddr = (void *)GetProcAddress(hInst, "gethostbyaddr");
pgetsockname = (void *)GetProcAddress(hInst, "getsockname");
if (!pWSAStartup || !pWSACleanup || !pWSAGetLastError ||
!psocket || !pioctlsocket || !psetsockopt ||
!precvfrom || !psendto || !pclosesocket ||
!pgethostname || !pgethostbyname || !pgethostbyaddr ||
!pgetsockname)
{
Con_SafePrintf ("Couldn't GetProcAddress from winsock.dll\n");
return -1;
}
if (COM_CheckParm ("-noudp"))
return -1;
if (winsock_initialized == 0)
{
wVersionRequested = MAKEWORD(1, 1);
r = pWSAStartup (MAKEWORD(1, 1), &winsockdata);
if (r)
{
Con_SafePrintf ("Winsock initialization failed.\n");
return -1;
}
}
winsock_initialized++;
// determine my name & address
if (pgethostname(buff, MAXHOSTNAMELEN) == 0)
{
blocktime = Sys_FloatTime();
WSASetBlockingHook(BlockingHook);
local = pgethostbyname(buff);
WSAUnhookBlockingHook();
if (local == NULL)
{
Con_DPrintf ("Winsock TCP/IP Initialization timed out.\n");
if (--winsock_initialized == 0)
pWSACleanup ();
return -1;
}
}
if (local)
{
myAddr = *(int *)local->h_addr_list[0];
// if the quake hostname isn't set, set it to the machine name
if (strcmp(hostname.string, "UNNAMED") == 0)
{
// see if it's a text IP address (well, close enough)
for (p = buff; *p; p++)
if ((*p < '0' || *p > '9') && *p != '.')
break;
// if it is a real name, strip off the domain; we only want the host
if (*p)
{
for (i = 0; i < 15; i++)
if (buff[i] == '.')
break;
buff[i] = 0;
}
Cvar_Set ("hostname", buff);
}
}
if ((net_controlsocket = WINS_OpenSocket (0)) == -1)
{
Con_Printf("WINS_Init: Unable to open control socket\n");
if (--winsock_initialized == 0)
pWSACleanup ();
return -1;
}
((struct sockaddr_in *)&broadcastaddr)->sin_family = AF_INET;
((struct sockaddr_in *)&broadcastaddr)->sin_addr.s_addr = INADDR_BROADCAST;
((struct sockaddr_in *)&broadcastaddr)->sin_port = htons((unsigned short)net_hostport);
WINS_GetSocketAddr (net_controlsocket, &addr);
strcpy(my_tcpip_address, WINS_AddrToString (&addr));
p = strrchr (my_tcpip_address, ':');
if (p)
*p = 0;
Con_Printf("Winsock TCP/IP Initialized\n");
tcpipAvailable = true;
return net_controlsocket;
}