/*
====================
NET_IP6Socket
====================
*/
SOCKET NET_IP6Socket( const char *net_interface, int port, struct sockaddr_in6 *bindto, int *err )
{
SOCKET newsocket;
struct sockaddr_in6 address;
u_long _true = 1;
qboolean brackets = net_interface && Q_CountChar( net_interface, ':' );
*err = 0;
// Print the name in brackets if there is a colon:
Com_Printf(_( "Opening IP6 socket: %s%s%s:%s\n"), brackets ? "[" : "", net_interface ? net_interface : "[::]", brackets ? "]" : "", port ? va( "%i", port ) : "*" );
if ( ( newsocket = socket( PF_INET6, SOCK_DGRAM, IPPROTO_UDP ) ) == INVALID_SOCKET )
{
*err = socketError;
Com_Printf( "WARNING: NET_IP6Socket: socket: %s\n", NET_ErrorString() );
return newsocket;
}
// make it non-blocking
if ( ioctlsocket( newsocket, FIONBIO, &_true ) == SOCKET_ERROR )
{
Com_Printf( "WARNING: NET_IP6Socket: ioctl FIONBIO: %s\n", NET_ErrorString() );
*err = socketError;
closesocket( newsocket );
return INVALID_SOCKET;
}
#ifdef IPV6_V6ONLY
{
int i = 1;
// IPv4 addresses should not be allowed to connect via this socket.
if ( setsockopt( newsocket, IPPROTO_IPV6, IPV6_V6ONLY, ( char * ) &i, sizeof( i ) ) == SOCKET_ERROR )
{
// win32 systems don't seem to support this anyways.
Com_DPrintf( "WARNING: NET_IP6Socket: setsockopt IPV6_V6ONLY: %s\n", NET_ErrorString() );
}
}
#endif
if ( !net_interface || !net_interface[ 0 ] )
{
address.sin6_family = AF_INET6;
address.sin6_addr = in6addr_any;
}
else
{
if ( !Sys_StringToSockaddr( net_interface, ( struct sockaddr * ) &address, sizeof( address ), AF_INET6 ) )
{
closesocket( newsocket );
return INVALID_SOCKET;
}
}
address.sin6_port = htons( ( short ) port );
if ( bind( newsocket, ( void * ) &address, sizeof( address ) ) == SOCKET_ERROR )
{
Com_Printf( "WARNING: NET_IP6Socket: bind: %s\n", NET_ErrorString() );
*err = socketError;
closesocket( newsocket );
return INVALID_SOCKET;
}
if ( bindto )
{
// random port? find what was chosen
if ( address.sin6_port == 0 )
{
struct sockaddr_in6 addr; // enough space
socklen_t addrlen = sizeof( addr );
if ( !getsockname( newsocket, (struct sockaddr *) &addr, &addrlen ) && addrlen )
{
address.sin6_port = addr.sin6_port;
}
}
*bindto = address;
}
return newsocket;
}
/*
====================
NET_IP6Socket
====================
*/
int NET_IP6Socket( char *net_interface, int port, struct sockaddr_in6 *bindto, int *err )
{
SOCKET newsocket;
struct sockaddr_in6 address;
u_long _true = 1;
*err = 0;
if ( net_interface )
{
// Print the name in brackets if there is a colon:
if ( Q_CountChar( net_interface, ':' ) )
{
Com_Printf(_( "Opening IP6 socket: [%s]:%i\n"), net_interface, port );
}
else
{
Com_Printf(_( "Opening IP6 socket: %s:%i\n"), net_interface, port );
}
}
else
{
Com_Printf(_( "Opening IP6 socket: [::]:%i\n"), port );
}
if ( ( newsocket = socket( PF_INET6, SOCK_DGRAM, IPPROTO_UDP ) ) == INVALID_SOCKET )
{
*err = socketError;
Com_Printf(_( "WARNING: NET_IP6Socket: socket: %s\n"), NET_ErrorString() );
return newsocket;
}
// make it non-blocking
if ( ioctlsocket( newsocket, FIONBIO, &_true ) == SOCKET_ERROR )
{
Com_Printf(_( "WARNING: NET_IP6Socket: ioctl FIONBIO: %s\n"), NET_ErrorString() );
*err = socketError;
closesocket( newsocket );
return INVALID_SOCKET;
}
#ifdef IPV6_V6ONLY
{
int i = 1;
// ipv4 addresses should not be allowed to connect via this socket.
if ( setsockopt( newsocket, IPPROTO_IPV6, IPV6_V6ONLY, ( char * ) &i, sizeof( i ) ) == SOCKET_ERROR )
{
// win32 systems don't seem to support this anyways.
Com_DPrintf( "WARNING: NET_IP6Socket: setsockopt IPV6_V6ONLY: %s\n", NET_ErrorString() );
}
}
#endif
if ( !net_interface || !net_interface[ 0 ] )
{
address.sin6_family = AF_INET6;
address.sin6_addr = in6addr_any;
}
else
{
if ( !Sys_StringToSockaddr( net_interface, ( struct sockaddr * ) &address, sizeof( address ), AF_INET6 ) )
{
closesocket( newsocket );
return INVALID_SOCKET;
}
}
if ( port == PORT_ANY )
{
address.sin6_port = 0;
}
else
{
address.sin6_port = htons( ( short ) port );
}
if ( bind( newsocket, ( void * ) &address, sizeof( address ) ) == SOCKET_ERROR )
{
Com_Printf(_( "WARNING: NET_IP6Socket: bind: %s\n"), NET_ErrorString() );
*err = socketError;
closesocket( newsocket );
return INVALID_SOCKET;
}
if ( bindto )
{
*bindto = address;
}
return newsocket;
}
/*
=============
NET_StringToAdr
Traps "localhost" for loopback, passes everything else to system
return 0 on address not found, 1 on address found with port, 2 on address found without port.
=============
*/
int NET_StringToAdr( const char *s, netadr_t *a, netadrtype_t family )
{
char base[ MAX_STRING_CHARS ], *search;
char *port = nullptr;
if ( !strcmp( s, "localhost" ) )
{
Com_Memset( a, 0, sizeof( *a ) );
a->type = NA_LOOPBACK;
// as NA_LOOPBACK doesn't require ports report port was given.
return 1;
}
Q_strncpyz( base, s, sizeof( base ) );
if ( *base == '[' || Q_CountChar( base, ':' ) > 1 )
{
// This is an IPv6 address, handle it specially.
search = strchr( base, ']' );
if ( search )
{
*search = '\0';
search++;
if ( *search == ':' )
{
port = search + 1;
}
}
if ( *base == '[' )
{
search = base + 1;
}
else
{
search = base;
}
}
else
{
// look for a port number
port = strchr( base, ':' );
if ( port )
{
*port = '\0';
port++;
}
search = base;
}
if ( !Sys_StringToAdr( search, a, family ) )
{
a->type = NA_BAD;
return 0;
}
if ( port )
{
a->port = BigShort( ( short ) atoi( port ) );
return 1;
}
else
{
a->port = BigShort( PORT_SERVER );
return 2;
}
}