ref: e65eec36dd5aa7223691f9557e8236ee78fbd1a9
dir: /net.h/
typedef struct Addr Addr;
struct Addr{
int fd;
char ip[46];
char srv[8];
char sys[52];
};
extern Addr myip;
extern char *netmtpt;
enum{
NET_NAMELEN = 64,
NET_MAXMESSAGE = 65000,
NET_HEADERSIZE = 4 + 4,
NET_DATAGRAMSIZE = MAX_DATAGRAM + NET_HEADERSIZE,
/* netheader flags */
NFMASK = 0xffff,
NFDAT = 1<<16,
NFACK = 1<<17,
NFNAK = 1<<18,
NFEOM = 1<<19,
NFUNREL = 1<<20,
NFCTL = 1<<31,
/* network info/connection protocol: used to find servers, get info
* about them and connect to them. once connected, the game protocol is
* used instead.
* game[s]: always "QUAKE" for qk1. was supposed to allow this protocol
* to be used in other games (hint: it never was)
* v[1]: NETVERSION
* addresses have two forms: "addr:port" and "port". the longer form is
* used to return the address of a server which is not running locally.
* the short form uses the address from which the request was made.
*/
NETVERSION = 3,
CQCONNECT = 1, /* game[s] v[1] */
CQSVINFO = 2, /* game[s] v[1] */
CQPLINFO = 3, /* plnum[1] */
CQRUINFO = 4, /* rule[s] */
CPACCEPT = 1<<7 | 1, /* port[4] */
CPREJECT = 1<<7 | 2, /* reason[s] */
CPSVINFO = 1<<7 | 3,
/* addr[s] host[s] map[s] curpl[1] maxpl[1] v[1] */
CPPLINFO = 1<<7 | 4,
/* plnum[1] name[s] colors[4] frags[4] contime[4] addr[s] */
CPRUINFO = 1<<7 | 5, /* rule[s] val[s] */
MAX_NET_DRIVERS = 8,
};
typedef struct qsocket_s
{
struct qsocket_s *next;
double connecttime;
double lastMessageTime;
double lastSendTime;
bool disconnected;
bool canSend;
bool sendNext;
bool local;
int driver;
int landriver;
int socket;
void *driverdata;
unsigned int ackSequence;
unsigned int sendSequence;
unsigned int unreliableSendSequence;
int sendMessageLength;
byte sendMessage [NET_MAXMESSAGE];
unsigned int receiveSequence;
unsigned int unreliableReceiveSequence;
int receiveMessageLength;
byte receiveMessage [NET_MAXMESSAGE];
Addr addr;
int uready;
char address[NET_NAMELEN];
} qsocket_t;
extern qsocket_t *net_activeSockets;
extern qsocket_t *net_freeSockets;
typedef struct Landrv Landrv;
typedef struct Netdrv Netdrv;
struct Landrv{
char *name;
bool initialized;
int (*Init)(void);
void (*Shutdown)(void);
int (*Connect)(Addr *);
int (*Read)(uchar *, int, Addr *);
int (*Write)(uchar *, int, Addr *);
char* (*AddrToString)(Addr *);
int (*getip)(char *, Addr *);
int (*AddrCompare)(Addr *, Addr *);
ushort (*GetSocketPort)(Addr *);
void (*SetSocketPort)(Addr *, ushort);
};
extern int net_numlandrivers;
extern Landrv landrv[MAX_NET_DRIVERS];
struct Netdrv{
char *name;
bool initialized;
int (*Init)(void);
qsocket_t* (*Connect)(char *);
qsocket_t* (*CheckNewConnections)(void);
int (*QGetMessage)(qsocket_t *);
int (*QSendMessage)(qsocket_t *, sizebuf_t *);
int (*SendUnreliableMessage)(qsocket_t *, sizebuf_t *);
bool (*CanSendMessage)(qsocket_t *);
bool (*CanSendUnreliableMessage)(qsocket_t *);
void (*Close)(qsocket_t *);
void (*Shutdown)(void);
};
extern int net_driverlevel;
extern cvar_t hostname;
extern char playername[];
extern int playercolor;
extern int messagesSent;
extern int messagesReceived;
extern int unreliableMessagesSent;
extern int unreliableMessagesReceived;
qsocket_t *NET_NewQSocket (void);
void NET_FreeQSocket(qsocket_t *);
double SetNetTime(void);
//============================================================================
//
// public network functions
//
//============================================================================
extern double net_time;
extern sizebuf_t net_message;
extern int net_activeconnections;
void NET_Init (void);
void NET_Shutdown (void);
struct qsocket_s *NET_CheckNewConnections (void);
// returns a new connection number if there is one pending, else -1
struct qsocket_s *NET_Connect (char *host);
// called by client to connect to a host. Returns -1 if not able to
bool NET_CanSendMessage (qsocket_t *sock);
// Returns true or false if the given qsocket can currently accept a
// message to be transmitted.
int NET_GetMessage (struct qsocket_s *sock);
// returns data in net_message sizebuf
// returns 0 if no data is waiting
// returns 1 if a message was received
// returns 2 if an unreliable message was received
// returns -1 if the connection died
int NET_SendMessage (struct qsocket_s *sock, sizebuf_t *data);
int NET_SendUnreliableMessage (struct qsocket_s *sock, sizebuf_t *data);
// returns 0 if the message connot be delivered reliably, but the connection
// is still considered valid
// returns 1 if the message was sent properly
// returns -1 if the connection died
int NET_SendToAll(sizebuf_t *data, int blocktime);
// This is a reliable *blocking* send to all attached clients.
void NET_Close (struct qsocket_s *sock);
// if a dead connection is returned by a get or send function, this function
// should be called when it is convenient
// Server calls when a client is kicked off for a game related misbehavior
// like an illegal protocal conversation. Client calls when disconnecting
// from a server.
// A netcon_t number will not be reused until this function is called for it
int Datagram_Init (void);
void Datagram_Listen (bool state);
qsocket_t *Datagram_Connect (char *host);
qsocket_t *Datagram_CheckNewConnections (void);
int Datagram_GetMessage (qsocket_t *sock);
int Datagram_SendMessage (qsocket_t *sock, sizebuf_t *data);
int Datagram_SendUnreliableMessage (qsocket_t *sock, sizebuf_t *data);
bool Datagram_CanSendMessage (qsocket_t *sock);
bool Datagram_CanSendUnreliableMessage (qsocket_t *sock);
void Datagram_Close(qsocket_t *);
void Datagram_Shutdown (void);
int Loop_Init (void);
qsocket_t *Loop_Connect (char *host);
qsocket_t *Loop_CheckNewConnections (void);
int Loop_GetMessage (qsocket_t *sock);
int Loop_SendMessage (qsocket_t *sock, sizebuf_t *data);
int Loop_SendUnreliableMessage (qsocket_t *sock, sizebuf_t *data);
bool Loop_CanSendMessage (qsocket_t *sock);
bool Loop_CanSendUnreliableMessage (qsocket_t *sock);
void Loop_Close (qsocket_t *sock);
void Loop_Shutdown (void);
int UDP_Init(void);
void UDP_Shutdown(void);
void UDP_Listen(bool);
int UDP_Connect(Addr *);
int udpread(uchar *, int, Addr *);
int udpwrite(uchar *, int, Addr *);
void udpinfo(Addr*);
int getnewcon(Addr*);
char* UDP_AddrToString(Addr *);
int getip(char *, Addr *);
int UDP_AddrCompare(Addr *, Addr *);
ushort UDP_GetSocketPort(Addr *);
void UDP_SetSocketPort(Addr *, ushort);