net.h

Go to the documentation of this file.

#ifndef LL_NET_H                                        
#define LL_NET_H

class LLTimer;
class LLHost;

#define NET_BUFFER_SIZE (0x2000)

// Request a free local port from the operating system
#define NET_USE_OS_ASSIGNED_PORT 0

// Returns 0 on success, non-zero on error.
// Sets socket handler/descriptor, changes nPort if port requested is unavailable.
S32             start_net(S32& socket_out, int& nPort);                                                         
void    end_net(S32& socket_out);

// returns size of packet or -1 in case of error
S32             receive_packet(int hSocket, char * receiveBuffer);

BOOL    send_packet(int hSocket, const char *sendBuffer, int size, U32 recipient, int nPort);   // Returns TRUE on success.

//void  get_sender(char * tmp);
LLHost  get_sender();
U32             get_sender_port();
U32             get_sender_ip(void);

const char*     u32_to_ip_string(U32 ip);                                       // Returns pointer to internal string buffer, "(bad IP addr)" on failure, cannot nest calls 
char*           u32_to_ip_string(U32 ip, char *ip_string);      // NULL on failure, ip_string on success, you must allocate at least MAXADDRSTR chars
U32                     ip_string_to_u32(const char* ip_string);        // Wrapper for inet_addr()

extern const char* LOOPBACK_ADDRESS_STRING;


// useful MTU consts

const S32       MTUBYTES = 1200;        // 1500 = standard Ethernet MTU
const S32       ETHERNET_MTU_BYTES = 1500;
const S32       MTUBITS = MTUBYTES*8;
const S32       MTUU32S = MTUBITS/32;


#endif

---