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#ifndef __SOCKET_H

#define __SOCKET_H

#include 

// Socket Types

#define SOCK_STREAM 1

#define SOCK_DGRAM 2

#define SOCK_RAW 3

// IP protocols

#define IPPROTO_IP 0

#define IPPROTO_ICMP 1

#define IPPROTO_TCP 6

#define IPPROTO_UDP 17

#define IPPROTO_RAW 255

// IP options

#define IP_TTL 2

// Address families

#define AF_UNSPEC 0

#define AF_LOCAL 1

#define AF_INET  2

#define AF_INET4 2     // IPv4

#define AF_INET6 10    // IPv6

#define PF_UNSPEC AF_UNSPEC

#define PF_LOCAL  AF_LOCAL

#define PF_INET4  AF_INET4

#define PF_INET6  AF_INET6

// internal definition

#define AI_SUPPORTED 0x40F

// for system function 76

#define API_ETH (0<<16)

#define API_IPv4 (1<<16)

#define API_ICMP (2<<16)

#define API_UDP (3<<16)

#define API_TCP (4<<16)

#define API_ARP (5<<16)

#define API_PPPOE (6<<16)

// Socket flags for user calls

#define MSG_NOFLAG 0

#define MSG_PEEK 0x02

#define MSG_DONTWAIT 0x40

// Socket levels

#define SOL_SOCKET 0xffff

//Socket options

#define SO_BINDTODEVICE (1<<9)

#define SO_NONBLOCK (1<<31)

// Error Codes

#define ENOBUFS      1

#define EINPROGRESS  2

#define EOPNOTSUPP   4

#define EWOULDBLOCK  6

#define ENOTCONN     9

#define EALREADY     10

#define EINVALUE     11

#define EMSGSIZE     12

#define ENOMEM       18

#define EADDRINUSE   20

#define ECONNREFUSED 61

#define ECONNRESET   52

#define EISCONN      56

#define ETIMEDOUT    60

#define ECONNABORTED 53

#define PORT(X) (X<<8)

extern int err_code;

#pragma pack(push,1)

struct sockaddr{

    unsigned short sin_family;

    unsigned short sin_port;

    unsigned int sin_addr;

    unsigned long long sin_zero;

};

#pragma pack(pop)

#pragma pack(push,1)

typedef struct{

  unsigned int level;

  unsigned int optionname;

  unsigned int optlenght;

  unsigned char options;

}optstruct;

#pragma pack(pop)

int socket(int domain, int type, int protocol);

int close(int socket);

int bind(int socket, const struct sockaddr *addres, int addres_len);

int listen(int socket, int backlog);

int connect(int socket, const struct sockaddr* address, int socket_len);

int accept(int socket, const struct sockaddr* address, int address_len);

int send(int socket, const void *message, size_t msg_len, int flag);

int recv(int socket, void *buffer, size_t buff_len, int flag);

int setsockopt(int socket,const optstruct* opt);

int getsockopt(int socket, optstruct* opt);

int socketpair(int *sock1, int *sock2);

#endif