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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_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)

int err_code;

#pragma pack(push,1)

typedef struct{

    unsigned short sin_family;

    unsigned short sin_port;

    unsigned int sin_addr;

    unsigned long long sin_zero;

}sockaddr;

#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)

static inline int socket(int domain, int type, int protocol)

{

    int socket;

    asm volatile(

    "int $0x40"

    :"=b"(err_code), "=a"(socket)

    :"a"(75), "b"(0), "c"(domain), "d"(type), "S"(protocol)

    );

    return socket;

}

static inline int close(int socket)

{

    int status;

    asm volatile(

    "int $0x40"

    :"=b"(err_code), "=a"(status)

    :"a"(75), "b"(1), "c"(socket)

    );

    return status;

}

static inline int bind(int socket, const sockaddr *addres, int addres_len)

{

    int status;

    asm volatile(

    "int $0x40"

    :"=b"(err_code), "=a"(status)

    :"a"(75), "b"(2), "c"(socket), "d"(addres), "S"(addres_len)

    );

    return status;

}

static inline int listen(int socket, int backlog)

{

    int status;

    asm volatile(

    "int $0x40"

    :"=b"(err_code), "=a"(status)

    :"a"(75), "b"(3), "c"(socket), "d"(backlog)

    );

    return status;

}

static inline int connect(int socket,const sockaddr* address, int socket_len)

{

    int status;

    asm volatile(

    "int $0x40"

    :"=b"(err_code), "=a"(status)

    :"a"(75), "b"(4), "c"(socket), "d"(address), "S"(socket_len)

    );

    return status;

}

static inline int accept(int socket, const sockaddr *address, int address_len)

{

    int new_socket;

    asm volatile(

    "int $0x40"

    :"=b"(err_code), "=a"(new_socket)

    :"a"(75), "b"(5), "c"(socket), "d"(address), "S"(address_len)

    );

    return new_socket;

}

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

{

    int status;

    asm volatile(

    "int $0x40"

    :"=b"(err_code), "=a"(status)

    :"a"(75), "b"(6), "c"(socket), "d"(message), "S"(msg_len), "D"(flag)

    );

    return status;

}

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

{

    int status;

    asm volatile(

    "int $0x40"

    :"=b"(err_code), "=a"(status)

    :"a"(75), "b"(7), "c"(socket), "d"(buffer), "S"(buff_len), "D"(flag)

    );

    return status;

}

static inline int setsockopt(int socket,const optstruct* opt)

{

    int status;

    asm volatile(

        "int $0x40"

        :"=b"(err_code), "=a"(status)

        :"a"(75), "b"(8), "c"(socket),"d"(opt)

    );

    return status;

}

static inline int getsockopt(int socket, optstruct* opt)

{

    int status;

    asm volatile(

        "int $0x40"

        :"=b"(err_code), "=a"(status)

        :"a"(75), "b"(9), "c"(socket),"d"(opt)

    );

    return status;

}

static inline int socketpair(int *socket1, int *socket2)

{

    asm volatile(

        "int $0x40"

        :"=b"(*socket2), "=a"(*socket1)

        :"a"(75), "b"(10)

    );

    err_code=*socket2;

    return *socket1;

}

#endif