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/* Copyright (C) 2019-2021 Logaev Maxim (turbocat2001), GPLv2 */

#ifndef _SOCKET_H_

#define _SOCKET_H_

#include 

#include 

#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  // Default INET=IPv4

#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)

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

#pragma pack(push, 1)

struct sockaddr {

    unsigned short sin_family;

    unsigned short sin_port;

    unsigned int sin_addr;

    unsigned long long sin_zero;

};

typedef struct {

    unsigned int level;

    unsigned int optionname;

    unsigned int optlenght;

    unsigned char options;

} optstruct;

#pragma pack(pop)

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

DLLAPI int close(int socket);

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

DLLAPI int listen(int socket, int backlog);

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

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

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

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

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

DLLAPI int getsockopt(int socket, optstruct* opt);

DLLAPI int socketpair(int* socket1, int* socket2);

#endif //_SOCKET_H_