// Copyright 2020 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <optional>
#include <utility>
#include "common/common_funcs.h"
#include "common/common_types.h"
#ifdef _WIN32
#include <winsock2.h>
#elif YUZU_UNIX
#include <netinet/in.h>
#endif
namespace Network {
class Socket;
/// Error code for network functions
enum class Errno {
SUCCESS,
BADF,
INVAL,
MFILE,
NOTCONN,
AGAIN,
CONNREFUSED,
HOSTUNREACH,
NETDOWN,
NETUNREACH,
OTHER,
};
/// Address families
enum class Domain {
INET, ///< Address family for IPv4
};
/// Socket types
enum class Type {
STREAM,
DGRAM,
RAW,
SEQPACKET,
};
/// Protocol values for sockets
enum class Protocol {
ICMP,
TCP,
UDP,
};
/// Shutdown mode
enum class ShutdownHow {
RD,
WR,
RDWR,
};
/// Array of IPv4 address
using IPv4Address = std::array<u8, 4>;
/// Cross-platform sockaddr structure
struct SockAddrIn {
Domain family;
IPv4Address ip;
u16 portno;
};
/// Cross-platform poll fd structure
enum class PollEvents : u16 {
// Using Pascal case because IN is a macro on Windows.
In = 1 << 0,
Pri = 1 << 1,
Out = 1 << 2,
Err = 1 << 3,
Hup = 1 << 4,
Nval = 1 << 5,
};
DECLARE_ENUM_FLAG_OPERATORS(PollEvents);
struct PollFD {
Socket* socket;
PollEvents events;
PollEvents revents;
};
class NetworkInstance {
public:
explicit NetworkInstance();
~NetworkInstance();
};
#ifdef _WIN32
constexpr IPv4Address TranslateIPv4(in_addr addr) {
auto& bytes = addr.S_un.S_un_b;
return IPv4Address{bytes.s_b1, bytes.s_b2, bytes.s_b3, bytes.s_b4};
}
#elif YUZU_UNIX
constexpr IPv4Address TranslateIPv4(in_addr addr) {
const u32 bytes = addr.s_addr;
return IPv4Address{static_cast<u8>(bytes), static_cast<u8>(bytes >> 8),
static_cast<u8>(bytes >> 16), static_cast<u8>(bytes >> 24)};
}
#endif
/// @brief Returns host's IPv4 address
/// @return human ordered IPv4 address (e.g. 192.168.0.1) as an array
std::optional<IPv4Address> GetHostIPv4Address();
} // namespace Network
