socket_macro.h

#if defined(_WIN32)

#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0A00
#endif

#include <Windows.h>
#include <iphlpapi.h>
#include <ws2tcpip.h>
#include <winsock2.h>


#pragma comment(lib, "ws2_32.lib")
#pragma comment(lib, "iphlpapi.lib")

#define ISVALIDSOCKET(s) ((s) != INVALID_SOCKET)
#define CLOSESOCKET(s) closesocket(s)
#define GETSOCKETERRNO() (WSAGetLastError())

#else

#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>

#define ISVALIDSOCKET(s) ((s) >= 0)
#define CLOSESOCKET(s) close(s)
#define GETSOCKETERRNO() (errno)

#endif