(自用型)windows/linux網路編程通用跨平台標頭檔定義

#ifndef _SOCKET_TYPE_H#define _SOCKET_TYPE_H#ifdef _WIN32#include <winsock2.h>#define ERRNO(WSAGetLastError())#define NEEDBLOCKWSAEWOULDBLOCKtypedef int socklen_t;#else#include <netinet/in.h>#include <sys/types.h>#include <sys/socket.h>#include <arpa/inet.h>#include <unistd.h>#include <fcntl.h>#include <errno.h>#ifndef INVALID_SOCKET#define INVALID_SOCKET(SOCKET)(~0)#endif#ifndef SOCKET_ERROR#define SOCKET_ERROR(-1)#endif#ifndef closesocket#define closesocket(x)::close(x)#endiftypedef int SOCKET;#define ERRNO (errno)#define NEEDBLOCKEAGAIN#endif#endif