TCPClient

#include <stdio.h> #include <WinSock2.h> void main() { WSADATA wsaData; SOCKET socketConnect; struct sockaddr_in serverAddr; ::WSAStartup(0x202, & wsaData); socketConnect = ::socket(AF_INET, SOCK_STREAM,IPPROTO_TCP); if(socketConnect == INVALID_SOCKET) { printf("Cannnot create socket !!\n"); return; } // 접속할 서버의 정보를 설정한다. ::memset(&serverAddr,0,sizeof(serverAddr)); serverAddr.sin_family = AF_INET; serverAddr.sin_addr.s_addr = ::inet_addr("127.0.0.1"); serverAddr.sin_port = ::htons(8600); if(::connect(socketConnect, (struct sockaddr*)&serverAddr, sizeof(serverAddr))== SOCKET_ERROR) { printf("Cannot connect to server !!\n"); return; } //서버와 통신을 한다. { char sendBuffer[127] = "Test client message..."; char recvBuffer[127]; int sentBytes, recvBytes; sentBytes = ::send(socketConnect, sendBuffer, ::strlen(sendBuffer)+ 1, 0); printf("%d bytes sent. \n", sentBytes); recvBytes = ::recv(socketConnect, recvBuffer, 127, 0); printf("%d bytes Received\n%s\n", recvBytes, recvBuffer); } ::shutdown(socketConnect, SD_BOTH); ::closesocket(socketConnect); ::WSACleanup(); }