win socket tcp

#include <stdio.h> #include <winsock2.h> #pragma comment ( lib, "ws2_32.lib" ) void main() { int len=1024; int flag=0; char Local_IP[20]={'0'}; char recvBuf[1024]="\0"; char sendBuf[1024]="\0"; char TempBuf[1024]="\0"; char path[100]={'0'}; printf("请输入本地IP:"); gets(Local_IP); WORD wVersion = MAKEWORD(2, 0); WSADATA wsData; if (WSAStartup(wVersion, &wsData)!=0) { printf("初始化失败!\n"); } SOCKET sockSrv=socket(AF_INET,SOCK_STREAM,0); sockaddr_in addServer,addrClient; addServer.sin_family=AF_INET; //addServer.sin_addr.S_un.S_addr=inet_addr(Local_IP); addServer.sin_addr.s_addr = INADDR_ANY; addServer.sin_port=htons(8000); if (bind(sockSrv,(SOCKADDR*)&addServer,sizeof(SOCKADDR))!=0) { printf("端口连接失败!\n"); } else { loop: listen(sockSrv,5); // addrClient.sin_family=AF_INET; // addrClient.sin_addr.S_un.S_addr=INADDR_ANY; // addrClient.sin_port=htons(8000); printf("等待客户端连接……\n"); SOCKET sockConn=accept(sockSrv,(SOCKADDR*)&addrClient,&len); if (sockConn == -1) { printf("链接失败！\n"); return ; } printf("连接成功!\n"); while (1) { printf("发送："); fflush(stdin); gets(sendBuf); if (strcmp(sendBuf,"exit")==0) { send(sockConn,sendBuf,len,0); break; } else { send(sockConn,sendBuf,len,0); // break; } } closesocket(sockConn); } }