client.cpp
#include<Winsock2.h>
#include<stdio.h>
#include <WS2tcpip.h>
#pragma comment(lib,"ws2_32.lib")
#pragma warning(disable:4996)
#define DEFAULT_PORT 5050
#define DATA_BUFFER 1024
int main(int argc,char *argv[])
{
WSADATA wsaData;
SOCKET sClient;
int iPort = DEFAULT_PORT;
int iLen;
char buf[DATA_BUFFER];
struct sockaddr_in ser;
printf("----------------------------\n");
printf("client\n");
printf("----------------------------\n");
memset(buf, 0, sizeof(buf));
if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
{
printf("Failed to load Winsock.\n");
return 0;
}
ser.sin_family = AF_INET;
ser.sin_port = htons(iPort);
ser.sin_addr.s_addr = inet_addr("127.0.0.1");
sClient = socket(AF_INET, SOCK_STREAM, 0);
if (sClient == INVALID_SOCKET)
{
printf("socket( ) Failed:%d\n", WSAGetLastError());
return 0;
}
if (connect(sClient, (struct sockaddr*)&ser, sizeof(ser)) == INVALID_SOCKET)
{
printf("connect( ) Failed:%d\n", WSAGetLastError());
return 0;
}
else
{
printf("连接成功!");
}
while (1)
{
iLen = recv(sClient, buf, sizeof(buf), 0);
if (iLen == 0)
return 0;
else if (iLen == SOCKET_ERROR)
{
printf("recv( ) Failed:%d\n", WSAGetLastError());
return 0;
}
printf("recv( ) data from server:%s\n", buf);
}
closesocket(sClient);
WSACleanup();
getchar();
printf("Hello");
system("pause");
return 0;
}
server.cpp
#include <WinSock2.h>
#include <stdio.h>
#include <stdlib.h>
#include<malloc.h>
#include <WS2tcpip.h>
#include <string.h>
#pragma warning(disable:4996)
#pragma comment(lib,"ws2_32.lib")
#define DEFAULT_PORT 5050
int main(void)
{
int iPort = DEFAULT_PORT;
WSADATA wasData;
WORD wdVersion = MAKEWORD(2, 2);
SOCKET sListen, sAccept;
int iLen;
int iSend;
char buf[] = "I am a server";
struct sockaddr_in ser, cli;
printf("----------------------------\n");
printf("Server waiting\n");
printf("----------------------------\n");
if (WSAStartup(wdVersion, &wasData)!=0)
{
printf("Falied to load Winsock.\n");
return -1;
}
sListen = socket(AF_INET, SOCK_STREAM, 0);
if (sListen == INVALID_SOCKET)
{
printf("socket() Failed:%d\n", WSAGetLastError());
return -1;
}
ser.sin_family = AF_INET;
ser.sin_port = htons(iPort);
ser.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(sListen, (LPSOCKADDR)&ser, sizeof(ser)) == SOCKET_ERROR)
{
printf("bind( ) Failed: %d\n", WSAGetLastError());
return -1;
}
if (listen(sListen, 5) == SOCKET_ERROR)
{
printf("listen( ) Failed:%d\n", WSAGetLastError());
return -1;
}
iLen = sizeof(cli);
sAccept = accept(sListen, (struct sockaddr*)&cli, &iLen);
if (sAccept == INVALID_SOCKET)
{
printf("accept( ) Failed: %d\n", WSAGetLastError());
return -1;
}
else
{
printf("建立连接成功!");
}
printf("Accepted client IP:[%s],port:[%d]\n",inet_ntoa(cli.sin_addr),ntohs(cli.sin_port));
while (1)
{
iSend = send(sAccept, buf, sizeof(buf), 0);
if (iSend == SOCKET_ERROR)
{
printf("send( ) Failed.:%d\n", WSAGetLastError());
break;
}
else if (iSend == 0)
printf("isend==0");
else
{
printf("send( ) byte:%d\n", iSend);
printf("-------------------------------\n");
}
printf("发送成功,再次输入消息:");
char c = getchar();
int i = 0;
while (c != '\n')
{
buf[i] = c;
c = getchar();
}
printf("The send data is:%s", buf);
}
closesocket(sListen);
WSACleanup();
system("pause");
return 0;
}