winSocket编程简单入门例子
//Server.cpp
#include
#include
#include
#pragma comment(lib, "ws2_32.lib");
#define PORT 5000
void main()
{
int port = PORT;
WSADATA wsaData;
SOCKET sListen, sAccept;
int iLen;
int iSend;
char buf[] = "hello, how are you";
struct sockaddr_in serv,cliet;
if(WSAStartup(MAKEWORD(2,2),&wsaData) != 0)//启动命令
{
printf("Winsock load failed\n");
return;
}
sListen = socket(AF_INET, SOCK_STREAM, 0);//建立套接字
if (sListen == INVALID_SOCKET)
{
printf("socket failed:d%\n",WSAGetLastError());
return;
}
serv.sin_family = AF_INET;
serv.sin_port = htons(port);//设置端口
//serv.sin_addr.s_addr = htonl(INADDR_ANY);
serv.sin_addr.s_addr = inet_addr("127.0.0.1");
if (bind(sListen, (LPSOCKADDR)&serv, sizeof(serv)) == SOCKET_ERROR)//绑定
{
printf("bind()failed:%d\n", WSAGetLastError());
return;
}
if (listen(sListen, 5) == SOCKET_ERROR)
{
printf("listen()failed:d%\n", WSAGetLastError());
return;
}
iLen = sizeof (cliet);
while (1)
{
sAccept = accept(sListen, (sockaddr*)&cliet, &iLen);
if (sAccept == INVALID_SOCKET)
{
printf("accept()failed:d%\n", WSAGetLastError());
break;
}
//获得客户端的ip和端口
printf("获得客户端的ip和端口\n");
printf("accepted client IP:[%s],port:[%d]\n", inet_ntoa(cliet.sin_addr),ntohs(cliet.sin_port));
iSend = send(sAccept, buf, sizeof(buf), 0);//把buf中的内容发送出去
if (iSend == SOCKET_ERROR)
{
printf("send()failed:%d\n", WSAGetLastError());
break;
}
else if(iSend == 0)
break;
else
{
printf("客户端发送出的字节数\n");
printf("send() byte:%d\n", send);
}
closesocket(sAccept);
}
closesocket(sListen);
WSACleanup();
}
#########################################################
//Client.cpp
#include
#include
#pragma comment(lib, "ws2_32.lib");
#define PORT 5000
#define BUFFER 1024
int main(int argc,char* argv[])
{
WSADATA wsaData;
SOCKET client;
int port = PORT;
int iLen;
char buf[BUFFER];
struct sockaddr_in serv;
memset(buf, 0, sizeof(buf));
if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0)
{
printf("Winsock load failed\n");
return 0;
}
serv.sin_family = AF_INET;
serv.sin_port = htons(port);
//serv.sin_addr.s_addr = inet_addr(argv[1]);
serv.sin_addr.s_addr = inet_addr("127.0.0.1");
client = socket(AF_INET, SOCK_STREAM, 0);
if (client == INVALID_SOCKET)
{
printf("socket()failed:%d\n", WSAGetLastError());
return 0;
}
if (connect(client, (struct sockaddr*)&serv, sizeof(serv)) == INVALID_SOCKET)
{
//提示链接失败
printf("connect()failed:%d\n", WSAGetLastError());
return 0;
}
else//链接则接收数据
{
iLen = recv(client, 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(client);
WSACleanup();
printf("press any key to continue");
while(1){};
}
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Tags: winSocket