C实现简单web服务器-2(windows)
#include <Winsock2.h>#include <stdio.h>
#include<string.h>
#pragma comment(lib,"Ws2_32.lib")
#defineBUF_LENGTH 1024
#define USER_ERROR -1
int main()
{
WSADATA wsData;
SOCKET sClient; //客户端套接字
struct sockaddr_in ser; //服务器进程地址
char send_buf;//发送缓存
char recv_buf;//接收缓存
int iSend, iRecv; //接收数据和发送数据长度
//第一步：加载协议栈
if (WSAStartup(MAKEWORD(2,2),&wsData)!=0)
{
printf("Failed to load Winsock.\n");
return USER_ERROR;
}
//创建服务器地址
ser.sin_family=AF_INET;
ser.sin_port=htons(80); //服务器端口号
ser.sin_addr.s_addr=inet_addr("127.0.0.1"); //服务器IP地址
//第二步：创建流套接字,运输层采用TCP协议
sClient=socket(AF_INET,SOCK_STREAM,0);
if (sClient==INVALID_SOCKET)
{
printf("socket() Failed:%d\n",WSAGetLastError());
return USER_ERROR;
}
//第三步：通过创建的套接字向相应的服务器发起连接请求
if (connect(sClient,(struct sockaddr*)&ser,sizeof(ser))==INVALID_SOCKET)
{
printf("connet() Failed:%d\n",WSAGetLastError());
return USER_ERROR;
}
else //连接成功
{
//第四步：通过套接字发数据
printf("input data to send:\n");
memset(send_buf,0,sizeof(send_buf));//缓存清0
gets(send_buf);
iSend=send(sClient,send_buf,sizeof(send_buf),0);//通过套接字发送数据给服务器
if (iSend==SOCKET_ERROR) //发送不成功
{
printf("send() Failed:%d\n",WSAGetLastError());
return USER_ERROR;
}
else
printf("send success\n");//发送成功
printf("recv data from server: \n");
while(1)
{
memset(recv_buf,0,sizeof(recv_buf));//缓存清0
iRecv=recv(sClient,recv_buf,sizeof(recv_buf),0);
if(strcmp(recv_buf,"") == 0) // 接收缓存为空则表示接受完毕，退出
break;
if (iRecv ==SOCKET_ERROR) //接收错误
{
printf("recv() Failed:%d\n",WSAGetLastError());
return USER_ERROR;
}
else
printf("%s\n",recv_buf); // 打印接收缓存
}
}
//第五步：释放该套接字，断开连接
closesocket(sClient);
WSACleanup();
return 0;
}
页:
[1]