WINDOWS C HTTP

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一个简单的HTTP协议客户端源代码

#include<stdio.h>

#include<winsock2.h>

#include<windows.h>

typedef struct{

char line[256];

char head[256];

char body[256];

}message;

void main(){

int num;

SOCKET sfd;

WSADATA wsa;

struct sockaddr_in serv;

message req;

char sndBuf[1024], rcvBuf[1024];

WSAStartup(MAKEWORD(2,1),&wsa);

if((sfd=socket(AF_INET,SOCK_STREAM,0))<0){

perror("socket error!");

exit(1);

}

memset(&serv,0,sizeof(serv));

serv.sin_family=AF_INET;

serv.sin_port=htons(80);

//BING 70.37.92.127

//BAIDU 115.239.210.26

//baidu api 180.149.132.118

//google 74.125.31.99

serv.sin_addr.S_un.S_addr=inet_addr("74.125.31.99");

if((connect(sfd,(struct sockaddr *)&serv,sizeof(serv)))<0){

perror("connet error!");

exit(1);

}

memset(sndBuf,0,1024);

memset(rcvBuf,0,1024);

strcpy(req.line,"GET / HTTP/1.0\r\n");

strcat(sndBuf,req.line);

strcpy(req.head,"\r\n");

strcat(sndBuf,req.head);

puts(sndBuf);

if((num=send(sfd,sndBuf,1024,0))<0){

perror("send error!");

exit(1);

}

puts("send success!\n");

do{

if((num=recv(sfd,rcvBuf,2048,0))<0){

perror("recv error!");

exit(1);

}

else if(num>0){

printf("%s",rcvBuf);

memset(rcvBuf,0,1024);

}

}while(num>0);

puts("\nread success!\n");

closesocket(sfd);

WSACleanup();

}

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