c/c++的http协议的get和post方法

看看人家写的。

 

int sock;

struct sockaddr_in sin;

struct hostent *he=gethostbyname(Server);

if(!he)

{

return HTTP_UNKNOW_HOST;

}

sin.sin_family=he->;h_addrtype;

sin.sin_port = htons(m_port);

sin.sin_addr.s_addr=((unsigned long*)(he->;h_addr_list[0]))[0];

if((sock=socket(AF_INET,SOCK_STREAM,0))<0)

{

return HTTP_SOCKET_ERROR;

}

if(connect(sock,(struct sockaddr*)&sin,sizeof(sin))<0)

{

close(sock);

return HTTP_CONNECT_ERROR;

}       

char str[4096];

sprintf(str,"GET %s HTTP/1.0\r\nHost:%s\r\nUser-Agent:Mozilla/4.0\r\n\r\n",query,(LPCSTR)m_host);

if(write(sock,str,strlen(str))<0)

{

close(sock);

return HTTP_WRITE_ERROR;

}

fd_set rfds;

struct timeval tv;

FD_ZERO(&rfds);

FD_SET(sock,&rfds);

tv.tv_sec=m_nSecs;

tv.tv_usec=0;

if(!select(sock+1,&rfds,NULL,NULL,&tv))

{

close(sock);

return HTTP_SELECT_ERROR;

}       

if(FD_ISSET(sock,&rfds))

{

int        len=1024*4;

int i=0;

int rv=0;

char* buf=(char*)malloc((len+1)*sizeof(char));

while((rv=read(sock,buf,len)))

{

buf[rv] = 0 ;

m_content += buf ;

}

close(sock);

free(buf) ;

if(!m_content.IsEmpty())

{

if( m_content.Find("200")>;=m_content.Find("\n") ) {

return HTTP_UNKNOWN_ERROR;

}

if(m_pBody=(char*)m_content.Find("\r\n\r\n")) {

*m_pBody='\0';

m_pBody+=4;

} else if(m_pBody=(char*)m_content.Find("\n\n")) {

*m_pBody='\0';

m_pBody+=2 ;

} else {

return HTTP_BAD_HEADER;

}

return 0 ;

}

return HTTP_READ_ERROR ;

}

close(sock);

return HTTP_UNKNOWN_ERROR;