源代码如下，编译后运行直接被查杀，瑞星查毒太敏感了些：
#define WINVER 0x0502
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
char *getaddrbyname(char*);
int main(int argc, char *argv[])
{
char host[255] = "localhost";
char uri[255] = "/";
char addr[255];
char httphead[1024];
char buffer[1024];
char *psubstr;
char http_useragent[] = "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1) Gecko/20090624 Firefox/3.5\r\n";
char http_accept[] = "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n";
char http_lang[] = "Accept-Language: zh-cn,zh;q=0.5\r\n";
//char http_encode[] = "Accept-Encoding: gzip,deflate\r\n";
char http_encode[] = "";
char http_charset[] = "Accept-Charset: GB2312,utf-8;q=0.7,*;q=0.7\r\n";
char http_alive[] = "Keep-Alive: 300\r\n";
char http_conn[] = "Connection: keep-alive\r\n";
WORD wVersionRequested;
WSADATA wsaData;
int err;
int is_first = 1;
SOCKET s;
struct sockaddr_in addr_in;
wVersionRequested = MAKEWORD( 2, 2 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) return;
if(argc > 1) strcpy(host,argv[1]);
if(argc > 2) strcpy(uri,argv[2]);
strcpy(addr, getaddrbyname(host) );
sprintf(httphead, "GET %s HTTP/1.1\r\nHost: %s\r\n%s%s%s%s%s%s%s\r\n", uri, host, http_useragent, http_accept, http_lang, http_encode, http_charset, http_alive, http_conn);
s = socket(AF_INET, SOCK_STREAM, 0);
memset((void*)&addr_in.sin_zero, 0, 8);
addr_in.sin_family = AF_INET;
addr_in.sin_port = htons(80);
addr_in.sin_addr.s_addr = inet_addr(addr);
connect(s, (struct sockaddr*)&addr_in, sizeof(addr_in));
send(s, httphead, sizeof(httphead), 0);
while(1)
{
memset(buffer, 0, 1024);
if(!(recv(s, buffer, 1023, 0))) break;
if(is_first)
{
is_first = 0;
psubstr = strstr(buffer, "\r\n\r\n");
if(psubstr==NULL) break;
strcpy(buffer, psubstr+4);
}
printf("%s", buffer);
}
shutdown(s, 0);
WSACleanup();
return 0;
}
char *getaddrbyname(char *hostname)
{
struct hostent *h_hostent;
h_hostent = gethostbyname(hostname);
return inet_ntoa( *((struct in_addr*) h_hostent->h_addr) );
}
用户系统信息：Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1) Gecko/20090624 Firefox/3.5
