从网上抄的一段代码，
用于抓取指定的网页。
代码如下：
C/C++ code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
//#ifndef _WIN32
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
//#endif
char* host = "www.baidu.com"; //指定为抓取www.baidu.com页面
int port = 80;
int main(void)
{
char buffer[4096];
int isock;
struct sockaddr_in pin;
struct hostent * remoteHost;
char message[512];
int done = 0;
int chars = 0;
int l = 0;
if( (remoteHost = gethostbyname(host)) == 0 )
{
printf("Error resolving host\n");
exit(1);
}
bzero(message,sizeof(message));
bzero(&pin,sizeof(pin));
pin.sin_family = AF_INET;
pin.sin_port = htons(port);
pin.sin_addr.s_addr = ( (struct in_addr *)(remoteHost->h_addr) )->s_addr;
if( (isock = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
printf("Error opening socket!\n");
exit(1);
}
sprintf(message, "GET / HTTP/1.1\r\n");
strcat(message, "Host:www.baidu.com\r\n");
strcat(message, &q
