#include <stdio.h>
#include <netdb.h>
#include <string.h>
#include <unistd.h>

#define HOSTADDR "www.baidu.com"
#define HOSTFILE "s?wd="
#define WORD "http"
#define PORT 80

int main(int argc, char *argv[])
{
    int sockfd, ret;
    char request[1024] = {0};
    char buf[1024] = {0};
    struct sockaddr_in server;
    struct hostent *host = NULL;

    host = gethostbyname(HOSTADDR);
    if (NULL == host)
    {
        perror("gethostbyname");
        return -1;
    }

    sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (-1 == sockfd)
    {
        perror("socket");
        return -1;
    }

    bzero(&server, sizeof(server));
    server.sin_family = AF_INET;
    server.sin_port = htons(PORT);
    server.sin_addr = *((struct in_addr *)host->h_addr);

    if (-1 == connect(sockfd, (struct sockaddr *)&server, sizeof(struct sockaddr)))
    {
        perror("connect");
        close(sockfd);
        return -1;
    }

    sprintf(request, "GET /%s%s HTTP/1.1\r\nAccept: */*\r\nHost: %s:%d\r\nConnect: Close\r\n\r\n", HOSTFILE, WORD, HOSTADDR, PORT);

    write(sockfd, request, sizeof(request));

    while (ret = read(sockfd, buf, sizeof(buf)))
    {
        printf("%s", buf);
        memset(buf, 0, sizeof(buf));
    }

    close(sockfd);
    return 0;
}