用socket与http服务器通信的问题__int_char_include_sockfd_send_buf_

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用socket与http服务器通信的问题

来源: 互联网发布时间：2015-11-16

本文导语: 请高手帮忙,下面的代码为什么服务器没响应,ReadLine()函数读完后是空串? (注:site_name 和 path_name经其它程序测试过,正常) #include #include #include #include #include /* gethostbyname() */ #define RECV_BUF_SIZE 512 #define SEND_BUF...

请高手帮忙,下面的代码为什么服务器没响应,ReadLine()函数读完后是空串?
(注:site_name 和 path_name经其它程序测试过,正常)

#include
#include
#include
#include
#include /* gethostbyname() */

#define RECV_BUF_SIZE 512
#define SEND_BUF_SIZE 512

struct sockaddr_in a;
unsigned short port = 80;
char site_name[256] = "www.maketop.net";
char path_name[256] = "/resource/rs_041112_02.php";

int ConnectToServer(char *url,int *sfd);

int main(int argc, char *argv[])
{
  int sockfd;
  char send_buf[SEND_BUF_SIZE];
  char recv_buf[RECV_BUF_SIZE];
  ConnectToServer(site_name,&sockfd);
  sprintf(send_buf,
  "GET %s HTTP/1.0rn",path_name);
  ksend(sockfd,send_buf,strlen(send_buf),0);
  ReadLine(sockfd,recv_buf);
  printf("%sn",recv_buf);

  close(sockfd);
  return 0;
}
int ReadLine(int sfd,char *l)
{
    int i=0;
    do
    {
        if(buf_readchar(sfd,l+i)h_addr))->s_addr;

  /* to connect ! */
  if(connect(*sfd, (struct sockaddr *)&a, sizeof(a)) == -1)
  {
    printf("connect to server failedn");
    close(*sfd);
    exit(1);
  }
  printf("connect to server succeededn");
  return 0;
}

int ksend(int sfd,char *buf,int length,int flag)
{
    int a;
    a = send(sfd,buf,length,0);
    if(a == -1)
    {
        fprintf(stderr,"send message failedn");
exit(1);
    }
    return 0;
}

int buf_readchar(int fd, char *ret)
{
    int res;

    res = recv(fd, ret, 1, 0);
    if (res