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Full Discussion: http HEAD reuest
Top Forums Programming http HEAD reuest Post 302138742 by chamaraHe on Wednesday 3rd of October 2007 09:15:09 AM
Old 10-03-2007
http HEAD reuest
I have written a c socket programe which can send the http GET request.But it dont work for HEAD reuest.can anyone help me.I am connected to internet via a proxy and the port/ip in the programe are proxies ones
--------------------------------------------------

Code:
#include <stdlib.h>
#include <stdio.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/socket.h>
#include <unistd.h>
#include <string.h>

/* Print the contents of the home page for the server's socket.
   Return an indication of success.  */

void get_home_page (int socket_fd)
{
  char buffer[10000];
  ssize_t number_characters_read;

  /* Send the HTTP GET command for the home page.  */
  sprintf (buffer, "GET http://www.google.lk\n");
  write (socket_fd, buffer, strlen (buffer));
  /* Read from the socket.  read may not return all the data at one
     time, so keep trying until we run out.  */
  while (1) {
    number_characters_read = read (socket_fd, buffer, 10000);
    if (number_characters_read == 0)
      return;
    /* Write the data to standard output.  */
    fwrite (buffer, sizeof (char), number_characters_read, stdout);
  }
}

int main (int argc, char* const argv[])
{
  int socket_fd;
  struct sockaddr_in name;
  struct hostent *hostinfo;

  /* Create the socket.  */
  socket_fd = socket (AF_INET, SOCK_STREAM, 0);
  /* Store the server's name in the socket address.  */
  name.sin_family = AF_INET;
  /* Convert from strings to numbers.this is proxy ip address  */
  hostinfo = gethostbyname (argv[1]);
  if (hostinfo == NULL)
    return 1;
  else
    name.sin_addr.s_addr = ((struct in_addr *)(hostinfo->h_addr))->s_addr;
  /* Web servers use port 3128 which is the port we connect to proxy.  */
  name.sin_port = htons (3128);

  /* Connect to the web server  */
  if (connect (socket_fd,(struct sockaddr *)&name,sizeof (name)) == -1) {
    perror ("connect");
    return 1;
  }
  /* Retrieve the server's home page.  */
  get_home_page (socket_fd);

  return 0;
}

Last edited by vino; 10-03-2007 at 10:28 AM.. Reason: added code tags
 

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LEARN ABOUT DEBIAN

in

in.h(3HEAD)                                                           Headers                                                          in.h(3HEAD)

NAME

       in.h, in - Internet Protocol family

SYNOPSIS

       #include <netinet/in.h>

DESCRIPTION

       The <netinet/in.h> header defines the following types through typedef:

       in_port_t       An unsigned integral type of exactly 16 bits.

       in_addr_t       An  unsigned  integral  type  of exactly 32 bits. The <netinet/in.h> header defines the in_addr structure that includes the
                       following member:

       The <netinet/in.h> header defines the in_addr structure that includes the following member:

       in_addr_t       s_addr

       The <netinet/in.h> header defines the type sa_family_t as described in socket.h(3HEAD).

       The <netinet/in.h> header defines the following macros for use as values of the level argument of getsockopt() and setsockopt():

       IPPROTO_IP              Dummy for  IP

       IPPROTO_ICMP            Control message protocol

       IPPROTO_TCP             TCP

       IPPROTO_UDP             User datagram protocol The <netinet/in.h> header defines the following macros for use as destination addresses  for
                               connect(), sendmsg(), and sendto():

       INADDR_ANY              Local host address

       INADDR_BROADCAST        Broadcast address

       The  <netinet/in.h>  header  defines the sockaddr_in structure that is used to store addresses for the Internet protocol family.  Values of
       this type must be cast to struct sockaddr for use with the socket interfaces.

   Default
       For applications that do not require standard-conforming behavior (those that use the socket interfaces described in section(3SOCKET)  of
       the reference manual; see Intro(3) and standards(5)), the <netinet/in.h> header defines the sockaddr_in structure that includes the follow-
       ing members:

       sa_family_t     sin_family
       in_port_t       sin_port
       struct in_addr  sin_addr
       char            sin_zero[8]

   Standard conforming
       For applications that require standard-conforming behavior (those that use the socket interfaces described in section(3XNET) of the refer-
       ence  manual;  see Intro(3) and standards(5)), the <netinet/in.h> header defines the sockaddr_in structure that includes the following mem-
       bers:

       sa_family_t     sin_family
       in_port_t       sin_port
       struct in_addr  sin_addr
       unsigned char   sin_zero[8]

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Interface Stability          |Standard                     |
       +-----------------------------+-----------------------------+

SEE ALSO

       Intro(3), connect(3SOCKET), connect(3XNET),  getsockopt(3SOCKET),  getsockopt(3XNET),  sendmsg(3SOCKET),  sendmsg(3XNET),  sendto(3SOCKET),
       sendto(3XNET), setsockopt(3SOCKET), setsockopt(3XNET), socket.h(3HEAD), attributes(5), standards(5)

SunOS 5.10                                                          30 Aug 2002                                                        in.h(3HEAD)
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