HTTP Request in C using low level write to socket functionality

Makefile

all: socket.c
	gcc socket.c -o soc

clean:
	rm -f *~
	rm -f *.o
	rm -f soc

socket.c

/*!
 * \file socket.c
 *
 * Compile with:
 *
 * gcc socket.c -o soc
 *
 * Invoke as:
 *
 * ./soc https://www.google.com 80
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>

#include <netinet/tcp.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netdb.h>

int
socket_connect (char *host, in_port_t port)
{
  struct hostent *hp;
  struct sockaddr_in addr;
  int on = 1, sock;     

  if ((hp = gethostbyname (host)) == NULL)
  {
    herror ("gethostbyname");
    exit (1);
  }
  bcopy (hp->h_addr, &addr.sin_addr, hp->h_length);
  addr.sin_port = htons (port);
  addr.sin_family = AF_INET;
  sock = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);
  setsockopt (sock, IPPROTO_TCP, TCP_NODELAY, (const char *) &on, sizeof (int));

  if (sock == -1)
  {
    perror ("setsockopt");
    exit (1);
  }

  if (connect (sock, (struct sockaddr *) &addr, sizeof (struct sockaddr_in)) == -1)
  {
    perror ("connect");
    exit (1);
  }
  return sock;
}
 
#define BUFFER_SIZE 1024

int
main (int argc, char *argv[])
{
  int fd;
  char buffer[BUFFER_SIZE];

  if(argc < 3)
  {
    fprintf (stderr, "Usage: %s <hostname> <port>\n", argv[0]);
    exit (1); 
  }

  fd = socket_connect (argv[1], atoi (argv[2])); 
  write (fd, "GET /\r\n", strlen ("GET /\r\n")); /* write(fd, char[]*, len); */
  bzero (buffer, BUFFER_SIZE);

  while (read (fd, buffer, BUFFER_SIZE - 1) != 0)
  {
    fprintf (stderr, "%s", buffer);
    bzero (buffer, BUFFER_SIZE);
  }

  shutdown (fd, SHUT_RDWR); 
  close (fd); 

  return 0;
}

/* EOF */