#include <stdio.h>
#include <errno.h>
#include <stdlib.h>

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

#include <unistd.h>
#include <fcntl.h>

#define BS 4096*3
main(int argc, char ** argv)
{
  int s, n, ns, cond, len, rc, val;
  short port = 6767;
  struct sockaddr_in mysock;
  char buffer[BS];
  char addr[16], * host;
  time_t t; 
  struct hostent * he;
  s = socket(PF_INET, SOCK_DGRAM, 0);

  if (argc >= 2) {
    host = argv[1];
  } else {
    printf ("error\n");
  };

  if (argc >= 3) {
    port = atoi(argv[2]);
  };

  mysock.sin_family = AF_INET;
  mysock.sin_port = htons(port);
  he = gethostbyname(host);
  if (he == NULL) exit(9);

  printf ("host  %s : %s, %d %#x \n", host, he->h_name, he->h_addrtype, he->h_addr_list[0]);
  memcpy(&mysock.sin_addr.s_addr, he->h_addr_list[0], he->h_length);
  
  printf("\n");
  time(&t);
  rc = sprintf(buffer, "%d : %s : hei hei", getpid(), ctime(&t));
  len = sizeof(struct sockaddr_in);
  inet_ntop(AF_INET, &mysock.sin_addr.s_addr, addr, 16);
  printf("sento: %s:%d =\"%s\"\n", addr, ntohs(mysock.sin_port), buffer);
  rc = sendto(s, buffer, rc, 0, (struct sockaddr*) &mysock, len); 

};

/* 
 * Local variables:
 *  compile-command: "gcc -g  -o client client.c"
 * End:
 */