/*
 * ping.c
 *
 * Functions handiling the generation and parsing of ping and pong packets.
 *
 * Copyright (c) 2004 Todd MacDermid <tmacd@synacklabs.net>
 *                    Jack Lloyd <lloyd@randombit.net>
 *
 */

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

#include <cutlass.h>

int
cutlass_ping(cutlass_t *cut_handle, conn_t *conn, struct timespec *now)
{
  struct cutlass_packet_hdr header;

  /* Construct the stuff: ping packet, no contents */
  header.cut_type = CUT_PING;
  header.channel_id = 0;
  header.length = 0;

  if(cutlass_send_process(cut_handle, conn, &header, NULL, 0) != 0)
      cutlass_sysmsg(cut_handle, CUT_ERROR, 
		     "cutlass_ping: cutlass_send failed\n");

  memcpy(&(conn->last_ping_sent), now, sizeof(struct timespec));
  return(0);
}

int
cutlass_pong(cutlass_t *cut_handle, conn_t *conn, uint8_t *ping_packet, 
	     struct timespec *now)
{
  struct cutlass_packet_hdr header;

  /* Construct the stuff: ping packet, no contents */
  header.cut_type = CUT_PONG;
  header.channel_id = 0;
  header.length = 0;

  if(cutlass_send_process(cut_handle, conn, &header, NULL, 0) != 0)
     {
     cutlass_sysmsg(cut_handle, CUT_ERROR,
                    "cutlass_pong: cutlass_send failed\n");
     return(-1);
     }

  return(0);
}