int
ping_xmit (PING *p)
{
int i, buflen;
if (_ping_setbuf (p))
return -1;
buflen = _ping_packetsize (p);
/* Mark sequence number as sent */
_PING_CLR (p, p->ping_num_xmit % p->ping_cktab_size);
/* Encode ICMP header */
switch (p->ping_type)
{
case ICMP_ECHO:
icmp_echo_encode (p->ping_buffer, buflen, p->ping_ident,
p->ping_num_xmit);
break;
case ICMP_TIMESTAMP:
icmp_timestamp_encode (p->ping_buffer, buflen, p->ping_ident,
p->ping_num_xmit);
break;
case ICMP_ADDRESS:
icmp_address_encode (p->ping_buffer, buflen, p->ping_ident,
p->ping_num_xmit);
break;
default:
icmp_generic_encode (p->ping_buffer, buflen, p->ping_type, p->ping_ident,
p->ping_num_xmit);
break;
}
i = sendto (p->ping_fd, (char *)p->ping_buffer, buflen, 0,
(struct sockaddr*) &p->ping_dest,
sizeof (struct sockaddr_in));
if (i < 0)
{
perror ("ping: sendto");
}
else
{
p->ping_num_xmit++;
if (i != buflen)
printf ("ping: wrote %s %d chars, ret=%d\n",
p->ping_hostname, buflen, i);
}
return 0;
}
int
trace_write (trace_t * t)
{
int len;
assert (t);
switch (t->type)
{
case TRACE_UDP:
{
char data[] = "SUPERMAN";
len = sendto (t->udpfd, (char *) data, sizeof (data),
0, (struct sockaddr *) &t->to, sizeof (t->to));
if (len < 0)
{
return 2;
}
if (gettimeofday (&t->tsent, NULL) < 0)
return -1;
}
break;
case TRACE_ICMP:
{
icmphdr_t hdr;
/* FIXME: We could use the pid as the icmp seqno/ident. */
if (icmp_echo_encode ((u_char *) &hdr, sizeof (hdr), pid, pid))
return -1;
len = sendto (t->icmpfd, (char *) &hdr, sizeof (hdr),
0, (struct sockaddr *) &t->to, sizeof (t->to));
if (len < 0)
{
return 2;
}
if (gettimeofday (&t->tsent, NULL) < 0)
return -1;
}
break;
/* FIXME: type according to RFC 1393 */
default:
break;
}
return 0;
}
