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/*
Copyright (C) 2001-2025 Free Software Foundation, Inc.
This file is part of GNU Inetutils.
GNU Inetutils is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
GNU Inetutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see `http://www.gnu.org/licenses/'. */
#include <config.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <arpa/inet.h>
/*#include <netinet/ip_icmp.h> -- deliberately not including this */
#ifdef HAVE_NETINET_IP_VAR_H
# include <netinet/ip_var.h>
#endif
#include <netdb.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#include <attribute.h>
#include <ping.h>
#include <ping_impl.h>
static int recv_timestamp (int code, void *closure,
struct sockaddr_in *dest, struct sockaddr_in *from,
struct ip *ip, icmphdr_t * icmp, int datalen);
static void print_timestamp (int dupflag, void *closure,
struct sockaddr_in *dest,
struct sockaddr_in *from, struct ip *ip,
icmphdr_t * icmp, int datalen);
static int timestamp_finish (void);
int
ping_timestamp (char *hostname)
{
ping_set_type (ping, ICMP_TIMESTAMP);
ping_set_event_handler (ping, recv_timestamp, NULL);
ping_set_packetsize (ping, ICMP_TSLEN);
if (ping_set_dest (ping, hostname))
error (EXIT_FAILURE, 0, "unknown host");
printf ("PING %s (%s): sending timestamp requests\n",
ping->ping_hostname,
inet_ntoa (ping->ping_dest.ping_sockaddr.sin_addr));
return ping_run (ping, timestamp_finish);
}
int
recv_timestamp (int code, void *closure,
struct sockaddr_in *dest, struct sockaddr_in *from,
struct ip *ip, icmphdr_t *icmp, int datalen)
{
switch (code)
{
case PEV_RESPONSE:
case PEV_DUPLICATE:
print_timestamp (code == PEV_DUPLICATE,
closure, dest, from, ip, icmp, datalen);
break;
case PEV_NOECHO:;
print_icmp_header (from, ip, icmp, datalen);
}
return 0;
}
void
print_timestamp (int dupflag, void *closure MAYBE_UNUSED,
struct sockaddr_in *dest MAYBE_UNUSED,
struct sockaddr_in *from,
struct ip *ip MAYBE_UNUSED, icmphdr_t *icmp, int datalen)
{
char timestr[16];
printf ("%d bytes from %s: icmp_seq=%u", datalen,
inet_ntoa (*(struct in_addr *) &from->sin_addr.s_addr),
ntohs (icmp->icmp_seq));
if (dupflag)
printf (" (DUP!)");
printf ("\n");
printf ("icmp_otime = %s\n",
ping_cvt_time (timestr, sizeof (timestr),
ntohl (icmp->icmp_otime)));
printf ("icmp_rtime = %s\n",
ping_cvt_time (timestr, sizeof (timestr),
ntohl (icmp->icmp_rtime)));
printf ("icmp_ttime = %s\n",
ping_cvt_time (timestr, sizeof (timestr),
ntohl (icmp->icmp_ttime)));
if ((options & OPT_VERBOSE)
&& is_normed_time (ntohl (icmp->icmp_otime))
&& is_normed_time (ntohl (icmp->icmp_otime)))
printf ("difference = %d ms\n",
ntohl (icmp->icmp_ttime) - ntohl (icmp->icmp_otime));
return;
}
int
timestamp_finish (void)
{
return ping_finish ();
}
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