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Revision 1.22, Sat Sep 3 11:52:06 2016 UTC (7 years, 9 months ago) by reyk
Branch: MAIN
CVS Tags: OPENBSD_7_5_BASE, OPENBSD_7_5, OPENBSD_7_4_BASE, OPENBSD_7_4, OPENBSD_7_3_BASE, OPENBSD_7_3, OPENBSD_7_2_BASE, OPENBSD_7_2, OPENBSD_7_1_BASE, OPENBSD_7_1, OPENBSD_7_0_BASE, OPENBSD_7_0, OPENBSD_6_9_BASE, OPENBSD_6_9, OPENBSD_6_8_BASE, OPENBSD_6_8, OPENBSD_6_7_BASE, OPENBSD_6_7, OPENBSD_6_6_BASE, OPENBSD_6_6, OPENBSD_6_5_BASE, OPENBSD_6_5, OPENBSD_6_4_BASE, OPENBSD_6_4, OPENBSD_6_3_BASE, OPENBSD_6_3, OPENBSD_6_2_BASE, OPENBSD_6_2, OPENBSD_6_1_BASE, OPENBSD_6_1, HEAD
Changes since 1.21: +4 -4 lines 

Remove the oh so funny "LOSS OF MIND" from the diclaimer that was not
part of the original ISC license that we use in OpenBSD.  Done for
files were Henning is the original author.

OK henning@ deraadt@

/*	$OpenBSD: ntp_msg.c,v 1.22 2016/09/03 11:52:06 reyk Exp $ */

/*
 * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
 * Copyright (c) 2004 Alexander Guy <alexander.guy@andern.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>

#include "ntpd.h"

int
ntp_getmsg(struct sockaddr *sa, char *p, ssize_t len, struct ntp_msg *msg)
{
	if (len != NTP_MSGSIZE_NOAUTH && len != NTP_MSGSIZE) {
		log_debug("malformed packet received from %s",
		    log_sockaddr(sa));
		return (-1);
	}

	memcpy(msg, p, sizeof(*msg));

	return (0);
}

int
ntp_sendmsg(int fd, struct sockaddr *sa, struct ntp_msg *msg)
{
	socklen_t	sa_len;
	ssize_t		n;

	if (sa != NULL)
		sa_len = SA_LEN(sa);
	else
		sa_len = 0;

	n = sendto(fd, msg, sizeof(*msg), 0, sa, sa_len);
	if (n == -1) {
		if (errno == ENOBUFS || errno == EHOSTUNREACH ||
		    errno == ENETDOWN || errno == EHOSTDOWN) {
			/* logging is futile */
			return (-1);
		}
		log_warn("sendto");
		return (-1);
	}

	if (n != sizeof(*msg)) {
		log_warnx("ntp_sendmsg: only %zd of %zu bytes sent", n,
		    sizeof(*msg));
		return (-1);
	}

	return (0);
}