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/* $OpenBSD: server.c,v 1.2 2004/06/18 04:51:31 henning Exp $ */
/*
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.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 MIND, 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/param.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ntpd.h"
#include "ntp.h"
int
setup_listeners(struct servent *se, struct ntpd_conf *conf, u_int *cnt)
{
struct listen_addr *la;
u_int new_cnt = 0;
if (TAILQ_EMPTY(&conf->listen_addrs)) {
if ((la = calloc(1, sizeof(struct listen_addr))) == NULL)
fatal("setup_listeners calloc");
la->sa.ss_len = sizeof(struct sockaddr_in);
((struct sockaddr_in *)&la->sa)->sin_family = AF_INET;
((struct sockaddr_in *)&la->sa)->sin_addr.s_addr =
htonl(INADDR_ANY);
((struct sockaddr_in *)&la->sa)->sin_port = se->s_port;
TAILQ_INSERT_TAIL(&conf->listen_addrs, la, entry);
if ((la = calloc(1, sizeof(struct listen_addr))) == NULL)
fatal("setup_listeners calloc");
la->sa.ss_len = sizeof(struct sockaddr_in6);
((struct sockaddr_in6 *)&la->sa)->sin6_family = AF_INET6;
((struct sockaddr_in6 *)&la->sa)->sin6_port = se->s_port;
TAILQ_INSERT_TAIL(&conf->listen_addrs, la, entry);
}
TAILQ_FOREACH(la, &conf->listen_addrs, entry) {
new_cnt++;
switch (la->sa.ss_family) {
case AF_INET:
if (((struct sockaddr_in *)&la->sa)->sin_port == 0)
((struct sockaddr_in *)&la->sa)->sin_port =
se->s_port;
break;
case AF_INET6:
if (((struct sockaddr_in6 *)&la->sa)->sin6_port == 0)
((struct sockaddr_in6 *)&la->sa)->sin6_port =
se->s_port;
break;
default:
fatalx("king bula sez: af borked");
}
if ((la->fd = socket(la->sa.ss_family, SOCK_DGRAM, 0)) == -1)
fatal("socket");
if (bind(la->fd, (struct sockaddr *)&la->sa, la->sa.ss_len) ==
-1)
fatal("bind");
}
*cnt = new_cnt;
return (0);
}
int
ntp_reply(int fd, struct sockaddr *sa, struct ntp_msg *query, int auth)
{
ssize_t len;
struct l_fixedpt t;
struct ntp_msg reply;
if (auth)
len = NTP_MSGSIZE;
else
len = NTP_MSGSIZE_NOAUTH;
bzero(&reply, sizeof(reply));
reply.status = 0 | (query->status & VERSIONMASK);
if ((query->status & MODEMASK) == MODE_CLIENT)
reply.status |= MODE_SERVER;
else
reply.status |= MODE_SYM_PAS;
reply.stratum = 2;
reply.ppoll = query->ppoll;
reply.precision = 0; /* XXX */
reply.refid = htonl(t.fraction); /* XXX */
get_ts(&t);
reply.reftime.int_part = htonl(t.int_part); /* XXX */
reply.reftime.fraction = htonl(t.fraction); /* XXX */
reply.rectime.int_part = htonl(t.int_part);
reply.rectime.fraction = htonl(t.fraction);
reply.xmttime.int_part = htonl(t.int_part);
reply.xmttime.fraction = htonl(t.fraction);
reply.orgtime.int_part = query->xmttime.int_part;
reply.orgtime.fraction = query->xmttime.fraction;
return (ntp_sendmsg(fd, sa, &reply, len, auth));
}
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