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/* $OpenBSD: server.c,v 1.1 2004/06/02 10:08:59 henning Exp $ */
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/*
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* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/param.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "ntpd.h"
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#include "ntp.h"
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int
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setup_listeners(struct servent *se, struct ntpd_conf *conf)
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{
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struct listen_addr *la;
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if (TAILQ_EMPTY(&conf->listen_addrs)) {
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if ((la = calloc(1, sizeof(struct listen_addr))) == NULL)
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fatal("setup_listeners calloc");
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la->sa.ss_len = sizeof(struct sockaddr_in);
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((struct sockaddr_in *)&la->sa)->sin_family = AF_INET;
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((struct sockaddr_in *)&la->sa)->sin_addr.s_addr =
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htonl(INADDR_ANY);
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((struct sockaddr_in *)&la->sa)->sin_port = se->s_port;
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TAILQ_INSERT_TAIL(&conf->listen_addrs, la, entry);
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if ((la = calloc(1, sizeof(struct listen_addr))) == NULL)
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fatal("setup_listeners calloc");
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la->sa.ss_len = sizeof(struct sockaddr_in6);
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((struct sockaddr_in6 *)&la->sa)->sin6_family = AF_INET6;
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((struct sockaddr_in6 *)&la->sa)->sin6_port = se->s_port;
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TAILQ_INSERT_TAIL(&conf->listen_addrs, la, entry);
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}
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TAILQ_FOREACH(la, &conf->listen_addrs, entry) {
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switch (la->sa.ss_family) {
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case AF_INET:
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if (((struct sockaddr_in *)&la->sa)->sin_port == 0)
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((struct sockaddr_in *)&la->sa)->sin_port =
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se->s_port;
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break;
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case AF_INET6:
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if (((struct sockaddr_in6 *)&la->sa)->sin6_port == 0)
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((struct sockaddr_in6 *)&la->sa)->sin6_port =
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se->s_port;
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break;
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default:
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fatalx("king bula sez: af borked");
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}
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if ((la->fd = socket(la->sa.ss_family, SOCK_DGRAM, 0)) == -1)
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fatal("socket");
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if (bind(la->fd, (struct sockaddr *)&la->sa, la->sa.ss_len) ==
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-1)
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fatal("bind");
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}
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return (0);
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}
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int
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ntp_reply(int fd, struct sockaddr *sa, struct ntp_msg *query, int auth)
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{
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ssize_t len;
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struct l_fixedpt t;
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struct ntp_msg reply;
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if (auth)
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len = NTP_MSGSIZE;
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else
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len = NTP_MSGSIZE_NOAUTH;
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bzero(&reply, sizeof(reply));
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reply.status = 0 | (query->status & VERSIONMASK);
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if ((query->status & MODEMASK) == MODE_CLIENT)
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reply.status |= MODE_SERVER;
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else
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reply.status |= MODE_SYM_PAS;
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reply.stratum = 2;
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reply.ppoll = query->ppoll;
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reply.precision = 0; /* XXX */
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reply.refid = htonl(t.fraction); /* XXX */
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get_ts(&t);
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reply.reftime.int_part = htonl(t.int_part); /* XXX */
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reply.reftime.fraction = htonl(t.fraction); /* XXX */
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reply.rectime.int_part = htonl(t.int_part);
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reply.rectime.fraction = htonl(t.fraction);
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reply.xmttime.int_part = htonl(t.int_part);
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reply.xmttime.fraction = htonl(t.fraction);
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reply.orgtime.int_part = query->xmttime.int_part;
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reply.orgtime.fraction = query->xmttime.fraction;
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return (ntp_sendmsg(fd, sa, &reply, len, auth));
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}
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