usr.sbin/dntpd/defs.h

   1 /*
   2  * Copyright (c) 2005 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/usr.sbin/dntpd/defs.h,v 1.11 2007/06/26 02:40:20 dillon Exp $
  35  */
  36
  37 #include <sys/types.h>
  38 #include <sys/time.h>
  39 #include <sys/socket.h>
  40 #include <netinet/in.h>
  41 #include <netinet/in_systm.h>
  42 #include <netinet/ip.h>
  43 #include <arpa/inet.h>
  44 #include <netdb.h>
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <stdarg.h>
  48 #include <string.h>
  49 #include <signal.h>
  50 #include <unistd.h>
  51 #include <fcntl.h>
  52 #include <limits.h>
  53 #include <errno.h>
  54 #include <assert.h>
  55 #include <math.h>
  56 #include <syslog.h>
  57
  58 #include "ntp.h"
  59 #include "client.h"
  60
  61 #define DNTPD_VERSION   "1.0"
  62
  63 #define logdebug(level, ctl, varargs...)                \
  64         if (level <= debug_level) _logdebug(level, ctl, ##varargs);
  65 #define logdebuginfo(info, level, ctl, varargs...)      \
  66         if (level <= debug_level) _logdebuginfo(info, level, ctl, ##varargs);
  67
  68 extern int debug_opt;
  69 extern int debug_level;
  70 extern int quickset_opt;
  71 extern int no_update_opt;
  72 extern int min_sleep_opt;
  73 extern int nom_sleep_opt;
  74 extern int max_sleep_opt;
  75 extern int log_stderr;
  76 extern int family;
  77 extern double insane_deviation;
  78
  79 typedef enum { LOG_DNS_ERROR, IGNORE_DNS_ERROR } dns_error_policy_t;
  80
  81 int udp_socket(const char *target, int port, struct sockaddr *sam,
  82                dns_error_policy_t dns_error_policy);
  83 int udp_ntptimereq(int fd, struct timeval *rtvp,
  84                    struct timeval *ltvp, struct timeval *lbtvp);
  85 void reconnect_server(server_info_t info);
  86 void disconnect_server(server_info_t info);
  87
  88 void l_fixedpt_to_tv(struct l_fixedpt *fixed, struct timeval *tvp);
  89 void tv_subtract_micro(struct timeval *tvp, long usec);
  90 void tv_add_micro(struct timeval *tvp, long usec);
  91 void tv_add_offset(struct timeval *tvp, double offset);
  92 double tv_delta_double(struct timeval *tv1, struct timeval *tv2);
  93 void tv_to_ts(struct timeval *tv, struct timespec *ts);
  94 void ts_to_tv(struct timespec *ts, struct timeval *tv);
  95
  96 void logerr(const char *ctl, ...) __printflike(1, 2);
  97 void logerrstr(const char *ctl, ...) __printflike(1, 2);
  98 void _logdebug(int level, const char *ctl, ...) __printflike(2, 3);
  99 void _logdebuginfo(server_info_t info, int level, const char *ctl, ...)
 100           __printflike(3, 4);
 101
 102 void sysntp_getbasetime(struct timeval *tvp);
 103 int sysntp_offset_correction_is_running(void);
 104 double sysntp_correct_offset(double offset);
 105 double sysntp_correct_course_offset(double offset);
 106 void sysntp_correct_freq(double freq);
 107 void sysntp_clear_alternative_corrections(void);
 108