1#ifdef HAVE_CONFIG_H
2# include <config.h>
3#endif
4
5#if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_COMPUTIME)
6/*
7 * /src/NTP/ntp4-dev/libparse/clk_computime.c,v 4.10 2005/04/16 17:32:10 kardel RELEASE_20050508_A
8 *
9 * clk_computime.c,v 4.10 2005/04/16 17:32:10 kardel RELEASE_20050508_A
10 *
11 * Supports Diem's Computime Radio Clock
12 *
13 * Used the Meinberg clock as a template for Diem's Computime Radio Clock
14 *
15 * adapted by Alois Camenzind <alois.camenzind@ubs.ch>
16 *
17 * Copyright (c) 1995-2005 by Frank Kardel <kardel <AT> ntp.org>
18 * Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universitaet Erlangen-Nuernberg, Germany
19 *
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
22 * are met:
23 * 1. Redistributions of source code must retain the above copyright
24 *    notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 *    notice, this list of conditions and the following disclaimer in the
27 *    documentation and/or other materials provided with the distribution.
28 * 3. Neither the name of the author nor the names of its contributors
29 *    may be used to endorse or promote products derived from this software
30 *    without specific prior written permission.
31 *
32 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
42 * SUCH DAMAGE.
43 *
44 */
45
46#include "ntp_fp.h"
47#include "ntp_unixtime.h"
48#include "ntp_calendar.h"
49#include "ntp_stdlib.h"
50
51#include "parse.h"
52
53#ifndef PARSESTREAM
54#include <stdio.h>
55#else
56#include "sys/parsestreams.h"
57extern int printf (const char *, ...);
58#endif
59
60/*
61 * The Computime receiver sends a datagram in the following format every minute
62 *
63 * Timestamp	T:YY:MM:MD:WD:HH:MM:SSCRLF
64 * Pos          0123456789012345678901 2 3
65 *              0000000000111111111122 2 2
66 * Parse        T:  :  :  :  :  :  :  rn
67 *
68 * T	Startcharacter "T" specifies start of the timestamp
69 * YY	Year MM	Month 1-12
70 * MD	Day of the month
71 * WD	Day of week
72 * HH	Hour
73 * MM   Minute
74 * SS   Second
75 * CR   Carriage return
76 * LF   Linefeed
77 *
78 */
79
80static struct format computime_fmt =
81{
82	{
83		{8, 2},  {5,  2}, {2,  2},	/* day, month, year */
84		{14, 2}, {17, 2}, {20, 2},	/* hour, minute, second */
85		{11, 2},                        /* dayofweek,  */
86	},
87	(const unsigned char *)"T:  :  :  :  :  :  :  \r\n",
88	0
89};
90
91static parse_cvt_fnc_t cvt_computime;
92static parse_inp_fnc_t inp_computime;
93
94clockformat_t clock_computime =
95{
96	inp_computime,		/* Computime input handling */
97	cvt_computime,		/* Computime conversion */
98	0,			/* no PPS monitoring */
99	(void *)&computime_fmt,	/* conversion configuration */
100	"Diem's Computime Radio Clock",	/* Computime Radio Clock */
101	24,			/* string buffer */
102	0			/* no private data (complete packets) */
103};
104
105/*
106 * parse_cvt_fnc_t cvt_computime
107 *
108 * convert simple type format
109 */
110static u_long
111cvt_computime(
112	unsigned char *buffer,
113	int            size,
114	struct format *format,
115	clocktime_t   *clock_time,
116	void          *local
117	)
118{
119
120	if (!Strok(buffer, format->fixed_string)) {
121		return CVT_NONE;
122	} else {
123		if (Stoi(&buffer[format->field_offsets[O_DAY].offset], &clock_time->day,
124			 format->field_offsets[O_DAY].length) ||
125		    Stoi(&buffer[format->field_offsets[O_MONTH].offset], &clock_time->month,
126			 format->field_offsets[O_MONTH].length) ||
127		    Stoi(&buffer[format->field_offsets[O_YEAR].offset], &clock_time->year,
128			 format->field_offsets[O_YEAR].length) ||
129		    Stoi(&buffer[format->field_offsets[O_HOUR].offset], &clock_time->hour,
130			 format->field_offsets[O_HOUR].length) ||
131		    Stoi(&buffer[format->field_offsets[O_MIN].offset], &clock_time->minute,
132			 format->field_offsets[O_MIN].length) ||
133		    Stoi(&buffer[format->field_offsets[O_SEC].offset], &clock_time->second,
134			 format->field_offsets[O_SEC].length)) {
135			return CVT_FAIL | CVT_BADFMT;
136		} else {
137
138			clock_time->flags = 0;
139			clock_time->utcoffset = 0;	/* We have UTC time */
140
141			return CVT_OK;
142		}
143	}
144}
145
146/*
147 * parse_inp_fnc_t inp_computime
148 *
149 * grab data from input stream
150 */
151static u_long
152inp_computime(
153	      parse_t      *parseio,
154	      char         ch,
155	      timestamp_t  *tstamp
156	      )
157{
158	unsigned int rtc;
159
160	parseprintf(DD_PARSE, ("inp_computime(0x%p, 0x%x, ...)\n", (void*)parseio, ch));
161
162	switch (ch)
163	{
164	case 'T':
165		parseprintf(DD_PARSE, ("inp_computime: START seen\n"));
166
167		parseio->parse_index = 1;
168		parseio->parse_data[0] = ch;
169		parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
170		return PARSE_INP_SKIP;
171
172	case '\n':
173		parseprintf(DD_PARSE, ("inp_computime: END seen\n"));
174		if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
175			return parse_end(parseio);
176		else
177			return rtc;
178
179	default:
180		return parse_addchar(parseio, ch);
181	}
182}
183
184#else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_COMPUTIME) */
185int clk_computime_bs;
186#endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_COMPUTIME) */
187
188/*
189 * clk_computime.c,v
190 * Revision 4.10  2005/04/16 17:32:10  kardel
191 * update copyright
192 *
193 * Revision 4.9  2004/11/14 15:29:41  kardel
194 * support PPSAPI, upgrade Copyright to Berkeley style
195 *
196 * Revision 4.6  1999/11/28 09:13:49  kardel
197 * RECON_4_0_98F
198 *
199 * Revision 4.5  1998/06/14 21:09:34  kardel
200 * Sun acc cleanup
201 *
202 * Revision 4.4  1998/06/13 12:00:38  kardel
203 * fix SYSV clock name clash
204 *
205 * Revision 4.3  1998/06/12 15:22:26  kardel
206 * fix prototypes
207 *
208 * Revision 4.2  1998/06/12 09:13:24  kardel
209 * conditional compile macros fixed
210 * printf prototype
211 *
212 * Revision 4.1  1998/05/24 09:39:51  kardel
213 * implementation of the new IO handling model
214 *
215 * Revision 4.0  1998/04/10 19:45:27  kardel
216 * Start 4.0 release version numbering
217 *
218 * from V3 1.8 log info deleted 1998/04/11 kardel
219 */
220