1 /* $NetBSD: clk_computime.c,v 1.7 2024/08/18 20:47:17 christos Exp $ */
2
3 #ifdef HAVE_CONFIG_H
4 # include <config.h>
5 #endif
6
7 #if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_COMPUTIME)
8 /*
9 * /src/NTP/ntp4-dev/libparse/clk_computime.c,v 4.10 2005/04/16 17:32:10 kardel RELEASE_20050508_A
10 *
11 * clk_computime.c,v 4.10 2005/04/16 17:32:10 kardel RELEASE_20050508_A
12 *
13 * Supports Diem's Computime Radio Clock
14 *
15 * Used the Meinberg clock as a template for Diem's Computime Radio Clock
16 *
17 * adapted by Alois Camenzind <alois.camenzind@ubs.ch>
18 *
19 * Copyright (c) 1995-2005 by Frank Kardel <kardel <AT> ntp.org>
20 * Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universitaet Erlangen-Nuernberg, Germany
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the above copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. Neither the name of the author nor the names of its contributors
31 * may be used to endorse or promote products derived from this software
32 * without specific prior written permission.
33 *
34 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
35 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
38 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44 * SUCH DAMAGE.
45 *
46 */
47
48 #include "ntp_fp.h"
49 #include "ntp_unixtime.h"
50 #include "ntp_calendar.h"
51 #include "ntp_stdlib.h"
52
53 #include "parse.h"
54
55 #ifndef PARSESTREAM
56 #include <stdio.h>
57 #else
58 #include "sys/parsestreams.h"
59 extern int printf (const char *, ...);
60 #endif
61
62 /*
63 * The Computime receiver sends a datagram in the following format every minute
64 *
65 * Timestamp T:YY:MM:MD:WD:HH:MM:SSCRLF
66 * Pos 0123456789012345678901 2 3
67 * 0000000000111111111122 2 2
68 * Parse T: : : : : : : rn
69 *
70 * T Startcharacter "T" specifies start of the timestamp
71 * YY Year MM Month 1-12
72 * MD Day of the month
73 * WD Day of week
74 * HH Hour
75 * MM Minute
76 * SS Second
77 * CR Carriage return
78 * LF Linefeed
79 *
80 */
81
82 static struct format computime_fmt =
83 {
84 {
85 {8, 2}, {5, 2}, {2, 2}, /* day, month, year */
86 {14, 2}, {17, 2}, {20, 2}, /* hour, minute, second */
87 {11, 2}, /* dayofweek, */
88 },
89 (const unsigned char *)"T: : : : : : : \r\n",
90 0
91 };
92
93 static parse_cvt_fnc_t cvt_computime;
94 static parse_inp_fnc_t inp_computime;
95
96 clockformat_t clock_computime =
97 {
98 inp_computime, /* Computime input handling */
99 cvt_computime, /* Computime conversion */
100 0, /* no PPS monitoring */
101 (void *)&computime_fmt, /* conversion configuration */
102 "Diem's Computime Radio Clock", /* Computime Radio Clock */
103 24, /* string buffer */
104 0 /* no private data (complete packets) */
105 };
106
107 /*
108 * parse_cvt_fnc_t cvt_computime
109 *
110 * convert simple type format
111 */
112 static u_long
cvt_computime(unsigned char * buffer,int size,struct format * format,clocktime_t * clock_time,void * local)113 cvt_computime(
114 unsigned char *buffer,
115 int size,
116 struct format *format,
117 clocktime_t *clock_time,
118 void *local
119 )
120 {
121
122 if (!Strok(buffer, format->fixed_string)) {
123 return CVT_NONE;
124 } else {
125 if (Stoi(&buffer[format->field_offsets[O_DAY].offset], &clock_time->day,
126 format->field_offsets[O_DAY].length) ||
127 Stoi(&buffer[format->field_offsets[O_MONTH].offset], &clock_time->month,
128 format->field_offsets[O_MONTH].length) ||
129 Stoi(&buffer[format->field_offsets[O_YEAR].offset], &clock_time->year,
130 format->field_offsets[O_YEAR].length) ||
131 Stoi(&buffer[format->field_offsets[O_HOUR].offset], &clock_time->hour,
132 format->field_offsets[O_HOUR].length) ||
133 Stoi(&buffer[format->field_offsets[O_MIN].offset], &clock_time->minute,
134 format->field_offsets[O_MIN].length) ||
135 Stoi(&buffer[format->field_offsets[O_SEC].offset], &clock_time->second,
136 format->field_offsets[O_SEC].length)) {
137 return CVT_FAIL | CVT_BADFMT;
138 } else {
139
140 clock_time->flags = 0;
141 clock_time->utcoffset = 0; /* We have UTC time */
142
143 return CVT_OK;
144 }
145 }
146 }
147
148 /*
149 * parse_inp_fnc_t inp_computime
150 *
151 * grab data from input stream
152 */
153 static u_long
inp_computime(parse_t * parseio,char ch,timestamp_t * tstamp)154 inp_computime(
155 parse_t *parseio,
156 char ch,
157 timestamp_t *tstamp
158 )
159 {
160 unsigned int rtc;
161
162 parseprintf(DD_PARSE, ("inp_computime(0x%p, 0x%x, ...)\n", (void*)parseio, ch));
163
164 switch (ch)
165 {
166 case 'T':
167 parseprintf(DD_PARSE, ("inp_computime: START seen\n"));
168
169 parseio->parse_index = 1;
170 parseio->parse_data[0] = ch;
171 parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
172 return PARSE_INP_SKIP;
173
174 case '\n':
175 parseprintf(DD_PARSE, ("inp_computime: END seen\n"));
176 if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
177 return parse_end(parseio);
178 else
179 return rtc;
180
181 default:
182 return parse_addchar(parseio, ch);
183 }
184 }
185
186 #else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_COMPUTIME) */
187 NONEMPTY_TRANSLATION_UNIT
188 #endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_COMPUTIME) */
189
190 /*
191 * clk_computime.c,v
192 * Revision 4.10 2005/04/16 17:32:10 kardel
193 * update copyright
194 *
195 * Revision 4.9 2004/11/14 15:29:41 kardel
196 * support PPSAPI, upgrade Copyright to Berkeley style
197 *
198 * Revision 4.6 1999/11/28 09:13:49 kardel
199 * RECON_4_0_98F
200 *
201 * Revision 4.5 1998/06/14 21:09:34 kardel
202 * Sun acc cleanup
203 *
204 * Revision 4.4 1998/06/13 12:00:38 kardel
205 * fix SYSV clock name clash
206 *
207 * Revision 4.3 1998/06/12 15:22:26 kardel
208 * fix prototypes
209 *
210 * Revision 4.2 1998/06/12 09:13:24 kardel
211 * conditional compile macros fixed
212 * printf prototype
213 *
214 * Revision 4.1 1998/05/24 09:39:51 kardel
215 * implementation of the new IO handling model
216 *
217 * Revision 4.0 1998/04/10 19:45:27 kardel
218 * Start 4.0 release version numbering
219 *
220 * from V3 1.8 log info deleted 1998/04/11 kardel
221 */
222