194 lines
4.9 KiB
C
194 lines
4.9 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#if defined(REFCLOCK) && defined(CLOCK_PARSE) && defined(CLOCK_COMPUTIME)
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/*
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* /src/NTP/ntp-4/libparse/clk_computime.c,v 4.6 1999/11/28 09:13:49 kardel RELEASE_19991128_A
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*
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* clk_computime.c,v 4.6 1999/11/28 09:13:49 kardel RELEASE_19991128_A
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*
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* Supports Diem's Computime Radio Clock
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*
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* Used the Meinberg clock as a template for Diem's Computime Radio Clock
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*
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* adapted by Alois Camenzind <alois.camenzind@ubs.ch>
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*
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* Copyright (C) 1992-1998 by Frank Kardel
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* Friedrich-Alexander Universität Erlangen-Nürnberg, Germany
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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*/
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#include "ntp_fp.h"
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#include "ntp_unixtime.h"
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#include "ntp_calendar.h"
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#include "ntp_stdlib.h"
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#include "parse.h"
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#ifndef PARSESTREAM
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#include <stdio.h>
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#else
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#include "sys/parsestreams.h"
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extern void printf P((const char *, ...));
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#endif
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/*
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* The Computime receiver sends a datagram in the following format every minute
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*
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* Timestamp T:YY:MM:MD:WD:HH:MM:SSCRLF
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* Pos 0123456789012345678901 2 3
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* 0000000000111111111122 2 2
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* Parse T: : : : : : : rn
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*
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* T Startcharacter "T" specifies start of the timestamp
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* YY Year MM Month 1-12
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* MD Day of the month
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* WD Day of week
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* HH Hour
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* MM Minute
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* SS Second
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* CR Carriage return
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* LF Linefeed
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*
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*/
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static struct format computime_fmt =
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{
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{
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{8, 2}, {5, 2}, {2, 2}, /* day, month, year */
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{14, 2}, {17, 2}, {20, 2}, /* hour, minute, second */
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{11, 2}, /* dayofweek, */
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},
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(const unsigned char *)"T: : : : : : : \r\n",
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0
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};
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static u_long cvt_computime P((unsigned char *, int, struct format *, clocktime_t *, void *));
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static unsigned long inp_computime P((parse_t *, unsigned int, timestamp_t *));
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clockformat_t clock_computime =
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{
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inp_computime, /* Computime input handling */
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cvt_computime, /* Computime conversion */
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0, /* no PPS monitoring */
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(void *)&computime_fmt, /* conversion configuration */
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"Diem's Computime Radio Clock", /* Computime Radio Clock */
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24, /* string buffer */
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0 /* no private data (complete pakets) */
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};
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/*
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* cvt_computime
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*
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* convert simple type format
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*/
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static u_long
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cvt_computime(
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unsigned char *buffer,
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int size,
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struct format *format,
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clocktime_t *clock_time,
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void *local
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)
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{
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if (!Strok(buffer, format->fixed_string)) {
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return CVT_NONE;
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} else {
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if (Stoi(&buffer[format->field_offsets[O_DAY].offset], &clock_time->day,
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format->field_offsets[O_DAY].length) ||
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Stoi(&buffer[format->field_offsets[O_MONTH].offset], &clock_time->month,
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format->field_offsets[O_MONTH].length) ||
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Stoi(&buffer[format->field_offsets[O_YEAR].offset], &clock_time->year,
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format->field_offsets[O_YEAR].length) ||
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Stoi(&buffer[format->field_offsets[O_HOUR].offset], &clock_time->hour,
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format->field_offsets[O_HOUR].length) ||
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Stoi(&buffer[format->field_offsets[O_MIN].offset], &clock_time->minute,
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format->field_offsets[O_MIN].length) ||
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Stoi(&buffer[format->field_offsets[O_SEC].offset], &clock_time->second,
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format->field_offsets[O_SEC].length)) {
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return CVT_FAIL | CVT_BADFMT;
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} else {
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clock_time->flags = 0;
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clock_time->utcoffset = 0; /* We have UTC time */
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return CVT_OK;
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}
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}
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}
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/*
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* inp_computime
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*
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* grep data from input stream
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*/
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static u_long
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inp_computime(
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parse_t *parseio,
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unsigned int ch,
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timestamp_t *tstamp
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)
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{
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unsigned int rtc;
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parseprintf(DD_PARSE, ("inp_computime(0x%lx, 0x%x, ...)\n", (long)parseio, ch));
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switch (ch)
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{
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case 'T':
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parseprintf(DD_PARSE, ("inp_computime: START seen\n"));
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parseio->parse_index = 1;
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parseio->parse_data[0] = ch;
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parseio->parse_dtime.parse_stime = *tstamp; /* collect timestamp */
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return PARSE_INP_SKIP;
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case '\n':
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parseprintf(DD_PARSE, ("inp_computime: END seen\n"));
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if ((rtc = parse_addchar(parseio, ch)) == PARSE_INP_SKIP)
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return parse_end(parseio);
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else
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return rtc;
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default:
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return parse_addchar(parseio, ch);
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}
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}
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#else /* not (REFCLOCK && CLOCK_PARSE && CLOCK_COMPUTIME) */
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int clk_computime_bs;
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#endif /* not (REFCLOCK && CLOCK_PARSE && CLOCK_COMPUTIME) */
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/*
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* clk_computime.c,v
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* Revision 4.6 1999/11/28 09:13:49 kardel
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* RECON_4_0_98F
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*
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* Revision 4.5 1998/06/14 21:09:34 kardel
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* Sun acc cleanup
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*
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* Revision 4.4 1998/06/13 12:00:38 kardel
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* fix SYSV clock name clash
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*
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* Revision 4.3 1998/06/12 15:22:26 kardel
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* fix prototypes
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*
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* Revision 4.2 1998/06/12 09:13:24 kardel
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* conditional compile macros fixed
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* printf prototype
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*
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* Revision 4.1 1998/05/24 09:39:51 kardel
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* implementation of the new IO handling model
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*
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* Revision 4.0 1998/04/10 19:45:27 kardel
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* Start 4.0 release version numbering
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*
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* from V3 1.8 log info deleted 1998/04/11 kardel
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*/
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