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 (at) 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 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 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
Indexes created Thu Oct 08 00:26:19 UTC 2026