NetNews Usenet Archive 1992 #19

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Path: sparky!uunet!comp-sources-3b1 From: zebra!vern (Vernon C. Hoxie) Newsgroups: comp.sources.3b1 Subject: v02i029: NIST.timechk, version 2.1, Part01/02 Date: 4 Sep 1992 12:16:39 -0400 Organization: UUNET Communications Lines: 952 Sender: dhb@ftp.UU.NET Approved: dave@galaxia.network23.com Message-ID: <188257INN7jd@ftp.UU.NET> NNTP-Posting-Host: ftp.uu.net X-Checksum-Snefru: 41c2cca0 a782d1f2 eca4b6b8 ee982173 Submitted-by: zebra!vern (Vernon C. Hoxie) Posting-number: Volume 2, Issue 29 Archive-name: nistchk/part01 [ Hello Boys and Girls.. ] [ I have finally returned from my vacation and managed to wade my way all ] [ the way through my mailbox. This was the only source submitted during ] [ the month I was away, so source postings are now up to date. By the ] [ time you read this, the corrupted files in the osu/uunet archives should ] [ be corrected. ] [ Keep those source postings coming and maybe I will be encouraged to dig ] [ through my pile of floppies to find some more goodies for you all. ] [ Maybe Santa will bring you another set of Dave's nifty utilities! ] [ -- Dave ] Dave: This is revised version of NBS.timechk which is archived at osu as NBSchk.cpio.Z. There will be some confusion with the current NISTime.cpio.Z. That is from someone else. Vernon C. Hoxie {ncar,boulder}!scicom!zebra!vern 3975 W. 29th Ave. voice: 303-477-1780 Denver, Colo., 80212 uucp: 303-455-2670 ------------------------------- cut here ---------------------------------- #! /bin/sh # This is a shell archive. Remove anything before this line, then unpack # it by saving it into a file and typing "sh file". To overwrite existing # files, type "sh file -c". You can also feed this as standard input via # unshar, or by typing "sh <file", e.g.. If this archive is complete, you # will see the following message at the end: # "End of archive 1 (of 2)." # Contents: Files MANIFEST Makefile NIST.info NISTtime.h README # log.boot modem.c # Wrapped by vern@zebra on Thu Aug 27 11:06:30 1992 PATH=/bin:/usr/bin:/usr/ucb ; export PATH if test -f Files -a "${1}" != "-c" ; then echo shar: Will not over-write existing file \"Files\" else echo shar: Extracting \"Files\" $93 characters$ sed "s/^X//" >Files <<'END_OF_Files' XFiles XMANIFEST XMakefile XNIST.info XNISTtime.c XNISTtime.h XREADME Xcalc.c Xlog.boot Xmodem.c Xobm.c END_OF_Files if test 93 -ne `wc -c <Files`; then echo shar: \"Files\" unpacked with wrong size! fi # end of overwriting check fi if test -f MANIFEST -a "${1}" != "-c" ; then echo shar: Will not over-write existing file \"MANIFEST\" else echo shar: Extracting \"MANIFEST\" $683 characters$ sed "s/^X//" >MANIFEST <<'END_OF_MANIFEST' X File Name Archive # Description X----------------------------------------------------------- X Files 1 A list for producing a cpio file X MANIFEST 1 X Makefile 1 The cook book X NIST.info 1 Explaination of NIST time signals X NISTtime.c 2 The working section X NISTtime.h 1 Generic includes and variables X README 1 Substitute for a manual X calc.c 2 Update calculations X log.boot 1 To reset clocks when rebooting X modem.c 1 Interface to 'smart' modems X obm.c 2 Interface to 3b1 On Board Modem END_OF_MANIFEST if test 683 -ne `wc -c <MANIFEST`; then echo shar: \"MANIFEST\" unpacked with wrong size! fi # end of overwriting check fi if test -f Makefile -a "${1}" != "-c" ; then echo shar: Will not over-write existing file \"Makefile\" else echo shar: Extracting \"Makefile\" $2291 characters$ sed "s/^X//" >Makefile <<'END_OF_Makefile' X#sccs "@(#) NIST.time:Makefile 2.1" 8/27/92 X X# * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * X# * X# Copyright (c) July, 24, 1989, August 8, 1992 by Vernon C. Hoxie * X# * X# This source code may be freely distributed as long as this * X# copyright notice is included. No monetary charges should * X# be made in excess of the cost of copying and distribution. * X# * X# Any profits which might be derived from the sale of this * X# work must be shared with me. Other monetary contributions * X# will be gratefully accepted. * X# * X# Vernon C. Hoxie, zebra!vern, vern@zebra.alphacdc.com * X# * X# * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * X X X X# Comment the next line for operational version X# CFLAGS = -g -DDEBUG -DNOSET X X#Comment the next two lines for DEBUGing XCFLAGS = -v -O XLDFLAGS = -s X XLIBS = X XOBJS = calc.o NISTtime.o modem.o obm.o XTARGET = NIST.time XDEST = /etc XSHAREDLIB = /lib/crt0s.o /lib/shlib.ifile X X$(TARGET): $(OBJS) X $(LD) $(LDFLAGS) -o $(TARGET) $(OBJS) $(SHAREDLIB) X X$(OBJS): NISTtime.h Makefile X.c.o: X $(CC) $(CFLAGS) -c $< X X# You should check "log.boot" to see that it call the correct port. X# Also, only run this once or you will end up with a whole bunch of X# these in /etc/rc. Xboot: X cat log.boot >> /etc/rc X Xinstall: $(TARGET) X chmod 550 ${TARGET} X chgrp bin ${TARGET} X chown bin ${TARGET} X mv ${TARGET} ${DEST}/${TARGET} X XLINTFLAGS = -u -x XLINTLIB = XLINTOBJS = calc.c NISTtime.c modem.c obm.c Xlint: X lint $(LINTFLAGS) $(LINTLIB) $(LINTOBJS) X Xclean: X rm -f *.o core MANIFEST.BAK X Xclobber: clean X rm -rf kit X rm -f NIST.time NIST.log NIST.errs X XFiles: clobber X find . -print > Files X sort Files -o Files X Xcpio: X cpio -oBvcd < Files > NIST.cpio X rm -f NIST.cpio.Z X compress NIST.cpio X Xkit: X mkdir kit X makekit -m -s38k -n./kit/Part END_OF_Makefile if test 2291 -ne `wc -c <Makefile`; then echo shar: \"Makefile\" unpacked with wrong size! fi # end of overwriting check fi if test -f NIST.info -a "${1}" != "-c" ; then echo shar: Will not over-write existing file \"NIST.info\" else echo shar: Extracting \"NIST.info\" $5294 characters$ sed "s/^X//" >NIST.info <<'END_OF_NIST.info' X DESCRIPTION OF THE X AUTOMATED COMPUTER TELEPHONE SERVICE (ACTS) X X XThe following is transmitted (at 1200 Baud) after completion of the Xtelephone connection. X X ? = HELP X National Institute of Standards and Technology X Telephone Time Service X X D L D X MJD YR MO DA H M S ST S UT1 msADV <OTM> X 47999 90-04-18 21:39:15 50 0 +.1 045.0 UTC(NIST) * X 47999 90-04-18 21:39:16 50 0 +.1 045.0 UTC(NIST) * X 47999 90-04-18 21:39:17 50 0 +.1 045.0 UTC(NIST) * X 47999 90-04-18 21:39:18 50 0 +.1 045.0 UTC(NIST) * X 47999 90-04-18 21:39:19 50 0 +.1 037.6 UTC(NIST) # X 47999 90-04-18 21:39:20 50 0 +.1 037.6 UTC(NIST) # X etc..etc...etc....... X XUTC = Universal Time Coordinated, the official world time referred to the Xzero meridian. X_________________________________________________________________________ X XDST = Daylight savings time characters, valid for the continental U.S., are Xset as follows: X 00 = We are on standard time (ST). 50 = We are on DST. X 99 to 51 = Now on ST, go to DST when your local time is 2:00 am and the X count is 51. The count is decremented daily at 00 (UTC). X 49 to 01 = Now on DST, go to ST when your local time is 2:00 am and the X count is 01. The count is decremented daily at 00 (UTC). XThe two DST characters provide up to 48 days advance notice of a change in Xtime. The count remains at 00 or 50 at other times. X_________________________________________________________________________ X XLS = Leap second flag is set to "1" to indicate that a leap second is to be Xadded as 23:59:60 (UTC) on the last day of the current UTC month. The LS Xflag will be reset to "0" starting with 23:59:60 (UTC). The flag will Xremain on for the entire month before the second is added. Leap seconds Xare added as needed at the end of any month. Usually June and/or December Xare chosen. X X__________________________________________________________________________ X XDUT1 = Approximate difference between earth rotation time (UT1) and UTC, in Xsteps of 0.1 second. DUT1 = UT1 - UTC X___________________________________________________________________________ X XMJD = Modified Julian Date, often used to tag certain scientific data. X___________________________________________________________________________ X XThe full time format is sent at 1200 Baud, 8 bit, 1 stop, no parity. XThe format at 300 Baud is also 8 bit, 1 stop, no parity. XAt 300 Baud the MJD and DUT1 values are deleted and the Xtime is transmitted only on even seconds. X___________________________________________________________________________ X XMaximum on line time will be 56 seconds. If all lines are busy at any time, Xthe oldest call will be terminated if it has been on line more than 28 Xseconds, else, the call that first reaches 28 seconds will be terminated. X___________________________________________________________________________ X XCurrent time is valid at the "on-time" marker (OTM), either "*" or "#". XThe nominal on-time marker (*) will be transmitted 45 ms early to account Xfor the 8 ms required to send 1 character at 1200 Baud, plus an additional X7 ms for delay from NIST to the user, and approximately 30 ms "scrambler" Xdelay inherent in 1200 Baud modems. If the caller echoes all characters, XNIST will measure the round trip delay and advance the on-time marker so Xthat the midpoint of the stop bit arrives at the user on time. The amount Xof msADV will reflect the actual required advance in milliseconds and the XOTM will be a "#". The NIST system requires 4 or 5 consecutive delay Xmeasurements which are consistent before switching from "*" to "#". XIf the user has a 1200 Baud modem with the same internal delay as that used Xby NIST, then the "#" OTM should arrive at the user within +-2 ms of the Xcorrect time. However, NIST has studied different brands of 1200 Baud Xmodems and found internal delays from 24 ms to 40 ms and offsets of the X"#" OTM of +-10 ms. For many computer users, +-10 ms accuracy should be Xmore than adequate since many computer internal clocks can only be set with Xgranularity of 20 to 50 ms. In any case, the repeatability of the offset Xfor the "#" OTM should be within +-2 ms, if the dial-up path is reciprocal Xand the user doesn't change the brand or model of modem used. This should Xbe true even if the dial-up path on one day is a land-line of less than X40 ms (one way) and on the next day is a satellite link of 260 to 300 ms. XIn the rare event that the path is one way by satellite and the other way Xby land line with a round trip measurement in the range of 90 to 260 ms, Xthe OTM will remain a "*" indicating 45 ms advance. X___________________________________________________________________________ X XFor user comments write: XNIST-ACTS XTime and Frequency Division XMail Stop 524 X325 Broadway XBoulder, CO 80303 X XSoftware for setting (PC)DOS compatable machines is available Xon a 360-kbyte diskette for $35.00 from: XNIST Office of Standard Reference Materials XB311-Chemistry Bldg, NIST, Gaithersburg, MD, 20899, (301) 975-6776 X X-------------------------------------------------------------------------- X--------TIME CODE GENERATOR C END_OF_NIST.info if test 5294 -ne `wc -c <NIST.info`; then echo shar: \"NIST.info\" unpacked with wrong size! fi # end of overwriting check fi if test -f NISTtime.h -a "${1}" != "-c" ; then echo shar: Will not over-write existing file \"NISTtime.h\" else echo shar: Extracting \"NISTtime.h\" $4584 characters$ sed "s/^X//" >NISTtime.h <<'END_OF_NISTtime.h' X#sccs "@(#) NIST.time:NISTtime.h 2.1" 8/27/92 X X/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * X * * X * Copyright (c) July, 24, 1989, August 8, 1992 by Vernon C. Hoxie * X * * X * This source code may be freely distributed as long as this * X * copyright notice is included. No monetary charges should * X * be made in excess of the cost of copying and distribution. * X * * X * Any profits which might be derived from the sale of this * X * work must be shared with me. Other monetary contributions * X * will be gratefully accepted. * X * * X * Vernon C. Hoxie, zebra!vern, vern@zebra.alphacdc.com * X * * X * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ X X X X X#include <errno.h> X#include <fcntl.h> X#include <malloc.h> X#include <setjmp.h> X#include <stdio.h> X#include <termio.h> X#include <sys/ioctl.h> X#include <sys/signal.h> X#include <sys/param.h> X#include <sys/phone.h> X X#define DEVPATH "/dev/" X#define LCKPATH "/usr/spool/uucp/LCK.." X X /* Comment out the options you don't want. */ X#define UNIXPC /* Updates the real time clock also. */ X#define OBM /* If you want a 'ph0' or 'ph1' option */ X/* #define QUIET /* Turns the modem speaker off */ X#define TONE /* Sets OBM for Touch Tone dialing. */ X /* On a UNIXPC, you can have both OBM and EXTERNAL */ X#define EXTERNAL /* If you want a 'tty###' option */ X X/* Set these values appropiate for your system. The value for */ X/* INIT_BAUD is termio.h macro for the baud rate your modem uses for */ X/* the quiesent state. */ X/* RUN_BAUD is the speed the computer should use when talking to NIST. */ X/* RUN_CHAT is a series of commands to the modem for use during */ X/* the conversation. */ X X/* Set this to quiesent speed of your modem. B19200 works on my */ X/* TrailBlazer for 'uucico' but it has to be B9600 here. I don't */ X/* know why. */ X#define INIT_BAUD B9600 /* */ X X/* For modems set to autobaud, use these options. */ X#define RUN_BAUD B1200 /* */ X#define RUN_CHAT "ATS0=0S50=2S51=1S95=0\r\n" /* */ X X/* For modems lacked at 19200, use these options. */ X/* #define RUN_BAUD B19200 /* */ X/* #define RUN_CHAT "ATS0=0S50=2S51=5S95=0\r\n" /* */ X X/* You should be sure that all modems are set to not echo commands */ X/* during the run state. Try these settings for MICOM. */ X/* #define RUN_BAUD B1200 /* */ X/* #define RUN_CHAT "ATQ\r\n" /* */ X X/* There is a section in 'modem.c' which dials the number. This code */ X/* uses the ATDT sequence of commands. If your modem requires some */ X/* other protocol, the code will have to be altered. */ X X/* This is long distance number, for Local calls use 494-4774 */ X/* Notes to users who may require specal dialing sequences such */ X/* as needed on PBX's: */ X/* The OBM uses 'phone(7)'. Refer to the 'phone(7)' manual, page 4, */ X/* for special commands. The trailing '@' is compiled in. */ X X/* #define PHNUM "13034944774" /* */ X#define PHNUM "4944774" /* */ X X /* Comment this out if you don't have a 'uugetty' */ X /* running. It is not needed if you use a call */ X /* out only line. It is gennerally required for */ X /* the OBM. */ X#define DUMPGETTY /* */ X X#ifdef DEBUG X/* #define NOSET /* Disable corrections during DEBUG */ X#define LOG_NAME "NIST.log" X#define LOG_ERRS "NIST.errs" X#define TMP_ERRS "NIST.tmp" X#else X#define LOG_NAME "/usr/adm/NIST.log" X#define LOG_ERRS "/usr/adm/NIST.errs" X#define TMP_ERRS "/tmp/NIST" X#endif X#define LOG_SIZE 23 /* size in lines ( One full screen ) */ X#define ERR_SIZE 2048 /* 2048 size in bytes */ X Xint tiofd; Xint hasLock; Xint boot; Xchar lck_file[ 30 ]; Xchar nist_file[ 30 ]; Xjmp_buf place; Xstruct termio old_getty; X Xextern char *sys_errlist; Xextern int errno; X X#ifdef OBM Xstruct updata old_phset; X#endif X X#ifdef DUMPGETTY Xchar had_getty; X#endif END_OF_NISTtime.h if test 4584 -ne `wc -c <NISTtime.h`; then echo shar: \"NISTtime.h\" unpacked with wrong size! fi # end of overwriting check fi if test -f README -a "${1}" != "-c" ; then echo shar: Will not over-write existing file \"README\" else echo shar: Extracting \"README\" $9465 characters$ sed "s/^X//" >README <<'END_OF_README' X This program calls the National Institute of Standards and XTechnology ( NIST ) in Boulder, Colorado. It accesses their modem which Xtransmits precision time in ASCII format. Eight samples of the time Xdifferences are collected and the average difference is calculated. The Xsystem software time clock and the hardware Real Time Clock ( RTC ) are Xthen corrected by that average amount. X X When invoked with the '-i' ( for initialize ), the first sample Xis used to set the complete date. Eight samples are then collected to Xrefine the seconds value. The '-c' ( for correction ) assumes that the Xclock is correct to the nearest day, will only make corrections to Xhours, minutes and seconds. X X Although the NIST data is accurate to milli-seconds, corrections Xare made only to one second accuracy. NIST does have a program which Xwill provide the fullest accuracy possible. This is available via FTP Xfrom them. More information about this may be obtained from the Time Xand Frequency Division of the National Institute of Standards and XTechnology. Their phone number is 1-303-497-3276. X X This program is intended to be run from the '/usr/lib/crontab' Xwith an entry of: Xmm hh * * * /bin/su root % /etc/NIST.time -c tty### X Xor: Xmm hh * * * /bin/su root % /etc/NIST.time -c ph# X Xwhere 'mm' and 'hh' are minutes and hours of your choice. If experience Xshows that your clock is accurate over longer periods, appropriate Xrevisions to this entry can be made. See cron(1M). X X I have tried to implement this so that it will create the least Xdisturbance to the 'cron' controlled functions. You should avoid Xscheduling anything in the same minute or the minute following X'NIST.time'. X X Every time the program is run, an entry is made into the file X"/usr/adm/NIST.log". The size of this log is limited to 23 lines which Xis one screen full on the 3b1 when called by more(1) . The new entries Xare made to the top of the page and the oldest is deleted. Entries are Xof the form: X XSat Aug 8 09:23:44 1992, Sys. Corr: -2 sec. RTC Corr: -1 sec. 50 dst X XThe initial date and time are the time prior to correction of the Xclocks. Following are the corrections to the System clock and RTC. In Xthis example, the system clock was 2 seconds fast and was corrected by Xminus 2 seconds. The last entry is merely a notation copied from the XNIST data. Read the NIST.info files to understand the meaning of this Xentry. X X Error messages are logged in "/usr/adm/NIST.errs". This file is Xmaintained at less than 2024 bytes in reverse chronological order. XHopefully they are sufficient to explain failures. X X The shell script. 'log.boot', is included if you want to reset Xyour clock when you reboot. It should be placed as the very last Xitem in '/etc/rc'. This gives the user the option to call or not call Xfor a time correction. When the user opts to call the NIST, the program Xwill run in the background with 'nohup' so that he/she can proceed Xthrough the login process while the corrections to the clock are being Xmade. This is particularily helpful if the hardware clock battery has Xgone dead. X X Installation of this feature is not part of the "make install" Xscript. You can install it with this command: X$ cat log.boot >> /etc/rc X X************************** Reference Manual ************************* X X Command line options are: X X -c This compares the system time with the time received X from NIST. Corrections are parsed at 30 seconds per X minute. This is the option to use from cron. X X -i This zeroes the system time and resets it with the X information received from NIST. This can be run in X '/etc/rc' during boot or from the shell by 'su'. X It is intended for systems with dead batteries for X the clock. See the file "log.boot" for a recommended X script. X X tty### This field should contain the device to which a modem X ph# is connected to make the call to NIST. X XNote: Lenny Tropiano's 'dstconvert' should be installed to correct the Xdate which the spring daylight savings time is made. X XCAUTION: The use of 'ph0' or 'ph1' must agree with the way your system Xis configured from the "Install" window. If you have a single line and Xselect 'ph0' for 'NIST.time' you are OK. If you have two lines and Xhave the system configured for data on 'ph1' and 'NIST.time' Xcalls out on 'ph1', you are OK. But if you have the system configured Xwith 'ph1' as data and you call 'NIST.time' with 'ph0', you will find Xtrouble, the 'phtoggle(1)' used in this program will toggle 'ph1' to XVOICE instead of toggling 'ph0' to DATA. X XTesting: X X If the beginning of the Makefile is changed from: X X#CFLAGS = -g -DDEBUG -DNOSET X XCFLAGS = -v -O XLDFLAGS = -s X X to: X XCFLAGS = -g -DDEBUG -DNOSET X X#CFLAGS = -v -O X#LDFLAGS = -s X X Xthe result will be writen to the NIST.log file in the current Xdirectory. Error messages will be writen to NIST.errs, also in the Xcurrent directory. Additional 'debugging' messages will be printed to Xthe screen. The test program must be run by 'su' because of the parts Xwhich dump the 'uugetty'. X X Corrections to the clocks will be made in DEBUG mode if the XNOSET flag in 'time.h' is commented out and deleted from the Makefile. X X This was designed for possible use on other systems so some of Xthe complexity is superfluous. For instance, 'geton.sh' and 'getoff.sh' Xcould have been used instead of the 'dump_getty' function. Also, the Xcompile options to exclude the OBM add to the confusion. X X If you are not using a 'uugetty' on the port, make the appropriate Xchanges to the #defines in 'NIST.time.h', then the testing procedure Xmay be run in 'user' mode. Operations with the OBM always require you Xto be 'root' durinf testing/ X XInstallation: X XThe options in 'NIST.time.h' are: X X DEVPATH, The pathname to where where your device drivers are Xstored. X X LCKPATH, The pathname and file prefix to where the uucp lock Xfiles are kept. X X UNIXPC, the includes code to update the Real Time Clock ( RTC ) Xas well as systime(2). Other systems which require special commands to Xchange a hardware clocks will have to make their own modifications to Xthe code. X X OBM, this allows the selection of either "ph0" or "ph1" as the Xport from a Unix-pc. You must have the system configured for the line you Xtell 'NIST.time' to use. X X QUIET, only pertinent to the On Board Modem for the UnixPc. XCauses the call to be made without using the system speaker. X X EXTERNAL, this allows you to select a port "/dev/tty###" for Xuse with an external modem. X X TRAILBLAZER, the 'chat' script in 'modem.c' is set up for a XTelebit TrailBlazer. You will have to make your own revisions if you Xare using another make or model. Send these revisions to me so that Xthey may be included in future releases. Options are included for Xoperations with the computer/modem baud rate locked at 19200. X X MICOM, issues a command to wake up the modem. See the comments Xin time.h. X X DUMPGETTY, this removes a 'uugetty' that might be running on the Xselected external port. It is not needed if the port is 'call out' only. XIt is coded in for the OBM operation. When included, the program may be Xrun only by 'su' whether compiled with DEBUG set or not. X X NOSET, inhibits corrections to the clock. It is only effective Xwhen the -DDEBUG option is set in the 'Makefile'. X X The 'Makefile' references the Unix-pc calls to the systems Xshared library. You may have to revise these to the libraries which are Xused on your system. X XAcknowledgments: X X The present incarnation includes a 'Makefile" generated by Xprogram called 'mmk'. It was kindly supplied to me by Tanya Katz. XAn 'install:' option has been added. X X There is also a function called 'do_getty()' which is a Xvariation of a program posted to the net by John Milton. X X A handy little function called 'mpause()' is a direct steal from XKermit. Other parts of this program were also inspired by the Kermit Xrelease. ( Check this in 'utils.c' for the clock freq of your system. ) X X Augustine Cano provided the chat script for using a WORLDBLAZER Xwith the interface speed locked to 19200. X XTo Do: X X Include options for other modems. (Depending upon feedback from X other users). X Someone else to port it to versions of Unix other than SysV. X XRevised Jan 3, 1990. X1. Deleted reference to options for daylight savings time date X changes. See the comments above about 'dstconvert()'. X2. Changed location of 'log.boot' reccomendation from '/etc/daemons' X to '/etc/rc'. X XRevised May 30, 1990 X1. Added reference to MICOM and ACTIVE. X2. Rewrote part pf open_tty() per suggestion from Karl Swartz ( ditka ). X XRevised July 26, 1991 X1. Added sleep(2) to modem.c and obm.c. X2. Revised some of the error messages. X3. Revised LCK.. file sequence per suggestion from Karl Swartz. X3. Rewrote trunc_errs(). X XVersion 2.0, August 8, 1992. X1. Major rewrite of the OBM run_obm() sequence. X2. Made only one 'struct termio'. Revisons made at appropiate time X with the code. X3. Changed the reading of data from reading at a line at time to X reading single characters and forming the test line within the X code. This is because of problems with the OBM reading correctly. X4. Also changed the read technique in 'modem.c' for consistency. X4. Changed the name from "NBS.timechk" to "NIST.time" in accordance X with the name change of the facility. Other references to NBS X also changed. X XVernon C. Hoxie {ncar,nbires,boulder,isis}!scicom!zebra!vern X3975 W. 29th Ave. voice: 303-477-1780 XDenver, Colo., 80212 ( TB+ ) uucp: 303-455-2670 END_OF_README if test 9465 -ne `wc -c <README`; then echo shar: \"README\" unpacked with wrong size! fi # end of overwriting check fi if test -f log.boot -a "${1}" != "-c" ; then echo shar: Will not over-write existing file \"log.boot\" else echo shar: Extracting \"log.boot\" $655 characters$ sed "s/^X//" >log.boot <<'END_OF_log.boot' X# This can be added to the end of your '/etc/rc' script to query the X# user about calling NIST for a time check during reboot. It will X# make the call in the background while you continue to login. X# Revised May 30, 1990 X# Revised Aug 8, 1992 X Xmessage -i "Do you wish to call the National Institute X of Standards and Technology to reset the time?\n XEnter <Cancel> to cancel the call. XEnter <Return> to make the call. " Xif [ $? -eq 0 ] Xthen X nohup /etc/NIST.time -i ph0 & Xfi XTMPFILE=/usr/adm/old.log XLOGFILE=/usr/adm/NIST.log Xmv $LOGFILE $TMPFILE Xnow=`date '+%a %h %d %H:%M:%S 19%y'` Xecho "$now, Rebooted." > $LOGFILE Xcat $TMPFILE >> $LOGFILE Xrm $TMPFILE END_OF_log.boot if test 655 -ne `wc -c <log.boot`; then echo shar: \"log.boot\" unpacked with wrong size! fi chmod +x log.boot # end of overwriting check fi if test -f modem.c -a "${1}" != "-c" ; then echo shar: Will not over-write existing file \"modem.c\" else echo shar: Extracting \"modem.c\" $5396 characters$ sed "s/^X//" >modem.c <<'END_OF_modem.c' X#sccs "@(#) NIST.time:modem.c 2.1" 8/27/92 X X/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * X * * X * Copyright (c) July, 24, 1989, August 8, 1992 by Vernon C. Hoxie * X * * X * This source code may be freely distributed as long as this * X * copyright notice is included. No monetary charges should * X * be made in excess of the cost of copying and distribution. * X * * X * Any profits which might be derived from the sale of this * X * work must be shared with me. Other monetary contributions * X * will be gratefully accepted. * X * * X * Vernon C. Hoxie, zebra!vern, vern@zebra.alphacdc.com * X * * X * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ X X X X#include "NISTtime.h" X Xextern struct termio my_getty; X X#ifdef EXTERNAL X X /* Return values from this function have the following meaning: */ X /* -1 System failure, abort. */ X /* 0 Success, proceed to perform 'update()' */ X /* NN A failure in the communication link. The value */ X /* returned to 'main()' signifies the amount of */ X /* seconds to sleep before retrying. */ X Xint run_mod( dev ) Xchar *dev; X{ X extern void sig_sleep( ); X extern void sig_timeout( ); X extern int lock_it( ); X extern int open_tty( ); X#ifdef DUMPGETTY X extern int do_getty( ); X#endif X int chat(); X int c_flag; X X int j, k; X char buf[85]; X char *err_msg; X tiofd = 0; X X if (( j = lock_it( dev )) != 0 ) X { X printf( "lock_it() returned %d\n", j ); X return( j ); X } X#ifdef DUMPGETTY X if (( j = do_getty( dev, ':' )) < 0 ) return( -1 ); X#endif /* DUMPGETTY */ X X if (( tiofd = open_tty( dev ) ) < 0 ) return( -1 ); X X err_msg = "Setting up modem.\n"; X alarm( 20 ); X signal( SIGALRM, sig_timeout ); X if (( j = setjmp( place ) ) != 0 ) X { X fprintf( stderr, err_msg ); X return( 5 ); X } X X/* Start of modem specific sequences, modify to your own modem */ X X /* Sends "A's" for the modem to sync on */ X X for ( j = 0; j < 5; j++ ) X { X write( tiofd, "A\n\r", 4 ); X mpause( 5 ); X } X#ifdef DEBUG X printf( "Running first 'AT OK'.\n" ); X#endif X X if (( j = chat( 5, "AT\r\n", "OK" ) ) != 0 ) return( j ); X X err_msg = "Changing speed.\n"; X#ifdef DEBUG X printf( "Setting speed to %o.\n", RUN_BAUD ); X#endif X if (( j = chat( 5, RUN_CHAT, "OK" ) ) != 0 ) X return( j ); X c_flag = my_getty.c_cflag & ~(CBAUD | CLOCAL ); X X my_getty.c_cflag = c_flag | RUN_BAUD; X if (( ioctl( tiofd, TCSETA, &my_getty ) ) < 0 ) X { X fprintf( stderr, "run_mod(), TCSETA my_getty, %s\n", X sys_errlist[errno] ); X return( -1 ); X } X X#ifdef DEBUG X printf( "Dialing.\n" ); X#endif X X mpause( 500 ); /* 1/2 seconds */ X err_msg = "Dialing modem.\n"; X strcat( strcat (strcpy( buf, "ATDTW" ), PHNUM ), "\r\n" ); X X /* Key on the first word received X * instead of CONNECT from the modem. */ X if (( j = chat( 35, buf, "HELP" )) != 0 ) X return( j ); X X#ifdef DEBUG X printf( "Starting to read.\n" ); X#endif X alarm( 20 ); X if (( j = setjmp( place ) ) != 0 ) { X fprintf( stderr, err_msg ); X return( 5 ); X } X X err_msg = "Reading modem.\n"; X for( k = 0; k < 8; ) { X register char *p, *q; X X q = buf + sizeof( buf ); X for ( p = buf; p < q; *p++ = '\0' ); X for ( p = buf; *p != '\n' && p < q; ) { X read( tiofd, p, 1 ); X if (( *p >= ' ' && *p <= '~' )) *p++; X } X#ifdef DEBUG X if (( j = p - buf ) > 0 ) X printf( "%d %d >%c< %s", k, j, *(p-1), buf ); X#endif X for ( q = buf; q < p; q++ ) { X char *bpt, *npt; X X bpt = q; X npt = "NO CARRIER" ; X while ( *bpt == *npt ) bpt++, npt++; X if ( ! *npt ) X { X fprintf( stderr, "Lost Carrier\n" ); X return( 20 ); X } X } X if ( *--p == '*' || *p == '#' ) k += get_data( buf ); X } X return( 0 ); X} X Xint chat( secs, tx, rx ) Xint secs; Xchar *tx, *rx; X{ X int j; X char buf[30]; X char *busy = "BUSY"; X char *expect, *bpt, *pbusy; X X alarm( secs ); X if (( j = write( tiofd, tx, strlen( tx ) )) < 0 ) X { X fprintf( stderr, "Couldn't write to modem.\n" ); X return( -1 ); X } X#ifdef DEBUG X printf( "Send: >%s<\nExpect: >%s<\n", tx, rx ); X#endif X X pbusy = busy; X expect = rx; X while ( 1 ) X { X j = read( tiofd, buf, sizeof( buf )); X if ( j < 0 ) X { X fprintf( stderr, "Couldn't read from modem.\n" ); X return( -1 ); X } X#ifdef DEBUG X if ( j > 0 ) printf( "j = %d bytes, Got: >%s<\n", j, buf ); X#endif X bpt = buf; X while ( j > 0 ) X { X if ( *bpt == *expect ) expect++; X else expect = rx; X if ( ! *expect ) return( 0 ); X /* Test for "BUSY" */ X if ( *bpt == *pbusy ) pbusy++; X else pbusy = busy; X if ( ! *pbusy ) X { X fprintf( stderr, X "Line busy, wait 3 min.\n"); X return( 180 ); X } X bpt++; X j--; X } X } X} /* chat() */ X X#else X /* Dummy if compiled as OBM only */ Xint run_mod( dev ) Xchar *dev; X X{ X fprintf( stderr, X "You need to set the EXTERNAL flag in NIST.time.h' and recompile \n" ); X fprintf( stderr, X "in order to use a modem connected to the '/dev/%s port.\n", dev ); X return( 0 ); X} X X#endif /* EXTERNAL */ X END_OF_modem.c if test 5396 -ne `wc -c <modem.c`; then echo shar: \"modem.c\" unpacked with wrong size! fi # end of overwriting check fi echo shar: End of archive 1 $of 2$. cp /dev/null ark1isdone MISSING="" for I in 1 2 ; do if test ! -f ark${I}isdone ; then MISSING="${MISSING} ${I}" fi done if test "${MISSING}" = "" ; then echo You have unpacked both archives. rm -f ark[1-9]isdone else echo You still need to unpack the following archives: echo " " ${MISSING} fi ## End of shell archive. exit 0 -- Vernon C. Hoxie {ncar,boulder}!scicom!zebra!vern 3975 W. 29th Ave. voice: 303-477-1780 Denver, Colo., 80212 uucp: 303-455-2670 -- David H. Brierley Home: dave@galaxia.network23.com; Work: dhb@quahog.ssd.ray.com Send comp.sources.3b1 submissions to comp-sources-3b1@galaxia.network23.com %% Can I be excused, my brain is full. **