Agreed, this would be best. There was a suggestion a GSoC person could do it (though I'm willing to roll up my sleeves if necessary).
-- Cheers, Cy Schubert <cy.schub...@komquats.com> or <cy.schub...@cschubert.com> FreeBSD UNIX: <c...@freebsd.org> Web: http://www.FreeBSD.org The need of the many outweighs the greed of the few. In message <8154492e-c29e-41b1-a13b-34e33586d...@bsdimp.com>, Warner Losh write s: > > > --Apple-Mail=_60572A67-97E7-4200-AEF6-88DC6354712B > Content-Transfer-Encoding: quoted-printable > Content-Type: text/plain; > charset=utf-8 > > Until the next leap second=E2=80=A6. It would be better to just > always try to grab the latest one=E2=80=A6 Can we put something > in periodic to do that so users that have releases > that are older than 6 months aren=E2=80=99t screwed? > > Warner > > > On Oct 16, 2015, at 8:04 AM, Cy Schubert <c...@freebsd.org> wrote: > >=20 > > Author: cy > > Date: Fri Oct 16 14:04:16 2015 > > New Revision: 289421 > > URL: https://svnweb.freebsd.org/changeset/base/289421 > >=20 > > Log: > > Add default leap-seconds file. This should help ntp networks get the > > leap second date correct > >=20 > > Updates to the file can be obtained from ftp://time.nist.gov/pub/ or > > ftp://tycho.usno.navy.mil/pub/ntp/. > >=20 > > Suggested by: dwmalone > > Reviewed by: roberto, dwmalone, delphij > > Approved by: roberto > > MFC after: 1 week > >=20 > > Added: > > head/etc/ntp/ > > head/etc/ntp/Makefile (contents, props changed) > > head/etc/ntp/leap-seconds (contents, props changed) > > Modified: > > head/etc/Makefile > > head/etc/mtree/BSD.var.dist > > head/etc/ntp.conf > >=20 > > Modified: head/etc/Makefile > > = > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D > > --- head/etc/Makefile Fri Oct 16 12:53:22 2015 (r289420) > > +++ head/etc/Makefile Fri Oct 16 14:04:16 2015 (r289421) > > @@ -240,6 +240,9 @@ distribution: > > ${_+_}cd ${.CURDIR}/defaults; ${MAKE} install > > ${_+_}cd ${.CURDIR}/devd; ${MAKE} install > > ${_+_}cd ${.CURDIR}/gss; ${MAKE} install > > +.if ${MK_NTP} !=3D "no" > > + ${_+_}cd ${.CURDIR}/ntp; ${MAKE} install > > +.endif > > ${_+_}cd ${.CURDIR}/periodic; ${MAKE} install > > .if ${MK_PKGBOOTSTRAP} !=3D "no" > > ${_+_}cd ${.CURDIR}/pkg; ${MAKE} install > >=20 > > Modified: head/etc/mtree/BSD.var.dist > > = > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D > > --- head/etc/mtree/BSD.var.dist Fri Oct 16 12:53:22 2015 = > (r289420) > > +++ head/etc/mtree/BSD.var.dist Fri Oct 16 14:04:16 2015 = > (r289421) > > @@ -46,6 +46,8 @@ > > .. > > ipf mode=3D0700 > > .. > > + ntp mode=3D0700 > > + .. > > pkg > > .. > > ports > >=20 > > Modified: head/etc/ntp.conf > > = > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D > > --- head/etc/ntp.conf Fri Oct 16 12:53:22 2015 (r289420) > > +++ head/etc/ntp.conf Fri Oct 16 14:04:16 2015 (r289421) > > @@ -77,3 +77,8 @@ restrict 127.127.1.0 > > # > > #server 127.127.1.0 > > #fudge 127.127.1.0 stratum 10 > > + > > +# See = > http://support.ntp.org/bin/view/Support/ConfiguringNTP#Section_6.14. > > +# for documentation regarding leapfile. Updates to the file can be = > obtained > > +# from ftp://time.nist.gov/pub/ or = > ftp://tycho.usno.navy.mil/pub/ntp/. > > +leapfile "/etc/ntp/leap-seconds" > >=20 > > Added: head/etc/ntp/Makefile > > = > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D > > --- /dev/null 00:00:00 1970 (empty, because file is newly added) > > +++ head/etc/ntp/Makefile Fri Oct 16 14:04:16 2015 = > (r289421) > > @@ -0,0 +1,10 @@ > > +# $FreeBSD$ > > + > > +NO_OBJ=3D > > + > > +FILES=3D leap-seconds > > + > > +FILESDIR=3D /etc/ntp > > +FILESMODE=3D 644 > > + > > +.include <bsd.prog.mk> > >=20 > > Added: head/etc/ntp/leap-seconds > > = > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D > > --- /dev/null 00:00:00 1970 (empty, because file is newly added) > > +++ head/etc/ntp/leap-seconds Fri Oct 16 14:04:16 2015 = > (r289421) > > @@ -0,0 +1,119 @@ > > +# > > +# $FreeBSD$ > > +# > > +# ATOMIC TIME. > > +# The Coordinated Universal Time (UTC) is the reference time scale = > derived > > +# from The "Temps Atomique International" (TAI) calculated by the = > Bureau > > +# International des Poids et Mesures (BIPM) using a worldwide = > network of atomic > > +# clocks. UTC differs from TAI by an integer number of seconds; it = > is the basis > > +# of all activities in the world. > > +# > > +# > > +# ASTRONOMICAL TIME (UT1) is the time scale based on the rate of = > rotation of the earth. > > +# It is now mainly derived from Very Long Baseline Interferometry = > (VLBI). The various > > +# irregular fluctuations progressively detected in the rotation = > rate of the Earth lead > > +# in 1972 to the replacement of UT1 by UTC as the reference time = > scale. > > +# > > +# > > +# LEAP SECOND > > +# Atomic clocks are more stable than the rate of the earth = > rotatiob since the later > > +# undergoes a full range of geophysical perturbations at various = > time scales (lunisolar > > +# and core-mantle torques,atmospheric and oceanic effetcs, ...) > > +# Leap seconds are needed to keep the two time scales in = > agreement, i.e. UT1-UTC smaller > > +# than 0.9 second. So, when necessary a "leap second" is = > introduced in UTC. > > +# Since the adoption of this system in 1972 it has been necessary = > to add 26 seconds to UTC, > > +# firstly due to the initial choice of the value of the second = > (1/86400 mean solar day of > > +# the year 1820) and secondly to the general slowing down of the = > Earth's rotation. It is > > +# theorically possible to have a negative leap second (a second = > removed from UTC), but so far, > > +# all leap seconds have been positive (a second has been added to = > UTC). Based on what we know about the earth's rotation, > > +# it is unlikely that we will ever have a negative leap second. > > +# > > +# > > +# HISTORY > > +# The first leap second was added on June 30, 1972. Until 2000, it = > was necessary in average to add a leap second at a rate > > +# of 1 to 2 years. Since 2000, due to the fact that the earth rate = > of rotation is accelerating, leap seconds are introduced > > +# with an average frequency of 3 to 4 years. > > +# > > +# > > +# RESPONSABILITY OF THE DECISION TO INTRODUCE A LEAP SECOND IN UTC > > +# The decision to introduce a leap second in UTC is the = > responsibility of the Earth Orientation Center of > > +# the International Earth Rotation and reference System Service = > (IERS). This center is located at Paris > > +# Observatory. According to international agreements, leap second = > date have to occur at fixed date : > > +# first preference is given to the end of December and June, and = > second preference at the end of March > > +# and September. Since the system was introduced in 1972, only = > dates in June and December were used. > > +# > > +# Questions or comments to: > > +# Daniel Gambis, daniel.gam...@obspm.fr > > +# Christian Bizouard: christian.bizou...@obspm.fr > > +# Earth orientation Center of the IERS > > +# Paris Observatory, France > > +# > > +# > > +# > > +# VALIDITY OF THE FILE > > +# It is important to express the validity of the file. These next = > two dates are > > +# given in units of seconds since 1900.0. > > +# > > +# 1) Last update of the file. > > +# > > +# Updated through IERS Bulletin C = > (ftp://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat) > > +# > > +# The following line shows the last update of this file in NTP = > timestamp: > > +# > > +#$ 3645216000 > > +# > > +# 2) Expiration date of the file given on a semi-annual basis: = > last June or last December > > +# > > +# File expires on 28 December 2015 > > +# > > +# Expire date in NTP timestamp: > > +# > > +#@ 3660249600 > > +# > > +# > > +# LIST OF LEAP SECONDS > > +# NTP timestamp (X parameter) is the number of seconds since = > 1900.0 > > +# > > +# MJD: The Modified Julian Day number. MJD =3D X/86400 + 15020 > > +# > > +# DTAI: The difference DTAI=3D TAI-UTC in units of seconds > > +# It is the quantity to add to UTC to get the time in TAI > > +# > > +# Day Month Year : epoch in clear > > +# > > +#NTP Time DTAI Day Month Year > > +# > > +2272060800 10 # 1 Jan 1972 > > +2287785600 11 # 1 Jul 1972 > > +2303683200 12 # 1 Jan 1973 > > +2335219200 13 # 1 Jan 1974 > > +2366755200 14 # 1 Jan 1975 > > +2398291200 15 # 1 Jan 1976 > > +2429913600 16 # 1 Jan 1977 > > +2461449600 17 # 1 Jan 1978 > > +2492985600 18 # 1 Jan 1979 > > +2524521600 19 # 1 Jan 1980 > > +2571782400 20 # 1 Jul 1981 > > +2603318400 21 # 1 Jul 1982 > > +2634854400 22 # 1 Jul 1983 > > +2698012800 23 # 1 Jul 1985 > > +2776982400 24 # 1 Jan 1988 > > +2840140800 25 # 1 Jan 1990 > > +2871676800 26 # 1 Jan 1991 > > +2918937600 27 # 1 Jul 1992 > > +2950473600 28 # 1 Jul 1993 > > +2982009600 29 # 1 Jul 1994 > > +3029443200 30 # 1 Jan 1996 > > +3076704000 31 # 1 Jul 1997 > > +3124137600 32 # 1 Jan 1999 > > +3345062400 33 # 1 Jan 2006 > > +3439756800 34 # 1 Jan 2009 > > +3550089600 35 # 1 Jul 2012 > > +3644697600 36 # 1 Jul 2015 > > +# > > +# In order to verify the integrity of this file, a hash code > > +# has been generated. For more information how to use > > +# this hash code, please consult the README file under the > > +# 'sha' repertory. > > +# > > +#h 620ba8af 37900668 95ac09ba d77640f9 6fd75493 > >=20 > > > --Apple-Mail=_60572A67-97E7-4200-AEF6-88DC6354712B > Content-Transfer-Encoding: 7bit > Content-Disposition: attachment; > filename=signature.asc > Content-Type: application/pgp-signature; > name=signature.asc > Content-Description: Message signed with OpenPGP using GPGMail > > -----BEGIN PGP SIGNATURE----- > Comment: GPGTools - https://gpgtools.org > > iQIcBAEBCgAGBQJWIp9QAAoJEGwc0Sh9sBEA8GMP/RxMSBQvI0BKgbMfYZh7+x2w > gGPNOl5FrDjv6R1QxM2alDe3sEZmhNsZ5o0Ekso4kA/uzz5hF9eElp2EA0wn2DMa > 1IWJKbLUwLsKvN5bC2cMVmzlklqknm9R7EVyRwPB1Q9jgN8cQV4q01tN96XzbCmQ > 1M2Tg8CccnpI9hpdOLjpZQB72kr+rTUm9YrIuiP+nq62NjP4u4UyquKOeUfyyZP1 > WnpDNHNknvzlhCnXiexFHUtueL0bAjnSs0F9C7k661xtdt43q/zp0VWkTUeib8/y > o64PLOmq3dRK+PLDwRLY94OSpe5QqDivyR4H0BAbKbV97GjC/9byhJenR2J+5GUC > 2w54ddlW6rr7rE5kZYd8E5DSoMlmunpm1rMbEwHLHtRXxorZxDUMvj779VS4rj2b > MDxVngI/H0/o3inpSZjsqyLqNut8h204r64m2W5MWTMUJ5z1Evb/Uj6Gewfu3rk2 > kALtxq32we0Edt8VjYUAOOG/ZjTUWdBY0DPsDBeqjeYqkTNP7Ebgj0z0P69UYRsu > XBuMd7ONzSDSAGYXHbyBa2eLhPxDpInBPZ/R4agybBQIJ1qKv6PtV0VH8VGYzADm > DhrVGOsSc/yyou+YX7EzTT4F0S1gjPEgO4wopmZdOUFaNBzE8n8UVxTmT4jMlrTH > SchUp801COK+osnNyG4c > =3+ya > -----END PGP SIGNATURE----- > > --Apple-Mail=_60572A67-97E7-4200-AEF6-88DC6354712B-- > _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
