2021-02-06 08:59:23 +08:00
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vsntp change log
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2021-02-07 00:50:01 +08:00
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2020-02-07
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1. .gitignore Added that excludes generated files by automake and
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autoconf.
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2. .git: Re-initialized.
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3. AUTHORS.zh-tw, INSTALL.zh-tw, NEWS.zh-tw, README.zh-tw, THANKS.zh-tw,
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init.d/README.zh-tw, AUTHORS.zh-cn, INSTALL.zh-cn, NEWS.zh-cn,
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README.zh-cn, THANKS.zh-cn, init.d/README.zh-cn: Removed messy
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multi-lingual documents.
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4. README, ChangeLog, doc/vsntp.8, doc/vsntp.texi, init.d/vsntp.debian,
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init.d/vsntp.redhat: Revised the URL and typos.
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5. NEWS, init.d/README: Fixed typos.
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6. vsntp.c, Makefile.am, doc/Makefile.am, init.d/Makefile.am, COPYING:
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Updated the URL.
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2020-02-01
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vsntp is hosted on GitHub now.
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2013-11-13 version 2.1.0 (not released)
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2021-02-06 08:59:23 +08:00
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Does not work on x86_64 yet. Don't know whether it still works on i386.
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I don't have i386 anymore.
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1. vsntp.c: Removed the weird method to calculate the next time line
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for synchronization. It was my bad taste to synchronize at the
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the time of multiples of interval. When many clients are
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synchronized to a same server, synchronizing them at a same time
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will overload the server and create DDoS. Thanks to the reminder of
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Steven Shen <fbishen@gmail.com>.
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2. AUTHORS.zh-tw, INSTALL.zh-tw, NEWS.zh-tw, README.zh-tw, THANKS.zh-tw,
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2021-02-07 00:50:01 +08:00
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init.d/README.zh-tw: Converted from Big5 to UTF-8. I'm not working
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2021-02-06 08:59:23 +08:00
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on Windows anymore. Big5 cause problem with gedit.
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3. AUTHORS.zh-cn, INSTALL.zh-cn, NEWS.zh-cn, README.zh-cn, THANKS.zh-cn,
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2021-02-07 00:50:01 +08:00
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init.d/README.zh-cn: Converted from GB2312 to UTF-8. I'm not working
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2021-02-06 08:59:23 +08:00
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on Windows anymore. GB2312 cause problem with gedit.
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4. configure: Updated with GNU Autoconf 2.69.
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2007-11-28
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1. ChangeLog.zh-tw, ChangeLog.zh-cn: Removed.
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2. COPYING.zh-tw, COPYING.zh-cn: Removed.
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3. License updated to GPLv3.
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4. Removed Traditional Chinese comments.
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2004-03-29 version 2.0.0
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2021-02-07 00:50:01 +08:00
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1. vsntp.c: The synchronization scheduler has been rewritten to
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2021-02-06 08:59:23 +08:00
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allow alternative schedulers, in order to work with the problem
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reported by Jean-Alain Le Borgne <jalb@pobox.com> 2007-03-26,
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that sleep() may not return after MS Virtual PC 2007 was suspended
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for a while.
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2021-02-07 00:50:01 +08:00
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2. vsntp.c: An alternative scheduler using alarm() was added in
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2021-02-06 08:59:23 +08:00
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addition to sleep(), based on the contribution by Jean-Alain.
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3. vsntp.c: New subroutine setsigalrm() was added to set the SIGALRM
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signal handler.
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4. vsntp.c: New subroutine alarm_wakeup() was added as the alarm()
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2021-02-07 00:50:01 +08:00
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scheduler.
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2021-02-06 08:59:23 +08:00
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5. vsntp.c: Two new constants SCHEDULER_SLEEP and SCHEDULER_ALARM were
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added as the scheduler choices of the user.
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6. vsntp.c: Two new switches -a/--alarm and -s/--sleep were added for
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the user to choose the scheduler. The default is currently -s.
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7. vsntp.c: New variable "scheduler" added to as the scheduler choice
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of the user.
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8. vsntp.c: Variable "next" was made global so that the alarm()
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scheduler can access it, too.
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9. vsntp.c: Check the return value of synctime() so that skip logging
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when time was not adjusted (time correct or network error).
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10. vsntp.c: Logging of time synchronization after the first time
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was added, in log level LOG_DEBUG.
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11. vsntp.c: errstart is now calculated and maintained in synctime()
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instead of neterror(), in order to log the time sequence of the
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network errors.
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12. vsntp.c: Re-formatting error messages and warnings according to
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the GNU Coding Standards, as:
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source-file-name:lineno: message
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2021-02-07 00:50:01 +08:00
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Refer to: https://www.gnu.org/prep/standards/html_node/Errors.html
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2021-02-06 08:59:23 +08:00
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13. vsntp.c: Added logging before connect(), send() and recv() at
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log level LOG_DEBUG in order to know the current progress when
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debugging network problems.
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14. vsntp.c: Added logging of value t1, t2, t3, t4 and toff in log
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level LOG_DEBUG in order to debug time calculation problems.
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15. vsntp.c: New subroutine xsigemptyset() was added to run
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sigemptyset() and handle its error. setsigalrm() was updated
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to use xsigemptyset() instead of sigemptyset().
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16. vsntp.c: New subroutine xsigaction() was added to run sigaction()
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and handle its error. setsigalrm() was updated to use xsigaction()
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instead of sigaction().
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17. vsntp.c: English comment fix. "... and handle errors" was updated
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as "... and handle its error."
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18. configure.ac: Added AC_TYPE_SSIZE_T, and added "alarm()" in
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2021-02-07 00:50:01 +08:00
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AC_CHECK_FUNCS, according to the suggestion by automake 1.9.6.
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19. configure.in and aclocal.m4: Regenerated using automake 1.9.6.
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20. configure: Regenerated using autoconf 2.61.
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2021-02-06 08:59:23 +08:00
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21. vsntp.c: Added conditional #ifdef, so that if alarm() is not
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supported on the target platform the alarm() scheduler will not
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be compiled.
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22. vsntp.c: A new constant DEFAULT_SCHEDULER was added as the
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default scheduler.
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23. Added init.d directory, with a Debian SysV init script, a Red Hat
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SysV init script, a configuration file used by the init scripts,
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and README in 3 languages.
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24. Added doc directory, and moved vsntp.texi, vsntp.8 and rfc1769.txt
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inside.
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25. vsntp.c: Fixed the basic profile in the beginning comment, from
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synctime.c to vsntp.c. That was the first name of vsntp. It was
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renamed for years.
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2021-02-07 00:50:01 +08:00
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26. vsntp.8: Fixed the BUGS chapter, replacing the original text with
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2021-02-06 08:59:23 +08:00
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the SourceForge users' mailing list information.
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27. README, vsntp.8 and vsntp.texi: Added notes about the scheduler
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issue.
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28. README, vsntp.8 and vsntp.texi: Added notes about how to debug.
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29. README, vsntp.8 and vsntp.texi: Added notes about portability.
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30. README, vsntp.8 and vsntp.texi: Added requests to users to let me
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know that someone is using vsntp. :p
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2004-01-14 version 1.1.1
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Documentation fix.
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1. ChangeLog and NEWS year typo fixed. (2003 -> 2004)
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2. Home site at SourceForge done.
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3. Documentation revised on official website, other reference
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information.
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4. Documentation revised on wordings and typos.
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2004-01-13
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1. HTML page at Tavern IMACAT's done.
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2. texinfo document revised.
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2004-01-12 version 1.1.0
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First public release.
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1. Added texinfo documentation.
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2. Added -i and -p switch.
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3. Default synchronization interval changed to 900 seconds, do avoid
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making troubles with foreign NTP servers.
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2004-01-11
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1. Added automake and autoconf.
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2. Added documentation: README, INSTALL, COPYING, ChangeLog, NEWS,
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AUTHORS, THANKS, and manpage.
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2004-01-10
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1. The SourceForge project space approved.
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2004-01-09
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1. Applying a SourceForge project space.
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2003-12-24 version 1.0.0
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Finalized.
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1. Program name changed from "synctime" to "vsntp".
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2. Protocol changed from RFC 868 Time to RFC 1769 SNTP.
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3. Synchronization interval shortened to 5 seconds.
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2003-12-23
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Start writing, with a name as "synctime".
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