Changes in 0.9.0
----------------
- Mostly code cleanup
- Changed "char" variables into "int", which should be more efficient
- Changed the qsort routine, into an insertion sort. Quicksort is
kind of overkill for such small lists.
- Debug mode is allowed in daemon mode.
0.8.8
-----
- Speeded up the poll cycle loop, once a time offset has been detected.
- Added systematic drift to the syslog logging (daemon only).
The "adjtimex_parameters.sh" script may help to reduce the drift of your
system clock.
- Changed "precision" from micro into milliseconds.
- Changed manpage directory from /usr/man into /usr/share/man.
- HTTP/1.1 has become the default
0.8.7
-----
- Bug fix: with precision set, the time could only be adjusted
negative (slow down).
- Fixed undesired effects in (rare) cases when using only a few servers.
- Exit code changed to 1 if no server was found (requested by Supernaut).
0.8.6
-----
- Reintroduction of the "-p" switch. The "precision" determines more accurate
when a time adjustment is needed. The implementation of precision is much
beter than the one in the past.
0.8.5
-----
- Changed the variable type of "param" from char into int (thanks to
Arnaud Mazin). GCC 3.4.x is less forgiving than older versions.
- Made compare function for qsort more robust (avoiding overflow).
0.8.4
-----
- Finaly added IPv6 support!
- If you would lose internet connectivity, htpdate would flood the system
(CPU and log). A patch submitted by Peter Surda, has been included.
- Removed -0 switch (HTTP/1.0), since this is the default anyway.
0.8.3
-----
- Fixed that "when" wasn't properly initialized in every poll cycle. This
bug fix reduces jitter when system time is close to the correct time.
- Added missing "-t" switch to the manpage.
- Added warning message if more than 16 servers are specified.
- Htpdate double forks now, like a proper daemon :)
- vim setting are added to the source (set ts=4)
0.8.2
-----
- Fixed a major bug in offset calculation (caused by changing the rtt type
from double to unsigned long)
0.8.1 (broken)
--------------
- Correction install paths in Makefile, added uninstall option
- Added "-t" switch, which disables time sanity checking (requested for
devices, like supported by openwrt, which boot/startup at "epoch" time)
0.8.0
-----
- Lots of code clean up, eg.:
- compiles with the -ansi switch (for better portability, but only tested
on Linux and FreeBSD)
- Compiles with Tiny C Compiler (tcc) and Intel C compiler (icc)
- Restored compatibility with FreeBSD (timezone calculation).
- A second poll is made if a time offset has been detected.
- Removed the switches "-t" and "-x". In daemon mode htpdate will only adjust
time. With the "-s" switch htpdate will set the time once at startup and
after that only smooth adjusts are made.
- Added "-l" switch, which enables logging to syslog in non-daemon mode.
Convinient if htpdate is used from cron.
- Added "-0" to make an HTTP/1.0 request and "-1" for HTTP/1.1
0.7.2
-----
- Minor bug fix. When running in daemon mode TCP connections weren't cleaned up
properly (sockets remained in CLOSE_WAIT status).
0.7.1
-----
- Bug fix. Poll cycle could become very very short (seconds...) in some
cases.
0.7.0
----------------
- The polling mechanisme has been improved once more :)
As of this version polls are also spread within the polling cycle.
This way a time offset will be detected earlier, without increasing the
polling frequency.
- Sleeptime isn't writen to syslog anymore, only time adjustments
- Previous versions of htpdate tried to close a already closed HTTP/1.0
session.
- The rpm version doesn't override the init-script anymore
0.6.2
-----
- Bug fix, time wasn't correct if 'timeavg' was negative...
0.6.1
-----
- Code clean up, use global variable 'timezone'
0.6
---
- New poll schedule mechanisme has been introduced!
This results in a better spreading of the polls in time to
gain some extra accuracy.
- Removed the -p (precision) flag, because it has become obsolete with
the new poll scheduling mechanisme.
- Extended 'debug mode' output with round trip time (rtt) information.
- Sleeptime parameters are no longer in seconds, but in 2^n seconds.
0.5
---
- Added relevant header files, so gcc -Wall compiles without warnings.
- Added -p switch, to set the precision of htpdate. The polling rate
is affected by this switch (high precision -> more frequent polling).
0.4
---
- Spread the individual time polls better, to gain accuracy with
a small number of web servers as source
- Added debug mode, so you can value the quality of the timestamps
from web servers
- Minor correction on HEAD request (removed max-age=0)
- pid file is created
- Added htpdate init script
0.3
---
- Run htpdate as a daemon
- automatic set/adjust time, based upon offset
- automatic poll interval
- Added manpage
- Added RPM
- Minor bug fixes
0.2
---
- Htpdate can set or adjust time smoothly now, without calling external
programs
0.1
---
- Initial release. Htpdate extracts the raw timestamp from a webserver.
