Dateshift - a date/time test tool

Dateshift is a tool for shifting date/time. In particular it allows a process or set of process to run with a different clock setting, without having to change the system clock.

This is useful because changing the system clock requires root privilege and is inconvienient on shared machines.

Why?

• Use dateshift to test your finance package on 29th Feb
• Use dateshift to find out what happens when unix time wraps around in 2037.
• Use dateshift to test your new clock program!

Getting Dateshift

You can download the source code from the links below. I've tested it on Linux and Solaris.

dateshift-1.0.tar.gz

Installing Dateshift

For installation dateshift using the usual sequence of commands:

tar xzvf dateshift-1.0.tar.gz
cd dateshift
./configure
make
make install


User Documentation

Dateshift comes with a manual page. You can see an html version of it here.

How does it work?

Dateshift intercepts the time() and gettimeofday() using the run time linker's LD_PRELOAD feature.

Copyright

Dateshift is Copyright 2002, Alex Hornby under the terms of the GNU General Public Licence version 2 or later.

Alex's Home Page

Last modified: Sun Jun 30 16:33:22 BST 2002