Re: How can Emacs get a unique ID per Linux reboot?
H. Peter Anvin (hpa@transmeta.com)
1 Jun 1999 04:06:34 GMT
Followup to: <199906010238.TAA18495@shade.twinsun.com>
By author: Paul Eggert <eggert@twinsun.com>
In newsgroup: linux.dev.kernel
>
> For most operating systems, BOOTID is the timestamp of the last
> reboot. For example, if I edit FOO on Solaris 7, Emacs might create a
> symbolic link from .#FOO to eggert@shade.twinsun.com.18323:924306205,
> since shade.twinsun.com was last rebooted 924306205 seconds after
> 1970-01-01 00:00:00 UTC.
>
> Unfortunately, RMS and I haven't been able to discover a documented,
> guaranteed, and fast way to get a unique reboot ID for Linux.
>
Get the current uptime from /proc/uptime and subtract that from the
current time.
-hpa
--
"The user's computer downloads the ActiveX code and simulates a 'Blue
Screen' crash, a generally benign event most users are familiar with
and that would not necessarily arouse suspicions."
-- Security exploit description on http://www.zks.net/p3/how.asp
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