Re: 'Undeleting' an open file

From: Andreas Schwab
Date: Fri Oct 07 2005 - 10:05:31 EST


Bernd Petrovitsch <bernd@xxxxxxxxx> writes:

> On Fri, 2005-10-07 at 15:30 +0100, Ian Campbell wrote:
>> Access via /proc/PID/fd/* seems to work:
>>
>> $ echo "Hello World" > testing
>> $ exec 10>>testing
>> $ rm testing
>> $ ls -l /proc/self/fd/
>> total 5
>> lrwx------ 1 icampbell icampbell 64 Oct 7 15:28 0 -> /dev/pts/9
>> lrwx------ 1 icampbell icampbell 64 Oct 7 15:28 1 -> /dev/pts/9
>> l-wx------ 1 icampbell icampbell 64 Oct 7 15:28 10
>> -> /home/icampbell/testing (deleted)
>> lrwx------ 1 icampbell icampbell 64 Oct 7 15:28 2 -> /dev/pts/9
>> lr-x------ 1 icampbell icampbell 64 Oct 7 15:28 3 -> /proc/31390/fd/
>> $ cat /proc/self/fd/10
>> Hello World
>> $
>
> Did you try linking it?

link(2) does not follow symlinks, and there is no flink(2).

Andreas.

--
Andreas Schwab, SuSE Labs, schwab@xxxxxxx
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