Re: Is there a

[Tom Van Looy]

You can create a symlink to /dev/null and name it whatever you want?

$ ln -s /dev/null tempfile
$ echo blablabla > tempfile
$ wc tempfile
0 tempfile




>----- Oorspronkelijk bericht -----
>Van: rzryyvzy [mailto:rzryyvzy@xxxxxxxxxxxxx]
>Verzonden: donderdag, februari 14, 2008 10:30 AM
>Aan: linux-kernel@xxxxxxxxxxxxxxx
>Onderwerp: Is there a "blackhole" /dev/null directory?
>
>Hello Linux Kernel Hackers,
>
>/dev/null is often very useful, specially if programs force to save data in some file. But some programs like to creates different temporary file names, so /dev/null could no more work.
>
>What is with a "/dev/null"-directory?
>I mean a "blackhole pseudo directory" which eats every write to null.
>
>Here is how it could work:
>mount -t nulldir nulldir /dev/nulldir
>
>Now if a program does a create(2),
>it creates in the memory the file with its fd.
>Then if a program does a write(2) to the fd, it eats the writes and give out fakely it has written the number of bytes.
>When the program calls does a close(2) of the fd, then the complete inode is deleted in the memory.
>
>The directory should  be permanently empty except for the inodes with open file descriptors. So only inode information would be temporary saved in this "nulldir tmpfs" directory.
>
>Is there already existing a possibility to create a null directory?
>-- 
>Best regards,
>Mika Lawando
>
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