/dev/full (place)

/dev/full is an always-full device. I have yet to find a use for it. Any writes to /dev/full will fail. Reads from /dev/full will return \0. Any seeks on /dev/full will succeed.

The "full" man page:

FULL(4)             Linux Programmer's Manual             FULL(4)

NAME
       full - always full device

DESCRIPTION
       File  /dev/full has major device number 1 and minor device
       number 7.

       Writes to the /dev/full device will fail  with  an  ENOSPC
       error.

       Reads from the /dev/full device will return \0 characters.

       Seeks on /dev/full will always succeed.

CONFIGURING
       If your system does not have /dev/full created already, it
       can be created with the following commands:

               mknod -m 666 /dev/full c 1 7
               chown root:root /dev/full

FILES
       /dev/full

SEE ALSO
       mknod(1), null(4), zero(4)

Linux                       1997-08-02                    FULL(4)