Here is a simple patch to the system autofs startup script so that
-hosts and -null is enabled in autofs 4.1.x. This patch is actually
against a RedHat autofs, but the same code is present in
samples/rc.autofs.in.
For -hosts, it just translates the map name to /etc/auto.net if that
is present and executable.
For -null, it just adds the mountpoint location to the list of
knownmaps, but doesn't do anything else.
PS: I see that v5 handles these anyway. However, this note in
README.v5.release looks ominous...
==========
- a "hosts" map module has been added
- an entry like "/net -hosts" is now understood and uses the new
multi-mount semantics for lazy mount/umount of exports from the
host.
- the implementation is quite simple minded at this stage and will
need
refinment. It just iterates through the host table and addes any
host
names it finds to the internal map.
==========
Some of us have thousands of hosts in a host map, eg:
systemx*[1] ypcat -k hosts | wc -l
30899*** autofs.orig 2006-07-07 08:56:05.000000000 -0400
--- autofs 2006-07-07 09:25:57.000000000 -0400
***************
*** 191,197 ****
dir=`echo "$dir" | sed -e "s/\/*$//"`
if [ ! -z "$map" -a "$map" = "-hosts" ] ; then
! continue
fi
if [ $DISABLE_DIRECT -eq 1 \
-a x`echo $dir | grep -E "^/-"` != 'x' ]
--- 191,201 ----
dir=`echo "$dir" | sed -e "s/\/*$//"`
if [ ! -z "$map" -a "$map" = "-hosts" ] ; then
! if [ -x '/etc/auto.net' ]; then
! map='/etc/auto.net'
! else
! continue
! fi
fi
if [ $DISABLE_DIRECT -eq 1 \
-a x`echo $dir | grep -E "^/-"` != 'x' ]
***************
*** 210,215 ****
--- 214,224 ----
fi
done
+ if [ "$map" = '-null' ]; then
+ # Just add dir to list of those with a known map, but do nothing else
+ knownmaps=" $dir/ $knownmaps"
+ continue
+ fi
if [ ! -z "$dir" -a ! -z "$map" \
-a x`echo "$map" | cut -c1` != 'x-' ]
then
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