xref: /illumos-gate/usr/src/cmd/svc/milestone/rmtmpfiles (revision bbf215553c7233fbab8a0afdf1fac74c44781867)

#!/sbin/sh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.

# For modifying the behavior of rmtmpfiles, do not edit this script.
# Instead use svccfg(8) to modify the SMF repository.  To achieve
# traditional System V treatment of /var/tmp, invoke the following
# commands.:
#
# # svccfg
# svc:> select system/rmtmpfiles
# svc:/system/rmtmpfiles> setprop options/clean_vartmp="true"
# svc:/system/rmtmpfiles> select default
# svc:/system/rmtmpfiles:default> refresh
# svc:/system/rmtmpfiles:default> exit
#

# Traditional SunOS 4.x behavior has been to not remove directories in
# the /tmp directory; only simple files were removed. This lead to an
# inconsistency when the tmpfs file system was used (which isn't persistent
# across boots. The following adopts the traditional System V behavior
# of removing everything in /tmp, unless /tmp or any of its subdirectories
# are mount points for another filesystem.

/sbin/mount | /usr/bin/egrep '^/tmp(/| )' >/dev/null 2>&1 || {
	if [ -h /tmp ]; then
		# Just remove files under directory if symbolic link
		/usr/bin/rm -rf /tmp/*
	else
		/usr/bin/rm -rf /tmp
		/usr/bin/mkdir -m 1777 /tmp
		/usr/bin/chown root:sys /tmp
	fi
}

# Clean up /etc directory

for file in /etc/rem_name_to_major /etc/nologin; do
	[ -f $file ] && /usr/bin/rm -f $file
done

# Traditional SunOS 4.x behavior has been to not alter the contents of
# /var/tmp (/usr/tmp) at boot time. This behavior is maintained as the
# current default behavior. If the traditional System V behavior of
# removing everything in /var/tmp is desired then clean up /var/tmp,
# unless /var/tmp or any of its subdirectories are mount points for
# another filesystem.

CLEAN_VARTMP=`svcprop -c -p options/clean_vartmp $SMF_FMRI`
if [ "$CLEAN_VARTMP" = "true" ]; then
    /sbin/mount | /usr/bin/egrep '^/var/tmp(/| )' >/dev/null 2>&1 || {
	cd /var/tmp || exit 0

	# We carefully remove all files except the Ex* files (editor
	# temporary files), which expreserve will process later (in
	# S89PRESERVE).  Of course, it would be simpler to just run
	# expreserve before this script, but that doesn't work --
	# expreserve requires the name service, which is not available
	# until much later.

	/usr/bin/ls -a | /usr/bin/egrep -v '^(Ex.*|\.|\.\.)$' |
	    /usr/bin/xargs /usr/bin/rm -rf -- 2>/dev/null
    }
fi

exit 0