blob: a03c9ff200eb028463d9457069deec9fff565c14 [file] [log] [blame] [raw]
#!/bin/bash
# Copyright (C) 2000-2006 SWsoft. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#
# This script runnning on HN and perform next postinstall tasks:
# 1. Randomizes crontab for given VE so all crontab tasks
# of all VEs will not start at the same time.
# 2. Disables root password if it is empty.
#
function randcrontab()
{
file=${VE_ROOT}"/etc/crontab"
[ -f "${file}" ] || return 0
/bin/cp -fp ${file} ${file}.$$
cat ${file} | /bin/awk '
BEGIN { srand(); }
{
if ($0 ~ /^[ \t]*#/ || $0 ~ /^[ \t]+*$/) {
print $0;
next;
}
if ((n = split($0, ar, /[ \t]/)) < 7) {
print $0;
next;
}
# min
if (ar[1] ~ /^[0-9]+$/) {
ar[1] = int(rand() * 59);
}
# hour
if (ar[2] ~ /^[0-9]+$/) {
ar[2] = int(rand() * 6);
}
# day
if (ar[3] ~ /^[0-9]+$/) {
ar[3] = int(rand() * 31) + 1;
}
line = ar[1];
for (i = 2; i <= n; i++) {
line = line " " ar[i];
}
print line;
}
' > ${file}.$$ && /bin/mv -f ${file}.$$ ${file}
/bin/rm -f ${file}.$$ 2>/dev/null
}
function disableroot()
{
file=${VE_ROOT}"/etc/passwd"
[ -f "$file" ] || return 0
if /bin/grep -q "^root::" "${file}" 2>/dev/null; then
/bin/sed 's/^root::/root:!!:/g' < ${file} > ${file}.$$ && \
/bin/mv -f ${file}.$$ ${file}
/bin/rm -f ${file}.$$ 2>/dev/null
fi
}
[ -z "${VE_ROOT}" ] && return 1
randcrontab
disableroot
exit 0