-#! /bin/sh
-# The rsync source host needs to be customized..
+#! /bin/bash
+
+# Copyright (c) 1999-2001 Jason Gunthorpe <jgg@debian.org>
+# Copyright (c) 2002-2003,2006 Ryan Murray <rmurray@debian.org>
+# Copyright (c) 2004-2005 Joey Schulze <joey@infodrom.org>
+# Copyright (c) 2008 Peter Palfrader <peter@palfrader.org>
+# Copyright (c) 2008 Stephen Gran <sgran@debian.org>
+#
+# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
set -e
+# Without effect on the commandline
+if [ -z "$TERM" -o "$TERM" = "dumb" ]
+then
+ exec > /dev/null 2>&1
+ sleep $(( $RANDOM % 120 ))
+else
+ verbose=-v
+fi
+
+tempdir=''
+tempfile=''
+tempfile2=''
+
+cleanup ()
+{
+ rm -f lock
+ rm -rf $tempdir
+ rm -f $tempfile
+ rm -f $tempfile2
+}
+
+PATH=/sbin:/usr/sbin:/bin:/usr/bin
+export PATH
HOST=`hostname -f`
+SYNCHOST=`ud-config synchost`;
+LOCALSYNCON=`ud-config localsyncon`;
+EMAILAPPEND=`ud-config emailappend`;
cd /tmp/
-cd /var/lib/misc > /dev/null 2>&1 || cd /var/state/glibc/ > /dev/null 2>&1 || cd /var/db/ > /dev/null 2>&1
-lockfile -r 1 -l 3600 lock > /dev/null 2>&1
-trap "rm -f lock > /dev/null 2>&1" exit
-rsync -e ssh -rp sshdist@samosa:/var/cache/userdir-ldap/hosts/$HOST . > /dev/null 2>&1
-makedb $HOST/passwd.tdb -o passwd.db.t > /dev/null 2>&1
-(umask 027 && makedb $HOST/shadow.tdb -o shadow.db.t) > /dev/null 2>&1
-chown root.shadow shadow.db.t; chmod 0640 shadow.db.t
-makedb $HOST/group.tdb -o group.db.t > /dev/null 2>&1
+cd /var/lib/misc || cd /var/state/glibc/ || cd /var/db/
+lockfile -r 1 -l 3600 lock
+trap cleanup exit
+
+case $HOST in
+$LOCALSYNCON)
+ udhost=
+ ;;
+*)
+ udhost="sshdist@$SYNCHOST:"
+ ;;
+esac
+
+tempfile=$(mktemp)
+tempfile2=$(mktemp)
+
+if [ -e /var/lib/misc/thishost/dns-sshfp ]; then
+ cp /var/lib/misc/thishost/dns-sshfp $tempfile
+fi
+
+if [ -e /var/lib/misc/thishost/dns-zone ]; then
+ cp /var/lib/misc/thishost/dns-zone $tempfile2
+fi
+
+rsync ${verbose} --delete-after -e 'ssh -i /etc/ssh/ssh_host_rsa_key -o PreferredAuthentications=publickey' -rp "${udhost}/var/cache/userdir-ldap/hosts/$HOST" .
+
+makedb "$HOST/passwd.tdb" -o passwd.db.t
+if [ -s "$HOST/shadow.tdb" ]
+then
+ (umask 027 && makedb "$HOST/shadow.tdb" -o shadow.db.t)
+ chown root.shadow shadow.db.t
+ chmod 0640 shadow.db.t
+ mv -f shadow.db.t shadow.db
+fi
+makedb "$HOST/group.tdb" -o group.db.t
mv -f passwd.db.t passwd.db
-mv -f shadow.db.t shadow.db
mv -f group.db.t group.db
-ln -sf $HOST/ssh-rsa-shadow . > /dev/null 2>&1
-ln -sf $HOST/ssh_known_hosts . > /dev/null 2>&1
-if [ -e $HOST/bsmtp ]; then
- if perl -e 'exit !((stat "/etc/exim/bsmtp")[9] < time()-3600)'; then
- cp $HOST/bsmtp /etc/exim/bsmtp
+if [ -e "$HOST/ssh-rsa-shadow" ]; then
+ ln -sf $HOST/ssh-rsa-shadow .
+ ln -sf `pwd -P`/ssh-rsa-shadow /etc/ssh
+else
+ rm -f ssh-rsa-shadow /etc/ssh/ssh-rsa-shadow
+fi
+ln -sf $HOST/ssh_known_hosts .
+ln -sf `pwd -P`/ssh_known_hosts /etc/ssh
+
+if [ -e ${HOST}/ssh-keys.tar.gz ]; then
+ export TMPDIR='/tmp/'
+ tempdir=$(mktemp -d)
+ tar -C "$tempdir" -xf ${HOST}/ssh-keys.tar.gz
+ mkdir -p userkeys
+ chmod 755 $tempdir
+ rsync -a --delete-after $tempdir/ userkeys/
+fi
+
+CHROOTS=""
+if [ -x /usr/bin/dchroot ]; then
+ CHROOTS=`dchroot --listpaths`
+elif [ -x /usr/bin/dchroot-dsa ]; then
+ CHROOTS=$(dchroot-dsa -i | grep Location | awk '{print $2}')
+fi
+if [ -n "$CHROOTS" ]; then
+ for c in $CHROOTS; do
+ if [ "$c" = "/" ] || [ "$c" = "" ]; then
+ echo "$0 WTF: \$c is '' or '/' here." 2>&1
+ exit 1
+ fi
+ if [ -x "$c/usr/bin/makedb" ]
+ then
+ mkdir -p "$c/var/lib/misc/$HOST"
+
+ # remove extra stuff from earlier times and so
+ find "$c/var/lib/misc/$HOST" -mindepth 1 \
+ ! -name group.tdb -a \
+ ! -name passwd.tdb -a \
+ ! -name ssh_known_hosts \
+ -print0 | xargs --no-run-if-empty -0 rm -f
+ rsync -a ${verbose} $HOST/group.tdb $HOST/passwd.tdb $HOST/ssh_known_hosts "$c/var/lib/misc/$HOST"
+
+ # clean up from the times we supposedly did shadow stuff in chroots
+ rm -f "$c/var/lib/misc/shadow.db"
+
+ # from failed makedb runs earlier.
+ rm -f "$c/var/lib/misc/passwd.db.t" \
+ "$c/var/lib/misc/group.db.t"
+ # build passwd information
+ chroot "$c" makedb "/var/lib/misc/$HOST/passwd.tdb" -o /var/lib/misc/passwd.db.t
+ chroot "$c" makedb "/var/lib/misc/$HOST/group.tdb" -o /var/lib/misc/group.db.t
+ mv -f "$c/var/lib/misc/passwd.db.t" "$c/var/lib/misc/passwd.db"
+ mv -f "$c/var/lib/misc/group.db.t" "$c/var/lib/misc/group.db"
+
+ ln -sf "$HOST/ssh_known_hosts" "$c/var/lib/misc/"
+ if [ -d "$c/etc/ssh" ]; then
+ ln -sf ../../var/lib/misc/ssh_known_hosts "$c/etc/ssh"
+ elif [ -L "$c/etc/ssh" ] && [ "`readlink \"$c/etc/ssh\"`" = "../../var/lib/misc/ssh_known_hosts" ]; then
+ # clean up past mistakes
+ rm -f "$c/etc/ssh"
+ fi
+ fi
+ done
+fi
+
+if [ -d "/etc/exim4" -a -e "$HOST/bsmtp" ]; then
+ if perl -e 'exit !((stat "/etc/exim4/bsmtp")[9] < time()-3600)'; then
+ cp "$HOST/bsmtp" /etc/exim4/bsmtp
fi
fi
+if [ -d "/etc/postfix" -a -f "$HOST/forward-alias" ]; then
+ sed -e "s/:/@$EMAILAPPEND/" $HOST/forward-alias > /etc/postfix/debian
+ /usr/sbin/postmap hash:/etc/postfix/debian < /etc/postfix/debian || true
+fi
+
+rndc_reload=0
+if [ -e /var/lib/misc/thishost/dns-sshfp ]; then
+ if ! cmp -s /var/lib/misc/thishost/dns-sshfp $tempfile; then
+ /git/HOOKS/write_zonefile debian.org
+ rndc_reload=1
+ fi
+fi
+
+if [ -e /var/lib/misc/thishost/dns-zone ]; then
+ if ! cmp -s /var/lib/misc/thishost/dns-zone $tempfile2; then
+ /git/HOOKS/write_zonefile debian.net
+ rndc_reload=1
+ fi
+fi
+
+if [ "${rndc_reload}" -gt 0 ]; then
+ rndc reload
+fi