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#! /bin/sh -e
# This helper script is used by the postfix init scripts,
# upstart jobs, systemd services, openrc scripts, etc. in
# prepping the instance of postfix to be started.
# It was originally part of the postfix init script, which
# was written by LaMont Jones <lamont@debian.org>, and based
# off of the sendmail init script.
INSTANCE="$1"
SYNC_CHROOT="y"
if test -r /etc/default/postfix; then
. /etc/default/postfix
fi
if [ "X$INSTANCE" = X ] || [ "X$INSTANCE" = "X-" ]; then
POSTCONF="postconf -o inet_interfaces="
else
POSTCONF="postconf -o inet_interfaces= -c /etc/$INSTANCE"
fi
# if you set myorigin to 'ubuntu.com' or 'debian.org', it's wrong, and annoys the admins of
# those domains. See also sender_canonical_maps.
MYORIGIN=$($POSTCONF -hx myorigin | tr 'A-Z' 'a-z')
if [ "X${MYORIGIN#/}" != "X${MYORIGIN}" ]; then
MYORIGIN=$(tr 'A-Z' 'a-z' < $MYORIGIN)
fi
if [ "X$MYORIGIN" = Xubuntu.com ] || [ "X$MYORIGIN" = Xdebian.org ]; then
echo "Invalid \$myorigin ($MYORIGIN), refusing to start"
exit 1
fi
config_dir=$($POSTCONF -hx config_directory)
MAJOR_VER=$($POSTCONF -hx mail_version|cut -d. -f1)
COMPAT=$($POSTCONF -xh compatibility_level|cut -d. -f1)
[ $MAJOR_VER -ge 3 ] && [ $COMPAT -ge 1 ] && CHROOT_TEST="[yY]" || CHROOT_TEST="[-yY]"
# see if anything is running chrooted.
NEED_CHROOT=$(awk '/^[0-9a-z]/ && ($5 ~ "'"$CHROOT_TEST"'") { print "y"; exit}' ${config_dir}/master.cf)
if [ -n "$NEED_CHROOT" ] && [ -n "$SYNC_CHROOT" ]; then
# Make sure that the chroot environment is set up correctly.
umask 022
queue_dir=$($POSTCONF -hx queue_directory)
cd "$queue_dir"
# copy the smtp CA path if specified
sca_path=$($POSTCONF -hx smtp_tls_CApath)
case "$sca_path" in
'') :;; # no sca_path
$queue_dir/*) :;; # skip stuff already in chroot
*)
if test -d "$sca_path"; then
dest_dir="$queue_dir/${sca_path#/}"
# strip any/all trailing /
while [ "${dest_dir%/}" != "${dest_dir}" ]; do
dest_dir="${dest_dir%/}"
done
new=0
if test -d "$dest_dir"; then
# write to a new directory ...
dest_dir="${dest_dir}.NEW"
new=1
fi
mkdir --parent ${dest_dir}
# handle files in subdirectories
(cd "$sca_path" && find . -name '*.pem' -not -xtype l -print0 | cpio -0pdL --quiet "$dest_dir") 2>/dev/null ||
(echo failure copying certificates; exit 1)
c_rehash "$dest_dir" >/dev/null 2>&1
if [ "$new" = 1 ]; then
# and replace the old directory
rm -rf "${dest_dir%.NEW}"
mv "$dest_dir" "${dest_dir%.NEW}"
fi
fi
;;
esac
# copy the smtpd CA path if specified
dca_path=$($POSTCONF -hx smtpd_tls_CApath)
case "$dca_path" in
'') :;; # no dca_path
$queue_dir/*) :;; # skip stuff already in chroot
*)
if test -d "$dca_path"; then
dest_dir="$queue_dir/${dca_path#/}"
# strip any/all trailing /
while [ "${dest_dir%/}" != "${dest_dir}" ]; do
dest_dir="${dest_dir%/}"
done
new=0
if test -d "$dest_dir"; then
# write to a new directory ...
dest_dir="${dest_dir}.NEW"
new=1
fi
mkdir --parent ${dest_dir}
# handle files in subdirectories
(cd "$dca_path" && find . -name '*.pem' -not -xtype l -print0 | cpio -0pdL --quiet "$dest_dir") 2>/dev/null ||
(echo failure copying certificates; exit 1)
c_rehash "$dest_dir" >/dev/null 2>&1
if [ "$new" = 1 ]; then
# and replace the old directory
rm -rf "${dest_dir%.NEW}"
mv "$dest_dir" "${dest_dir%.NEW}"
fi
fi
;;
esac
# if we're using unix:passwd.byname, then we need to add etc/passwd.
local_maps=$($POSTCONF -hx local_recipient_maps)
if [ "X$local_maps" != "X${local_maps#*unix:passwd.byname}" ]; then
if [ "X$local_maps" = "X${local_maps#*proxy:unix:passwd.byname}" ]; then
sed 's/^\([^:]*\):[^:]*/\1:x/' /etc/passwd > etc/passwd
chmod a+r etc/passwd
fi
fi
FILES="etc/localtime etc/services etc/resolv.conf etc/hosts \
etc/host.conf etc/nsswitch.conf etc/nss_mdns.config"
for file in $FILES; do
[ -d ${file%/*} ] || mkdir -p ${file%/*}
if [ -f /${file} ]; then rm -f ${file} && cp /${file} ${file}; fi
if [ -f ${file} ]; then chmod a+rX ${file}; fi
done
# ldaps needs this. debian bug 572841
(echo /dev/random; echo /dev/urandom) | cpio -pdL --quiet . 2>/dev/null || true
rm -f usr/lib/zoneinfo/localtime
mkdir -p usr/lib/zoneinfo
ln -sf /etc/localtime usr/lib/zoneinfo/localtime
LIBLIST=$(for name in gcc_s nss resolv; do
for f in /lib/*/lib${name}*.so* /lib/lib${name}*.so*; do
if [ -f "$f" ]; then echo ${f#/}; fi;
done;
done)
if [ -n "$LIBLIST" ]; then
for f in $LIBLIST; do
rm -f "$f"
done
tar cf - -C / $LIBLIST 2>/dev/null |tar xf -
fi
fi
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