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NetBSD/gnu/dist/postfix/INSTALL.sh

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#!/bin/sh
# Sample Postfix installation script. Run this from the top-level
# Postfix source directory.
PATH=/bin:/usr/bin:/usr/sbin:/usr/etc:/sbin:/etc
umask 022
test -t 0 &&
cat <<EOF
Warning: this script replaces existing sendmail or Postfix programs.
Make backups if you want to be able to recover.
In addition to doing a fresh install, this script can change an
existing installation from using a world-writable maildrop to a
group-writable one. It cannot be used to change Postfix queue
file/directory ownership.
Before installing files, this script prompts you for some definitions.
Most definitions will be remembered, so you have to specify them
only once. All definitions have a reasonable default value.
install_root - prefix for installed file names (for package building)
tempdir - where to write scratch files
config_directory - directory with Postfix configuration files.
daemon_directory - directory with Postfix daemon programs.
command_directory - directory with Postfix administrative commands.
queue_directory - directory with Postfix queues.
sendmail_path - full pathname of the Postfix sendmail command.
newaliases_path - full pathname of the Postfix newaliases command.
mailq_path - full pathname of the Postfix mailq command.
mail_owner - owner of Postfix queue files.
setgid - groupname, e.g., postdrop (default: no). See INSTALL section 12.
manpages - "no" or path to man tree. Example: /usr/local/man.
EOF
# By now, shells must have functions. Ultrix users must use sh5 or lose.
# The following shell functions replace files/symlinks while minimizing
# the time that a file does not exist, and avoid copying over programs
# in order to not disturb running programs.
censored_ls() {
ls "$@" | egrep -v '^\.|/\.|CVS|RCS|SCCS'
}
compare_or_replace() {
(cmp $2 $3 >/dev/null 2>&1 && echo Skipping $3...) || {
echo Updating $3...
rm -f $tempdir/junk || exit 1
cp $2 $tempdir/junk || exit 1
chmod $1 $tempdir/junk || exit 1
mv -f $tempdir/junk $3 || exit 1
chmod $1 $3 || exit 1
}
}
compare_or_symlink() {
(cmp $1 $2 >/dev/null 2>&1 && echo Skipping $2...) || {
echo Updating $2...
rm -f $tempdir/junk || exit 1
dest=`echo $1 | sed '
s;^'$install_root';;
s;/\./;/;g
s;//*;/;g
s;^/;;
'`
link=`echo $2 | sed '
s;^'$install_root';;
s;/\./;/;g
s;//*;/;g
s;^/;;
s;/[^/]*$;/;
s;[^/]*/;../;g
s;$;'$dest';
'`
ln -s $link $tempdir/junk || exit 1
mv -f $tempdir/junk $2 || {
echo Error: your mv command is unable to rename symlinks. 1>&2
echo If you run Linux, upgrade to GNU fileutils-4.0 or better, 1>&2
echo or choose a tempdir that is in the same file system as $2. 1>&2
exit 1
}
}
}
compare_or_move() {
(cmp $2 $3 >/dev/null 2>&1 && echo Skipping $3...) || {
echo Updating $3...
mv -f $2 $3 || exit 1
chmod $1 $3 || exit 1
}
}
# How to supress newlines in echo
case `echo -n` in
"") n=-n; c=;;
*) n=; c='\c';;
esac
# Default settings. Most are clobbered by remembered settings.
: ${install_root=/}
: ${tempdir=`pwd`}
: ${config_directory=/etc/postfix}
: ${daemon_directory=/usr/libexec/postfix}
: ${command_directory=/usr/sbin}
: ${queue_directory=/var/spool/postfix}
if [ -f /usr/lib/sendmail ]
then : ${sendmail_path=/usr/lib/sendmail}
else : ${sendmail_path=/usr/sbin/sendmail}
fi
: ${newaliases_path=/usr/bin/newaliases}
: ${mailq_path=/usr/bin/mailq}
: ${mail_owner=postfix}
: ${setgid=no}
: ${manpages=/usr/local/man}
# Find out the location of configuration files.
test -t 0 &&
for name in install_root tempdir config_directory
do
while :
do
eval echo \$n "$name: [\$$name]\ \$c"
read ans
case $ans in
"") break;;
*) eval $name=\$ans; break;;
esac
done
done
# Sanity checks
for path in $tempdir $install_root $config_directory
do
case $path in
/*) ;;
*) echo Error: $path should be an absolute path name. 1>&2; exit 1;;
esac
done
# In case some systems special-case pathnames beginning with //.
case $install_root in
/) install_root=
esac
# Load defaults from existing installation.
CONFIG_DIRECTORY=$install_root$config_directory
test -f $CONFIG_DIRECTORY/main.cf && {
for name in daemon_directory command_directory queue_directory mail_owner
do
eval $name='"`bin/postconf -c $CONFIG_DIRECTORY -h $name`"' || kill $$
done
}
if [ -f $CONFIG_DIRECTORY/install.cf ]
then
. $CONFIG_DIRECTORY/install.cf
elif [ ! -t 0 -a -z "$install_root" ]
then
echo Non-interactive install needs the $CONFIG_DIRECTORY/install.cf 1>&2
echo file from a previous Postfix installation. 1>&2
echo 1>&2
echo Use interactive installation instead. 1>&2
exit 1
fi
# Override default settings.
test -t 0 &&
for name in daemon_directory command_directory \
queue_directory sendmail_path newaliases_path mailq_path mail_owner\
setgid manpages
do
while :
do
eval echo \$n "$name: [\$$name]\ \$c"
read ans
case $ans in
"") break;;
*) eval $name=\$ans; break;;
esac
done
done
# Sanity checks
for path in $daemon_directory $command_directory \
$queue_directory $sendmail_path $newaliases_path $mailq_path $manpages
do
case $path in
/*) ;;
no) ;;
*) echo Error: $path should be an absolute path name. 1>&2; exit 1;;
esac
done
test -d $tempdir || mkdir -p $tempdir || exit 1
( rm -f $tempdir/junk && touch $tempdir/junk ) || {
echo Error: you have no write permission to $tempdir. 1>&2
echo Specify an alternative directory for scratch files. 1>&2
exit 1
}
chown root $tempdir/junk >/dev/null 2>&1 || {
echo Error: you have no permission to change file ownership. 1>&2
exit 1
}
chown "$mail_owner" $tempdir/junk >/dev/null 2>&1 || {
echo Error: $mail_owner needs an entry in the passwd file. 1>&2
echo Remember, $mail_owner must have a dedicated user id and group id. 1>&2
exit 1
}
case $setgid in
no) ;;
*) chgrp "$setgid" $tempdir/junk >/dev/null 2>&1 || {
echo Error: $setgid needs an entry in the group file. 1>&2
echo Remember, $setgid must have a dedicated group id. 1>&2
exit 1
}
esac
rm -f $tempdir/junk
# Avoid clumsiness.
DAEMON_DIRECTORY=$install_root$daemon_directory
COMMAND_DIRECTORY=$install_root$command_directory
QUEUE_DIRECTORY=$install_root$queue_directory
SENDMAIL_PATH=$install_root$sendmail_path
NEWALIASES_PATH=$install_root$newaliases_path
MAILQ_PATH=$install_root$mailq_path
MANPAGES=$install_root$manpages
# Create any missing directories.
test -d $CONFIG_DIRECTORY || mkdir -p $CONFIG_DIRECTORY || exit 1
test -d $DAEMON_DIRECTORY || mkdir -p $DAEMON_DIRECTORY || exit 1
test -d $COMMAND_DIRECTORY || mkdir -p $COMMAND_DIRECTORY || exit 1
test -d $QUEUE_DIRECTORY || mkdir -p $QUEUE_DIRECTORY || exit 1
for path in $SENDMAIL_PATH $NEWALIASES_PATH $MAILQ_PATH
do
dir=`echo $path|sed -e 's/[/][/]*[^/]*$//' -e 's/^$/\//'`
test -d $dir || mkdir -p $dir || exit 1
done
# Install files. Be careful to not copy over running programs.
for file in `censored_ls libexec`
do
compare_or_replace a+x,go-w libexec/$file $DAEMON_DIRECTORY/$file || exit 1
done
for file in `censored_ls bin | grep '^post'`
do
compare_or_replace a+x,go-w bin/$file $COMMAND_DIRECTORY/$file || exit 1
done
test -f bin/sendmail && {
compare_or_replace a+x,go-w bin/sendmail $SENDMAIL_PATH || exit 1
compare_or_symlink $SENDMAIL_PATH $NEWALIASES_PATH
compare_or_symlink $SENDMAIL_PATH $MAILQ_PATH
}
if [ -f $CONFIG_DIRECTORY/main.cf ]
then
for file in LICENSE `cd conf; censored_ls sample*` main.cf.default
do
compare_or_replace a+r,go-w conf/$file $CONFIG_DIRECTORY/$file || exit 1
done
else
cp `censored_ls conf/*` $CONFIG_DIRECTORY || exit 1
chmod a+r,go-w $CONFIG_DIRECTORY/* || exit 1
test -z "$install_root" && need_config=1
fi
# Save settings.
bin/postconf -c $CONFIG_DIRECTORY -e \
"daemon_directory = $daemon_directory" \
"command_directory = $command_directory" \
"queue_directory = $queue_directory" \
"mail_owner = $mail_owner" \
|| exit 1
(echo "# This file was generated by $0"
for name in sendmail_path newaliases_path mailq_path setgid manpages
do
eval echo $name=\$$name
done) >$tempdir/junk || exit 1
compare_or_move a+x,go-w $tempdir/junk $CONFIG_DIRECTORY/install.cf || exit 1
rm -f $tempdir/junk
# Use set-gid privileges instead of writable maildrop (optional).
test -d $QUEUE_DIRECTORY/maildrop || {
mkdir -p $QUEUE_DIRECTORY/maildrop || exit 1
chown $mail_owner $QUEUE_DIRECTORY/maildrop || exit 1
}
case $setgid in
no)
chmod 1733 $QUEUE_DIRECTORY/maildrop || exit 1
chmod g-s $COMMAND_DIRECTORY/postdrop || exit 1
postfix_script=conf/postfix-script-nosgid
;;
*)
chgrp $setgid $COMMAND_DIRECTORY/postdrop || exit 1
chmod g+s $COMMAND_DIRECTORY/postdrop || exit 1
chgrp $setgid $QUEUE_DIRECTORY/maildrop || exit 1
chmod 1730 $QUEUE_DIRECTORY/maildrop || exit 1
postfix_script=conf/postfix-script-sgid
;;
esac
compare_or_replace a+x,go-w $postfix_script $CONFIG_DIRECTORY/postfix-script ||
exit 1
# Install manual pages (optional).
case $manpages in
no) ;;
*) (
cd man || exit 1
for dir in man?
do test -d $MANPAGES/$dir || mkdir -p $MANPAGES/$dir || exit 1
done
for file in `censored_ls man?/*`
do
(test -f $MANPAGES/$file && cmp -s $file $MANPAGES/$file &&
echo Skipping $MANPAGES/$file...) || {
echo Updating $MANPAGES/$file...
rm -f $MANPAGES/$file
cp $file $MANPAGES/$file || exit 1
chmod 644 $MANPAGES/$file || exit 1
}
done
)
esac
test "$need_config" = 1 || exit 0
ALIASES=`bin/postconf -h alias_database | sed 's/^[^:]*://'`
cat <<EOF 1>&2
Warning: you still need to edit myorigin/mydestination/mynetworks
in $CONFIG_DIRECTORY/main.cf. See also html/faq.html for dialup
sites or for sites inside a firewalled network.
BTW: Check your $ALIASES file and be sure to set up aliases
for root and postmaster that direct mail to a real person, then
run $NEWALIASES_PATH.
EOF
exit 0
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