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#!/bin/sh
#
# Since FreeBSD does not supply a user for running an MTA in a sandbox
# by default, use user 'exim', adding it if it does not exist.  Even
# if FreeBSD supplied an MTA user, it's neglected to do so for so long
# that every sandboxed MTA under the sun uses its own user, so user
# 'exim' should probably be used forever.
#
# Modern FreeBSD systems already have a group mail.
#
# $FreeBSD$
#

PKG_PREFIX=${PKG_PREFIX:=/usr/local}

user=mailnull
group=mail

if [ "$2" = "PRE-INSTALL" ]; then
    if ! /usr/bin/id ${user} > /dev/null; then
        echo "Exim requires user ${user}.  Please update your system." 1>&2
        exit 1
    fi
    if ! /usr/bin/grep -q "^${group}:" < /etc/group; then
        echo "Exim requires group ${group}.  Please update your system." 1>&2
        exit 1
    fi
fi

if [ "$2" = "POST-INSTALL" ]; then
    cf=$PKG_PREFIX/etc/exim/configure
    if [ -e $cf ]; then
        if grep -q '^[^#]*hostlist.*relay_from_hosts.*=.*127.0.0.1' $cf
            then
            echo
            echo "============================================================"
            echo "                     !!! WARNING !!!                        "
            echo "============================================================"
            echo
            echo "Existing configure file $cf"
            echo "contains 127.0.0.1 in relay_from_hosts hostlist!"
            echo "Use of localhost instead of 127.0.0.1 is highly recommended."
            echo
            echo "============================================================"
            echo "                     !!! WARNING !!!                        "
            echo "============================================================"
        fi
    fi
    if ! grep -qs "^exim_enable" /etc/rc.conf
        then
        echo
        echo "Don't forget to add 'exim_enable=\"YES\"' to rc.conf(5)"
        echo
    fi
fi