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#!/bin/sh
#
# $FreeBSD: /tmp/pcvs/ports/mail/courier/Attic/pkg-install,v 1.2 2002-01-30 03:56:07 pat Exp $
#

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

ask() {
    local question default answer

    question=$1
    default=$2
    if [ -z "${PACKAGE_BUILDING}" ]; then
        read -p "${question} [${default}]? " answer
    fi
    if [ x${answer} = x ]; then
        answer=${default}
    fi
    echo ${answer}
}

yesno() {
    local question default answer

    question=$1
    default=$2
    while :; do
        answer=$(ask "${question}" "${default}")
        case "${answer}" in
        [Yy]*)	return 0;;
        [Nn]*)	return 1;;
        esac
        echo "Please answer yes or no."
    done
}

replace() {
    local orig repl
    
    orig=$1
    repl=$2
    if [ -e ${orig} ]; then
        mv -f ${orig} ${orig}.OFF
        chmod 0 ${orig}.OFF
    fi
    if [ -e ${repl} ]; then
        ln -s ${repl} ${orig}
    fi
}

if [ x"$2" = xPRE-INSTALL ]; then
    USER=courier;	UID=62
    GROUP=courier;	GID=62

    if /usr/sbin/pw groupshow "${GROUP}" 2>/dev/null; then
        echo "You already have a group \"${GROUP}\", so I will use it."
    else
        if /usr/sbin/pw groupadd ${GROUP} -g ${GID} -h -
	then
	    echo "Added group \"${GROUP}\"."
	else
	    echo "Adding group \"${GROUP}\" failed..."
            echo "Please create it, and try again."
            exit 1
        fi
    fi

    if /usr/sbin/pw user show "${USER}" 2>/dev/null; then
        echo "You already have a user \"${USER}\", so I will use it."
    else
        if /usr/sbin/pw useradd ${USER} -u ${UID} -g ${GROUP} -h - \
           -d /var/spool/courier \
           -s /sbin/nologin \
           -c "Courier Mail System"
	then
	    echo "Added user \"${USER}\"."
	else
	    echo "Adding user \"${USER}\" failed..."
            echo "Please create it, and try again."
            exit 1
        fi
    fi
fi

if [ x"$2" = xPOST-INSTALL -a -z "${PACKAGE_BUILDING}" ]; then
    if [ -x /sbin/sysctl ]; then
        OSVERSION=`/sbin/sysctl -n kern.osreldate`
    else
        OSVERSION=`/usr/sbin/sysctl -n kern.osreldate`
    fi
    if [ ${OSVERSION} -ge 400014 ]; then
        if yesno "Would you like to activate Courier in /etc/mail/mailer.conf" n; then
            mv -f /etc/mail/mailer.conf /etc/mail/mailer.conf.old
            echo "#"						>  /etc/mail/mailer.conf
            echo -n "# Execute the Courier sendmail program"	>> /etc/mail/mailer.conf
            echo ", named ${PKG_PREFIX}/bin/sendmail"		>> /etc/mail/mailer.conf
            echo "#"						>> /etc/mail/mailer.conf
            echo "sendmail	${PKG_PREFIX}/bin/sendmail"	>> /etc/mail/mailer.conf
            echo "send-mail	${PKG_PREFIX}/bin/sendmail"	>> /etc/mail/mailer.conf
            echo "mailq		${PKG_PREFIX}/bin/mailq"	>> /etc/mail/mailer.conf
            echo "newaliases	${PKG_PREFIX}/sbin/makealiases"	>> /etc/mail/mailer.conf
            echo "Done."
        fi
    else
        if yesno "Would you like to replace {sendmail,mailq,newaliases} with Courier versions" n; then
            replace /usr/sbin/sendmail	${PKG_PREFIX}/bin/sendmail
            replace /usr/bin/mailq	${PKG_PREFIX}/bin/mailq
            replace /usr/bin/newaliases	${PKG_PREFIX}/sbin/makealiases
            echo "Done."
        fi
    fi
fi