#!/bin/sh

if [ -f /etc/mailer.conf.sendmail ]; then
    if [ -f /etc/mailer.conf ]; then
	if mv -f /etc/mailer.conf /etc/mailer.conf.pre-sendmail; then
            echo "old /etc/mailer.conf saved as" \
		"/etc/mailer.conf.pre-sendmail" >&2
	else
	    echo "failed to save current mailer.conf" >&2
	    exit 1
	fi
    fi
    if mv -f /etc/mailer.conf.sendmail /etc/mailer.conf; then
        echo "sendmail /etc/mailer.conf enabled" >&2
    else
	echo "failed to enable sendmail in /etc/mailer.conf" >&2
	exit 1
    fi
else
    echo "can't find /etc/mailer.conf.sendmail, sendmail not enabled" >&2
    exit 1
fi