freebsd-skq/libexec/rc/rc.d/motd
Conrad Meyer 2826da432c motd: Generate from template to /var/run
Update login(1), its manual pages, similar utilities, and motd.5 to refer to
the new location.

Suggested by:	delphij@ (re: r349256)
Reviewed by:	bcr (manpages), delphij
Differential Revision:	https://reviews.freebsd.org/D20721
2019-07-20 20:56:31 +00:00

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#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: motd
# REQUIRE: mountcritremote FILESYSTEMS
# BEFORE: LOGIN
. /etc/rc.subr
name="motd"
desc="Update /var/run/motd"
rcvar="update_motd"
start_cmd="motd_start"
stop_cmd=":"
COMPAT_MOTD="/etc/motd"
TARGET="/var/run/motd"
TEMPLATE="/etc/motd.template"
PERMS="644"
motd_start()
{
# Update kernel info in /var/run/motd
# Must be done *before* interactive logins are possible
# to prevent possible race conditions.
#
check_startmsgs && echo -n 'Updating motd:'
if [ ! -f "${TEMPLATE}" ]; then
# Create missing template from existing regular motd file, if
# one exists.
if [ -f "${COMPAT_MOTD}" ]; then
sed '1{/^FreeBSD.*/{d;};};' "${COMPAT_MOTD}" > "${TEMPLATE}"
chmod $PERMS "${TEMPLATE}"
rm -f "${COMPAT_MOTD}"
else
# Otherwise, create an empty template file.
install -c -o root -g wheel -m ${PERMS} /dev/null "${TEMPLATE}"
fi
# Provide compatibility symlink:
if [ ! -h "${COMPAT_MOTD}" ]; then
ln -sF "${TARGET}" "${COMPAT_MOTD}"
fi
fi
T=`mktemp -t motd`
uname -v | sed -e 's,^\([^#]*\) #\(.* [1-2][0-9][0-9][0-9]\).*/\([^\]*\) $,\1 (\3) #\2,' > ${T}
cat "${TEMPLATE}" >> ${T}
install -C -o root -g wheel -m "${PERMS}" "$T" "${TARGET}"
rm -f "$T"
check_startmsgs && echo '.'
}
load_rc_config $name
run_rc_command "$1"