xref: /freebsd/libexec/rc/rc.d/motd (revision d0b2dbfa0ecf2bbc9709efc5e20baf8e4b44bbbf)
1#!/bin/sh
2#
3#
4
5# PROVIDE: motd
6# REQUIRE: mountcritremote FILESYSTEMS
7# BEFORE:  LOGIN
8
9. /etc/rc.subr
10
11name="motd"
12desc="Update /var/run/motd"
13rcvar="update_motd"
14start_cmd="motd_start"
15stop_cmd=":"
16
17COMPAT_MOTD="/etc/motd"
18TARGET="/var/run/motd"
19TEMPLATE="/etc/motd.template"
20PERMS="644"
21
22motd_start()
23{
24	#	Update kernel info in /var/run/motd
25	#	Must be done *before* interactive logins are possible
26	#	to prevent possible race conditions.
27	#
28	startmsg -n 'Updating motd:'
29	if [ ! -f "${TEMPLATE}" ]; then
30		# Create missing template from existing regular motd file, if
31		# one exists.
32		if [ -f "${COMPAT_MOTD}" ]; then
33			sed '1{/^FreeBSD.*/{d;};};' "${COMPAT_MOTD}" > "${TEMPLATE}"
34			chmod $PERMS "${TEMPLATE}"
35			rm -f "${COMPAT_MOTD}"
36		else
37			# Otherwise, create an empty template file.
38			install -c -o root -g wheel -m ${PERMS} /dev/null "${TEMPLATE}"
39		fi
40	fi
41	# Provide compatibility symlink:
42	if [ ! -h "${COMPAT_MOTD}" ]; then
43		ln -sF "${TARGET}" "${COMPAT_MOTD}"
44	fi
45
46	T=`mktemp -t motd`
47	uname -v | sed -e 's,^\([^#]*\) #\(.* [1-2][0-9][0-9][0-9]\).*/\([^\]*\)$,\1 (\3) #\2,' \
48	    -e 's,^\([^ ]*\) \([^ ]*\) \([^ ]*\) \([^ ]*\)$,\1 \2 (\4) \3,' > ${T}
49	cat "${TEMPLATE}" >> ${T}
50
51	install -C -o root -g wheel -m "${PERMS}" "$T" "${TARGET}"
52	rm -f "$T"
53
54	startmsg '.'
55}
56
57load_rc_config $name
58run_rc_command "$1"
59