libexec/rc/rc.d/motd

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