smgl/simpleinit-msb/telinit

   1 #!/bin/sh
   2
   3 #Copyright (c) 2001 Matthias S. Benkmann
   4 #licensed under the GNU General Public License (GPL) Version 2
   5 #
   6 # Modified for Source Mage GNU/Linux by erics/rycee, 2004-06-30.
   7 #  - removed -u option and checks for root UID as all smgl scripts.
   8 #
   9
  10 if [ $# -eq 0 ]; then
  11   echo 1>&2 Usage: telinit args
  12   echo 1>&2 'telinit calls "bootprog telinit args" where bootprog is the program'
  13   echo 1>&2 'specified in /etc/inittab' .
  14   echo 1>&2 'e.g.: "telinit <number>" might tell bootprog to switch to runlevel <number>'
  15   exit 1
  16 fi
  17
  18 test -p /dev/initctl && touch /dev/initctl 2>/dev/null
  19 perm=$?  #0 if writing to /dev/initctl is permitted
  20
  21 INIT_ROOT=""
  22 PRE_PATH=""
  23
  24 if [ $UID != 0 ]; then
  25         echo "Enter the root password, please."
  26         exec su - -c "DISPLAY=$DISPLAY PATH=$PATH $0 $*"
  27 fi
  28
  29 if [ z"$1" == z"--" ]; then shift 1; fi
  30
  31 get_inittab_entry()
  32 {
  33 #  sed -n s/$'^[ \r\t]*'${1}$'[ \r\t]*=*[ \r\t]*''\('$'[^ \r\t]*''\).*$/\1/p' <$INIT_ROOT/etc/inittab
  34
  35   #echo before cat to get initial newline because the regex needs it
  36   expr "`echo ; cat $INIT_ROOT/etc/inittab`" : $'.*\n[ \r\t]*'${1}$'[ \r\t]*=*[ \r\t]*''\('$'[^ \r\t\n]*''\).*'
  37 }
  38
  39
  40 export INIT_D=$INIT_ROOT`get_inittab_entry fileprefix`
  41 bootprog=`get_inittab_entry bootprog`
  42 export PATH=$PRE_PATH`get_inittab_entry PATH`
  43 export INIT_PATH=`get_inittab_entry INIT_PATH`
  44
  45
  46 $INIT_D$bootprog telinit "$@"