Documentation/s390/config3270.sh

   1 #!/bin/sh
   2 #
   3 # config3270 -- Autoconfigure /dev/3270/* and /etc/inittab
   4 #
   5 #       Usage:
   6 #               config3270
   7 #
   8 #       Output:
   9 #               /tmp/mkdev3270
  10 #
  11 #       Operation:
  12 #               1. Run this script
  13 #               2. Run the script it produces: /tmp/mkdev3270
  14 #               3. Issue "telinit q" or reboot, as appropriate.
  15 #
  16 P=/proc/tty/driver/tty3270
  17 ROOT=
  18 D=$ROOT/dev
  19 SUBD=3270
  20 TTY=$SUBD/tty
  21 TUB=$SUBD/tub
  22 SCR=$ROOT/tmp/mkdev3270
  23 SCRTMP=$SCR.a
  24 GETTYLINE=:2345:respawn:/sbin/mingetty
  25 INITTAB=$ROOT/etc/inittab
  26 NINITTAB=$ROOT/etc/NEWinittab
  27 OINITTAB=$ROOT/etc/OLDinittab
  28 ADDNOTE=\\"# Additional mingettys for the 3270/tty* driver, tub3270 ---\\"
  29
  30 if ! ls $P > /dev/null 2>&1; then
  31         modprobe tub3270 > /dev/null 2>&1
  32 fi
  33 ls $P > /dev/null 2>&1 || exit 1
  34
  35 # Initialize two files, one for /dev/3270 commands and one
  36 # to replace the /etc/inittab file (old one saved in OLDinittab)
  37 echo "#!/bin/sh" > $SCR || exit 1
  38 echo " " >> $SCR
  39 echo "# Script built by /sbin/config3270" >> $SCR
  40 if [ ! -d /dev/dasd ]; then
  41         echo rm -rf "$D/$SUBD/*" >> $SCR
  42 fi
  43 echo "grep -v $TTY $INITTAB > $NINITTAB" > $SCRTMP || exit 1
  44 echo "echo $ADDNOTE >> $NINITTAB" >> $SCRTMP
  45 if [ ! -d /dev/dasd ]; then
  46         echo mkdir -p $D/$SUBD >> $SCR
  47 fi
  48
  49 # Now query the tub3270 driver for 3270 device information
  50 # and add appropriate mknod and mingetty lines to our files
  51 echo what=config > $P
  52 while read devno maj min;do
  53         if [ $min = 0 ]; then
  54                 fsmaj=$maj
  55                 if [ ! -d /dev/dasd ]; then
  56                         echo mknod $D/$TUB c $fsmaj 0 >> $SCR
  57                         echo chmod 666 $D/$TUB >> $SCR
  58                 fi
  59         elif [ $maj = CONSOLE ]; then
  60                 if [ ! -d /dev/dasd ]; then
  61                         echo mknod $D/$TUB$devno c $fsmaj $min >> $SCR
  62                 fi
  63         else
  64                 if [ ! -d /dev/dasd ]; then
  65                         echo mknod $D/$TTY$devno c $maj $min >>$SCR
  66                         echo mknod $D/$TUB$devno c $fsmaj $min >> $SCR
  67                 fi
  68                 echo "echo t$min$GETTYLINE $TTY$devno >> $NINITTAB" >> $SCRTMP
  69         fi
  70 done < $P
  71
  72 echo mv $INITTAB $OINITTAB >> $SCRTMP || exit 1
  73 echo mv $NINITTAB $INITTAB >> $SCRTMP
  74 cat $SCRTMP >> $SCR
  75 rm $SCRTMP
  76 exit 0