Eric Lee / smarc-fsl-linux-kernel

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Documentation/s390/config3270.sh 1.96 KB
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1da177e4c   Linus Torvalds   Linux-2.6.12-rc2 
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  #!/bin/sh
  #
  # config3270 -- Autoconfigure /dev/3270/* and /etc/inittab
  #
  #       Usage:
  #               config3270
  #
  #       Output:
  #               /tmp/mkdev3270
  #
  #       Operation:
  #               1. Run this script
  #               2. Run the script it produces: /tmp/mkdev3270
  #               3. Issue "telinit q" or reboot, as appropriate.
  #
  P=/proc/tty/driver/tty3270
  ROOT=
  D=$ROOT/dev
  SUBD=3270
  TTY=$SUBD/tty
  TUB=$SUBD/tub
  SCR=$ROOT/tmp/mkdev3270
  SCRTMP=$SCR.a
  GETTYLINE=:2345:respawn:/sbin/mingetty
  INITTAB=$ROOT/etc/inittab
  NINITTAB=$ROOT/etc/NEWinittab
  OINITTAB=$ROOT/etc/OLDinittab
  ADDNOTE=\\"# Additional mingettys for the 3270/tty* driver, tub3270 ---\\"
  
  if ! ls $P > /dev/null 2>&1; then
  	modprobe tub3270 > /dev/null 2>&1
  fi
  ls $P > /dev/null 2>&1 || exit 1
  
  # Initialize two files, one for /dev/3270 commands and one
  # to replace the /etc/inittab file (old one saved in OLDinittab)
  echo "#!/bin/sh" > $SCR || exit 1
  echo " " >> $SCR
  echo "# Script built by /sbin/config3270" >> $SCR
  if [ ! -d /dev/dasd ]; then
  	echo rm -rf "$D/$SUBD/*" >> $SCR
  fi
  echo "grep -v $TTY $INITTAB > $NINITTAB" > $SCRTMP || exit 1
  echo "echo $ADDNOTE >> $NINITTAB" >> $SCRTMP
  if [ ! -d /dev/dasd ]; then
  	echo mkdir -p $D/$SUBD >> $SCR
  fi
  
  # Now query the tub3270 driver for 3270 device information
  # and add appropriate mknod and mingetty lines to our files
  echo what=config > $P
  while read devno maj min;do
  	if [ $min = 0 ]; then
  		fsmaj=$maj
  		if [ ! -d /dev/dasd ]; then
  			echo mknod $D/$TUB c $fsmaj 0 >> $SCR
  			echo chmod 666 $D/$TUB >> $SCR
  		fi
  	elif [ $maj = CONSOLE ]; then
  		if [ ! -d /dev/dasd ]; then
  			echo mknod $D/$TUB$devno c $fsmaj $min >> $SCR
  		fi
  	else
  		if [ ! -d /dev/dasd ]; then
  			echo mknod $D/$TTY$devno c $maj $min >>$SCR
  			echo mknod $D/$TUB$devno c $fsmaj $min >> $SCR
  		fi
  		echo "echo t$min$GETTYLINE $TTY$devno >> $NINITTAB" >> $SCRTMP
  	fi
  done < $P
  
  echo mv $INITTAB $OINITTAB >> $SCRTMP || exit 1
  echo mv $NINITTAB $INITTAB >> $SCRTMP
  cat $SCRTMP >> $SCR
  rm $SCRTMP
  exit 0