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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