Documentation/s390/config3270.sh

0001 #!/bin/sh
0002 #
0003 # config3270 -- Autoconfigure /dev/3270/* and /etc/inittab
0004 #
0005 #       Usage:
0006 #               config3270
0007 #
0008 #       Output:
0009 #               /tmp/mkdev3270
0010 #
0011 #       Operation:
0012 #               1. Run this script
0013 #               2. Run the script it produces: /tmp/mkdev3270
0014 #               3. Issue "telinit q" or reboot, as appropriate.
0015 #
0016 P=/proc/tty/driver/tty3270
0017 ROOT=
0018 D=$ROOT/dev
0019 SUBD=3270
0020 TTY=$SUBD/tty
0021 TUB=$SUBD/tub
0022 SCR=$ROOT/tmp/mkdev3270
0023 SCRTMP=$SCR.a
0024 GETTYLINE=:2345:respawn:/sbin/mingetty
0025 INITTAB=$ROOT/etc/inittab
0026 NINITTAB=$ROOT/etc/NEWinittab
0027 OINITTAB=$ROOT/etc/OLDinittab
0028 ADDNOTE=\\"# Additional mingettys for the 3270/tty* driver, tub3270 ---\\"
0029
0030 if ! ls $P > /dev/null 2>&1; then
0031         modprobe tub3270 > /dev/null 2>&1
0032 fi
0033 ls $P > /dev/null 2>&1 || exit 1
0034
0035 # Initialize two files, one for /dev/3270 commands and one
0036 # to replace the /etc/inittab file (old one saved in OLDinittab)
0037 echo "#!/bin/sh" > $SCR || exit 1
0038 echo " " >> $SCR
0039 echo "# Script built by /sbin/config3270" >> $SCR
0040 if [ ! -d /dev/dasd ]; then
0041         echo rm -rf "$D/$SUBD/*" >> $SCR
0042 fi
0043 echo "grep -v $TTY $INITTAB > $NINITTAB" > $SCRTMP || exit 1
0044 echo "echo $ADDNOTE >> $NINITTAB" >> $SCRTMP
0045 if [ ! -d /dev/dasd ]; then
0046         echo mkdir -p $D/$SUBD >> $SCR
0047 fi
0048
0049 # Now query the tub3270 driver for 3270 device information
0050 # and add appropriate mknod and mingetty lines to our files
0051 echo what=config > $P
0052 while read devno maj min;do
0053         if [ $min = 0 ]; then
0054                 fsmaj=$maj
0055                 if [ ! -d /dev/dasd ]; then
0056                         echo mknod $D/$TUB c $fsmaj 0 >> $SCR
0057                         echo chmod 666 $D/$TUB >> $SCR
0058                 fi
0059         elif [ $maj = CONSOLE ]; then
0060                 if [ ! -d /dev/dasd ]; then
0061                         echo mknod $D/$TUB$devno c $fsmaj $min >> $SCR
0062                 fi
0063         else
0064                 if [ ! -d /dev/dasd ]; then
0065                         echo mknod $D/$TTY$devno c $maj $min >>$SCR
0066                         echo mknod $D/$TUB$devno c $fsmaj $min >> $SCR
0067                 fi
0068                 echo "echo t$min$GETTYLINE $TTY$devno >> $NINITTAB" >> $SCRTMP
0069         fi
0070 done < $P
0071
0072 echo mv $INITTAB $OINITTAB >> $SCRTMP || exit 1
0073 echo mv $NINITTAB $INITTAB >> $SCRTMP
0074 cat $SCRTMP >> $SCR
0075 rm $SCRTMP
0076 exit 0