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