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
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