Add getty pkg

Signed-off-by: Avi Deitcher <avi@deitcher.net>

pkg/getty/usr/bin/rungetty.sh

@@ -0,0 +1,61 @@
+#!/bin/sh
+set -x
+
+infinite_loop() {
+	while true; do
+		$@
+	done
+}
+
+# run getty on all known consoles - except those already in inittab
+start_getty() {
+	tty=${1%,*}
+	speed=${1#*,}
+	inittab="$2"
+	securetty="$3"
+	line=
+	term="linux"
+	[ "$speed" = "$1" ] && speed=115200
+
+	case "$tty" in
+	ttyS*|ttyAMA*|ttyUSB*|ttyMFD*)
+		line="-L"
+		term="vt100"
+		;;
+	tty?)
+		line=""
+		speed="38400"
+		term=""
+		;;
+	esac
+
+	# are we secure or insecure?
+	loginargs=
+	if [ "$INSECURE" == "true" ]; then
+		loginargs="-n -l /bin/sh"
+	fi
+
+	if ! grep -q -w "$tty" "$securetty"; then
+		echo "$tty" >> "$securetty"
+	fi
+	# respawn forever
+	infinite_loop setsid -w /sbin/getty $loginargs $line $speed $tty $term &
+}
+
+# check if we have /etc/getty.shadow
+ROOTSHADOW=/hostroot/etc/getty.shadow
+if [ -f $ROOTSHADOW ]; then
+	cp $ROOTSHADOW /etc/shadow
+	# just in case someone forgot a newline
+	echo >> /etc/shadow
+fi
+
+for opt in $(cat /proc/cmdline); do
+	case "$opt" in
+	console=*)
+		start_getty ${opt#console=} /etc/inittab /etc/securetty
+	esac
+done
+
+# wait for all our child process to exit; tini will handle subreaping, if necessary
+wait