#!/bin/sh
export PATH="/bin:/sbin:/usr/bin:/usr/sbin"
export HOME='/root'
export PS1='\w \h\$ '
HOSTNAME='minlin'
UDHCPC_ARGS=

mkdir -p /dev /proc /sys
mount -t devtmpfs devtmpfs /dev -o size=4k
mount -t proc     proc     /proc
mount -t sysfs    sysfs    /sys
mount -t debugfs  debugfs  /sys/kernel/debug

if [ x"$(command -v klogd)" != x ]; then
	$(command -v klogd)
fi
if [ x"$(command -v syslogd)" != x ]; then
	$(command -v syslogd) -C
	UDHCPC_ARGS='-S'
fi

echo '4 4 1 7' >/proc/sys/kernel/printk
cat <<EOF


Boot took $(cut -d' ' -f1 /proc/uptime) seconds

         _       _     __ _                   
   /\/\ (_)_ __ (_)   / /(_)_ __  _   ___  __ 
  /    \| | '_ \| |  / / | | '_ \| | | \ \/ / 
 / /\/\ \ | | | | | / /__| | | | | |_| |>  <  $(uname -r)
 \/    \/_|_| |_|_| \____/_|_| |_|\__,_/_/\_\ 

musl $(/lib/ld-musl-x86_64.so.1 2>&1 | sed -n 's/^Version \(.*\)$/\1/gp')
$(busybox | head -1)

EOF

for arg in $(cat /proc/cmdline | tr '[:upper:]' '[:lower:]'); do
	case $arg in
		net|net=*)
			if [ x"$(command -v udhcpc)" != x ]; then
				if [ x"${arg#net}" = x ]; then
					for netif in $(ls /sys/class/net); do
						ifconfig ${netif} up
					done
				else
					NETIF="${arg#net=}"
					echo "dhcp interface: ${NETIF}"
					ifconfig ${NETIF} up
				fi
				$(command -v udhcpc) -R -x hostname:${HOSTNAME} -t 4 -n ${UDHCPC_ARGS}
			else
				echo 'net: Missing udhcpc'
			fi
		;;
		keymap=*)
			KEYMAP="/usr/share/keymaps/${arg#keymap=}.bmap"
			if [ -r "${KEYMAP}" ]; then
				echo "KEYMAP=${KEYMAP}"
				loadkmap <"${KEYMAP}"
			else
				echo "keymap: Invalid path '${KEYMAP}'"
			fi
		;;
	esac
done

resize
hostname ${HOSTNAME}
cd ${HOME}
setsid cttyhack sh
poweroff -f