mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-29 14:39:33 +02:00
4a78f61b44
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20392 3c298f89-4303-0410-b956-a3cf2f4a3e73
86 lines
2.0 KiB
Bash
86 lines
2.0 KiB
Bash
#!/bin/sh
|
|
# Copyright (C) 2006-2010 OpenWrt.org
|
|
# Copyright (C) 2010 Vertical Communications
|
|
|
|
fs_wait_for_key () {
|
|
local timeout=$3
|
|
local timer
|
|
local do_failsafe
|
|
local keypress_true="$(mktemp)"
|
|
local keypress_wait="$(mktemp)"
|
|
local keypress_sec="$(mktemp)"
|
|
if [ -z "$keypress_wait" ]; then
|
|
keypress_wait=/tmp/.keypress_wait
|
|
touch $keypress_wait
|
|
fi
|
|
if [ -z "$keypress_true" ]; then
|
|
keypress_true=/tmp/.keypress_true
|
|
touch $keypress_true
|
|
fi
|
|
if [ -z "$keypress_sec" ]; then
|
|
keypress_sec=/tmp/.keypress_sec
|
|
touch $keypress_sec
|
|
fi
|
|
|
|
trap "echo 'true' >$keypress_true; lock -u $keypress_wait ; rm -f $keypress_wait" INT
|
|
trap "echo 'true' >$keypress_true; lock -u $keypress_wait ; rm -f $keypress_wait" USR1
|
|
|
|
[ -n "$timeout" ] || timeout=1
|
|
[ $timeout -ge 1 ] || timeout=1
|
|
timer=$timeout
|
|
lock $keypress_wait
|
|
{
|
|
while [ $timer -gt 0 ]; do
|
|
echo "$timer" >$keypress_sec
|
|
timer=$(($timer - 1))
|
|
sleep 1
|
|
done
|
|
lock -u $keypress_wait
|
|
rm -f $keypress_wait
|
|
} &
|
|
|
|
echo "Press the [$1] key and hit [enter] $2"
|
|
# if we're on the console we wait for input
|
|
{
|
|
while [ -r $keypress_wait ]; do
|
|
timer="$(cat $keypress_sec)"
|
|
|
|
[ -n "$timer" ] || timer=1
|
|
timer="${timer%%\ *}"
|
|
[ $timer -ge 1 ] || timer=1
|
|
do_failsafe=""
|
|
{
|
|
read -t "$timer" do_failsafe
|
|
if [ "$do_failsafe" = "$1" ]; then
|
|
echo "true" >$keypress_true
|
|
lock -u $keypress_wait
|
|
rm -f $keypress_wait
|
|
fi
|
|
}
|
|
done
|
|
}
|
|
lock -w $keypress_wait
|
|
|
|
trap - INT
|
|
trap - USR1
|
|
|
|
keypressed=1
|
|
[ "$(cat $keypress_true)" = "true" ] && keypressed=0
|
|
rm -f $keypress_true
|
|
rm -f $keypress_wait
|
|
rm -f $keypress_sec
|
|
|
|
return $keypressed
|
|
}
|
|
|
|
failsafe_wait() {
|
|
FAILSAFE=
|
|
pi_failsafe_net_message=true
|
|
preinit_net_echo "Please press button now to enter failsafe"
|
|
pi_failsafe_net_message=false
|
|
fs_wait_for_key f 'to enter failsafe mode' $fs_failsafe_wait_timeout && FAILSAFE=true && export FAILSAFE
|
|
}
|
|
|
|
boot_hook_add preinit_main failsafe_wait
|
|
|