openrc/init.d/urandom.in
William Hubbs 3470eda3f5 Rename runscript to openrc-run
This was requested by Debian, because the minicom software, which is
available on Debian and other distros, has a binary named runscript. We
are keeping a backward compatibility symlink for now, but this allows
Debian or any other distro to safely remove the symlink.

X-Gentoo-Bug: 494220
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=494220
2013-12-29 22:57:31 -06:00

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#!@SBINDIR@/openrc-run
# Copyright (c) 2007-2009 Roy Marples <roy@marples.name>
# Released under the 2-clause BSD license.
: ${urandom_seed:=${URANDOM_SEED:-/var/lib/misc/random-seed}}
description="Initializes the random number generator."
depend()
{
need localmount
keyword -jail -lxc -openvz -prefix
}
save_seed()
{
local psz=1
if [ -e /proc/sys/kernel/random/poolsize ]; then
: $(( psz = $(cat /proc/sys/kernel/random/poolsize) / 4096 ))
fi
( # sub shell to prevent umask pollution
umask 077
dd if=/dev/urandom of="$urandom_seed" count=${psz} 2>/dev/null
)
}
start()
{
[ -c /dev/urandom ] || return
if [ -f "$urandom_seed" ]; then
ebegin "Initializing random number generator"
cat "$urandom_seed" > /dev/urandom
eend $? "Error initializing random number generator"
fi
rm -f "$urandom_seed" && save_seed
return 0
}
stop()
{
ebegin "Saving random seed"
save_seed
eend $? "Failed to save random seed"
}