>Number:         35274
>Category:       misc
>Synopsis:       rc script for seeding /dev/random
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    misc-bug-people
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Mon Dec 18 23:30:00 +0000 2006
>Originator:     Denis Lagno
>Release:        NetBSD 4.99.3
>Organization:
>Environment:
>Description:
it would be nice to add rc script for seeding /dev/random on boot

>How-To-Repeat:
>Fix:
/etc/rc.d/randseed:

#!/bin/sh

# REQUIRE: mountcritlocal
# BEFORE: sshd xdm
# PROVIDE: randseed
# KEYWORD: shutdown

$_rc_subr_loaded . /etc/rc.subr

name="randseed"
rcvar=$name
start_cmd="randseed_start"
stop_cmd="randseed_stop"

randseed_file=${randseed_file:-/var/db/randseed}
randseed_size=${randseed_size:-4}

dump_randseed()
{
	cat < /dev/null > $randseed_file
	chmod 600 $randseed_file
	dd if=/dev/urandom of=$randseed_file bs=1024 count=$randseed_size 2> /dev/null
}

randseed_start()
{
	if [ -f $randseed_file ]; then
		echo "Seeding /dev/random"
		cat $randseed_file > /dev/random 2> /dev/null
	fi
	dump_randseed
}

randseed_stop()
{
	echo "Saving seed for /dev/random"
	dump_randseed
}

load_rc_config $name
run_rc_command "$1"