source: bootscripts-standard/bootscripts/cblfs/init.d/random

#!/bin/bash
# Begin $rc_base/init.d/random

# Based on sysklogd script from LFS-3.1 and earlier.
# Rewritten by Gerard Beekmans  - gerard@linuxfromscratch.org
# Random script elements by Larry Lawrence

#$LastChangedBy: bdubbs $
#$Date: 2005-08-01 14:29:19 -0500 (Mon, 01 Aug 2005) $

. /etc/sysconfig/rc
. $rc_functions

case "$1" in
        start)
                boot_mesg "Initializing kernel random number generator..."
                if [ -f /var/tmp/random-seed ]; then
                        /bin/cat /var/tmp/random-seed >/dev/urandom
                fi
                /bin/dd if=/dev/urandom of=/var/tmp/random-seed \
                        count=1 &>/dev/null
                evaluate_retval
                ;;

        stop)
                boot_mesg "Saving random seed..."
                /bin/dd if=/dev/urandom of=/var/tmp/random-seed \
                        count=1 &>/dev/null
                evaluate_retval
                ;;

        *)
                echo "Usage: $0 {start|stop}"
                exit 1
                ;;
esac

# End $rc_base/init.d/random