diff options
Diffstat (limited to 'init.d/urandom')
| -rwxr-xr-x | init.d/urandom | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/init.d/urandom b/init.d/urandom index a09153a5..b901d6d8 100755 --- a/init.d/urandom +++ b/init.d/urandom @@ -6,6 +6,17 @@ depend() { need localmount } +save_seed() { + local poolsize=1 + + if [ -e /proc/sys/kernel/random/poolsize ] ; then + poolsize=$(($(cat /proc/sys/kernel/random/poolsize) / 4096)) + fi + + umask 077 + dd if=/dev/urandom of=/var/run/random-seed count=${poolsize} 2>/dev/null +} + start() { [ -c /dev/urandom ] || return if [ -f /var/run/random-seed ] ; then @@ -16,8 +27,7 @@ start() { return 0 fi ebegin "Initializing random number generator" - umask 077 - dd if=/dev/urandom of=/var/run/random-seed count=1 2>/dev/null + save_seed eend $? "Error initializing random number generator" umask 022 } @@ -26,9 +36,8 @@ stop() { ebegin "Saving random seed" # Carry a random seed from shut-down to start-up; # see documentation in linux/drivers/char/random.c - umask 077 - dd if=/dev/urandom of=/var/run/random-seed count=1 2>/dev/null + save_seed eend $? "Failed to save random seed" } -# vim:ts=4 +# vim: set ts=4 : |