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authorJuan RP <xtraeme@voidlinux.eu>2015-05-11 16:58:20 +0200
committerJuan RP <xtraeme@voidlinux.eu>2015-05-11 16:58:20 +0200
commit4bb1c55f3390bbcb0e11b4ab44299ae06d89b888 (patch)
tree1bd6e48a97d4bc9e43c621a01d614d5ce27f5642 /3
parentd111a61fbd67ccf1b29f0707526025440fbf51be (diff)
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Find out size of the saved random-seed via /proc/sys/kernel/random/poolsize. 20150511.1
This is what the random(4) manual page recommends, and hopefully should improve
entropy reading from /dev/{u,}random.
Diffstat (limited to '3')
-rwxr-xr-x32
1 files changed, 1 insertions, 1 deletions
diff --git a/3 b/3
index 13c96b1..42d6c22 100755
--- a/3
+++ b/3
@@ -19,7 +19,7 @@ sv exit /var/service/*
 [ -x /etc/rc.shutdown ] && /etc/rc.shutdown
 
 msg "Saving random seed..."
-( umask 077; dd if=/dev/urandom of=/var/lib/random-seed count=1 bs=512 >/dev/null 2>&1 )
+( umask 077; bytes=$(cat /proc/sys/kernel/random/poolsize) || bytes=512; dd if=/dev/urandom of=/var/lib/random-seed count=1 bs=$bytes >/dev/null 2>&1 )
 
 if [ -z "$VIRTUALIZATION" -a -n "$HARDWARECLOCK" ]; then
     hwclock --systohc ${HARDWARECLOCK:+--$(echo $HARDWARECLOCK |tr A-Z a-z)}