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authorRichard Purdie <richard@openedhand.com>2005-08-31 10:45:47 +0000
committerRichard Purdie <richard@openedhand.com>2005-08-31 10:45:47 +0000
commit4b46c1f6e891b1ddd5968536440b888661fade3e (patch)
treee0ba2c1f56f61b868bf746da5c4feabb25b800b2 /openembedded/packages/initscripts/initscripts-1.0/urandom
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Initial population
git-svn-id: https://svn.o-hand.com/repos/poky@1 311d38ba-8fff-0310-9ca6-ca027cbcb966
Diffstat (limited to 'openembedded/packages/initscripts/initscripts-1.0/urandom')
-rwxr-xr-xopenembedded/packages/initscripts/initscripts-1.0/urandom41
1 files changed, 41 insertions, 0 deletions
diff --git a/openembedded/packages/initscripts/initscripts-1.0/urandom b/openembedded/packages/initscripts/initscripts-1.0/urandom
new file mode 100755
index 000000000..45c41d758
--- /dev/null
+++ b/openembedded/packages/initscripts/initscripts-1.0/urandom
@@ -0,0 +1,41 @@
+#! /bin/sh
+#
+# urandom This script saves the random seed between reboots.
+# It is called from the boot, halt and reboot scripts.
+#
+# Version: @(#)urandom 1.33 22-Jun-1998 miquels@cistron.nl
+#
+
+test -c /dev/urandom || exit 0
+. /etc/default/rcS
+
+case "$1" in
+ start|"")
+ test "$VERBOSE" != no && echo "Initializing random number generator..."
+ # Load and then save 512 bytes,
+ # which is the size of the entropy pool
+ if test -f /var/lib/urandom/random-seed
+ then
+ cat /var/lib/urandom/random-seed >/dev/urandom
+ fi
+ rm -f /var/lib/urandom/random-seed
+ umask 077
+ dd if=/dev/urandom of=/var/lib/urandom/random-seed count=1 \
+ >/dev/null 2>&1 || echo "urandom start: failed."
+ umask 022
+ ;;
+ stop)
+ # Carry a random seed from shut-down to start-up;
+ # see documentation in linux/drivers/char/random.c
+ test "$VERBOSE" != no && echo "Saving random seed..."
+ umask 077
+ dd if=/dev/urandom of=/var/lib/urandom/random-seed count=1 \
+ >/dev/null 2>&1 || echo "urandom stop: failed."
+ ;;
+ *)
+ echo "Usage: urandom {start|stop}" >&2
+ exit 1
+ ;;
+esac
+
+exit 0