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| author | Koen Kooi <koen@openembedded.org> | 2005-06-30 08:19:37 +0000 |
|---|---|---|
| committer | OpenEmbedded Project <openembedded-devel@lists.openembedded.org> | 2005-06-30 08:19:37 +0000 |
| commit | c8e5702127e507e82e6f68a4b8c546803accea9d (patch) | |
| tree | 00583491f40ecc640f2b28452af995e3a63a09d7 /packages/initscripts/initscripts-1.0/urandom | |
| parent | 87ec8ca4d2e2eb4d1c1e1e1a6b46a395d56805b9 (diff) | |
import clean BK tree at cset 1.3670
Diffstat (limited to 'packages/initscripts/initscripts-1.0/urandom')
| -rwxr-xr-x[-rw-r--r--] | packages/initscripts/initscripts-1.0/urandom | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/packages/initscripts/initscripts-1.0/urandom b/packages/initscripts/initscripts-1.0/urandom index e69de29bb2..45c41d758b 100644..100755 --- a/packages/initscripts/initscripts-1.0/urandom +++ b/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 |