initscripts: parametrize random seed file location

Currently, the random seed file location is hardcoded to
/var/lib/urandom/random-seed.  Refactor it to a parameter
(RANDOM_SEED_FILE) so the file location is defined in only one place.

(From OE-Core rev: 558ba23cfdd60bf64b9214460a2772be70079796)

Signed-off-by: Richard Tollerton <rich.tollerton@ni.com>
Signed-off-by: Ben Shelton <ben.shelton@ni.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 5 deletions

diff --git a/meta/recipes-core/initscripts/initscripts-1.0/urandom b/meta/recipes-core/initscripts/initscripts-1.0/urandom
index eb3a7c3359..a0549dec25 100755
--- a/meta/recipes-core/initscripts/initscripts-1.0/urandom
+++ b/meta/recipes-core/initscripts/initscripts-1.0/urandom
@@ -12,6 +12,9 @@
 ### END INIT INFO
 
 test -c /dev/urandom || exit 0
+
+RANDOM_SEED_FILE=/var/lib/urandom/random-seed
+
 . /etc/default/rcS
 
 case "$1" in
@@ -19,13 +22,13 @@ case "$1" in
                 test "$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
+                if test -f "$RANDOM_SEED_FILE"
                 then
-                        cat /var/lib/urandom/random-seed >/dev/urandom
+                        cat "$RANDOM_SEED_FILE" >/dev/urandom
                 fi
-                rm -f /var/lib/urandom/random-seed
+                rm -f "$RANDOM_SEED_FILE"
                 umask 077
-                dd if=/dev/urandom of=/var/lib/urandom/random-seed count=1 \
+                dd if=/dev/urandom of=$RANDOM_SEED_FILE count=1 \
                         >/dev/null 2>&1 || echo "urandom start: failed."
                 umask 022
                 ;;
@@ -34,7 +37,7 @@ case "$1" in
                 # see documentation in linux/drivers/char/random.c
                 test "$VERBOSE" != no && echo "Saving random seed..."
                 umask 077
-                dd if=/dev/urandom of=/var/lib/urandom/random-seed count=1 \
+                dd if=/dev/urandom of=$RANDOM_SEED_FILE count=1 \
                         >/dev/null 2>&1 || echo "urandom stop: failed."
                 ;;
         *)