blob: 68af5cc20a641f638166a7b3d3de70d0f16e5613 [file] [log] [blame]
Kees Cook313dd1b62017-05-05 23:37:45 -07001#!/bin/sh
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01002# SPDX-License-Identifier: GPL-2.0
Kees Cook313dd1b62017-05-05 23:37:45 -07003
4if [ ! -f "$1" ]; then
5 SEED=`od -A n -t x8 -N 32 /dev/urandom | tr -d ' \n'`
6 echo "const char *randstruct_seed = \"$SEED\";" > "$1"
7 HASH=`echo -n "$SEED" | sha256sum | cut -d" " -f1 | tr -d ' \n'`
8 echo "#define RANDSTRUCT_HASHED_SEED \"$HASH\"" > "$2"
9fi