From 3df3e884ae1237ef0d4d23b0e80f4ffda95ac135 Mon Sep 17 00:00:00 2001 From: Ronny Chevalier Date: Fri, 10 Apr 2015 22:27:10 +0200 Subject: shared: add random-util.[ch] --- src/shared/random-util.h | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 src/shared/random-util.h (limited to 'src/shared/random-util.h') diff --git a/src/shared/random-util.h b/src/shared/random-util.h new file mode 100644 index 0000000000..f7862c8c8b --- /dev/null +++ b/src/shared/random-util.h @@ -0,0 +1,38 @@ +#pragma once + +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include + +int dev_urandom(void *p, size_t n); +void random_bytes(void *p, size_t n); +void initialize_srand(void); + +static inline uint64_t random_u64(void) { + uint64_t u; + random_bytes(&u, sizeof(u)); + return u; +} + +static inline uint32_t random_u32(void) { + uint32_t u; + random_bytes(&u, sizeof(u)); + return u; +} -- cgit v1.2.3-54-g00ecf