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authorLuke Shumaker <lukeshu@sbcglobal.net>2016-06-01 15:59:00 -0400
committerLuke Shumaker <lukeshu@sbcglobal.net>2016-06-01 15:59:00 -0400
commit7f44fd8adbebc3ec21f3871d9ee04f6056398759 (patch)
treed18e26311cb7dc85ae4ee9fd946f2367705f48db /src/libbasic/random-util.h
parent210548eeed2cca68cf62707388b8bba2eda66afb (diff)
./move.sh
Diffstat (limited to 'src/libbasic/random-util.h')
-rw-r--r--src/libbasic/random-util.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/libbasic/random-util.h b/src/libbasic/random-util.h
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+++ b/src/libbasic/random-util.h
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+#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 <http://www.gnu.org/licenses/>.
+***/
+
+#include <stddef.h>
+#include <stdint.h>
+
+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;
+}