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authorRonny Chevalier <chevalier.ronny@gmail.com>2015-04-10 22:27:10 +0200
committerRonny Chevalier <chevalier.ronny@gmail.com>2015-04-11 00:11:13 +0200
commit3df3e884ae1237ef0d4d23b0e80f4ffda95ac135 (patch)
tree630cb996d0cf23429633e4900826aac56d9271ad /src/shared/random-util.h
parent0b452006de98294d1690f045f6ea2f7f6630ec3b (diff)
shared: add random-util.[ch]
Diffstat (limited to 'src/shared/random-util.h')
-rw-r--r--src/shared/random-util.h38
1 files changed, 38 insertions, 0 deletions
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 <http://www.gnu.org/licenses/>.
+***/
+
+#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;
+}