From 09ff424905d5de0b2a21a3960d9756a90b07ba26 Mon Sep 17 00:00:00 2001
From: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Date: Sun, 22 Mar 2015 14:47:29 +0100
Subject: libc: add getrandom(2)

Introduce a <sys/random.h> for it.

/* FIXME: aren't there a couple of __restrict and const missing ?
 */
extern int getrandom(void *__buf, size_t count, unsigned int flags)
    __nonnull ((1)) __wur;

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
---
 libc/sysdeps/linux/common/sys/random.h | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 libc/sysdeps/linux/common/sys/random.h

(limited to 'libc/sysdeps/linux/common/sys/random.h')

diff --git a/libc/sysdeps/linux/common/sys/random.h b/libc/sysdeps/linux/common/sys/random.h
new file mode 100644
index 000000000..42f802576
--- /dev/null
+++ b/libc/sysdeps/linux/common/sys/random.h
@@ -0,0 +1,33 @@
+/* Copyright (C) 2015 Bernhard Reutner-Fischer
+ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+*/
+
+#ifndef	_SYS_RANDOM_H
+#define	_SYS_RANDOM_H	1
+#include <features.h>
+
+__BEGIN_DECLS
+
+#if defined __UCLIBC_LINUX_SPECIFIC__ && defined __USE_GNU
+# if 0 /*def __ASSUME_GETRANDOM_SYSCALL */
+#  include <linux/random.h>
+# else
+#  undef GRND_NONBLOCK
+#  undef GRND_RANDOM
+/*
+ * Flags for getrandom(2)
+ *
+ * GRND_NONBLOCK	Don't block and return EAGAIN instead
+ * GRND_RANDOM		Use the /dev/random pool instead of /dev/urandom
+ */
+#  define GRND_NONBLOCK	0x0001
+#  define GRND_RANDOM	0x0002
+# endif
+/* FIXME: aren't there a couple of __restrict and const missing ? */
+extern int getrandom(void *__buf, size_t count, unsigned int flags)
+	   __nonnull ((1)) __wur;
+#endif
+
+__END_DECLS
+
+#endif /* sys/random.h */
-- 
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