From 696934b123f0a9135cf662fd8cdcc4a6dd4e7568 Mon Sep 17 00:00:00 2001
From: Frank Denis <github@pureftpd.org>
Date: Mon, 21 Oct 2013 21:07:39 -0700
Subject: [PATCH] _sodium_alignedcalloc(): use arc4random_buf() if available

---
 src/libsodium/sodium/utils.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/libsodium/sodium/utils.c b/src/libsodium/sodium/utils.c
index 74fc2d86..7026b497 100644
--- a/src/libsodium/sodium/utils.c
+++ b/src/libsodium/sodium/utils.c
@@ -54,9 +54,14 @@ _sodium_alignedcalloc(unsigned char ** const unaligned_p, const size_t len)
         return NULL;
     }
     *unaligned_p = unaligned;
+#ifdef HAVE_ARC4RANDOM
+    (void) i;
+    arc4random_buf(unaligned, len + (size_t) 256U);
+#else
     for (i = (size_t) 0U; i < len + (size_t) 256U; ++i) {
         unaligned[i] = (unsigned char) rand();
     }
+#endif
     aligned = unaligned + 64;
     aligned += (ptrdiff_t) 63 & (-(ptrdiff_t) aligned);
     memset(aligned, 0, len);