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-rw-r--r--src/random.cpp14
1 files changed, 13 insertions, 1 deletions
diff --git a/src/random.cpp b/src/random.cpp
index b308e8f4a1..e07ef44471 100644
--- a/src/random.cpp
+++ b/src/random.cpp
@@ -27,9 +27,12 @@
#include <sys/syscall.h>
#include <linux/random.h>
#endif
-#ifdef HAVE_GETENTROPY
+#if defined(HAVE_GETENTROPY) || (defined(HAVE_GETENTROPY_RAND) && defined(MAC_OSX))
#include <unistd.h>
#endif
+#if defined(HAVE_GETENTROPY_RAND) && defined(MAC_OSX)
+#include <sys/random.h>
+#endif
#ifdef HAVE_SYSCTL_ARND
#include <sys/sysctl.h>
#endif
@@ -237,6 +240,15 @@ void GetOSRand(unsigned char *ent32)
if (getentropy(ent32, NUM_OS_RANDOM_BYTES) != 0) {
RandFailure();
}
+#elif defined(HAVE_GETENTROPY_RAND) && defined(MAC_OSX)
+ // We need a fallback for OSX < 10.12
+ if (&getentropy != NULL) {
+ if (getentropy(ent32, NUM_OS_RANDOM_BYTES) != 0) {
+ RandFailure();
+ }
+ } else {
+ GetDevURandom(ent32);
+ }
#elif defined(HAVE_SYSCTL_ARND)
/* FreeBSD and similar. It is possible for the call to return less
* bytes than requested, so need to read in a loop.