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-rw-r--r--src/random.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/random.cpp b/src/random.cpp
index 3226abb69e..b308e8f4a1 100644
--- a/src/random.cpp
+++ b/src/random.cpp
@@ -227,10 +227,12 @@ void GetOSRand(unsigned char *ent32)
RandFailure();
}
}
-#elif defined(HAVE_GETENTROPY)
+#elif defined(HAVE_GETENTROPY) && defined(__OpenBSD__)
/* On OpenBSD this can return up to 256 bytes of entropy, will return an
* error if more are requested.
* The call cannot return less than the requested number of bytes.
+ getentropy is explicitly limited to openbsd here, as a similar (but not
+ the same) function may exist on other platforms via glibc.
*/
if (getentropy(ent32, NUM_OS_RANDOM_BYTES) != 0) {
RandFailure();