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authorkettenis <kettenis@openbsd.org>2014-07-16 14:26:47 +0000
committerkettenis <kettenis@openbsd.org>2014-07-16 14:26:47 +0000
commit912a9ab18d01975be4672a32e257dd6d67a025dd (patch)
tree81bcd60cef85ffa11fdebe9a5983077c8b404482 /lib/libcrypto/crypto/getentropy_linux.c
parentno more html/milter; (diff)
downloadwireguard-openbsd-912a9ab18d01975be4672a32e257dd6d67a025dd.tar.xz
wireguard-openbsd-912a9ab18d01975be4672a32e257dd6d67a025dd.zip
Only call getauxval(3) if HAVE_GETAUXVAL is defined. Fixes build on older
Linux (such as Ubuntu 12.04LTS) that don't have it yet. Seems the AT_XXX defines are pulled in by <link.h> now. ok beck@
Diffstat (limited to 'lib/libcrypto/crypto/getentropy_linux.c')
-rw-r--r--lib/libcrypto/crypto/getentropy_linux.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/libcrypto/crypto/getentropy_linux.c b/lib/libcrypto/crypto/getentropy_linux.c
index 40ea8a14adb..d5d36da1c5f 100644
--- a/lib/libcrypto/crypto/getentropy_linux.c
+++ b/lib/libcrypto/crypto/getentropy_linux.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: getentropy_linux.c,v 1.24 2014/07/13 13:37:38 deraadt Exp $ */
+/* $OpenBSD: getentropy_linux.c,v 1.25 2014/07/16 14:26:47 kettenis Exp $ */
/*
* Copyright (c) 2014 Theo de Raadt <deraadt@openbsd.org>
@@ -486,6 +486,7 @@ getentropy_fallback(void *buf, size_t len)
HD(cnt);
}
+#ifdef HAVE_GETAUXVAL
#ifdef AT_RANDOM
/* Not as random as you think but we take what we are given */
p = (char *) getauxval(AT_RANDOM);
@@ -502,6 +503,7 @@ getentropy_fallback(void *buf, size_t len)
if (p)
HD(p);
#endif
+#endif
SHA512_Final(results, &ctx);
memcpy((char *)buf + i, results, min(sizeof(results), len - i));