From: tb <tb@openbsd.org>
Date: Tue, 11 Apr 2023 13:03:03 +0000 (+0000)
Subject: Back out r1.27 using htobe64() - apparently some OS don't have it.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=866757b1d27591d7416761d06a999feee864d8ec;p=openbsd

Back out r1.27 using htobe64() - apparently some OS don't have it.

ok jsing
---

diff --git a/lib/libcrypto/sha/sha512.c b/lib/libcrypto/sha/sha512.c
index 8c78f826c8e..d923a8e2afb 100644
--- a/lib/libcrypto/sha/sha512.c
+++ b/lib/libcrypto/sha/sha512.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sha512.c,v 1.28 2023/04/11 10:35:21 jsing Exp $ */
+/* $OpenBSD: sha512.c,v 1.29 2023/04/11 13:03:03 tb Exp $ */
 /* ====================================================================
  * Copyright (c) 1998-2011 The OpenSSL Project.  All rights reserved.
  *
@@ -546,9 +546,28 @@ SHA512_Final(unsigned char *md, SHA512_CTX *c)
 		sha512_block_data_order(c, p, 1);
 	}
 
-	memset(p + n, 0, sizeof(c->u) - 16 - n);
-	c->u.d[SHA_LBLOCK - 2] = htobe64(c->Nh);
-	c->u.d[SHA_LBLOCK - 1] = htobe64(c->Nl);
+	memset (p + n, 0, sizeof(c->u) - 16 - n);
+#if BYTE_ORDER == BIG_ENDIAN
+	c->u.d[SHA_LBLOCK - 2] = c->Nh;
+	c->u.d[SHA_LBLOCK - 1] = c->Nl;
+#else
+	p[sizeof(c->u) - 1] = (unsigned char)(c->Nl);
+	p[sizeof(c->u) - 2] = (unsigned char)(c->Nl >> 8);
+	p[sizeof(c->u) - 3] = (unsigned char)(c->Nl >> 16);
+	p[sizeof(c->u) - 4] = (unsigned char)(c->Nl >> 24);
+	p[sizeof(c->u) - 5] = (unsigned char)(c->Nl >> 32);
+	p[sizeof(c->u) - 6] = (unsigned char)(c->Nl >> 40);
+	p[sizeof(c->u) - 7] = (unsigned char)(c->Nl >> 48);
+	p[sizeof(c->u) - 8] = (unsigned char)(c->Nl >> 56);
+	p[sizeof(c->u) - 9] = (unsigned char)(c->Nh);
+	p[sizeof(c->u) - 10] = (unsigned char)(c->Nh >> 8);
+	p[sizeof(c->u) - 11] = (unsigned char)(c->Nh >> 16);
+	p[sizeof(c->u) - 12] = (unsigned char)(c->Nh >> 24);
+	p[sizeof(c->u) - 13] = (unsigned char)(c->Nh >> 32);
+	p[sizeof(c->u) - 14] = (unsigned char)(c->Nh >> 40);
+	p[sizeof(c->u) - 15] = (unsigned char)(c->Nh >> 48);
+	p[sizeof(c->u) - 16] = (unsigned char)(c->Nh >> 56);
+#endif
 
 	sha512_block_data_order(c, p, 1);