[rtems commit] sha512_224: Fix SHA512_224_Final() on little-endian machines.

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    a67b944329b7a2589d698c69becf2be54d3879d7
Changeset: http://git.rtems.org/rtems/commit/?id=a67b944329b7a2589d698c69becf2be54d3879d7

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Mon Feb  6 17:57:28 2023 +0100

sha512_224: Fix SHA512_224_Final() on little-endian machines.

PR:		266863
MFC after:	1 week
Reviewed by:	allanjude, cperciva, des
Differential Revision:	https://reviews.freebsd.org/D38372

---

 cpukit/libmd/sha512c.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/cpukit/libmd/sha512c.c b/cpukit/libmd/sha512c.c
index 0b03d09fa9..56217586cd 100644
--- a/cpukit/libmd/sha512c.c
+++ b/cpukit/libmd/sha512c.c
@@ -50,23 +50,26 @@ __FBSDID("$FreeBSD$");
 #else /* BYTE_ORDER != BIG_ENDIAN */
 
 /*
- * Encode a length len/4 vector of (uint64_t) into a length len vector of
- * (unsigned char) in big-endian form.  Assumes len is a multiple of 8.
+ * Encode a length (len + 7) / 8 vector of (uint64_t) into a length len
+ * vector of (unsigned char) in big-endian form.  Assumes len is a
+ * multiple of 4.
  */
-static void
+static inline void
 be64enc_vect(unsigned char *dst, const uint64_t *src, size_t len)
 {
 	size_t i;
 
 	for (i = 0; i < len / 8; i++)
 		be64enc(dst + i * 8, src[i]);
+	if (len % 8 == 4)
+		be32enc(dst + i * 8, src[i] >> 32);
 }
 
 /*
  * Decode a big-endian length len vector of (unsigned char) into a length
- * len/4 vector of (uint64_t).  Assumes len is a multiple of 8.
+ * len/8 vector of (uint64_t).  Assumes len is a multiple of 8.
  */
-static void
+static inline void
 be64dec_vect(uint64_t *dst, const unsigned char *src, size_t len)
 {
 	size_t i;