From 5bf880665586a580d7adaec25780f85489f99a43 Mon Sep 17 00:00:00 2001
From: Chris Conlon <chris@wolfssl.com>
Date: Thu, 1 Sep 2016 15:05:27 -0600
Subject: [PATCH] add wc_Sha384/512GetHash() functions

---
 wolfcrypt/src/hash.c     | 30 ++++++++++++++++++++++++++++++
 wolfssl/wolfcrypt/hash.h |  2 ++
 2 files changed, 32 insertions(+)

diff --git a/wolfcrypt/src/hash.c b/wolfcrypt/src/hash.c
index 28d04e76b..7cda03024 100644
--- a/wolfcrypt/src/hash.c
+++ b/wolfcrypt/src/hash.c
@@ -324,6 +324,21 @@ int wc_Sha256Hash(const byte* data, word32 len, byte* hash)
 #endif /* !defined(WOLFSSL_TI_HASH) */
 
 #if defined(WOLFSSL_SHA512)
+int wc_Sha512GetHash(Sha512* sha512, byte* hash)
+{
+    int ret;
+    Sha512 save;
+
+    if (sha512 == NULL || hash == NULL)
+        return BAD_FUNC_ARG;
+
+    save= *sha512;
+    ret = wc_Sha512Final(sha512, hash);
+    *sha512 = save;
+
+    return ret;
+}
+
 int wc_Sha512Hash(const byte* data, word32 len, byte* hash)
 {
     int ret = 0;
@@ -357,6 +372,21 @@ int wc_Sha512Hash(const byte* data, word32 len, byte* hash)
 }
 
 #if defined(WOLFSSL_SHA384)
+int wc_Sha384GetHash(Sha384* sha384, byte* hash)
+{
+    int ret;
+    Sha384 save;
+
+    if (sha384 == NULL || hash == NULL)
+        return BAD_FUNC_ARG;
+
+    save= *sha384;
+    ret = wc_Sha384Final(sha384, hash);
+    *sha384 = save;
+
+    return ret;
+}
+
 int wc_Sha384Hash(const byte* data, word32 len, byte* hash)
 {
     int ret = 0;
diff --git a/wolfssl/wolfcrypt/hash.h b/wolfssl/wolfcrypt/hash.h
index a2d2eca92..1296c56f5 100644
--- a/wolfssl/wolfcrypt/hash.h
+++ b/wolfssl/wolfcrypt/hash.h
@@ -105,10 +105,12 @@ WOLFSSL_API int wc_Sha256Hash(const byte*, word32, byte*);
 
 #ifdef WOLFSSL_SHA512
 #include <wolfssl/wolfcrypt/sha512.h>
+WOLFSSL_API int wc_Sha512GetHash(Sha512*, byte*);
 WOLFSSL_API int wc_Sha512Hash(const byte*, word32, byte*);
 #define wc_Sha512Free(d)
 
     #if defined(WOLFSSL_SHA384)
+        WOLFSSL_API int wc_Sha384GetHash(Sha384*, byte*);
         WOLFSSL_API int wc_Sha384Hash(const byte*, word32, byte*);
         #define wc_Sha384Free(d)
     #endif /* defined(WOLFSSL_SHA384) */