1 files changed, 8 insertions, 3 deletions

diff --git a/src/lib/libcrypto/evp/bio_md.c b/src/lib/libcrypto/evp/bio_md.c
index f4aa41ac4b..d648ac6da6 100644
--- a/src/lib/libcrypto/evp/bio_md.c
+++ b/src/lib/libcrypto/evp/bio_md.c
@@ -153,7 +153,7 @@ static int md_write(BIO *b, const char *in, int inl)
                 {
                 if (ret > 0)
                         {
-                        EVP_DigestUpdate(ctx,(unsigned char *)in,
+                        EVP_DigestUpdate(ctx,(const unsigned char *)in,
                                 (unsigned int)ret);
                         }
                 }
@@ -192,8 +192,13 @@ static long md_ctrl(BIO *b, int cmd, long num, void *ptr)
                         ret=0;
                 break;
         case BIO_C_GET_MD_CTX:
-                pctx=ptr;
-                *pctx=ctx;
+                if (b->init)
+                        {
+                        pctx=ptr;
+                        *pctx=ctx;
+                        }
+                else
+                        ret=0;
                 break;
         case BIO_C_SET_MD_CTX:
                 if (b->init)