2 files changed, 3 insertions, 3 deletions
diff --git a/openssl/crypto/buffer/buffer.c b/openssl/crypto/buffer/buffer.c
index d7aa79ad7..d4a4ce43b 100644
--- a/openssl/crypto/buffer/buffer.c
+++ b/openssl/crypto/buffer/buffer.c
@@ -179,14 +179,14 @@ int BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
 	return(len);
 	}
 
-void BUF_reverse(unsigned char *out, unsigned char *in, size_t size)
+void BUF_reverse(unsigned char *out, const unsigned char *in, size_t size)
 	{
 	size_t i;
 	if (in)
 		{
 		out += size - 1;
 		for (i = 0; i < size; i++)
-			*in++ = *out--;
+			*out-- = *in++;
 		}
 	else
 		{
diff --git a/openssl/crypto/buffer/buffer.h b/openssl/crypto/buffer/buffer.h
index 178e41828..f8da32b48 100644
--- a/openssl/crypto/buffer/buffer.h
+++ b/openssl/crypto/buffer/buffer.h
@@ -88,7 +88,7 @@ int	BUF_MEM_grow_clean(BUF_MEM *str, size_t len);
 char *	BUF_strdup(const char *str);
 char *	BUF_strndup(const char *str, size_t siz);
 void *	BUF_memdup(const void *data, size_t siz);
-void	BUF_reverse(unsigned char *out, unsigned char *in, size_t siz);
+void	BUF_reverse(unsigned char *out, const unsigned char *in, size_t siz);
 
 /* safe string functions */
 size_t BUF_strlcpy(char *dst,const char *src,size_t siz);