1 files changed, 28 insertions, 0 deletions
diff --git a/ckcapi.c b/ckcapi.c
index 0bed282..f0c4629 100644
--- a/ckcapi.c
+++ b/ckcapi.c
@@ -112,6 +112,34 @@ ckcapi_winerr_to_ckr(DWORD werr)
 }
 
 
+CK_RV
+ckcapi_return_data(CK_VOID_PTR dst, CK_ULONG_PTR dlen, 
+			       CK_VOID_PTR src, DWORD slen)
+{
+	// TODO: This check should probably go elsewhere
+	if(slen == 0)
+		return CKR_ATTRIBUTE_TYPE_INVALID;
+
+	/* Just asking for the length */
+	if(!dst)
+	{
+		*dlen = slen;
+		return CKR_OK;
+	}
+
+	/* Buffer is too short */
+	if(slen > *dlen)
+	{
+		*dlen = slen;
+		return CKR_BUFFER_TOO_SMALL;
+	}
+
+	*dlen = slen;
+	memcpy(dst, src, slen);
+	return CKR_OK;
+}
+
+
 /* ---------------------------------------------------------------- */
 
 static CK_RV