Import code from previous AssetBuilder version

thirdparty/libtomcrypt/modes/lrw/lrw_done.c

@@ -0,0 +1,40 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ */
+#include "tomcrypt.h"
+
+/**
+   @file lrw_done.c
+   LRW_MODE implementation, Free resources, Tom St Denis
+*/
+
+#ifdef LTC_LRW_MODE
+
+/**
+  Terminate a LRW state
+  @param lrw   The state to terminate
+  @return CRYPT_OK if successful
+*/
+int lrw_done(symmetric_LRW *lrw)
+{
+   int err;
+
+   LTC_ARGCHK(lrw != NULL);
+
+   if ((err = cipher_is_valid(lrw->cipher)) != CRYPT_OK) {
+      return err;
+   }
+   cipher_descriptor[lrw->cipher].done(&lrw->key);
+
+   return CRYPT_OK;
+}
+
+#endif
+/* ref:         HEAD -> master, tag: v1.18.2 */
+/* git commit:  7e7eb695d581782f04b24dc444cbfde86af59853 */
+/* commit time: 2018-07-01 22:49:01 +0200 */