+
+int X509_ALGOR_copy(X509_ALGOR *dest, const X509_ALGOR *src)
+{
+ if (src == NULL || dest == NULL)
+ return 0;
+
+ if (dest->algorithm)
+ ASN1_OBJECT_free(dest->algorithm);
+ dest->algorithm = NULL;
+
+ if (dest->parameter)
+ ASN1_TYPE_free(dest->parameter);
+ dest->parameter = NULL;
+
+ if (src->algorithm)
+ if ((dest->algorithm = OBJ_dup(src->algorithm)) == NULL)
+ return 0;
+
+ if (src->parameter)
+ /* Assuming this is also correct for a BOOL.
+ * set does copy as a side effect.
+ */
+ if (ASN1_TYPE_set1(dest->parameter,
+ src->parameter->type, src->parameter->value.ptr) == 0)
+ return 0;
+
+ return 1;
+}