dm_versions
struct dm_versions *
struct dm_versions *vers;
if ((dmt->data_buffer = malloc(sizeof(struct dm_versions) * count))
vers = (struct dm_versions *)dmt->data_buffer;
memset(vers, 0, sizeof(struct dm_versions) * count);
vers[i].next = sizeof(struct dm_versions);
return (struct dm_versions *)dmt->data_buffer;
struct dm_versions *dm_task_get_versions(struct dm_task *dmt);