bfs_file_lookup
if (!bfs_file_lookup(file->bfs, name, &file->start, &file->end,
if (!bfs_file_lookup(bfs, fname, &start, &end, &sz))
if (bfs_file_lookup(bfs, file->name, &s, &e, &bytes))
bool bfs_file_lookup(const struct bfs *, const char *, int *, int *,