+
+int openat(at_dirfd_t, string, hex(uint), oct(uint));
+int mknodat(at_dirfd_t, string, oct(uint), ushort)
+int mkdirat(at_dirfd_t, string, oct(uint));
+int unlinkat(at_dirfd_t, string, hex(uint));
+int symlinkat(string, at_dirfd_t, string);
+int linkat(at_dirfd_t, string, at_dirfd_t, string, hex(uint));
+int renameat(at_dirfd_t, string, at_dirfd_t, string);
+int faccessat(at_dirfd_t, string, oct(uint), hex(uint));
+int fchmodat(at_dirfd_t, string, oct(uint), hex(uint));
+int fchownat(at_dirfd_t, string, int, int, hex(uint));
+int readlinkat(at_dirfd_t, string, +string[arg4], ulong);
+int fstatat(at_dirfd_t, string, addr, hex(uint));
+int utimensat(at_dirfd_t, string, addr, hex(uint));
+int futimens(int, addr);
+int futimesat(at_dirfd_t, string, addr);
+addr shmat(int, addr, hex(uint));
+int shmdt(addr);
+
+typedef fid_type = enum(FILEID_ROOT=0, FILEID_INO32_GEN=1, FILEID_INO32_GEN_PARENT=2, FILEID_BTRFS_WITHOUT_PARENT=0x4d, FILEID_BTRFS_WITH_PARENT=0x4e, FILEID_BTRFS_WITH_PARENT_ROOT=0x4f, FILEID_UDF_WITHOUT_PARENT=0x51, FILEID_UDF_WITH_PARENT=0x52, FILEID_NILFS_WITHOUT_PARENT=0x61, FILEID_NILFS_WITH_PARENT=0x62);
+typedef file_handle = struct(uint, fid_type, array(hex(char), elt1)*);
+int name_to_handle_at(at_dirfd_t, string, file_handle, int*, hex(uint));
+int open_by_handle_at(at_dirfd_t, file_handle, hex(uint));
+
+int newfstatat(at_dirfd_t, string, addr, hex(uint));
+int creat(string, oct(int));
+int ustat(ushort, addr);