PROCEDURE getgid() : INTEGER;
PROCEDURE getegid() : INTEGER;
PROCEDURE ioctl(fildes, request: INTEGER; arg: ADDRESS) : INTEGER;
+ PROCEDURE stty(fildes: INTEGER; buf: ADDRESS) : INTEGER;
+ PROCEDURE gtty(fildes: INTEGER; buf: ADDRESS) : INTEGER;
PROCEDURE kill(pid, sig: INTEGER) : INTEGER;
PROCEDURE link(path1, path2: ADDRESS) : INTEGER;
PROCEDURE lseek(fildes: INTEGER; offset: LONGINT; whence: INTEGER) : LONGINT;