mknod(name, mode, addr)  char *name; 
 DESCRIPTION
 Mknod creates a new file
whose name is the null-terminated string pointed
to by
 name . The mode of the new file
(including directory and special file bits)
is initialized from
 mode . (The protection part of the mode
is modified by the process's mode mask; see
 umask (2)). The first block pointer of the i-node
is initialized from
 addr . For ordinary files and directories
 addr is normally zero.
In the case of a special file,
 addr specifies which special file.

 Mknod may be invoked only by the super-user.
 "SEE ALSO"
mkdir(1), mknod(1), filsys(5)
 DIAGNOSTICS
Zero is returned if the file has been made; -1
if the file already exists
or if the user is not the super-user.
 "ASSEMBLER (PDP-11)"
(mknod = 14.)

 sys mknod; name; mode; addr