v7 man page for chown

CHOWN(2)							System Calls Manual							  CHOWN(2)

NAME
       chown - change owner and group of a file

SYNOPSIS
       chown(name, owner, group)
       char *name;

DESCRIPTION
       The  file  whose  name  is  given  by the null-terminated string pointed to by name has its owner and group changed as specified.  Only the
       super-user may execute this call, because if users were able to give files away, they could defeat the (nonexistent) file-space	accounting
       procedures.

SEE ALSO
       chown(1), passwd(5)

DIAGNOSTICS
       Zero is returned if the owner is changed; -1 is returned on illegal owner changes.

ASSEMBLER
       (chown = 16.)
       sys chown; name; owner; group

																	  CHOWN(2)