From owner-cvs-lib  Wed Dec 18 06:07:07 1996
Return-Path: <owner-cvs-lib>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.4/8.8.4) id GAA07919
          for cvs-lib-outgoing; Wed, 18 Dec 1996 06:07:07 -0800 (PST)
Received: from godzilla.zeta.org.au (godzilla.zeta.org.au [203.2.228.19])
          by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id GAA07913;
          Wed, 18 Dec 1996 06:06:59 -0800 (PST)
Received: (from bde@localhost) by godzilla.zeta.org.au (8.8.3/8.6.9) id BAA03686; Thu, 19 Dec 1996 01:01:10 +1100
Date: Thu, 19 Dec 1996 01:01:10 +1100
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199612181401.BAA03686@godzilla.zeta.org.au>
To: ache@nagual.ru, jkh@time.cdrom.com
Subject: Re: cvs commit: src/lib/libc/sys semctl.2
Cc: cvs-all@freefall.freebsd.org, CVS-committers@freefall.freebsd.org,
        cvs-lib@freefall.freebsd.org, jkh@freefall.freebsd.org
Sender: owner-cvs-lib@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

>> >   Last argument to semctl() is union semun *, not union semun.
>> 
>> Really? When you check <sys/sem.h> last time? It says "union semun",
>> not "union semun *". It sounds like this change should be backed out.
>
>I checked the system call argument vector - why don't you look at the
>code which actually implements the system call? :-)

Why don't you? :-).  semctl(2) isn't a system call (it should be
semctl(3)).  There's an apperently-undocemented __semctl() system
call, but this isn't used by either semctl(2) or ibcs2.  They use the
apparently-undocumented semsys() system call.

Bruce