Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cmcl2!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.unix.wizards
Subject: Re: setpgrp on System V
Keywords: setpgrp
Message-ID: <10301@smoke.BRL.MIL>
Date: 21 May 89 03:11:41 GMT
References: <1127@altos86.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 11

In article <1127@altos86.UUCP> clp@altos86.UUCP (Chuck L. Peterson) writes:
>The library calls setpgrp and getpgrp both use the setpgrp() system call.
>Setgrp() gets translated to setgrp(1), and getpgrp gets translated to 
>setpgrp(0).  The manuals are consistent with the library call and
>say that setpgrp takes no argument.  Are there any other cases where
>the C library changes arguments to system calls?  This seems odd.

Perhaps the kernel implementors were trying to keep the GATE switch
array as small as possible.  So long as the C library interfaces to
the system calls function properly, what do you care how they're
implemented?