From owner-freebsd-bugs  Thu Nov  6 21:10:07 1997
Return-Path: <owner-freebsd-bugs>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id VAA10426
          for bugs-outgoing; Thu, 6 Nov 1997 21:10:07 -0800 (PST)
          (envelope-from owner-freebsd-bugs)
Received: (from gnats@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id VAA10415;
          Thu, 6 Nov 1997 21:10:02 -0800 (PST)
          (envelope-from gnats)
Date: Thu, 6 Nov 1997 21:10:02 -0800 (PST)
Message-Id: <199711070510.VAA10415@hub.freebsd.org>
To: freebsd-bugs
Cc: 
From: Bill Fenner <fenner@parc.xerox.com>
Subject: Re: bin/4961: Problems with fseek and fprints 
Reply-To: Bill Fenner <fenner@parc.xerox.com>
Sender: owner-freebsd-bugs@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

The following reply was made to PR bin/4961; it has been noted by GNATS.

From: Bill Fenner <fenner@parc.xerox.com>
To: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
Cc: freebsd-gnats-submit@freebsd.org
Subject: Re: bin/4961: Problems with fseek and fprints 
Date: Thu, 6 Nov 1997 21:05:50 PST

 Garrett Wollman <wollman@khavrinen.lcs.mit.edu> wrote:
 >				readlink("/etc/malloc.conf", ...)
 
 Aha.  Plaugher's "Standard C Library" says that the "right" way
 to use errno is:
 
 	errno = 0;
 	foo();
 	if (errno) ...
 
 so library functions shouldn't set errno if an error did not occur.
 Does that mean that malloc should save errno around the readlink()?
 
   Bill