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To: Warner Losh <imp@freefall.freebsd.org>
Cc: CVS-committers@freefall.freebsd.org, cvs-all@freefall.freebsd.org,
        cvs-bin@freefall.freebsd.org
Subject: Re: cvs commit: src/bin/cat cat.c 
Reply-To: Jason Thorpe <thorpej@nas.nasa.gov>
From: Jason Thorpe <thorpej@nas.nasa.gov>
Date: Sat, 28 Sep 1996 14:34:11 -0700
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On Sat, 28 Sep 1996 14:19:35 -0700 (PDT) 
 Warner Losh <imp@freefall.freebsd.org> wrote:

 >   Merge in the NetBSD changes to cat.c.  These appear to have come from
 >   the 4.4 lite 2 tape as well.  There are now only two diffs between
 >   NetBSD's cat and FreeBSD's cat:
 >   	getopt return value is -1 on NetBSD and EOF on FreeBSD.

>From NetBSD's getopt(3):

     The getopt() function returns -1 when the argument list is exhausted, or
     a non-recognized option is encountered.  The interpretation of options in
     the argument list may be cancelled by the option `--' (double dash) which
     causes getopt() to signal the end of argument processing and returns -1.
     When all options have been processed (i.e., up to the first non-option
     argument), getopt() returns -1.

[ . . . ]

     The getopt() function was once specified to return EOF instead of -1.
     This was changed by IEEE Std1003.2-1992 (``POSIX.2'') to decouple
     getopt() from <stdio.h>.

FreeBSD should probably fix their getopt(3).

Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                               Home: 408.866.1912
NAS: M/S 258-6                                          Work: 415.604.0935
Moffett Field, CA 94035                                Pager: 415.428.6939