Date: Thu, 24 Jun 1999 16:57:47 +0930 From: Greg Lehey <grog@lemis.com> To: Warner Losh <imp@harmony.village.org> Cc: hm@hcs.de, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/usr.sbin/i4b/isdnd main.c src/usr.sbin/i4b/isdndebug main.c src/usr.sbin/i4b/isdndecode main.c src/usr.s Message-ID: <19990624165747.A427@freebie.lemis.com> In-Reply-To: <199906240719.BAA36122@harmony.village.org>; from Warner Losh on Thu, Jun 24, 1999 at 01:19:57AM -0600 References: <m10x3JA-0000fPC@hcswork.hcs.de> <199906240719.BAA36122@harmony.village.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thursday, 24 June 1999 at 1:19:57 -0600, Warner Losh wrote: > In message <m10x3JA-0000fPC@hcswork.hcs.de> Hellmuth Michaelis writes: > : Including '?' in the getopt options string is intentional, because - last > : time i checked - using "programname -?" produces an output, where getopt > : says that "-?" is an invalid option. This is IMHO false in that "-?" is > : a valid option to display the usage string(s). > > I'm not sure I agree with that completely. '?' is never used in BSD > 4.4-lite sources (as far as I recall), but the 4.4-lite files also > compared against EOF rather than -1. '?' is a special character to > getopt. Users of getopt have no way of knowing if the user typed '?' > or some other character, since getopt maps unknown characters to '?'. > Since '?' is a special character, I don't have a problem adding it to > the list of characters that are treated specially. Right now ':' is > treated specially in getopt's error reporting. This is a deviation > form the documentation, so there is precidence for treating ? > specially. It seems to me that -? is a dangerous flag. Consider: echo rm -? touch ./-f echo rm -? Greg -- See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19990624165747.A427>