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From: "Rodney W. Grimes" <freebsd@pdx.rh.CN85.dnsmgr.net>
Message-Id: <201705180945.v4I9jkTP065429@pdx.rh.CN85.dnsmgr.net>
Subject: Re: svn commit: r318400 - head/sbin/ipfw
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To: "Andrey V. Elsukov" <bu7cher@yandex.ru>
Date: Thu, 18 May 2017 02:45:46 -0700 (PDT)
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-- Start of PGP signed section.
[ Charset UTF-8 unsupported, converting... ]
> On 18.05.2017 03:49, Rodney W. Grimes wrote:
> > [ Charset UTF-8 unsupported, converting... ]
> >> Author: ae
> >> Date: Wed May 17 10:56:22 2017
> >> New Revision: 318400
> >> URL: https://svnweb.freebsd.org/changeset/base/318400
> >>
> >> Log:
> >>   Allow zero port specification in table entries with type flow.
> >>   
> >>   PR:		217620
> >>   MFC after:	1 week
> >>
> >> Modified:
> >>   head/sbin/ipfw/tables.c
> >>
> >> Modified: head/sbin/ipfw/tables.c
> >> ==============================================================================
> >> --- head/sbin/ipfw/tables.c	Wed May 17 09:04:09 2017	(r318399)
> >> +++ head/sbin/ipfw/tables.c	Wed May 17 10:56:22 2017	(r318400)
> >> @@ -1260,16 +1260,14 @@ tentry_fill_key_type(char *arg, ipfw_obj
> >>  			if ((p = strchr(arg, ',')) != NULL)
> >>  				*p++ = '\0';
> >>  
> >> -			if ((port = htons(strtol(arg, NULL, 10))) == 0) {
> >> +			port = htons(strtol(arg, &pp, 10));
> >                                                       ^^^
> > Can this be converted to a sizeof(foo) somehow?
> > Constants like this are typically bad style and lead to bugs.
> 
> This means that decimal number is expected in the string.
> Not sure what bugs this can lead to.

Ignore me, my brain was reading strtok as strncpy and expecting
the third argument to be length limit.

-- 
Rod Grimes                                                 rgrimes@freebsd.org