From: Giuseppe Scrivano <gscrivan@redhat.com>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netfilter-devel@vger.kernel.org, Phil Sutter <phil@nwl.cc>,
Florian Westphal <fw@strlen.de>
Subject: Re: [iptables PATCH v3] iptables: accept lock file name at runtime
Date: Fri, 17 Jul 2020 12:12:10 +0200 [thread overview]
Message-ID: <87wo32v4at.fsf@redhat.com> (raw)
In-Reply-To: <20200717092744.GA17027@salvia> (Pablo Neira Ayuso's message of "Fri, 17 Jul 2020 11:27:44 +0200")
Hi Pablo,
Pablo Neira Ayuso <pablo@netfilter.org> writes:
> Probably remove the check for lock_file[0] == '\0'
>
> Or is this intentional?
I've added it intentionally as I think it is safer to ignore an empty
string. The programs I've checked, GNU coreutils and GNU grep, have the
same check.
The empty string will likely fail on open(2), at least on tmpfs
it does with ENOENT. If you want though, I can drop the check.
> git grep getenv in iptables does not show any similar handling for
> getenv().
not sure if that is the desired behaviour as it will be processed as
an empty string.
Regards,
Giuseppe
next prev parent reply other threads:[~2020-07-17 10:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-17 8:39 [iptables PATCH v3] iptables: accept lock file name at runtime Giuseppe Scrivano
2020-07-17 9:27 ` Pablo Neira Ayuso
2020-07-17 10:12 ` Giuseppe Scrivano [this message]
2020-07-17 10:22 ` Pablo Neira Ayuso
2020-07-24 11:21 ` Pablo Neira Ayuso
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