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Date:   Wed, 18 Oct 2023 00:05:39 +0200
From:   Florian Westphal <fw@strlen.de>
To:     "U.Mutlu" <um@mutluit.com>
Cc:     Florian Westphal <fw@strlen.de>, netfilter@vger.kernel.org
Subject: Re: [nftables/nft] nft equivalent of "ipset test"
Message-ID: <20231017220539.GE5770@breakpoint.cc>
References: <652EC034.7090501@mutluit.com>
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 <652F02EC.2050807@mutluit.com>
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U.Mutlu <um@mutluit.com> wrote:
> Florian Westphal wrote on 10/17/23 23:35:
> > U.Mutlu <um@mutluit.com> wrote:
> > > The "ipset" commandline tool has the "test" command
> > > for testing whether a given item (ie. an IP) is in a given set.
> > > Is there an equivalent for the "nft" commandline tool of nftables?
> > > I unfortunately couldn't find the answer in the manpage of nft.
> > 
> > nft "get element inet tablename setname { 1.2.3.4 }"
> 
> But isn't that printing the whole item on stdout?
> I just need to quickly test it only,
> ie. need just a return code of 0 or 1, or so,
> for use in a shell script (bash).

?

nft "get element inet t s { 1.2.3.4 }" > /dev/null 2>&1; echo $?
1
nft "add element inet t s { 1.2.3.4 }"
nft "get element inet t s { 1.2.3.4 }" > /dev/null 2>&1; echo $?
0