Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hfLq5-0000lK-Ci for pgsql-hackers@arkaria.postgresql.org; Mon, 24 Jun 2019 10:04:41 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1hfLq4-0006gl-4M for pgsql-hackers@arkaria.postgresql.org; Mon, 24 Jun 2019 10:04:40 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hfLq3-0006Yj-MA for pgsql-hackers@lists.postgresql.org; Mon, 24 Jun 2019 10:04:39 +0000 Received: from ping.uio.no ([2001:700:100:570::196]) by makus.postgresql.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hfLpz-0007FN-C2 for pgsql-hackers@postgresql.org; Mon, 24 Jun 2019 10:04:38 +0000 Received: from [2001:700:100:570::211] (helo=dalvik.ping.uio.no ident=Debian-exim) by ping.uio.no with esmtp (Exim 4.72 #1 (Debian)) id 1hfLom-0004qv-Oy; Mon, 24 Jun 2019 12:04:23 +0200 Received: from ilmari by dalvik.ping.uio.no with local (Exim 4.84_2) (envelope-from ) id 1hfLom-0004KQ-Ho; Mon, 24 Jun 2019 12:03:20 +0200 From: ilmari@ilmari.org (Dagfinn Ilmari =?utf-8?Q?Manns=C3=A5ker?=) To: Michael Paquier Cc: Peter Eisentraut , Tom Lane , pgsql-hackers Subject: Re: using explicit_bzero References: <42d26bde-5d5b-c90d-87ae-6cab875f73be@2ndquadrant.com> <27860.1561123531@sss.pgh.pa.us> <0c1e5b8b-873d-262a-efaa-2d783702f7b8@2ndquadrant.com> <20190624051028.GF1637@paquier.xyz> Mail-Copies-To: nobody Date: Mon, 24 Jun 2019 11:03:20 +0100 In-Reply-To: <20190624051028.GF1637@paquier.xyz> (Michael Paquier's message of "Mon, 24 Jun 2019 14:10:28 +0900") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Exiscan-Spam-Score: -3.7 (---) X-Exiscan-Spam-Report: SpamAssassin 3.3.1 (2010-03-16) on pike.ping.uio.no Score Rule * -5.0 PING_UIO_MAIL_IS_INTERNAL Message has never been outside * 129.240.0.0/16 or 193.157.115.0/24 * 1.3 RDNS_NONE Delivered to internal network by a host with no rDNS List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk Michael Paquier writes: > On Sun, Jun 23, 2019 at 09:56:40PM +0200, Peter Eisentraut wrote: >> On 2019-06-21 15:45, Dagfinn Ilmari Mannsåker wrote: >>> Also, on Linux it requires libbsd: https://libbsd.freedesktop.org/ >> >> No, it's in glibc. > > From man: > explicit_bzero() first appeared in glibc 2.25. Ah, I was looking on my Debian Stretch (stable) box, which only has glibc 2.24. Buster (testing, due out next week) has 2.28 which indeed has it. - ilmari -- - Twitter seems more influential [than blogs] in the 'gets reported in the mainstream press' sense at least. - Matt McLeod - That'd be because the content of a tweet is easier to condense down to a mainstream media article. - Calle Dybedahl