From owner-svn-src-head@freebsd.org Sun Aug 19 14:25:29 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6E1B2106A016; Sun, 19 Aug 2018 14:25:29 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 23A66785DC; Sun, 19 Aug 2018 14:25:29 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 0018A27754; Sun, 19 Aug 2018 14:25:28 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w7JEPSF7053915; Sun, 19 Aug 2018 14:25:28 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w7JEPSBQ053914; Sun, 19 Aug 2018 14:25:28 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201808191425.w7JEPSBQ053914@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Sun, 19 Aug 2018 14:25:28 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r338049 - head/lib/libc/string X-SVN-Group: head X-SVN-Commit-Author: kib X-SVN-Commit-Paths: head/lib/libc/string X-SVN-Commit-Revision: 338049 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 19 Aug 2018 14:25:29 -0000 Author: kib Date: Sun Aug 19 14:25:28 2018 New Revision: 338049 URL: https://svnweb.freebsd.org/changeset/base/338049 Log: Clarify that memset_s(3) requires __STDC_WANT_LIB_EXT1__ for visibility. Fix typos and other nits. Submitted by: Yuri Pankov MFC after: 3 days Differential revision: https://reviews.freebsd.org/D16797 Modified: head/lib/libc/string/memset.3 Modified: head/lib/libc/string/memset.3 ============================================================================== --- head/lib/libc/string/memset.3 Sun Aug 19 14:22:45 2018 (r338048) +++ head/lib/libc/string/memset.3 Sun Aug 19 14:25:28 2018 (r338049) @@ -32,7 +32,7 @@ .\" @(#)memset.3 8.1 (Berkeley) 6/4/93 .\" $FreeBSD$ .\" -.Dd February 15, 2018 +.Dd August 19, 2018 .Dt MEMSET 3 .Os .Sh NAME @@ -44,6 +44,7 @@ .In string.h .Ft void * .Fn memset "void *dest" "int c" "size_t len" +.Fd #define __STDC_WANT_LIB_EXT1__ 1 .Ft errno_t .Fn memset_s "void *dest" "rsize_t destsz" "int c" "rsize_t len" .Sh DESCRIPTION @@ -82,7 +83,6 @@ or is greater than .Dv RSIZE_MAX , or -.Sp .Fa len is greater than .Fa destsz @@ -93,10 +93,10 @@ Like .Xr explicit_bzero 3 , .Fn memset_s is not removed through Dead Store Elimination (DSE), making it useful for -clearing sensitve data. +clearing sensitive data. In contrast .Fn memset -function +function may be optimized away if the object modified by the function is not accessed again. To clear memory that will not subsequently be accessed it is advised to use @@ -126,6 +126,6 @@ function conforms to .St -isoC . .Fn memset_s -conforms to: +conforms to .St -isoC-2011 K.3.7.4.1.