Date: Sun, 19 Aug 2018 14:25:28 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r338049 - head/lib/libc/string Message-ID: <201808191425.w7JEPSBQ053914@repo.freebsd.org>
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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 <yuripv@yuripv.net> 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.
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