Date: Thu, 25 May 2017 18:55:10 +0000 (UTC) From: "Stephen J. Kiernan" <stevek@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r318893 - stable/11/lib/libc/sys Message-ID: <201705251855.v4PItAwY066510@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: stevek Date: Thu May 25 18:55:10 2017 New Revision: 318893 URL: https://svnweb.freebsd.org/changeset/base/318893 Log: MFC r318314 Add information to open(2) man page about the O_VERIFY flag. PR: 219262 Reviewed by: bjk wblock Approved by: sjg (mentor) Obtained from: Juniper Networks, Inc. Modified: stable/11/lib/libc/sys/open.2 Directory Properties: stable/11/ (props changed) Modified: stable/11/lib/libc/sys/open.2 ============================================================================== --- stable/11/lib/libc/sys/open.2 Thu May 25 18:46:13 2017 (r318892) +++ stable/11/lib/libc/sys/open.2 Thu May 25 18:55:10 2017 (r318893) @@ -119,6 +119,7 @@ O_NOCTTY ignored O_TTY_INIT ignored O_DIRECTORY error if file is not a directory O_CLOEXEC set FD_CLOEXEC upon open +O_VERIFY verify the contents of the file .Ed .Pp Opening a file with @@ -237,6 +238,15 @@ may be used to set .Dv FD_CLOEXEC flag for the newly returned file descriptor. .Pp +.Dv O_VERIFY +may be used to indicate to the kernel that the contents of the file should +be verified before allowing the open to proceed. +The details of what +.Dq verified +means is implementation specific. +The run-time linker (rtld) uses this flag to ensure shared objects have +been verified before operating on them. +.Pp If successful, .Fn open returns a non-negative integer, termed a file descriptor.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201705251855.v4PItAwY066510>