Date: Thu, 21 Jun 2018 15:21:17 +0000 (UTC) From: Ian Lepore <ian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r335489 - head/lib/libc/sys Message-ID: <201806211521.w5LFLHNH069327@repo.freebsd.org>
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Author: ian Date: Thu Jun 21 15:21:17 2018 New Revision: 335489 URL: https://svnweb.freebsd.org/changeset/base/335489 Log: Add some words clarifying that rename(2) does nothing when the 'from' and 'to' args are the same file. Wording borrowed from POSIX.1-2017, but the freebsd code to implement this behavior was added in 2002 (r103180). Modified: head/lib/libc/sys/rename.2 Modified: head/lib/libc/sys/rename.2 ============================================================================== --- head/lib/libc/sys/rename.2 Thu Jun 21 15:11:14 2018 (r335488) +++ head/lib/libc/sys/rename.2 Thu Jun 21 15:21:17 2018 (r335489) @@ -28,7 +28,7 @@ .\" @(#)rename.2 8.1 (Berkeley) 6/4/93 .\" $FreeBSD$ .\" -.Dd September 15, 2017 +.Dd June 21, 2018 .Dt RENAME 2 .Os .Sh NAME @@ -75,6 +75,15 @@ If the final component of is a symbolic link, the symbolic link is renamed, not the file or directory to which it points. +.Pp +If +.Fa from +and +.Fa to +resolve to the same directory entry, or to different directory +entries for the same existing file, +.Fn rename +returns success without taking any further action. .Pp The .Fn renameat
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