Date: Fri, 29 Jul 2016 16:25:09 +0000 (UTC) From: Ed Schouten <ed@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r303486 - head/lib/libc/gen Message-ID: <201607291625.u6TGP9MS064446@repo.freebsd.org>
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Author: ed Date: Fri Jul 29 16:25:09 2016 New Revision: 303486 URL: https://svnweb.freebsd.org/changeset/base/303486 Log: Mention that basename(3) and dirname(3) will change in the future. Update the existing manual pages for basename(3) and dirname(3) to mention that in future versions of FreeBSD, these functions will no longer use internal buffers for storing the results. MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D7356 Modified: head/lib/libc/gen/basename.3 head/lib/libc/gen/dirname.3 Modified: head/lib/libc/gen/basename.3 ============================================================================== --- head/lib/libc/gen/basename.3 Fri Jul 29 16:23:00 2016 (r303485) +++ head/lib/libc/gen/basename.3 Fri Jul 29 16:25:09 2016 (r303486) @@ -16,7 +16,7 @@ .\" .\" $FreeBSD$ .\" -.Dd July 28, 2016 +.Dd July 29, 2016 .Dt BASENAME 3 .Os .Sh NAME @@ -61,8 +61,16 @@ function returns a pointer to internal storage space allocated on the first call that will be overwritten by subsequent calls. +.Pp +Other vendor implementations of +.Fn basename +may store their result in the input buffer, +making it safe to use in multithreaded applications. +Future versions of +.Fx +will follow this approach as well. .Fn basename_r -is therefore preferred for threaded applications. +will then become obsolete. .Sh RETURN VALUES On successful completion, .Fn basename Modified: head/lib/libc/gen/dirname.3 ============================================================================== --- head/lib/libc/gen/dirname.3 Fri Jul 29 16:23:00 2016 (r303485) +++ head/lib/libc/gen/dirname.3 Fri Jul 29 16:25:09 2016 (r303486) @@ -16,7 +16,7 @@ .\" .\" $FreeBSD$ .\" -.Dd July 28, 2016 +.Dd July 29, 2016 .Dt DIRNAME 3 .Os .Sh NAME @@ -56,10 +56,11 @@ by subsequent calls. .Pp Other vendor implementations of .Fn dirname -may modify the contents of the string passed to -.Fn dirname ; -this should be taken into account when writing code which calls this function -if portability is desired. +may store their result in the input buffer, +making it safe to use in multithreaded applications. +Future versions of +.Fx +will follow this approach as well. .Sh RETURN VALUES On successful completion, .Fn dirname
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