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| author | jilles <jilles@FreeBSD.org> | 2016-12-04 15:55:59 +0000 |
|---|---|---|
| committer | jilles <jilles@FreeBSD.org> | 2016-12-04 15:55:59 +0000 |
| commit | ccf958c4684e753bca88fbe5b9eedbaf803fb5ec (patch) | |
| tree | 6f98cf43edbceeb34339d49d476d4d517c77beff /lib/libc | |
| parent | 7f7247bd2777a8e1e3f557763412baa8a2a4f32b (diff) | |
| download | FreeBSD-src-ccf958c4684e753bca88fbe5b9eedbaf803fb5ec.zip FreeBSD-src-ccf958c4684e753bca88fbe5b9eedbaf803fb5ec.tar.gz | |
MFC r309026: open(2): Clarify non-POSIX error when opening a symlink with
O_NOFOLLOW.
We return [EMLINK] instead of [ELOOP] when trying to open a symlink with
O_NOFOLLOW, so that the original case of [ELOOP] can be distinguished. Code
like cmp -h and xz takes advantage of this.
PR: 214633
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/sys/open.2 | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/lib/libc/sys/open.2 b/lib/libc/sys/open.2 index a546666..1dbc493 100644 --- a/lib/libc/sys/open.2 +++ b/lib/libc/sys/open.2 @@ -28,7 +28,7 @@ .\" @(#)open.2 8.2 (Berkeley) 11/16/93 .\" $FreeBSD$ .\" -.Dd April 2, 2015 +.Dd November 22, 2016 .Dt OPEN 2 .Os .Sh NAME @@ -471,6 +471,22 @@ The .Fn openat function was introduced in .Fx 8.0 . +.Sh STANDARDS +These functions are specified by +.St -p1003.1-2008 . +.Fx +sets +.Va errno +to +.Er EMLINK instead of +.Er ELOOP +as specified by +.Tn POSIX +when +.Dv O_NOFOLLOW +is set in flags and the final component of pathname is a symbolic link +to distinguish it from the case of too many symbolic link traversals +in one of its non-final components. .Sh BUGS The Open Group Extended API Set 2 specification requires that the test for whether |
