manual: Document O_DIRECTORY

bminor · May 17, 2019 · fef7c63 · fef7c63
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diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,7 @@
+2019-05-17  Florian Weimer  <fweimer@redhat.com>
+
+	* manual/llio.texi (Open-time Flags): Document O_DIRECTORY.
+
 2019-05-16  Joseph Myers  <joseph@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/alpha/kernel-features.h

diff --git a/manual/llio.texi b/manual/llio.texi
@@ -3671,6 +3671,13 @@ The @code{O_EXCL} flag has a special meaning in combination with
 @code{O_TMPFILE}; see below.
 @end deftypevr
 
+@deftypevr Macro int O_DIRECTORY
+@standards{POSIX.1, fcntl.h}
+If set, the open operation fails if the given name is not the name of
+a directory.  The @code{errno} variable is set to @code{ENOTDIR} for
+this error condition.
+@end deftypevr
+
 @deftypevr Macro int O_TMPFILE
 @standards{GNU, fcntl.h}
 If this flag is specified, functions in the @code{open} family create an