From a07e000e82cb71238259e674529c37c12dc7d423 Mon Sep 17 00:00:00 2001 From: DJ Delorie Date: Fri, 10 May 2024 17:34:29 -0400 Subject: [PATCH] manual: add dup3 Reviewed-by: Florian Weimer --- manual/llio.texi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/manual/llio.texi b/manual/llio.texi index fae49d1433..fe1807a849 100644 --- a/manual/llio.texi +++ b/manual/llio.texi @@ -3415,6 +3415,14 @@ middle of calling @code{dup2} at which @var{new} is closed and not yet a duplicate of @var{old}. @end deftypefun +@deftypefun int dup3 (int @var{old}, int @var{new}, int @var{flags}) +@standards{Linux, unistd.h} +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +This function is the same as @code{dup2} but creates the new +descriptor as if it had been opened with flags @var{flags}. The only +allowed flag is @code{O_CLOEXEC}. +@end deftypefun + @deftypevr Macro int F_DUPFD @standards{POSIX.1, fcntl.h} This macro is used as the @var{command} argument to @code{fcntl}, to