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