From 758f820bcc0f68aeebac1717e537ca13a320b909 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:11:47 +0200 Subject: Adding upstream version 9.1. Signed-off-by: Daniel Baumann --- gnulib-tests/test-dup.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 gnulib-tests/test-dup.c (limited to 'gnulib-tests/test-dup.c') diff --git a/gnulib-tests/test-dup.c b/gnulib-tests/test-dup.c new file mode 100644 index 0000000..87bf6c7 --- /dev/null +++ b/gnulib-tests/test-dup.c @@ -0,0 +1,45 @@ +/* Test duplicating a file descriptor. + Copyright (C) 2011-2022 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +#include + +#include "signature.h" +SIGNATURE_CHECK (dup, int, (int)); + +#include + +#include "macros.h" + +int +main (void) +{ + /* Test behaviour for invalid file descriptors. */ + { + errno = 0; + ASSERT (dup (-1) == -1); + ASSERT (errno == EBADF); + } + { + close (99); + errno = 0; + ASSERT (dup (99) == -1); + ASSERT (errno == EBADF); + } + + return 0; +} -- cgit v1.2.3