From 29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:21:29 +0200 Subject: Adding upstream version 1:0.1.9998svn3589+dfsg. Signed-off-by: Daniel Baumann --- src/grep/gnulib-tests/test-ftruncate.c | 60 ++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/grep/gnulib-tests/test-ftruncate.c (limited to 'src/grep/gnulib-tests/test-ftruncate.c') diff --git a/src/grep/gnulib-tests/test-ftruncate.c b/src/grep/gnulib-tests/test-ftruncate.c new file mode 100644 index 0000000..d11b8eb --- /dev/null +++ b/src/grep/gnulib-tests/test-ftruncate.c @@ -0,0 +1,60 @@ +/* Test truncating a file. + Copyright (C) 2011-2021 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 (ftruncate, int, (int, off_t)); + +#include +#include + +#include "macros.h" + +int +main (int argc, char *argv[]) +{ + const char *filename = argv[1]; + + /* Test behaviour for invalid file descriptors. */ + { + errno = 0; + ASSERT (ftruncate (-1, 0) == -1); + ASSERT (errno == EBADF); + } + { + close (99); + errno = 0; + ASSERT (ftruncate (99, 0) == -1); + ASSERT (errno == EBADF); + } + + /* Test behaviour for read-only file descriptors. */ + { + int fd = open (filename, O_RDONLY); + ASSERT (fd >= 0); + errno = 0; + ASSERT (ftruncate (fd, 0) == -1); + ASSERT (errno == EBADF || errno == EINVAL + || errno == EACCES /* seen on mingw */ + ); + close (fd); + } + + return 0; +} -- cgit v1.2.3