Mercurial > gnulib
view tests/test-ftruncate.c @ 36940:c741bc27922a
maint: update all copyright year number ranges
Run "make update-copyright". Compare to commit 1602f0a from last year.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
---|---|
date | Tue, 01 Jan 2013 00:50:58 +0000 |
parents | 807a2defea28 |
children | 3a09cc104f4c |
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/* Test truncating a file. Copyright (C) 2011-2013 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 <http://www.gnu.org/licenses/>. */ #include <config.h> #include <unistd.h> #include "signature.h" SIGNATURE_CHECK (ftruncate, int, (int, off_t)); #include <errno.h> #include <fcntl.h> #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); } { 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; }