Mercurial > gnulib
view tests/test-faccessat.c @ 40212:8da9577294da
unistr/*, uniconv/*: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size.
* lib/unistr/u-cpy-alloc.h (FUNC): Likewise.
* lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise.
* lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 00:01:47 +0100 |
parents | b06060465f09 |
children |
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/* Test checking user's permissions for a file. Copyright (C) 2011-2019 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 <https://www.gnu.org/licenses/>. */ #include <config.h> #include <unistd.h> #include "signature.h" SIGNATURE_CHECK (faccessat, int, (int, const char *, int, int)); #include <errno.h> #include <fcntl.h> #include "macros.h" #define BASE "test-faccessat.t" int main (void) { /* Test behaviour for invalid file descriptors. */ { errno = 0; ASSERT (faccessat (-1, "foo", F_OK, 0) == -1); ASSERT (errno == EBADF); } { close (99); errno = 0; ASSERT (faccessat (99, "foo", F_OK, 0) == -1); ASSERT (errno == EBADF); } /* Test behavior with trailing slash. */ unlink (BASE "file"); ASSERT (faccessat (AT_FDCWD, ".", X_OK, 0) == 0); ASSERT (faccessat (AT_FDCWD, "./", X_OK, 0) == 0); ASSERT (close (open (BASE "file", O_CREAT | O_WRONLY, 0)) == 0); ASSERT (faccessat (AT_FDCWD, BASE "file", F_OK, 0) == 0); ASSERT (faccessat (AT_FDCWD, BASE "file/", F_OK, 0) != 0); unlink (BASE "link1"); if (symlink (".", BASE "link1") == 0) { ASSERT (faccessat (AT_FDCWD, BASE "link1", X_OK, 0) == 0); ASSERT (faccessat (AT_FDCWD, BASE "link1/", X_OK, 0) == 0); unlink (BASE "link2"); ASSERT (symlink (BASE "file", BASE "link2") == 0); ASSERT (faccessat (AT_FDCWD, BASE "link2", F_OK, 0) == 0); ASSERT (faccessat (AT_FDCWD, BASE "link2/", F_OK, 0) != 0); unlink (BASE "link2"); unlink (BASE "link3"); ASSERT (symlink (BASE "no-such-file", BASE "link3") == 0); ASSERT (faccessat (AT_FDCWD, BASE "link3", F_OK, 0) != 0); ASSERT (faccessat (AT_FDCWD, BASE "link3/", F_OK, 0) != 0); unlink (BASE "link3"); } unlink (BASE "link1"); unlink (BASE "file"); return 0; }