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-rw-r--r--tests/openat-priv.h74
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diff --git a/tests/openat-priv.h b/tests/openat-priv.h
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--- a/tests/openat-priv.h
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-/* Internals for openat-like functions.
-
- Copyright (C) 2005-2006, 2009-2024 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/>. */
-
-/* written by Jim Meyering */
-
-#ifndef _GL_HEADER_OPENAT_PRIV
-#define _GL_HEADER_OPENAT_PRIV
-
-#include <errno.h>
-#include <limits.h>
-#include <stdlib.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* Maximum number of bytes that it is safe to allocate as a single
- array on the stack, and that is known as a compile-time constant.
- The assumption is that we'll touch the array very quickly, or a
- temporary very near the array, provoking an out-of-memory trap. On
- some operating systems, there is only one guard page for the stack,
- and a page size can be as small as 4096 bytes. Subtract 64 in the
- hope that this will let the compiler touch a nearby temporary and
- provoke a trap. */
-#define SAFER_ALLOCA_MAX (4096 - 64)
-
-#define SAFER_ALLOCA(m) ((m) < SAFER_ALLOCA_MAX ? (m) : SAFER_ALLOCA_MAX)
-
-#if defined PATH_MAX
-# define OPENAT_BUFFER_SIZE SAFER_ALLOCA (PATH_MAX)
-#elif defined _XOPEN_PATH_MAX
-# define OPENAT_BUFFER_SIZE SAFER_ALLOCA (_XOPEN_PATH_MAX)
-#else
-# define OPENAT_BUFFER_SIZE SAFER_ALLOCA (1024)
-#endif
-
-char *openat_proc_name (char buf[OPENAT_BUFFER_SIZE], int fd, char const *file);
-
-/* Trying to access a BUILD_PROC_NAME file will fail on systems without
- /proc support, and even on systems *with* ProcFS support. Return
- nonzero if the failure may be legitimate, e.g., because /proc is not
- readable, or the particular .../fd/N directory is not present. */
-#define EXPECTED_ERRNO(Errno) \
- ((Errno) == ENOTDIR || (Errno) == ENOENT \
- || (Errno) == EPERM || (Errno) == EACCES \
- || (Errno) == ENOSYS /* Solaris 8 */ \
- || (Errno) == EOPNOTSUPP /* FreeBSD */)
-
-/* Wrapper function shared among linkat and renameat. */
-int at_func2 (int fd1, char const *file1,
- int fd2, char const *file2,
- int (*func) (char const *file1, char const *file2));
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _GL_HEADER_OPENAT_PRIV */