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- /* provide a replacement openat function
- Copyright (C) 2004-2006, 2008-2021 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 <https://www.gnu.org/licenses/>. */
- /* written by Jim Meyering */
- #ifndef _GL_HEADER_OPENAT
- #define _GL_HEADER_OPENAT
- #include <fcntl.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <unistd.h>
- #include <stdbool.h>
- #ifndef _GL_INLINE_HEADER_BEGIN
- #error "Please include config.h first."
- #endif
- _GL_INLINE_HEADER_BEGIN
- #if !HAVE_OPENAT
- int openat_permissive (int fd, char const *file, int flags, mode_t mode,
- int *cwd_errno);
- bool openat_needs_fchdir (void);
- #else
- # define openat_permissive(Fd, File, Flags, Mode, Cwd_errno) \
- openat (Fd, File, Flags, Mode)
- # define openat_needs_fchdir() false
- #endif
- _Noreturn void openat_restore_fail (int);
- _Noreturn void openat_save_fail (int);
- /* Using these function names makes application code
- slightly more readable than it would be with
- fchownat (..., 0) or fchownat (..., AT_SYMLINK_NOFOLLOW). */
- #if GNULIB_CHOWNAT
- # ifndef CHOWNAT_INLINE
- # define CHOWNAT_INLINE _GL_INLINE
- # endif
- CHOWNAT_INLINE int
- chownat (int fd, char const *file, uid_t owner, gid_t group)
- {
- return fchownat (fd, file, owner, group, 0);
- }
- CHOWNAT_INLINE int
- lchownat (int fd, char const *file, uid_t owner, gid_t group)
- {
- return fchownat (fd, file, owner, group, AT_SYMLINK_NOFOLLOW);
- }
- #endif
- #if GNULIB_CHMODAT
- # ifndef CHMODAT_INLINE
- # define CHMODAT_INLINE _GL_INLINE
- # endif
- CHMODAT_INLINE int
- chmodat (int fd, char const *file, mode_t mode)
- {
- return fchmodat (fd, file, mode, 0);
- }
- CHMODAT_INLINE int
- lchmodat (int fd, char const *file, mode_t mode)
- {
- return fchmodat (fd, file, mode, AT_SYMLINK_NOFOLLOW);
- }
- #endif
- #if GNULIB_STATAT
- # ifndef STATAT_INLINE
- # define STATAT_INLINE _GL_INLINE
- # endif
- STATAT_INLINE int
- statat (int fd, char const *name, struct stat *st)
- {
- return fstatat (fd, name, st, 0);
- }
- STATAT_INLINE int
- lstatat (int fd, char const *name, struct stat *st)
- {
- return fstatat (fd, name, st, AT_SYMLINK_NOFOLLOW);
- }
- #endif
- /* For now, there are no wrappers named laccessat or leuidaccessat,
- since gnulib doesn't support faccessat(,AT_SYMLINK_NOFOLLOW) and
- since access rights on symlinks are of limited utility. Likewise,
- wrappers are not provided for accessat or euidaccessat, so as to
- avoid dragging in -lgen on some platforms. */
- _GL_INLINE_HEADER_END
- #endif /* _GL_HEADER_OPENAT */
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