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/* posixdir.h -- Posix directory reading includes and defines. */
/* Copyright (C) 1987,1991,2012,2019,2021 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash 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.
Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
*/
/* This file should be included instead of <dirent.h> or <sys/dir.h>. */
#if !defined (_POSIXDIR_H_)
#define _POSIXDIR_H_
#if defined (HAVE_DIRENT_H)
# include <dirent.h>
# if defined (HAVE_STRUCT_DIRENT_D_NAMLEN)
# define D_NAMLEN(d) ((d)->d_namlen)
# else
# define D_NAMLEN(d) (strlen ((d)->d_name))
# endif /* !HAVE_STRUCT_DIRENT_D_NAMLEN */
#else
# if defined (HAVE_SYS_NDIR_H)
# include <sys/ndir.h>
# endif
# if defined (HAVE_SYS_DIR_H)
# include <sys/dir.h>
# endif
# if defined (HAVE_NDIR_H)
# include <ndir.h>
# endif
# if !defined (dirent)
# define dirent direct
# endif /* !dirent */
# define D_NAMLEN(d) ((d)->d_namlen)
#endif /* !HAVE_DIRENT_H */
/* The bash code fairly consistently uses d_fileno; make sure it's available */
#if defined (HAVE_STRUCT_DIRENT_D_INO) && !defined (HAVE_STRUCT_DIRENT_D_FILENO)
# define d_fileno d_ino
#endif
/* Posix does not require that the d_ino field be present, and some
systems do not provide it. */
#if !defined (HAVE_STRUCT_DIRENT_D_INO) || defined (BROKEN_DIRENT_D_INO)
# define REAL_DIR_ENTRY(dp) 1
#else
# define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
#endif /* _POSIX_SOURCE */
#if defined (HAVE_STRUCT_DIRENT_D_INO) && !defined (BROKEN_DIRENT_D_INO)
# define D_INO_AVAILABLE
#endif
/* Signal the rest of the code that it can safely use dirent.d_fileno */
#if defined (D_INO_AVAILABLE) || defined (HAVE_STRUCT_DIRENT_D_FILENO)
# define D_FILENO_AVAILABLE 1
#endif
#endif /* !_POSIXDIR_H_ */
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