0 ˆÄà ƒh¹ÂÆ0 $ˆl–ß=¿Jå7µ6 ¸Ë· ˜´oÄ „œe¿ÁÃÇ1[/* Copyright (C) 1991-2000,2003-2005,2009,2010,2011,2012 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ /* * POSIX Standard: 5.1.2 Directory Operations */ #ifndef _DIRENT_H #define _DIRENT_H 1 #include __BEGIN_DECLS #include #ifdef __USE_XOPEN # ifndef __ino_t_defined # ifndef __USE_FILE_OFFSET64 typedef __ino_t ino_t; # else typedef __ino64_t ino_t; # endif # define __ino_t_defined # endif # if defined __USE_LARGEFILE64 && !defined __ino64_t_defined typedef __ino64_t ino64_t; # define __ino64_t_defined # endif #endif /* This file defines `struct dirent'. It defines the macro `_DIRENT_HAVE_D_NAMLEN' iff there is a `d_namlen' member that gives the length of `d_name'. It defines the macro `_DIRENT_HAVE_D_RECLEN' iff there is a `d_reclen' member that gives the size of the entire directory entry. It defines the macro `_DIRENT_HAVE_D_OFF' iff there is a `d_off' member that gives the file offset of the next directory entry. It defines the macro `_DIRENT_HAVE_D_TYPE' iff there is a `d_type' member that gives the type of the file. */ #include #if (defined __USE_BSD || defined __USE_MISC) && !defined d_fileno # define d_ino d_fileno /* Backward compatibility. */ #endif /* These macros extract size information from a `struct dirent *'. They may evaluate their argument multiple times, so it must not have side effects. Each of these may involve a relatively costly call to `strlen' on some systems, so these values should be cached. _D_EXACT_NAMLEN (DP) returns the length of DP->d_name, not including its terminating null character. _D_ALLOC_NAMLEN (DP) returns a size at least (_D_EXACT_NAMLEN (DP) + 1); that is, the allocation size needed to hold the DP->d_name string. Use this macro when you don't need the exact length, just an upper bound. This macro is less likely to require calling `strlen' than _D_EXACT_NAMLEN. */ #ifdef _DIRENT_HAVE_D_NAMLEN # define _D_EXACT_NAMLEN(d) ((d)->d_namlen) # define _D_ALLOC_NAMLEN(d) (_D_EXACT_NAMLEN (d) + 1) #else # define _D_EXACT_NAMLEN(d) (strlen ((d)->d_name)) # ifdef _DIRENT_HAVE_D_RECLEN # define _D_ALLOC_NAMLEN(d) (((char *) (d) + (d)->d_reclen) - &(d)->d_name[0]) # else # define _D_ALLOC_NAMLEN(d) (sizeof (d)->d_name > 1 ? sizeof (d)->d_name : \ _D_EXACT_NAMLEN (d) + 1) # endif #endif #ifdef __USE_BSD /* File types for `d_type'. */ enum { DT_UNKNOWN = 0, # define DT_UNKNOWN DT_UNKNOWN DT_FIFO = 1, # define DT_FIFO DT_FIFO DT_CHR = 2, # define DT_CHR DT_CHR DT_DIR = 4, # define DT_DIR DT_DIR DT_BLK = 6, # define DT_BLK DT_BLK DT_REG = 8, # define DT_REG DT_REG DT_LNK = 10, # define DT_LNK DT_LNK DT_SOCK = 12, # define DT_SOCK DT_SOCK DT_WHT = 14 # define DT_WHT DT_WHT }; /* Convert between stat structure types and directory types. */ # define IFTODT(mode) (((mode) & 0170000) >> 12) # define DTTOIF(dirtype) ((dirtype) << 12) #endif /* This is the data type of directory stream objects. The actual structure is opaque to users. */ typedef struct __dirstream DIR; /* Open a directory stream on NAME. Return a DIR stream on the directory, or NULL if it could not be opened. This function is a possible c