source: svn/trunk/newcon3bcm2_21bu/toolchain/mipsel-linux-uclibc/include/ftw.h

/* Copyright (C) 1992,1996,1997,1998,1999,2003 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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

/*
 *      X/Open Portability Guide 4.2: ftw.h
 */

#ifndef _FTW_H
#define _FTW_H  1

#include <features.h>

#include <sys/types.h>
#include <sys/stat.h>


__BEGIN_DECLS

/* Values for the FLAG argument to the user function passed to `ftw'
   and 'nftw'.  */
enum
{
  FTW_F,                /* Regular file.  */
#define FTW_F    FTW_F
  FTW_D,                /* Directory.  */
#define FTW_D    FTW_D
  FTW_DNR,              /* Unreadable directory.  */
#define FTW_DNR  FTW_DNR
  FTW_NS,               /* Unstatable file.  */
#define FTW_NS   FTW_NS

#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED

  FTW_SL,               /* Symbolic link.  */
# define FTW_SL  FTW_SL
#endif

#ifdef __USE_XOPEN_EXTENDED
/* These flags are only passed from the `nftw' function.  */
  FTW_DP,               /* Directory, all subdirs have been visited. */
# define FTW_DP  FTW_DP
  FTW_SLN               /* Symbolic link naming non-existing file.  */
# define FTW_SLN FTW_SLN

#endif  /* extended X/Open */
};


#ifdef __USE_XOPEN_EXTENDED
/* Flags for fourth argument of `nftw'.  */
enum
{
  FTW_PHYS = 1,         /* Perform physical walk, ignore symlinks.  */
# define FTW_PHYS       FTW_PHYS
  FTW_MOUNT = 2,        /* Report only files on same file system as the
                           argument.  */
# define FTW_MOUNT      FTW_MOUNT
  FTW_CHDIR = 4,        /* Change to current directory while processing it.  */
# define FTW_CHDIR      FTW_CHDIR
  FTW_DEPTH = 8         /* Report files in directory before directory itself.*/
# define FTW_DEPTH      FTW_DEPTH
};

/* Structure used for fourth argument to callback function for `nftw'.  */
struct FTW
  {
    int base;
    int level;
  };
#endif  /* extended X/Open */


/* Convenient types for callback functions.  */
typedef int (*__ftw_func_t) (__const char *__filename,
                             __const struct stat *__status, int __flag);
#ifdef __USE_LARGEFILE64
typedef int (*__ftw64_func_t) (__const char *__filename,
                               __const struct stat64 *__status, int __flag);
#endif
#ifdef __USE_XOPEN_EXTENDED
typedef int (*__nftw_func_t) (__const char *__filename,
                              __const struct stat *__status, int __flag,
                              struct FTW *__info);
# ifdef __USE_LARGEFILE64
typedef int (*__nftw64_func_t) (__const char *__filename,
                                __const struct stat64 *__status,
                                int __flag, struct FTW *__info);
# endif
#endif

/* Call a function on every element in a directory tree.

   This function is a possible cancellation point and therefore not
   marked with __THROW.  */
#ifndef __USE_FILE_OFFSET64
extern int ftw (__const char *__dir, __ftw_func_t __func, int __descriptors);
#else
# ifdef __REDIRECT
extern int __REDIRECT (ftw, (__const char *__dir, __ftw_func_t __func,
                             int __descriptors), ftw64);
# else
#  define ftw ftw64
# endif
#endif
#ifdef __USE_LARGEFILE64
extern int ftw64 (__const char *__dir, __ftw64_func_t __func,
                  int __descriptors);
#endif

#ifdef __USE_XOPEN_EXTENDED
/* Call a function on every element in a directory tree.  FLAG allows
   to specify the behaviour more detailed.

   This function is a possible cancellation point and therefore not
   marked with __THROW.  */
# ifndef __USE_FILE_OFFSET64
extern int nftw (__const char *__dir, __nftw_func_t __func, int __descriptors,
                 int __flag);
# else
#  ifdef __REDIRECT
extern int __REDIRECT (nftw, (__const char *__dir, __nftw_func_t __func,
                              int __descriptors, int __flag), nftw64);
#  else
#   define nftw nftw64
#  endif
# endif
# ifdef __USE_LARGEFILE64
extern int nftw64 (__const char *__dir, __nftw64_func_t __func,
                   int __descriptors, int __flag);
# endif
#endif

__END_DECLS

#endif  /* ftw.h */