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/* Copyright (C) 1992, 1996, 1997, 1998, 1999 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. */
#ifndef __USE_FILE_OFFSET64
extern int ftw (__const char *__dir, __ftw_func_t __func, int __descriptors)
__THROW;
#else
# ifdef __REDIRECT
extern int __REDIRECT (ftw, (__const char *__dir, __ftw_func_t __func,
int __descriptors) __THROW, ftw64);
# else
# define ftw ftw64
# endif
#endif
#ifdef __USE_LARGEFILE64
extern int ftw64 (__const char *__dir, __ftw64_func_t __func,
int __descriptors) __THROW;
#endif
#ifdef __USE_XOPEN_EXTENDED
/* Call a function on every element in a directory tree. FLAG allows
to specify the behaviour more detailed. */
# ifndef __USE_FILE_OFFSET64
extern int nftw (__const char *__dir, __nftw_func_t __func, int __descriptors,
int __flag) __THROW;
# else
# ifdef __REDIRECT
extern int __REDIRECT (nftw, (__const char *__dir, __nftw_func_t __func,
int __descriptors, int __flag) __THROW, nftw64);
# else
# define nftw nftw64
# endif
# endif
# ifdef __USE_LARGEFILE64
extern int nftw64 (__const char *__dir, __nftw64_func_t __func,
int __descriptors, int __flag) __THROW;
# endif
#endif
__END_DECLS
#endif /* ftw.h */
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