/usr/include/ftw.h is in libc6-dev 2.23-0ubuntu10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | /* Copyright (C) 1992-2016 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
<http://www.gnu.org/licenses/>. */
/*
* 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_MISC || 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
# ifdef __USE_GNU
,
FTW_ACTIONRETVAL = 16 /* Assume callback to return FTW_* values instead of
zero to continue and non-zero to terminate. */
# define FTW_ACTIONRETVAL FTW_ACTIONRETVAL
# endif
};
#ifdef __USE_GNU
/* Return values from callback functions. */
enum
{
FTW_CONTINUE = 0, /* Continue with next sibling or for FTW_D with the
first child. */
# define FTW_CONTINUE FTW_CONTINUE
FTW_STOP = 1, /* Return from `ftw' or `nftw' with FTW_STOP as return
value. */
# define FTW_STOP FTW_STOP
FTW_SKIP_SUBTREE = 2, /* Only meaningful for FTW_D: Don't walk through the
subtree, instead just continue with its next
sibling. */
# define FTW_SKIP_SUBTREE FTW_SKIP_SUBTREE
FTW_SKIP_SIBLINGS = 3,/* Continue with FTW_DP callback for current directory
(if FTW_DEPTH) and then its siblings. */
# define FTW_SKIP_SIBLINGS FTW_SKIP_SIBLINGS
};
#endif
/* 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)
__nonnull ((1, 2));
#else
# ifdef __REDIRECT
extern int __REDIRECT (ftw, (const char *__dir, __ftw_func_t __func,
int __descriptors), ftw64) __nonnull ((1, 2));
# else
# define ftw ftw64
# endif
#endif
#ifdef __USE_LARGEFILE64
extern int ftw64 (const char *__dir, __ftw64_func_t __func,
int __descriptors) __nonnull ((1, 2));
#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) __nonnull ((1, 2));
# else
# ifdef __REDIRECT
extern int __REDIRECT (nftw, (const char *__dir, __nftw_func_t __func,
int __descriptors, int __flag), nftw64)
__nonnull ((1, 2));
# else
# define nftw nftw64
# endif
# endif
# ifdef __USE_LARGEFILE64
extern int nftw64 (const char *__dir, __nftw64_func_t __func,
int __descriptors, int __flag) __nonnull ((1, 2));
# endif
#endif
__END_DECLS
#endif /* ftw.h */
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