freebsd-dev/include/ftw.h
das 37bdd6c876 Add implementations of ftw(3) and nftw(3) and the corresponding header
ftw.h.  This is the implementation written by Joel Baker
<fenton@debian.org> for inclusion in NetBSD, but with several
bugfixes.

Obtained from:	Debian
2004-07-05 23:13:16 +00:00

108 lines
3.2 KiB
C

/*
* Copyright (c) 2003 by Joel Baker.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Author nor the names of any contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _FTW_H
#define _FTW_H
#include <sys/stat.h>
__BEGIN_DECLS
/* Enumerated values for 'flag' when calling [n]ftw */
enum {
FTW_D, /* Directories */
FTW_DNR, /* Unreadable directory */
FTW_F, /* Regular files */
FTW_SL, /* Symbolic link */
FTW_NS, /* stat(2) failed */
#if __XSI_VISIBLE /* X/Open */
/* Flags for nftw only */
FTW_DP, /* Directory, subdirs visited */
FTW_SLN, /* Dangling symlink */
#endif /* __XSI_VISIBLE */
};
#if __XSI_VISIBLE /* X/Open */
/* Enumerated values for 'flags' when calling nftw */
enum {
FTW_CHDIR = 1, /* Do a chdir(2) when entering a directory */
FTW_DEPTH = 2, /* Report files first (before directory) */
FTW_MOUNT = 4, /* Single filesystem */
FTW_PHYS = 8 /* Physical walk; ignore symlinks */
};
#define FTW_PHYS FTW_PHYS
#define FTW_MOUNT FTW_MOUNT
#define FTW_CHDIR FTW_CHDIR
#define FTW_DEPTH FTW_DEPTH
/* FTW struct for callbacks from nftw */
struct FTW {
int base;
int level;
};
#endif /* __XSI_VISIBLE */
/* Typecasts for callback functions */
typedef int (*__ftw_func_t) \
(const char *file, const struct stat *status, int flag);
/* ftw: walk a directory tree, calling a function for each element */
extern int ftw (const char *dir, __ftw_func_t func, int descr);
#if __XSI_VISIBLE /* X/Open */
typedef int (*__nftw_func_t) \
(const char *file, const struct stat *status, int flag, struct FTW *detail);
/* nftw: walk a directory tree, calling a function for each element; much
* like ftw, but with behavior flags and minty freshness.
*/
extern int nftw (const char *dir, __nftw_func_t func, int descr, int flags);
#endif /* __XSI_VISIBLE */
__END_DECLS
#endif /* _FTW_H */