/***********************************************************************

*                                                                      *

*               This software is part of the ast package               *

*          Copyright (c) 1985-2011 AT&T Intellectual Property          *

*                      and is licensed under the                       *

*                 Eclipse Public License, Version 1.0                  *

*                    by AT&T Intellectual Property                     *

*                                                                      *

*                A copy of the License is available at                 *

*          http://www.eclipse.org/org/documents/epl-v10.html           *

*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

*                                                                      *

*              Information and Software Systems Research               *

*                            AT&T Research                             *

*                           Florham Park NJ                            *

*                                                                      *

*                 Glenn Fowler <gsf@research.att.com>                  *

*                  David Korn <dgk@research.att.com>                   *

*                   Phong Vo <kpv@research.att.com>                    *

*                                                                      *

***********************************************************************/

#pragma prototyped

/*

 * nftw implementation

 */

#include <ast.h>

#include <ftw.h>

static int	nftw_flags;

static int	(*nftw_userf)(const char*, const struct stat*, int, struct FTW*);

static int

nftw_user(Ftw_t* ftw)

{

	register int	n = ftw->info;

	struct FTW	nftw;

	struct stat	st;

	if (n & (FTW_C|FTW_NX))

		n = FTW_DNR;

	else if ((n & FTW_SL) && (!(nftw_flags & FTW_PHYSICAL) || stat(ftw->path, &st)))

		n = FTW_SLN;

	nftw.base = ftw->pathlen - ftw->namelen;

	nftw.level = ftw->level;

	nftw.quit = 0;

	n = (*nftw_userf)(ftw->path, &ftw->statb, n, &nftw);

	ftw->status = nftw.quit;

	return n;

}

int

nftw(const char* path, int(*userf)(const char*, const struct stat*, int, struct FTW*), int depth, int flags)

{

	NoP(depth);

	nftw_userf = userf;

	if (flags & FTW_CHDIR) flags &= ~FTW_DOT;

	else flags |= FTW_DOT;

	nftw_flags = flags;

	return ftwalk(path, nftw_user, flags, NiL);

}