1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                  Common Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*            http://www.opensource.org/licenses/cpl1.0.txt             *
11*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#pragma prototyped
23/*
24 * nftw implementation
25 */
26
27#include <ast.h>
28#include <ftw.h>
29
30static int	nftw_flags;
31static int	(*nftw_userf)(const char*, const struct stat*, int, struct FTW*);
32
33static int
34nftw_user(Ftw_t* ftw)
35{
36	register int	n = ftw->info;
37	struct FTW	nftw;
38	struct stat	st;
39
40	if (n & (FTW_C|FTW_NX))
41		n = FTW_DNR;
42	else if ((n & FTW_SL) && (!(nftw_flags & FTW_PHYSICAL) || stat(ftw->path, &st)))
43		n = FTW_SLN;
44	nftw.base = ftw->pathlen - ftw->namelen;
45	nftw.level = ftw->level;
46	nftw.quit = 0;
47	n = (*nftw_userf)(ftw->path, &ftw->statb, n, &nftw);
48	ftw->status = nftw.quit;
49	return n;
50}
51
52int
53nftw(const char* path, int(*userf)(const char*, const struct stat*, int, struct FTW*), int depth, int flags)
54{
55	NoP(depth);
56	nftw_userf = userf;
57	if (flags & FTW_CHDIR) flags &= ~FTW_DOT;
58	else flags |= FTW_DOT;
59	nftw_flags = flags;
60	return ftwalk(path, nftw_user, flags, NiL);
61}
62