1223215Sdelphij/*	$OpenBSD: ftw.c,v 1.5 2005/08/08 08:05:34 espie Exp $	*/
2134244Stjr
3131661Sdas/*
4134244Stjr * Copyright (c) 2003, 2004 Todd C. Miller <Todd.Miller@courtesan.com>
5131661Sdas *
6134244Stjr * Permission to use, copy, modify, and distribute this software for any
7134244Stjr * purpose with or without fee is hereby granted, provided that the above
8134244Stjr * copyright notice and this permission notice appear in all copies.
9131661Sdas *
10134244Stjr * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11134244Stjr * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12134244Stjr * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13134244Stjr * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14134244Stjr * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15134244Stjr * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16134244Stjr * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17134244Stjr *
18134244Stjr * Sponsored in part by the Defense Advanced Research Projects
19134244Stjr * Agency (DARPA) and Air Force Research Laboratory, Air Force
20134244Stjr * Materiel Command, USAF, under agreement number F39502-99-1-0512.
21131661Sdas */
22131661Sdas
23134244Stjr#include <sys/cdefs.h>
24134244Stjr__FBSDID("$FreeBSD$");
25134244Stjr
26134244Stjr#include <sys/types.h>
27131661Sdas#include <sys/stat.h>
28134244Stjr#include <errno.h>
29131661Sdas#include <fts.h>
30134244Stjr#include <ftw.h>
31131661Sdas
32134244Stjrint
33134244Stjrftw(const char *path, int (*fn)(const char *, const struct stat *, int),
34134244Stjr    int nfds)
35134244Stjr{
36134244Stjr	char * const paths[2] = { (char *)path, NULL };
37134244Stjr	FTSENT *cur;
38134244Stjr	FTS *ftsp;
39134244Stjr	int error = 0, fnflag, sverrno;
40131661Sdas
41134244Stjr	/* XXX - nfds is currently unused */
42239151Sjilles	if (nfds < 1) {
43134244Stjr		errno = EINVAL;
44134244Stjr		return (-1);
45134244Stjr	}
46131661Sdas
47134244Stjr	ftsp = fts_open(paths, FTS_LOGICAL | FTS_COMFOLLOW | FTS_NOCHDIR, NULL);
48134244Stjr	if (ftsp == NULL)
49134244Stjr		return (-1);
50134244Stjr	while ((cur = fts_read(ftsp)) != NULL) {
51134244Stjr		switch (cur->fts_info) {
52134244Stjr		case FTS_D:
53134244Stjr			fnflag = FTW_D;
54134244Stjr			break;
55134244Stjr		case FTS_DNR:
56134244Stjr			fnflag = FTW_DNR;
57134244Stjr			break;
58134244Stjr		case FTS_DP:
59134244Stjr			/* we only visit in preorder */
60134244Stjr			continue;
61134244Stjr		case FTS_F:
62134244Stjr		case FTS_DEFAULT:
63134244Stjr			fnflag = FTW_F;
64134244Stjr			break;
65134244Stjr		case FTS_NS:
66134244Stjr		case FTS_NSOK:
67134244Stjr		case FTS_SLNONE:
68134244Stjr			fnflag = FTW_NS;
69134244Stjr			break;
70134244Stjr		case FTS_SL:
71134244Stjr			fnflag = FTW_SL;
72134244Stjr			break;
73134244Stjr		case FTS_DC:
74134244Stjr			errno = ELOOP;
75134244Stjr			/* FALLTHROUGH */
76134244Stjr		default:
77134244Stjr			error = -1;
78134244Stjr			goto done;
79134244Stjr		}
80134244Stjr		error = fn(cur->fts_path, cur->fts_statp, fnflag);
81134244Stjr		if (error != 0)
82134244Stjr			break;
83134244Stjr	}
84134244Stjrdone:
85134244Stjr	sverrno = errno;
86134244Stjr	if (fts_close(ftsp) != 0 && error == 0)
87134244Stjr		error = -1;
88134244Stjr	else
89134244Stjr		errno = sverrno;
90134244Stjr	return (error);
91131661Sdas}
92