1 /* $OpenBSD: ftw.c,v 1.4 2004/07/07 16:05:23 millert Exp $ */
2
3 /*
4 * Copyright (c) 2003, 2004 Todd C. Miller <Todd.Miller@courtesan.com>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 *
18 * Sponsored in part by the Defense Advanced Research Projects
19 * Agency (DARPA) and Air Force Research Laboratory, Air Force
20 * Materiel Command, USAF, under agreement number F39502-99-1-0512.
21 *
22 * $FreeBSD: src/lib/libc/gen/ftw.c,v 1.4 2004/08/24 13:00:55 tjr Exp $
23 */
24
25 #include <sys/types.h>
26 #include <sys/stat.h>
27 #include <errno.h>
28 #include <fts.h>
29 #include <ftw.h>
30 #include <limits.h>
31
32 int
ftw(const char * path,int (* fn)(const char *,const struct stat *,int),int nfds)33 ftw(const char *path, int (*fn)(const char *, const struct stat *, int),
34 int nfds)
35 {
36 char * const paths[2] = { (char *)path, NULL };
37 FTSENT *cur;
38 FTS *ftsp;
39 int error = 0, fnflag, sverrno;
40
41 /* XXX - nfds is currently unused */
42 if (nfds < 1 || nfds > OPEN_MAX) {
43 errno = EINVAL;
44 return (-1);
45 }
46
47 ftsp = fts_open(paths, FTS_LOGICAL | FTS_COMFOLLOW | FTS_NOCHDIR, NULL);
48 if (ftsp == NULL)
49 return (-1);
50 while ((cur = fts_read(ftsp)) != NULL) {
51 switch (cur->fts_info) {
52 case FTS_D:
53 fnflag = FTW_D;
54 break;
55 case FTS_DNR:
56 fnflag = FTW_DNR;
57 break;
58 case FTS_DP:
59 /* we only visit in preorder */
60 continue;
61 case FTS_F:
62 case FTS_DEFAULT:
63 fnflag = FTW_F;
64 break;
65 case FTS_NS:
66 case FTS_NSOK:
67 case FTS_SLNONE:
68 fnflag = FTW_NS;
69 break;
70 case FTS_SL:
71 fnflag = FTW_SL;
72 break;
73 case FTS_DC:
74 errno = ELOOP;
75 /* FALLTHROUGH */
76 default:
77 error = -1;
78 goto done;
79 }
80 error = fn(cur->fts_path, cur->fts_statp, fnflag);
81 if (error != 0)
82 break;
83 }
84 done:
85 sverrno = errno;
86 if (fts_close(ftsp) != 0 && error == 0)
87 error = -1;
88 else
89 errno = sverrno;
90 return (error);
91 }
92