1 /* $NetBSD: ftw.c,v 1.1 2005/12/30 23:07:32 agc Exp $ */
2
3 /* From OpenBSD: ftw.c,v 1.2 2003/07/21 21:15:32 millert Exp */
4
5 /*
6 * Copyright (c) 2003 Todd C. Miller <Todd.Miller@courtesan.com>
7 *
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 *
20 * Sponsored in part by the Defense Advanced Research Projects
21 * Agency (DARPA) and Air Force Research Laboratory, Air Force
22 * Materiel Command, USAF, under agreement number F39502-99-1-0512.
23 */
24 #include <sys/cdefs.h>
25
26 #ifndef lint
27 __RCSID("$NetBSD: ftw.c,v 1.1 2005/12/30 23:07:32 agc Exp $");
28 #endif
29
30 #include <sys/types.h>
31 #include <sys/stat.h>
32 #include <errno.h>
33 #include <fts.h>
34 #include <ftw.h>
35 #include <limits.h>
36
37 int
ftw(const char * path,int (* fn)(const char *,const struct stat *,int),int nfds)38 ftw(const char *path, int (*fn)(const char *, const struct stat *, int),
39 int nfds)
40 {
41 /* LINTED */
42 char * const paths[2] = { __UNCONST(path), NULL };
43 FTSENT *cur;
44 FTS *ftsp;
45 int fnflag, error, sverrno;
46
47 /* XXX - nfds is currently unused */
48 if (nfds < 1 || nfds > OPEN_MAX) {
49 errno = EINVAL;
50 return (-1);
51 }
52
53 ftsp = fts_open(paths, FTS_COMFOLLOW | FTS_NOCHDIR, NULL);
54 if (ftsp == NULL)
55 return (-1);
56 error = 0;
57 while ((cur = fts_read(ftsp)) != NULL) {
58 switch (cur->fts_info) {
59 case FTS_D:
60 fnflag = FTW_D;
61 break;
62 case FTS_DNR:
63 fnflag = FTW_DNR;
64 break;
65 case FTS_DP:
66 /* we only visit in preorder */
67 continue;
68 case FTS_F:
69 case FTS_DEFAULT:
70 fnflag = FTW_F;
71 break;
72 case FTS_NS:
73 case FTS_NSOK:
74 case FTS_SLNONE:
75 fnflag = FTW_NS;
76 break;
77 case FTS_SL:
78 fnflag = FTW_SL;
79 break;
80 case FTS_DC:
81 errno = ELOOP;
82 /* FALLTHROUGH */
83 default:
84 error = -1;
85 goto done;
86 }
87 error = fn(cur->fts_path, cur->fts_statp, fnflag);
88 if (error != 0)
89 break;
90 }
91 done:
92 sverrno = errno;
93 if (fts_close(ftsp) != 0 && error == 0)
94 error = -1;
95 else
96 errno = sverrno;
97 return (error);
98 }
99