| 1 | /* $OpenBSD: ftw.c,v 1.4 2004/07/07 16:05:23 millert Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Copyright (c) 2003, 2004 Todd C. Miller <Todd.Miller@courtesan.com>
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| 5 | *
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| 6 | * Permission to use, copy, modify, and distribute this software for any
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| 7 | * purpose with or without fee is hereby granted, provided that the above
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| 8 | * copyright notice and this permission notice appear in all copies.
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| 9 | *
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| 10 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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| 11 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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| 12 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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| 13 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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| 14 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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| 15 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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| 16 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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| 17 | *
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| 18 | * Sponsored in part by the Defense Advanced Research Projects
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| 19 | * Agency (DARPA) and Air Force Research Laboratory, Air Force
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| 20 | * Materiel Command, USAF, under agreement number F39502-99-1-0512.
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| 21 | */
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| 22 |
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| 23 | #if 0
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| 24 | #if defined(LIBC_SCCS) && !defined(lint)
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| 25 | static const char rcsid[] = "$OpenBSD: ftw.c,v 1.4 2004/07/07 16:05:23 millert Exp $";
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| 26 | #endif /* LIBC_SCCS and not lint */
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| 27 | #endif
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| 28 |
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| 29 | #include <sys/cdefs.h>
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| 30 | __FBSDID("$FreeBSD: src/lib/libc/gen/ftw.c,v 1.4 2004/08/24 13:00:55 tjr Exp $");
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| 31 |
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| 32 | #include <sys/types.h>
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| 33 | #include <sys/stat.h>
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| 34 | #include <errno.h>
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| 35 | #include <fts.h>
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| 36 | #include <ftw.h>
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| 37 | #include <limits.h>
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| 38 |
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| 39 | int
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| 40 | ftw(const char *path, int (*fn)(const char *, const struct stat *, int),
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| 41 | int nfds)
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| 42 | {
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| 43 | char * const paths[2] = { (char *)path, NULL };
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| 44 | FTSENT *cur;
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| 45 | FTS *ftsp;
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| 46 | int error = 0, fnflag, sverrno;
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| 47 |
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| 48 | /* XXX - nfds is currently unused */
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| 49 | if (nfds < 1 || nfds > OPEN_MAX) {
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| 50 | errno = EINVAL;
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| 51 | return (-1);
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| 52 | }
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| 53 |
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| 54 | ftsp = fts_open(paths, FTS_LOGICAL | FTS_COMFOLLOW | FTS_NOCHDIR, NULL);
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| 55 | if (ftsp == NULL)
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| 56 | return (-1);
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| 57 | while ((cur = fts_read(ftsp)) != NULL) {
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| 58 | switch (cur->fts_info) {
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| 59 | case FTS_D:
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| 60 | fnflag = FTW_D;
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| 61 | break;
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| 62 | case FTS_DNR:
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| 63 | fnflag = FTW_DNR;
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| 64 | break;
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| 65 | case FTS_DP:
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| 66 | /* we only visit in preorder */
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| 67 | continue;
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| 68 | case FTS_F:
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| 69 | case FTS_DEFAULT:
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| 70 | fnflag = FTW_F;
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| 71 | break;
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| 72 | case FTS_NS:
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| 73 | case FTS_NSOK:
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| 74 | case FTS_SLNONE:
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| 75 | fnflag = FTW_NS;
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| 76 | break;
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| 77 | case FTS_SL:
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| 78 | fnflag = FTW_SL;
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| 79 | break;
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| 80 | case FTS_DC:
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| 81 | errno = ELOOP;
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| 82 | /* FALLTHROUGH */
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| 83 | default:
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| 84 | error = -1;
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| 85 | goto done;
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| 86 | }
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| 87 | error = fn(cur->fts_path, cur->fts_statp, fnflag);
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| 88 | if (error != 0)
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| 89 | break;
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| 90 | }
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| 91 | done:
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| 92 | sverrno = errno;
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| 93 | if (fts_close(ftsp) != 0 && error == 0)
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| 94 | error = -1;
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| 95 | else
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| 96 | errno = sverrno;
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| 97 | return (error);
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| 98 | }
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