| Nick Kralevich | 5e58ea0 | 2012-09-12 13:21:25 -0700 | [diff] [blame] | 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 |
| 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 | } |