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/* $OpenBSD: ftw.c,v 1.5 2005/08/08 08:05:34 espie Exp $ */ |
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/* |
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* Copyright (c) 2003, 2004 Todd C. Miller <Todd.Miller@courtesan.com> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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* |
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* Sponsored in part by the Defense Advanced Research Projects |
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* Agency (DARPA) and Air Force Research Laboratory, Air Force |
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* Materiel Command, USAF, under agreement number F39502-99-1-0512. |
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*/ |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <errno.h> |
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#include <fts.h> |
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#include <ftw.h> |
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#include <limits.h> |
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int |
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ftw(const char *path, int (*fn)(const char *, const struct stat *, int), |
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int nfds) |
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{ |
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char * const paths[2] = { (char *)path, NULL }; |
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FTSENT *cur; |
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FTS *ftsp; |
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int error = 0, fnflag, sverrno; |
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/* XXX - nfds is currently unused */ |
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if (nfds < 1 || nfds > OPEN_MAX) { |
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errno = EINVAL; |
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return (-1); |
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} |
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ftsp = fts_open(paths, FTS_LOGICAL | FTS_COMFOLLOW | FTS_NOCHDIR, NULL); |
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if (ftsp == NULL) |
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return (-1); |
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while ((cur = fts_read(ftsp)) != NULL) { |
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switch (cur->fts_info) { |
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case FTS_D: |
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fnflag = FTW_D; |
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break; |
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case FTS_DNR: |
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fnflag = FTW_DNR; |
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break; |
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case FTS_DP: |
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/* we only visit in preorder */ |
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continue; |
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case FTS_F: |
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case FTS_DEFAULT: |
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fnflag = FTW_F; |
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break; |
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case FTS_NS: |
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case FTS_NSOK: |
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case FTS_SLNONE: |
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fnflag = FTW_NS; |
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break; |
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case FTS_SL: |
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fnflag = FTW_SL; |
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break; |
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case FTS_DC: |
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errno = ELOOP; |
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/* FALLTHROUGH */ |
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default: |
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error = -1; |
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goto done; |
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} |
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error = fn(cur->fts_path, cur->fts_statp, fnflag); |
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if (error != 0) |
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break; |
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} |
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done: |
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sverrno = errno; |
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if (fts_close(ftsp) != 0 && error == 0) |
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error = -1; |
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else |
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errno = sverrno; |
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return (error); |
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} |