1/* $NetBSD$ */ 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("$NetBSD$"); 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 37int 38ftw(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 } 91done: 92 sverrno = errno; 93 if (fts_close(ftsp) != 0 && error == 0) 94 error = -1; 95 else 96 errno = sverrno; 97 return (error); 98} 99