1/* $OpenBSD: nftw.c,v 1.4 2004/07/07 16:05:23 millert Exp $ */ 2 3/* 4 * Copyright (c) 2003, 2004 Todd C. Miller <Todd.Miller@courtesan.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 * 18 * Sponsored in part by the Defense Advanced Research Projects 19 * Agency (DARPA) and Air Force Research Laboratory, Air Force 20 * Materiel Command, USAF, under agreement number F39502-99-1-0512. 21 */ 22 23#if 0 24#if defined(LIBC_SCCS) && !defined(lint) 25static const char rcsid[] = "$OpenBSD: nftw.c,v 1.4 2004/07/07 16:05:23 millert Exp $"; 26#endif /* LIBC_SCCS and not lint */ 27#endif 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD$"); 31 32#include <sys/types.h> 33#include <sys/stat.h> 34#include <errno.h> 35#include <fts.h> 36#include <ftw.h> 37 38int 39nftw(const char *path, int (*fn)(const char *, const struct stat *, int, 40 struct FTW *), int nfds, int ftwflags) 41{ 42 char * const paths[2] = { (char *)path, NULL }; 43 struct FTW ftw; 44 FTSENT *cur; 45 FTS *ftsp; 46 int error = 0, ftsflags, fnflag, postorder, sverrno; 47 48 /* XXX - nfds is currently unused */ 49 if (nfds < 1) { 50 errno = EINVAL; 51 return (-1); 52 } 53 54 ftsflags = FTS_COMFOLLOW; 55 if (!(ftwflags & FTW_CHDIR)) 56 ftsflags |= FTS_NOCHDIR; 57 if (ftwflags & FTW_MOUNT) 58 ftsflags |= FTS_XDEV; 59 if (ftwflags & FTW_PHYS) 60 ftsflags |= FTS_PHYSICAL; 61 else 62 ftsflags |= FTS_LOGICAL; 63 postorder = (ftwflags & FTW_DEPTH) != 0; 64 ftsp = fts_open(paths, ftsflags, NULL); 65 if (ftsp == NULL) 66 return (-1); 67 while ((cur = fts_read(ftsp)) != NULL) { 68 switch (cur->fts_info) { 69 case FTS_D: 70 if (postorder) 71 continue; 72 fnflag = FTW_D; 73 break; 74 case FTS_DNR: 75 fnflag = FTW_DNR; 76 break; 77 case FTS_DP: 78 if (!postorder) 79 continue; 80 fnflag = FTW_DP; 81 break; 82 case FTS_F: 83 case FTS_DEFAULT: 84 fnflag = FTW_F; 85 break; 86 case FTS_NS: 87 case FTS_NSOK: 88 fnflag = FTW_NS; 89 break; 90 case FTS_SL: 91 fnflag = FTW_SL; 92 break; 93 case FTS_SLNONE: 94 fnflag = FTW_SLN; 95 break; 96 case FTS_DC: 97 errno = ELOOP; 98 /* FALLTHROUGH */ 99 default: 100 error = -1; 101 goto done; 102 } 103 ftw.base = cur->fts_pathlen - cur->fts_namelen; 104 ftw.level = cur->fts_level; 105 error = fn(cur->fts_path, cur->fts_statp, fnflag, &ftw); 106 if (error != 0) 107 break; 108 } 109done: 110 sverrno = errno; 111 if (fts_close(ftsp) != 0 && error == 0) 112 error = -1; 113 else 114 errno = sverrno; 115 return (error); 116} 117