1 /* $OpenBSD: ftw.c,v 1.5 2005/08/08 08:05:34 espie 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 #include <sys/cdefs.h> 24 #include <sys/types.h> 25 #include <sys/stat.h> 26 #include <errno.h> 27 #include <fts.h> 28 #include <ftw.h> 29 30 int 31 ftw(const char *path, int (*fn)(const char *, const struct stat *, int), 32 int nfds) 33 { 34 char * const paths[2] = { (char *)path, NULL }; 35 FTSENT *cur; 36 FTS *ftsp; 37 int error = 0, fnflag, sverrno; 38 39 /* XXX - nfds is currently unused */ 40 if (nfds < 1) { 41 errno = EINVAL; 42 return (-1); 43 } 44 45 ftsp = fts_open(paths, FTS_LOGICAL | FTS_COMFOLLOW | FTS_NOCHDIR, NULL); 46 if (ftsp == NULL) 47 return (-1); 48 while ((cur = fts_read(ftsp)) != NULL) { 49 switch (cur->fts_info) { 50 case FTS_D: 51 fnflag = FTW_D; 52 break; 53 case FTS_DNR: 54 fnflag = FTW_DNR; 55 break; 56 case FTS_DP: 57 /* we only visit in preorder */ 58 continue; 59 case FTS_F: 60 case FTS_DEFAULT: 61 fnflag = FTW_F; 62 break; 63 case FTS_NS: 64 case FTS_NSOK: 65 case FTS_SLNONE: 66 fnflag = FTW_NS; 67 break; 68 case FTS_SL: 69 fnflag = FTW_SL; 70 break; 71 case FTS_DC: 72 errno = ELOOP; 73 /* FALLTHROUGH */ 74 default: 75 error = -1; 76 goto done; 77 } 78 error = fn(cur->fts_path, cur->fts_statp, fnflag); 79 if (error != 0) 80 break; 81 } 82 done: 83 sverrno = errno; 84 if (fts_close(ftsp) != 0 && error == 0) 85 error = -1; 86 else 87 errno = sverrno; 88 return (error); 89 } 90