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