1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2010 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * nftw implementation 25 */ 26 27 #include <ast.h> 28 #include <ftw.h> 29 30 static int nftw_flags; 31 static int (*nftw_userf)(const char*, const struct stat*, int, struct FTW*); 32 33 static int 34 nftw_user(Ftw_t* ftw) 35 { 36 register int n = ftw->info; 37 struct FTW nftw; 38 struct stat st; 39 40 if (n & (FTW_C|FTW_NX)) 41 n = FTW_DNR; 42 else if ((n & FTW_SL) && (!(nftw_flags & FTW_PHYSICAL) || stat(ftw->path, &st))) 43 n = FTW_SLN; 44 nftw.base = ftw->pathlen - ftw->namelen; 45 nftw.level = ftw->level; 46 nftw.quit = 0; 47 n = (*nftw_userf)(ftw->path, &ftw->statb, n, &nftw); 48 ftw->status = nftw.quit; 49 return n; 50 } 51 52 int 53 nftw(const char* path, int(*userf)(const char*, const struct stat*, int, struct FTW*), int depth, int flags) 54 { 55 NoP(depth); 56 nftw_userf = userf; 57 if (flags & FTW_CHDIR) flags &= ~FTW_DOT; 58 else flags |= FTW_DOT; 59 nftw_flags = flags; 60 return ftwalk(path, nftw_user, flags, NiL); 61 } 62