1 /* Copyright (C) 1992,1996-1999,2003,2004 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19 /* 20 * X/Open Portability Guide 4.2: ftw.h 21 */ 22 23 #ifndef _ATALK_FTW_H 24 #define _ATALK_FTW_H 1 25 26 #include <sys/types.h> 27 #include <sys/stat.h> 28 29 /* Values for the FLAG argument to the user function passed to `ftw' 30 and 'nftw'. */ 31 enum 32 { 33 FTW_F, /* Regular file. */ 34 #define FTW_F FTW_F 35 FTW_D, /* Directory. */ 36 #define FTW_D FTW_D 37 FTW_DNR, /* Unreadable directory. */ 38 #define FTW_DNR FTW_DNR 39 FTW_NS, /* Unstatable file. */ 40 #define FTW_NS FTW_NS 41 FTW_SL, /* Symbolic link. */ 42 # define FTW_SL FTW_SL 43 44 /* These flags are only passed from the `nftw' function. */ 45 FTW_DP, /* Directory, all subdirs have been visited. */ 46 # define FTW_DP FTW_DP 47 FTW_SLN /* Symbolic link naming non-existing file. */ 48 # define FTW_SLN FTW_SLN 49 }; 50 51 52 /* Flags for fourth argument of `nftw'. */ 53 enum 54 { 55 FTW_PHYS = 1, /* Perform physical walk, ignore symlinks. */ 56 # define FTW_PHYS FTW_PHYS 57 FTW_MOUNT = 2, /* Report only files on same file system as the 58 argument. */ 59 # define FTW_MOUNT FTW_MOUNT 60 FTW_CHDIR = 4, /* Change to current directory while processing it. */ 61 # define FTW_CHDIR FTW_CHDIR 62 FTW_DEPTH = 8, /* Report files in directory before directory itself.*/ 63 # define FTW_DEPTH FTW_DEPTH 64 FTW_ACTIONRETVAL = 16 /* Assume callback to return FTW_* values instead of 65 zero to continue and non-zero to terminate. */ 66 # define FTW_ACTIONRETVAL FTW_ACTIONRETVAL 67 }; 68 69 /* Return values from callback functions. */ 70 enum 71 { 72 FTW_CONTINUE = 0, /* Continue with next sibling or for FTW_D with the 73 first child. */ 74 # define FTW_CONTINUE FTW_CONTINUE 75 FTW_STOP = 1, /* Return from `ftw' or `nftw' with FTW_STOP as return 76 value. */ 77 # define FTW_STOP FTW_STOP 78 FTW_SKIP_SUBTREE = 2, /* Only meaningful for FTW_D: Don't walk through the 79 subtree, instead just continue with its next 80 sibling. */ 81 # define FTW_SKIP_SUBTREE FTW_SKIP_SUBTREE 82 FTW_SKIP_SIBLINGS = 3,/* Continue with FTW_DP callback for current directory 83 (if FTW_DEPTH) and then its siblings. */ 84 # define FTW_SKIP_SIBLINGS FTW_SKIP_SIBLINGS 85 }; 86 87 /* Structure used for fourth argument to callback function for `nftw'. */ 88 struct FTW 89 { 90 int base; 91 int level; 92 }; 93 94 /* Convenient types for callback functions. */ 95 typedef int (*nftw_func_t) (const char *filename, 96 const struct stat *status, 97 int flag, 98 struct FTW *info); 99 #define NFTW_FUNC_T nftw_func_t 100 101 typedef void (*dir_notification_func_t) (void); 102 103 extern int nftw(const char *dir, 104 nftw_func_t func, 105 dir_notification_func_t up, 106 int descriptors, 107 int flag); 108 109 #endif /* ATALK_FTW_H */ 110