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- /* Copyright (C) 1992,1996-1999,2003,2004 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
- /*
- * X/Open Portability Guide 4.2: ftw.h
- */
- #ifndef _FTW_H
- #define _FTW_H 1
- #include <features.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- __BEGIN_DECLS
- /* Values for the FLAG argument to the user function passed to `ftw'
- and 'nftw'. */
- enum
- {
- FTW_F, /* Regular file. */
- #define FTW_F FTW_F
- FTW_D, /* Directory. */
- #define FTW_D FTW_D
- FTW_DNR, /* Unreadable directory. */
- #define FTW_DNR FTW_DNR
- FTW_NS, /* Unstatable file. */
- #define FTW_NS FTW_NS
- #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
- FTW_SL, /* Symbolic link. */
- # define FTW_SL FTW_SL
- #endif
- #ifdef __USE_XOPEN_EXTENDED
- /* These flags are only passed from the `nftw' function. */
- FTW_DP, /* Directory, all subdirs have been visited. */
- # define FTW_DP FTW_DP
- FTW_SLN /* Symbolic link naming non-existing file. */
- # define FTW_SLN FTW_SLN
- #endif /* extended X/Open */
- };
- #ifdef __USE_XOPEN_EXTENDED
- /* Flags for fourth argument of `nftw'. */
- enum
- {
- FTW_PHYS = 1, /* Perform physical walk, ignore symlinks. */
- # define FTW_PHYS FTW_PHYS
- FTW_MOUNT = 2, /* Report only files on same file system as the
- argument. */
- # define FTW_MOUNT FTW_MOUNT
- FTW_CHDIR = 4, /* Change to current directory while processing it. */
- # define FTW_CHDIR FTW_CHDIR
- FTW_DEPTH = 8 /* Report files in directory before directory itself.*/
- # define FTW_DEPTH FTW_DEPTH
- # ifdef __USE_GNU
- ,
- FTW_ACTIONRETVAL = 16 /* Assume callback to return FTW_* values instead of
- zero to continue and non-zero to terminate. */
- # define FTW_ACTIONRETVAL FTW_ACTIONRETVAL
- # endif
- };
- #ifdef __USE_GNU
- /* Return values from callback functions. */
- enum
- {
- FTW_CONTINUE = 0, /* Continue with next sibling or for FTW_D with the
- first child. */
- # define FTW_CONTINUE FTW_CONTINUE
- FTW_STOP = 1, /* Return from `ftw' or `nftw' with FTW_STOP as return
- value. */
- # define FTW_STOP FTW_STOP
- FTW_SKIP_SUBTREE = 2, /* Only meaningful for FTW_D: Don't walk through the
- subtree, instead just continue with its next
- sibling. */
- # define FTW_SKIP_SUBTREE FTW_SKIP_SUBTREE
- FTW_SKIP_SIBLINGS = 3,/* Continue with FTW_DP callback for current directory
- (if FTW_DEPTH) and then its siblings. */
- # define FTW_SKIP_SIBLINGS FTW_SKIP_SIBLINGS
- };
- #endif
- /* Structure used for fourth argument to callback function for `nftw'. */
- struct FTW
- {
- int base;
- int level;
- };
- #endif /* extended X/Open */
- /* Convenient types for callback functions. */
- typedef int (*__ftw_func_t) (const char *__filename,
- const struct stat *__status, int __flag);
- #ifdef __USE_LARGEFILE64
- typedef int (*__ftw64_func_t) (const char *__filename,
- const struct stat64 *__status, int __flag);
- #endif
- #ifdef __USE_XOPEN_EXTENDED
- typedef int (*__nftw_func_t) (const char *__filename,
- const struct stat *__status, int __flag,
- struct FTW *__info);
- # ifdef __USE_LARGEFILE64
- typedef int (*__nftw64_func_t) (const char *__filename,
- const struct stat64 *__status,
- int __flag, struct FTW *__info);
- # endif
- #endif
- #ifdef __UCLIBC_HAS_FTW__
- /* Call a function on every element in a directory tree.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- # ifndef __USE_FILE_OFFSET64
- extern int ftw (const char *__dir, __ftw_func_t __func, int __descriptors)
- __nonnull ((1, 2));
- # else
- # ifdef __REDIRECT
- extern int __REDIRECT (ftw, (const char *__dir, __ftw_func_t __func,
- int __descriptors), ftw64) __nonnull ((1, 2));
- # else
- # define ftw ftw64
- # endif
- # endif
- # ifdef __USE_LARGEFILE64
- extern int ftw64 (const char *__dir, __ftw64_func_t __func,
- int __descriptors) __nonnull ((1, 2));
- # endif
- #endif
- #if defined __UCLIBC_HAS_NFTW__ && defined __USE_XOPEN_EXTENDED
- /* Call a function on every element in a directory tree. FLAG allows
- to specify the behaviour more detailed.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- # ifndef __USE_FILE_OFFSET64
- extern int nftw (const char *__dir, __nftw_func_t __func, int __descriptors,
- int __flag) __nonnull ((1, 2));
- # else
- # ifdef __REDIRECT
- extern int __REDIRECT (nftw, (const char *__dir, __nftw_func_t __func,
- int __descriptors, int __flag), nftw64)
- __nonnull ((1, 2));
- # else
- # define nftw nftw64
- # endif
- # endif
- # ifdef __USE_LARGEFILE64
- extern int nftw64 (const char *__dir, __nftw64_func_t __func,
- int __descriptors, int __flag) __nonnull ((1, 2));
- # endif
- #endif
- __END_DECLS
- #endif /* ftw.h */
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