mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
dd535f4f19
It was raised on libc-help [1] that some Linux kernel interfaces expect
the libc to define __USE_TIME_BITS64 to indicate the time_t size for the
kABI. Different than defined by the initial y2038 design document [2],
the __USE_TIME_BITS64 is only defined for ABIs that support more than
one time_t size (by defining the _TIME_BITS for each module).
The 64 bit time_t redirects are now enabled using a different internal
define (__USE_TIME64_REDIRECTS). There is no expected change in semantic
or code generation.
Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, and
arm-linux-gnueabi
[1] https://sourceware.org/pipermail/libc-help/2024-January/006557.html
[2] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit a4ed0471d7)
249 lines
9.4 KiB
C
249 lines
9.4 KiB
C
/* File tree traversal functions declarations.
|
|
Copyright (C) 1994-2024 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
/*
|
|
* Copyright (c) 1989, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)fts.h 8.3 (Berkeley) 8/14/94
|
|
*/
|
|
|
|
#ifndef _FTS_H
|
|
#define _FTS_H 1
|
|
|
|
#include <features.h>
|
|
#include <sys/types.h>
|
|
|
|
|
|
typedef struct {
|
|
struct _ftsent *fts_cur; /* current node */
|
|
struct _ftsent *fts_child; /* linked list of children */
|
|
struct _ftsent **fts_array; /* sort array */
|
|
dev_t fts_dev; /* starting device # */
|
|
char *fts_path; /* path for this descent */
|
|
int fts_rfd; /* fd for root */
|
|
int fts_pathlen; /* sizeof(path) */
|
|
int fts_nitems; /* elements in the sort array */
|
|
int (*fts_compar) (const void *, const void *); /* compare fn */
|
|
|
|
#define FTS_COMFOLLOW 0x0001 /* follow command line symlinks */
|
|
#define FTS_LOGICAL 0x0002 /* logical walk */
|
|
#define FTS_NOCHDIR 0x0004 /* don't change directories */
|
|
#define FTS_NOSTAT 0x0008 /* don't get stat info */
|
|
#define FTS_PHYSICAL 0x0010 /* physical walk */
|
|
#define FTS_SEEDOT 0x0020 /* return dot and dot-dot */
|
|
#define FTS_XDEV 0x0040 /* don't cross devices */
|
|
#define FTS_WHITEOUT 0x0080 /* return whiteout information */
|
|
#define FTS_OPTIONMASK 0x00ff /* valid user option mask */
|
|
|
|
#define FTS_NAMEONLY 0x0100 /* (private) child names only */
|
|
#define FTS_STOP 0x0200 /* (private) unrecoverable error */
|
|
int fts_options; /* fts_open options, global flags */
|
|
} FTS;
|
|
|
|
#ifdef __USE_LARGEFILE64
|
|
typedef struct {
|
|
struct _ftsent64 *fts_cur; /* current node */
|
|
struct _ftsent64 *fts_child; /* linked list of children */
|
|
struct _ftsent64 **fts_array; /* sort array */
|
|
dev_t fts_dev; /* starting device # */
|
|
char *fts_path; /* path for this descent */
|
|
int fts_rfd; /* fd for root */
|
|
int fts_pathlen; /* sizeof(path) */
|
|
int fts_nitems; /* elements in the sort array */
|
|
int (*fts_compar) (const void *, const void *); /* compare fn */
|
|
int fts_options; /* fts_open options, global flags */
|
|
} FTS64;
|
|
#endif
|
|
|
|
typedef struct _ftsent {
|
|
struct _ftsent *fts_cycle; /* cycle node */
|
|
struct _ftsent *fts_parent; /* parent directory */
|
|
struct _ftsent *fts_link; /* next file in directory */
|
|
long fts_number; /* local numeric value */
|
|
void *fts_pointer; /* local address value */
|
|
char *fts_accpath; /* access path */
|
|
char *fts_path; /* root path */
|
|
int fts_errno; /* errno for this node */
|
|
int fts_symfd; /* fd for symlink */
|
|
unsigned short fts_pathlen; /* strlen(fts_path) */
|
|
unsigned short fts_namelen; /* strlen(fts_name) */
|
|
|
|
ino_t fts_ino; /* inode */
|
|
dev_t fts_dev; /* device */
|
|
nlink_t fts_nlink; /* link count */
|
|
|
|
#define FTS_ROOTPARENTLEVEL -1
|
|
#define FTS_ROOTLEVEL 0
|
|
short fts_level; /* depth (-1 to N) */
|
|
|
|
#define FTS_D 1 /* preorder directory */
|
|
#define FTS_DC 2 /* directory that causes cycles */
|
|
#define FTS_DEFAULT 3 /* none of the above */
|
|
#define FTS_DNR 4 /* unreadable directory */
|
|
#define FTS_DOT 5 /* dot or dot-dot */
|
|
#define FTS_DP 6 /* postorder directory */
|
|
#define FTS_ERR 7 /* error; errno is set */
|
|
#define FTS_F 8 /* regular file */
|
|
#define FTS_INIT 9 /* initialized only */
|
|
#define FTS_NS 10 /* stat(2) failed */
|
|
#define FTS_NSOK 11 /* no stat(2) requested */
|
|
#define FTS_SL 12 /* symbolic link */
|
|
#define FTS_SLNONE 13 /* symbolic link without target */
|
|
#define FTS_W 14 /* whiteout object */
|
|
unsigned short fts_info; /* user flags for FTSENT structure */
|
|
|
|
#define FTS_DONTCHDIR 0x01 /* don't chdir .. to the parent */
|
|
#define FTS_SYMFOLLOW 0x02 /* followed a symlink to get here */
|
|
unsigned short fts_flags; /* private flags for FTSENT structure */
|
|
|
|
#define FTS_AGAIN 1 /* read node again */
|
|
#define FTS_FOLLOW 2 /* follow symbolic link */
|
|
#define FTS_NOINSTR 3 /* no instructions */
|
|
#define FTS_SKIP 4 /* discard node */
|
|
unsigned short fts_instr; /* fts_set() instructions */
|
|
|
|
struct stat *fts_statp; /* stat(2) information */
|
|
char fts_name[1]; /* file name */
|
|
} FTSENT;
|
|
|
|
#ifdef __USE_LARGEFILE64
|
|
typedef struct _ftsent64 {
|
|
struct _ftsent64 *fts_cycle; /* cycle node */
|
|
struct _ftsent64 *fts_parent; /* parent directory */
|
|
struct _ftsent64 *fts_link; /* next file in directory */
|
|
long fts_number; /* local numeric value */
|
|
void *fts_pointer; /* local address value */
|
|
char *fts_accpath; /* access path */
|
|
char *fts_path; /* root path */
|
|
int fts_errno; /* errno for this node */
|
|
int fts_symfd; /* fd for symlink */
|
|
unsigned short fts_pathlen; /* strlen(fts_path) */
|
|
unsigned short fts_namelen; /* strlen(fts_name) */
|
|
|
|
ino64_t fts_ino; /* inode */
|
|
dev_t fts_dev; /* device */
|
|
nlink_t fts_nlink; /* link count */
|
|
|
|
short fts_level; /* depth (-1 to N) */
|
|
|
|
unsigned short fts_info; /* user flags for FTSENT structure */
|
|
|
|
unsigned short fts_flags; /* private flags for FTSENT structure */
|
|
|
|
unsigned short fts_instr; /* fts_set() instructions */
|
|
|
|
struct stat64 *fts_statp; /* stat(2) information */
|
|
char fts_name[1]; /* file name */
|
|
} FTSENT64;
|
|
#endif
|
|
|
|
__BEGIN_DECLS
|
|
#ifndef __USE_FILE_OFFSET64
|
|
FTSENT *fts_children (FTS *, int);
|
|
int fts_close (FTS *);
|
|
FTS *fts_open (char * const *, int,
|
|
int (*)(const FTSENT **, const FTSENT **));
|
|
FTSENT *fts_read (FTS *);
|
|
int fts_set (FTS *, FTSENT *, int) __THROW;
|
|
#else
|
|
# ifdef __REDIRECT
|
|
# ifndef __USE_TIME64_REDIRECTS
|
|
FTSENT *__REDIRECT (fts_children, (FTS *, int), fts64_children);
|
|
int __REDIRECT (fts_close, (FTS *), fts64_close);
|
|
FTS *__REDIRECT (fts_open, (char * const *, int,
|
|
int (*)(const FTSENT **, const FTSENT **)),
|
|
fts64_open);
|
|
FTSENT *__REDIRECT (fts_read, (FTS *), fts64_read);
|
|
int __REDIRECT_NTH (fts_set, (FTS *, FTSENT *, int), fts64_set);
|
|
# else
|
|
FTSENT *__REDIRECT (fts_children, (FTS *, int), __fts64_children_time64);
|
|
int __REDIRECT (fts_close, (FTS *), __fts64_close_time64);
|
|
FTS *__REDIRECT (fts_open, (char * const *, int,
|
|
int (*)(const FTSENT **, const FTSENT **)),
|
|
__fts64_open_time64);
|
|
FTSENT *__REDIRECT (fts_read, (FTS *), __fts64_read_time64);
|
|
int __REDIRECT_NTH (fts_set, (FTS *, FTSENT *, int),
|
|
__fts64_set_time64);
|
|
# endif
|
|
# else
|
|
# ifndef __USE_TIME64_REDIRECTS
|
|
# define fts_children fts64_children
|
|
# define fts_close fts64_close
|
|
# define fts_open fts64_open
|
|
# define fts_read fts64_read
|
|
# define fts_set fts64_set
|
|
# else
|
|
# endif
|
|
# endif
|
|
#endif
|
|
#ifdef __USE_LARGEFILE64
|
|
# ifndef __USE_TIME64_REDIRECTS
|
|
FTSENT64 *fts64_children (FTS64 *, int);
|
|
int fts64_close (FTS64 *);
|
|
FTS64 *fts64_open (char * const *, int,
|
|
int (*)(const FTSENT64 **, const FTSENT64 **));
|
|
FTSENT64 *fts64_read (FTS64 *);
|
|
int fts64_set (FTS64 *, FTSENT64 *, int) __THROW;
|
|
# else
|
|
# ifdef __REDIRECT
|
|
FTSENT *__REDIRECT (fts64_children, (FTS64 *, int), __fts64_children_time64);
|
|
int __REDIRECT (fts64_close, (FTS64 *), __fts64_close_time64);
|
|
FTS *__REDIRECT (fts64_open, (char * const *, int,
|
|
int (*)(const FTSENT64 **, const FTSENT64 **)),
|
|
__fts64_open_time64);
|
|
FTSENT *__REDIRECT (fts64_read, (FTS64 *), __fts64_read_time64);
|
|
int __REDIRECT_NTH (fts64_set, (FTS64 *, FTSENT64 *, int),
|
|
__fts64_set_time64);
|
|
# else
|
|
# define fts_children __fts64_children_time64
|
|
# define fts_close __fts64_close_time64
|
|
# define fts_open __fts64_open_time64
|
|
# define fts_read __fts64_read_time64
|
|
# define fts_set __fts64_set_time64
|
|
# endif
|
|
# endif
|
|
#endif
|
|
__END_DECLS
|
|
|
|
#endif /* fts.h */
|