mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-12-26 15:36:14 +01:00
6517bbfbc3
If these struct members aren't available, we can be more like an abstraction layer by falling back to yielding 0. Signed-off-by: Simon McVittie <smcv@collabora.com>
383 lines
16 KiB
C
383 lines
16 KiB
C
/* GIO - GLib Input, Output and Streaming Library
|
||
*
|
||
* Copyright (C) 2006-2007 Red Hat, Inc.
|
||
*
|
||
* This 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.
|
||
*
|
||
* This 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 this library; if not, see <http://www.gnu.org/licenses/>.
|
||
*
|
||
* Author: Alexander Larsson <alexl@redhat.com>
|
||
*/
|
||
|
||
#ifndef __G_LOCAL_FILE_INFO_H__
|
||
#define __G_LOCAL_FILE_INFO_H__
|
||
|
||
/* Needed for statx() */
|
||
#ifndef _GNU_SOURCE
|
||
#define _GNU_SOURCE
|
||
#endif
|
||
|
||
#include <fcntl.h>
|
||
#include <gio/gfileinfo.h>
|
||
#include <gio/gfile.h>
|
||
#include <glib/glib-private.h>
|
||
#include <glib/gstdio.h>
|
||
#include <glib/gstdioprivate.h>
|
||
#include <sys/stat.h>
|
||
#include <sys/types.h>
|
||
|
||
#ifdef HAVE_STATX
|
||
#include <sys/sysmacros.h>
|
||
#endif
|
||
|
||
G_BEGIN_DECLS
|
||
|
||
typedef struct
|
||
{
|
||
gboolean writable;
|
||
gboolean is_sticky;
|
||
gboolean has_trash_dir;
|
||
/* owner should be uid_t but it breaks compliance with MS-Windows */
|
||
int owner;
|
||
dev_t device;
|
||
ino_t inode;
|
||
gpointer extra_data;
|
||
GDestroyNotify free_extra_data;
|
||
} GLocalParentFileInfo;
|
||
|
||
#ifdef HAVE_STATX
|
||
#define GLocalFileStat struct statx
|
||
|
||
typedef enum
|
||
{
|
||
G_LOCAL_FILE_STAT_FIELD_TYPE = STATX_TYPE,
|
||
G_LOCAL_FILE_STAT_FIELD_MODE = STATX_MODE,
|
||
G_LOCAL_FILE_STAT_FIELD_NLINK = STATX_NLINK,
|
||
G_LOCAL_FILE_STAT_FIELD_UID = STATX_UID,
|
||
G_LOCAL_FILE_STAT_FIELD_GID = STATX_GID,
|
||
G_LOCAL_FILE_STAT_FIELD_ATIME = STATX_ATIME,
|
||
G_LOCAL_FILE_STAT_FIELD_MTIME = STATX_MTIME,
|
||
G_LOCAL_FILE_STAT_FIELD_CTIME = STATX_CTIME,
|
||
G_LOCAL_FILE_STAT_FIELD_INO = STATX_INO,
|
||
G_LOCAL_FILE_STAT_FIELD_SIZE = STATX_SIZE,
|
||
G_LOCAL_FILE_STAT_FIELD_BLOCKS = STATX_BLOCKS,
|
||
G_LOCAL_FILE_STAT_FIELD_BTIME = STATX_BTIME,
|
||
} GLocalFileStatField;
|
||
|
||
#define G_LOCAL_FILE_STAT_FIELD_BASIC_STATS STATX_BASIC_STATS
|
||
#define G_LOCAL_FILE_STAT_FIELD_ALL STATX_ALL
|
||
|
||
static inline int
|
||
g_local_file_statx (int dirfd,
|
||
const char *pathname,
|
||
int flags,
|
||
GLocalFileStatField mask,
|
||
GLocalFileStatField mask_required,
|
||
GLocalFileStat *stat_buf)
|
||
{
|
||
int retval;
|
||
|
||
/* Allow the caller to set mask_required==G_LOCAL_FILE_STAT_FIELD_ALL as a
|
||
* shortcut for saying it’s equal to @mask. */
|
||
mask_required &= mask;
|
||
|
||
retval = statx (dirfd, pathname, flags, mask, stat_buf);
|
||
if (retval == 0 && (stat_buf->stx_mask & mask_required) != mask_required)
|
||
{
|
||
/* Not all required fields could be returned. */
|
||
errno = ERANGE;
|
||
return -1;
|
||
}
|
||
|
||
return retval;
|
||
}
|
||
|
||
static inline int
|
||
g_local_file_fstat (int fd,
|
||
GLocalFileStatField mask,
|
||
GLocalFileStatField mask_required,
|
||
GLocalFileStat *stat_buf)
|
||
{
|
||
return g_local_file_statx (fd, "", AT_EMPTY_PATH, mask, mask_required, stat_buf);
|
||
}
|
||
|
||
static inline int
|
||
g_local_file_fstatat (int fd,
|
||
const char *path,
|
||
int flags,
|
||
GLocalFileStatField mask,
|
||
GLocalFileStatField mask_required,
|
||
GLocalFileStat *stat_buf)
|
||
{
|
||
return g_local_file_statx (fd, path, flags, mask, mask_required, stat_buf);
|
||
}
|
||
|
||
static inline int
|
||
g_local_file_lstat (const char *path,
|
||
GLocalFileStatField mask,
|
||
GLocalFileStatField mask_required,
|
||
GLocalFileStat *stat_buf)
|
||
{
|
||
return g_local_file_statx (AT_FDCWD, path,
|
||
AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW | AT_STATX_SYNC_AS_STAT,
|
||
mask, mask_required, stat_buf);
|
||
}
|
||
|
||
static inline int
|
||
g_local_file_stat (const char *path,
|
||
GLocalFileStatField mask,
|
||
GLocalFileStatField mask_required,
|
||
GLocalFileStat *stat_buf)
|
||
{
|
||
return g_local_file_statx (AT_FDCWD, path,
|
||
AT_NO_AUTOMOUNT | AT_STATX_SYNC_AS_STAT,
|
||
mask, mask_required, stat_buf);
|
||
}
|
||
|
||
inline static gboolean _g_stat_has_field (const GLocalFileStat *buf, GLocalFileStatField field) { return buf->stx_mask & field; }
|
||
|
||
inline static guint16 _g_stat_mode (const GLocalFileStat *buf) { return buf->stx_mode; }
|
||
inline static guint32 _g_stat_nlink (const GLocalFileStat *buf) { return buf->stx_nlink; }
|
||
inline static dev_t _g_stat_dev (const GLocalFileStat *buf) { return makedev (buf->stx_dev_major, buf->stx_dev_minor); }
|
||
inline static guint64 _g_stat_ino (const GLocalFileStat *buf) { return buf->stx_ino; }
|
||
inline static guint64 _g_stat_size (const GLocalFileStat *buf) { return buf->stx_size; }
|
||
|
||
inline static guint32 _g_stat_uid (const GLocalFileStat *buf) { return buf->stx_uid; }
|
||
inline static guint32 _g_stat_gid (const GLocalFileStat *buf) { return buf->stx_gid; }
|
||
inline static dev_t _g_stat_rdev (const GLocalFileStat *buf) { return makedev (buf->stx_rdev_major, buf->stx_rdev_minor); }
|
||
inline static guint32 _g_stat_blksize (const GLocalFileStat *buf) { return buf->stx_blksize; }
|
||
|
||
inline static guint64 _g_stat_blocks (const GLocalFileStat *buf) { return buf->stx_blocks; }
|
||
|
||
inline static gint64 _g_stat_atime (const GLocalFileStat *buf) { return buf->stx_atime.tv_sec; }
|
||
inline static gint64 _g_stat_ctime (const GLocalFileStat *buf) { return buf->stx_ctime.tv_sec; }
|
||
inline static gint64 _g_stat_mtime (const GLocalFileStat *buf) { return buf->stx_mtime.tv_sec; }
|
||
inline static guint32 _g_stat_atim_nsec (const GLocalFileStat *buf) { return buf->stx_atime.tv_nsec; }
|
||
inline static guint32 _g_stat_ctim_nsec (const GLocalFileStat *buf) { return buf->stx_ctime.tv_nsec; }
|
||
inline static guint32 _g_stat_mtim_nsec (const GLocalFileStat *buf) { return buf->stx_mtime.tv_nsec; }
|
||
|
||
#else /* if !HAVE_STATX */
|
||
|
||
#ifdef G_OS_WIN32
|
||
/* We want 64-bit file size, file ID and symlink support */
|
||
#define GLocalFileStat GWin32PrivateStat
|
||
#else
|
||
#define GLocalFileStat struct stat
|
||
#endif
|
||
|
||
/* If the system doesn’t have statx() support, emulate it using traditional
|
||
* stat(). It supports fields %G_LOCAL_FILE_STAT_FIELD_BASIC_STATS only, and
|
||
* always returns all of them. */
|
||
typedef enum
|
||
{
|
||
G_LOCAL_FILE_STAT_FIELD_TYPE = (1 << 0),
|
||
G_LOCAL_FILE_STAT_FIELD_MODE = (1 << 1),
|
||
G_LOCAL_FILE_STAT_FIELD_NLINK = (1 << 2),
|
||
G_LOCAL_FILE_STAT_FIELD_UID = (1 << 3),
|
||
G_LOCAL_FILE_STAT_FIELD_GID = (1 << 4),
|
||
G_LOCAL_FILE_STAT_FIELD_ATIME = (1 << 5),
|
||
G_LOCAL_FILE_STAT_FIELD_MTIME = (1 << 6),
|
||
G_LOCAL_FILE_STAT_FIELD_CTIME = (1 << 7),
|
||
G_LOCAL_FILE_STAT_FIELD_INO = (1 << 8),
|
||
G_LOCAL_FILE_STAT_FIELD_SIZE = (1 << 9),
|
||
G_LOCAL_FILE_STAT_FIELD_BLOCKS = (1 << 10),
|
||
G_LOCAL_FILE_STAT_FIELD_BTIME = (1 << 11),
|
||
} GLocalFileStatField;
|
||
|
||
#define G_LOCAL_FILE_STAT_FIELD_BASIC_STATS \
|
||
(G_LOCAL_FILE_STAT_FIELD_TYPE | G_LOCAL_FILE_STAT_FIELD_MODE | \
|
||
G_LOCAL_FILE_STAT_FIELD_NLINK | G_LOCAL_FILE_STAT_FIELD_UID | \
|
||
G_LOCAL_FILE_STAT_FIELD_GID | G_LOCAL_FILE_STAT_FIELD_ATIME | \
|
||
G_LOCAL_FILE_STAT_FIELD_MTIME | G_LOCAL_FILE_STAT_FIELD_CTIME | \
|
||
G_LOCAL_FILE_STAT_FIELD_INO | G_LOCAL_FILE_STAT_FIELD_SIZE | \
|
||
G_LOCAL_FILE_STAT_FIELD_BLOCKS)
|
||
#define G_LOCAL_FILE_STAT_FIELD_ALL (G_LOCAL_FILE_STAT_FIELD_BASIC_STATS | G_LOCAL_FILE_STAT_FIELD_BTIME)
|
||
|
||
static inline int
|
||
g_local_file_fstat (int fd,
|
||
GLocalFileStatField mask,
|
||
GLocalFileStatField mask_required,
|
||
GLocalFileStat *stat_buf)
|
||
{
|
||
if ((G_LOCAL_FILE_STAT_FIELD_BASIC_STATS & (mask_required & mask)) != (mask_required & mask))
|
||
{
|
||
/* Only G_LOCAL_FILE_STAT_FIELD_BASIC_STATS are supported. */
|
||
errno = ERANGE;
|
||
return -1;
|
||
}
|
||
|
||
#ifdef G_OS_WIN32
|
||
return GLIB_PRIVATE_CALL (g_win32_fstat) (fd, stat_buf);
|
||
#else
|
||
return fstat (fd, stat_buf);
|
||
#endif
|
||
}
|
||
|
||
static inline int
|
||
g_local_file_fstatat (int fd,
|
||
const char *path,
|
||
int flags,
|
||
GLocalFileStatField mask,
|
||
GLocalFileStatField mask_required,
|
||
GLocalFileStat *stat_buf)
|
||
{
|
||
if ((G_LOCAL_FILE_STAT_FIELD_BASIC_STATS & (mask_required & mask)) != (mask_required & mask))
|
||
{
|
||
/* Only G_LOCAL_FILE_STAT_FIELD_BASIC_STATS are supported. */
|
||
errno = ERANGE;
|
||
return -1;
|
||
}
|
||
|
||
#if !defined(G_OS_WIN32) && defined(AT_FDCWD)
|
||
return fstatat (fd, path, stat_buf, flags);
|
||
#else
|
||
/* Currently not supported on Windows or macOS < 10.10 */
|
||
errno = ENOSYS;
|
||
return -1;
|
||
#endif
|
||
}
|
||
|
||
static inline int
|
||
g_local_file_lstat (const char *path,
|
||
GLocalFileStatField mask,
|
||
GLocalFileStatField mask_required,
|
||
GLocalFileStat *stat_buf)
|
||
{
|
||
if ((G_LOCAL_FILE_STAT_FIELD_BASIC_STATS & (mask_required & mask)) != (mask_required & mask))
|
||
{
|
||
/* Only G_LOCAL_FILE_STAT_FIELD_BASIC_STATS are supported. */
|
||
errno = ERANGE;
|
||
return -1;
|
||
}
|
||
|
||
#ifdef G_OS_WIN32
|
||
return GLIB_PRIVATE_CALL (g_win32_lstat_utf8) (path, stat_buf);
|
||
#else
|
||
return g_lstat (path, stat_buf);
|
||
#endif
|
||
}
|
||
|
||
static inline int
|
||
g_local_file_stat (const char *path,
|
||
GLocalFileStatField mask,
|
||
GLocalFileStatField mask_required,
|
||
GLocalFileStat *stat_buf)
|
||
{
|
||
if ((G_LOCAL_FILE_STAT_FIELD_BASIC_STATS & (mask_required & mask)) != (mask_required & mask))
|
||
{
|
||
/* Only G_LOCAL_FILE_STAT_FIELD_BASIC_STATS are supported. */
|
||
errno = ERANGE;
|
||
return -1;
|
||
}
|
||
|
||
#ifdef G_OS_WIN32
|
||
return GLIB_PRIVATE_CALL (g_win32_stat_utf8) (path, stat_buf);
|
||
#else
|
||
return stat (path, stat_buf);
|
||
#endif
|
||
}
|
||
|
||
inline static gboolean _g_stat_has_field (const GLocalFileStat *buf, GLocalFileStatField field) { return (G_LOCAL_FILE_STAT_FIELD_BASIC_STATS & field) == field; }
|
||
|
||
#ifndef G_OS_WIN32
|
||
inline static mode_t _g_stat_mode (const GLocalFileStat *buf) { return buf->st_mode; }
|
||
inline static nlink_t _g_stat_nlink (const GLocalFileStat *buf) { return buf->st_nlink; }
|
||
#else
|
||
inline static guint16 _g_stat_mode (const GLocalFileStat *buf) { return buf->st_mode; }
|
||
inline static guint32 _g_stat_nlink (const GLocalFileStat *buf) { return buf->st_nlink; }
|
||
#endif
|
||
inline static dev_t _g_stat_dev (const GLocalFileStat *buf) { return buf->st_dev; }
|
||
inline static ino_t _g_stat_ino (const GLocalFileStat *buf) { return buf->st_ino; }
|
||
inline static goffset _g_stat_size (const GLocalFileStat *buf) { return buf->st_size; }
|
||
|
||
#ifndef G_OS_WIN32
|
||
inline static uid_t _g_stat_uid (const GLocalFileStat *buf) { return buf->st_uid; }
|
||
inline static gid_t _g_stat_gid (const GLocalFileStat *buf) { return buf->st_gid; }
|
||
inline static dev_t _g_stat_rdev (const GLocalFileStat *buf) { return buf->st_rdev; }
|
||
inline static blksize_t _g_stat_blksize (const GLocalFileStat *buf) { return buf->st_blksize; }
|
||
#else
|
||
inline static guint16 _g_stat_uid (const GLocalFileStat *buf) { return buf->st_uid; }
|
||
inline static guint16 _g_stat_gid (const GLocalFileStat *buf) { return buf->st_gid; }
|
||
#endif
|
||
|
||
#ifdef HAVE_STRUCT_STAT_ST_BLOCKS
|
||
inline static blkcnt_t _g_stat_blocks (const GLocalFileStat *buf) { return buf->st_blocks; }
|
||
#endif
|
||
|
||
#ifndef G_OS_WIN32
|
||
inline static time_t _g_stat_atime (const GLocalFileStat *buf) { return buf->st_atime; }
|
||
inline static time_t _g_stat_ctime (const GLocalFileStat *buf) { return buf->st_ctime; }
|
||
inline static time_t _g_stat_mtime (const GLocalFileStat *buf) { return buf->st_mtime; }
|
||
#else
|
||
inline static time_t _g_stat_atime (const GLocalFileStat *buf) { return buf->st_atim.tv_sec; }
|
||
inline static time_t _g_stat_ctime (const GLocalFileStat *buf) { return buf->st_ctim.tv_sec; }
|
||
inline static time_t _g_stat_mtime (const GLocalFileStat *buf) { return buf->st_mtim.tv_sec; }
|
||
#endif
|
||
#if defined(HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC) || defined(G_OS_WIN32)
|
||
inline static guint32 _g_stat_atim_nsec (const GLocalFileStat *buf) { return buf->st_atim.tv_nsec; }
|
||
inline static guint32 _g_stat_ctim_nsec (const GLocalFileStat *buf) { return buf->st_ctim.tv_nsec; }
|
||
inline static guint32 _g_stat_mtim_nsec (const GLocalFileStat *buf) { return buf->st_mtim.tv_nsec; }
|
||
#else
|
||
inline static guint32 _g_stat_atim_nsec (const GLocalFileStat *buf) { return 0; }
|
||
inline static guint32 _g_stat_ctim_nsec (const GLocalFileStat *buf) { return 0; }
|
||
inline static guint32 _g_stat_mtim_nsec (const GLocalFileStat *buf) { return 0; }
|
||
#endif
|
||
|
||
#endif /* !HAVE_STATX */
|
||
|
||
#define G_LOCAL_FILE_INFO_NOSTAT_ATTRIBUTES \
|
||
G_FILE_ATTRIBUTE_STANDARD_NAME "," \
|
||
G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME "," \
|
||
G_FILE_ATTRIBUTE_STANDARD_EDIT_NAME "," \
|
||
G_FILE_ATTRIBUTE_STANDARD_COPY_NAME
|
||
|
||
gboolean _g_local_file_has_trash_dir (const char *dirname,
|
||
dev_t dir_dev);
|
||
#ifdef G_OS_UNIX
|
||
gboolean _g_local_file_is_lost_found_dir (const char *path,
|
||
dev_t path_dev);
|
||
#endif
|
||
void _g_local_file_info_get_parent_info (const char *dir,
|
||
GFileAttributeMatcher *attribute_matcher,
|
||
GLocalParentFileInfo *parent_info);
|
||
void _g_local_file_info_free_parent_info (GLocalParentFileInfo *parent_info);
|
||
void _g_local_file_info_get_nostat (GFileInfo *info,
|
||
const char *basename,
|
||
const char *path,
|
||
GFileAttributeMatcher *attribute_matcher);
|
||
GFileInfo *_g_local_file_info_get (const char *basename,
|
||
const char *path,
|
||
GFileAttributeMatcher *attribute_matcher,
|
||
GFileQueryInfoFlags flags,
|
||
GLocalParentFileInfo *parent_info,
|
||
GError **error);
|
||
GFileInfo *_g_local_file_info_get_from_fd (int fd,
|
||
const char *attributes,
|
||
GError **error);
|
||
char * _g_local_file_info_create_etag (GLocalFileStat *statbuf);
|
||
gboolean _g_local_file_info_set_attribute (char *filename,
|
||
const char *attribute,
|
||
GFileAttributeType type,
|
||
gpointer value_p,
|
||
GFileQueryInfoFlags flags,
|
||
GCancellable *cancellable,
|
||
GError **error);
|
||
gboolean _g_local_file_info_set_attributes (char *filename,
|
||
GFileInfo *info,
|
||
GFileQueryInfoFlags flags,
|
||
GCancellable *cancellable,
|
||
GError **error);
|
||
|
||
G_END_DECLS
|
||
|
||
#endif /* __G_FILE_LOCAL_FILE_INFO_H__ */
|