glib/gio/gioenums.h
Alexander Larsson 0fd66d7e22 Bug 560564 – Replacing a symlink with its linked file truncates the
2009-02-18  Alexander Larsson  <alexl@redhat.com>

	Bug 560564 – Replacing a symlink with its linked file truncates the original file

        * gioenums.h:
	Add G_FILE_CREATE_REPLACE_DESTINATION

        * glocalfileoutputstream.c:
        (handle_overwrite_open):
        (_g_local_file_output_stream_replace):
	Handle G_FILE_CREATE_REPLACE_DESTINATION when overwriting files.

        * gfile.c:
        (file_copy_fallback):
	Pass G_FILE_CREATE_REPLACE_DESTINATION to g_file_replace when copying
	with overwrite.


svn path=/trunk/; revision=7880
2009-02-18 14:49:25 +00:00

483 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 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, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Alexander Larsson <alexl@redhat.com>
*/
#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
#error "Only <gio/gio.h> can be included directly."
#endif
#ifndef __GIO_ENUMS_H__
#define __GIO_ENUMS_H__
#include <glib-object.h>
G_BEGIN_DECLS
/**
* GAppInfoCreateFlags:
* @G_APP_INFO_CREATE_NONE: No flags.
* @G_APP_INFO_CREATE_NEEDS_TERMINAL: Application opens in a terminal window.
* @G_APP_INFO_CREATE_SUPPORTS_URIS: Application supports URI arguments.
*
* Flags used when creating a #GAppInfo.
*/
typedef enum {
G_APP_INFO_CREATE_NONE = 0, /*< nick=none >*/
G_APP_INFO_CREATE_NEEDS_TERMINAL = (1 << 0), /*< nick=needs-terminal >*/
G_APP_INFO_CREATE_SUPPORTS_URIS = (1 << 1) /*< nick=supports-uris >*/
} GAppInfoCreateFlags;
/**
* GDataStreamByteOrder:
* @G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN: Selects Big Endian byte order.
* @G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN: Selects Little Endian byte order.
* @G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN: Selects endianness based on host machine's architecture.
*
* #GDataStreamByteOrder is used to ensure proper endianness of streaming data sources
* across various machine architectures.
*
**/
typedef enum {
G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN,
G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN,
G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN
} GDataStreamByteOrder;
/**
* GDataStreamNewlineType:
* @G_DATA_STREAM_NEWLINE_TYPE_LF: Selects "LF" line endings, common on most modern UNIX platforms.
* @G_DATA_STREAM_NEWLINE_TYPE_CR: Selects "CR" line endings.
* @G_DATA_STREAM_NEWLINE_TYPE_CR_LF: Selects "CR, LF" line ending, common on Microsoft Windows.
* @G_DATA_STREAM_NEWLINE_TYPE_ANY: Automatically try to handle any line ending type.
*
* #GDataStreamNewlineType is used when checking for or setting the line endings for a given file.
**/
typedef enum {
G_DATA_STREAM_NEWLINE_TYPE_LF,
G_DATA_STREAM_NEWLINE_TYPE_CR,
G_DATA_STREAM_NEWLINE_TYPE_CR_LF,
G_DATA_STREAM_NEWLINE_TYPE_ANY
} GDataStreamNewlineType;
/**
* GFileAttributeType:
* @G_FILE_ATTRIBUTE_TYPE_INVALID: indicates an invalid or uninitalized type.
* @G_FILE_ATTRIBUTE_TYPE_STRING: a null terminated UTF8 string.
* @G_FILE_ATTRIBUTE_TYPE_BYTE_STRING: a zero terminated string of non-zero bytes.
* @G_FILE_ATTRIBUTE_TYPE_BOOLEAN: a boolean value.
* @G_FILE_ATTRIBUTE_TYPE_UINT32: an unsigned 4-byte/32-bit integer.
* @G_FILE_ATTRIBUTE_TYPE_INT32: a signed 4-byte/32-bit integer.
* @G_FILE_ATTRIBUTE_TYPE_UINT64: an unsigned 8-byte/64-bit integer.
* @G_FILE_ATTRIBUTE_TYPE_INT64: a signed 8-byte/64-bit integer.
* @G_FILE_ATTRIBUTE_TYPE_OBJECT: a #GObject.
*
* The data types for file attributes.
**/
typedef enum {
G_FILE_ATTRIBUTE_TYPE_INVALID = 0,
G_FILE_ATTRIBUTE_TYPE_STRING,
G_FILE_ATTRIBUTE_TYPE_BYTE_STRING, /* zero terminated string of non-zero bytes */
G_FILE_ATTRIBUTE_TYPE_BOOLEAN,
G_FILE_ATTRIBUTE_TYPE_UINT32,
G_FILE_ATTRIBUTE_TYPE_INT32,
G_FILE_ATTRIBUTE_TYPE_UINT64,
G_FILE_ATTRIBUTE_TYPE_INT64,
G_FILE_ATTRIBUTE_TYPE_OBJECT
} GFileAttributeType;
/**
* GFileAttributeInfoFlags:
* @G_FILE_ATTRIBUTE_INFO_NONE: no flags set.
* @G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE: copy the attribute values when the file is copied.
* @G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED: copy the attribute values when the file is moved.
*
* Flags specifying the behaviour of an attribute.
**/
typedef enum {
G_FILE_ATTRIBUTE_INFO_NONE = 0,
G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE = (1 << 0),
G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED = (1 << 1)
} GFileAttributeInfoFlags;
/**
* GFileAttributeStatus:
* @G_FILE_ATTRIBUTE_STATUS_UNSET: Attribute value is unset (empty).
* @G_FILE_ATTRIBUTE_STATUS_SET: Attribute value is set.
* @G_FILE_ATTRIBUTE_STATUS_ERROR_SETTING: Indicates an error in setting the value.
*
* Used by g_file_set_attributes_from_info() when setting file attributes.
**/
typedef enum {
G_FILE_ATTRIBUTE_STATUS_UNSET = 0,
G_FILE_ATTRIBUTE_STATUS_SET,
G_FILE_ATTRIBUTE_STATUS_ERROR_SETTING
} GFileAttributeStatus;
/**
* GFileQueryInfoFlags:
* @G_FILE_QUERY_INFO_NONE: No flags set.
* @G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS: Don't follow symlinks.
*
* Flags used when querying a #GFileInfo.
*/
typedef enum {
G_FILE_QUERY_INFO_NONE = 0,
G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS = (1 << 0) /*< nick=nofollow-symlinks >*/
} GFileQueryInfoFlags;
/**
* GFileCreateFlags:
* @G_FILE_CREATE_NONE: No flags set.
* @G_FILE_CREATE_PRIVATE: Create a file that can only be
* accessed by the current user.
* @G_FILE_CREATE_REPLACE_DESTINATION: Replace the destination
* as if it didn't exist before. Don't try to keep any old
* permissions, replace instead of following links. This
* is generally useful if you're doing a "copy over"
* rather than a "save new version of" replace operation.
* You can think of it as "unlink destination" before
* writing to it, although the implementation may not
* be exactly like that.
*
* Flags used when an operation may create a file.
*/
typedef enum {
G_FILE_CREATE_NONE = 0,
G_FILE_CREATE_PRIVATE = (1 << 0),
G_FILE_CREATE_REPLACE_DESTINATION = (1 << 1)
} GFileCreateFlags;
/**
* GMountMountFlags:
* @G_MOUNT_MOUNT_NONE: No flags set.
*
* Flags used when mounting a mount.
*/
typedef enum {
G_MOUNT_MOUNT_NONE = 0
} GMountMountFlags;
/**
* GMountUnmountFlags:
* @G_MOUNT_UNMOUNT_NONE: No flags set.
* @G_MOUNT_UNMOUNT_FORCE: Unmount even if there are outstanding
* file operations on the mount.
*
* Flags used when an unmounting a mount.
*/
typedef enum {
G_MOUNT_UNMOUNT_NONE = 0,
G_MOUNT_UNMOUNT_FORCE = (1 << 0)
} GMountUnmountFlags;
/**
* GFileCopyFlags:
* @G_FILE_COPY_NONE: No flags set.
* @G_FILE_COPY_OVERWRITE: Overwrite any existing files
* @G_FILE_COPY_BACKUP: Make a backup of any existing files.
* @G_FILE_COPY_NOFOLLOW_SYMLINKS: Don't follow symlinks.
* @G_FILE_COPY_ALL_METADATA: Copy all file metadata instead of just default set used for copy (see #GFileInfo).
* @G_FILE_COPY_NO_FALLBACK_FOR_MOVE: Don't use copy and delete fallback if native move not supported.
* @G_FILE_COPY_TARGET_DEFAULT_PERMS: Leaves target file with default perms, instead of setting the source file perms.
*
* Flags used when copying or moving files.
*/
typedef enum {
G_FILE_COPY_NONE = 0, /*< nick=none >*/
G_FILE_COPY_OVERWRITE = (1 << 0),
G_FILE_COPY_BACKUP = (1 << 1),
G_FILE_COPY_NOFOLLOW_SYMLINKS = (1 << 2),
G_FILE_COPY_ALL_METADATA = (1 << 3),
G_FILE_COPY_NO_FALLBACK_FOR_MOVE = (1 << 4),
G_FILE_COPY_TARGET_DEFAULT_PERMS = (1 << 5)
} GFileCopyFlags;
/**
* GFileMonitorFlags:
* @G_FILE_MONITOR_NONE: No flags set.
* @G_FILE_MONITOR_WATCH_MOUNTS: Watch for mount events.
*
* Flags used to set what a #GFileMonitor will watch for.
*/
typedef enum {
G_FILE_MONITOR_NONE = 0,
G_FILE_MONITOR_WATCH_MOUNTS = (1 << 0)
} GFileMonitorFlags;
/**
* GFileType:
* @G_FILE_TYPE_UNKNOWN: File's type is unknown.
* @G_FILE_TYPE_REGULAR: File handle represents a regular file.
* @G_FILE_TYPE_DIRECTORY: File handle represents a directory.
* @G_FILE_TYPE_SYMBOLIC_LINK: File handle represents a symbolic link
* (Unix systems).
* @G_FILE_TYPE_SPECIAL: File is a "special" file, such as a socket, fifo,
* block device, or character device.
* @G_FILE_TYPE_SHORTCUT: File is a shortcut (Windows systems).
* @G_FILE_TYPE_MOUNTABLE: File is a mountable location.
*
* Indicates the file's on-disk type.
**/
typedef enum {
G_FILE_TYPE_UNKNOWN = 0,
G_FILE_TYPE_REGULAR,
G_FILE_TYPE_DIRECTORY,
G_FILE_TYPE_SYMBOLIC_LINK,
G_FILE_TYPE_SPECIAL, /* socket, fifo, blockdev, chardev */
G_FILE_TYPE_SHORTCUT,
G_FILE_TYPE_MOUNTABLE
} GFileType;
/**
* GFilesystemPreviewType:
* @G_FILESYSTEM_PREVIEW_TYPE_IF_ALWAYS: Only preview files if user has explicitly requested it.
* @G_FILESYSTEM_PREVIEW_TYPE_IF_LOCAL: Preview files if user has requested preview of "local" files.
* @G_FILESYSTEM_PREVIEW_TYPE_NEVER: Never preview files.
*
* Indicates a hint from the file system whether files should be
* previewed in a file manager. Returned as the value of the key
* #G_FILE_ATTRIBUTE_FILESYSTEM_USE_PREVIEW.
**/
typedef enum {
G_FILESYSTEM_PREVIEW_TYPE_IF_ALWAYS = 0,
G_FILESYSTEM_PREVIEW_TYPE_IF_LOCAL,
G_FILESYSTEM_PREVIEW_TYPE_NEVER
} GFilesystemPreviewType;
/**
* GFileMonitorEvent:
* @G_FILE_MONITOR_EVENT_CHANGED: a file changed.
* @G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT: a hint that this was probably the last change in a set of changes.
* @G_FILE_MONITOR_EVENT_DELETED: a file was deleted.
* @G_FILE_MONITOR_EVENT_CREATED: a file was created.
* @G_FILE_MONITOR_EVENT_ATTRIBUTE_CHANGED: a file attribute was changed.
* @G_FILE_MONITOR_EVENT_PRE_UNMOUNT: the file location will soon be unmounted.
* @G_FILE_MONITOR_EVENT_UNMOUNTED: the file location was unmounted.
*
* Specifies what type of event a monitor event is.
**/
typedef enum {
G_FILE_MONITOR_EVENT_CHANGED,
G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT,
G_FILE_MONITOR_EVENT_DELETED,
G_FILE_MONITOR_EVENT_CREATED,
G_FILE_MONITOR_EVENT_ATTRIBUTE_CHANGED,
G_FILE_MONITOR_EVENT_PRE_UNMOUNT,
G_FILE_MONITOR_EVENT_UNMOUNTED
} GFileMonitorEvent;
/* This enumeration conflicts with GIOError in giochannel.h. However,
* that is only used as a return value in some deprecated functions.
* So, we reuse the same prefix for the enumeration values, but call
* the actual enumeration (which is rarely used) GIOErrorEnum.
*/
/**
* GIOErrorEnum:
* @G_IO_ERROR_FAILED: Generic error condition for when any operation fails.
* @G_IO_ERROR_NOT_FOUND: File not found error.
* @G_IO_ERROR_EXISTS: File already exists error.
* @G_IO_ERROR_IS_DIRECTORY: File is a directory error.
* @G_IO_ERROR_NOT_DIRECTORY: File is not a directory.
* @G_IO_ERROR_NOT_EMPTY: File is a directory that isn't empty.
* @G_IO_ERROR_NOT_REGULAR_FILE: File is not a regular file.
* @G_IO_ERROR_NOT_SYMBOLIC_LINK: File is not a symbolic link.
* @G_IO_ERROR_NOT_MOUNTABLE_FILE: File cannot be mounted.
* @G_IO_ERROR_FILENAME_TOO_LONG: Filename is too many characters.
* @G_IO_ERROR_INVALID_FILENAME: Filename is invalid or contains invalid characters.
* @G_IO_ERROR_TOO_MANY_LINKS: File contains too many symbolic links.
* @G_IO_ERROR_NO_SPACE: No space left on drive.
* @G_IO_ERROR_INVALID_ARGUMENT: Invalid argument.
* @G_IO_ERROR_PERMISSION_DENIED: Permission denied.
* @G_IO_ERROR_NOT_SUPPORTED: Operation not supported for the current backend.
* @G_IO_ERROR_NOT_MOUNTED: File isn't mounted.
* @G_IO_ERROR_ALREADY_MOUNTED: File is already mounted.
* @G_IO_ERROR_CLOSED: File was closed.
* @G_IO_ERROR_CANCELLED: Operation was cancelled. See #GCancellable.
* @G_IO_ERROR_PENDING: Operations are still pending.
* @G_IO_ERROR_READ_ONLY: File is read only.
* @G_IO_ERROR_CANT_CREATE_BACKUP: Backup couldn't be created.
* @G_IO_ERROR_WRONG_ETAG: File's Entity Tag was incorrect.
* @G_IO_ERROR_TIMED_OUT: Operation timed out.
* @G_IO_ERROR_WOULD_RECURSE: Operation would be recursive.
* @G_IO_ERROR_BUSY: File is busy.
* @G_IO_ERROR_WOULD_BLOCK: Operation would block.
* @G_IO_ERROR_HOST_NOT_FOUND: Host couldn't be found (remote operations).
* @G_IO_ERROR_WOULD_MERGE: Operation would merge files.
* @G_IO_ERROR_FAILED_HANDLED: Operation failed and a helper program has
* already interacted with the user. Do not display any error dialog.
* @G_IO_ERROR_TOO_MANY_OPEN_FILES: The current process has too many files
* open and can't open any more. Duplicate descriptors do count toward
* this limit. Since 2.20
*
* Error codes returned by GIO functions.
*
**/
typedef enum {
G_IO_ERROR_FAILED,
G_IO_ERROR_NOT_FOUND,
G_IO_ERROR_EXISTS,
G_IO_ERROR_IS_DIRECTORY,
G_IO_ERROR_NOT_DIRECTORY,
G_IO_ERROR_NOT_EMPTY,
G_IO_ERROR_NOT_REGULAR_FILE,
G_IO_ERROR_NOT_SYMBOLIC_LINK,
G_IO_ERROR_NOT_MOUNTABLE_FILE,
G_IO_ERROR_FILENAME_TOO_LONG,
G_IO_ERROR_INVALID_FILENAME,
G_IO_ERROR_TOO_MANY_LINKS,
G_IO_ERROR_NO_SPACE,
G_IO_ERROR_INVALID_ARGUMENT,
G_IO_ERROR_PERMISSION_DENIED,
G_IO_ERROR_NOT_SUPPORTED,
G_IO_ERROR_NOT_MOUNTED,
G_IO_ERROR_ALREADY_MOUNTED,
G_IO_ERROR_CLOSED,
G_IO_ERROR_CANCELLED,
G_IO_ERROR_PENDING,
G_IO_ERROR_READ_ONLY,
G_IO_ERROR_CANT_CREATE_BACKUP,
G_IO_ERROR_WRONG_ETAG,
G_IO_ERROR_TIMED_OUT,
G_IO_ERROR_WOULD_RECURSE,
G_IO_ERROR_BUSY,
G_IO_ERROR_WOULD_BLOCK,
G_IO_ERROR_HOST_NOT_FOUND,
G_IO_ERROR_WOULD_MERGE,
G_IO_ERROR_FAILED_HANDLED,
G_IO_ERROR_TOO_MANY_OPEN_FILES
} GIOErrorEnum;
/**
* GAskPasswordFlags:
* @G_ASK_PASSWORD_NEED_PASSWORD: operation requires a password.
* @G_ASK_PASSWORD_NEED_USERNAME: operation requires a username.
* @G_ASK_PASSWORD_NEED_DOMAIN: operation requires a domain.
* @G_ASK_PASSWORD_SAVING_SUPPORTED: operation supports saving settings.
* @G_ASK_PASSWORD_ANONYMOUS_SUPPORTED: operation supports anonymous users.
*
* #GAskPasswordFlags are used to request specific information from the
* user, or to notify the user of their choices in an authentication
* situation.
**/
typedef enum {
G_ASK_PASSWORD_NEED_PASSWORD = (1 << 0),
G_ASK_PASSWORD_NEED_USERNAME = (1 << 1),
G_ASK_PASSWORD_NEED_DOMAIN = (1 << 2),
G_ASK_PASSWORD_SAVING_SUPPORTED = (1 << 3),
G_ASK_PASSWORD_ANONYMOUS_SUPPORTED = (1 << 4)
} GAskPasswordFlags;
/**
* GPasswordSave:
* @G_PASSWORD_SAVE_NEVER: never save a password.
* @G_PASSWORD_SAVE_FOR_SESSION: save a password for the session.
* @G_PASSWORD_SAVE_PERMANENTLY: save a password permanently.
*
* #GPasswordSave is used to indicate the lifespan of a saved password.
*
* #Gvfs stores passwords in the Gnome keyring when this flag allows it
* to, and later retrieves it again from there.
**/
typedef enum {
G_PASSWORD_SAVE_NEVER,
G_PASSWORD_SAVE_FOR_SESSION,
G_PASSWORD_SAVE_PERMANENTLY
} GPasswordSave;
/**
* GMountOperationResult:
* @G_MOUNT_OPERATION_HANDLED: The request was fulfilled and the
* user specified data is now available
* @G_MOUNT_OPERATION_ABORTED: The user requested the mount operation
* to be aborted
* @G_MOUNT_OPERATION_UNHANDLED: The request was unhandled (i.e. not
* implemented)
*
* #GMountOperationResult is returned as a result when a request for
* information is send by the mounting operation.
**/
typedef enum {
G_MOUNT_OPERATION_HANDLED,
G_MOUNT_OPERATION_ABORTED,
G_MOUNT_OPERATION_UNHANDLED
} GMountOperationResult;
/**
* GOutputStreamSpliceFlags:
* @G_OUTPUT_STREAM_SPLICE_NONE: Do not close either stream.
* @G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE: Close the source stream after
* the splice.
* @G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET: Close the target stream after
* the splice.
*
* GOutputStreamSpliceFlags determine how streams should be spliced.
**/
typedef enum {
G_OUTPUT_STREAM_SPLICE_NONE = 0,
G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE = (1 << 0),
G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET = (1 << 1)
} GOutputStreamSpliceFlags;
/**
* GEmblemOrigin:
* @G_EMBLEM_ORIGIN_UNKNOWN: Emblem of unknown origin
* @G_EMBLEM_ORIGIN_DEVICE: Embleme adds device-specific information
* @G_EMBLEM_ORIGIN_LIVEMETADATA: Emblem depicts live metadata, such as "readonly"
* @G_EMBLEM_ORIGIN_TAG: Emblem comes from a user-defined tag, e.g. set by nautilus (in the future)
*
* GEmblemOrigin is used to add information about the origin of the emblem
* to #GEmblem.
*
* Since: 2.18
*/
typedef enum {
G_EMBLEM_ORIGIN_UNKNOWN,
G_EMBLEM_ORIGIN_DEVICE,
G_EMBLEM_ORIGIN_LIVEMETADATA,
G_EMBLEM_ORIGIN_TAG
} GEmblemOrigin;
G_END_DECLS
#endif /* __GIO_ENUMS_H__ */