/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <errno.h>
#ifdef HAVE_DIRENT_H
# include <dirent.h>
#endif
#include "unistd_wrapper.h"
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_PWD_H
# include <pwd.h>
#endif
#ifdef HAVE_GRP_H
# include <grp.h>
#endif
#import "OFFileManager.h"
#import "OFFile.h"
#import "OFString.h"
#import "OFArray.h"
#import "OFDate.h"
#import "OFSystemInfo.h"
#import "OFLocalization.h"
#ifdef OF_HAVE_THREADS
# import "OFMutex.h"
#endif
#import "OFChangeCurrentDirectoryPathFailedException.h"
#import "OFChangeOwnerFailedException.h"
#import "OFChangePermissionsFailedException.h"
#import "OFCopyItemFailedException.h"
#import "OFCreateDirectoryFailedException.h"
#import "OFCreateSymbolicLinkFailedException.h"
#import "OFInitializationFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFLinkFailedException.h"
#import "OFLockFailedException.h"
#import "OFMoveItemFailedException.h"
#import "OFNotImplementedException.h"
#import "OFOpenItemFailedException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"
#import "OFReadFailedException.h"
#import "OFRemoveItemFailedException.h"
#import "OFStatItemFailedException.h"
#import "OFUnlockFailedException.h"
#ifdef OF_WINDOWS
# include <windows.h>
# include <direct.h>
# include <ntdef.h>
#endif
#ifdef OF_MORPHOS
# define BOOL EXEC_BOOL
# include <proto/dos.h>
# include <proto/locale.h>
# undef BOOL
#endif
#if defined(OF_WINDOWS)
typedef struct __stat64 of_stat_t;
#elif defined(OF_MORPHOS)
typedef struct {
of_offset_t st_size;
mode_t st_mode;
of_time_interval_t st_atime, st_mtime, st_ctime;
} of_stat_t;
#elif defined(OF_HAVE_OFF64_T)
typedef struct stat64 of_stat_t;
#else
typedef struct stat of_stat_t;
#endif
#ifndef S_ISLNK
# define S_ISLNK(s) 0
#endif
static OFFileManager *defaultManager;
#if defined(OF_HAVE_CHOWN) && defined(OF_HAVE_THREADS) && !defined(OF_MORPHOS)
static OFMutex *passwdMutex;
#endif
#if !defined(HAVE_READDIR_R) && defined(OF_HAVE_THREADS) && !defined(OF_WINDOWS)
static OFMutex *readdirMutex;
#endif
#ifdef OF_WINDOWS
static WINAPI BOOLEAN (*func_CreateSymbolicLinkW)(LPCWSTR, LPCWSTR, DWORD);
#endif
#ifdef OF_MORPHOS
static bool dirChanged = false;
static BPTR originalDirLock = 0;
OF_DESTRUCTOR()
{
if (dirChanged)
UnLock(CurrentDir(originalDirLock));
}
#endif
static int
of_stat(OFString *path, of_stat_t *buffer)
{
#if defined(OF_WINDOWS)
return _wstat64([path UTF16String], buffer);
#elif defined(OF_MORPHOS)
BPTR lock;
struct FileInfoBlock fib;
of_time_interval_t timeInterval;
struct Locale *locale;
if ((lock = Lock([path cStringWithEncoding: [OFLocalization encoding]],
SHARED_LOCK)) == 0) {
switch (IoErr()) {
case ERROR_OBJECT_IN_USE:
case ERROR_DISK_NOT_VALIDATED:
errno = EBUSY;
break;
case ERROR_OBJECT_NOT_FOUND:
errno = ENOENT;
break;
default:
errno = 0;
break;
}
return -1;
}
if (!Examine64(lock, &fib, TAG_DONE)) {
UnLock(lock);
errno = 0;
return -1;
}
UnLock(lock);
buffer->st_size = fib.fib_Size64;
buffer->st_mode = (fib.fib_DirEntryType > 0 ? S_IFDIR : S_IFREG);
timeInterval = 252460800; /* 1978-01-01 */
locale = OpenLocale(NULL);
/*
* FIXME: This does not take DST into account. But unfortunately, there
* is no way to figure out if DST was in effect when the file was
* modified.
*/
timeInterval += locale->loc_GMTOffset * 60.0;
CloseLocale(locale);
timeInterval += fib.fib_Date.ds_Days * 86400.0;
timeInterval += fib.fib_Date.ds_Minute * 60.0;
timeInterval +=
fib.fib_Date.ds_Tick / (of_time_interval_t)TICKS_PER_SECOND;
buffer->st_atime = buffer->st_mtime = buffer->st_ctime = timeInterval;
return 0;
#elif defined(OF_HAVE_OFF64_T)
return stat64([path cStringWithEncoding: [OFLocalization encoding]],
buffer);
#else
return stat([path cStringWithEncoding: [OFLocalization encoding]],
buffer);
#endif
}
static int
of_lstat(OFString *path, of_stat_t *buffer)
{
#if defined(HAVE_LSTAT) && !defined(OF_WINDOWS) && !defined(OF_MORPHOS)
# ifdef OF_HAVE_OFF64_T
return lstat64([path cStringWithEncoding: [OFLocalization encoding]],
buffer);
# else
return lstat([path cStringWithEncoding: [OFLocalization encoding]],
buffer);
# endif
#else
return of_stat(path, buffer);
#endif
}
@implementation OFFileManager
+ (void)initialize
{
#ifdef OF_WINDOWS
HMODULE module;
#endif
if (self != [OFFileManager class])
return;
/*
* Make sure OFFile is initialized.
* On some systems, this is needed to initialize the file system driver.
*/
[OFFile class];
#if defined(OF_HAVE_CHOWN) && defined(OF_HAVE_THREADS)
passwdMutex = [[OFMutex alloc] init];
#endif
#if !defined(HAVE_READDIR_R) && !defined(OF_WINDOWS) && defined(OF_HAVE_THREADS)
readdirMutex = [[OFMutex alloc] init];
#endif
#ifdef OF_WINDOWS
if ((module = LoadLibrary("kernel32.dll")) != NULL)
func_CreateSymbolicLinkW =
(WINAPI BOOLEAN (*)(LPCWSTR, LPCWSTR, DWORD))
GetProcAddress(module, "CreateSymbolicLinkW");
#endif
defaultManager = [[OFFileManager alloc] init];
}
+ (OFFileManager *)defaultManager
{
return defaultManager;
}
- (OFString *)currentDirectoryPath
{
#if defined(OF_WINDOWS)
OFString *ret;
wchar_t *buffer = _wgetcwd(NULL, 0);
@try {
ret = [OFString stringWithUTF16String: buffer];
} @finally {
free(buffer);
}
return ret;
#elif defined(OF_MORPHOS)
char buffer[512];
if (!NameFromLock(((struct Process *)FindTask(NULL))->pr_CurrentDir,
buffer, 512)) {
if (IoErr() == ERROR_LINE_TOO_LONG)
@throw [OFOutOfRangeException exception];
return nil;
}
return [OFString stringWithCString: buffer
encoding: [OFLocalization encoding]];
#else
OFString *ret;
char *buffer = getcwd(NULL, 0);
@try {
ret = [OFString
stringWithCString: buffer
encoding: [OFLocalization encoding]];
} @finally {
free(buffer);
}
return ret;
#endif
}
- (bool)fileExistsAtPath: (OFString *)path
{
of_stat_t s;
if (path == nil)
@throw [OFInvalidArgumentException exception];
if (of_stat(path, &s) == -1)
return false;
return S_ISREG(s.st_mode);
}
- (bool)directoryExistsAtPath: (OFString *)path
{
of_stat_t s;
if (path == nil)
@throw [OFInvalidArgumentException exception];
if (of_stat(path, &s) == -1)
return false;
return S_ISDIR(s.st_mode);
}
#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
- (bool)symbolicLinkExistsAtPath: (OFString *)path
{
# ifndef OF_WINDOWS
of_stat_t s;
if (path == nil)
@throw [OFInvalidArgumentException exception];
if (of_lstat(path, &s) == -1)
return false;
return S_ISLNK(s.st_mode);
# else
WIN32_FIND_DATAW data;
if (!FindFirstFileW([path UTF16String], &data))
return false;
if ((data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) &&
data.dwReserved0 == IO_REPARSE_TAG_SYMLINK)
return true;
return false;
# endif
}
#endif
- (void)createDirectoryAtPath: (OFString *)path
{
if (path == nil)
@throw [OFInvalidArgumentException exception];
#if defined(OF_WINDOWS)
if (_wmkdir([path UTF16String]) != 0)
@throw [OFCreateDirectoryFailedException
exceptionWithPath: path
errNo: errno];
#elif defined(OF_MORPHOS)
BPTR lock;
if ((lock = CreateDir(
[path cStringWithEncoding: [OFLocalization encoding]])) == 0) {
int errNo;
switch (IoErr()) {
case ERROR_NO_FREE_STORE:
case ERROR_DISK_FULL:
errNo = ENOSPC;
break;
case ERROR_OBJECT_IN_USE:
case ERROR_DISK_NOT_VALIDATED:
errNo = EBUSY;
break;
case ERROR_OBJECT_EXISTS:
errNo = EEXIST;
break;
case ERROR_OBJECT_NOT_FOUND:
errNo = ENOENT;
break;
case ERROR_DISK_WRITE_PROTECTED:
errNo = EROFS;
break;
default:
errNo = 0;
break;
}
@throw [OFCreateDirectoryFailedException
exceptionWithPath: path
errNo: errNo];
}
UnLock(lock);
#else
if (mkdir([path cStringWithEncoding: [OFLocalization encoding]],
0777) != 0)
@throw [OFCreateDirectoryFailedException
exceptionWithPath: path
errNo: errno];
#endif
}
- (void)createDirectoryAtPath: (OFString *)path
createParents: (bool)createParents
{
OFString *currentPath = nil;
if (!createParents) {
[self createDirectoryAtPath: path];
return;
}
if (path == nil)
@throw [OFInvalidArgumentException exception];
for (OFString *component in [path pathComponents]) {
void *pool = objc_autoreleasePoolPush();
if (currentPath != nil)
currentPath = [currentPath
stringByAppendingPathComponent: component];
else
currentPath = component;
if ([currentPath length] > 0 &&
![self directoryExistsAtPath: currentPath])
[self createDirectoryAtPath: currentPath];
[currentPath retain];
objc_autoreleasePoolPop(pool);
[currentPath autorelease];
}
}
- (OFArray *)contentsOfDirectoryAtPath: (OFString *)path
{
OFMutableArray *files;
if (path == nil)
@throw [OFInvalidArgumentException exception];
files = [OFMutableArray array];
#if defined(OF_WINDOWS)
void *pool = objc_autoreleasePoolPush();
HANDLE handle;
WIN32_FIND_DATAW fd;
path = [path stringByAppendingString: @"\\*"];
if ((handle = FindFirstFileW([path UTF16String],
&fd)) == INVALID_HANDLE_VALUE) {
int errNo = 0;
if (GetLastError() == ERROR_FILE_NOT_FOUND)
errNo = ENOENT;
@throw [OFOpenItemFailedException exceptionWithPath: path
mode: nil
errNo: errNo];
}
@try {
do {
OFString *file;
if (!wcscmp(fd.cFileName, L".") ||
!wcscmp(fd.cFileName, L".."))
continue;
file = [OFString stringWithUTF16String: fd.cFileName];
@try {
[files addObject: file];
} @finally {
[file release];
}
} while (FindNextFileW(handle, &fd));
if (GetLastError() != ERROR_NO_MORE_FILES)
@throw [OFReadFailedException exceptionWithObject: self
requestedLength: 0
errNo: EIO];
} @finally {
FindClose(handle);
}
objc_autoreleasePoolPop(pool);
#elif defined(OF_MORPHOS)
of_string_encoding_t encoding = [OFLocalization encoding];
BPTR lock;
struct FileInfoBlock fib;
if ((lock = Lock([path cStringWithEncoding: encoding],
SHARED_LOCK)) == 0) {
int errNo;
switch (IoErr()) {
case ERROR_OBJECT_IN_USE:
case ERROR_DISK_NOT_VALIDATED:
errNo = EBUSY;
break;
case ERROR_OBJECT_NOT_FOUND:
errNo = ENOENT;
break;
default:
errNo = 0;
break;
}
@throw [OFOpenItemFailedException exceptionWithPath: path
mode: nil
errNo: errNo];
}
@try {
if (!Examine(lock, &fib))
@throw [OFOpenItemFailedException
exceptionWithPath: path
mode: nil
errNo: 0];
while (ExNext(lock, &fib)) {
OFString *file;
file = [[OFString alloc]
initWithCString: fib.fib_FileName
encoding: encoding];
@try {
[files addObject: file];
} @finally {
[file release];
}
}
if (IoErr() != ERROR_NO_MORE_ENTRIES)
@throw [OFReadFailedException
exceptionWithObject: self
requestedLength: 0
errNo: EIO];
} @finally {
UnLock(lock);
}
#else
of_string_encoding_t encoding = [OFLocalization encoding];
DIR *dir;
if ((dir = opendir([path cStringWithEncoding: encoding])) == NULL)
@throw [OFOpenItemFailedException exceptionWithPath: path
mode: nil
errNo: errno];
# if !defined(HAVE_READDIR_R) && defined(OF_HAVE_THREADS)
@try {
[readdirMutex lock];
} @catch (id e) {
closedir(dir);
@throw e;
}
# endif
@try {
for (;;) {
struct dirent *dirent;
# ifdef HAVE_READDIR_R
struct dirent buffer;
# endif
OFString *file;
# ifdef HAVE_READDIR_R
if (readdir_r(dir, &buffer, &dirent) != 0)
@throw [OFReadFailedException
exceptionWithObject: self
requestedLength: 0
errNo: errno];
if (dirent == NULL)
break;
# else
errno = 0;
if ((dirent = readdir(dir)) == NULL) {
if (errno == 0)
break;
else
@throw [OFReadFailedException
exceptionWithObject: self
requestedLength: 0
errNo: errno];
}
# endif
if (strcmp(dirent->d_name, ".") == 0 ||
strcmp(dirent->d_name, "..") == 0)
continue;
file = [[OFString alloc] initWithCString: dirent->d_name
encoding: encoding];
@try {
[files addObject: file];
} @finally {
[file release];
}
}
} @finally {
closedir(dir);
# if !defined(HAVE_READDIR_R) && defined(OF_HAVE_THREADS)
[readdirMutex unlock];
# endif
}
#endif
[files makeImmutable];
return files;
}
- (void)changeCurrentDirectoryPath: (OFString *)path
{
if (path == nil)
@throw [OFInvalidArgumentException exception];
#if defined(OF_WINDOWS)
if (_wchdir([path UTF16String]) != 0)
@throw [OFChangeCurrentDirectoryPathFailedException
exceptionWithPath: path
errNo: errno];
#elif defined(OF_MORPHOS)
BPTR lock, oldLock;
if ((lock = Lock([path cStringWithEncoding: [OFLocalization encoding]],
SHARED_LOCK)) == 0) {
int errNo;
switch (IoErr()) {
case ERROR_OBJECT_IN_USE:
case ERROR_DISK_NOT_VALIDATED:
errNo = EBUSY;
break;
case ERROR_OBJECT_NOT_FOUND:
errNo = ENOENT;
break;
default:
errNo = 0;
break;
}
@throw [OFChangeCurrentDirectoryPathFailedException
exceptionWithPath: path
errNo: errNo];
}
oldLock = CurrentDir(lock);
if (!dirChanged)
originalDirLock = oldLock;
else
UnLock(oldLock);
dirChanged = true;
#else
if (chdir([path cStringWithEncoding: [OFLocalization encoding]]) != 0)
@throw [OFChangeCurrentDirectoryPathFailedException
exceptionWithPath: path
errNo: errno];
#endif
}
- (of_offset_t)sizeOfFileAtPath: (OFString *)path
{
of_stat_t s;
if (path == nil)
@throw [OFInvalidArgumentException exception];
if (of_stat(path, &s) != 0)
@throw [OFStatItemFailedException exceptionWithPath: path
errNo: errno];
return s.st_size;
}
- (OFDate *)accessTimeOfItemAtPath: (OFString *)path
{
of_stat_t s;
if (path == nil)
@throw [OFInvalidArgumentException exception];
if (of_stat(path, &s) != 0)
@throw [OFStatItemFailedException exceptionWithPath: path
errNo: errno];
/* FIXME: We could be more precise on some OSes */
return [OFDate dateWithTimeIntervalSince1970: s.st_atime];
}
- (OFDate *)modificationDateOfItemAtPath: (OFString *)path
{
of_stat_t s;
if (path == nil)
@throw [OFInvalidArgumentException exception];
if (of_stat(path, &s) != 0)
@throw [OFStatItemFailedException exceptionWithPath: path
errNo: errno];
/* FIXME: We could be more precise on some OSes */
return [OFDate dateWithTimeIntervalSince1970: s.st_mtime];
}
- (OFDate *)statusChangeTimeOfItemAtPath: (OFString *)path
{
of_stat_t s;
if (path == nil)
@throw [OFInvalidArgumentException exception];
if (of_stat(path, &s) != 0)
@throw [OFStatItemFailedException exceptionWithPath: path
errNo: errno];
/* FIXME: We could be more precise on some OSes */
return [OFDate dateWithTimeIntervalSince1970: s.st_ctime];
}
#ifdef OF_FILE_MANAGER_SUPPORTS_PERMISSIONS
- (uint16_t)permissionsOfItemAtPath: (OFString *)path
{
of_stat_t s;
if (path == nil)
@throw [OFInvalidArgumentException exception];
if (of_stat(path, &s) != 0)
@throw [OFStatItemFailedException exceptionWithPath: path
errNo: errno];
return s.st_mode & 07777;
}
- (void)changePermissionsOfItemAtPath: (OFString *)path
permissions: (uint16_t)permissions
{
if (path == nil)
@throw [OFInvalidArgumentException exception];
permissions &= 0777;
# ifndef OF_WINDOWS
if (chmod([path cStringWithEncoding: [OFLocalization encoding]],
permissions) != 0)
# else
if (_wchmod([path UTF16String], permissions) != 0)
# endif
@throw [OFChangePermissionsFailedException
exceptionWithPath: path
permissions: permissions
errNo: errno];
}
#endif
#ifdef OF_FILE_MANAGER_SUPPORTS_OWNER
- (void)getUID: (uint16_t *)UID
GID: (uint16_t *)GID
ofItemAtPath: (OFString *)path
{
of_stat_t s;
if (path == nil)
@throw [OFInvalidArgumentException exception];
if (of_stat(path, &s) != 0)
@throw [OFStatItemFailedException exceptionWithPath: path
errNo: errno];
if (UID != NULL)
*UID = s.st_uid;
if (GID != NULL)
*GID = s.st_gid;
}
- (void)getOwner: (OFString **)owner
group: (OFString **)group
ofItemAtPath: (OFString *)path
{
uint16_t UID, GID;
[self getUID: &UID
GID: &GID
ofItemAtPath: path];
# ifdef OF_HAVE_THREADS
[passwdMutex lock];
@try {
# endif
of_string_encoding_t encoding = [OFLocalization encoding];
if (owner != NULL) {
struct passwd *passwd = getpwuid(UID);
*owner = [OFString stringWithCString: passwd->pw_name
encoding: encoding];
}
if (group != NULL) {
struct group *group_ = getgrgid(GID);
*group = [OFString stringWithCString: group_->gr_name
encoding: encoding];
}
# ifdef OF_HAVE_THREADS
} @finally {
[passwdMutex unlock];
}
# endif
}
- (void)changeOwnerOfItemAtPath: (OFString *)path
owner: (OFString *)owner
group: (OFString *)group
{
uid_t uid = -1;
gid_t gid = -1;
of_string_encoding_t encoding;
if (path == nil || (owner == nil && group == nil))
@throw [OFInvalidArgumentException exception];
encoding = [OFLocalization encoding];
# ifdef OF_HAVE_THREADS
[passwdMutex lock];
@try {
# endif
if (owner != nil) {
struct passwd *passwd;
if ((passwd = getpwnam([owner
cStringWithEncoding: encoding])) == NULL)
@throw [OFChangeOwnerFailedException
exceptionWithPath: path
owner: owner
group: group
errNo: errno];
uid = passwd->pw_uid;
}
if (group != nil) {
struct group *group_;
if ((group_ = getgrnam([group
cStringWithEncoding: encoding])) == NULL)
@throw [OFChangeOwnerFailedException
exceptionWithPath: path
owner: owner
group: group
errNo: errno];
gid = group_->gr_gid;
}
# ifdef OF_HAVE_THREADS
} @finally {
[passwdMutex unlock];
}
# endif
if (chown([path cStringWithEncoding: encoding], uid, gid) != 0)
@throw [OFChangeOwnerFailedException exceptionWithPath: path
owner: owner
group: group
errNo: errno];
}
#endif
- (void)copyItemAtPath: (OFString *)source
toPath: (OFString *)destination
{
void *pool;
of_stat_t s;
if (source == nil || destination == nil)
@throw [OFInvalidArgumentException exception];
pool = objc_autoreleasePoolPush();
if (of_lstat(destination, &s) == 0)
@throw [OFCopyItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: EEXIST];
if (of_lstat(source, &s) != 0)
@throw [OFCopyItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: errno];
if (S_ISDIR(s.st_mode)) {
OFArray *contents;
@try {
[self createDirectoryAtPath: destination];
#ifdef OF_FILE_MANAGER_SUPPORTS_PERMISSIONS
[self changePermissionsOfItemAtPath: destination
permissions: s.st_mode];
#endif
contents = [self contentsOfDirectoryAtPath: source];
} @catch (id e) {
/*
* Only convert exceptions to OFCopyItemFailedException
* that have an errNo property. This covers all I/O
* related exceptions from the operations used to copy
* an item, all others should be left as is.
*/
if ([e respondsToSelector: @selector(errNo)])
@throw [OFCopyItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: [e errNo]];
@throw e;
}
for (OFString *item in contents) {
void *pool2 = objc_autoreleasePoolPush();
OFString *sourcePath, *destinationPath;
sourcePath =
[source stringByAppendingPathComponent: item];
destinationPath =
[destination stringByAppendingPathComponent: item];
[self copyItemAtPath: sourcePath
toPath: destinationPath];
objc_autoreleasePoolPop(pool2);
}
} else if (S_ISREG(s.st_mode)) {
size_t pageSize = [OFSystemInfo pageSize];
OFFile *sourceFile = nil;
OFFile *destinationFile = nil;
char *buffer;
if ((buffer = malloc(pageSize)) == NULL)
@throw [OFOutOfMemoryException
exceptionWithRequestedSize: pageSize];
@try {
sourceFile = [OFFile fileWithPath: source
mode: @"r"];
destinationFile = [OFFile fileWithPath: destination
mode: @"w"];
while (![sourceFile isAtEndOfStream]) {
size_t length;
length = [sourceFile readIntoBuffer: buffer
length: pageSize];
[destinationFile writeBuffer: buffer
length: length];
}
#ifdef OF_FILE_MANAGER_SUPPORTS_PERMISSIONS
[self changePermissionsOfItemAtPath: destination
permissions: s.st_mode];
#endif
} @catch (id e) {
/*
* Only convert exceptions to OFCopyItemFailedException
* that have an errNo property. This covers all I/O
* related exceptions from the operations used to copy
* an item, all others should be left as is.
*/
if ([e respondsToSelector: @selector(errNo)])
@throw [OFCopyItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: [e errNo]];
@throw e;
} @finally {
[sourceFile close];
[destinationFile close];
free(buffer);
}
#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
} else if (S_ISLNK(s.st_mode)) {
@try {
source = [self destinationOfSymbolicLinkAtPath: source];
[self createSymbolicLinkAtPath: destination
withDestinationPath: source];
} @catch (id e) {
/*
* Only convert exceptions to OFCopyItemFailedException
* that have an errNo property. This covers all I/O
* related exceptions from the operations used to copy
* an item, all others should be left as is.
*/
if ([e respondsToSelector: @selector(errNo)])
@throw [OFCopyItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: [e errNo]];
@throw e;
}
#endif
} else
@throw [OFCopyItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: EINVAL];
objc_autoreleasePoolPop(pool);
}
- (void)moveItemAtPath: (OFString *)source
toPath: (OFString *)destination
{
of_stat_t s;
if (source == nil || destination == nil)
@throw [OFInvalidArgumentException exception];
if (of_lstat(destination, &s) == 0)
@throw [OFMoveItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: EEXIST];
#if defined(OF_WINDOWS)
void *pool = objc_autoreleasePoolPush();
if (_wrename([source UTF16String], [destination UTF16String]) != 0) {
if (errno != EXDEV)
@throw [OFMoveItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: errno];
#elif defined(OF_MORPHOS)
of_string_encoding_t encoding = [OFLocalization encoding];
if (!Rename([source cStringWithEncoding: encoding],
[destination cStringWithEncoding: encoding]) != 0) {
LONG err;
if ((err = IoErr()) != ERROR_RENAME_ACROSS_DEVICES) {
int errNo;
switch (err) {
case ERROR_OBJECT_IN_USE:
case ERROR_DISK_NOT_VALIDATED:
errNo = EBUSY;
break;
case ERROR_OBJECT_EXISTS:
errNo = EEXIST;
break;
case ERROR_OBJECT_NOT_FOUND:
errNo = ENOENT;
break;
case ERROR_DISK_WRITE_PROTECTED:
errNo = EROFS;
break;
default:
errNo = 0;
break;
}
@throw [OFMoveItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: errNo];
}
#else
of_string_encoding_t encoding = [OFLocalization encoding];
if (rename([source cStringWithEncoding: encoding],
[destination cStringWithEncoding: encoding]) != 0) {
if (errno != EXDEV)
@throw [OFMoveItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: errno];
#endif
@try {
[self copyItemAtPath: source
toPath: destination];
} @catch (OFCopyItemFailedException *e) {
[self removeItemAtPath: destination];
@throw [OFMoveItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: [e errNo]];
}
@try {
[self removeItemAtPath: source];
} @catch (OFRemoveItemFailedException *e) {
@throw [OFMoveItemFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: [e errNo]];
}
}
#ifdef OF_WINDOWS
objc_autoreleasePoolPop(pool);
#endif
}
- (void)removeItemAtPath: (OFString *)path
{
void *pool;
of_stat_t s;
if (path == nil)
@throw [OFInvalidArgumentException exception];
pool = objc_autoreleasePoolPush();
if (of_lstat(path, &s) != 0)
@throw [OFRemoveItemFailedException exceptionWithPath: path
errNo: errno];
if (S_ISDIR(s.st_mode)) {
OFArray *contents;
@try {
contents = [self contentsOfDirectoryAtPath: path];
} @catch (id e) {
/*
* Only convert exceptions to
* OFRemoveItemFailedException that have an errNo
* property. This covers all I/O related exceptions
* from the operations used to remove an item, all
* others should be left as is.
*/
if ([e respondsToSelector: @selector(errNo)])
@throw [OFRemoveItemFailedException
exceptionWithPath: path
errNo: [e errNo]];
@throw e;
}
for (OFString *item in contents) {
void *pool2 = objc_autoreleasePoolPush();
[self removeItemAtPath:
[path stringByAppendingPathComponent: item]];
objc_autoreleasePoolPop(pool2);
}
#ifndef OF_MORPHOS
# ifndef OF_WINDOWS
if (rmdir([path cStringWithEncoding:
[OFLocalization encoding]]) != 0)
# else
if (_wrmdir([path UTF16String]) != 0)
# endif
@throw [OFRemoveItemFailedException
exceptionWithPath: path
errNo: errno];
} else {
# ifndef OF_WINDOWS
if (unlink([path cStringWithEncoding:
[OFLocalization encoding]]) != 0)
# else
if (_wunlink([path UTF16String]) != 0)
# endif
@throw [OFRemoveItemFailedException
exceptionWithPath: path
errNo: errno];
#endif
}
#ifdef OF_MORPHOS
if (!DeleteFile(
[path cStringWithEncoding: [OFLocalization encoding]])) {
int errNo;
switch (IoErr()) {
case ERROR_OBJECT_IN_USE:
case ERROR_DISK_NOT_VALIDATED:
errNo = EBUSY;
break;
case ERROR_OBJECT_NOT_FOUND:
errNo = ENOENT;
break;
case ERROR_DISK_WRITE_PROTECTED:
errNo = EROFS;
break;
case ERROR_DELETE_PROTECTED:
errNo = EACCES;
break;
default:
errNo = 0;
break;
}
@throw [OFRemoveItemFailedException exceptionWithPath: path
errNo: errNo];
}
#endif
objc_autoreleasePoolPop(pool);
}
#ifdef OF_FILE_MANAGER_SUPPORTS_LINKS
- (void)linkItemAtPath: (OFString *)source
toPath: (OFString *)destination
{
void *pool;
if (source == nil || destination == nil)
@throw [OFInvalidArgumentException exception];
pool = objc_autoreleasePoolPush();
# ifndef OF_WINDOWS
of_string_encoding_t encoding = [OFLocalization encoding];
if (link([source cStringWithEncoding: encoding],
[destination cStringWithEncoding: encoding]) != 0)
@throw [OFLinkFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: errno];
# else
if (!CreateHardLinkW([destination UTF16String],
[source UTF16String], NULL))
@throw [OFLinkFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: 0];
# endif
objc_autoreleasePoolPop(pool);
}
#endif
#ifdef OF_FILE_MANAGER_SUPPORTS_SYMLINKS
- (void)createSymbolicLinkAtPath: (OFString *)destination
withDestinationPath: (OFString *)source
{
void *pool;
if (source == nil || destination == nil)
@throw [OFInvalidArgumentException exception];
pool = objc_autoreleasePoolPush();
# ifndef OF_WINDOWS
of_string_encoding_t encoding = [OFLocalization encoding];
if (symlink([source cStringWithEncoding: encoding],
[destination cStringWithEncoding: encoding]) != 0)
@throw [OFCreateSymbolicLinkFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: errno];
# else
if (func_CreateSymbolicLinkW == NULL)
@throw [OFNotImplementedException exceptionWithSelector: _cmd
object: self];
if (!func_CreateSymbolicLinkW([destination UTF16String],
[source UTF16String], 0))
@throw [OFCreateSymbolicLinkFailedException
exceptionWithSourcePath: source
destinationPath: destination
errNo: 0];
# endif
objc_autoreleasePoolPop(pool);
}
- (OFString *)destinationOfSymbolicLinkAtPath: (OFString *)path
{
if (path == nil)
@throw [OFInvalidArgumentException exception];
# ifndef OF_WINDOWS
char destination[PATH_MAX];
ssize_t length;
of_string_encoding_t encoding;
encoding = [OFLocalization encoding];
length = readlink([path cStringWithEncoding: encoding],
destination, PATH_MAX);
if (length < 0)
@throw [OFStatItemFailedException exceptionWithPath: path
errNo: errno];
return [OFString stringWithCString: destination
encoding: encoding
length: length];
# else
HANDLE handle;
/* Check if we're on a version that actually supports symlinks. */
if (func_CreateSymbolicLinkW == NULL)
@throw [OFNotImplementedException exceptionWithSelector: _cmd
object: self];
if ((handle = CreateFileW([path UTF16String], 0,
(FILE_SHARE_READ | FILE_SHARE_WRITE), NULL, OPEN_EXISTING,
FILE_FLAG_OPEN_REPARSE_POINT, NULL)) == INVALID_HANDLE_VALUE)
@throw [OFStatItemFailedException exceptionWithPath: path
errNo: 0];
@try {
union {
char bytes[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
REPARSE_DATA_BUFFER data;
} buffer;
DWORD size;
wchar_t *tmp;
if (!DeviceIoControl(handle, FSCTL_GET_REPARSE_POINT, NULL, 0,
buffer.bytes, MAXIMUM_REPARSE_DATA_BUFFER_SIZE, &size,
NULL))
@throw [OFStatItemFailedException
exceptionWithPath: path
errNo: 0];
if (buffer.data.ReparseTag != IO_REPARSE_TAG_SYMLINK)
@throw [OFStatItemFailedException
exceptionWithPath: path
errNo: 0];
# define slrb buffer.data.SymbolicLinkReparseBuffer
tmp = slrb.PathBuffer +
(slrb.SubstituteNameOffset / sizeof(wchar_t));
return [OFString
stringWithUTF16String: tmp
length: slrb.SubstituteNameLength /
sizeof(wchar_t)];
# undef slrb
} @finally {
CloseHandle(handle);
}
# endif
}
#endif
@end