//static
QFileSystemEntry QFileSystemEngine::canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data)
{
if (entry.isEmpty() || entry.isRoot())
return entry;
QFileSystemEntry result = absoluteName(entry);
if (!data.hasFlags(QFileSystemMetaData::ExistsAttribute))
fillMetaData(result, data, QFileSystemMetaData::ExistsAttribute);
if (!data.exists()) {
// file doesn't exist
return QFileSystemEntry();
} else {
return result;
}
}
//static
bool QFileSystemEngine::setCurrentPath(const QFileSystemEntry &entry)
{
QFileSystemMetaData meta;
QFileSystemEntry absname = absoluteName(entry);
fillMetaData(absname, meta, QFileSystemMetaData::ExistsAttribute | QFileSystemMetaData::DirectoryType);
if(!(meta.exists() && meta.isDirectory()))
return false;
RFs& fs = qt_s60GetRFs();
QString abspath = absname.nativeFilePath();
if(!abspath.endsWith(QLatin1Char('\\')))
abspath.append(QLatin1Char('\\'));
TInt r = fs.SetSessionPath(qt_QString2TPtrC(abspath));
//SetSessionPath succeeds for non existent directory, which is why it's checked above
if (r == KErrNone) {
__ASSERT_COMPILE(sizeof(wchar_t) == sizeof(unsigned short));
//attempt to set open C to the same path
r = ::wchdir(reinterpret_cast<const wchar_t *>(absname.filePath().utf16()));
if (r < 0)
qWarning("failed to sync path to open C");
return true;
}
return false;
}
//static
QFileSystemEntry QFileSystemEngine::canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data)
{
if (entry.isEmpty() || entry.isRoot())
return entry;
#if !defined(Q_OS_MAC) && !defined(Q_OS_QNX) && !defined(Q_OS_ANDROID) && !defined(Q_OS_HAIKU) && _POSIX_VERSION < 200809L
// realpath(X,0) is not supported
Q_UNUSED(data);
return QFileSystemEntry(slowCanonicalized(absoluteName(entry).filePath()));
#else
char *ret = 0;
# if defined(Q_OS_DARWIN)
ret = (char*)malloc(PATH_MAX + 1);
if (ret && realpath(entry.nativeFilePath().constData(), (char*)ret) == 0) {
const int savedErrno = errno; // errno is checked below, and free() might change it
free(ret);
errno = savedErrno;
ret = 0;
}
# elif defined(Q_OS_ANDROID)
// On some Android versions, realpath() will return a path even if it does not exist
// To work around this, we check existence in advance.
if (!data.hasFlags(QFileSystemMetaData::ExistsAttribute))
fillMetaData(entry, data, QFileSystemMetaData::ExistsAttribute);
if (!data.exists()) {
ret = 0;
errno = ENOENT;
} else {
ret = (char*)malloc(PATH_MAX + 1);
if (realpath(entry.nativeFilePath().constData(), (char*)ret) == 0) {
const int savedErrno = errno; // errno is checked below, and free() might change it
free(ret);
errno = savedErrno;
ret = 0;
}
}
# else
# if _POSIX_VERSION >= 200801L
ret = realpath(entry.nativeFilePath().constData(), (char*)0);
# else
ret = (char*)malloc(PATH_MAX + 1);
if (realpath(entry.nativeFilePath().constData(), (char*)ret) == 0) {
const int savedErrno = errno; // errno is checked below, and free() might change it
free(ret);
errno = savedErrno;
ret = 0;
}
# endif
# endif
if (ret) {
data.knownFlagsMask |= QFileSystemMetaData::ExistsAttribute;
data.entryFlags |= QFileSystemMetaData::ExistsAttribute;
QString canonicalPath = QDir::cleanPath(QString::fromLocal8Bit(ret));
free(ret);
return QFileSystemEntry(canonicalPath);
} else if (errno == ENOENT) { // file doesn't exist
data.knownFlagsMask |= QFileSystemMetaData::ExistsAttribute;
data.entryFlags &= ~(QFileSystemMetaData::ExistsAttribute);
return QFileSystemEntry();
}
return entry;
#endif
}
//static
QFileSystemEntry QFileSystemEngine::getLinkTarget(const QFileSystemEntry &link, QFileSystemMetaData &data)
{
#if defined(__GLIBC__) && !defined(PATH_MAX)
#define PATH_CHUNK_SIZE 256
char *s = 0;
int len = -1;
int size = PATH_CHUNK_SIZE;
while (1) {
s = (char *) ::realloc(s, size);
Q_CHECK_PTR(s);
len = ::readlink(link.nativeFilePath().constData(), s, size);
if (len < 0) {
::free(s);
break;
}
if (len < size) {
break;
}
size *= 2;
}
#else
char s[PATH_MAX+1];
int len = readlink(link.nativeFilePath().constData(), s, PATH_MAX);
#endif
if (len > 0) {
QString ret;
if (!data.hasFlags(QFileSystemMetaData::DirectoryType))
fillMetaData(link, data, QFileSystemMetaData::DirectoryType);
if (data.isDirectory() && s[0] != '/') {
QDir parent(link.filePath());
parent.cdUp();
ret = parent.path();
if (!ret.isEmpty() && !ret.endsWith(QLatin1Char('/')))
ret += QLatin1Char('/');
}
s[len] = '\0';
ret += QFile::decodeName(QByteArray(s));
#if defined(__GLIBC__) && !defined(PATH_MAX)
::free(s);
#endif
if (!ret.startsWith(QLatin1Char('/'))) {
if (link.filePath().startsWith(QLatin1Char('/'))) {
ret.prepend(link.filePath().left(link.filePath().lastIndexOf(QLatin1Char('/')))
+ QLatin1Char('/'));
} else {
ret.prepend(QDir::currentPath() + QLatin1Char('/'));
}
}
ret = QDir::cleanPath(ret);
if (ret.size() > 1 && ret.endsWith(QLatin1Char('/')))
ret.chop(1);
return QFileSystemEntry(ret);
}
#if !defined(QWS) && !defined(Q_WS_QPA) && defined(Q_OS_MAC)
{
FSRef fref;
if (FSPathMakeRef((const UInt8 *)QFile::encodeName(QDir::cleanPath(link.filePath())).data(), &fref, 0) == noErr) {
// TODO get the meta data info from the QFileSystemMetaData object
Boolean isAlias, isFolder;
if (FSResolveAliasFile(&fref, true, &isFolder, &isAlias) == noErr && isAlias) {
AliasHandle alias;
if (FSNewAlias(0, &fref, &alias) == noErr && alias) {
QCFString cfstr;
if (FSCopyAliasInfo(alias, 0, 0, &cfstr, 0, 0) == noErr)
return QFileSystemEntry(QCFString::toQString(cfstr));
}
}
}
}
#endif
return QFileSystemEntry();
}
//static
QFileSystemEntry QFileSystemEngine::getLinkTarget(const QFileSystemEntry &link, QFileSystemMetaData &data)
{
#if defined(__GLIBC__) && !defined(PATH_MAX)
#define PATH_CHUNK_SIZE 256
char *s = 0;
int len = -1;
int size = PATH_CHUNK_SIZE;
while (1) {
s = (char *) ::realloc(s, size);
Q_CHECK_PTR(s);
len = ::readlink(link.nativeFilePath().constData(), s, size);
if (len < 0) {
::free(s);
break;
}
if (len < size) {
break;
}
size *= 2;
}
#else
char s[PATH_MAX+1];
int len = readlink(link.nativeFilePath().constData(), s, PATH_MAX);
#endif
if (len > 0) {
QString ret;
if (!data.hasFlags(QFileSystemMetaData::DirectoryType))
fillMetaData(link, data, QFileSystemMetaData::DirectoryType);
if (data.isDirectory() && s[0] != '/') {
QDir parent(link.filePath());
parent.cdUp();
ret = parent.path();
if (!ret.isEmpty() && !ret.endsWith(QLatin1Char('/')))
ret += QLatin1Char('/');
}
s[len] = '\0';
ret += QFile::decodeName(QByteArray(s));
#if defined(__GLIBC__) && !defined(PATH_MAX)
::free(s);
#endif
if (!ret.startsWith(QLatin1Char('/'))) {
if (link.filePath().startsWith(QLatin1Char('/'))) {
ret.prepend(link.filePath().left(link.filePath().lastIndexOf(QLatin1Char('/')))
+ QLatin1Char('/'));
} else {
ret.prepend(QDir::currentPath() + QLatin1Char('/'));
}
}
ret = QDir::cleanPath(ret);
if (ret.size() > 1 && ret.endsWith(QLatin1Char('/')))
ret.chop(1);
return QFileSystemEntry(ret);
}
#if defined(Q_OS_DARWIN)
{
QCFString path = CFStringCreateWithFileSystemRepresentation(0,
QFile::encodeName(QDir::cleanPath(link.filePath())).data());
if (!path)
return QFileSystemEntry();
QCFType<CFURLRef> url = CFURLCreateWithFileSystemPath(0, path, kCFURLPOSIXPathStyle,
data.hasFlags(QFileSystemMetaData::DirectoryType));
if (!url)
return QFileSystemEntry();
QCFType<CFDataRef> bookmarkData = CFURLCreateBookmarkDataFromFile(0, url, NULL);
if (!bookmarkData)
return QFileSystemEntry();
QCFType<CFURLRef> resolvedUrl = CFURLCreateByResolvingBookmarkData(0,
bookmarkData,
(CFURLBookmarkResolutionOptions)(kCFBookmarkResolutionWithoutUIMask
| kCFBookmarkResolutionWithoutMountingMask), NULL, NULL, NULL, NULL);
if (!resolvedUrl)
return QFileSystemEntry();
QCFString cfstr(CFURLCopyFileSystemPath(resolvedUrl, kCFURLPOSIXPathStyle));
if (!cfstr)
return QFileSystemEntry();
return QFileSystemEntry(QCFString::toQString(cfstr));
}
#endif
return QFileSystemEntry();
}
