diff options
| -rw-r--r-- | src/corelib/io/qfsfileengine_p.h | 1 | ||||
| -rw-r--r-- | src/corelib/io/qfsfileengine_win.cpp | 85 |
2 files changed, 76 insertions, 10 deletions
diff --git a/src/corelib/io/qfsfileengine_p.h b/src/corelib/io/qfsfileengine_p.h index 3c1e7e0..b245dca 100644 --- a/src/corelib/io/qfsfileengine_p.h +++ b/src/corelib/io/qfsfileengine_p.h @@ -162,7 +162,6 @@ protected: #if defined(Q_OS_WIN32) || defined(Q_OS_WINCE) QAbstractFileEngine::FileFlags getPermissions() const; - QString getLink() const; #endif }; diff --git a/src/corelib/io/qfsfileengine_win.cpp b/src/corelib/io/qfsfileengine_win.cpp index 7b08767..0a5c90e 100644 --- a/src/corelib/io/qfsfileengine_win.cpp +++ b/src/corelib/io/qfsfileengine_win.cpp @@ -55,6 +55,7 @@ #if !defined(Q_OS_WINCE) # include <sys/types.h> # include <direct.h> +# include <winioctl.h> #else # include <types.h> #endif @@ -88,6 +89,37 @@ typedef INT_PTR intptr_t; # define INVALID_FILE_ATTRIBUTES (DWORD (-1)) #endif +#if !defined(REPARSE_DATA_BUFFER_HEADER_SIZE) && !defined(Q_OS_WINCE) +typedef struct _REPARSE_DATA_BUFFER { + ULONG ReparseTag; + USHORT ReparseDataLength; + USHORT Reserved; + union { + struct { + USHORT SubstituteNameOffset; + USHORT SubstituteNameLength; + USHORT PrintNameOffset; + USHORT PrintNameLength; + ULONG Flags; + WCHAR PathBuffer[1]; + } SymbolicLinkReparseBuffer; + struct { + USHORT SubstituteNameOffset; + USHORT SubstituteNameLength; + USHORT PrintNameOffset; + USHORT PrintNameLength; + WCHAR PathBuffer[1]; + } MountPointReparseBuffer; + struct { + UCHAR DataBuffer[1]; + } GenericReparseBuffer; + }; +} REPARSE_DATA_BUFFER, *PREPARSE_DATA_BUFFER; + +# define REPARSE_DATA_BUFFER_HEADER_SIZE FIELD_OFFSET(REPARSE_DATA_BUFFER, GenericReparseBuffer) +# define MAXIMUM_REPARSE_DATA_BUFFER_SIZE 16384 +#endif + QT_BEGIN_NAMESPACE static QString readLink(const QString &link); @@ -1210,6 +1242,44 @@ bool QFSFileEnginePrivate::doStat() const } +static QString readSymLink(const QString &link) +{ + QString result; +#if !defined(Q_OS_WINCE) + HANDLE handle = CreateFile((wchar_t*)QFSFileEnginePrivate::longFileName(link).utf16(), + FILE_READ_EA, + FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, + 0, + OPEN_EXISTING, + FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, + 0); + if (handle != INVALID_HANDLE_VALUE) { + DWORD bufsize = MAXIMUM_REPARSE_DATA_BUFFER_SIZE; + REPARSE_DATA_BUFFER *rdb = (REPARSE_DATA_BUFFER*)qMalloc(bufsize); + DWORD retsize = 0; + if (::DeviceIoControl(handle, FSCTL_GET_REPARSE_POINT, 0, 0, rdb, bufsize, &retsize, 0)) { + if (rdb->ReparseTag == IO_REPARSE_TAG_MOUNT_POINT) { + int length = rdb->MountPointReparseBuffer.SubstituteNameLength / sizeof(wchar_t); + int offset = rdb->MountPointReparseBuffer.SubstituteNameOffset / sizeof(wchar_t); + const wchar_t* PathBuffer = &rdb->MountPointReparseBuffer.PathBuffer[offset]; + result = QString::fromWCharArray(PathBuffer, length); + } else { + int length = rdb->SymbolicLinkReparseBuffer.SubstituteNameLength / sizeof(wchar_t); + int offset = rdb->SymbolicLinkReparseBuffer.SubstituteNameOffset / sizeof(wchar_t); + const wchar_t* PathBuffer = &rdb->SymbolicLinkReparseBuffer.PathBuffer[offset]; + result = QString::fromWCharArray(PathBuffer, length); + } + // cut-off "//?/" and "/??/" + if (result.size() > 4 && result.at(0) == QLatin1Char('\\') && result.at(2) == QLatin1Char('?') && result.at(3) == QLatin1Char('\\')) + result = result.mid(4); + } + qFree(rdb); + CloseHandle(handle); + } +#endif // Q_OS_WINCE + return result; +} + static QString readLink(const QString &link) { #if !defined(Q_OS_WINCE) @@ -1267,14 +1337,6 @@ static QString readLink(const QString &link) #endif // Q_OS_WINCE } -/*! - \internal -*/ -QString QFSFileEnginePrivate::getLink() const -{ - return readLink(filePath); -} - bool QFSFileEngine::link(const QString &newName) { #if !defined(Q_OS_WINCE) @@ -1621,7 +1683,12 @@ QString QFSFileEngine::fileName(FileName file) const } return ret; } else if(file == LinkName) { - return QDir::fromNativeSeparators(d->getLink()); + QString ret; + if (d->filePath.endsWith(QLatin1String(".lnk"))) + ret = readLink(d->filePath); + else if (d->doStat() && d->isSymlink()) + ret = readSymLink(d->filePath); + return QDir::fromNativeSeparators(ret); } else if(file == BundleName) { return QString(); } |