diff options
Diffstat (limited to 'zen/file_handling.cpp')
| -rw-r--r-- | zen/file_handling.cpp | 54 |
1 files changed, 51 insertions, 3 deletions
diff --git a/zen/file_handling.cpp b/zen/file_handling.cpp index 334128d9..dd5276a4 100644 --- a/zen/file_handling.cpp +++ b/zen/file_handling.cpp @@ -1,7 +1,7 @@ // ************************************************************************** // * This file is part of the FreeFileSync project. It is distributed under * // * GNU General Public License: http://www.gnu.org/licenses/gpl.html * -// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de) * +// * Copyright (C) ZenJu (zhnmju123 AT gmx DOT de) - All Rights Reserved * // ************************************************************************** #include "file_handling.h" @@ -910,6 +910,53 @@ void zen::setFileTime(const Zstring& filename, const Int64& modificationTime, Pr } +bool zen::supportsPermissions(const Zstring& dirname) //throw FileError +{ +#ifdef FFS_WIN + const HANDLE hDir = ::CreateFile(zen::applyLongPathPrefix(dirname).c_str(), + 0, + FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, + NULL, + OPEN_EXISTING, + FILE_FLAG_BACKUP_SEMANTICS, // | FILE_FLAG_OPEN_REPARSE_POINT -> follow symlinks + NULL); + if (hDir == INVALID_HANDLE_VALUE) + throw FileError(_("Error reading file attributes:") + L"\n\"" + dirname + L"\"" + L"\n\n" + getLastErrorFormatted()); + ZEN_ON_BLOCK_EXIT(::CloseHandle(hDir)); + + //dynamically load windows API function (existing since Windows XP) + typedef BOOL (WINAPI* GetVolumeInformationByHandleWFun)(HANDLE hFile, + LPWSTR lpVolumeNameBuffer, + DWORD nVolumeNameSize, + LPDWORD lpVolumeSerialNumber, + LPDWORD lpMaximumComponentLength, + LPDWORD lpFileSystemFlags, + LPWSTR lpFileSystemNameBuffer, + DWORD nFileSystemNameSize); + + const SysDllFun<GetVolumeInformationByHandleWFun> getVolumeInformationByHandleW(L"kernel32.dll", "GetVolumeInformationByHandleW"); + if (!getVolumeInformationByHandleW) + throw FileError(_("Error loading library function:") + L"\n\"" + L"GetVolumeInformationByHandleW" + L"\""); + + DWORD fileSystemFlags = 0; + if (!getVolumeInformationByHandleW(hDir, //__in HANDLE hFile, + NULL, //__out_opt LPTSTR lpVolumeNameBuffer, + 0, //__in DWORD nVolumeNameSize, + NULL, //__out_opt LPDWORD lpVolumeSerialNumber, + NULL, //__out_opt LPDWORD lpMaximumComponentLength, + &fileSystemFlags, //__out_opt LPDWORD lpFileSystemFlags, + NULL, //__out LPTSTR lpFileSystemNameBuffer, + 0)) //__in DWORD nFileSystemNameSize + throw FileError(_("Error reading file attributes:") + L"\n\"" + dirname + L"\"" + L"\n\n" + getLastErrorFormatted()); + + return (fileSystemFlags & FILE_PERSISTENT_ACLS) != 0; + +#elif defined FFS_LINUX + return true; +#endif +} + + namespace { #ifdef FFS_WIN @@ -928,7 +975,7 @@ Zstring getSymlinkTargetPath(const Zstring& symlink) //throw FileError ZEN_ON_BLOCK_EXIT(::CloseHandle(hDir)); //dynamically load windows API function - typedef DWORD (WINAPI *GetFinalPathNameByHandleWFunc)(HANDLE hFile, + typedef DWORD (WINAPI* GetFinalPathNameByHandleWFunc)(HANDLE hFile, LPTSTR lpszFilePath, DWORD cchFilePath, DWORD dwFlags); @@ -1026,6 +1073,7 @@ void copyObjectPermissions(const Zstring& source, const Zstring& target, ProcSym } //in contrast to ::SetSecurityInfo(), ::SetFileSecurity() seems to honor the "inherit DACL/SACL" flags + //CAVEAT: if a file system does not support ACLs, GetFileSecurity() will return successfully with a *valid* security descriptor containing *no* ACL entries! //NOTE: ::GetFileSecurity()/::SetFileSecurity() do NOT follow Symlinks! const Zstring sourceResolved = procSl == SYMLINK_FOLLOW && symlinkExists(source) ? getSymlinkTargetPath(source) : source; @@ -1336,7 +1384,7 @@ void zen::copySymlink(const Zstring& sourceLink, const Zstring& targetLink, bool }(); //dynamically load windows API function - typedef BOOLEAN (WINAPI *CreateSymbolicLinkFunc)(LPCTSTR lpSymlinkFileName, LPCTSTR lpTargetFileName, DWORD dwFlags); + typedef BOOLEAN (WINAPI* CreateSymbolicLinkFunc)(LPCTSTR lpSymlinkFileName, LPCTSTR lpTargetFileName, DWORD dwFlags); const SysDllFun<CreateSymbolicLinkFunc> createSymbolicLink(L"kernel32.dll", "CreateSymbolicLinkW"); if (!createSymbolicLink) |