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Diffstat (limited to 'shared/long_path_prefix.h')
-rw-r--r-- | shared/long_path_prefix.h | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/shared/long_path_prefix.h b/shared/long_path_prefix.h deleted file mode 100644 index ca6961a9..00000000 --- a/shared/long_path_prefix.h +++ /dev/null @@ -1,104 +0,0 @@ -// ************************************************************************** -// * 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) * -// ************************************************************************** - -#ifndef LONGPATHPREFIX_H_INCLUDED -#define LONGPATHPREFIX_H_INCLUDED - -#include "zstring.h" - -#ifndef FFS_WIN -#error use in windows build only! -#endif - -namespace zen -{ -//handle filenames longer-equal 260 (== MAX_PATH) characters by applying \\?\-prefix (Reference: http://msdn.microsoft.com/en-us/library/aa365247(VS.85).aspx#maxpath) -/* -1. path must be absolute -2. if path is smaller than MAX_PATH nothing is changed! -3. path may already contain \\?\-prefix -*/ -Zstring applyLongPathPrefix(const Zstring& path); //throw() -Zstring applyLongPathPrefixCreateDir(const Zstring& path); //throw() -> special rule for ::CreateDirectoryEx(): MAX_PATH - 12(=^ 8.3 filename) is threshold - -Zstring removeLongPathPrefix(const Zstring& path); //throw() -} - - - - - - - - - - - - - - - - - - - - - - -//################## implementation ################## - -//there are two flavors of long path prefix: one for UNC paths, one for regular paths -const Zstring LONG_PATH_PREFIX = Zstr("\\\\?\\"); -const Zstring LONG_PATH_PREFIX_UNC = Zstr("\\\\?\\UNC"); - -template <size_t max_path> -inline -Zstring applyLongPathPrefixImpl(const Zstring& path) -{ - assert(!path.empty()); //nicely check almost all WinAPI accesses! - if (path.length() >= max_path && //maximum allowed path length without prefix is (MAX_PATH - 1) - !path.StartsWith(LONG_PATH_PREFIX)) - { - if (path.StartsWith(Zstr("\\\\"))) //UNC-name, e.g. \\zenju-pc\Users - return LONG_PATH_PREFIX_UNC + path.AfterFirst(Zchar('\\')); //convert to \\?\UNC\zenju-pc\Users - else - return LONG_PATH_PREFIX + path; //prepend \\?\ prefix - } - - return path; //fallback -} - - -inline -Zstring zen::applyLongPathPrefix(const Zstring& path) -{ - return applyLongPathPrefixImpl<MAX_PATH>(path); -} - - -inline -Zstring zen::applyLongPathPrefixCreateDir(const Zstring& path) //throw() -{ - //special rule for ::CreateDirectoryEx(): MAX_PATH - 12(=^ 8.3 filename) is threshold - return applyLongPathPrefixImpl < MAX_PATH - 12 > (path); -} - - -inline -Zstring zen::removeLongPathPrefix(const Zstring& path) //throw() -{ - if (path.StartsWith(LONG_PATH_PREFIX)) - { - if (path.StartsWith(LONG_PATH_PREFIX_UNC)) //UNC-name - return Zstring(path).Replace(LONG_PATH_PREFIX_UNC, Zstr("\\"), false); - else - return Zstring(path).Replace(LONG_PATH_PREFIX, Zstr(""), false); - } - - return path; //fallback -} - -#endif //LONGPATHPREFIX_H_INCLUDED |