newlib/winsup/utils/wide_path.h
Corinna Vinschen 26fb7ef5e4 * wide_path.h (class wide_path): New class to convert Windows path
to WCHAR win32 path, including long path conversion if necessary.
	* cygcheck.cc: Use class wide_path throughout to call Win32 functions
	taking potentially long filenames.
	(display_error): Use snprintf rather than sprintf.
	(display_error_fmt): Ditto.
	(dump_sysinfo): Use FindFirstFileW/FindNextFileW.
	* cygpath.cc: Use class wide_path throughout to call Win32 functions
	taking potentially long filenames.
	(get_device_name): Raise buffer size to take long pathnames.
	(get_short_paths): Convert to using GetShortPathNameW.
	(get_short_name): Ditto.
	(get_long_path_name_w32impl): Convert to equivalent of GetLongPathNameW.
	(get_long_name): Convert to using GetLongPathNameW.
	(do_sysfolders): Raise buffer size for POSIX pathname to PATH_MAX.
	(do_pathconv): In case of POSIX->Win32 conversion, convert to wchar_t
	Win32 path name and drop long pathname prefix if possible.
	(main): Call setlocale to accommodate wide char/multibyte conversions.
2009-03-14 14:56:20 +00:00

44 lines
1.0 KiB
C++

/* wide_path.h -- Define class wide_path to convert multibyte win32 path
to wchar_t Win32 path including long path prefix if
necessary.
Copyright 2009 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <stdlib.h>
#include <wchar.h>
class wide_path
{
wchar_t *wp;
public:
wide_path () : wp (NULL) {}
wide_path (const char *mb_path)
{
int len = mbstowcs (NULL, mb_path, 0) + 1;
wp = (wchar_t *) malloc ((len + 6) * sizeof (wchar_t));
wchar_t *wp_p = wp;
if (len >= MAX_PATH && strncmp (mb_path, "\\\\?\\", 4) != 0)
{
wcscpy (wp_p, L"\\\\?\\");
wp_p += 4;
if (strncmp (mb_path, "\\\\", 2) == 0)
{
wcscpy (wp_p, L"UNC");
wp_p += 3;
++mb_path;
--len;
}
}
mbstowcs (wp_p, mb_path, len);
}
~wide_path () { if (wp) free (wp); }
operator const wchar_t *() const { return wp; }
};