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[RTL]: Clarify what RtlGetLongestNtPathLength returns instead of using "+9" as a magic constant.

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svn path=/trunk/; revision=52623
This commit is contained in:
Alex Ionescu 2011-07-11 00:38:34 +00:00
parent 642d0d6141
commit 2507c181d0
1 changed files with 12 additions and 2 deletions
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14
reactos/lib/rtl/path.c
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@ -28,6 +28,8 @@ static const WCHAR DeviceRootW[] = L"\\\\.\\";
static const UNICODE_STRING _condev = RTL_CONSTANT_STRING(L"\\\\.\\CON");
static const UNICODE_STRING _unc = RTL_CONSTANT_STRING(L"\\??\\UNC\\");
static const UNICODE_STRING _lpt = RTL_CONSTANT_STRING(L"LPT");
static const UNICODE_STRING _com = RTL_CONSTANT_STRING(L"COM");
@ -46,9 +48,17 @@ static const UNICODE_STRING _nul = RTL_CONSTANT_STRING(L"NUL");
/*
* @implemented
*/
ULONG NTAPI RtlGetLongestNtPathLength (VOID)
ULONG
NTAPI
RtlGetLongestNtPathLength(VOID)
{
return (MAX_PATH + 9);
/*
* The longest NT path is a DOS path that actually sits on a UNC path (ie:
* a mapped network drive), which is accessed through the DOS Global?? path.
* This is, and has always been equal to, 269 characters, except in Wine
* which claims this is 277. Go figure.
*/
return (MAX_PATH + _unc.Length + sizeof(ANSI_NULL));
}