mirror of
https://github.com/reactos/reactos.git
synced 2024-10-30 19:41:57 +00:00
9ea495ba33
svn path=/branches/header-work/; revision=45691
960 lines
25 KiB
C
960 lines
25 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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* FILE: lib/rtl/path.c
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* PURPOSE: Path and current directory functions
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* PROGRAMMERS:
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*/
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/* INCLUDES *****************************************************************/
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#include <rtl.h>
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#define NDEBUG
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#include <debug.h>
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/* DEFINITONS and MACROS ******************************************************/
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#define MAX_PFX_SIZE 16
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#define IS_PATH_SEPARATOR(x) (((x)==L'\\')||((x)==L'/'))
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/* GLOBALS ********************************************************************/
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static const WCHAR DeviceRootW[] = L"\\\\.\\";
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static const UNICODE_STRING _condev = RTL_CONSTANT_STRING(L"\\\\.\\CON");
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static const UNICODE_STRING _lpt = RTL_CONSTANT_STRING(L"LPT");
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static const UNICODE_STRING _com = RTL_CONSTANT_STRING(L"COM");
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static const UNICODE_STRING _prn = RTL_CONSTANT_STRING(L"PRN");
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static const UNICODE_STRING _aux = RTL_CONSTANT_STRING(L"AUX");
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static const UNICODE_STRING _con = RTL_CONSTANT_STRING(L"CON");
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static const UNICODE_STRING _nul = RTL_CONSTANT_STRING(L"NUL");
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/* FUNCTIONS *****************************************************************/
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/*
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* @implemented
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*/
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ULONG NTAPI RtlGetLongestNtPathLength (VOID)
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{
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return (MAX_PATH + 9);
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}
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/*
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* @implemented
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*
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*/
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ULONG NTAPI
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RtlDetermineDosPathNameType_U(PCWSTR Path)
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{
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DPRINT("RtlDetermineDosPathNameType_U %S\n", Path);
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if (Path == NULL)
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{
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return RtlPathTypeUnknown;
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}
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if (IS_PATH_SEPARATOR(Path[0]))
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{
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if (!IS_PATH_SEPARATOR(Path[1])) return RtlPathTypeRooted; /* \xxx */
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if (Path[2] != L'.') return RtlPathTypeUncAbsolute; /* \\xxx */
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if (IS_PATH_SEPARATOR(Path[3])) return RtlPathTypeLocalDevice; /* \\.\xxx */
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if (Path[3]) return RtlPathTypeUncAbsolute; /* \\.xxxx */
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return RtlPathTypeRootLocalDevice; /* \\. */
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}
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else
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{
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if (!Path[0] || Path[1] != L':') return RtlPathTypeRelative; /* xxx */
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if (IS_PATH_SEPARATOR(Path[2])) return RtlPathTypeDriveAbsolute; /* x:\xxx */
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return RtlPathTypeDriveRelative; /* x:xxx */
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}
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}
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/* returns 0 if name is not valid DOS device name, or DWORD with
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* offset in bytes to DOS device name from beginning of buffer in high word
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* and size in bytes of DOS device name in low word */
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/*
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* @implemented
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*/
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ULONG NTAPI
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RtlIsDosDeviceName_U(PWSTR dos_name)
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{
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static const WCHAR consoleW[] = {'\\','\\','.','\\','C','O','N',0};
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static const WCHAR auxW[3] = {'A','U','X'};
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static const WCHAR comW[3] = {'C','O','M'};
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static const WCHAR conW[3] = {'C','O','N'};
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static const WCHAR lptW[3] = {'L','P','T'};
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static const WCHAR nulW[3] = {'N','U','L'};
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static const WCHAR prnW[3] = {'P','R','N'};
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const WCHAR *start, *end, *p;
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switch(RtlDetermineDosPathNameType_U( dos_name ))
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{
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case RtlPathTypeUnknown:
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case RtlPathTypeUncAbsolute:
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return 0;
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case RtlPathTypeLocalDevice:
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if (!_wcsicmp( dos_name, consoleW ))
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return MAKELONG( sizeof(conW), 4 * sizeof(WCHAR) ); /* 4 is length of \\.\ prefix */
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return 0;
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default:
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break;
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}
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end = dos_name + wcslen(dos_name) - 1;
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while (end >= dos_name && *end == ':') end--; /* remove all trailing ':' */
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/* find start of file name */
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for (start = end; start >= dos_name; start--)
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{
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if (IS_PATH_SEPARATOR(start[0])) break;
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/* check for ':' but ignore if before extension (for things like NUL:.txt) */
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if (start[0] == ':' && start[1] != '.') break;
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}
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start++;
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/* remove extension */
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if ((p = wcschr( start, '.' )))
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{
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end = p - 1;
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if (end >= dos_name && *end == ':') end--; /* remove trailing ':' before extension */
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}
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/* remove trailing spaces */
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while (end >= dos_name && *end == ' ') end--;
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/* now we have a potential device name between start and end, check it */
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switch(end - start + 1)
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{
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case 3:
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if (_wcsnicmp( start, auxW, 3 ) &&
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_wcsnicmp( start, conW, 3 ) &&
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_wcsnicmp( start, nulW, 3 ) &&
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_wcsnicmp( start, prnW, 3 )) break;
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return MAKELONG( 3 * sizeof(WCHAR), (start - dos_name) * sizeof(WCHAR) );
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case 4:
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if (_wcsnicmp( start, comW, 3 ) && _wcsnicmp( start, lptW, 3 )) break;
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if (*end <= '0' || *end > '9') break;
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return MAKELONG( 4 * sizeof(WCHAR), (start - dos_name) * sizeof(WCHAR) );
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default: /* can't match anything */
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break;
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}
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return 0;
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}
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/*
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* @implemented
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*/
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ULONG NTAPI
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RtlGetCurrentDirectory_U(ULONG MaximumLength,
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PWSTR Buffer)
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{
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ULONG Length;
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PCURDIR cd;
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DPRINT ("RtlGetCurrentDirectory %lu %p\n", MaximumLength, Buffer);
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RtlAcquirePebLock();
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cd = (PCURDIR)&(NtCurrentPeb ()->ProcessParameters->CurrentDirectory.DosPath);
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Length = cd->DosPath.Length / sizeof(WCHAR);
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if (cd->DosPath.Buffer[Length - 1] == L'\\' &&
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cd->DosPath.Buffer[Length - 2] != L':')
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Length--;
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DPRINT ("cd->DosPath.Buffer %S Length %lu\n",
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cd->DosPath.Buffer, Length);
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if (MaximumLength / sizeof(WCHAR) > Length)
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{
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memcpy (Buffer,
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cd->DosPath.Buffer,
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Length * sizeof(WCHAR));
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Buffer[Length] = 0;
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}
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else
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{
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Length++;
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}
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RtlReleasePebLock ();
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DPRINT ("CurrentDirectory %S\n", Buffer);
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return (Length * sizeof(WCHAR));
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}
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/*
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* @implemented
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*/
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NTSTATUS NTAPI
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RtlSetCurrentDirectory_U(PUNICODE_STRING dir)
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{
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UNICODE_STRING full;
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FILE_FS_DEVICE_INFORMATION device_info;
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OBJECT_ATTRIBUTES Attr;
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IO_STATUS_BLOCK iosb;
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PCURDIR cd;
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NTSTATUS Status;
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ULONG size;
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HANDLE handle = NULL;
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PWSTR ptr;
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DPRINT("RtlSetCurrentDirectory %wZ\n", dir);
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RtlAcquirePebLock ();
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cd = (PCURDIR)&NtCurrentPeb ()->ProcessParameters->CurrentDirectory.DosPath;
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if (!RtlDosPathNameToNtPathName_U (dir->Buffer, &full, 0, 0))
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{
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RtlReleasePebLock ();
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return STATUS_OBJECT_NAME_INVALID;
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}
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DPRINT("RtlSetCurrentDirectory: full %wZ\n",&full);
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InitializeObjectAttributes (&Attr,
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&full,
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OBJ_CASE_INSENSITIVE | OBJ_INHERIT,
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NULL,
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NULL);
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Status = ZwOpenFile (&handle,
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SYNCHRONIZE | FILE_TRAVERSE,
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&Attr,
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&iosb,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT);
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if (!NT_SUCCESS(Status))
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{
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RtlFreeUnicodeString( &full);
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RtlReleasePebLock ();
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return Status;
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}
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/* don't keep the directory handle open on removable media */
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if (NT_SUCCESS(ZwQueryVolumeInformationFile( handle, &iosb, &device_info,
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sizeof(device_info), FileFsDeviceInformation )) &&
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(device_info.Characteristics & FILE_REMOVABLE_MEDIA))
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{
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DPRINT1("don't keep the directory handle open on removable media\n");
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ZwClose( handle );
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handle = 0;
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}
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if (cd->Handle)
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ZwClose(cd->Handle);
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cd->Handle = handle;
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/* append trailing \ if missing */
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size = full.Length / sizeof(WCHAR);
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ptr = full.Buffer;
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ptr += 4; /* skip \??\ prefix */
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size -= 4;
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/* This is ok because RtlDosPathNameToNtPathName_U returns a nullterminated string.
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* So the nullterm is replaced with \
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* -Gunnar
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*/
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if (size && ptr[size - 1] != '\\') ptr[size++] = '\\';
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memcpy( cd->DosPath.Buffer, ptr, size * sizeof(WCHAR));
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cd->DosPath.Buffer[size] = 0;
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cd->DosPath.Length = size * sizeof(WCHAR);
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RtlFreeUnicodeString( &full);
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RtlReleasePebLock();
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return STATUS_SUCCESS;
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}
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/******************************************************************
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* collapse_path
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*
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* Helper for RtlGetFullPathName_U.
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* 1) Convert slashes into backslashes
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* 2) Get rid of duplicate backslashes
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* 3) Get rid of . and .. components in the path.
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*/
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static __inline void collapse_path( WCHAR *path, UINT mark )
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{
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WCHAR *p, *next;
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/* convert every / into a \ */
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for (p = path; *p; p++) if (*p == '/') *p = '\\';
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/* collapse duplicate backslashes */
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next = path + max( 1, mark );
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for (p = next; *p; p++) if (*p != '\\' || next[-1] != '\\') *next++ = *p;
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*next = 0;
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p = path + mark;
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while (*p)
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{
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if (*p == '.')
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{
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switch(p[1])
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{
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case '\\': /* .\ component */
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next = p + 2;
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memmove( p, next, (wcslen(next) + 1) * sizeof(WCHAR) );
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continue;
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case 0: /* final . */
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if (p > path + mark) p--;
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*p = 0;
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continue;
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case '.':
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if (p[2] == '\\') /* ..\ component */
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{
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next = p + 3;
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if (p > path + mark)
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{
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p--;
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while (p > path + mark && p[-1] != '\\') p--;
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}
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memmove( p, next, (wcslen(next) + 1) * sizeof(WCHAR) );
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continue;
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}
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else if (!p[2]) /* final .. */
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{
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if (p > path + mark)
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{
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p--;
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while (p > path + mark && p[-1] != '\\') p--;
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if (p > path + mark) p--;
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}
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*p = 0;
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continue;
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}
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break;
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}
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}
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/* skip to the next component */
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while (*p && *p != '\\') p++;
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if (*p == '\\')
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{
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/* remove last dot in previous dir name */
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if (p > path + mark && p[-1] == '.') memmove( p-1, p, (wcslen(p) + 1) * sizeof(WCHAR) );
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else p++;
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}
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}
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/* remove trailing spaces and dots (yes, Windows really does that, don't ask) */
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while (p > path + mark && (p[-1] == ' ' || p[-1] == '.')) p--;
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*p = 0;
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}
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/******************************************************************
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* skip_unc_prefix
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*
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* Skip the \\share\dir\ part of a file name. Helper for RtlGetFullPathName_U.
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*/
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static const WCHAR *skip_unc_prefix( const WCHAR *ptr )
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{
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ptr += 2;
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while (*ptr && !IS_PATH_SEPARATOR(*ptr)) ptr++; /* share name */
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while (IS_PATH_SEPARATOR(*ptr)) ptr++;
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while (*ptr && !IS_PATH_SEPARATOR(*ptr)) ptr++; /* dir name */
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while (IS_PATH_SEPARATOR(*ptr)) ptr++;
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return ptr;
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}
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/******************************************************************
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* get_full_path_helper
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*
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* Helper for RtlGetFullPathName_U
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* Note: name and buffer are allowed to point to the same memory spot
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*/
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static ULONG get_full_path_helper(
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LPCWSTR name,
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LPWSTR buffer,
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ULONG size)
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{
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ULONG reqsize = 0, mark = 0, dep = 0, deplen;
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RTL_PATH_TYPE type;
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LPWSTR ins_str = NULL;
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LPCWSTR ptr;
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const UNICODE_STRING* cd;
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WCHAR tmp[4];
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/* return error if name only consists of spaces */
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for (ptr = name; *ptr; ptr++) if (*ptr != ' ') break;
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if (!*ptr) return 0;
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RtlAcquirePebLock();
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//cd = &((PCURDIR)&NtCurrentTeb()->ProcessEnvironmentBlock->ProcessParameters->CurrentDirectory.DosPath)->DosPath;
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cd = &NtCurrentTeb()->ProcessEnvironmentBlock->ProcessParameters->CurrentDirectory.DosPath;
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switch (type = RtlDetermineDosPathNameType_U(name))
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{
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case RtlPathTypeUncAbsolute: /* \\foo */
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ptr = skip_unc_prefix( name );
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mark = (ptr - name);
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break;
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case RtlPathTypeLocalDevice: /* \\.\foo */
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mark = 4;
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break;
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case RtlPathTypeDriveAbsolute: /* c:\foo */
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reqsize = sizeof(WCHAR);
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tmp[0] = towupper(name[0]);
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ins_str = tmp;
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dep = 1;
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mark = 3;
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break;
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case RtlPathTypeDriveRelative: /* c:foo */
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dep = 2;
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if (towupper(name[0]) != towupper(cd->Buffer[0]) || cd->Buffer[1] != ':')
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{
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UNICODE_STRING var, val;
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tmp[0] = '=';
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tmp[1] = name[0];
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tmp[2] = ':';
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tmp[3] = '\0';
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var.Length = 3 * sizeof(WCHAR);
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var.MaximumLength = 4 * sizeof(WCHAR);
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var.Buffer = tmp;
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val.Length = 0;
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val.MaximumLength = size;
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val.Buffer = RtlAllocateHeap(RtlGetProcessHeap(), 0, size);
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if (val.Buffer == NULL)
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{
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reqsize = 0;
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goto done;
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}
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switch (RtlQueryEnvironmentVariable_U(NULL, &var, &val))
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{
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case STATUS_SUCCESS:
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/* FIXME: Win2k seems to check that the environment variable actually points
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* to an existing directory. If not, root of the drive is used
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* (this seems also to be the only spot in RtlGetFullPathName that the
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* existence of a part of a path is checked)
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*/
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/* fall thru */
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case STATUS_BUFFER_TOO_SMALL:
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reqsize = val.Length + sizeof(WCHAR); /* append trailing '\\' */
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val.Buffer[val.Length / sizeof(WCHAR)] = '\\';
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ins_str = val.Buffer;
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break;
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case STATUS_VARIABLE_NOT_FOUND:
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reqsize = 3 * sizeof(WCHAR);
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tmp[0] = name[0];
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tmp[1] = ':';
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tmp[2] = '\\';
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ins_str = tmp;
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break;
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default:
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DPRINT1("Unsupported status code\n");
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break;
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}
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mark = 3;
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break;
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}
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/* fall through */
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case RtlPathTypeRelative: /* foo */
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reqsize = cd->Length;
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ins_str = cd->Buffer;
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if (cd->Buffer[1] != ':')
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{
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ptr = skip_unc_prefix( cd->Buffer );
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mark = ptr - cd->Buffer;
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}
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else mark = 3;
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break;
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case RtlPathTypeRooted: /* \xxx */
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#ifdef __WINE__
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if (name[0] == '/') /* may be a Unix path */
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{
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const WCHAR *ptr = name;
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int drive = find_drive_root( &ptr );
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if (drive != -1)
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{
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reqsize = 3 * sizeof(WCHAR);
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tmp[0] = 'A' + drive;
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tmp[1] = ':';
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tmp[2] = '\\';
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ins_str = tmp;
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mark = 3;
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dep = ptr - name;
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break;
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}
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}
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#endif
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if (cd->Buffer[1] == ':')
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{
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reqsize = 2 * sizeof(WCHAR);
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tmp[0] = cd->Buffer[0];
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tmp[1] = ':';
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ins_str = tmp;
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mark = 3;
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}
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else
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{
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ptr = skip_unc_prefix( cd->Buffer );
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reqsize = (ptr - cd->Buffer) * sizeof(WCHAR);
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mark = reqsize / sizeof(WCHAR);
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ins_str = cd->Buffer;
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}
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break;
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case RtlPathTypeRootLocalDevice: /* \\. */
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reqsize = 4 * sizeof(WCHAR);
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dep = 3;
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tmp[0] = '\\';
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tmp[1] = '\\';
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tmp[2] = '.';
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tmp[3] = '\\';
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ins_str = tmp;
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mark = 4;
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break;
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|
|
case RtlPathTypeUnknown:
|
|
goto done;
|
|
}
|
|
|
|
/* enough space ? */
|
|
deplen = wcslen(name + dep) * sizeof(WCHAR);
|
|
if (reqsize + deplen + sizeof(WCHAR) > size)
|
|
{
|
|
/* not enough space, return need size (including terminating '\0') */
|
|
reqsize += deplen + sizeof(WCHAR);
|
|
goto done;
|
|
}
|
|
|
|
memmove(buffer + reqsize / sizeof(WCHAR), name + dep, deplen + sizeof(WCHAR));
|
|
if (reqsize) memcpy(buffer, ins_str, reqsize);
|
|
reqsize += deplen;
|
|
|
|
if (ins_str && ins_str != tmp && ins_str != cd->Buffer)
|
|
RtlFreeHeap(RtlGetProcessHeap(), 0, ins_str);
|
|
|
|
collapse_path( buffer, mark );
|
|
reqsize = wcslen(buffer) * sizeof(WCHAR);
|
|
|
|
done:
|
|
RtlReleasePebLock();
|
|
return reqsize;
|
|
}
|
|
|
|
|
|
/******************************************************************
|
|
* RtlGetFullPathName_U (NTDLL.@)
|
|
*
|
|
* Returns the number of bytes written to buffer (not including the
|
|
* terminating NULL) if the function succeeds, or the required number of bytes
|
|
* (including the terminating NULL) if the buffer is too small.
|
|
*
|
|
* file_part will point to the filename part inside buffer (except if we use
|
|
* DOS device name, in which case file_in_buf is NULL)
|
|
*
|
|
* @implemented
|
|
*/
|
|
ULONG NTAPI RtlGetFullPathName_U(
|
|
const WCHAR* name,
|
|
ULONG size,
|
|
WCHAR* buffer,
|
|
WCHAR** file_part)
|
|
{
|
|
WCHAR* ptr;
|
|
ULONG dosdev;
|
|
ULONG reqsize;
|
|
|
|
DPRINT("RtlGetFullPathName_U(%S %lu %p %p)\n", name, size, buffer, file_part);
|
|
|
|
if (!name || !*name) return 0;
|
|
|
|
if (file_part) *file_part = NULL;
|
|
|
|
/* check for DOS device name */
|
|
dosdev = RtlIsDosDeviceName_U((WCHAR*)name);
|
|
if (dosdev)
|
|
{
|
|
DWORD offset = HIWORD(dosdev) / sizeof(WCHAR); /* get it in WCHARs, not bytes */
|
|
DWORD sz = LOWORD(dosdev); /* in bytes */
|
|
|
|
if (8 + sz + 2 > size) return sz + 10;
|
|
wcscpy(buffer, DeviceRootW);
|
|
memmove(buffer + 4, name + offset, sz);
|
|
buffer[4 + sz / sizeof(WCHAR)] = '\0';
|
|
/* file_part isn't set in this case */
|
|
return sz + 8;
|
|
}
|
|
|
|
reqsize = get_full_path_helper(name, buffer, size);
|
|
if (!reqsize) return 0;
|
|
if (reqsize > size)
|
|
{
|
|
LPWSTR tmp = RtlAllocateHeap(RtlGetProcessHeap(), 0, reqsize);
|
|
if (tmp == NULL)
|
|
return 0;
|
|
reqsize = get_full_path_helper(name, tmp, reqsize);
|
|
if (reqsize > size) /* it may have worked the second time */
|
|
{
|
|
RtlFreeHeap(RtlGetProcessHeap(), 0, tmp);
|
|
return reqsize + sizeof(WCHAR);
|
|
}
|
|
memcpy( buffer, tmp, reqsize + sizeof(WCHAR) );
|
|
RtlFreeHeap(RtlGetProcessHeap(), 0, tmp);
|
|
}
|
|
|
|
/* find file part */
|
|
if (file_part && (ptr = wcsrchr(buffer, '\\')) != NULL && ptr >= buffer + 2 && *++ptr)
|
|
*file_part = ptr;
|
|
return reqsize;
|
|
}
|
|
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
BOOLEAN NTAPI
|
|
RtlDosPathNameToNtPathName_U(IN PCWSTR DosPathName,
|
|
OUT PUNICODE_STRING NtPathName,
|
|
OUT PCWSTR *NtFileNamePart,
|
|
OUT CURDIR *DirectoryInfo)
|
|
{
|
|
UNICODE_STRING us;
|
|
PCURDIR cd;
|
|
ULONG Type;
|
|
ULONG Size;
|
|
ULONG Length;
|
|
ULONG tmpLength;
|
|
ULONG Offset;
|
|
WCHAR fullname[MAX_PATH + 1];
|
|
PWSTR Buffer = NULL;
|
|
|
|
RtlInitUnicodeString (&us, DosPathName);
|
|
if (us.Length > 8)
|
|
{
|
|
Buffer = us.Buffer;
|
|
/* check for "\\?\" - allows to use very long filenames ( up to 32k ) */
|
|
if (Buffer[0] == L'\\' && Buffer[1] == L'\\' &&
|
|
Buffer[2] == L'?' && Buffer[3] == L'\\')
|
|
{
|
|
/* allocate the new string and simply copy it */
|
|
NtPathName->Length = us.Length;
|
|
NtPathName->MaximumLength = us.Length + sizeof(WCHAR);
|
|
NtPathName->Buffer = RtlAllocateHeap(RtlGetProcessHeap(),
|
|
0,
|
|
NtPathName->MaximumLength);
|
|
if (NtPathName->Buffer == NULL)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
/* copy the string */
|
|
RtlCopyMemory(NtPathName->Buffer,
|
|
us.Buffer,
|
|
NtPathName->Length);
|
|
NtPathName->Buffer[us.Length / sizeof(WCHAR)] = L'\0';
|
|
|
|
/* change the \\?\ prefix to \??\ */
|
|
NtPathName->Buffer[1] = L'?';
|
|
|
|
if (NtFileNamePart != NULL)
|
|
{
|
|
PWSTR FilePart = NULL;
|
|
PWSTR s;
|
|
|
|
/* try to find the last separator */
|
|
s = NtPathName->Buffer + (NtPathName->Length / sizeof(WCHAR));
|
|
while (s != NtPathName->Buffer)
|
|
{
|
|
if (*s == L'\\')
|
|
{
|
|
FilePart = s + 1;
|
|
break;
|
|
}
|
|
s--;
|
|
}
|
|
|
|
*NtFileNamePart = FilePart;
|
|
}
|
|
|
|
if (DirectoryInfo != NULL)
|
|
{
|
|
DirectoryInfo->DosPath.Length = 0;
|
|
DirectoryInfo->DosPath.MaximumLength = 0;
|
|
DirectoryInfo->DosPath.Buffer = NULL;
|
|
DirectoryInfo->Handle = NULL;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
Buffer = RtlAllocateHeap (RtlGetProcessHeap (),
|
|
0,
|
|
sizeof( fullname ) + MAX_PFX_SIZE);
|
|
if (Buffer == NULL)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
RtlAcquirePebLock ();
|
|
|
|
Size = RtlGetFullPathName_U (DosPathName,
|
|
sizeof(fullname),
|
|
fullname,
|
|
(PWSTR*)NtFileNamePart);
|
|
if (Size == 0 || Size > MAX_PATH * sizeof(WCHAR))
|
|
{
|
|
RtlFreeHeap (RtlGetProcessHeap (),
|
|
0,
|
|
Buffer);
|
|
RtlReleasePebLock ();
|
|
return FALSE;
|
|
}
|
|
|
|
/* Set NT prefix */
|
|
Offset = 0;
|
|
memcpy (Buffer, L"\\??\\", 4 * sizeof(WCHAR));
|
|
tmpLength = 4;
|
|
|
|
Type = RtlDetermineDosPathNameType_U (fullname);
|
|
switch (Type)
|
|
{
|
|
case 1:
|
|
memcpy (Buffer + tmpLength, L"UNC\\", 4 * sizeof(WCHAR));
|
|
tmpLength += 4;
|
|
Offset = 2;
|
|
break; /* \\xxx */
|
|
|
|
case 6:
|
|
Offset = 4;
|
|
break; /* \\.\xxx */
|
|
}
|
|
Length = wcslen(fullname + Offset);
|
|
memcpy (Buffer + tmpLength, fullname + Offset, (Length + 1) * sizeof(WCHAR));
|
|
Length += tmpLength;
|
|
if (Type == RtlPathTypeDriveAbsolute ||
|
|
Type == RtlPathTypeDriveRelative)
|
|
{
|
|
/* make the drive letter to uppercase */
|
|
Buffer[tmpLength] = towupper(Buffer[tmpLength]);
|
|
}
|
|
|
|
/* set NT filename */
|
|
NtPathName->Length = Length * sizeof(WCHAR);
|
|
NtPathName->MaximumLength = sizeof(fullname) + MAX_PFX_SIZE;
|
|
NtPathName->Buffer = Buffer;
|
|
|
|
/* set pointer to file part if possible */
|
|
if (NtFileNamePart && *NtFileNamePart)
|
|
*NtFileNamePart = Buffer + Length - wcslen (*NtFileNamePart);
|
|
|
|
/* Set name and handle structure if possible */
|
|
if (DirectoryInfo)
|
|
{
|
|
memset (DirectoryInfo, 0, sizeof(CURDIR));
|
|
cd = (PCURDIR)&(NtCurrentPeb ()->ProcessParameters->CurrentDirectory.DosPath);
|
|
if (Type == 5 && cd->Handle)
|
|
{
|
|
RtlInitUnicodeString(&us, fullname);
|
|
if (RtlEqualUnicodeString(&us, &cd->DosPath, TRUE))
|
|
{
|
|
Length = ((cd->DosPath.Length / sizeof(WCHAR)) - Offset) + ((Type == 1) ? 8 : 4);
|
|
DirectoryInfo->DosPath.Buffer = Buffer + Length;
|
|
DirectoryInfo->DosPath.Length = NtPathName->Length - (Length * sizeof(WCHAR));
|
|
DirectoryInfo->DosPath.MaximumLength = DirectoryInfo->DosPath.Length;
|
|
DirectoryInfo->Handle = cd->Handle;
|
|
}
|
|
}
|
|
}
|
|
|
|
RtlReleasePebLock();
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
ULONG
|
|
NTAPI
|
|
RtlDosSearchPath_U (
|
|
PCWSTR sp,
|
|
PCWSTR name,
|
|
PCWSTR ext,
|
|
ULONG buf_sz,
|
|
WCHAR *buffer,
|
|
PWSTR *FilePart
|
|
)
|
|
{
|
|
ULONG Type;
|
|
ULONG Length = 0;
|
|
PWSTR full_name;
|
|
PWSTR wcs;
|
|
PCWSTR path;
|
|
|
|
Type = RtlDetermineDosPathNameType_U (name);
|
|
|
|
if (Type == 5)
|
|
{
|
|
Length = wcslen (sp);
|
|
Length += wcslen (name);
|
|
if (wcschr (name, L'.'))
|
|
ext = NULL;
|
|
if (ext != NULL)
|
|
Length += wcslen (ext);
|
|
|
|
full_name = (WCHAR*)RtlAllocateHeap (RtlGetProcessHeap (),
|
|
0,
|
|
(Length + 1) * sizeof(WCHAR));
|
|
Length = 0;
|
|
if (full_name != NULL)
|
|
{
|
|
path = sp;
|
|
while (*path)
|
|
{
|
|
wcs = full_name;
|
|
while (*path && *path != L';')
|
|
*wcs++ = *path++;
|
|
if (*path)
|
|
path++;
|
|
if (wcs != full_name && *(wcs - 1) != L'\\')
|
|
*wcs++ = L'\\';
|
|
wcscpy (wcs, name);
|
|
if (ext)
|
|
wcscat (wcs, ext);
|
|
if (RtlDoesFileExists_U (full_name))
|
|
{
|
|
Length = RtlGetFullPathName_U (full_name,
|
|
buf_sz,
|
|
buffer,
|
|
FilePart);
|
|
break;
|
|
}
|
|
}
|
|
|
|
RtlFreeHeap (RtlGetProcessHeap (),
|
|
0,
|
|
full_name);
|
|
}
|
|
}
|
|
else if (RtlDoesFileExists_U (name))
|
|
{
|
|
Length = RtlGetFullPathName_U (name,
|
|
buf_sz,
|
|
buffer,
|
|
FilePart);
|
|
}
|
|
|
|
return Length;
|
|
}
|
|
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
BOOLEAN NTAPI
|
|
RtlDoesFileExists_U(IN PCWSTR FileName)
|
|
{
|
|
UNICODE_STRING NtFileName;
|
|
OBJECT_ATTRIBUTES Attr;
|
|
FILE_BASIC_INFORMATION Info;
|
|
NTSTATUS Status;
|
|
CURDIR CurDir;
|
|
|
|
|
|
if (!RtlDosPathNameToNtPathName_U (FileName,
|
|
&NtFileName,
|
|
NULL,
|
|
&CurDir))
|
|
return FALSE;
|
|
|
|
if (CurDir.DosPath.Length)
|
|
NtFileName = CurDir.DosPath;
|
|
else
|
|
CurDir.Handle = 0;
|
|
|
|
InitializeObjectAttributes (&Attr,
|
|
&NtFileName,
|
|
OBJ_CASE_INSENSITIVE,
|
|
CurDir.Handle,
|
|
NULL);
|
|
|
|
Status = ZwQueryAttributesFile (&Attr, &Info);
|
|
|
|
RtlFreeUnicodeString(&NtFileName);
|
|
|
|
|
|
if (NT_SUCCESS(Status) ||
|
|
Status == STATUS_SHARING_VIOLATION ||
|
|
Status == STATUS_ACCESS_DENIED)
|
|
return TRUE;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/*
|
|
* @unimplemented
|
|
*/
|
|
BOOLEAN NTAPI
|
|
RtlDosPathNameToRelativeNtPathName_U(PVOID Unknown1,
|
|
PVOID Unknown2,
|
|
PVOID Unknown3,
|
|
PVOID Unknown4)
|
|
{
|
|
DPRINT1("RtlDosPathNameToRelativeNtPathName_U(0x%p, 0x%p, 0x%p, 0x%p) UNIMPLEMENTED!\n",
|
|
Unknown1, Unknown2, Unknown3, Unknown4);
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/*
|
|
* @unimplemented
|
|
*/
|
|
VOID NTAPI
|
|
RtlReleaseRelativeName(PVOID Unknown)
|
|
{
|
|
DPRINT1("RtlReleaseRelativeName(0x%p) UNIMPLEMENTED\n", Unknown);
|
|
}
|
|
|
|
NTSTATUS NTAPI
|
|
RtlpEnsureBufferSize(ULONG Unknown1, ULONG Unknown2, ULONG Unknown3)
|
|
{
|
|
DPRINT1("RtlpEnsureBufferSize: stub\n");
|
|
return STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NTSTATUS NTAPI
|
|
RtlNtPathNameToDosPathName(ULONG Unknown1, ULONG Unknown2, ULONG Unknown3, ULONG Unknown4)
|
|
{
|
|
DPRINT1("RtlNtPathNameToDosPathName: stub\n");
|
|
return STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/* EOF */
|