786 lines
23 KiB
C
786 lines
23 KiB
C
/*
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* Ntdll path functions
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*
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* Copyright 2002, 2003 Alexandre Julliard
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* Copyright 2003 Eric Pouech
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winreg.h"
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#include "winternl.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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#include "ntdll_misc.h"
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WINE_DEFAULT_DEBUG_CHANNEL(file);
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static const WCHAR DeviceRootW[] = {'\\','\\','.','\\',0};
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static const WCHAR NTDosPrefixW[] = {'\\','?','?','\\',0};
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static const WCHAR UncPfxW[] = {'U','N','C','\\',0};
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/* FIXME: hack! */
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HANDLE (WINAPI *pCreateFileW)( LPCWSTR filename, DWORD access, DWORD sharing,
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LPSECURITY_ATTRIBUTES sa, DWORD creation,
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DWORD attributes, HANDLE template );
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#define IS_SEPARATOR(ch) ((ch) == '\\' || (ch) == '/')
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/***********************************************************************
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* RtlDetermineDosPathNameType_U (NTDLL.@)
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*/
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DOS_PATHNAME_TYPE WINAPI RtlDetermineDosPathNameType_U( PCWSTR path )
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{
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if (IS_SEPARATOR(path[0]))
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{
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if (!IS_SEPARATOR(path[1])) return ABSOLUTE_PATH; /* "/foo" */
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if (path[2] != '.') return UNC_PATH; /* "//foo" */
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if (IS_SEPARATOR(path[3])) return DEVICE_PATH; /* "//./foo" */
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if (path[3]) return UNC_PATH; /* "//.foo" */
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return UNC_DOT_PATH; /* "//." */
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}
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else
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{
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if (!path[0] || path[1] != ':') return RELATIVE_PATH; /* "foo" */
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if (IS_SEPARATOR(path[2])) return ABSOLUTE_DRIVE_PATH; /* "c:/foo" */
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return RELATIVE_DRIVE_PATH; /* "c:foo" */
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}
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}
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/******************************************************************
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* RtlDoesFileExists_U
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*
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* FIXME: should not use CreateFileW
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*/
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BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name)
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{
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HANDLE handle = pCreateFileW( file_name, 0, FILE_SHARE_READ|FILE_SHARE_WRITE,
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NULL, OPEN_EXISTING, 0, 0 );
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if (handle == INVALID_HANDLE_VALUE) return FALSE;
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NtClose( handle );
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return TRUE;
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}
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/***********************************************************************
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* RtlIsDosDeviceName_U (NTDLL.@)
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*
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* Check if the given DOS path contains a DOS device name.
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*
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* Returns the length of the device name in the low word and its
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* position in the high word (both in bytes, not WCHARs), or 0 if no
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* device name is found.
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*/
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ULONG WINAPI RtlIsDosDeviceName_U( PCWSTR 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 INVALID_PATH:
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case UNC_PATH:
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return 0;
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case DEVICE_PATH:
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if (!strcmpiW( 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 + strlenW(dos_name) - 1;
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if (end >= dos_name && *end == ':') end--; /* remove 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_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 = strchrW( 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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else
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{
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/* no extension, remove trailing spaces */
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while (end >= dos_name && *end == ' ') end--;
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}
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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 (strncmpiW( start, auxW, 3 ) &&
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strncmpiW( start, conW, 3 ) &&
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strncmpiW( start, nulW, 3 ) &&
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strncmpiW( 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 (strncmpiW( start, comW, 3 ) && strncmpiW( 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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* RtlDosPathNameToNtPathName_U [NTDLL.@]
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*
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* dos_path: a DOS path name (fully qualified or not)
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* ntpath: pointer to a UNICODE_STRING to hold the converted
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* path name
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* file_part:will point (in ntpath) to the file part in the path
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* cd: directory reference (optional)
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*
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* FIXME:
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* + fill the cd structure
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*/
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BOOLEAN WINAPI RtlDosPathNameToNtPathName_U(PWSTR dos_path,
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PUNICODE_STRING ntpath,
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PWSTR* file_part,
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CURDIR* cd)
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{
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static const WCHAR LongFileNamePfxW[4] = {'\\','\\','?','\\'};
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ULONG sz, ptr_sz, offset;
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WCHAR local[MAX_PATH];
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LPWSTR ptr;
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TRACE("(%s,%p,%p,%p)\n",
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debugstr_w(dos_path), ntpath, file_part, cd);
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if (cd)
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{
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FIXME("Unsupported parameter\n");
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memset(cd, 0, sizeof(*cd));
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}
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if (!dos_path || !*dos_path) return FALSE;
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if (!memcmp(dos_path, LongFileNamePfxW, sizeof(LongFileNamePfxW)))
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{
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dos_path += sizeof(LongFileNamePfxW) / sizeof(WCHAR);
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ptr = NULL;
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ptr_sz = 0;
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}
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else
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{
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ptr = local;
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ptr_sz = sizeof(local);
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}
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sz = RtlGetFullPathName_U(dos_path, ptr_sz, ptr, file_part);
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if (sz == 0) return FALSE;
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if (sz > ptr_sz)
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{
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ptr = RtlAllocateHeap(ntdll_get_process_heap(), 0, sz);
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sz = RtlGetFullPathName_U(dos_path, sz, ptr, file_part);
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}
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ntpath->MaximumLength = sz + (4 /* unc\ */ + 4 /* \??\ */) * sizeof(WCHAR);
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ntpath->Buffer = RtlAllocateHeap(ntdll_get_process_heap(), 0, ntpath->MaximumLength);
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if (!ntpath->Buffer)
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{
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if (ptr != local) RtlFreeHeap(ntdll_get_process_heap(), 0, ptr);
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return FALSE;
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}
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strcpyW(ntpath->Buffer, NTDosPrefixW);
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offset = 0;
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switch (RtlDetermineDosPathNameType_U(ptr))
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{
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case UNC_PATH: /* \\foo */
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if (ptr[2] != '?')
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{
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offset = 2;
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strcatW(ntpath->Buffer, UncPfxW);
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}
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break;
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case DEVICE_PATH: /* \\.\foo */
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offset = 4;
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break;
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default: break; /* needed to keep gcc quiet */
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}
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strcatW(ntpath->Buffer, ptr + offset);
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ntpath->Length = strlenW(ntpath->Buffer) * sizeof(WCHAR);
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if (file_part && *file_part)
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*file_part = ntpath->Buffer + ntpath->Length / sizeof(WCHAR) - strlenW(*file_part);
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/* FIXME: cd filling */
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if (ptr != local) RtlFreeHeap(ntdll_get_process_heap(), 0, ptr);
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return TRUE;
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}
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/******************************************************************
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* RtlDosSearchPath_U
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*
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* Searchs a file of name 'name' into a ';' separated list of paths
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* (stored in paths)
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* Doesn't seem to search elsewhere than the paths list
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* Stores the result in buffer (file_part will point to the position
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* of the file name in the buffer)
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* FIXME:
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* - how long shall the paths be ??? (MAX_PATH or larger with \\?\ constructs ???)
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*/
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ULONG WINAPI RtlDosSearchPath_U(LPCWSTR paths, LPCWSTR search, LPCWSTR ext,
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ULONG buffer_size, LPWSTR buffer,
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LPWSTR* file_part)
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{
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DOS_PATHNAME_TYPE type = RtlDetermineDosPathNameType_U(search);
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ULONG len = 0;
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if (type == RELATIVE_PATH)
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{
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ULONG allocated = 0, needed, filelen;
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WCHAR *name = NULL;
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filelen = 1 /* for \ */ + strlenW(search) + 1 /* \0 */;
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/* Windows only checks for '.' without worrying about path components */
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if (strchrW( search, '.' )) ext = NULL;
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if (ext != NULL) filelen += strlenW(ext);
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while (*paths)
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{
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LPCWSTR ptr;
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for (needed = 0, ptr = paths; *ptr != 0 && *ptr++ != ';'; needed++);
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if (needed + filelen > allocated)
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{
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name = (WCHAR*)RtlReAllocateHeap(ntdll_get_process_heap(), 0,
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name, (needed + filelen) * sizeof(WCHAR));
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if (!name) return 0;
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allocated = needed + filelen;
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}
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memmove(name, paths, needed * sizeof(WCHAR));
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/* append '\\' if none is present */
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if (needed > 0 && name[needed - 1] != '\\') name[needed++] = '\\';
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strcpyW(&name[needed], search);
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if (ext) strcatW(&name[needed], ext);
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if (RtlDoesFileExists_U(name))
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{
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len = RtlGetFullPathName_U(name, buffer_size, buffer, file_part);
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break;
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}
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paths = ptr;
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}
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RtlFreeHeap(ntdll_get_process_heap(), 0, name);
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}
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else if (RtlDoesFileExists_U(search))
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{
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len = RtlGetFullPathName_U(search, buffer_size, buffer, file_part);
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}
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return len;
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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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*/
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static ULONG get_full_path_helper(LPCWSTR name, LPWSTR buffer, ULONG size)
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{
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ULONG reqsize, mark = 0;
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DOS_PATHNAME_TYPE type;
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LPWSTR ptr;
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UNICODE_STRING* cd;
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reqsize = sizeof(WCHAR); /* '\0' at the end */
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RtlAcquirePebLock();
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cd = &ntdll_get_process_pmts()->CurrentDirectoryName;
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switch (type = RtlDetermineDosPathNameType_U(name))
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{
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case UNC_PATH: /* \\foo */
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case DEVICE_PATH: /* \\.\foo */
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if (reqsize <= size) buffer[0] = '\0';
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break;
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case ABSOLUTE_DRIVE_PATH: /* c:\foo */
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reqsize += sizeof(WCHAR);
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if (reqsize <= size)
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{
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buffer[0] = toupperW(name[0]);
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buffer[1] = '\0';
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}
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name++;
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break;
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case RELATIVE_DRIVE_PATH: /* c:foo */
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if (toupperW(name[0]) != toupperW(cd->Buffer[0]) || cd->Buffer[1] != ':')
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{
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WCHAR drive[4];
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UNICODE_STRING var, val;
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drive[0] = '=';
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drive[1] = name[0];
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drive[2] = ':';
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drive[3] = '\0';
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var.Length = 6;
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var.MaximumLength = 8;
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var.Buffer = drive;
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val.Length = 0;
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val.MaximumLength = size;
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val.Buffer = buffer;
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name += 2;
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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;
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/* append trailing \\ */
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reqsize += sizeof(WCHAR);
|
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if (reqsize <= size)
|
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{
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buffer[reqsize / sizeof(WCHAR) - 2] = '\\';
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buffer[reqsize / sizeof(WCHAR) - 1] = '\0';
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}
|
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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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if (reqsize <= size)
|
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{
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buffer[0] = drive[1];
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buffer[1] = ':';
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buffer[2] = '\\';
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buffer[3] = '\0';
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}
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break;
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default:
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ERR("Unsupported status code\n");
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break;
|
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}
|
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break;
|
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}
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name += 2;
|
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/* fall through */
|
|
|
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case RELATIVE_PATH: /* foo */
|
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reqsize += cd->Length;
|
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if (reqsize <= size)
|
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{
|
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memcpy(buffer, cd->Buffer, cd->Length);
|
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buffer[cd->Length / sizeof(WCHAR)] = 0;
|
|
}
|
|
if (cd->Buffer[1] != ':')
|
|
{
|
|
ptr = strchrW(cd->Buffer + 2, '\\');
|
|
if (ptr) ptr = strchrW(ptr + 1, '\\');
|
|
if (!ptr) ptr = cd->Buffer + strlenW(cd->Buffer);
|
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mark = ptr - cd->Buffer;
|
|
}
|
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break;
|
|
|
|
case ABSOLUTE_PATH: /* \xxx */
|
|
if (cd->Buffer[1] == ':')
|
|
{
|
|
reqsize += 2 * sizeof(WCHAR);
|
|
if (reqsize <= size)
|
|
{
|
|
buffer[0] = cd->Buffer[0];
|
|
buffer[1] = ':';
|
|
buffer[2] = '\0';
|
|
}
|
|
}
|
|
else
|
|
{
|
|
unsigned len;
|
|
|
|
ptr = strchrW(cd->Buffer + 2, '\\');
|
|
if (ptr) ptr = strchrW(ptr + 1, '\\');
|
|
if (!ptr) ptr = cd->Buffer + strlenW(cd->Buffer);
|
|
len = (ptr - cd->Buffer) * sizeof(WCHAR);
|
|
reqsize += len;
|
|
mark = len / sizeof(WCHAR);
|
|
if (reqsize <= size)
|
|
{
|
|
memcpy(buffer, cd->Buffer, len);
|
|
buffer[len / sizeof(WCHAR)] = '\0';
|
|
}
|
|
else
|
|
buffer[0] = '\0';
|
|
}
|
|
break;
|
|
|
|
case UNC_DOT_PATH: /* \\. */
|
|
reqsize += 4 * sizeof(WCHAR);
|
|
name += 3;
|
|
if (reqsize <= size)
|
|
{
|
|
buffer[0] = '\\';
|
|
buffer[1] = '\\';
|
|
buffer[2] = '.';
|
|
buffer[3] = '\\';
|
|
buffer[4] = '\0';
|
|
}
|
|
break;
|
|
|
|
case INVALID_PATH:
|
|
reqsize = 0;
|
|
goto done;
|
|
}
|
|
|
|
reqsize += strlenW(name) * sizeof(WCHAR);
|
|
if (reqsize > size) goto done;
|
|
|
|
strcatW(buffer, name);
|
|
|
|
/* convert every / into a \ */
|
|
for (ptr = buffer; ptr < buffer + size / sizeof(WCHAR); ptr++)
|
|
if (*ptr == '/') *ptr = '\\';
|
|
|
|
reqsize -= sizeof(WCHAR); /* don't count trailing \0 */
|
|
|
|
/* mark is non NULL for UNC names, so start path collapsing after server & share name
|
|
* otherwise, it's a fully qualified DOS name, so start after the drive designation
|
|
*/
|
|
for (ptr = buffer + (mark ? mark : 2); ptr < buffer + reqsize / sizeof(WCHAR); )
|
|
{
|
|
WCHAR* p = strchrW(ptr, '\\');
|
|
if (!p) break;
|
|
|
|
p++;
|
|
if (p[0] == '.')
|
|
{
|
|
switch (p[1])
|
|
{
|
|
case '.':
|
|
switch (p[2])
|
|
{
|
|
case '\\':
|
|
{
|
|
WCHAR* prev = p - 2;
|
|
while (prev >= buffer + mark && *prev != '\\') prev--;
|
|
/* either collapse \foo\.. into \ or \.. into \ */
|
|
if (prev < buffer + mark) prev = p - 1;
|
|
reqsize -= (p + 2 - prev) * sizeof(WCHAR);
|
|
memmove(prev, p + 2, reqsize + sizeof(WCHAR) - (prev - buffer) * sizeof(WCHAR));
|
|
p = prev;
|
|
}
|
|
break;
|
|
case '\0':
|
|
reqsize -= 2 * sizeof(WCHAR);
|
|
*p = 0;
|
|
break;
|
|
}
|
|
break;
|
|
case '\\':
|
|
reqsize -= 2 * sizeof(WCHAR);
|
|
memmove(p, p + 2, reqsize + sizeof(WCHAR) - (p - buffer) * sizeof(WCHAR));
|
|
break;
|
|
}
|
|
}
|
|
ptr = p;
|
|
}
|
|
|
|
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)
|
|
*
|
|
*/
|
|
DWORD WINAPI RtlGetFullPathName_U(const WCHAR* name, ULONG size, WCHAR* buffer,
|
|
WCHAR** file_part)
|
|
{
|
|
WCHAR* ptr;
|
|
DWORD dosdev;
|
|
DWORD reqsize;
|
|
|
|
TRACE("(%s %lu %p %p)\n", debugstr_w(name), size, buffer, file_part);
|
|
|
|
if (!name || !*name) return 0;
|
|
|
|
if (file_part) *file_part = NULL;
|
|
|
|
/* check for DOS device name */
|
|
dosdev = RtlIsDosDeviceName_U(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;
|
|
strcpyW(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 > size)
|
|
{
|
|
LPWSTR tmp = RtlAllocateHeap(ntdll_get_process_heap(), 0, reqsize);
|
|
reqsize = get_full_path_helper(name, tmp, reqsize);
|
|
if (reqsize > size) /* it may have worked the second time */
|
|
{
|
|
RtlFreeHeap(ntdll_get_process_heap(), 0, tmp);
|
|
return reqsize + sizeof(WCHAR);
|
|
}
|
|
memcpy( buffer, tmp, reqsize + sizeof(WCHAR) );
|
|
RtlFreeHeap(ntdll_get_process_heap(), 0, tmp);
|
|
}
|
|
|
|
/* find file part */
|
|
if (file_part && (ptr = strrchrW(buffer, '\\')) != NULL && ptr >= buffer + 2 && *++ptr)
|
|
*file_part = ptr;
|
|
return reqsize;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* RtlGetLongestNtPathLength [NTDLL.@]
|
|
*
|
|
* Get the longest allowed path length
|
|
*
|
|
* PARAMS
|
|
* None.
|
|
*
|
|
* RETURNS
|
|
* The longest allowed path length (277 characters under Win2k).
|
|
*/
|
|
DWORD WINAPI RtlGetLongestNtPathLength(void)
|
|
{
|
|
return 277;
|
|
}
|
|
|
|
/******************************************************************
|
|
* RtlIsNameLegalDOS8Dot3 (NTDLL.@)
|
|
*
|
|
* Returns TRUE iff unicode is a valid DOS (8+3) name.
|
|
* If the name is valid, oem gets filled with the corresponding OEM string
|
|
* spaces is set to TRUE if unicode contains spaces
|
|
*/
|
|
BOOLEAN WINAPI RtlIsNameLegalDOS8Dot3( const UNICODE_STRING *unicode,
|
|
OEM_STRING *oem, BOOLEAN *spaces )
|
|
{
|
|
int dot = -1;
|
|
unsigned int i;
|
|
char buffer[12];
|
|
OEM_STRING oem_str;
|
|
BOOLEAN got_space = FALSE;
|
|
|
|
if (!oem)
|
|
{
|
|
oem_str.Length = sizeof(buffer);
|
|
oem_str.MaximumLength = sizeof(buffer);
|
|
oem_str.Buffer = buffer;
|
|
oem = &oem_str;
|
|
}
|
|
if (RtlUpcaseUnicodeStringToCountedOemString( oem, unicode, FALSE ) != STATUS_SUCCESS)
|
|
return FALSE;
|
|
|
|
if (oem->Length > 12) return FALSE;
|
|
|
|
/* a starting . is invalid, except for . and .. */
|
|
if (oem->Buffer[0] == '.')
|
|
{
|
|
if (oem->Length != 1 && (oem->Length != 2 || oem->Buffer[1] != '.')) return FALSE;
|
|
if (spaces) *spaces = FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
for (i = 0; i < oem->Length; i++)
|
|
{
|
|
switch (oem->Buffer[i])
|
|
{
|
|
case ' ':
|
|
/* leading/trailing spaces not allowed */
|
|
if (!i || i == oem->Length-1 || oem->Buffer[i+1] == '.') return FALSE;
|
|
got_space = TRUE;
|
|
break;
|
|
case '.':
|
|
if (dot != -1) return FALSE;
|
|
dot = i;
|
|
break;
|
|
default:
|
|
/* FIXME: check for invalid chars */
|
|
break;
|
|
}
|
|
}
|
|
/* check file part is shorter than 8, extension shorter than 3
|
|
* dot cannot be last in string
|
|
*/
|
|
if (dot == -1)
|
|
{
|
|
if (oem->Length > 8) return FALSE;
|
|
}
|
|
else
|
|
{
|
|
if (dot > 8 || (oem->Length - dot > 4) || dot == oem->Length - 1) return FALSE;
|
|
}
|
|
if (spaces) *spaces = got_space;
|
|
return TRUE;
|
|
}
|
|
|
|
/******************************************************************
|
|
* RtlGetCurrentDirectory_U (NTDLL.@)
|
|
*
|
|
*/
|
|
NTSTATUS WINAPI RtlGetCurrentDirectory_U(ULONG buflen, LPWSTR buf)
|
|
{
|
|
UNICODE_STRING* us;
|
|
ULONG len;
|
|
|
|
TRACE("(%lu %p)\n", buflen, buf);
|
|
|
|
RtlAcquirePebLock();
|
|
|
|
us = &ntdll_get_process_pmts()->CurrentDirectoryName;
|
|
len = us->Length / sizeof(WCHAR);
|
|
if (us->Buffer[len - 1] == '\\' && us->Buffer[len - 2] != ':')
|
|
len--;
|
|
|
|
if (buflen / sizeof(WCHAR) > len)
|
|
{
|
|
memcpy(buf, us->Buffer, len * sizeof(WCHAR));
|
|
buf[len] = '\0';
|
|
}
|
|
else
|
|
{
|
|
len++;
|
|
}
|
|
|
|
RtlReleasePebLock();
|
|
|
|
return len * sizeof(WCHAR);
|
|
}
|
|
|
|
/******************************************************************
|
|
* RtlSetCurrentDirectory_U (NTDLL.@)
|
|
*
|
|
*/
|
|
NTSTATUS WINAPI RtlSetCurrentDirectory_U(const UNICODE_STRING* dir)
|
|
{
|
|
UNICODE_STRING* curdir;
|
|
NTSTATUS nts = STATUS_SUCCESS;
|
|
ULONG size;
|
|
PWSTR buf = NULL;
|
|
|
|
TRACE("(%s)\n", debugstr_w(dir->Buffer));
|
|
|
|
RtlAcquirePebLock();
|
|
|
|
curdir = &ntdll_get_process_pmts()->CurrentDirectoryName;
|
|
size = curdir->MaximumLength;
|
|
|
|
buf = RtlAllocateHeap(ntdll_get_process_heap(), 0, size);
|
|
if (buf == NULL)
|
|
{
|
|
nts = STATUS_NO_MEMORY;
|
|
goto out;
|
|
}
|
|
|
|
size = RtlGetFullPathName_U(dir->Buffer, size, buf, 0);
|
|
if (!size)
|
|
{
|
|
nts = STATUS_OBJECT_NAME_INVALID;
|
|
goto out;
|
|
}
|
|
|
|
switch (RtlDetermineDosPathNameType_U(buf))
|
|
{
|
|
case ABSOLUTE_DRIVE_PATH:
|
|
case UNC_PATH:
|
|
break;
|
|
default:
|
|
FIXME("Don't support those cases yes\n");
|
|
nts = STATUS_NOT_IMPLEMENTED;
|
|
goto out;
|
|
}
|
|
|
|
/* FIXME: should check that the directory actually exists,
|
|
* and fill CurrentDirectoryHandle accordingly
|
|
*/
|
|
|
|
/* append trailing \ if missing */
|
|
if (buf[size / sizeof(WCHAR) - 1] != '\\')
|
|
{
|
|
buf[size / sizeof(WCHAR)] = '\\';
|
|
buf[size / sizeof(WCHAR) + 1] = '\0';
|
|
size += sizeof(WCHAR);
|
|
}
|
|
|
|
memmove(curdir->Buffer, buf, size + sizeof(WCHAR));
|
|
curdir->Length = size;
|
|
|
|
#if 0
|
|
if (curdir->Buffer[1] == ':')
|
|
{
|
|
UNICODE_STRING env;
|
|
WCHAR var[4];
|
|
|
|
var[0] = '=';
|
|
var[1] = curdir->Buffer[0];
|
|
var[2] = ':';
|
|
var[3] = 0;
|
|
env.Length = 3 * sizeof(WCHAR);
|
|
env.MaximumLength = 4 * sizeof(WCHAR);
|
|
env.Buffer = var;
|
|
|
|
RtlSetEnvironmentVariable(NULL, &env, curdir);
|
|
}
|
|
#endif
|
|
|
|
out:
|
|
if (buf) RtlFreeHeap(ntdll_get_process_heap(), 0, buf);
|
|
|
|
RtlReleasePebLock();
|
|
|
|
return nts;
|
|
}
|