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Sweden-Number/dlls/kernel/path.c

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/*
* File handling functions
*
* Copyright 1993 Erik Bos
* Copyright 1996 Alexandre Julliard
* Copyright 2003 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "winerror.h"
#include "ntstatus.h"
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "winternl.h"
#include "kernel_private.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(file);
#define MAX_PATHNAME_LEN 1024
/***********************************************************************
* GetFullPathNameW (KERNEL32.@)
* NOTES
* if the path closed with '\', *lastpart is 0
*/
DWORD WINAPI GetFullPathNameW( LPCWSTR name, DWORD len, LPWSTR buffer,
LPWSTR *lastpart )
{
return RtlGetFullPathName_U(name, len * sizeof(WCHAR), buffer, lastpart) / sizeof(WCHAR);
}
/***********************************************************************
* GetFullPathNameA (KERNEL32.@)
* NOTES
* if the path closed with '\', *lastpart is 0
*/
DWORD WINAPI GetFullPathNameA( LPCSTR name, DWORD len, LPSTR buffer,
LPSTR *lastpart )
{
UNICODE_STRING nameW;
WCHAR bufferW[MAX_PATH];
DWORD ret, retW;
if (!name)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (!RtlCreateUnicodeStringFromAsciiz(&nameW, name))
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return 0;
}
retW = GetFullPathNameW( nameW.Buffer, MAX_PATH, bufferW, NULL);
if (!retW)
ret = 0;
else if (retW > MAX_PATH)
{
SetLastError(ERROR_FILENAME_EXCED_RANGE);
ret = 0;
}
else
{
ret = WideCharToMultiByte(CP_ACP, 0, bufferW, -1, NULL, 0, NULL, NULL);
if (ret && ret <= len)
{
WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, len, NULL, NULL);
ret--; /* length without 0 */
if (lastpart)
{
LPSTR p = buffer + strlen(buffer) - 1;
if (*p != '\\')
{
while ((p > buffer + 2) && (*p != '\\')) p--;
*lastpart = p + 1;
}
else *lastpart = NULL;
}
}
}
RtlFreeUnicodeString(&nameW);
return ret;
}
/***********************************************************************
* GetLongPathNameW (KERNEL32.@)
*
* NOTES
* observed (Win2000):
* shortpath=NULL: LastError=ERROR_INVALID_PARAMETER, ret=0
* shortpath="": LastError=ERROR_PATH_NOT_FOUND, ret=0
*/
DWORD WINAPI GetLongPathNameW( LPCWSTR shortpath, LPWSTR longpath, DWORD longlen )
{
WCHAR tmplongpath[MAX_PATHNAME_LEN];
LPCWSTR p;
DWORD sp = 0, lp = 0;
DWORD tmplen;
BOOL unixabsolute = (shortpath[0] == '/');
WIN32_FIND_DATAW wfd;
HANDLE goit;
if (!shortpath)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (!shortpath[0])
{
SetLastError(ERROR_PATH_NOT_FOUND);
return 0;
}
TRACE("%s,%p,%ld\n", debugstr_w(shortpath), longpath, longlen);
if (shortpath[0] == '\\' && shortpath[1] == '\\')
{
ERR("UNC pathname %s\n", debugstr_w(shortpath));
lstrcpynW( longpath, shortpath, longlen );
return strlenW(longpath);
}
/* check for drive letter */
if (!unixabsolute && shortpath[1] == ':' )
{
tmplongpath[0] = shortpath[0];
tmplongpath[1] = ':';
lp = sp = 2;
}
while (shortpath[sp])
{
/* check for path delimiters and reproduce them */
if (shortpath[sp] == '\\' || shortpath[sp] == '/')
{
if (!lp || tmplongpath[lp-1] != '\\')
{
/* strip double "\\" */
tmplongpath[lp++] = '\\';
}
tmplongpath[lp] = 0; /* terminate string */
sp++;
continue;
}
p = shortpath + sp;
if (sp == 0 && p[0] == '.' && (p[1] == '/' || p[1] == '\\'))
{
tmplongpath[lp++] = *p++;
tmplongpath[lp++] = *p++;
}
for (; *p && *p != '/' && *p != '\\'; p++);
tmplen = p - (shortpath + sp);
lstrcpynW(tmplongpath + lp, shortpath + sp, tmplen + 1);
/* Check if the file exists and use the existing file name */
goit = FindFirstFileW(tmplongpath, &wfd);
if (goit == INVALID_HANDLE_VALUE)
{
TRACE("not found %s!\n", debugstr_w(tmplongpath));
SetLastError ( ERROR_FILE_NOT_FOUND );
return 0;
}
FindClose(goit);
strcpyW(tmplongpath + lp, wfd.cFileName);
lp += strlenW(tmplongpath + lp);
sp += tmplen;
}
tmplen = strlenW(shortpath) - 1;
if ((shortpath[tmplen] == '/' || shortpath[tmplen] == '\\') &&
(tmplongpath[lp - 1] != '/' && tmplongpath[lp - 1] != '\\'))
tmplongpath[lp++] = shortpath[tmplen];
tmplongpath[lp] = 0;
tmplen = strlenW(tmplongpath) + 1;
if (tmplen <= longlen)
{
strcpyW(longpath, tmplongpath);
TRACE("returning %s\n", debugstr_w(longpath));
tmplen--; /* length without 0 */
}
return tmplen;
}
/***********************************************************************
* GetLongPathNameA (KERNEL32.@)
*/
DWORD WINAPI GetLongPathNameA( LPCSTR shortpath, LPSTR longpath, DWORD longlen )
{
UNICODE_STRING shortpathW;
WCHAR longpathW[MAX_PATH];
DWORD ret, retW;
if (!shortpath)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
TRACE("%s\n", debugstr_a(shortpath));
if (!RtlCreateUnicodeStringFromAsciiz(&shortpathW, shortpath))
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return 0;
}
retW = GetLongPathNameW(shortpathW.Buffer, longpathW, MAX_PATH);
if (!retW)
ret = 0;
else if (retW > MAX_PATH)
{
SetLastError(ERROR_FILENAME_EXCED_RANGE);
ret = 0;
}
else
{
ret = WideCharToMultiByte(CP_ACP, 0, longpathW, -1, NULL, 0, NULL, NULL);
if (ret <= longlen)
{
WideCharToMultiByte(CP_ACP, 0, longpathW, -1, longpath, longlen, NULL, NULL);
ret--; /* length without 0 */
}
}
RtlFreeUnicodeString(&shortpathW);
return ret;
}
/***********************************************************************
* GetShortPathNameW (KERNEL32.@)
*
* NOTES
* observed:
* longpath=NULL: LastError=ERROR_INVALID_PARAMETER, ret=0
* longpath="" or invalid: LastError=ERROR_BAD_PATHNAME, ret=0
*
* more observations ( with NT 3.51 (WinDD) ):
* longpath <= 8.3 -> just copy longpath to shortpath
* longpath > 8.3 ->
* a) file does not exist -> return 0, LastError = ERROR_FILE_NOT_FOUND
* b) file does exist -> set the short filename.
* - trailing slashes are reproduced in the short name, even if the
* file is not a directory
* - the absolute/relative path of the short name is reproduced like found
* in the long name
* - longpath and shortpath may have the same address
* Peter Ganten, 1999
*/
DWORD WINAPI GetShortPathNameW( LPCWSTR longpath, LPWSTR shortpath, DWORD shortlen )
{
WCHAR tmpshortpath[MAX_PATHNAME_LEN];
LPCWSTR p;
DWORD sp = 0, lp = 0;
DWORD tmplen;
BOOL unixabsolute = (longpath[0] == '/');
WIN32_FIND_DATAW wfd;
HANDLE goit;
UNICODE_STRING ustr;
WCHAR ustr_buf[8+1+3+1];
TRACE("%s\n", debugstr_w(longpath));
if (!longpath)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (!longpath[0])
{
SetLastError(ERROR_BAD_PATHNAME);
return 0;
}
/* check for drive letter */
if (!unixabsolute && longpath[1] == ':' )
{
tmpshortpath[0] = longpath[0];
tmpshortpath[1] = ':';
sp = lp = 2;
}
ustr.Buffer = ustr_buf;
ustr.Length = 0;
ustr.MaximumLength = sizeof(ustr_buf);
while (longpath[lp])
{
/* check for path delimiters and reproduce them */
if (longpath[lp] == '\\' || longpath[lp] == '/')
{
if (!sp || tmpshortpath[sp-1] != '\\')
{
/* strip double "\\" */
tmpshortpath[sp] = '\\';
sp++;
}
tmpshortpath[sp] = 0; /* terminate string */
lp++;
continue;
}
for (p = longpath + lp; *p && *p != '/' && *p != '\\'; p++);
tmplen = p - (longpath + lp);
lstrcpynW(tmpshortpath + sp, longpath + lp, tmplen + 1);
/* Check, if the current element is a valid dos name */
if (tmplen <= 8+1+3+1)
{
BOOLEAN spaces;
memcpy(ustr_buf, longpath + lp, tmplen * sizeof(WCHAR));
ustr_buf[tmplen] = '\0';
ustr.Length = tmplen * sizeof(WCHAR);
if (RtlIsNameLegalDOS8Dot3(&ustr, NULL, &spaces) && !spaces)
{
sp += tmplen;
lp += tmplen;
continue;
}
}
/* Check if the file exists and use the existing short file name */
goit = FindFirstFileW(tmpshortpath, &wfd);
if (goit == INVALID_HANDLE_VALUE) goto notfound;
FindClose(goit);
strcpyW(tmpshortpath + sp, wfd.cAlternateFileName);
sp += strlenW(tmpshortpath + sp);
lp += tmplen;
}
tmpshortpath[sp] = 0;
tmplen = strlenW(tmpshortpath) + 1;
if (tmplen <= shortlen)
{
strcpyW(shortpath, tmpshortpath);
TRACE("returning %s\n", debugstr_w(shortpath));
tmplen--; /* length without 0 */
}
return tmplen;
notfound:
TRACE("not found!\n" );
SetLastError ( ERROR_FILE_NOT_FOUND );
return 0;
}
/***********************************************************************
* GetShortPathNameA (KERNEL32.@)
*/
DWORD WINAPI GetShortPathNameA( LPCSTR longpath, LPSTR shortpath, DWORD shortlen )
{
UNICODE_STRING longpathW;
WCHAR shortpathW[MAX_PATH];
DWORD ret, retW;
if (!longpath)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
TRACE("%s\n", debugstr_a(longpath));
if (!RtlCreateUnicodeStringFromAsciiz(&longpathW, longpath))
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return 0;
}
retW = GetShortPathNameW(longpathW.Buffer, shortpathW, MAX_PATH);
if (!retW)
ret = 0;
else if (retW > MAX_PATH)
{
SetLastError(ERROR_FILENAME_EXCED_RANGE);
ret = 0;
}
else
{
ret = WideCharToMultiByte(CP_ACP, 0, shortpathW, -1, NULL, 0, NULL, NULL);
if (ret <= shortlen)
{
WideCharToMultiByte(CP_ACP, 0, shortpathW, -1, shortpath, shortlen, NULL, NULL);
ret--; /* length without 0 */
}
}
RtlFreeUnicodeString(&longpathW);
return ret;
}
/***********************************************************************
* contains_pathW
*
* Check if the file name contains a path; helper for SearchPathW.
* A relative path is not considered a path unless it starts with ./ or ../
*/
inline static BOOL contains_pathW (LPCWSTR name)
{
if (RtlDetermineDosPathNameType_U( name ) != RELATIVE_PATH) return TRUE;
if (name[0] != '.') return FALSE;
if (name[1] == '/' || name[1] == '\\') return TRUE;
return (name[1] == '.' && (name[2] == '/' || name[2] == '\\'));
}
/***********************************************************************
* SearchPathW [KERNEL32.@]
*
* Searches for a specified file in the search path.
*
* PARAMS
* path [I] Path to search
* name [I] Filename to search for.
* ext [I] File extension to append to file name. The first
* character must be a period. This parameter is
* specified only if the filename given does not
* contain an extension.
* buflen [I] size of buffer, in characters
* buffer [O] buffer for found filename
* lastpart [O] address of pointer to last used character in
* buffer (the final '\')
*
* RETURNS
* Success: length of string copied into buffer, not including
* terminating null character. If the filename found is
* longer than the length of the buffer, the length of the
* filename is returned.
* Failure: Zero
*
* NOTES
* If the file is not found, calls SetLastError(ERROR_FILE_NOT_FOUND)
* (tested on NT 4.0)
*/
DWORD WINAPI SearchPathW( LPCWSTR path, LPCWSTR name, LPCWSTR ext, DWORD buflen,
LPWSTR buffer, LPWSTR *lastpart )
{
DWORD ret = 0;
/* If the name contains an explicit path, ignore the path */
if (contains_pathW(name))
{
/* try first without extension */
if (RtlDoesFileExists_U( name ))
return GetFullPathNameW( name, buflen, buffer, lastpart );
if (ext)
{
LPCWSTR p = strrchrW( name, '.' );
if (p && !strchrW( p, '/' ) && !strchrW( p, '\\' ))
ext = NULL; /* Ignore the specified extension */
}
/* Allocate a buffer for the file name and extension */
if (ext)
{
LPWSTR tmp;
DWORD len = strlenW(name) + strlenW(ext);
if (!(tmp = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) )))
{
SetLastError( ERROR_OUTOFMEMORY );
return 0;
}
strcpyW( tmp, name );
strcatW( tmp, ext );
if (RtlDoesFileExists_U( tmp ))
ret = GetFullPathNameW( tmp, buflen, buffer, lastpart );
HeapFree( GetProcessHeap(), 0, tmp );
}
}
else if (path && path[0]) /* search in the specified path */
{
ret = RtlDosSearchPath_U( path, name, ext, buflen * sizeof(WCHAR),
buffer, lastpart ) / sizeof(WCHAR);
}
else /* search in the default path */
{
WCHAR *dll_path = MODULE_get_dll_load_path( NULL );
if (dll_path)
{
ret = RtlDosSearchPath_U( dll_path, name, ext, buflen * sizeof(WCHAR),
buffer, lastpart ) / sizeof(WCHAR);
HeapFree( GetProcessHeap(), 0, dll_path );
}
else
{
SetLastError( ERROR_OUTOFMEMORY );
return 0;
}
}
if (!ret) SetLastError( ERROR_FILE_NOT_FOUND );
else TRACE( "found %s\n", debugstr_w(buffer) );
return ret;
}
/***********************************************************************
* SearchPathA (KERNEL32.@)
*/
DWORD WINAPI SearchPathA( LPCSTR path, LPCSTR name, LPCSTR ext,
DWORD buflen, LPSTR buffer, LPSTR *lastpart )
{
UNICODE_STRING pathW, nameW, extW;
WCHAR bufferW[MAX_PATH];
DWORD ret, retW;
if (path) RtlCreateUnicodeStringFromAsciiz(&pathW, path);
else pathW.Buffer = NULL;
if (name) RtlCreateUnicodeStringFromAsciiz(&nameW, name);
else nameW.Buffer = NULL;
if (ext) RtlCreateUnicodeStringFromAsciiz(&extW, ext);
else extW.Buffer = NULL;
retW = SearchPathW(pathW.Buffer, nameW.Buffer, extW.Buffer, MAX_PATH, bufferW, NULL);
if (!retW)
ret = 0;
else if (retW > MAX_PATH)
{
SetLastError(ERROR_FILENAME_EXCED_RANGE);
ret = 0;
}
else
{
ret = WideCharToMultiByte(CP_ACP, 0, bufferW, -1, NULL, 0, NULL, NULL);
if (buflen >= ret)
{
WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, buflen, NULL, NULL);
ret--; /* length without 0 */
if (lastpart) *lastpart = strrchr(buffer, '\\') + 1;
}
}
RtlFreeUnicodeString(&pathW);
RtlFreeUnicodeString(&nameW);
RtlFreeUnicodeString(&extW);
return ret;
}
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