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wine/files/directory.c
Alexandre Julliard 1a87dc42e2 Removed some of the DOS device hacks (based on a patch by Eric 
Pouech).
2004-02-24 01:15:12 +00:00

990 lines
30 KiB
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/*
* DOS directories functions
*
* Copyright 1995 Alexandre Julliard
*
* 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 <ctype.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <errno.h>
#ifdef HAVE_SYS_ERRNO_H
#include <sys/errno.h>
#endif
#include "ntstatus.h"
#include "windef.h"
#include "winbase.h"
#include "wine/winbase16.h"
#include "wingdi.h"
#include "wine/winuser16.h"
#include "winerror.h"
#include "winreg.h"
#include "winternl.h"
#include "wine/unicode.h"
#include "drive.h"
#include "file.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dosfs);
WINE_DECLARE_DEBUG_CHANNEL(file);
static DOS_FULL_NAME DIR_Windows;
static DOS_FULL_NAME DIR_System;
/***********************************************************************
* FILE_contains_pathW
*/
inline static int FILE_contains_pathW (LPCWSTR name)
{
return ((*name && (name[1] == ':')) ||
strchrW (name, '/') || strchrW (name, '\\'));
}
/***********************************************************************
* DIR_GetPath
*
* Get a path name from the wine.ini file and make sure it is valid.
*/
static int DIR_GetPath( HKEY hkey, LPCWSTR keyname, LPCWSTR defval, DOS_FULL_NAME *full_name,
LPWSTR longname, INT longname_len, BOOL warn )
{
UNICODE_STRING nameW;
DWORD dummy;
WCHAR tmp[MAX_PATHNAME_LEN];
BY_HANDLE_FILE_INFORMATION info;
const WCHAR *path = defval;
const char *mess = "does not exist";
RtlInitUnicodeString( &nameW, keyname );
if (hkey && !NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
path = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
if (!DOSFS_GetFullName( path, TRUE, full_name ) ||
(!FILE_Stat( full_name->long_name, &info, NULL ) && (mess=strerror(errno)))||
(!(info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && (mess="not a directory")) ||
(!(GetLongPathNameW(full_name->short_name, longname, longname_len))) )
{
if (warn)
{
MESSAGE("Invalid path %s for %s directory: %s.\n",
debugstr_w(path), debugstr_w(keyname), mess);
MESSAGE("Perhaps you have not properly edited your Wine configuration file (%s/config)\n",
wine_get_config_dir());
}
return 0;
}
return 1;
}
/***********************************************************************
* DIR_Init
*/
int DIR_Init(void)
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
HKEY hkey;
char path[MAX_PATHNAME_LEN];
WCHAR longpath[MAX_PATHNAME_LEN];
DOS_FULL_NAME tmp_dir, profile_dir;
int drive;
const char *cwd;
static const WCHAR wineW[] = {'M','a','c','h','i','n','e','\\',
'S','o','f','t','w','a','r','e','\\',
'W','i','n','e','\\','W','i','n','e','\\',
'C','o','n','f','i','g','\\','W','i','n','e',0};
static const WCHAR windowsW[] = {'w','i','n','d','o','w','s',0};
static const WCHAR systemW[] = {'s','y','s','t','e','m',0};
static const WCHAR tempW[] = {'t','e','m','p',0};
static const WCHAR profileW[] = {'p','r','o','f','i','l','e',0};
static const WCHAR windows_dirW[] = {'c',':','\\','w','i','n','d','o','w','s',0};
static const WCHAR system_dirW[] = {'c',':','\\','w','i','n','d','o','w','s','\\','s','y','s','t','e','m',0};
static const WCHAR pathW[] = {'p','a','t','h',0};
static const WCHAR path_dirW[] = {'c',':','\\','w','i','n','d','o','w','s',';',
'c',':','\\','w','i','n','d','o','w','s','\\','s','y','s','t','e','m',0};
static const WCHAR path_capsW[] = {'P','A','T','H',0};
static const WCHAR temp_capsW[] = {'T','E','M','P',0};
static const WCHAR tmp_capsW[] = {'T','M','P',0};
static const WCHAR windirW[] = {'w','i','n','d','i','r',0};
static const WCHAR winsysdirW[] = {'w','i','n','s','y','s','d','i','r',0};
static const WCHAR userprofileW[] = {'U','S','E','R','P','R','O','F','I','L','E',0};
static const WCHAR systemrootW[] = {'S','Y','S','T','E','M','R','O','O','T',0};
static const WCHAR wcmdW[] = {'\\','w','c','m','d','.','e','x','e',0};
static const WCHAR comspecW[] = {'C','O','M','S','P','E','C',0};
static const WCHAR empty_strW[] = { 0 };
if (!getcwd( path, MAX_PATHNAME_LEN ))
{
perror( "Could not get current directory" );
return 0;
}
cwd = path;
if ((drive = DRIVE_FindDriveRoot( &cwd )) == -1)
{
MESSAGE("Warning: could not find wine config [Drive x] entry "
"for current working directory %s; "
"starting in windows directory.\n", cwd );
}
else
{
WCHAR szdrive[3]={drive+'A',':',0};
MultiByteToWideChar(CP_UNIXCP, 0, cwd, -1, longpath, MAX_PATHNAME_LEN);
DRIVE_SetCurrentDrive( drive );
DRIVE_Chdir( drive, longpath );
if(GetDriveTypeW(szdrive)==DRIVE_CDROM)
chdir("/"); /* change to root directory so as not to lock cdroms */
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &nameW, wineW );
if (NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) hkey = 0;
if (!(DIR_GetPath( hkey, windowsW, windows_dirW, &DIR_Windows, longpath, MAX_PATHNAME_LEN, TRUE )) ||
!(DIR_GetPath( hkey, systemW, system_dirW, &DIR_System, longpath, MAX_PATHNAME_LEN, TRUE )) ||
!(DIR_GetPath( hkey, tempW, windows_dirW, &tmp_dir, longpath, MAX_PATHNAME_LEN, TRUE )))
{
if (hkey) NtClose( hkey );
return 0;
}
if (-1 == access( tmp_dir.long_name, W_OK ))
{
if (errno==EACCES)
{
MESSAGE("Warning: the temporary directory '%s' specified in your\n"
"configuration file (%s) is not writeable.\n",
tmp_dir.long_name, wine_get_config_dir() );
}
else
MESSAGE("Warning: access to temporary directory '%s' failed (%s).\n",
tmp_dir.long_name, strerror(errno));
}
if (drive == -1)
{
drive = DIR_Windows.drive;
DRIVE_SetCurrentDrive( drive );
DRIVE_Chdir( drive, DIR_Windows.short_name + 2 );
}
/* Set the environment variables */
/* set COMSPEC only if it doesn't exist already */
if (!GetEnvironmentVariableW( comspecW, NULL, 0 ))
{
strcpyW( longpath, DIR_System.short_name );
strcatW( longpath, wcmdW );
SetEnvironmentVariableW( comspecW, longpath );
}
/* set PATH only if not set already */
if (!GetEnvironmentVariableW( path_capsW, NULL, 0 ))
{
WCHAR tmp[MAX_PATHNAME_LEN];
DWORD dummy;
const WCHAR *path = path_dirW;
RtlInitUnicodeString( &nameW, pathW );
if (hkey && !NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
tmp, sizeof(tmp), &dummy ))
{
path = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
}
if (strchrW(path, '/'))
{
MESSAGE("Fix your wine config (%s/config) to use DOS drive syntax in [wine] 'Path=' statement! (no '/' allowed)\n", wine_get_config_dir() );
ExitProcess(1);
}
SetEnvironmentVariableW( path_capsW, path );
TRACE("Path = %s\n", debugstr_w(path) );
}
SetEnvironmentVariableW( temp_capsW, tmp_dir.short_name );
SetEnvironmentVariableW( tmp_capsW, tmp_dir.short_name );
SetEnvironmentVariableW( windirW, DIR_Windows.short_name );
SetEnvironmentVariableW( winsysdirW, DIR_System.short_name );
TRACE("WindowsDir = %s (%s)\n",
debugstr_w(DIR_Windows.short_name), DIR_Windows.long_name );
TRACE("SystemDir = %s (%s)\n",
debugstr_w(DIR_System.short_name), DIR_System.long_name );
TRACE("TempDir = %s (%s)\n",
debugstr_w(tmp_dir.short_name), tmp_dir.long_name );
TRACE("Cwd = %c:\\%s\n",
'A' + drive, debugstr_w(DRIVE_GetDosCwd(drive)) );
if (DIR_GetPath( hkey, profileW, empty_strW, &profile_dir, longpath, MAX_PATHNAME_LEN, FALSE ))
{
TRACE("USERPROFILE= %s\n", debugstr_w(longpath) );
SetEnvironmentVariableW( userprofileW, longpath );
}
TRACE("SYSTEMROOT = %s\n", debugstr_w(DIR_Windows.short_name) );
SetEnvironmentVariableW( systemrootW, DIR_Windows.short_name );
if (hkey) NtClose( hkey );
return 1;
}
/***********************************************************************
* GetTempPathA (KERNEL32.@)
*/
UINT WINAPI GetTempPathA( UINT count, LPSTR path )
{
WCHAR pathW[MAX_PATH];
UINT ret;
ret = GetTempPathW(MAX_PATH, pathW);
if (!ret)
return 0;
if (ret > MAX_PATH)
{
SetLastError(ERROR_FILENAME_EXCED_RANGE);
return 0;
}
ret = WideCharToMultiByte(CP_ACP, 0, pathW, -1, NULL, 0, NULL, NULL);
if (ret <= count)
{
WideCharToMultiByte(CP_ACP, 0, pathW, -1, path, count, NULL, NULL);
ret--; /* length without 0 */
}
return ret;
}
/***********************************************************************
* GetTempPathW (KERNEL32.@)
*/
UINT WINAPI GetTempPathW( UINT count, LPWSTR path )
{
static const WCHAR tmp[] = { 'T', 'M', 'P', 0 };
static const WCHAR temp[] = { 'T', 'E', 'M', 'P', 0 };
WCHAR tmp_path[MAX_PATH];
UINT ret;
TRACE("%u,%p\n", count, path);
if (!(ret = GetEnvironmentVariableW( tmp, tmp_path, MAX_PATH )))
if (!(ret = GetEnvironmentVariableW( temp, tmp_path, MAX_PATH )))
if (!(ret = GetCurrentDirectoryW( MAX_PATH, tmp_path )))
return 0;
if (ret > MAX_PATH)
{
SetLastError(ERROR_FILENAME_EXCED_RANGE);
return 0;
}
ret = GetFullPathNameW(tmp_path, MAX_PATH, tmp_path, NULL);
if (!ret) return 0;
if (ret > MAX_PATH - 2)
{
SetLastError(ERROR_FILENAME_EXCED_RANGE);
return 0;
}
if (tmp_path[ret-1] != '\\')
{
tmp_path[ret++] = '\\';
tmp_path[ret] = '\0';
}
ret++; /* add space for terminating 0 */
if (count)
{
lstrcpynW(path, tmp_path, count);
if (count >= ret)
ret--; /* return length without 0 */
else if (count < 4)
path[0] = 0; /* avoid returning ambiguous "X:" */
}
TRACE("returning %u, %s\n", ret, debugstr_w(path));
return ret;
}
/***********************************************************************
* DIR_GetWindowsUnixDir
*/
UINT DIR_GetWindowsUnixDir( LPSTR path, UINT count )
{
if (path) lstrcpynA( path, DIR_Windows.long_name, count );
return strlen( DIR_Windows.long_name );
}
/***********************************************************************
* DIR_GetSystemUnixDir
*/
UINT DIR_GetSystemUnixDir( LPSTR path, UINT count )
{
if (path) lstrcpynA( path, DIR_System.long_name, count );
return strlen( DIR_System.long_name );
}
/***********************************************************************
* GetTempDrive (KERNEL.92)
* A closer look at krnl386.exe shows what the SDK doesn't mention:
*
* returns:
* AL: driveletter
* AH: ':' - yes, some kernel code even does stosw with
* the returned AX.
* DX: 1 for success
*/
UINT WINAPI GetTempDrive( BYTE ignored )
{
char *buffer;
BYTE ret;
UINT len = GetTempPathA( 0, NULL );
if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len + 1 )) )
ret = DRIVE_GetCurrentDrive() + 'A';
else
{
/* FIXME: apparently Windows does something with the ignored byte */
if (!GetTempPathA( len, buffer )) buffer[0] = 'C';
ret = toupper(buffer[0]);
HeapFree( GetProcessHeap(), 0, buffer );
}
return MAKELONG( ret | (':' << 8), 1 );
}
/***********************************************************************
* GetWindowsDirectory (KERNEL.134)
*/
UINT16 WINAPI GetWindowsDirectory16( LPSTR path, UINT16 count )
{
return (UINT16)GetWindowsDirectoryA( path, count );
}
/***********************************************************************
* GetWindowsDirectoryW (KERNEL32.@)
*
* See comment for GetWindowsDirectoryA.
*/
UINT WINAPI GetWindowsDirectoryW( LPWSTR path, UINT count )
{
UINT len = strlenW( DIR_Windows.short_name ) + 1;
if (path && count >= len)
{
strcpyW( path, DIR_Windows.short_name );
len--;
}
return len;
}
/***********************************************************************
* GetWindowsDirectoryA (KERNEL32.@)
*
* Return value:
* If buffer is large enough to hold full path and terminating '\0' character
* function copies path to buffer and returns length of the path without '\0'.
* Otherwise function returns required size including '\0' character and
* does not touch the buffer.
*/
UINT WINAPI GetWindowsDirectoryA( LPSTR path, UINT count )
{
UINT len = WideCharToMultiByte( CP_ACP, 0, DIR_Windows.short_name, -1, NULL, 0, NULL, NULL );
if (path && count >= len)
{
WideCharToMultiByte( CP_ACP, 0, DIR_Windows.short_name, -1, path, count, NULL, NULL );
len--;
}
return len;
}
/***********************************************************************
* GetSystemWindowsDirectoryA (KERNEL32.@) W2K, TS4.0SP4
*/
UINT WINAPI GetSystemWindowsDirectoryA( LPSTR path, UINT count )
{
return GetWindowsDirectoryA( path, count );
}
/***********************************************************************
* GetSystemWindowsDirectoryW (KERNEL32.@) W2K, TS4.0SP4
*/
UINT WINAPI GetSystemWindowsDirectoryW( LPWSTR path, UINT count )
{
return GetWindowsDirectoryW( path, count );
}
/***********************************************************************
* GetSystemDirectory (KERNEL.135)
*/
UINT16 WINAPI GetSystemDirectory16( LPSTR path, UINT16 count )
{
return (UINT16)GetSystemDirectoryA( path, count );
}
/***********************************************************************
* GetSystemDirectoryW (KERNEL32.@)
*
* See comment for GetWindowsDirectoryA.
*/
UINT WINAPI GetSystemDirectoryW( LPWSTR path, UINT count )
{
UINT len = strlenW( DIR_System.short_name ) + 1;
if (path && count >= len)
{
strcpyW( path, DIR_System.short_name );
len--;
}
return len;
}
/***********************************************************************
* GetSystemDirectoryA (KERNEL32.@)
*
* See comment for GetWindowsDirectoryA.
*/
UINT WINAPI GetSystemDirectoryA( LPSTR path, UINT count )
{
UINT len = WideCharToMultiByte( CP_ACP, 0, DIR_System.short_name, -1, NULL, 0, NULL, NULL );
if (path && count >= len)
{
WideCharToMultiByte( CP_ACP, 0, DIR_System.short_name, -1, path, count, NULL, NULL );
len--;
}
return len;
}
/***********************************************************************
* CreateDirectory (KERNEL.144)
*/
BOOL16 WINAPI CreateDirectory16( LPCSTR path, LPVOID dummy )
{
TRACE_(file)("(%s,%p)\n", path, dummy );
return (BOOL16)CreateDirectoryA( path, NULL );
}
/***********************************************************************
* CreateDirectoryW (KERNEL32.@)
* RETURNS:
* TRUE : success
* FALSE : failure
* ERROR_DISK_FULL: on full disk
* ERROR_ALREADY_EXISTS: if directory name exists (even as file)
* ERROR_ACCESS_DENIED: on permission problems
* ERROR_FILENAME_EXCED_RANGE: too long filename(s)
*/
BOOL WINAPI CreateDirectoryW( LPCWSTR path,
LPSECURITY_ATTRIBUTES lpsecattribs )
{
DOS_FULL_NAME full_name;
if (!path || !*path)
{
SetLastError(ERROR_PATH_NOT_FOUND);
return FALSE;
}
TRACE_(file)("(%s,%p)\n", debugstr_w(path), lpsecattribs );
if (RtlIsDosDeviceName_U( path ))
{
TRACE_(file)("cannot use device %s!\n", debugstr_w(path));
SetLastError( ERROR_ACCESS_DENIED );
return FALSE;
}
if (!DOSFS_GetFullName( path, FALSE, &full_name )) return 0;
if (mkdir( full_name.long_name, 0777 ) == -1) {
WARN_(file)("Error '%s' trying to create directory '%s'\n", strerror(errno), full_name.long_name);
/* the FILE_SetDosError() generated error codes don't match the
* CreateDirectory ones for some errnos */
switch (errno) {
case EEXIST:
{
if (!strcmp(DRIVE_GetRoot(full_name.drive), full_name.long_name))
SetLastError(ERROR_ACCESS_DENIED);
else
SetLastError(ERROR_ALREADY_EXISTS);
break;
}
case ENOSPC: SetLastError(ERROR_DISK_FULL); break;
default: FILE_SetDosError();break;
}
return FALSE;
}
return TRUE;
}
/***********************************************************************
* CreateDirectoryA (KERNEL32.@)
*/
BOOL WINAPI CreateDirectoryA( LPCSTR path,
LPSECURITY_ATTRIBUTES lpsecattribs )
{
UNICODE_STRING pathW;
BOOL ret = FALSE;
if (!path || !*path)
{
SetLastError(ERROR_PATH_NOT_FOUND);
return FALSE;
}
if (RtlCreateUnicodeStringFromAsciiz(&pathW, path))
{
ret = CreateDirectoryW(pathW.Buffer, lpsecattribs);
RtlFreeUnicodeString(&pathW);
}
else
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return ret;
}
/***********************************************************************
* CreateDirectoryExA (KERNEL32.@)
*/
BOOL WINAPI CreateDirectoryExA( LPCSTR template, LPCSTR path,
LPSECURITY_ATTRIBUTES lpsecattribs)
{
return CreateDirectoryA(path,lpsecattribs);
}
/***********************************************************************
* CreateDirectoryExW (KERNEL32.@)
*/
BOOL WINAPI CreateDirectoryExW( LPCWSTR template, LPCWSTR path,
LPSECURITY_ATTRIBUTES lpsecattribs)
{
return CreateDirectoryW(path,lpsecattribs);
}
/***********************************************************************
* RemoveDirectory (KERNEL.145)
*/
BOOL16 WINAPI RemoveDirectory16( LPCSTR path )
{
return (BOOL16)RemoveDirectoryA( path );
}
/***********************************************************************
* RemoveDirectoryW (KERNEL32.@)
*/
BOOL WINAPI RemoveDirectoryW( LPCWSTR path )
{
DOS_FULL_NAME full_name;
if (!path)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
TRACE_(file)("%s\n", debugstr_w(path));
if (RtlIsDosDeviceName_U( path ))
{
TRACE_(file)("cannot remove device %s!\n", debugstr_w(path));
SetLastError( ERROR_FILE_NOT_FOUND );
return FALSE;
}
if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
if (rmdir( full_name.long_name ) == -1)
{
FILE_SetDosError();
return FALSE;
}
return TRUE;
}
/***********************************************************************
* RemoveDirectoryA (KERNEL32.@)
*/
BOOL WINAPI RemoveDirectoryA( LPCSTR path )
{
UNICODE_STRING pathW;
BOOL ret = FALSE;
if (!path)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (RtlCreateUnicodeStringFromAsciiz(&pathW, path))
{
ret = RemoveDirectoryW(pathW.Buffer);
RtlFreeUnicodeString(&pathW);
}
else
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return ret;
}
/***********************************************************************
* DIR_TryPath
*
* Helper function for DIR_SearchPath.
*/
static BOOL DIR_TryPath( const DOS_FULL_NAME *dir, LPCWSTR name,
DOS_FULL_NAME *full_name )
{
LPSTR p_l = full_name->long_name + strlen(dir->long_name) + 1;
LPWSTR p_s = full_name->short_name + strlenW(dir->short_name) + 1;
if ((p_s >= full_name->short_name + sizeof(full_name->short_name)/sizeof(full_name->short_name[0]) - 14) ||
(p_l >= full_name->long_name + sizeof(full_name->long_name) - 1))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
if (!DOSFS_FindUnixName( dir, name, p_l,
sizeof(full_name->long_name) - (p_l - full_name->long_name),
p_s, !(DRIVE_GetFlags(dir->drive) & DRIVE_CASE_SENSITIVE) ))
return FALSE;
full_name->drive = dir->drive;
strcpy( full_name->long_name, dir->long_name );
p_l[-1] = '/';
strcpyW( full_name->short_name, dir->short_name );
p_s[-1] = '\\';
return TRUE;
}
static BOOL DIR_SearchSemicolonedPaths(LPCWSTR name, DOS_FULL_NAME *full_name, LPWSTR pathlist)
{
LPWSTR next, buffer = NULL;
INT len = strlenW(name), newlen, currlen = 0;
BOOL ret = FALSE;
next = pathlist;
while (!ret && next)
{
static const WCHAR bkslashW[] = {'\\',0};
LPWSTR cur = next;
while (*cur == ';') cur++;
if (!*cur) break;
next = strchrW( cur, ';' );
if (next) *next++ = '\0';
newlen = strlenW(cur) + len + 2;
if (newlen > currlen)
{
if (buffer)
buffer = HeapReAlloc( GetProcessHeap(), 0, buffer, newlen * sizeof(WCHAR));
else
buffer = HeapAlloc( GetProcessHeap(), 0, newlen * sizeof(WCHAR));
if(!buffer)
goto done;
currlen = newlen;
}
strcpyW( buffer, cur );
strcatW( buffer, bkslashW );
strcatW( buffer, name );
ret = DOSFS_GetFullName( buffer, TRUE, full_name );
}
done:
HeapFree( GetProcessHeap(), 0, buffer );
return ret;
}
/***********************************************************************
* DIR_TryEnvironmentPath
*
* Helper function for DIR_SearchPath.
* Search in the specified path, or in $PATH if NULL.
*/
static BOOL DIR_TryEnvironmentPath( LPCWSTR name, DOS_FULL_NAME *full_name, LPCWSTR envpath )
{
LPWSTR path;
BOOL ret = FALSE;
DWORD size;
static const WCHAR pathW[] = {'P','A','T','H',0};
size = envpath ? strlenW(envpath)+1 : GetEnvironmentVariableW( pathW, NULL, 0 );
if (!size) return FALSE;
if (!(path = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) ))) return FALSE;
if (envpath) strcpyW( path, envpath );
else if (!GetEnvironmentVariableW( pathW, path, size )) goto done;
ret = DIR_SearchSemicolonedPaths(name, full_name, path);
done:
HeapFree( GetProcessHeap(), 0, path );
return ret;
}
/***********************************************************************
* DIR_TryModulePath
*
* Helper function for DIR_SearchPath.
*/
static BOOL DIR_TryModulePath( LPCWSTR name, DOS_FULL_NAME *full_name, BOOL win32 )
{
WCHAR bufferW[MAX_PATH];
LPWSTR p;
if (!win32)
{
char buffer[OFS_MAXPATHNAME];
if (!GetCurrentTask()) return FALSE;
if (!GetModuleFileName16( GetCurrentTask(), buffer, sizeof(buffer) ))
return FALSE;
MultiByteToWideChar(CP_ACP, 0, buffer, -1, bufferW, MAX_PATH);
} else {
if (!GetModuleFileNameW( 0, bufferW, MAX_PATH ) )
return FALSE;
}
if (!(p = strrchrW( bufferW, '\\' ))) return FALSE;
if (MAX_PATH - (++p - bufferW) <= strlenW(name)) return FALSE;
strcpyW( p, name );
return DOSFS_GetFullName( bufferW, TRUE, full_name );
}
/***********************************************************************
* DIR_SearchPath
*
* Implementation of SearchPathA. 'win32' specifies whether the search
* order is Win16 (module path last) or Win32 (module path first).
*
* FIXME: should return long path names.
*/
DWORD DIR_SearchPath( LPCWSTR path, LPCWSTR name, LPCWSTR ext,
DOS_FULL_NAME *full_name, BOOL win32 )
{
LPCWSTR p;
LPWSTR tmp = NULL;
BOOL ret = TRUE;
/* First check the supplied parameters */
p = strrchrW( name, '.' );
if (p && !strchrW( p, '/' ) && !strchrW( p, '\\' ))
ext = NULL; /* Ignore the specified extension */
if (FILE_contains_pathW (name))
path = NULL; /* Ignore path if name already contains a path */
if (path && !*path) path = NULL; /* Ignore empty path */
/* Allocate a buffer for the file name and extension */
if (ext)
{
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 );
name = tmp;
}
/* If the name contains an explicit path, everything's easy */
if (FILE_contains_pathW(name))
{
ret = DOSFS_GetFullName( name, TRUE, full_name );
goto done;
}
/* Search in the specified path */
if (path)
{
ret = DIR_TryEnvironmentPath( name, full_name, path );
goto done;
}
/* Try the path of the current executable (for Win32 search order) */
if (win32 && DIR_TryModulePath( name, full_name, win32 )) goto done;
/* Try the current directory */
if (DOSFS_GetFullName( name, TRUE, full_name )) goto done;
/* Try the Windows system directory */
if (DIR_TryPath( &DIR_System, name, full_name ))
goto done;
/* Try the Windows directory */
if (DIR_TryPath( &DIR_Windows, name, full_name ))
goto done;
/* Try the path of the current executable (for Win16 search order) */
if (!win32 && DIR_TryModulePath( name, full_name, win32 )) goto done;
/* Try all directories in path */
ret = DIR_TryEnvironmentPath( name, full_name, NULL );
done:
if (tmp) HeapFree( GetProcessHeap(), 0, tmp );
return ret;
}
/***********************************************************************
* 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 )
{
LPSTR res;
DOS_FULL_NAME full_name;
if (!DIR_SearchPath( path, name, ext, &full_name, TRUE ))
{
SetLastError(ERROR_FILE_NOT_FOUND);
return 0;
}
TRACE("found %s %s\n", full_name.long_name, debugstr_w(full_name.short_name));
TRACE("drive %c: root %s\n", 'A' + full_name.drive, DRIVE_GetRoot(full_name.drive));
lstrcpynW( buffer, full_name.short_name, buflen );
res = full_name.long_name +
strlen(DRIVE_GetRoot( full_name.drive ));
while (*res == '/') res++;
if (buflen)
{
LPWSTR p;
if (buflen > 3)
{
MultiByteToWideChar(CP_UNIXCP, 0, res, -1, buffer + 3, buflen - 3);
buffer[buflen - 1] = 0;
}
for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
if (lastpart) *lastpart = strrchrW( buffer, '\\' ) + 1;
}
TRACE("Returning %s\n", debugstr_w(buffer) );
return strlenW(buffer);
}
/***********************************************************************
* 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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