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Sweden-Number/dlls/ntdll/directory.c

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/*
* NTDLL directory functions
*
* Copyright 1993 Erik Bos
* Copyright 2003 Eric Pouech
* Copyright 1996, 2004 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <sys/types.h>
#ifdef HAVE_DIRENT_H
# include <dirent.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <limits.h>
#ifdef HAVE_MNTENT_H
#include <mntent.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_SYS_SYSCALL_H
# include <sys/syscall.h>
#endif
#ifdef HAVE_SYS_ATTR_H
#include <sys/attr.h>
#endif
#ifdef MAJOR_IN_MKDEV
# include <sys/mkdev.h>
#elif defined(MAJOR_IN_SYSMACROS)
# include <sys/sysmacros.h>
#endif
#ifdef HAVE_SYS_VNODE_H
# ifdef HAVE_STDINT_H
# include <stdint.h> /* needed for kfreebsd */
# endif
/* Work around a conflict with Solaris' system list defined in sys/list.h. */
#define list SYSLIST
#define list_next SYSLIST_NEXT
#define list_prev SYSLIST_PREV
#define list_head SYSLIST_HEAD
#define list_tail SYSLIST_TAIL
#define list_move_tail SYSLIST_MOVE_TAIL
#define list_remove SYSLIST_REMOVE
#include <sys/vnode.h>
#undef list
#undef list_next
#undef list_prev
#undef list_head
#undef list_tail
#undef list_move_tail
#undef list_remove
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_LINUX_IOCTL_H
#include <linux/ioctl.h>
#endif
#ifdef HAVE_LINUX_MAJOR_H
# include <linux/major.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif
#include <time.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#define NONAMELESSUNION
#include "windef.h"
#include "winnt.h"
#include "winternl.h"
#include "ddk/wdm.h"
#include "ntdll_misc.h"
#include "wine/server.h"
#include "wine/list.h"
#include "wine/debug.h"
#include "wine/exception.h"
#define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
#define IS_SEPARATOR(ch) ((ch) == '\\' || (ch) == '/')
static BOOL show_dot_files;
static RTL_CRITICAL_SECTION dir_section;
static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &dir_section,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": dir_section") }
};
static RTL_CRITICAL_SECTION dir_section = { &critsect_debug, -1, 0, 0, 0, 0 };
/***********************************************************************
* DIR_get_drives_info
*
* Retrieve device/inode number for all the drives. Helper for find_drive_root.
*/
unsigned int DIR_get_drives_info( struct drive_info info[MAX_DOS_DRIVES] )
{
static struct drive_info cache[MAX_DOS_DRIVES];
static time_t last_update;
static unsigned int nb_drives;
unsigned int ret;
time_t now = time(NULL);
RtlEnterCriticalSection( &dir_section );
if (now != last_update)
{
char *buffer, *p;
struct stat st;
unsigned int i;
if ((buffer = RtlAllocateHeap( GetProcessHeap(), 0,
strlen(config_dir) + sizeof("/dosdevices/a:") )))
{
strcpy( buffer, config_dir );
strcat( buffer, "/dosdevices/a:" );
p = buffer + strlen(buffer) - 2;
for (i = nb_drives = 0; i < MAX_DOS_DRIVES; i++)
{
*p = 'a' + i;
if (!stat( buffer, &st ))
{
cache[i].dev = st.st_dev;
cache[i].ino = st.st_ino;
nb_drives++;
}
else
{
cache[i].dev = 0;
cache[i].ino = 0;
}
}
RtlFreeHeap( GetProcessHeap(), 0, buffer );
}
last_update = now;
}
memcpy( info, cache, sizeof(cache) );
ret = nb_drives;
RtlLeaveCriticalSection( &dir_section );
return ret;
}
/***********************************************************************
* init_directories
*/
void init_directories(void)
{
static const WCHAR WineW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e',0};
static const WCHAR ShowDotFilesW[] = {'S','h','o','w','D','o','t','F','i','l','e','s',0};
char tmp[80];
HANDLE root, hkey;
DWORD dummy;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
RtlOpenCurrentUser( KEY_ALL_ACCESS, &root );
attr.Length = sizeof(attr);
attr.RootDirectory = root;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &nameW, WineW );
/* @@ Wine registry key: HKCU\Software\Wine */
if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
{
RtlInitUnicodeString( &nameW, ShowDotFilesW );
if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
{
WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
show_dot_files = IS_OPTION_TRUE( str[0] );
}
NtClose( hkey );
}
NtClose( root );
unix_funcs->set_show_dot_files( show_dot_files );
}
/******************************************************************************
* NtQueryDirectoryFile [NTDLL.@]
* ZwQueryDirectoryFile [NTDLL.@]
*/
NTSTATUS WINAPI DECLSPEC_HOTPATCH NtQueryDirectoryFile( HANDLE handle, HANDLE event,
PIO_APC_ROUTINE apc_routine, PVOID apc_context,
PIO_STATUS_BLOCK io,
PVOID buffer, ULONG length,
FILE_INFORMATION_CLASS info_class,
BOOLEAN single_entry,
PUNICODE_STRING mask,
BOOLEAN restart_scan )
{
return unix_funcs->NtQueryDirectoryFile( handle, event, apc_routine, apc_context, io, buffer, length,
info_class, single_entry, mask, restart_scan );
}
/******************************************************************************
* wine_nt_to_unix_file_name (NTDLL.@) Not a Windows API
*
* Convert a file name from NT namespace to Unix namespace.
*
* If disposition is not FILE_OPEN or FILE_OVERWRITE, the last path
* element doesn't have to exist; in that case STATUS_NO_SUCH_FILE is
* returned, but the unix name is still filled in properly.
*/
NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRING *unix_name_ret,
UINT disposition, BOOLEAN check_case )
{
return unix_funcs->nt_to_unix_file_name( nameW, unix_name_ret, disposition, check_case );
}
/******************************************************************
* RtlWow64EnableFsRedirection (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64EnableFsRedirection( BOOLEAN enable )
{
if (!is_wow64) return STATUS_NOT_IMPLEMENTED;
ntdll_get_thread_data()->wow64_redir = enable;
return STATUS_SUCCESS;
}
/******************************************************************
* RtlWow64EnableFsRedirectionEx (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64EnableFsRedirectionEx( ULONG disable, ULONG *old_value )
{
if (!is_wow64) return STATUS_NOT_IMPLEMENTED;
__TRY
{
*old_value = !ntdll_get_thread_data()->wow64_redir;
}
__EXCEPT_PAGE_FAULT
{
return STATUS_ACCESS_VIOLATION;
}
__ENDTRY
ntdll_get_thread_data()->wow64_redir = !disable;
return STATUS_SUCCESS;
}
/******************************************************************
* RtlDoesFileExists_U (NTDLL.@)
*/
BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name)
{
UNICODE_STRING nt_name;
FILE_BASIC_INFORMATION basic_info;
OBJECT_ATTRIBUTES attr;
BOOLEAN ret;
if (!RtlDosPathNameToNtPathName_U( file_name, &nt_name, NULL, NULL )) return FALSE;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nt_name;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
ret = NtQueryAttributesFile(&attr, &basic_info) == STATUS_SUCCESS;
RtlFreeUnicodeString( &nt_name );
return ret;
}
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