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goma/wine/f517022ecc8dfd23486b4cdc32343323ffd9ec9b/./dlls/ntdll/directory.c
blob: 3b76f9bfd3ff0e04bb8eae2b1c0aa8f4025d5340 [file]
/*
* 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/unicode.h"
#include "wine/server.h"
#include "wine/list.h"
#include "wine/library.h"
#include "wine/debug.h"
#include "wine/exception.h"
WINE_DEFAULT_DEBUG_CHANNEL(file);
/* just in case... */
#undef VFAT_IOCTL_READDIR_BOTH
#ifdef linux
/* We want the real kernel dirent structure, not the libc one */
typedef struct
{
long d_ino;
long d_off;
unsigned short d_reclen;
char d_name[256];
} KERNEL_DIRENT;
/* Define the VFAT ioctl to get both short and long file names */
#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, KERNEL_DIRENT [2] )
#ifndef O_DIRECTORY
# define O_DIRECTORY 0200000 /* must be directory */
#endif
#endif /* linux */
#define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
#define IS_SEPARATOR(ch) ((ch) == '\\' || (ch) == '/')
#define INVALID_NT_CHARS '*','?','<','>','|','"'
#define INVALID_DOS_CHARS INVALID_NT_CHARS,'+','=',',',';','[',']',' ','\345'
#define MAX_DIR_ENTRY_LEN 255 /* max length of a directory entry in chars */
#define MAX_IGNORED_FILES 4
struct file_identity
{
dev_t dev;
ino_t ino;
};
static struct file_identity ignored_files[MAX_IGNORED_FILES];
static unsigned int ignored_files_count;
union file_directory_info
{
ULONG next;
FILE_DIRECTORY_INFORMATION dir;
FILE_BOTH_DIRECTORY_INFORMATION both;
FILE_FULL_DIRECTORY_INFORMATION full;
FILE_ID_BOTH_DIRECTORY_INFORMATION id_both;
FILE_ID_FULL_DIRECTORY_INFORMATION id_full;
FILE_ID_GLOBAL_TX_DIR_INFORMATION id_tx;
FILE_NAMES_INFORMATION names;
};
struct dir_data_buffer
{
struct dir_data_buffer *next; /* next buffer in the list */
unsigned int size; /* total size of the buffer */
unsigned int pos; /* current position in the buffer */
char data[1];
};
struct dir_data_names
{
const WCHAR *long_name; /* long file name in Unicode */
const WCHAR *short_name; /* short file name in Unicode */
const char *unix_name; /* Unix file name in host encoding */
};
struct dir_data
{
unsigned int size; /* size of the names array */
unsigned int count; /* count of used entries in the names array */
unsigned int pos; /* current reading position in the names array */
struct file_identity id; /* directory file identity */
struct dir_data_names *names; /* directory file names */
struct dir_data_buffer *buffer; /* head of data buffers list */
};
static const unsigned int dir_data_buffer_initial_size = 4096;
static const unsigned int dir_data_cache_initial_size = 256;
static const unsigned int dir_data_names_initial_size = 64;
static struct dir_data **dir_data_cache;
static unsigned int dir_data_cache_size;
static BOOL show_dot_files;
static RTL_RUN_ONCE init_once = RTL_RUN_ONCE_INIT;
/* at some point we may want to allow Winelib apps to set this */
static const BOOL is_case_sensitive = FALSE;
UNICODE_STRING system_dir = { 0, 0, NULL }; /* system directory */
static struct file_identity windir;
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 };
/* check if a given Unicode char is OK in a DOS short name */
static inline BOOL is_invalid_dos_char( WCHAR ch )
{
static const WCHAR invalid_chars[] = { INVALID_DOS_CHARS,'~','.',0 };
if (ch > 0x7f) return TRUE;
return strchrW( invalid_chars, ch ) != NULL;
}
/* check if the device can be a mounted volume */
static inline BOOL is_valid_mounted_device( const struct stat *st )
{
#if defined(linux) || defined(__sun__)
return S_ISBLK( st->st_mode );
#else
/* disks are char devices on *BSD */
return S_ISCHR( st->st_mode );
#endif
}
static inline void ignore_file( const char *name )
{
struct stat st;
assert( ignored_files_count < MAX_IGNORED_FILES );
if (!stat( name, &st ))
{
ignored_files[ignored_files_count].dev = st.st_dev;
ignored_files[ignored_files_count].ino = st.st_ino;
ignored_files_count++;
}
}
static inline BOOL is_same_file( const struct file_identity *file, const struct stat *st )
{
return st->st_dev == file->dev && st->st_ino == file->ino;
}
static inline BOOL is_ignored_file( const struct stat *st )
{
unsigned int i;
for (i = 0; i < ignored_files_count; i++)
if (is_same_file( &ignored_files[i], st )) return TRUE;
return FALSE;
}
static inline unsigned int dir_info_align( unsigned int len )
{
return (len + 7) & ~7;
}
static inline unsigned int dir_info_size( FILE_INFORMATION_CLASS class, unsigned int len )
{
switch (class)
{
case FileDirectoryInformation:
return offsetof( FILE_DIRECTORY_INFORMATION, FileName[len] );
case FileBothDirectoryInformation:
return offsetof( FILE_BOTH_DIRECTORY_INFORMATION, FileName[len] );
case FileFullDirectoryInformation:
return offsetof( FILE_FULL_DIRECTORY_INFORMATION, FileName[len] );
case FileIdBothDirectoryInformation:
return offsetof( FILE_ID_BOTH_DIRECTORY_INFORMATION, FileName[len] );
case FileIdFullDirectoryInformation:
return offsetof( FILE_ID_FULL_DIRECTORY_INFORMATION, FileName[len] );
case FileIdGlobalTxDirectoryInformation:
return offsetof( FILE_ID_GLOBAL_TX_DIR_INFORMATION, FileName[len] );
case FileNamesInformation:
return offsetof( FILE_NAMES_INFORMATION, FileName[len] );
default:
assert(0);
return 0;
}
}
static inline BOOL has_wildcard( const UNICODE_STRING *mask )
{
return (!mask ||
memchrW( mask->Buffer, '*', mask->Length / sizeof(WCHAR) ) ||
memchrW( mask->Buffer, '?', mask->Length / sizeof(WCHAR) ));
}
/* get space from the current directory data buffer, allocating a new one if necessary */
static void *get_dir_data_space( struct dir_data *data, unsigned int size )
{
struct dir_data_buffer *buffer = data->buffer;
void *ret;
if (!buffer || size > buffer->size - buffer->pos)
{
unsigned int new_size = buffer ? buffer->size * 2 : dir_data_buffer_initial_size;
if (new_size < size) new_size = size;
if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0,
offsetof( struct dir_data_buffer, data[new_size] ) ))) return NULL;
buffer->pos = 0;
buffer->size = new_size;
buffer->next = data->buffer;
data->buffer = buffer;
}
ret = buffer->data + buffer->pos;
buffer->pos += size;
return ret;
}
/* add a string to the directory data buffer */
static const char *add_dir_data_nameA( struct dir_data *data, const char *name )
{
/* keep buffer data WCHAR-aligned */
char *ptr = get_dir_data_space( data, (strlen( name ) + sizeof(WCHAR)) & ~(sizeof(WCHAR) - 1) );
if (ptr) strcpy( ptr, name );
return ptr;
}
/* add a Unicode string to the directory data buffer */
static const WCHAR *add_dir_data_nameW( struct dir_data *data, const WCHAR *name )
{
WCHAR *ptr = get_dir_data_space( data, (strlenW( name ) + 1) * sizeof(WCHAR) );
if (ptr) strcpyW( ptr, name );
return ptr;
}
/* add an entry to the directory names array */
static BOOL add_dir_data_names( struct dir_data *data, const WCHAR *long_name,
const WCHAR *short_name, const char *unix_name )
{
static const WCHAR empty[1];
struct dir_data_names *names = data->names;
if (data->count >= data->size)
{
unsigned int new_size = max( data->size * 2, dir_data_names_initial_size );
if (names) names = RtlReAllocateHeap( GetProcessHeap(), 0, names, new_size * sizeof(*names) );
else names = RtlAllocateHeap( GetProcessHeap(), 0, new_size * sizeof(*names) );
if (!names) return FALSE;
data->size = new_size;
data->names = names;
}
if (short_name[0])
{
if (!(names[data->count].short_name = add_dir_data_nameW( data, short_name ))) return FALSE;
}
else names[data->count].short_name = empty;
if (!(names[data->count].long_name = add_dir_data_nameW( data, long_name ))) return FALSE;
if (!(names[data->count].unix_name = add_dir_data_nameA( data, unix_name ))) return FALSE;
data->count++;
return TRUE;
}
/* free the complete directory data structure */
static void free_dir_data( struct dir_data *data )
{
struct dir_data_buffer *buffer, *next;
if (!data) return;
for (buffer = data->buffer; buffer; buffer = next)
{
next = buffer->next;
RtlFreeHeap( GetProcessHeap(), 0, buffer );
}
RtlFreeHeap( GetProcessHeap(), 0, data->names );
RtlFreeHeap( GetProcessHeap(), 0, data );
}
/* support for a directory queue for filesystem searches */
struct dir_name
{
struct list entry;
char name[1];
};
static struct list dir_queue = LIST_INIT( dir_queue );
static NTSTATUS add_dir_to_queue( const char *name )
{
int len = strlen( name ) + 1;
struct dir_name *dir = RtlAllocateHeap( GetProcessHeap(), 0,
FIELD_OFFSET( struct dir_name, name[len] ));
if (!dir) return STATUS_NO_MEMORY;
strcpy( dir->name, name );
list_add_tail( &dir_queue, &dir->entry );
return STATUS_SUCCESS;
}
static NTSTATUS next_dir_in_queue( char *name )
{
struct list *head = list_head( &dir_queue );
if (head)
{
struct dir_name *dir = LIST_ENTRY( head, struct dir_name, entry );
strcpy( name, dir->name );
list_remove( &dir->entry );
RtlFreeHeap( GetProcessHeap(), 0, dir );
return STATUS_SUCCESS;
}
return STATUS_OBJECT_NAME_NOT_FOUND;
}
static void flush_dir_queue(void)
{
struct list *head;
while ((head = list_head( &dir_queue )))
{
struct dir_name *dir = LIST_ENTRY( head, struct dir_name, entry );
list_remove( &dir->entry );
RtlFreeHeap( GetProcessHeap(), 0, dir );
}
}
#ifdef __ANDROID__
static char *unescape_field( char *str )
{
char *in, *out;
for (in = out = str; *in; in++, out++)
{
*out = *in;
if (in[0] == '\\')
{
if (in[1] == '\\')
{
out[0] = '\\';
in++;
}
else if (in[1] == '0' && in[2] == '4' && in[3] == '0')
{
out[0] = ' ';
in += 3;
}
else if (in[1] == '0' && in[2] == '1' && in[3] == '1')
{
out[0] = '\t';
in += 3;
}
else if (in[1] == '0' && in[2] == '1' && in[3] == '2')
{
out[0] = '\n';
in += 3;
}
else if (in[1] == '1' && in[2] == '3' && in[3] == '4')
{
out[0] = '\\';
in += 3;
}
}
}
*out = '\0';
return str;
}
static inline char *get_field( char **str )
{
char *ret;
ret = strsep( str, " \t" );
if (*str) *str += strspn( *str, " \t" );
return ret;
}
/************************************************************************
* getmntent_replacement
*
* getmntent replacement for Android.
*
* NB returned static buffer is not thread safe; protect with dir_section.
*/
static struct mntent *getmntent_replacement( FILE *f )
{
static struct mntent entry;
static char buf[4096];
char *p, *start;
do
{
if (!fgets( buf, sizeof(buf), f )) return NULL;
p = strchr( buf, '\n' );
if (p) *p = '\0';
else /* Partially unread line, move file ptr to end */
{
char tmp[1024];
while (fgets( tmp, sizeof(tmp), f ))
if (strchr( tmp, '\n' )) break;
}
start = buf + strspn( buf, " \t" );
} while (start[0] == '\0' || start[0] == '#');
p = get_field( &start );
entry.mnt_fsname = p ? unescape_field( p ) : (char *)"";
p = get_field( &start );
entry.mnt_dir = p ? unescape_field( p ) : (char *)"";
p = get_field( &start );
entry.mnt_type = p ? unescape_field( p ) : (char *)"";
p = get_field( &start );
entry.mnt_opts = p ? unescape_field( p ) : (char *)"";
p = get_field( &start );
entry.mnt_freq = p ? atoi(p) : 0;
p = get_field( &start );
entry.mnt_passno = p ? atoi(p) : 0;
return &entry;
}
#define getmntent getmntent_replacement
#endif
/***********************************************************************
* 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)
{
const char *config_dir = wine_get_config_dir();
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;
}
/***********************************************************************
* parse_mount_entries
*
* Parse mount entries looking for a given device. Helper for get_default_drive_device.
*/
#ifdef sun
#include <sys/vfstab.h>
static char *parse_vfstab_entries( FILE *f, dev_t dev, ino_t ino)
{
struct vfstab entry;
struct stat st;
char *device;
while (! getvfsent( f, &entry ))
{
/* don't even bother stat'ing network mounts, there's no meaningful device anyway */
if (!strcmp( entry.vfs_fstype, "nfs" ) ||
!strcmp( entry.vfs_fstype, "smbfs" ) ||
!strcmp( entry.vfs_fstype, "ncpfs" )) continue;
if (stat( entry.vfs_mountp, &st ) == -1) continue;
if (st.st_dev != dev || st.st_ino != ino) continue;
if (!strcmp( entry.vfs_fstype, "fd" ))
{
if ((device = strstr( entry.vfs_mntopts, "dev=" )))
{
char *p = strchr( device + 4, ',' );
if (p) *p = 0;
return device + 4;
}
}
else
return entry.vfs_special;
}
return NULL;
}
#endif
#ifdef linux
static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
{
struct mntent *entry;
struct stat st;
char *device;
while ((entry = getmntent( f )))
{
/* don't even bother stat'ing network mounts, there's no meaningful device anyway */
if (!strcmp( entry->mnt_type, "nfs" ) ||
!strcmp( entry->mnt_type, "cifs" ) ||
!strcmp( entry->mnt_type, "smbfs" ) ||
!strcmp( entry->mnt_type, "ncpfs" )) continue;
if (stat( entry->mnt_dir, &st ) == -1) continue;
if (st.st_dev != dev || st.st_ino != ino) continue;
if (!strcmp( entry->mnt_type, "supermount" ))
{
if ((device = strstr( entry->mnt_opts, "dev=" )))
{
char *p = strchr( device + 4, ',' );
if (p) *p = 0;
return device + 4;
}
}
else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode))
{
/* if device is a regular file check for a loop mount */
if ((device = strstr( entry->mnt_opts, "loop=" )))
{
char *p = strchr( device + 5, ',' );
if (p) *p = 0;
return device + 5;
}
}
else
return entry->mnt_fsname;
}
return NULL;
}
#endif
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
#include <fstab.h>
static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
{
struct fstab *entry;
struct stat st;
while ((entry = getfsent()))
{
/* don't even bother stat'ing network mounts, there's no meaningful device anyway */
if (!strcmp( entry->fs_vfstype, "nfs" ) ||
!strcmp( entry->fs_vfstype, "smbfs" ) ||
!strcmp( entry->fs_vfstype, "ncpfs" )) continue;
if (stat( entry->fs_file, &st ) == -1) continue;
if (st.st_dev != dev || st.st_ino != ino) continue;
return entry->fs_spec;
}
return NULL;
}
#endif
#ifdef sun
#include <sys/mnttab.h>
static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
{
struct mnttab entry;
struct stat st;
char *device;
while (( ! getmntent( f, &entry) ))
{
/* don't even bother stat'ing network mounts, there's no meaningful device anyway */
if (!strcmp( entry.mnt_fstype, "nfs" ) ||
!strcmp( entry.mnt_fstype, "smbfs" ) ||
!strcmp( entry.mnt_fstype, "ncpfs" )) continue;
if (stat( entry.mnt_mountp, &st ) == -1) continue;
if (st.st_dev != dev || st.st_ino != ino) continue;
if (!strcmp( entry.mnt_fstype, "fd" ))
{
if ((device = strstr( entry.mnt_mntopts, "dev=" )))
{
char *p = strchr( device + 4, ',' );
if (p) *p = 0;
return device + 4;
}
}
else
return entry.mnt_special;
}
return NULL;
}
#endif
/***********************************************************************
* get_default_drive_device
*
* Return the default device to use for a given drive mount point.
*/
static char *get_default_drive_device( const char *root )
{
char *ret = NULL;
#ifdef linux
FILE *f;
char *device = NULL;
int fd, res = -1;
struct stat st;
/* try to open it first to force it to get mounted */
if ((fd = open( root, O_RDONLY | O_DIRECTORY )) != -1)
{
res = fstat( fd, &st );
close( fd );
}
/* now try normal stat just in case */
if (res == -1) res = stat( root, &st );
if (res == -1) return NULL;
RtlEnterCriticalSection( &dir_section );
#ifdef __ANDROID__
if ((f = fopen( "/proc/mounts", "r" )))
{
device = parse_mount_entries( f, st.st_dev, st.st_ino );
fclose( f );
}
#else
if ((f = fopen( "/etc/mtab", "r" )))
{
device = parse_mount_entries( f, st.st_dev, st.st_ino );
fclose( f );
}
/* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
if (!device && (f = fopen( "/etc/fstab", "r" )))
{
device = parse_mount_entries( f, st.st_dev, st.st_ino );
fclose( f );
}
#endif
if (device)
{
ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
if (ret) strcpy( ret, device );
}
RtlLeaveCriticalSection( &dir_section );
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__ ) || defined(__DragonFly__)
char *device = NULL;
int fd, res = -1;
struct stat st;
/* try to open it first to force it to get mounted */
if ((fd = open( root, O_RDONLY )) != -1)
{
res = fstat( fd, &st );
close( fd );
}
/* now try normal stat just in case */
if (res == -1) res = stat( root, &st );
if (res == -1) return NULL;
RtlEnterCriticalSection( &dir_section );
/* The FreeBSD parse_mount_entries doesn't require a file argument, so just
* pass NULL. Leave the argument in for symmetry.
*/
device = parse_mount_entries( NULL, st.st_dev, st.st_ino );
if (device)
{
ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
if (ret) strcpy( ret, device );
}
RtlLeaveCriticalSection( &dir_section );
#elif defined( sun )
FILE *f;
char *device = NULL;
int fd, res = -1;
struct stat st;
/* try to open it first to force it to get mounted */
if ((fd = open( root, O_RDONLY )) != -1)
{
res = fstat( fd, &st );
close( fd );
}
/* now try normal stat just in case */
if (res == -1) res = stat( root, &st );
if (res == -1) return NULL;
RtlEnterCriticalSection( &dir_section );
if ((f = fopen( "/etc/mnttab", "r" )))
{
device = parse_mount_entries( f, st.st_dev, st.st_ino);
fclose( f );
}
/* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
if (!device && (f = fopen( "/etc/vfstab", "r" )))
{
device = parse_vfstab_entries( f, st.st_dev, st.st_ino );
fclose( f );
}
if (device)
{
ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
if (ret) strcpy( ret, device );
}
RtlLeaveCriticalSection( &dir_section );
#elif defined(__APPLE__)
struct statfs *mntStat;
struct stat st;
int i;
int mntSize;
dev_t dev;
ino_t ino;
static const char path_bsd_device[] = "/dev/disk";
int res;
res = stat( root, &st );
if (res == -1) return NULL;
dev = st.st_dev;
ino = st.st_ino;
RtlEnterCriticalSection( &dir_section );
mntSize = getmntinfo(&mntStat, MNT_NOWAIT);
for (i = 0; i < mntSize && !ret; i++)
{
if (stat(mntStat[i].f_mntonname, &st ) == -1) continue;
if (st.st_dev != dev || st.st_ino != ino) continue;
/* FIXME add support for mounted network drive */
if ( strncmp(mntStat[i].f_mntfromname, path_bsd_device, strlen(path_bsd_device)) == 0)
{
/* set return value to the corresponding raw BSD node */
ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mntStat[i].f_mntfromname) + 2 /* 2 : r and \0 */ );
if (ret)
{
strcpy(ret, "/dev/r");
strcat(ret, mntStat[i].f_mntfromname+sizeof("/dev/")-1);
}
}
}
RtlLeaveCriticalSection( &dir_section );
#else
static int warned;
if (!warned++) FIXME( "auto detection of DOS devices not supported on this platform\n" );
#endif
return ret;
}
/***********************************************************************
* get_device_mount_point
*
* Return the current mount point for a device.
*/
static char *get_device_mount_point( dev_t dev )
{
char *ret = NULL;
#ifdef linux
FILE *f;
RtlEnterCriticalSection( &dir_section );
#ifdef __ANDROID__
if ((f = fopen( "/proc/mounts", "r" )))
#else
if ((f = fopen( "/etc/mtab", "r" )))
#endif
{
struct mntent *entry;
struct stat st;
char *p, *device;
while ((entry = getmntent( f )))
{
/* don't even bother stat'ing network mounts, there's no meaningful device anyway */
if (!strcmp( entry->mnt_type, "nfs" ) ||
!strcmp( entry->mnt_type, "cifs" ) ||
!strcmp( entry->mnt_type, "smbfs" ) ||
!strcmp( entry->mnt_type, "ncpfs" )) continue;
if (!strcmp( entry->mnt_type, "supermount" ))
{
if ((device = strstr( entry->mnt_opts, "dev=" )))
{
device += 4;
if ((p = strchr( device, ',' ))) *p = 0;
}
}
else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode))
{
/* if device is a regular file check for a loop mount */
if ((device = strstr( entry->mnt_opts, "loop=" )))
{
device += 5;
if ((p = strchr( device, ',' ))) *p = 0;
}
}
else device = entry->mnt_fsname;
if (device && !stat( device, &st ) && S_ISBLK(st.st_mode) && st.st_rdev == dev)
{
ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry->mnt_dir) + 1 );
if (ret) strcpy( ret, entry->mnt_dir );
break;
}
}
fclose( f );
}
RtlLeaveCriticalSection( &dir_section );
#elif defined(__APPLE__)
struct statfs *entry;
struct stat st;
int i, size;
RtlEnterCriticalSection( &dir_section );
size = getmntinfo( &entry, MNT_NOWAIT );
for (i = 0; i < size; i++)
{
if (stat( entry[i].f_mntfromname, &st ) == -1) continue;
if (S_ISBLK(st.st_mode) && st.st_rdev == dev)
{
ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry[i].f_mntonname) + 1 );
if (ret) strcpy( ret, entry[i].f_mntonname );
break;
}
}
RtlLeaveCriticalSection( &dir_section );
#else
static int warned;
if (!warned++) FIXME( "unmounting devices not supported on this platform\n" );
#endif
return ret;
}
#if defined(HAVE_GETATTRLIST) && defined(ATTR_VOL_CAPABILITIES) && \
defined(VOL_CAPABILITIES_FORMAT) && defined(VOL_CAP_FMT_CASE_SENSITIVE)
struct get_fsid
{
ULONG size;
dev_t dev;
fsid_t fsid;
};
struct fs_cache
{
dev_t dev;
fsid_t fsid;
BOOLEAN case_sensitive;
} fs_cache[64];
struct vol_caps
{
ULONG size;
vol_capabilities_attr_t caps;
};
/***********************************************************************
* look_up_fs_cache
*
* Checks if the specified file system is in the cache.
*/
static struct fs_cache *look_up_fs_cache( dev_t dev )
{
int i;
for (i = 0; i < sizeof(fs_cache)/sizeof(fs_cache[0]); i++)
if (fs_cache[i].dev == dev)
return fs_cache+i;
return NULL;
}
/***********************************************************************
* add_fs_cache
*
* Adds the specified file system to the cache.
*/
static void add_fs_cache( dev_t dev, fsid_t fsid, BOOLEAN case_sensitive )
{
int i;
struct fs_cache *entry = look_up_fs_cache( dev );
static int once = 0;
if (entry)
{
/* Update the cache */
entry->fsid = fsid;
entry->case_sensitive = case_sensitive;
return;
}
/* Add a new entry */
for (i = 0; i < sizeof(fs_cache)/sizeof(fs_cache[0]); i++)
if (fs_cache[i].dev == 0)
{
/* This entry is empty, use it */
fs_cache[i].dev = dev;
fs_cache[i].fsid = fsid;
fs_cache[i].case_sensitive = case_sensitive;
return;
}
/* Cache is out of space, warn */
if (!once++)
WARN( "FS cache is out of space, expect performance problems\n" );
}
/***********************************************************************
* get_dir_case_sensitivity_attr
*
* Checks if the volume containing the specified directory is case
* sensitive or not. Uses getattrlist(2).
*/
static int get_dir_case_sensitivity_attr( const char *dir )
{
char *mntpoint;
struct attrlist attr;
struct vol_caps caps;
struct get_fsid get_fsid;
struct fs_cache *entry;
/* First get the FS ID of the volume */
attr.bitmapcount = ATTR_BIT_MAP_COUNT;
attr.reserved = 0;
attr.commonattr = ATTR_CMN_DEVID|ATTR_CMN_FSID;
attr.volattr = attr.dirattr = attr.fileattr = attr.forkattr = 0;
get_fsid.size = 0;
if (getattrlist( dir, &attr, &get_fsid, sizeof(get_fsid), 0 ) != 0 ||
get_fsid.size != sizeof(get_fsid))
return -1;
/* Try to look it up in the cache */
entry = look_up_fs_cache( get_fsid.dev );
if (entry && !memcmp( &entry->fsid, &get_fsid.fsid, sizeof(fsid_t) ))
/* Cache lookup succeeded */
return entry->case_sensitive;
/* Cache is stale at this point, we have to update it */
mntpoint = get_device_mount_point( get_fsid.dev );
/* Now look up the case-sensitivity */
attr.commonattr = 0;
attr.volattr = ATTR_VOL_INFO|ATTR_VOL_CAPABILITIES;
if (getattrlist( mntpoint, &attr, &caps, sizeof(caps), 0 ) < 0)
{
RtlFreeHeap( GetProcessHeap(), 0, mntpoint );
add_fs_cache( get_fsid.dev, get_fsid.fsid, TRUE );
return TRUE;
}
RtlFreeHeap( GetProcessHeap(), 0, mntpoint );
if (caps.size == sizeof(caps) &&
(caps.caps.valid[VOL_CAPABILITIES_FORMAT] &
(VOL_CAP_FMT_CASE_SENSITIVE | VOL_CAP_FMT_CASE_PRESERVING)) ==
(VOL_CAP_FMT_CASE_SENSITIVE | VOL_CAP_FMT_CASE_PRESERVING))
{
BOOLEAN ret;
if ((caps.caps.capabilities[VOL_CAPABILITIES_FORMAT] &
VOL_CAP_FMT_CASE_SENSITIVE) != VOL_CAP_FMT_CASE_SENSITIVE)
ret = FALSE;
else
ret = TRUE;
/* Update the cache */
add_fs_cache( get_fsid.dev, get_fsid.fsid, ret );
return ret;
}
return FALSE;
}
#endif
/***********************************************************************
* get_dir_case_sensitivity_stat
*
* Checks if the volume containing the specified directory is case
* sensitive or not. Uses statfs(2) or statvfs(2).
*/
static BOOLEAN get_dir_case_sensitivity_stat( const char *dir )
{
#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
struct statfs stfs;
if (statfs( dir, &stfs ) == -1) return FALSE;
/* Assume these file systems are always case insensitive on Mac OS.
* For FreeBSD, only assume CIOPFS is case insensitive (AFAIK, Mac OS
* is the only UNIX that supports case-insensitive lookup).
*/
if (!strcmp( stfs.f_fstypename, "fusefs" ) &&
!strncmp( stfs.f_mntfromname, "ciopfs", 5 ))
return FALSE;
#ifdef __APPLE__
if (!strcmp( stfs.f_fstypename, "msdos" ) ||
!strcmp( stfs.f_fstypename, "cd9660" ) ||
!strcmp( stfs.f_fstypename, "udf" ) ||
!strcmp( stfs.f_fstypename, "ntfs" ) ||
!strcmp( stfs.f_fstypename, "smbfs" ))
return FALSE;
#ifdef _DARWIN_FEATURE_64_BIT_INODE
if (!strcmp( stfs.f_fstypename, "hfs" ) && (stfs.f_fssubtype == 0 ||
stfs.f_fssubtype == 1 ||
stfs.f_fssubtype == 128))
return FALSE;
#else
/* The field says "reserved", but a quick look at the kernel source
* tells us that this "reserved" field is really the same as the
* "fssubtype" field from the inode64 structure (see munge_statfs()
* in <xnu-source>/bsd/vfs/vfs_syscalls.c).
*/
if (!strcmp( stfs.f_fstypename, "hfs" ) && (stfs.f_reserved1 == 0 ||
stfs.f_reserved1 == 1 ||
stfs.f_reserved1 == 128))
return FALSE;
#endif
#endif
return TRUE;
#elif defined(__NetBSD__)
struct statvfs stfs;
if (statvfs( dir, &stfs ) == -1) return FALSE;
/* Only assume CIOPFS is case insensitive. */
if (strcmp( stfs.f_fstypename, "fusefs" ) ||
strncmp( stfs.f_mntfromname, "ciopfs", 5 ))
return TRUE;
return FALSE;
#elif defined(__linux__)
struct statfs stfs;
struct stat st;
char *cifile;
/* Only assume CIOPFS is case insensitive. */
if (statfs( dir, &stfs ) == -1) return FALSE;
if (stfs.f_type != 0x65735546 /* FUSE_SUPER_MAGIC */)
return TRUE;
/* Normally, we'd have to parse the mtab to find out exactly what
* kind of FUSE FS this is. But, someone on wine-devel suggested
* a shortcut. We'll stat a special file in the directory. If it's
* there, we'll assume it's a CIOPFS, else not.
* This will break if somebody puts a file named ".ciopfs" in a non-
* CIOPFS directory.
*/
cifile = RtlAllocateHeap( GetProcessHeap(), 0, strlen( dir )+sizeof("/.ciopfs") );
if (!cifile) return TRUE;
strcpy( cifile, dir );
strcat( cifile, "/.ciopfs" );
if (stat( cifile, &st ) == 0)
{
RtlFreeHeap( GetProcessHeap(), 0, cifile );
return FALSE;
}
RtlFreeHeap( GetProcessHeap(), 0, cifile );
return TRUE;
#else
return TRUE;
#endif
}
/***********************************************************************
* get_dir_case_sensitivity
*
* Checks if the volume containing the specified directory is case
* sensitive or not. Uses statfs(2) or statvfs(2).
*/
static BOOLEAN get_dir_case_sensitivity( const char *dir )
{
#if defined(HAVE_GETATTRLIST) && defined(ATTR_VOL_CAPABILITIES) && \
defined(VOL_CAPABILITIES_FORMAT) && defined(VOL_CAP_FMT_CASE_SENSITIVE)
int case_sensitive = get_dir_case_sensitivity_attr( dir );
if (case_sensitive != -1) return case_sensitive;
#endif
return get_dir_case_sensitivity_stat( dir );
}
/***********************************************************************
* init_options
*
* Initialize the show_dot_files options.
*/
static DWORD WINAPI init_options( RTL_RUN_ONCE *once, void *param, void **context )
{
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 );
/* a couple of directories that we don't want to return in directory searches */
ignore_file( wine_get_config_dir() );
ignore_file( "/dev" );
ignore_file( "/proc" );
#ifdef linux
ignore_file( "/sys" );
#endif
return TRUE;
}
/***********************************************************************
* DIR_is_hidden_file
*
* Check if the specified file should be hidden based on its name and the show dot files option.
*/
BOOL DIR_is_hidden_file( const UNICODE_STRING *name )
{
WCHAR *p, *end;
RtlRunOnceExecuteOnce( &init_once, init_options, NULL, NULL );
if (show_dot_files) return FALSE;
end = p = name->Buffer + name->Length/sizeof(WCHAR);
while (p > name->Buffer && IS_SEPARATOR(p[-1])) p--;
while (p > name->Buffer && !IS_SEPARATOR(p[-1])) p--;
if (p == end || *p != '.') return FALSE;
/* make sure it isn't '.' or '..' */
if (p + 1 == end) return FALSE;
if (p[1] == '.' && p + 2 == end) return FALSE;
return TRUE;
}
/***********************************************************************
* hash_short_file_name
*
* Transform a Unix file name into a hashed DOS name. If the name is a valid
* DOS name, it is converted to upper-case; otherwise it is replaced by a
* hashed version that fits in 8.3 format.
* 'buffer' must be at least 12 characters long.
* Returns length of short name in bytes; short name is NOT null-terminated.
*/
static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer )
{
static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
LPCWSTR p, ext, end = name->Buffer + name->Length / sizeof(WCHAR);
LPWSTR dst;
unsigned short hash;
int i;
/* Compute the hash code of the file name */
/* If you know something about hash functions, feel free to */
/* insert a better algorithm here... */
if (!is_case_sensitive)
{
for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p) ^ (tolowerW(p[1]) << 8);
hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p); /* Last character */
}
else
{
for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
hash = (hash << 3) ^ (hash >> 5) ^ *p ^ (p[1] << 8);
hash = (hash << 3) ^ (hash >> 5) ^ *p; /* Last character */
}
/* Find last dot for start of the extension */
for (p = name->Buffer + 1, ext = NULL; p < end - 1; p++) if (*p == '.') ext = p;
/* Copy first 4 chars, replacing invalid chars with '_' */
for (i = 4, p = name->Buffer, dst = buffer; i > 0; i--, p++)
{
if (p == end || p == ext) break;
*dst++ = is_invalid_dos_char(*p) ? '_' : toupperW(*p);
}
/* Pad to 5 chars with '~' */
while (i-- >= 0) *dst++ = '~';
/* Insert hash code converted to 3 ASCII chars */
*dst++ = hash_chars[(hash >> 10) & 0x1f];
*dst++ = hash_chars[(hash >> 5) & 0x1f];
*dst++ = hash_chars[hash & 0x1f];
/* Copy the first 3 chars of the extension (if any) */
if (ext)
{
*dst++ = '.';
for (i = 3, ext++; (i > 0) && ext < end; i--, ext++)
*dst++ = is_invalid_dos_char(*ext) ? '_' : toupperW(*ext);
}
return dst - buffer;
}
/***********************************************************************
* match_filename
*
* Check a long file name against a mask.
*
* Tests (done in W95 DOS shell - case insensitive):
* *.txt test1.test.txt *
* *st1* test1.txt *
* *.t??????.t* test1.ta.tornado.txt *
* *tornado* test1.ta.tornado.txt *
* t*t test1.ta.tornado.txt *
* ?est* test1.txt *
* ?est??? test1.txt -
* *test1.txt* test1.txt *
* h?l?o*t.dat hellothisisatest.dat *
*/
static BOOLEAN match_filename( const UNICODE_STRING *name_str, const UNICODE_STRING *mask_str )
{
BOOL mismatch;
const WCHAR *name = name_str->Buffer;
const WCHAR *mask = mask_str->Buffer;
const WCHAR *name_end = name + name_str->Length / sizeof(WCHAR);
const WCHAR *mask_end = mask + mask_str->Length / sizeof(WCHAR);
const WCHAR *lastjoker = NULL;
const WCHAR *next_to_retry = NULL;
while (name < name_end && mask < mask_end)
{
switch(*mask)
{
case '*':
mask++;
while (mask < mask_end && *mask == '*') mask++; /* Skip consecutive '*' */
if (mask == mask_end) return TRUE; /* end of mask is all '*', so match */
lastjoker = mask;
/* skip to the next match after the joker(s) */
if (is_case_sensitive)
while (name < name_end && (*name != *mask)) name++;
else
while (name < name_end && (toupperW(*name) != toupperW(*mask))) name++;
next_to_retry = name;
break;
case '?':
mask++;
name++;
break;
default:
if (is_case_sensitive) mismatch = (*mask != *name);
else mismatch = (toupperW(*mask) != toupperW(*name));
if (!mismatch)
{
mask++;
name++;
if (mask == mask_end)
{
if (name == name_end) return TRUE;
if (lastjoker) mask = lastjoker;
}
}
else /* mismatch ! */
{
if (lastjoker) /* we had an '*', so we can try unlimitedly */
{
mask = lastjoker;
/* this scan sequence was a mismatch, so restart
* 1 char after the first char we checked last time */
next_to_retry++;
name = next_to_retry;
}
else return FALSE; /* bad luck */
}
break;
}
}
while (mask < mask_end && ((*mask == '.') || (*mask == '*')))
mask++; /* Ignore trailing '.' or '*' in mask */
return (name == name_end && mask == mask_end);
}
/***********************************************************************
* append_entry
*
* Add a file to the directory data if it matches the mask.
*/
static BOOL append_entry( struct dir_data *data, const char *long_name,
const char *short_name, const UNICODE_STRING *mask )
{
int i, long_len, short_len;
WCHAR long_nameW[MAX_DIR_ENTRY_LEN + 1];
WCHAR short_nameW[13];
UNICODE_STRING str;
long_len = ntdll_umbstowcs( 0, long_name, strlen(long_name), long_nameW, MAX_DIR_ENTRY_LEN );
if (long_len == -1) return TRUE;
long_nameW[long_len] = 0;
str.Buffer = long_nameW;
str.Length = long_len * sizeof(WCHAR);
str.MaximumLength = sizeof(long_nameW);
if (short_name)
{
short_len = ntdll_umbstowcs( 0, short_name, strlen(short_name),
short_nameW, sizeof(short_nameW) / sizeof(WCHAR) - 1 );
if (short_len == -1) short_len = sizeof(short_nameW) / sizeof(WCHAR) - 1;
for (i = 0; i < short_len; i++) short_nameW[i] = toupperW( short_nameW[i] );
}
else /* generate a short name if necessary */
{
BOOLEAN spaces;
short_len = 0;
if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
short_len = hash_short_file_name( &str, short_nameW );
}
short_nameW[short_len] = 0;
TRACE( "long %s short %s mask %s\n",
debugstr_w( long_nameW ), debugstr_w( short_nameW ), debugstr_us( mask ));
if (mask && !match_filename( &str, mask ))
{
if (!short_len) return TRUE; /* no short name to match */
str.Buffer = short_nameW;
str.Length = short_len * sizeof(WCHAR);
str.MaximumLength = sizeof(short_nameW);
if (!match_filename( &str, mask )) return TRUE;
}
return add_dir_data_names( data, long_nameW, short_nameW, long_name );
}
/***********************************************************************
* get_dir_data_entry
*
* Return a directory entry from the cached data.
*/
static NTSTATUS get_dir_data_entry( struct dir_data *dir_data, void *info_ptr, IO_STATUS_BLOCK *io,
ULONG max_length, FILE_INFORMATION_CLASS class,
union file_directory_info **last_info )
{
const struct dir_data_names *names = &dir_data->names[dir_data->pos];
union file_directory_info *info;
struct stat st;
ULONG name_len, start, dir_size, attributes;
if (get_file_info( names->unix_name, &st, &attributes ) == -1)
{
TRACE( "file no longer exists %s\n", names->unix_name );
return STATUS_SUCCESS;
}
if (is_ignored_file( &st ))
{
TRACE( "ignoring file %s\n", names->unix_name );
return STATUS_SUCCESS;
}
start = dir_info_align( io->Information );
dir_size = dir_info_size( class, 0 );
if (start + dir_size > max_length) return STATUS_MORE_ENTRIES;
max_length -= start + dir_size;
name_len = strlenW( names->long_name ) * sizeof(WCHAR);
/* if this is not the first entry, fail; the first entry is always returned (but truncated) */
if (*last_info && name_len > max_length) return STATUS_MORE_ENTRIES;
info = (union file_directory_info *)((char *)info_ptr + start);
info->dir.NextEntryOffset = 0;
info->dir.FileIndex = 0; /* NTFS always has 0 here, so let's not bother with it */
/* all the structures except FileNamesInformation start with a FileDirectoryInformation layout */
if (class != FileNamesInformation)
{
if (st.st_dev != dir_data->id.dev) st.st_ino = 0; /* ignore inode if on a different device */
if (!show_dot_files && names->long_name[0] == '.' && names->long_name[1] &&
(names->long_name[1] != '.' || names->long_name[2]))
attributes |= FILE_ATTRIBUTE_HIDDEN;
fill_file_info( &st, attributes, info, class );
}
switch (class)
{
case FileDirectoryInformation:
info->dir.FileNameLength = name_len;
break;
case FileFullDirectoryInformation:
info->full.EaSize = 0; /* FIXME */
info->full.FileNameLength = name_len;
break;
case FileIdFullDirectoryInformation:
info->id_full.EaSize = 0; /* FIXME */
info->id_full.FileNameLength = name_len;
break;
case FileBothDirectoryInformation:
info->both.EaSize = 0; /* FIXME */
info->both.ShortNameLength = strlenW( names->short_name ) * sizeof(WCHAR);
memcpy( info->both.ShortName, names->short_name, info->both.ShortNameLength );
info->both.FileNameLength = name_len;
break;
case FileIdBothDirectoryInformation:
info->id_both.EaSize = 0; /* FIXME */
info->id_both.ShortNameLength = strlenW( names->short_name ) * sizeof(WCHAR);
memcpy( info->id_both.ShortName, names->short_name, info->id_both.ShortNameLength );
info->id_both.FileNameLength = name_len;
break;
case FileIdGlobalTxDirectoryInformation:
info->id_tx.TxInfoFlags = 0;
info->id_tx.FileNameLength = name_len;
break;
case FileNamesInformation:
info->names.FileNameLength = name_len;
break;
default:
assert(0);
return 0;
}
memcpy( (char *)info + dir_size, names->long_name, min( name_len, max_length ) );
io->Information = start + dir_size + min( name_len, max_length );
if (*last_info) (*last_info)->next = (char *)info - (char *)*last_info;
*last_info = info;
return name_len > max_length ? STATUS_BUFFER_OVERFLOW : STATUS_SUCCESS;
}
#ifdef VFAT_IOCTL_READDIR_BOTH
/***********************************************************************
* start_vfat_ioctl
*
* Wrapper for the VFAT ioctl to work around various kernel bugs.
* dir_section must be held by caller.
*/
static KERNEL_DIRENT *start_vfat_ioctl( int fd )
{
static KERNEL_DIRENT *de;
int res;
if (!de)
{
SIZE_T size = 2 * sizeof(*de) + page_size;
void *addr = NULL;
if (NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 1, &size, MEM_RESERVE, PAGE_READWRITE ))
return NULL;
/* commit only the size needed for the dir entries */
/* this leaves an extra unaccessible page, which should make the kernel */
/* fail with -EFAULT before it stomps all over our memory */
de = addr;
size = 2 * sizeof(*de);
NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 1, &size, MEM_COMMIT, PAGE_READWRITE );
}
/* set d_reclen to 65535 to work around an AFS kernel bug */
de[0].d_reclen = 65535;
res = ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de );
if (res == -1)
{
if (errno != ENOENT) return NULL; /* VFAT ioctl probably not supported */
de[0].d_reclen = 0; /* eof */
}
else if (!res && de[0].d_reclen == 65535) return NULL; /* AFS bug */
return de;
}
/***********************************************************************
* read_directory_vfat
*
* Read a directory using the VFAT ioctl; helper for NtQueryDirectoryFile.
*/
static NTSTATUS read_directory_data_vfat( struct dir_data *data, int fd, const UNICODE_STRING *mask )
{
char *short_name, *long_name;
size_t len;
KERNEL_DIRENT *de;
NTSTATUS status = STATUS_NO_MEMORY;
off_t old_pos = lseek( fd, 0, SEEK_CUR );
if (!(de = start_vfat_ioctl( fd ))) return STATUS_NOT_SUPPORTED;
lseek( fd, 0, SEEK_SET );
if (!append_entry( data, ".", NULL, mask )) goto done;
if (!append_entry( data, "..", NULL, mask )) goto done;
while (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) != -1)
{
if (!de[0].d_reclen) break; /* eof */
/* make sure names are null-terminated to work around an x86-64 kernel bug */
len = min( de[0].d_reclen, sizeof(de[0].d_name) - 1 );
de[0].d_name[len] = 0;
len = min( de[1].d_reclen, sizeof(de[1].d_name) - 1 );
de[1].d_name[len] = 0;
if (!strcmp( de[0].d_name, "." ) || !strcmp( de[0].d_name, ".." )) continue;
if (de[1].d_name[0])
{
short_name = de[0].d_name;
long_name = de[1].d_name;
}
else
{
long_name = de[0].d_name;
short_name = NULL;
}
if (!append_entry( data, long_name, short_name, mask )) goto done;
}
status = STATUS_SUCCESS;
done:
lseek( fd, old_pos, SEEK_SET );
return status;
}
#endif /* VFAT_IOCTL_READDIR_BOTH */
#ifdef HAVE_GETATTRLIST
/***********************************************************************
* read_directory_getattrlist
*
* Read a single file from a directory by determining whether the file
* identified by mask exists using getattrlist.
*/
static NTSTATUS read_directory_data_getattrlist( struct dir_data *data, const char *unix_name )
{
struct attrlist attrlist;
#include "pshpack4.h"
struct
{
u_int32_t length;
struct attrreference name_reference;
fsobj_type_t type;
char name[NAME_MAX * 3 + 1];
} buffer;
#include "poppack.h"
memset( &attrlist, 0, sizeof(attrlist) );
attrlist.bitmapcount = ATTR_BIT_MAP_COUNT;
attrlist.commonattr = ATTR_CMN_NAME | ATTR_CMN_OBJTYPE;
if (getattrlist( unix_name, &attrlist, &buffer, sizeof(buffer), FSOPT_NOFOLLOW ) == -1)
return STATUS_NO_SUCH_FILE;
/* If unix_name named a symlink, the above may have succeeded even if the symlink is broken.
Check that with another call without FSOPT_NOFOLLOW. We don't ask for any attributes. */
if (buffer.type == VLNK)
{
u_int32_t dummy;
attrlist.commonattr = 0;
if (getattrlist( unix_name, &attrlist, &dummy, sizeof(dummy), 0 ) == -1)
return STATUS_NO_SUCH_FILE;
}
TRACE( "found %s\n", buffer.name );
if (!append_entry( data, buffer.name, NULL, NULL )) return STATUS_NO_MEMORY;
return STATUS_SUCCESS;
}
#endif /* HAVE_GETATTRLIST */
/***********************************************************************
* read_directory_stat
*
* Read a single file from a directory by determining whether the file
* identified by mask exists using stat.
*/
static NTSTATUS read_directory_data_stat( struct dir_data *data, const char *unix_name )
{
struct stat st;
/* if the file system is not case sensitive we can't find the actual name through stat() */
if (!get_dir_case_sensitivity(".")) return STATUS_NO_SUCH_FILE;
if (stat( unix_name, &st ) == -1) return STATUS_NO_SUCH_FILE;
TRACE( "found %s\n", unix_name );
if (!append_entry( data, unix_name, NULL, NULL )) return STATUS_NO_MEMORY;
return STATUS_SUCCESS;
}
/***********************************************************************
* read_directory_readdir
*
* Read a directory using the POSIX readdir interface; helper for NtQueryDirectoryFile.
*/
static NTSTATUS read_directory_data_readdir( struct dir_data *data, const UNICODE_STRING *mask )
{
struct dirent *de;
NTSTATUS status = STATUS_NO_MEMORY;
DIR *dir = opendir( "." );
if (!dir) return STATUS_NO_SUCH_FILE;
if (!append_entry( data, ".", NULL, mask )) goto done;
if (!append_entry( data, "..", NULL, mask )) goto done;
while ((de = readdir( dir )))
{
if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue;
if (!append_entry( data, de->d_name, NULL, mask )) goto done;
}
status = STATUS_SUCCESS;
done:
closedir( dir );
return status;
}
/***********************************************************************
* read_directory_data
*
* Read the full contents of a directory, using one of the above helper functions.
*/
static NTSTATUS read_directory_data( struct dir_data *data, int fd, const UNICODE_STRING *mask )
{
NTSTATUS status;
#ifdef VFAT_IOCTL_READDIR_BOTH
if (!(status = read_directory_data_vfat( data, fd, mask ))) return status;
#endif
if (!has_wildcard( mask ))
{
/* convert the mask to a Unix name and check for it */
int ret, used_default;
char unix_name[MAX_DIR_ENTRY_LEN * 3 + 1];
ret = ntdll_wcstoumbs( 0, mask->Buffer, mask->Length / sizeof(WCHAR),
unix_name, sizeof(unix_name) - 1, NULL, &used_default );
if (ret > 0 && !used_default)
{
unix_name[ret] = 0;
#ifdef HAVE_GETATTRLIST
if (!(status = read_directory_data_getattrlist( data, unix_name ))) return status;
#endif
if (!(status = read_directory_data_stat( data, unix_name ))) return status;
}
}
return read_directory_data_readdir( data, mask );
}
/* compare file names for directory sorting */
static int name_compare( const void *a, const void *b )
{
const struct dir_data_names *file_a = (const struct dir_data_names *)a;
const struct dir_data_names *file_b = (const struct dir_data_names *)b;
int ret = RtlCompareUnicodeStrings( file_a->long_name, strlenW(file_a->long_name),
file_b->long_name, strlenW(file_b->long_name), TRUE );
if (!ret) ret = strcmpW( file_a->long_name, file_b->long_name );
return ret;
}
/***********************************************************************
* init_cached_dir_data
*
* Initialize the cached directory contents.
*/
static NTSTATUS init_cached_dir_data( struct dir_data **data_ret, int fd, const UNICODE_STRING *mask )
{
struct dir_data *data;
struct stat st;
NTSTATUS status;
unsigned int i;
if (!(data = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
return STATUS_NO_MEMORY;
if ((status = read_directory_data( data, fd, mask )))
{
free_dir_data( data );
return status;
}
/* sort filenames, but not "." and ".." */
i = 0;
if (i < data->count && !strcmp( data->names[i].unix_name, "." )) i++;
if (i < data->count && !strcmp( data->names[i].unix_name, ".." )) i++;
if (i < data->count) qsort( data->names + i, data->count - i, sizeof(*data->names), name_compare );
if (data->count)
{
/* release unused space */
if (data->buffer)
RtlReAllocateHeap( GetProcessHeap(), HEAP_REALLOC_IN_PLACE_ONLY, data->buffer,
offsetof( struct dir_data_buffer, data[data->buffer->pos] ));
if (data->count < data->size)
RtlReAllocateHeap( GetProcessHeap(), HEAP_REALLOC_IN_PLACE_ONLY, data->names,
data->count * sizeof(*data->names) );
if (!fstat( fd, &st ))
{
data->id.dev = st.st_dev;
data->id.ino = st.st_ino;
}
}
TRACE( "mask %s found %u files\n", debugstr_us( mask ), data->count );
for (i = 0; i < data->count; i++)
TRACE( "%s %s\n", debugstr_w(data->names[i].long_name), debugstr_w(data->names[i].short_name) );
*data_ret = data;
return data->count ? STATUS_SUCCESS : STATUS_NO_SUCH_FILE;
}
/***********************************************************************
* get_cached_dir_data
*
* Retrieve the cached directory data, or initialize it if necessary.
*/
static NTSTATUS get_cached_dir_data( HANDLE handle, struct dir_data **data_ret, int fd,
const UNICODE_STRING *mask )
{
unsigned int i;
int entry = -1, free_entries[16];
NTSTATUS status;
SERVER_START_REQ( get_directory_cache_entry )
{
req->handle = wine_server_obj_handle( handle );
wine_server_set_reply( req, free_entries, sizeof(free_entries) );
if (!(status = wine_server_call( req ))) entry = reply->entry;
for (i = 0; i < wine_server_reply_size( reply ) / sizeof(*free_entries); i++)
{
int free_idx = free_entries[i];
if (free_idx < dir_data_cache_size)
{
free_dir_data( dir_data_cache[free_idx] );
dir_data_cache[free_idx] = NULL;
}
}
}
SERVER_END_REQ;
if (status)
{
if (status == STATUS_SHARING_VIOLATION) FIXME( "shared directory handle not supported yet\n" );
return status;
}
if (entry >= dir_data_cache_size)
{
unsigned int size = max( dir_data_cache_initial_size, max( dir_data_cache_size * 2, entry + 1 ) );
struct dir_data **new_cache;
if (dir_data_cache)
new_cache = RtlReAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, dir_data_cache,
size * sizeof(*new_cache) );
else
new_cache = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, size * sizeof(*new_cache) );
if (!new_cache) return STATUS_NO_MEMORY;
dir_data_cache = new_cache;
dir_data_cache_size = size;
}
if (!dir_data_cache[entry]) status = init_cached_dir_data( &dir_data_cache[entry], fd, mask );
*data_ret = dir_data_cache[entry];
return status;
}
/******************************************************************************
* NtQueryDirectoryFile [NTDLL.@]
* ZwQueryDirectoryFile [NTDLL.@]
*/
NTSTATUS WINAPI 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 )
{
int cwd, fd, needs_close;
struct dir_data *data;
NTSTATUS status;
TRACE("(%p %p %p %p %p %p 0x%08x 0x%08x 0x%08x %s 0x%08x\n",
handle, event, apc_routine, apc_context, io, buffer,
length, info_class, single_entry, debugstr_us(mask),
restart_scan);
if (event || apc_routine)
{
FIXME( "Unsupported yet option\n" );
return STATUS_NOT_IMPLEMENTED;
}
switch (info_class)
{
case FileDirectoryInformation:
case FileBothDirectoryInformation:
case FileFullDirectoryInformation:
case FileIdBothDirectoryInformation:
case FileIdFullDirectoryInformation:
case FileIdGlobalTxDirectoryInformation:
case FileNamesInformation:
if (length < dir_info_align( dir_info_size( info_class, 1 ))) return STATUS_INFO_LENGTH_MISMATCH;
break;
case FileObjectIdInformation:
if (length != sizeof(FILE_OBJECTID_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
return STATUS_INVALID_INFO_CLASS;
case FileQuotaInformation:
if (length != sizeof(FILE_QUOTA_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
return STATUS_INVALID_INFO_CLASS;
case FileReparsePointInformation:
if (length != sizeof(FILE_REPARSE_POINT_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
return STATUS_INVALID_INFO_CLASS;
default:
return STATUS_INVALID_INFO_CLASS;
}
if (!buffer) return STATUS_ACCESS_VIOLATION;
if ((status = server_get_unix_fd( handle, FILE_LIST_DIRECTORY, &fd, &needs_close, NULL, NULL )) != STATUS_SUCCESS)
return status;
io->Information = 0;
RtlRunOnceExecuteOnce( &init_once, init_options, NULL, NULL );
RtlEnterCriticalSection( &dir_section );
cwd = open( ".", O_RDONLY );
if (fchdir( fd ) != -1)
{
if (!(status = get_cached_dir_data( handle, &data, fd, mask )))
{
union file_directory_info *last_info = NULL;
if (restart_scan) data->pos = 0;
while (!status && data->pos < data->count)
{
status = get_dir_data_entry( data, buffer, io, length, info_class, &last_info );
if (!status || status == STATUS_BUFFER_OVERFLOW) data->pos++;
if (single_entry) break;
}
if (!last_info) status = STATUS_NO_MORE_FILES;
else if (status == STATUS_MORE_ENTRIES) status = STATUS_SUCCESS;
io->u.Status = status;
}
if (cwd == -1 || fchdir( cwd ) == -1) chdir( "/" );
}
else status = FILE_GetNtStatus();
RtlLeaveCriticalSection( &dir_section );
if (needs_close) close( fd );
if (cwd != -1) close( cwd );
TRACE( "=> %x (%ld)\n", status, io->Information );
return status;
}
/***********************************************************************
* find_file_in_dir
*
* Find a file in a directory the hard way, by doing a case-insensitive search.
* The file found is appended to unix_name at pos.
* There must be at least MAX_DIR_ENTRY_LEN+2 chars available at pos.
*/
static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, int length,
BOOLEAN check_case, BOOLEAN *is_win_dir )
{
WCHAR buffer[MAX_DIR_ENTRY_LEN];
UNICODE_STRING str;
BOOLEAN spaces, is_name_8_dot_3;
DIR *dir;
struct dirent *de;
struct stat st;
int ret, used_default;
/* try a shortcut for this directory */
unix_name[pos++] = '/';
ret = ntdll_wcstoumbs( 0, name, length, unix_name + pos, MAX_DIR_ENTRY_LEN,
NULL, &used_default );
/* if we used the default char, the Unix name won't round trip properly back to Unicode */
/* so it cannot match the file we are looking for */
if (ret >= 0 && !used_default)
{
unix_name[pos + ret] = 0;
if (!stat( unix_name, &st ))
{
if (is_win_dir) *is_win_dir = is_same_file( &windir, &st );
return STATUS_SUCCESS;
}
}
if (check_case) goto not_found; /* we want an exact match */
if (pos > 1) unix_name[pos - 1] = 0;
else unix_name[1] = 0; /* keep the initial slash */
/* check if it fits in 8.3 so that we don't look for short names if we won't need them */
str.Buffer = (WCHAR *)name;
str.Length = length * sizeof(WCHAR);
str.MaximumLength = str.Length;
is_name_8_dot_3 = RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) && !spaces;
#ifndef VFAT_IOCTL_READDIR_BOTH
is_name_8_dot_3 = is_name_8_dot_3 && length >= 8 && name[4] == '~';
#endif
if (!is_name_8_dot_3 && !get_dir_case_sensitivity( unix_name )) goto not_found;
/* now look for it through the directory */
#ifdef VFAT_IOCTL_READDIR_BOTH
if (is_name_8_dot_3)
{
int fd = open( unix_name, O_RDONLY | O_DIRECTORY );
if (fd != -1)
{
KERNEL_DIRENT *kde;
RtlEnterCriticalSection( &dir_section );
if ((kde = start_vfat_ioctl( fd )))
{
unix_name[pos - 1] = '/';
while (kde[0].d_reclen)
{
/* make sure names are null-terminated to work around an x86-64 kernel bug */
size_t len = min(kde[0].d_reclen, sizeof(kde[0].d_name) - 1 );
kde[0].d_name[len] = 0;
len = min(kde[1].d_reclen, sizeof(kde[1].d_name) - 1 );
kde[1].d_name[len] = 0;
if (kde[1].d_name[0])
{
ret = ntdll_umbstowcs( 0, kde[1].d_name, strlen(kde[1].d_name),
buffer, MAX_DIR_ENTRY_LEN );
if (ret == length && !memicmpW( buffer, name, length))
{
strcpy( unix_name + pos, kde[1].d_name );
RtlLeaveCriticalSection( &dir_section );
close( fd );
goto success;
}
}
ret = ntdll_umbstowcs( 0, kde[0].d_name, strlen(kde[0].d_name),
buffer, MAX_DIR_ENTRY_LEN );
if (ret == length && !memicmpW( buffer, name, length))
{
strcpy( unix_name + pos,
kde[1].d_name[0] ? kde[1].d_name : kde[0].d_name );
RtlLeaveCriticalSection( &dir_section );
close( fd );
goto success;
}
if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)kde ) == -1)
{
RtlLeaveCriticalSection( &dir_section );
close( fd );
goto not_found;
}
}
}
RtlLeaveCriticalSection( &dir_section );
close( fd );
}
/* fall through to normal handling */
}
#endif /* VFAT_IOCTL_READDIR_BOTH */
if (!(dir = opendir( unix_name )))
{
if (errno == ENOENT) return STATUS_OBJECT_PATH_NOT_FOUND;
else return FILE_GetNtStatus();
}
unix_name[pos - 1] = '/';
str.Buffer = buffer;
str.MaximumLength = sizeof(buffer);
while ((de = readdir( dir )))
{
ret = ntdll_umbstowcs( 0, de->d_name, strlen(de->d_name), buffer, MAX_DIR_ENTRY_LEN );
if (ret == length && !memicmpW( buffer, name, length ))
{
strcpy( unix_name + pos, de->d_name );
closedir( dir );
goto success;
}
if (!is_name_8_dot_3) continue;
str.Length = ret * sizeof(WCHAR);
if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
{
WCHAR short_nameW[12];
ret = hash_short_file_name( &str, short_nameW );
if (ret == length && !memicmpW( short_nameW, name, length ))
{
strcpy( unix_name + pos, de->d_name );
closedir( dir );
goto success;
}
}
}
closedir( dir );
not_found:
unix_name[pos - 1] = 0;
return STATUS_OBJECT_PATH_NOT_FOUND;
success:
if (is_win_dir && !stat( unix_name, &st )) *is_win_dir = is_same_file( &windir, &st );
return STATUS_SUCCESS;
}
#ifndef _WIN64
static const WCHAR catrootW[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t',0};
static const WCHAR catroot2W[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t','2',0};
static const WCHAR driversstoreW[] = {'s','y','s','t','e','m','3','2','\\','d','r','i','v','e','r','s','s','t','o','r','e',0};
static const WCHAR driversetcW[] = {'s','y','s','t','e','m','3','2','\\','d','r','i','v','e','r','s','\\','e','t','c',0};
static const WCHAR logfilesW[] = {'s','y','s','t','e','m','3','2','\\','l','o','g','f','i','l','e','s',0};
static const WCHAR spoolW[] = {'s','y','s','t','e','m','3','2','\\','s','p','o','o','l',0};
static const WCHAR system32W[] = {'s','y','s','t','e','m','3','2',0};
static const WCHAR syswow64W[] = {'s','y','s','w','o','w','6','4',0};
static const WCHAR sysnativeW[] = {'s','y','s','n','a','t','i','v','e',0};
static const WCHAR regeditW[] = {'r','e','g','e','d','i','t','.','e','x','e',0};
static const WCHAR wow_regeditW[] = {'s','y','s','w','o','w','6','4','\\','r','e','g','e','d','i','t','.','e','x','e',0};
static struct
{
const WCHAR *source;
const WCHAR *dos_target;
const char *unix_target;
} redirects[] =
{
{ catrootW, NULL, NULL },
{ catroot2W, NULL, NULL },
{ driversstoreW, NULL, NULL },
{ driversetcW, NULL, NULL },
{ logfilesW, NULL, NULL },
{ spoolW, NULL, NULL },
{ system32W, syswow64W, NULL },
{ sysnativeW, system32W, NULL },
{ regeditW, wow_regeditW, NULL }
};
static unsigned int nb_redirects;
/***********************************************************************
* get_redirect_target
*
* Find the target unix name for a redirected dir.
*/
static const char *get_redirect_target( const char *windows_dir, const WCHAR *name )
{
int used_default, len, pos, win_len = strlen( windows_dir );
char *unix_name, *unix_target = NULL;
NTSTATUS status;
if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, win_len + MAX_DIR_ENTRY_LEN + 2 )))
return NULL;
memcpy( unix_name, windows_dir, win_len );
pos = win_len;
while (*name)
{
const WCHAR *end, *next;
for (end = name; *end; end++) if (IS_SEPARATOR(*end)) break;
for (next = end; *next; next++) if (!IS_SEPARATOR(*next)) break;
status = find_file_in_dir( unix_name, pos, name, end - name, FALSE, NULL );
if (status == STATUS_OBJECT_PATH_NOT_FOUND && !*next) /* not finding last element is ok */
{
len = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
MAX_DIR_ENTRY_LEN - (pos - win_len), NULL, &used_default );
if (len > 0 && !used_default)
{
unix_name[pos] = '/';
pos += len + 1;
unix_name[pos] = 0;
break;
}
}
if (status) goto done;
pos += strlen( unix_name + pos );
name = next;
}
if ((unix_target = RtlAllocateHeap( GetProcessHeap(), 0, pos - win_len )))
memcpy( unix_target, unix_name + win_len + 1, pos - win_len );
done:
RtlFreeHeap( GetProcessHeap(), 0, unix_name );
return unix_target;
}
/***********************************************************************
* init_redirects
*/
static void init_redirects(void)
{
UNICODE_STRING nt_name;
ANSI_STRING unix_name;
NTSTATUS status;
struct stat st;
unsigned int i;
if (!RtlDosPathNameToNtPathName_U( user_shared_data->NtSystemRoot, &nt_name, NULL, NULL ))
{
ERR( "can't convert %s\n", debugstr_w(user_shared_data->NtSystemRoot) );
return;
}
status = wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN_IF, FALSE );
RtlFreeUnicodeString( &nt_name );
if (status)
{
ERR( "cannot open %s (%x)\n", debugstr_w(user_shared_data->NtSystemRoot), status );
return;
}
if (!stat( unix_name.Buffer, &st ))
{
windir.dev = st.st_dev;
windir.ino = st.st_ino;
nb_redirects = sizeof(redirects) / sizeof(redirects[0]);
for (i = 0; i < nb_redirects; i++)
{
if (!redirects[i].dos_target) continue;
redirects[i].unix_target = get_redirect_target( unix_name.Buffer, redirects[i].dos_target );
TRACE( "%s -> %s\n", debugstr_w(redirects[i].source), redirects[i].unix_target );
}
}
RtlFreeAnsiString( &unix_name );
}
/***********************************************************************
* match_redirect
*
* Check if path matches a redirect name. If yes, return matched length.
*/
static int match_redirect( const WCHAR *path, int len, const WCHAR *redir, BOOLEAN check_case )
{
int i = 0;
while (i < len && *redir)
{
if (IS_SEPARATOR(path[i]))
{
if (*redir++ != '\\') return 0;
while (i < len && IS_SEPARATOR(path[i])) i++;
continue; /* move on to next path component */
}
else if (check_case)
{
if (path[i] != *redir) return 0;
}
else
{
if (tolowerW(path[i]) != tolowerW(*redir)) return 0;
}
i++;
redir++;
}
if (*redir) return 0;
if (i < len && !IS_SEPARATOR(path[i])) return 0;
while (i < len && IS_SEPARATOR(path[i])) i++;
return i;
}
/***********************************************************************
* get_redirect_path
*
* Retrieve the Unix path corresponding to a redirected path if any.
*/
static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, BOOLEAN check_case )
{
unsigned int i;
int len;
for (i = 0; i < nb_redirects; i++)
{
if ((len = match_redirect( name, length, redirects[i].source, check_case )))
{
if (!redirects[i].unix_target) break;
unix_name[pos++] = '/';
strcpy( unix_name + pos, redirects[i].unix_target );
return len;
}
}
return 0;
}
#else /* _WIN64 */
/* there are no redirects on 64-bit */
static const unsigned int nb_redirects = 0;
static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, BOOLEAN check_case )
{
return 0;
}
#endif
/***********************************************************************
* DIR_init_windows_dir
*/
void DIR_init_windows_dir( const WCHAR *win, const WCHAR *sys )
{
/* FIXME: should probably store paths as NT file names */
RtlCreateUnicodeString( &system_dir, sys );
#ifndef _WIN64
if (is_wow64) init_redirects();
#endif
}
/******************************************************************************
* get_dos_device
*
* Get the Unix path of a DOS device.
*/
static NTSTATUS get_dos_device( const WCHAR *name, UINT name_len, ANSI_STRING *unix_name_ret )
{
const char *config_dir = wine_get_config_dir();
struct stat st;
char *unix_name, *new_name, *dev;
unsigned int i;
int unix_len;
/* make sure the device name is ASCII */
for (i = 0; i < name_len; i++)
if (name[i] <= 32 || name[i] >= 127) return STATUS_BAD_DEVICE_TYPE;
unix_len = strlen(config_dir) + sizeof("/dosdevices/") + name_len + 1;
if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
return STATUS_NO_MEMORY;
strcpy( unix_name, config_dir );
strcat( unix_name, "/dosdevices/" );
dev = unix_name + strlen(unix_name);
for (i = 0; i < name_len; i++) dev[i] = (char)tolowerW(name[i]);
dev[i] = 0;
/* special case for drive devices */
if (name_len == 2 && dev[1] == ':')
{
dev[i++] = ':';
dev[i] = 0;
}
for (;;)
{
if (!stat( unix_name, &st ))
{
TRACE( "%s -> %s\n", debugstr_wn(name,name_len), debugstr_a(unix_name) );
unix_name_ret->Buffer = unix_name;
unix_name_ret->Length = strlen(unix_name);
unix_name_ret->MaximumLength = unix_len;
return STATUS_SUCCESS;
}
if (!dev) break;
/* now try some defaults for it */
if (!strcmp( dev, "aux" ))
{
strcpy( dev, "com1" );
continue;
}
if (!strcmp( dev, "prn" ))
{
strcpy( dev, "lpt1" );
continue;
}
new_name = NULL;
if (dev[1] == ':' && dev[2] == ':') /* drive device */
{
dev[2] = 0; /* remove last ':' to get the drive mount point symlink */
new_name = get_default_drive_device( unix_name );
}
if (!new_name) break;
RtlFreeHeap( GetProcessHeap(), 0, unix_name );
unix_name = new_name;
unix_len = strlen(unix_name) + 1;
dev = NULL; /* last try */
}
RtlFreeHeap( GetProcessHeap(), 0, unix_name );
return STATUS_BAD_DEVICE_TYPE;
}
/* return the length of the DOS namespace prefix if any */
static inline int get_dos_prefix_len( const UNICODE_STRING *name )
{
static const WCHAR nt_prefixW[] = {'\\','?','?','\\'};
static const WCHAR dosdev_prefixW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'};
if (name->Length >= sizeof(nt_prefixW) &&
!memcmp( name->Buffer, nt_prefixW, sizeof(nt_prefixW) ))
return sizeof(nt_prefixW) / sizeof(WCHAR);
if (name->Length >= sizeof(dosdev_prefixW) &&
!memicmpW( name->Buffer, dosdev_prefixW, sizeof(dosdev_prefixW)/sizeof(WCHAR) ))
return sizeof(dosdev_prefixW) / sizeof(WCHAR);
return 0;
}
/******************************************************************************
* find_file_id
*
* Recursively search directories from the dir queue for a given inode.
*/
static NTSTATUS find_file_id( ANSI_STRING *unix_name, ULONGLONG file_id, dev_t dev )
{
unsigned int pos;
DIR *dir;
struct dirent *de;
NTSTATUS status;
struct stat st;
while (!(status = next_dir_in_queue( unix_name->Buffer )))
{
if (!(dir = opendir( unix_name->Buffer ))) continue;
TRACE( "searching %s for %s\n", unix_name->Buffer, wine_dbgstr_longlong(file_id) );
pos = strlen( unix_name->Buffer );
if (pos + MAX_DIR_ENTRY_LEN >= unix_name->MaximumLength/sizeof(WCHAR))
{
char *new = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name->Buffer,
unix_name->MaximumLength * 2 );
if (!new)
{
closedir( dir );
return STATUS_NO_MEMORY;
}
unix_name->MaximumLength *= 2;
unix_name->Buffer = new;
}
unix_name->Buffer[pos++] = '/';
while ((de = readdir( dir )))
{
if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue;
strcpy( unix_name->Buffer + pos, de->d_name );
if (lstat( unix_name->Buffer, &st ) == -1) continue;
if (st.st_dev != dev) continue;
if (st.st_ino == file_id)
{
closedir( dir );
return STATUS_SUCCESS;
}
if (!S_ISDIR( st.st_mode )) continue;
if ((status = add_dir_to_queue( unix_name->Buffer )) != STATUS_SUCCESS)
{
closedir( dir );
return status;
}
}
closedir( dir );
}
return status;
}
/******************************************************************************
* file_id_to_unix_file_name
*
* Lookup a file from its file id instead of its name.
*/
NTSTATUS file_id_to_unix_file_name( const OBJECT_ATTRIBUTES *attr, ANSI_STRING *unix_name )
{
enum server_fd_type type;
int old_cwd, root_fd, needs_close;
NTSTATUS status;
ULONGLONG file_id;
struct stat st, root_st;
if (attr->ObjectName->Length != sizeof(ULONGLONG)) return STATUS_OBJECT_PATH_SYNTAX_BAD;
if (!attr->RootDirectory) return STATUS_INVALID_PARAMETER;
memcpy( &file_id, attr->ObjectName->Buffer, sizeof(file_id) );
unix_name->MaximumLength = 2 * MAX_DIR_ENTRY_LEN + 4;
if (!(unix_name->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, unix_name->MaximumLength )))
return STATUS_NO_MEMORY;
strcpy( unix_name->Buffer, "." );
if ((status = server_get_unix_fd( attr->RootDirectory, 0, &root_fd, &needs_close, &type, NULL )))
goto done;
if (type != FD_TYPE_DIR)
{
status = STATUS_OBJECT_TYPE_MISMATCH;
goto done;
}
fstat( root_fd, &root_st );
if (root_st.st_ino == file_id) /* shortcut for "." */
{
status = STATUS_SUCCESS;
goto done;
}
RtlEnterCriticalSection( &dir_section );
if ((old_cwd = open( ".", O_RDONLY )) != -1 && fchdir( root_fd ) != -1)
{
/* shortcut for ".." */
if (!stat( "..", &st ) && st.st_dev == root_st.st_dev && st.st_ino == file_id)
{
strcpy( unix_name->Buffer, ".." );
status = STATUS_SUCCESS;
}
else
{
status = add_dir_to_queue( "." );
if (!status)
status = find_file_id( unix_name, file_id, root_st.st_dev );
if (!status) /* get rid of "./" prefix */
memmove( unix_name->Buffer, unix_name->Buffer + 2, strlen(unix_name->Buffer) - 1 );
flush_dir_queue();
}
if (fchdir( old_cwd ) == -1) chdir( "/" );
}
else status = FILE_GetNtStatus();
RtlLeaveCriticalSection( &dir_section );
if (old_cwd != -1) close( old_cwd );
done:
if (status == STATUS_SUCCESS)
{
TRACE( "%s -> %s\n", wine_dbgstr_longlong(file_id), debugstr_a(unix_name->Buffer) );
unix_name->Length = strlen( unix_name->Buffer );
}
else
{
TRACE( "%s not found in dir %p\n", wine_dbgstr_longlong(file_id), attr->RootDirectory );
RtlFreeHeap( GetProcessHeap(), 0, unix_name->Buffer );
}
if (needs_close) close( root_fd );
return status;
}
/******************************************************************************
* lookup_unix_name
*
* Helper for nt_to_unix_file_name
*/
static NTSTATUS lookup_unix_name( const WCHAR *name, int name_len, char **buffer, int unix_len, int pos,
UINT disposition, BOOLEAN check_case )
{
NTSTATUS status;
int ret, used_default, len;
struct stat st;
char *unix_name = *buffer;
const BOOL redirect = nb_redirects && ntdll_get_thread_data()->wow64_redir;
/* try a shortcut first */
ret = ntdll_wcstoumbs( 0, name, name_len, unix_name + pos, unix_len - pos - 1,
NULL, &used_default );
while (name_len && IS_SEPARATOR(*name))
{
name++;
name_len--;
}
if (ret >= 0 && !used_default) /* if we used the default char the name didn't convert properly */
{
char *p;
unix_name[pos + ret] = 0;
for (p = unix_name + pos ; *p; p++) if (*p == '\\') *p = '/';
if (!redirect || (!strstr( unix_name, "/windows/") && strncmp( unix_name, "windows/", 8 )))
{
if (!stat( unix_name, &st ))
{
/* creation fails with STATUS_ACCESS_DENIED for the root of the drive */
if (disposition == FILE_CREATE)
return name_len ? STATUS_OBJECT_NAME_COLLISION : STATUS_ACCESS_DENIED;
return STATUS_SUCCESS;
}
}
}
if (!name_len) /* empty name -> drive root doesn't exist */
return STATUS_OBJECT_PATH_NOT_FOUND;
if (check_case && !redirect && (disposition == FILE_OPEN || disposition == FILE_OVERWRITE))
return STATUS_OBJECT_NAME_NOT_FOUND;
/* now do it component by component */
while (name_len)
{
const WCHAR *end, *next;
BOOLEAN is_win_dir = FALSE;
end = name;
while (end < name + name_len && !IS_SEPARATOR(*end)) end++;
next = end;
while (next < name + name_len && IS_SEPARATOR(*next)) next++;
name_len -= next - name;
/* grow the buffer if needed */
if (unix_len - pos < MAX_DIR_ENTRY_LEN + 2)
{
char *new_name;
unix_len += 2 * MAX_DIR_ENTRY_LEN;
if (!(new_name = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name, unix_len )))
return STATUS_NO_MEMORY;
unix_name = *buffer = new_name;
}
status = find_file_in_dir( unix_name, pos, name, end - name,
check_case, redirect ? &is_win_dir : NULL );
/* if this is the last element, not finding it is not necessarily fatal */
if (!name_len)
{
if (status == STATUS_OBJECT_PATH_NOT_FOUND)
{
status = STATUS_OBJECT_NAME_NOT_FOUND;
if (disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
{
ret = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
MAX_DIR_ENTRY_LEN, NULL, &used_default );
if (ret > 0 && !used_default)
{
unix_name[pos] = '/';
unix_name[pos + 1 + ret] = 0;
status = STATUS_NO_SUCH_FILE;
break;
}
}
}
else if (status == STATUS_SUCCESS && disposition == FILE_CREATE)
{
status = STATUS_OBJECT_NAME_COLLISION;
}
}
if (status != STATUS_SUCCESS) break;
pos += strlen( unix_name + pos );
name = next;
if (is_win_dir && (len = get_redirect_path( unix_name, pos, name, name_len, check_case )))
{
name += len;
name_len -= len;
pos += strlen( unix_name + pos );
TRACE( "redirecting -> %s + %s\n", debugstr_a(unix_name), debugstr_w(name) );
}
}
return status;
}
/******************************************************************************
* nt_to_unix_file_name_attr
*/
NTSTATUS nt_to_unix_file_name_attr( const OBJECT_ATTRIBUTES *attr, ANSI_STRING *unix_name_ret,
UINT disposition )
{
static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
enum server_fd_type type;
int old_cwd, root_fd, needs_close;
const WCHAR *name, *p;
char *unix_name;
int name_len, unix_len;
NTSTATUS status;
BOOLEAN check_case = !(attr->Attributes & OBJ_CASE_INSENSITIVE);
if (!attr->RootDirectory) /* without root dir fall back to normal lookup */
return wine_nt_to_unix_file_name( attr->ObjectName, unix_name_ret, disposition, check_case );
name = attr->ObjectName->Buffer;
name_len = attr->ObjectName->Length / sizeof(WCHAR);
if (name_len && IS_SEPARATOR(name[0])) return STATUS_INVALID_PARAMETER;
/* check for invalid characters */
for (p = name; p < name + name_len; p++)
if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
unix_len = ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
unix_len += MAX_DIR_ENTRY_LEN + 3;
if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
return STATUS_NO_MEMORY;
unix_name[0] = '.';
if (!(status = server_get_unix_fd( attr->RootDirectory, 0, &root_fd, &needs_close, &type, NULL )))
{
if (type != FD_TYPE_DIR)
{
if (needs_close) close( root_fd );
status = STATUS_BAD_DEVICE_TYPE;
}
else
{
RtlEnterCriticalSection( &dir_section );
if ((old_cwd = open( ".", O_RDONLY )) != -1 && fchdir( root_fd ) != -1)
{
status = lookup_unix_name( name, name_len, &unix_name, unix_len, 1,
disposition, check_case );
if (fchdir( old_cwd ) == -1) chdir( "/" );
}
else status = FILE_GetNtStatus();
RtlLeaveCriticalSection( &dir_section );
if (old_cwd != -1) close( old_cwd );
if (needs_close) close( root_fd );
}
}
else if (status == STATUS_OBJECT_TYPE_MISMATCH) status = STATUS_BAD_DEVICE_TYPE;
if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE)
{
TRACE( "%s -> %s\n", debugstr_us(attr->ObjectName), debugstr_a(unix_name) );
unix_name_ret->Buffer = unix_name;
unix_name_ret->Length = strlen(unix_name);
unix_name_ret->MaximumLength = unix_len;
}
else
{
TRACE( "%s not found in %s\n", debugstr_w(name), unix_name );
RtlFreeHeap( GetProcessHeap(), 0, unix_name );
}
return status;
}
/******************************************************************************
* 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 )
{
static const WCHAR unixW[] = {'u','n','i','x'};
static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
NTSTATUS status = STATUS_SUCCESS;
const char *config_dir = wine_get_config_dir();
const WCHAR *name, *p;
struct stat st;
char *unix_name;
int pos, ret, name_len, unix_len, prefix_len, used_default;
WCHAR prefix[MAX_DIR_ENTRY_LEN];
BOOLEAN is_unix = FALSE;
name = nameW->Buffer;
name_len = nameW->Length / sizeof(WCHAR);
if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_PATH_SYNTAX_BAD;
if (!(pos = get_dos_prefix_len( nameW )))
return STATUS_BAD_DEVICE_TYPE; /* no DOS prefix, assume NT native name */
name += pos;
name_len -= pos;
if (!name_len) return STATUS_OBJECT_NAME_INVALID;
/* check for sub-directory */
for (pos = 0; pos < name_len; pos++)
{
if (IS_SEPARATOR(name[pos])) break;
if (name[pos] < 32 || strchrW( invalid_charsW, name[pos] ))
return STATUS_OBJECT_NAME_INVALID;
}
if (pos > MAX_DIR_ENTRY_LEN)
return STATUS_OBJECT_NAME_INVALID;
if (pos == name_len) /* no subdir, plain DOS device */
return get_dos_device( name, name_len, unix_name_ret );
for (prefix_len = 0; prefix_len < pos; prefix_len++)
prefix[prefix_len] = tolowerW(name[prefix_len]);
name += prefix_len;
name_len -= prefix_len;
/* check for invalid characters (all chars except 0 are valid for unix) */
is_unix = (prefix_len == 4 && !memcmp( prefix, unixW, sizeof(unixW) ));
if (is_unix)
{
for (p = name; p < name + name_len; p++)
if (!*p) return STATUS_OBJECT_NAME_INVALID;
check_case = TRUE;
}
else
{
for (p = name; p < name + name_len; p++)
if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
}
unix_len = ntdll_wcstoumbs( 0, prefix, prefix_len, NULL, 0, NULL, NULL );
unix_len += ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
unix_len += MAX_DIR_ENTRY_LEN + 3;
unix_len += strlen(config_dir) + sizeof("/dosdevices/");
if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
return STATUS_NO_MEMORY;
strcpy( unix_name, config_dir );
strcat( unix_name, "/dosdevices/" );
pos = strlen(unix_name);
ret = ntdll_wcstoumbs( 0, prefix, prefix_len, unix_name + pos, unix_len - pos - 1,
NULL, &used_default );
if (!ret || used_default)
{
RtlFreeHeap( GetProcessHeap(), 0, unix_name );
return STATUS_OBJECT_NAME_INVALID;
}
pos += ret;
/* check if prefix exists (except for DOS drives to avoid extra stat calls) */
if (prefix_len != 2 || prefix[1] != ':')
{
unix_name[pos] = 0;
if (lstat( unix_name, &st ) == -1 && errno == ENOENT)
{
if (!is_unix)
{
RtlFreeHeap( GetProcessHeap(), 0, unix_name );
return STATUS_BAD_DEVICE_TYPE;
}
pos = 0; /* fall back to unix root */
}
}
status = lookup_unix_name( name, name_len, &unix_name, unix_len, pos, disposition, check_case );
if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE)
{
TRACE( "%s -> %s\n", debugstr_us(nameW), debugstr_a(unix_name) );
unix_name_ret->Buffer = unix_name;
unix_name_ret->Length = strlen(unix_name);
unix_name_ret->MaximumLength = unix_len;
}
else
{
TRACE( "%s not found in %s\n", debugstr_w(name), unix_name );
RtlFreeHeap( GetProcessHeap(), 0, unix_name );
}
return status;
}
/******************************************************************
* 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;
}
/***********************************************************************
* DIR_unmount_device
*
* Unmount the specified device.
*/
NTSTATUS DIR_unmount_device( HANDLE handle )
{
NTSTATUS status;
int unix_fd, needs_close;
if (!(status = server_get_unix_fd( handle, 0, &unix_fd, &needs_close, NULL, NULL )))
{
struct stat st;
char *mount_point = NULL;
if (fstat( unix_fd, &st ) == -1 || !is_valid_mounted_device( &st ))
status = STATUS_INVALID_PARAMETER;
else
{
if ((mount_point = get_device_mount_point( st.st_rdev )))
{
#ifdef __APPLE__
static const char umount[] = "diskutil unmount >/dev/null 2>&1 ";
#else
static const char umount[] = "umount >/dev/null 2>&1 ";
#endif
char *cmd = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mount_point)+sizeof(umount));
if (cmd)
{
strcpy( cmd, umount );
strcat( cmd, mount_point );
system( cmd );
RtlFreeHeap( GetProcessHeap(), 0, cmd );
#ifdef linux
/* umount will fail to release the loop device since we still have
a handle to it, so we release it here */
if (major(st.st_rdev) == LOOP_MAJOR) ioctl( unix_fd, 0x4c01 /*LOOP_CLR_FD*/, 0 );
#endif
}
RtlFreeHeap( GetProcessHeap(), 0, mount_point );
}
}
if (needs_close) close( unix_fd );
}
return status;
}
/******************************************************************************
* DIR_get_unix_cwd
*
* Retrieve the Unix name of the current directory; helper for wine_unix_to_nt_file_name.
* Returned value must be freed by caller.
*/
NTSTATUS DIR_get_unix_cwd( char **cwd )
{
int old_cwd, unix_fd, needs_close;
CURDIR *curdir;
HANDLE handle;
NTSTATUS status;
RtlAcquirePebLock();
if (NtCurrentTeb()->Tib.SubSystemTib) /* FIXME: hack */
curdir = &((WIN16_SUBSYSTEM_TIB *)NtCurrentTeb()->Tib.SubSystemTib)->curdir;
else
curdir = &NtCurrentTeb()->Peb->ProcessParameters->CurrentDirectory;
if (!(handle = curdir->Handle))
{
UNICODE_STRING dirW;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
if (!RtlDosPathNameToNtPathName_U( curdir->DosPath.Buffer, &dirW, NULL, NULL ))
{
status = STATUS_OBJECT_NAME_INVALID;
goto done;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &dirW;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenFile( &handle, SYNCHRONIZE, &attr, &io, 0,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
RtlFreeUnicodeString( &dirW );
if (status != STATUS_SUCCESS) goto done;
}
if ((status = server_get_unix_fd( handle, 0, &unix_fd, &needs_close, NULL, NULL )) == STATUS_SUCCESS)
{
RtlEnterCriticalSection( &dir_section );
if ((old_cwd = open(".", O_RDONLY)) != -1 && fchdir( unix_fd ) != -1)
{
unsigned int size = 512;
for (;;)
{
if (!(*cwd = RtlAllocateHeap( GetProcessHeap(), 0, size )))
{
status = STATUS_NO_MEMORY;
break;
}
if (getcwd( *cwd, size )) break;
RtlFreeHeap( GetProcessHeap(), 0, *cwd );
if (errno != ERANGE)
{
status = STATUS_OBJECT_PATH_INVALID;
break;
}
size *= 2;
}
if (fchdir( old_cwd ) == -1) chdir( "/" );
}
else status = FILE_GetNtStatus();
RtlLeaveCriticalSection( &dir_section );
if (old_cwd != -1) close( old_cwd );
if (needs_close) close( unix_fd );
}
if (!curdir->Handle) NtClose( handle );
done:
RtlReleasePebLock();
return status;
}