/*
Unix SMB / Netbios implementation .
Version 1.9 .
file closing
Copyright ( C ) Andrew Tridgell 1992 - 1998
This program is free software ; you can redistribute it and / or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation ; either version 2 of the License , or
( at your option ) any later version .
This program 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 General Public License for more details .
You should have received a copy of the GNU General Public License
along with this program ; if not , write to the Free Software
Foundation , Inc . , 675 Mass Ave , Cambridge , MA 0213 9 , USA .
*/
# include "includes.h"
extern int DEBUGLEVEL ;
/****************************************************************************
run a file if it is a magic script
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static void check_magic ( files_struct * fsp , connection_struct * conn )
{
if ( ! * lp_magicscript ( SNUM ( conn ) ) )
return ;
DEBUG ( 5 , ( " checking magic for %s \n " , fsp - > fsp_name ) ) ;
{
char * p ;
if ( ! ( p = strrchr ( fsp - > fsp_name , ' / ' ) ) )
p = fsp - > fsp_name ;
else
p + + ;
if ( ! strequal ( lp_magicscript ( SNUM ( conn ) ) , p ) )
return ;
}
{
int ret ;
pstring magic_output ;
pstring fname ;
pstrcpy ( fname , fsp - > fsp_name ) ;
if ( * lp_magicoutput ( SNUM ( conn ) ) )
pstrcpy ( magic_output , lp_magicoutput ( SNUM ( conn ) ) ) ;
else
slprintf ( magic_output , sizeof ( fname ) - 1 , " %s.out " , fname ) ;
chmod ( fname , 0755 ) ;
ret = smbrun ( fname , magic_output , False ) ;
DEBUG ( 3 , ( " Invoking magic command %s gave %d \n " , fname , ret ) ) ;
unlink ( fname ) ;
}
}
/****************************************************************************
Common code to close a file or a directory .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static void close_filestruct ( files_struct * fsp )
{
connection_struct * conn = fsp - > conn ;
flush_write_cache ( fsp , CLOSE_FLUSH ) ;
fsp - > open = False ;
fsp - > is_directory = False ;
conn - > num_files_open - - ;
if ( fsp - > wbmpx_ptr ) {
free ( ( char * ) fsp - > wbmpx_ptr ) ;
fsp - > wbmpx_ptr = NULL ;
}
}
/****************************************************************************
Close a file - possibly invalidating the read prediction .
If normal_close is 1 then this came from a normal SMBclose ( or equivalent )
operation otherwise it came as the result of some other operation such as
the closing of the connection . In the latter case printing and
magic scripts are not run .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static int close_normal_file ( files_struct * fsp , BOOL normal_close )
{
BOOL delete_on_close = fsp - > delete_on_close ;
connection_struct * conn = fsp - > conn ;
int err = 0 ;
remove_pending_lock_requests_by_fid ( fsp ) ;
close_filestruct ( fsp ) ;
if ( normal_close & & fsp - > print_file ) {
print_fsp_end ( fsp ) ;
file_free ( fsp ) ;
return 0 ;
}
if ( lp_share_modes ( SNUM ( conn ) ) ) {
lock_share_entry_fsp ( fsp ) ;
del_share_mode ( fsp ) ;
}
if ( EXCLUSIVE_OPLOCK_TYPE ( fsp - > oplock_type ) )
release_file_oplock ( fsp ) ;
locking_close_file ( fsp ) ;
if ( lp_share_modes ( SNUM ( conn ) ) )
unlock_share_entry_fsp ( fsp ) ;
err = fd_close ( conn , fsp ) ;
/* check for magic scripts */
if ( normal_close ) {
check_magic ( fsp , conn ) ;
}
/*
* NT can set delete_on_close of the last open
* reference to a file .
*/
if ( normal_close & & delete_on_close ) {
DEBUG ( 5 , ( " close_file: file %s. Delete on close was set - deleting file. \n " ,
fsp - > fsp_name ) ) ;
if ( fsp - > conn - > vfs_ops . unlink ( dos_to_unix ( fsp - > fsp_name , False ) ) ! = 0 ) {
/*
* This call can potentially fail as another smbd may have
* had the file open with delete on close set and deleted
* it when its last reference to this file went away . Hence
* we log this but not at debug level zero .
*/
DEBUG ( 5 , ( " close_file: file %s. Delete on close was set and unlink failed \
with error % s \ n " , fsp->fsp_name, strerror(errno) ));
}
}
DEBUG ( 2 , ( " %s closed file %s (numopen=%d) %s \n " ,
conn - > user , fsp - > fsp_name ,
conn - > num_files_open , err ? strerror ( err ) : " " ) ) ;
if ( fsp - > fsp_name ) {
string_free ( & fsp - > fsp_name ) ;
}
file_free ( fsp ) ;
return err ;
}
/****************************************************************************
Close a directory opened by an NT SMB call .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static int close_directory ( files_struct * fsp , BOOL normal_close )
{
remove_pending_change_notify_requests_by_fid ( fsp ) ;
/*
* NT can set delete_on_close of the last open
* reference to a directory also .
*/
if ( normal_close & & fsp - > directory_delete_on_close ) {
BOOL ok = rmdir_internals ( fsp - > conn , fsp - > fsp_name ) ;
DEBUG ( 5 , ( " close_directory: %s. Delete on close was set - deleting directory %s. \n " ,
fsp - > fsp_name , ok ? " succeeded " : " failed " ) ) ;
/*
* Ensure we remove any change notify requests that would
* now fail as the directory has been deleted .
*/
if ( ok )
remove_pending_change_notify_requests_by_filename ( fsp ) ;
}
/*
* Do the code common to files and directories .
*/
close_filestruct ( fsp ) ;
if ( fsp - > fsp_name )
string_free ( & fsp - > fsp_name ) ;
file_free ( fsp ) ;
return 0 ;
}
/****************************************************************************
Close a file opened with null permissions in order to read permissions .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static int close_statfile ( files_struct * fsp , BOOL normal_close )
{
close_filestruct ( fsp ) ;
if ( fsp - > fsp_name )
string_free ( & fsp - > fsp_name ) ;
file_free ( fsp ) ;
return 0 ;
}
/****************************************************************************
Close a directory opened by an NT SMB call .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
int close_file ( files_struct * fsp , BOOL normal_close )
{
if ( fsp - > is_directory )
return close_directory ( fsp , normal_close ) ;
else if ( fsp - > stat_open )
return close_statfile ( fsp , normal_close ) ;
return close_normal_file ( fsp , normal_close ) ;
}
