mirror of
https://github.com/samba-team/samba.git
synced 2024-12-22 13:34:15 +03:00
fbdcf2663b
to do the upper layer directories but this is what
everyone is waiting for....
Jeremy.
(This used to be commit 9dafb7f48c
)
136 lines
3.4 KiB
C
136 lines
3.4 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
Name mangling interface
|
|
Copyright (C) Andrew Tridgell 2002
|
|
|
|
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 02139, USA.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
|
|
static struct mangle_fns *mangle_fns;
|
|
|
|
/* this allows us to add more mangling backends */
|
|
static const struct {
|
|
const char *name;
|
|
struct mangle_fns *(*init_fn)(void);
|
|
} mangle_backends[] = {
|
|
{ "hash", mangle_hash_init },
|
|
{ "hash2", mangle_hash2_init },
|
|
{ "posix", posix_mangle_init },
|
|
/*{ "tdb", mangle_tdb_init }, */
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
/*
|
|
initialise the mangling subsystem
|
|
*/
|
|
static void mangle_init(void)
|
|
{
|
|
int i;
|
|
const char *method;
|
|
|
|
if (mangle_fns)
|
|
return;
|
|
|
|
method = lp_mangling_method();
|
|
|
|
/* find the first mangling method that manages to initialise and
|
|
matches the "mangling method" parameter */
|
|
for (i=0; mangle_backends[i].name && !mangle_fns; i++) {
|
|
if (!method || !*method || strcmp(method, mangle_backends[i].name) == 0) {
|
|
mangle_fns = mangle_backends[i].init_fn();
|
|
}
|
|
}
|
|
|
|
if (!mangle_fns) {
|
|
DEBUG(0,("Failed to initialise mangling system '%s'\n", method));
|
|
exit_server("mangling init failed");
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
reset the cache. This is called when smb.conf has been reloaded
|
|
*/
|
|
void mangle_reset_cache(void)
|
|
{
|
|
mangle_init();
|
|
mangle_fns->reset();
|
|
}
|
|
|
|
void mangle_change_to_posix(void)
|
|
{
|
|
mangle_fns = NULL;
|
|
lp_set_mangling_method("posix");
|
|
mangle_reset_cache();
|
|
}
|
|
|
|
/*
|
|
see if a filename has come out of our mangling code
|
|
*/
|
|
BOOL mangle_is_mangled(const char *s, const struct share_params *p)
|
|
{
|
|
return mangle_fns->is_mangled(s, p);
|
|
}
|
|
|
|
/*
|
|
see if a filename matches the rules of a 8.3 filename
|
|
*/
|
|
BOOL mangle_is_8_3(const char *fname, BOOL check_case,
|
|
const struct share_params *p)
|
|
{
|
|
return mangle_fns->is_8_3(fname, check_case, False, p);
|
|
}
|
|
|
|
BOOL mangle_is_8_3_wildcards(const char *fname, BOOL check_case,
|
|
const struct share_params *p)
|
|
{
|
|
return mangle_fns->is_8_3(fname, check_case, True, p);
|
|
}
|
|
|
|
/*
|
|
try to reverse map a 8.3 name to the original filename. This doesn't have to
|
|
always succeed, as the directory handling code in smbd will scan the directory
|
|
looking for a matching name if it doesn't. It should succeed most of the time
|
|
or there will be a huge performance penalty
|
|
*/
|
|
BOOL mangle_check_cache(char *s, size_t maxlen,
|
|
const struct share_params *p)
|
|
{
|
|
return mangle_fns->check_cache(s, maxlen, p);
|
|
}
|
|
|
|
/*
|
|
map a long filename to a 8.3 name.
|
|
*/
|
|
|
|
void mangle_map(pstring OutName, BOOL need83, BOOL cache83,
|
|
const struct share_params *p)
|
|
{
|
|
/* name mangling can be disabled for speed, in which case
|
|
we just truncate the string */
|
|
if (!lp_manglednames(p)) {
|
|
if (need83) {
|
|
string_truncate(OutName, 12);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* invoke the inane "mangled map" code */
|
|
mangle_map_filename(OutName, p);
|
|
mangle_fns->name_map(OutName, need83, cache83, lp_defaultcase(p->service), p);
|
|
}
|