2 Unix SMB/CIFS implementation.
3 Name mangling interface
4 Copyright (C) Andrew Tridgell 2002
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 static struct mangle_fns
*mangle_fns
;
25 /* this allows us to add more mangling backends */
28 struct mangle_fns
*(*init_fn
)(void);
29 } mangle_backends
[] = {
30 { "hash", mangle_hash_init
},
31 { "hash2", mangle_hash2_init
},
36 initialise the mangling subsystem
38 static void mangle_init(void)
46 method
= lp_mangling_method();
48 /* find the first mangling method that manages to initialise and
49 matches the "mangling method" parameter */
50 for (i
=0; mangle_backends
[i
].name
&& !mangle_fns
; i
++) {
51 if (!method
|| !*method
|| strcmp(method
, mangle_backends
[i
].name
) == 0) {
52 mangle_fns
= mangle_backends
[i
].init_fn();
57 DEBUG(0,("Failed to initialise mangling system '%s'\n", method
));
58 exit_server("mangling init failed");
64 reset the cache. This is called when smb.conf has been reloaded
66 void mangle_reset_cache(void)
74 see if a filename has come out of our mangling code
76 BOOL
mangle_is_mangled(const char *s
)
78 return mangle_fns
->is_mangled(s
);
82 see if a filename matches the rules of a 8.3 filename
84 BOOL
mangle_is_8_3(const char *fname
, BOOL check_case
)
86 return mangle_fns
->is_8_3(fname
, check_case
, False
);
89 BOOL
mangle_is_8_3_wildcards(const char *fname
, BOOL check_case
)
91 return mangle_fns
->is_8_3(fname
, check_case
, True
);
95 try to reverse map a 8.3 name to the original filename. This doesn't have to
96 always succeed, as the directory handling code in smbd will scan the directory
97 looking for a matching name if it doesn't. It should succeed most of the time
98 or there will be a huge performance penalty
100 BOOL
mangle_check_cache(char *s
)
102 return mangle_fns
->check_cache(s
);
106 map a long filename to a 8.3 name.
109 void mangle_map(char *OutName
, BOOL need83
, BOOL cache83
, int snum
)
111 /* name mangling can be disabled for speed, in which case
112 we just truncate the string */
113 if (!lp_manglednames(snum
)) {
115 string_truncate(OutName
, 12);
120 /* invoke the inane "mangled map" code */
121 mangle_map_filename(OutName
, snum
);
122 mangle_fns
->name_map(OutName
, need83
, cache83
);