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
},
32 /*{ "tdb", mangle_tdb_init }, */
37 initialise the mangling subsystem
39 static void mangle_init(void)
47 method
= lp_mangling_method();
49 /* find the first mangling method that manages to initialise and
50 matches the "mangling method" parameter */
51 for (i
=0; mangle_backends
[i
].name
&& !mangle_fns
; i
++) {
52 if (!method
|| !*method
|| strcmp(method
, mangle_backends
[i
].name
) == 0) {
53 mangle_fns
= mangle_backends
[i
].init_fn();
58 DEBUG(0,("Failed to initialise mangling system '%s'\n", method
));
59 exit_server("mangling init failed");
65 reset the cache. This is called when smb.conf has been reloaded
67 void mangle_reset_cache(void)
75 see if a filename has come out of our mangling code
77 BOOL
mangle_is_mangled(const char *s
)
79 return mangle_fns
->is_mangled(s
);
83 see if a filename matches the rules of a 8.3 filename
85 BOOL
mangle_is_8_3(const char *fname
, BOOL check_case
)
87 return mangle_fns
->is_8_3(fname
, check_case
, False
);
90 BOOL
mangle_is_8_3_wildcards(const char *fname
, BOOL check_case
)
92 return mangle_fns
->is_8_3(fname
, check_case
, True
);
96 try to reverse map a 8.3 name to the original filename. This doesn't have to
97 always succeed, as the directory handling code in smbd will scan the directory
98 looking for a matching name if it doesn't. It should succeed most of the time
99 or there will be a huge performance penalty
101 BOOL
mangle_check_cache(char *s
, size_t maxlen
)
103 return mangle_fns
->check_cache(s
, maxlen
);
107 map a long filename to a 8.3 name.
110 void mangle_map(pstring OutName
, BOOL need83
, BOOL cache83
, int snum
)
112 /* name mangling can be disabled for speed, in which case
113 we just truncate the string */
114 if (!lp_manglednames(snum
)) {
116 string_truncate(OutName
, 12);
121 /* invoke the inane "mangled map" code */
122 mangle_map_filename(OutName
, snum
);
123 mangle_fns
->name_map(OutName
, need83
, cache83
, lp_defaultcase(snum
));