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 3 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, see <http://www.gnu.org/licenses/>.
22 static struct mangle_fns *mangle_fns;
24 /* this allows us to add more mangling backends */
27 struct mangle_fns *(*init_fn)(void);
28 } mangle_backends[] = {
29 { "hash", mangle_hash_init },
30 { "hash2", mangle_hash2_init },
31 { "posix", posix_mangle_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)
73 void mangle_change_to_posix(void)
76 lp_set_mangling_method("posix");
81 see if a filename has come out of our mangling code
83 BOOL mangle_is_mangled(const char *s, const struct share_params *p)
85 return mangle_fns->is_mangled(s, p);
89 see if a filename matches the rules of a 8.3 filename
91 BOOL mangle_is_8_3(const char *fname, BOOL check_case,
92 const struct share_params *p)
94 return mangle_fns->is_8_3(fname, check_case, False, p);
97 BOOL mangle_is_8_3_wildcards(const char *fname, BOOL check_case,
98 const struct share_params *p)
100 return mangle_fns->is_8_3(fname, check_case, True, p);
104 try to reverse map a 8.3 name to the original filename. This doesn't have to
105 always succeed, as the directory handling code in smbd will scan the directory
106 looking for a matching name if it doesn't. It should succeed most of the time
107 or there will be a huge performance penalty
109 BOOL mangle_check_cache(char *s, size_t maxlen,
110 const struct share_params *p)
112 return mangle_fns->check_cache(s, maxlen, p);
116 map a long filename to a 8.3 name.
119 void mangle_map(pstring OutName, BOOL need83, BOOL cache83,
120 const struct share_params *p)
122 /* name mangling can be disabled for speed, in which case
123 we just truncate the string */
124 if (!lp_manglednames(p)) {
126 string_truncate(OutName, 12);
131 /* invoke the inane "mangled map" code */
132 mangle_map_filename(OutName, p);
133 mangle_fns->name_map(OutName, need83, cache83, lp_defaultcase(p->service), p);