mirror of
https://github.com/samba-team/samba.git
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7e509e9b99
ie. files containing : and \ can be accessed from Linux.
Jeremy.
(This used to be commit e9b8d23d61)
132 lines
3.3 KiB
C
132 lines
3.3 KiB
C
/*
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Unix SMB/CIFS implementation.
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Name mangling interface
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Copyright (C) Andrew Tridgell 2002
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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static struct mangle_fns *mangle_fns;
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/* this allows us to add more mangling backends */
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static const struct {
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const char *name;
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struct mangle_fns *(*init_fn)(void);
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} mangle_backends[] = {
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{ "hash", mangle_hash_init },
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{ "hash2", mangle_hash2_init },
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{ "posix", posix_mangle_init },
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/*{ "tdb", mangle_tdb_init }, */
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{ NULL, NULL }
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};
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/*
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initialise the mangling subsystem
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*/
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static void mangle_init(void)
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{
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int i;
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const char *method;
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if (mangle_fns)
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return;
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method = lp_mangling_method();
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/* find the first mangling method that manages to initialise and
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matches the "mangling method" parameter */
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for (i=0; mangle_backends[i].name && !mangle_fns; i++) {
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if (!method || !*method || strcmp(method, mangle_backends[i].name) == 0) {
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mangle_fns = mangle_backends[i].init_fn();
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}
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}
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if (!mangle_fns) {
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DEBUG(0,("Failed to initialise mangling system '%s'\n", method));
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exit_server("mangling init failed");
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}
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}
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/*
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reset the cache. This is called when smb.conf has been reloaded
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*/
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void mangle_reset_cache(void)
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{
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mangle_init();
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mangle_fns->reset();
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}
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void mangle_change_to_posix(void)
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{
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mangle_fns = NULL;
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lp_set_mangling_method("posix");
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mangle_reset_cache();
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}
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/*
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see if a filename has come out of our mangling code
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*/
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BOOL mangle_is_mangled(const char *s, int snum)
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{
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return mangle_fns->is_mangled(s, snum);
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}
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/*
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see if a filename matches the rules of a 8.3 filename
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*/
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BOOL mangle_is_8_3(const char *fname, BOOL check_case, int snum)
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{
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return mangle_fns->is_8_3(fname, check_case, False, snum);
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}
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BOOL mangle_is_8_3_wildcards(const char *fname, BOOL check_case, int snum)
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{
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return mangle_fns->is_8_3(fname, check_case, True, snum);
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}
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/*
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try to reverse map a 8.3 name to the original filename. This doesn't have to
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always succeed, as the directory handling code in smbd will scan the directory
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looking for a matching name if it doesn't. It should succeed most of the time
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or there will be a huge performance penalty
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*/
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BOOL mangle_check_cache(char *s, size_t maxlen, int snum)
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{
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return mangle_fns->check_cache(s, maxlen, snum);
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}
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/*
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map a long filename to a 8.3 name.
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*/
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void mangle_map(pstring OutName, BOOL need83, BOOL cache83, int snum)
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{
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/* name mangling can be disabled for speed, in which case
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we just truncate the string */
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if (!lp_manglednames(snum)) {
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if (need83) {
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string_truncate(OutName, 12);
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}
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return;
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}
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/* invoke the inane "mangled map" code */
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mangle_map_filename(OutName, snum);
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mangle_fns->name_map(OutName, need83, cache83, lp_defaultcase(snum), snum);
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}
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