1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/*
Unix SMB/CIFS implementation.
TDB wrap functions
Copyright (C) Andrew Tridgell 2004
Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "lib/tdb/include/tdb.h"
#include "lib/util/dlinklist.h"
#include "tdb_wrap.h"
#include "tdb.h"
static struct tdb_wrap *tdb_list;
/* destroy the last connection to a tdb */
static int tdb_wrap_destructor(struct tdb_wrap *w)
{
tdb_close(w->tdb);
DLIST_REMOVE(tdb_list, w);
return 0;
}
/*
Log tdb messages via DEBUG().
*/
static void tdb_wrap_log(TDB_CONTEXT *tdb, enum tdb_debug_level level,
const char *format, ...) PRINTF_ATTRIBUTE(3,4);
static void tdb_wrap_log(TDB_CONTEXT *tdb, enum tdb_debug_level level,
const char *format, ...)
{
va_list ap;
char *ptr = NULL;
int debug_level;
va_start(ap, format);
vasprintf(&ptr, format, ap);
va_end(ap);
switch (level) {
case TDB_DEBUG_FATAL:
debug_level = 0;
break;
case TDB_DEBUG_ERROR:
debug_level = 1;
break;
case TDB_DEBUG_WARNING:
debug_level = 2;
break;
case TDB_DEBUG_TRACE:
debug_level = 5;
break;
default:
debug_level = 0;
}
if (ptr != NULL) {
const char *name = tdb_name(tdb);
DEBUG(debug_level, ("tdb(%s): %s", name ? name : "unnamed", ptr));
free(ptr);
}
}
/*
wrapped connection to a tdb database
to close just talloc_free() the tdb_wrap pointer
*/
struct tdb_wrap *tdb_wrap_open(TALLOC_CTX *mem_ctx,
const char *name, int hash_size, int tdb_flags,
int open_flags, mode_t mode)
{
struct tdb_wrap *w;
struct tdb_logging_context log_ctx;
log_ctx.log_fn = tdb_wrap_log;
for (w=tdb_list;w;w=w->next) {
if (strcmp(name, w->name) == 0) {
return talloc_reference(mem_ctx, w);
}
}
w = talloc(mem_ctx, struct tdb_wrap);
if (w == NULL) {
return NULL;
}
w->name = talloc_strdup(w, name);
w->tdb = tdb_open_ex(name, hash_size, tdb_flags,
open_flags, mode, &log_ctx, NULL);
if (w->tdb == NULL) {
talloc_free(w);
return NULL;
}
talloc_set_destructor(w, tdb_wrap_destructor);
DLIST_ADD(tdb_list, w);
return w;
}
|
