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
|
/*
Unix SMB/Netbios implementation.
Version 3.0
tdb utility functions
Copyright (C) Andrew Tridgell 1992-1998
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
/* these are little tdb utility functions that are meant to make
dealing with a tdb database a little less cumbersome in Samba */
/* fetch a value by a arbitrary blob key, return -1 if not found */
int tdb_get_int_byblob(TDB_CONTEXT *tdb, char *keyval, size_t len)
{
TDB_DATA key, data;
int ret;
key.dptr = keyval;
key.dsize = len;
data = tdb_fetch(tdb, key);
if (!data.dptr || data.dsize != sizeof(int)) return -1;
memcpy(&ret, data.dptr, sizeof(int));
free(data.dptr);
return ret;
}
/* fetch a value by string key, return -1 if not found */
int tdb_get_int(TDB_CONTEXT *tdb, char *keystr)
{
return tdb_get_int_byblob(tdb, keystr, strlen(keystr));
}
/* store a value by an arbitary blob key, return 0 on success, -1 on failure */
int tdb_store_int_byblob(TDB_CONTEXT *tdb, char *keystr, size_t len, int v)
{
TDB_DATA key, data;
key.dptr = keystr;
key.dsize = len;
data.dptr = (void *)&v;
data.dsize = sizeof(int);
return tdb_store(tdb, key, data, TDB_REPLACE);
}
/* store a value by string key, return 0 on success, -1 on failure */
int tdb_store_int(TDB_CONTEXT *tdb, char *keystr, int v)
{
return tdb_store_int_byblob(tdb, keystr, strlen(keystr), v);
}
/* Store a buffer by a null terminated string key. Return 0 on success, -1
on failure */
int tdb_store_by_string(TDB_CONTEXT *tdb, char *keystr, void *buffer, int len)
{
TDB_DATA key, data;
key.dptr = keystr;
key.dsize = strlen(keystr) + 1;
data.dptr = buffer;
data.dsize = len;
return tdb_store(tdb, key, data, TDB_REPLACE);
}
/* Fetch a buffer using a null terminated string key. Don't forget to call
free() on the result dptr. */
TDB_DATA tdb_fetch_by_string(TDB_CONTEXT *tdb, char *keystr)
{
TDB_DATA key;
key.dptr = keystr;
key.dsize = strlen(keystr) + 1;
return tdb_fetch(tdb, key);
}
|
