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DEFINITIONS
This source file includes following definitions.
- get_control_from_list
- save_controls
- check_critical_controls
1 /*
2 ldb database library
3
4 Copyright (C) Simo Sorce 2005
5
6 ** NOTE! The following LGPL license applies to the ldb
7 ** library. This does NOT imply that all of Samba is released
8 ** under the LGPL
9
10 This library is free software; you can redistribute it and/or
11 modify it under the terms of the GNU Lesser General Public
12 License as published by the Free Software Foundation; either
13 version 3 of the License, or (at your option) any later version.
14
15 This library is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
19
20 You should have received a copy of the GNU Lesser General Public
21 License along with this library; if not, see <http://www.gnu.org/licenses/>.
22 */
23
24 /*
25 * Name: ldb_controls.c
26 *
27 * Component: ldb controls utility functions
28 *
29 * Description: helper functions for control modules
30 *
31 * Author: Simo Sorce
32 */
33
34 #include "includes.h"
35 #include "ldb/include/includes.h"
36
37 /* check if a control with the specified "oid" exist and return it */
38 /* returns NULL if not found */
39 struct ldb_control *get_control_from_list(struct ldb_control **controls, const char *oid)
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40 {
41 int i;
42
43 /* check if there's a paged request control */
44 if (controls != NULL) {
45 for (i = 0; controls[i]; i++) {
46 if (strcmp(oid, controls[i]->oid) == 0) {
47 break;
48 }
49 }
50
51 return controls[i];
52 }
53
54 return NULL;
55 }
56
57 /* saves the current controls list into the "saver" and replace the one in req with a new one excluding
58 the "exclude" control */
59 /* returns False on error */
60 int save_controls(struct ldb_control *exclude, struct ldb_request *req, struct ldb_control ***saver)
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61 {
62 struct ldb_control **lcs;
63 int i, j;
64
65 *saver = req->controls;
66 for (i = 0; req->controls[i]; i++);
67 if (i == 1) {
68 req->controls = NULL;
69 return 1;
70 }
71
72 lcs = talloc_array(req, struct ldb_control *, i);
73 if (!lcs) {
74 return 0;
75 }
76
77 for (i = 0, j = 0; (*saver)[i]; i++) {
78 if (exclude == (*saver)[i]) continue;
79 lcs[j] = (*saver)[i];
80 j++;
81 }
82 lcs[j] = NULL;
83
84 req->controls = lcs;
85 return 1;
86 }
87
88 /* check if there's any control marked as critical in the list */
89 /* return True if any, False if none */
90 int check_critical_controls(struct ldb_control **controls)
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91 {
92 int i;
93
94 if (controls == NULL) {
95 return 0;
96 }
97
98 for (i = 0; controls[i]; i++) {
99 if (controls[i]->critical) {
100 return 1;
101 }
102 }
103
104 return 0;
105 }