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Diffstat (limited to 'src/messenger/messenger_api_util.c')
-rw-r--r-- | src/messenger/messenger_api_util.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/messenger/messenger_api_util.c b/src/messenger/messenger_api_util.c new file mode 100644 index 000000000..68e15d789 --- /dev/null +++ b/src/messenger/messenger_api_util.c | |||
@@ -0,0 +1,84 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2020--2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @author Tobias Frisch | ||
22 | * @file src/messenger/messenger_api_util.c | ||
23 | * @brief messenger api: client implementation of GNUnet MESSENGER service | ||
24 | */ | ||
25 | |||
26 | #include "messenger_api_util.h" | ||
27 | |||
28 | static void | ||
29 | callback_close_channel (void *cls) | ||
30 | { | ||
31 | struct GNUNET_CADET_Channel *channel = cls; | ||
32 | |||
33 | if (channel) | ||
34 | GNUNET_CADET_channel_destroy (channel); | ||
35 | } | ||
36 | |||
37 | void | ||
38 | delayed_disconnect_channel (struct GNUNET_CADET_Channel *channel) | ||
39 | { | ||
40 | GNUNET_assert(channel); | ||
41 | |||
42 | GNUNET_SCHEDULER_add_delayed_with_priority (GNUNET_TIME_relative_get_zero_ (), | ||
43 | GNUNET_SCHEDULER_PRIORITY_URGENT, | ||
44 | callback_close_channel, channel); | ||
45 | } | ||
46 | |||
47 | int | ||
48 | generate_free_member_id (struct GNUNET_ShortHashCode *id, const struct GNUNET_CONTAINER_MultiShortmap *members) | ||
49 | { | ||
50 | GNUNET_assert(id); | ||
51 | |||
52 | size_t counter = 1 + (members ? GNUNET_CONTAINER_multishortmap_size (members) : 0); | ||
53 | |||
54 | do | ||
55 | { | ||
56 | GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_STRONG, id, sizeof(struct GNUNET_ShortHashCode)); | ||
57 | |||
58 | if ((members) && (GNUNET_YES == GNUNET_CONTAINER_multishortmap_contains (members, id))) | ||
59 | counter--; | ||
60 | else | ||
61 | break; | ||
62 | } | ||
63 | while (counter > 0); | ||
64 | |||
65 | if (counter) | ||
66 | return GNUNET_YES; | ||
67 | |||
68 | return GNUNET_NO; | ||
69 | } | ||
70 | |||
71 | const struct GNUNET_IDENTITY_PublicKey* | ||
72 | get_anonymous_public_key () | ||
73 | { | ||
74 | static struct GNUNET_IDENTITY_PublicKey public_key; | ||
75 | static struct GNUNET_IDENTITY_Ego* ego = NULL; | ||
76 | |||
77 | if (!ego) | ||
78 | { | ||
79 | ego = GNUNET_IDENTITY_ego_get_anonymous(); | ||
80 | GNUNET_IDENTITY_ego_get_public_key(ego, &public_key); | ||
81 | } | ||
82 | |||
83 | return &public_key; | ||
84 | } | ||