2 This file is part of GNUnet.
3 Copyright (C) 2009, 2012 GNUnet e.V.
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.
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.
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/>.
20 * @author Christian Grothoff
21 * @file util/resolver.h
26 #include "gnunet_common.h"
28 GNUNET_NETWORK_STRUCT_BEGIN
31 * Request for the resolver. Followed by either the "struct sockaddr"
32 * or the 0-terminated hostname.
34 * The response will be one or more messages of type
35 * RESOLVER_RESPONSE, each with the message header immediately
36 * followed by the requested data (0-terminated hostname or struct
37 * in[6]_addr, depending on direction). The last RESOLVER_RESPONSE
38 * will just be a header without any data (used to indicate the end of
41 struct GNUNET_RESOLVER_GetMessage
44 * Type: #GNUNET_MESSAGE_TYPE_RESOLVER_REQUEST
46 struct GNUNET_MessageHeader header;
49 * GNUNET_YES to get hostname from IP,
50 * GNUNET_NO to get IP from hostname.
52 int32_t direction GNUNET_PACKED;
55 * Address family to use (AF_INET, AF_INET6 or AF_UNSPEC).
57 int32_t af GNUNET_PACKED;
60 * identifies the request and is contained in the response message. The
61 * client has to match response to request by this identifier.
63 uint32_t client_id GNUNET_PACKED;
65 /* followed by 0-terminated string for A/AAAA-lookup or
66 by 'struct in_addr' / 'struct in6_addr' for reverse lookup */
71 struct GNUNET_RESOLVER_ResponseMessage
74 * Type: #GNUNET_MESSAGE_TYPE_RESOLVER_RESPONSE
76 struct GNUNET_MessageHeader header;
79 * identifies the request this message responds to. The client
80 * has to match response to request by this identifier.
82 uint32_t client_id GNUNET_PACKED;
84 /* followed by 0-terminated string for response to a reverse lookup
85 * or by 'struct in_addr' / 'struct in6_addr' for response to
90 GNUNET_NETWORK_STRUCT_END