2 This file is part of GNUnet.
3 (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
8 option) any later version.
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
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17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 * @file include/gnunet_resolver_service.h
23 * @brief functions related to doing DNS lookups
24 * @author Christian Grothoff
27 #ifndef GNUNET_RESOLVER_SERVICE_H
28 #define GNUNET_RESOLVER_SERVICE_H
33 #if 0 /* keep Emacsens' auto-indent happy */
38 #include "gnunet_configuration_lib.h"
39 #include "gnunet_scheduler_lib.h"
40 #include "gnunet_time_lib.h"
44 * Function called by the resolver for each address obtained from DNS.
47 * @param addr one of the addresses of the host, NULL for the last address
48 * @param addrlen length of the address
50 typedef void (*GNUNET_RESOLVER_AddressCallback) (void *cls,
51 const struct sockaddr * addr,
56 * Convert a string to one or more IP addresses.
58 * @param sched scheduler to use
59 * @param cfg configuration to use
60 * @param hostname the hostname to resolve
61 * @param domain AF_INET or AF_INET6; use AF_UNSPEC for "any"
62 * @param callback function to call with addresses
63 * @param cls closure for callback
64 * @param timeout how long to try resolving
67 GNUNET_RESOLVER_ip_get (struct GNUNET_SCHEDULER_Handle *sched,
68 struct GNUNET_CONFIGURATION_Handle *cfg,
71 struct GNUNET_TIME_Relative timeout,
72 GNUNET_RESOLVER_AddressCallback callback, void *cls);
76 * Resolve our hostname to an IP address.
78 * @param sched scheduler to use
79 * @param cfg configuration to use
80 * @param domain AF_INET or AF_INET6; use AF_UNSPEC for "any"
81 * @param callback function to call with addresses
82 * @param cls closure for callback
83 * @param timeout how long to try resolving
86 GNUNET_RESOLVER_hostname_resolve (struct GNUNET_SCHEDULER_Handle *sched,
87 struct GNUNET_CONFIGURATION_Handle *cfg,
89 struct GNUNET_TIME_Relative timeout,
90 GNUNET_RESOLVER_AddressCallback callback,
95 * Function called by the resolver for each hostname obtained from DNS.
98 * @param hostname one of the names for the host, NULL
99 * on the last call to the callback
101 typedef void (*GNUNET_RESOLVER_HostnameCallback) (void *cls,
102 const char *hostname);
106 * Get an IP address as a string.
108 * @param sched scheduler to use
109 * @param cfg configuration to use
110 * @param sa host address
111 * @param salen length of host address
112 * @param do_resolve use GNUNET_NO to return numeric hostname
113 * @param timeout how long to try resolving
114 * @param callback function to call with hostnames
115 * @param cls closure for callback
117 void GNUNET_RESOLVER_hostname_get (struct GNUNET_SCHEDULER_Handle *sched,
118 struct GNUNET_CONFIGURATION_Handle *cfg,
119 const struct sockaddr *sa,
122 struct GNUNET_TIME_Relative timeout,
123 GNUNET_RESOLVER_HostnameCallback callback,
126 #if 0 /* keep Emacsens' auto-indent happy */
133 /* ifndef GNUNET_RESOLVER_SERVICE_H */
135 /* end of gnunet_resolver_service.h */