2 This file is part of GNUnet.
3 Copyright (C) 2013 Christian Grothoff
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
23 * Library to read and write the FRIENDS file
25 * @defgroup friends Friends library
26 * Library to read and write the FRIENDS file
29 #ifndef GNUNET_FRIENDS_LIB_H
30 #define GNUNET_FRIENDS_LIB_H
35 #if 0 /* keep Emacsens' auto-indent happy */
40 #include "gnunet_util_lib.h"
44 * Signature of a function called on each friend found.
47 * @param friend_id peer identity of the friend
49 typedef void (*GNUNET_FRIENDS_Callback)(void *cls,
50 const struct GNUNET_PeerIdentity *friend_id);
54 * Parse the FRIENDS file.
56 * @param cfg our configuration
57 * @param cb function to call on each friend found
58 * @param cb_cls closure for @a cb
59 * @return #GNUNET_OK on success, #GNUNET_SYSERR on parsing errors
62 GNUNET_FRIENDS_parse (const struct GNUNET_CONFIGURATION_Handle *cfg,
63 GNUNET_FRIENDS_Callback cb,
68 * Handle for writing a friends file.
70 struct GNUNET_FRIENDS_Writer;
74 * Start writing a fresh FRIENDS file. Will make a backup of the
77 * @param cfg configuration to use.
78 * @return NULL on error
80 struct GNUNET_FRIENDS_Writer *
81 GNUNET_FRIENDS_write_start (const struct GNUNET_CONFIGURATION_Handle *cfg);
85 * Finish writing out the friends file.
87 * @param w write handle
88 * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
91 GNUNET_FRIENDS_write_stop (struct GNUNET_FRIENDS_Writer *w);
95 * Add a friend to the friends file.
97 * @param w write handle
98 * @param friend_id friend to add
99 * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
102 GNUNET_FRIENDS_write (struct GNUNET_FRIENDS_Writer *w,
103 const struct GNUNET_PeerIdentity *friend_id);
106 #if 0 /* keep Emacsens' auto-indent happy */
115 /** @} */ /* end of group */