Merge branch 'master' of git+ssh://gnunet.org/gnunet

[oweals/gnunet.git] / src / gns / nss / nss_gns_query.h

diff --git a/src/gns/nss/nss_gns_query.h b/src/gns/nss/nss_gns_query.h
index 0b4dae5e7417c1b8f4985cc158a966cc3c02f811..30ba76fd92b087477e216f3aee31ba5831e213b0 100644 (file)
--- a/src/gns/nss/nss_gns_query.h
+++ b/src/gns/nss/nss_gns_query.h
@@ -1,55 +1,57 @@
+/*
+     This file is part of GNUnet.
+     Copyright (C) 2012 GNUnet e.V.
+
+     GNUnet is free software: you can redistribute it and/or modify it
+     under the terms of the GNU Affero General Public License as published
+     by the Free Software Foundation, either version 3 of the License,
+     or (at your option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     Affero General Public License for more details.
+
+     You should have received a copy of the GNU Affero General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: AGPL3.0-or-later
+*/
 #ifndef NSS_GNS_QUERY_H
 #define NSS_GNS_QUERY_H
 
 /**
- * Parts taken from nss-mdns. Original license statement follows
+ * Parts taken from nss-mdns
  */
-
-/* $Id$ */
-
-/***
-  This file is part of nss-mdns.
- 
-  nss-mdns is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as
-  published by the Free Software Foundation; either version 2 of the
-  License, or (at your option) any later version.
- 
-  nss-mdns is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  General Public License for more details.
- 
-  You should have received a copy of the GNU Lesser General Public
-  License along with nss-mdns; if not, write to the Free Software
-  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
-  USA.
-***/
-
 #include <inttypes.h>
 
 /* Maximum number of entries to return */
 #define MAX_ENTRIES 16
 
-typedef struct {
-    uint32_t address;
+typedef struct
+{
+  uint32_t address;
 } ipv4_address_t;
 
-typedef struct {
-    uint8_t address[16];
+
+typedef struct
+{
+  uint8_t address[16];
 } ipv6_address_t;
 
 
-struct userdata {
+struct userdata
+{
   int count;
   int data_len; /* only valid when doing reverse lookup */
   union  {
-      ipv4_address_t ipv4[MAX_ENTRIES];
-      ipv6_address_t ipv6[MAX_ENTRIES];
-      char *name[MAX_ENTRIES];
+    ipv4_address_t ipv4[MAX_ENTRIES];
+    ipv6_address_t ipv6[MAX_ENTRIES];
+    char *name[MAX_ENTRIES];
   } data;
 };
 
+
 /**
  * Wrapper function that uses gnunet-gns cli tool to resolve
  * an IPv4/6 address.
@@ -57,10 +59,14 @@ struct userdata {
  * @param af address family
  * @param name the name to resolve
  * @param u the userdata (result struct)
- * @return -1 on error else 0
+ * @return -1 on internal error,
+ *         -2 if request is not for GNS,
+ *         -3 on timeout,
+ *          else 0
  */
-int gns_resolve_name(int af,
-               const char *name,
-               struct userdata *userdata);
+int
+gns_resolve_name(int af,
+                 const char *name,
+                 struct userdata *userdata);
 
 #endif