1 files changed, 73 insertions, 0 deletions

diff --git a/src/service/gns/nss/nss_gns_query.h b/src/service/gns/nss/nss_gns_query.h
new file mode 100644
index 000000000..43bf21646
--- /dev/null
+++ b/src/service/gns/nss/nss_gns_query.h
@@ -0,0 +1,73 @@
+/*
+     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
+ */
+#include <inttypes.h>
+
+/* Maximum number of entries to return */
+#define MAX_ENTRIES 16
+
+typedef struct
+{
+  uint32_t address;
+} ipv4_address_t;
+
+
+typedef struct
+{
+  uint8_t address[16];
+} ipv6_address_t;
+
+
+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];
+  } data;
+};
+
+
+/**
+ * Wrapper function that uses gnunet-gns cli tool to resolve
+ * an IPv4/6 address.
+ *
+ * @param af address family
+ * @param name the name to resolve
+ * @param u the userdata (result struct)
+ * @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);
+
+#endif