REST/NAMESTORE: rework API

[oweals/gnunet.git] / src / cadet / gnunet-service-cadet_peer.c

diff --git a/src/cadet/gnunet-service-cadet_peer.c b/src/cadet/gnunet-service-cadet_peer.c
index 35e2c61487cb405f86373a365bde082612a132c2..8d55e6386d32bd172d41cbdf67782875073fe763 100644 (file)
--- a/src/cadet/gnunet-service-cadet_peer.c
+++ b/src/cadet/gnunet-service-cadet_peer.c
@@ -2,20 +2,20 @@
      This file is part of GNUnet.
      Copyright (C) 2001-2017 GNUnet e.V.
 
-     GNUnet is free software; you can redistribute it and/or modify
-     it under the terms of the GNU General Public License as published
-     by the Free Software Foundation; either version 3, or (at your
-     option) any later version.
+     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
-     General Public License for more details.
+     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/>.
 
-     You should have received a copy of the GNU General Public License
-     along with GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     SPDX-License-Identifier: AGPL3.0-or-later
 */
 
 /**
@@ -245,7 +245,17 @@ GCP_2s (const struct CadetPeer *cp)
   static char buf[5];
   char *ret;
 
+  if ((NULL == cp) || 
+      (NULL == &cp->pid.public_key))
+    return "NULL";
+  
+      
   ret = GNUNET_CRYPTO_eddsa_public_key_to_string (&cp->pid.public_key);
+  
+  if (NULL == ret)
+    return "NULL";
+  
+  
   strncpy (buf,
            ret,
            sizeof (buf) - 1);
@@ -1209,6 +1219,8 @@ GCP_iterate_paths (struct CadetPeer *cp,
        (NULL == cp->core_mq) ? "" : " including direct link");
   if (NULL != cp->core_mq)
   {
+    /* FIXME: this branch seems to duplicate the 
+       i=0 case below (direct link). Leave out!??? -CG */
     struct CadetPeerPath *path;
 
     path = GCPP_get_path_from_route (1,
@@ -1237,6 +1249,41 @@ GCP_iterate_paths (struct CadetPeer *cp,
   return ret;
 }
 
+/**
+ * Iterate over the paths to a peer without direct link.
+ *
+ * @param cp Peer to get path info.
+ * @param callback Function to call for every path.
+ * @param callback_cls Closure for @a callback.
+ * @return Number of iterated paths.
+ */
+unsigned int
+GCP_iterate_indirect_paths (struct CadetPeer *cp,
+                               GCP_PathIterator callback,
+                               void *callback_cls)
+{
+  unsigned int ret = 0;
+
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Iterating over paths to peer %s without direct link\n",
+       GCP_2s (cp));
+  for (unsigned int i=1;i<cp->path_dll_length;i++)
+  {
+    for (struct CadetPeerPathEntry *pe = cp->path_heads[i];
+         NULL != pe;
+         pe = pe->next)
+    {
+      ret++;
+      if (GNUNET_NO ==
+          callback (callback_cls,
+                    pe->path,
+                    i))
+        return ret;
+    }
+  }
+  return ret;
+}
+
 
 /**
  * Iterate over the paths to @a cp where