X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fgraph.c;h=431a72a559f068d34fa0a61002e26602b884950e;hb=902446edf822a32383c4fa4b7c13b83a568095ad;hp=18376c14956a619a9e99441365fd44c42a7cfa18;hpb=529b8fab8c21e7ae5af91d742ff202eab38e51f3;p=meshlink

diff --git a/src/graph.c b/src/graph.c
index 18376c14..431a72a5 100644
--- a/src/graph.c
+++ b/src/graph.c
@@ -72,7 +72,7 @@ static void sssp_bfs(meshlink_handle_t *mesh) {
 
 	/* Begin with mesh->self */
 
-	mesh->self->status.visited = true;
+	mesh->self->status.visited = mesh->threadstarted;
 	mesh->self->nexthop = mesh->self;
 	mesh->self->prevedge = NULL;
 	mesh->self->distance = 0;
@@ -173,12 +173,22 @@ static void check_reachability(meshlink_handle_t *mesh) {
 			n->status.reachable = !n->status.reachable;
 			n->status.dirty = true;
 
-			if(n->status.reachable) {
-				logger(mesh, MESHLINK_DEBUG, "Node %s became reachable", n->name);
-				n->last_reachable = mesh->loop.now.tv_sec;
-			} else {
-				logger(mesh, MESHLINK_DEBUG, "Node %s became unreachable", n->name);
-				n->last_unreachable = mesh->loop.now.tv_sec;
+			if(!n->status.blacklisted) {
+				if(n->status.reachable) {
+					logger(mesh, MESHLINK_DEBUG, "Node %s became reachable", n->name);
+					bool first_time_reachable = !n->last_reachable;
+					n->last_reachable = mesh->loop.now.tv_sec;
+
+					if(first_time_reachable) {
+						if(!node_write_config(mesh, n)) {
+							logger(mesh, MESHLINK_WARNING, "Could not write host config file for node %s!\n", n->name);
+
+						}
+					}
+				} else {
+					logger(mesh, MESHLINK_DEBUG, "Node %s became unreachable", n->name);
+					n->last_unreachable = mesh->loop.now.tv_sec;
+				}
 			}
 
 			/* TODO: only clear status.validkey if node is unreachable? */