Wipe (some) secrets from memory after use

[tinc] / src / edge.c

diff --git a/src/edge.c b/src/edge.c
index c521d0e..baa6d26 100644 (file)
--- a/src/edge.c
+++ b/src/edge.c
@@ -71,10 +71,12 @@ edge_t *new_edge(void) {
 }
 
 void free_edge(edge_t *e) {
-       sockaddrfree(&e->address);
-       sockaddrfree(&e->local_address);
+       if(e) {
+               sockaddrfree(&e->address);
+               sockaddrfree(&e->local_address);
 
-       free(e);
+               free(e);
+       }
 }
 
 void edge_add(edge_t *e) {