Fix compiling bsd/device.c on systems without utun.

[tinc] / src / graph.c

diff --git a/src/graph.c b/src/graph.c
index 9592f98..8ffd70e 100644 (file)
--- a/src/graph.c
+++ b/src/graph.c
@@ -1,6 +1,6 @@
 /*
     graph.c -- graph algorithms
-    Copyright (C) 2001-2013 Guus Sliepen <guus@tinc-vpn.org>,
+    Copyright (C) 2001-2014 Guus Sliepen <guus@tinc-vpn.org>,
                   2001-2005 Ivo Timmermans
 
     This program is free software; you can redistribute it and/or modify
@@ -340,6 +340,7 @@ void dump_graph(void) {
 
        if(!file) {
                logger(LOG_ERR, "Unable to open graph dump file %s: %s", filename, strerror(errno));
+               free(filename);
                free(tmpname);
                return;
        }
@@ -367,7 +368,10 @@ void dump_graph(void) {
 #ifdef HAVE_MINGW
                unlink(filename);
 #endif
-               rename(tmpname, filename);
+               if(rename(tmpname, filename))
+                       logger(LOG_ERR, "Could not rename %s to %s: %s\n", tmpname, filename, strerror(errno));
                free(tmpname);
        }
+
+       free(filename);
 }