From: Guus Sliepen <guus@sliepen.org>
Date: Tue, 29 Jul 2014 14:59:08 +0000 (+0200)
Subject: Zero the struct meshlink_handle in meshlink_close().
X-Git-Url: https://git.meshlink.io/?a=commitdiff_plain;h=9415492f4d32d5468050a677411de939bfd933bc;p=meshlink

Zero the struct meshlink_handle in meshlink_close().

This prevents potentially bad behaviour when the application calls
meshlink_close() twice on the same pointer.
---

diff --git a/src/meshlink.c b/src/meshlink.c
index b3e87faa..3651988f 100644
--- a/src/meshlink.c
+++ b/src/meshlink.c
@@ -853,11 +853,19 @@ void meshlink_close(meshlink_handle_t *mesh) {
 	exit_configuration(&mesh->config);
 	event_loop_exit(&mesh->loop);
 
-	free(mesh);
-
 #ifdef HAVE_MINGW
-	WSACleanup();
+	if(mesh->confbase)
+		WSACleanup();
 #endif
+
+	ecdsa_free(mesh->invitation_key);
+
+	free(mesh->name);
+	free(mesh->confbase);
+
+	free(mesh);
+
+	memset(mesh, 0, sizeof *mesh);
 }
 
 void meshlink_set_receive_cb(meshlink_handle_t *mesh, meshlink_receive_cb_t cb) {