X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fcygwin%2Fdevice.c;h=4c3a60d99583623b80b91fc1c63424b419cc01be;hb=04fc19112da5e7fcefefcf6e490987cdcfb6f620;hp=a110f7f2bc0e9600bf75a3a5cc495b941fa5fff1;hpb=41583d5dcfc1277b1a203478de4cce2cd0cda1b1;p=tinc

diff --git a/src/cygwin/device.c b/src/cygwin/device.c
index a110f7f2..4c3a60d9 100644
--- a/src/cygwin/device.c
+++ b/src/cygwin/device.c
@@ -1,7 +1,7 @@
 /*
     device.c -- Interaction with Windows tap driver in a Cygwin environment
     Copyright (C) 2002-2005 Ivo Timmermans,
-                  2002-2013 Guus Sliepen <guus@tinc-vpn.org>
+                  2002-2014 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -215,18 +215,19 @@ static bool setup_device(void) {
 static void close_device(void) {
 	close(sp[0]);
 	close(sp[1]);
-	CloseHandle(device_handle);
+	CloseHandle(device_handle); device_handle = INVALID_HANDLE_VALUE;
 
 	kill(reader_pid, SIGKILL);
 
-	free(device);
-	free(iface);
+	free(device); device = NULL;
+	free(iface); iface = NULL;
+	device_info = NULL;
 }
 
 static bool read_packet(vpn_packet_t *packet) {
 	int inlen;
 
-	if((inlen = read(sp[0], packet->data, MTU)) <= 0) {
+	if((inlen = read(sp[0], DATA(packet), MTU)) <= 0) {
 		logger(DEBUG_ALWAYS, LOG_ERR, "Error while reading from %s %s: %s", device_info,
 			   device, strerror(errno));
 		return false;
@@ -246,7 +247,7 @@ static bool write_packet(vpn_packet_t *packet) {
 	logger(DEBUG_TRAFFIC, LOG_DEBUG, "Writing packet of %d bytes to %s",
 			   packet->len, device_info);
 
-	if(!WriteFile (device_handle, packet->data, packet->len, &outlen, NULL)) {
+	if(!WriteFile (device_handle, DATA(packet), packet->len, &outlen, NULL)) {
 		logger(DEBUG_ALWAYS, LOG_ERR, "Error while writing to %s %s: %s", device_info, device, winerror(GetLastError()));
 		return false;
 	}