/*
device.c -- Interaction with Windows tap driver in a Cygwin environment
- Copyright (C) 2002-2003 Ivo Timmermans <ivo@o2w.nl>,
- 2002-2003 Guus Sliepen <guus@sliepen.eu.org>
+ Copyright (C) 2002-2004 Ivo Timmermans <ivo@tinc-vpn.org>,
+ 2002-2004 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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: device.c,v 1.1.2.15 2003/08/02 21:33:18 guus Exp $
+ $Id$
*/
#include "system.h"
bool setup_device(void)
{
HKEY key, key2;
- int i;
+ int i, err;
char regpath[1024];
char adapterid[1024];
continue;
len = sizeof(adaptername);
- RegQueryValueEx(key2, "Name", 0, 0, adaptername, &len);
+ err = RegQueryValueEx(key2, "Name", 0, 0, adaptername, &len);
RegCloseKey(key2);
+ if(err)
+ continue;
+
if(device) {
if(!strcmp(device, adapterid)) {
found = true;
device_handle = CreateFile(tapname, GENERIC_WRITE, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM , 0);
if(device_handle == INVALID_HANDLE_VALUE) {
- logger(LOG_ERR, _("Could not open Windows tap device for writing: %s"), winerror(GetLastError()));
+ logger(LOG_ERR, _("Could not open Windows tap device %s (%s) for writing: %s"), device, iface, winerror(GetLastError()));
return false;
}
/* Get MAC address from tap device */
if(!DeviceIoControl(device_handle, TAP_IOCTL_GET_MAC, mymac.x, sizeof(mymac.x), mymac.x, sizeof(mymac.x), &len, 0)) {
- logger(LOG_ERR, _("Could not get MAC address from Windows tap device: %s"), winerror(GetLastError()));
+ logger(LOG_ERR, _("Could not get MAC address from Windows tap device %s (%s): %s"), device, iface, winerror(GetLastError()));
return false;
}
device_handle = CreateFile(tapname, GENERIC_READ, FILE_SHARE_WRITE, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM, 0);
if(device_handle == INVALID_HANDLE_VALUE) {
- logger(LOG_ERR, _("Could not open Windows tap device for reading: %s"), winerror(GetLastError()));
+ logger(LOG_ERR, _("Could not open Windows tap device %s (%s) for reading: %s"), device, iface, winerror(GetLastError()));
buf[0] = 0;
write(sp[1], buf, 1);
exit(1);