continue
        idx = line.find("address:")
        if idx != -1:
            url = line[idx+9:]
            if url.startswith('*:'):
                url = "localhost"+url[1:]
    if url is None:
        print >>sys.stderr, "ERROR parsing 'info spice' output:",output
        return None
    return "spice://" + url.rstrip('\r')



def list_bridges():
    """ Return list of bridge network interfaces present in the system """

                    f["type"]=vmtype
                    sock = connect_vm(dirname + "/" + vmname)
                    if sock is None:
                        f.update({"state":"stopped","uri":"-","ip":"-"})
                        f.update(read_netinfo(dirname + "/" + vmname + "/start"))
                    else:
                        uri=spiceurl(sock)
                        if uri is None:
                            f.update({"state":"problem","uri":"None","ip":"-"})
                            f.update(read_netinfo(dirname + "/" + vmname + "/start"))
                        else:
                            f["uri"]=uri[uri.rindex(":")+1:]
                            f.update(get_netinfo(sock))
                            if "ip" not in f:
                                bridges.add(f["iface"])
                            sock.shutdown(socket.SHUT_RDWR)
                            sock.close()
                            f["state"] = "running"
                vms.append(f)
    arp_data={}
    for bridge in bridges:
        arp_data.update(parse_arp(bridge))
    for f in sorted(vms,key=lambda x: x["name"]):
        if "state" in f:
            if "mac" in f and not "ip" in f:

to set up password which lets to connect them via network.

It is allowed to redirect USB devices either via SPICE (i.e. from the
user workplace), or from host where VW is running. ISO images can be
mounted as CDROMs only from host.

VW CREATION

===========

**vws create** command creates basic layout of the virtual machine -
virtual disk image and startup script and optionally starts installation
process connecting specified ISO-image to virtual CD-ROM drive.

It is also possible to create new machine with copy of existing virtual
drive.

from your network router. If you use NAT, you'll need to run DHCP
server, for instance **dnsmasq**(8) on your host and make it serve your bridge
interface. You can live without DHCP on bridge, but it would be your
problem to configure IP address on each VW manually. If you are planning
to deploy many VWs with different operating systems, it is better to
have DHCP running.

Options of **vws create** command
---------------------------------

Almost all options of create command can be omitted. In this case,
defaults from **/etc/vws.conf** or **${HOME}/.vwsrc**  would be used.

Typically one needs just **--image** or **--install** option, unless he
wants to alter hardware configuration.

**--no-usb**

  : disable USB controller and USB redirection.

**--no-sound**

  : disable sound card.

**--sound** *cardtype*

  : Use given soundcard model. Can be comma-separated list of card models.  Use  ``qemu-system -soundhw help``  for list of sound cards, supported on your system.

**--arch** *cputype*

  : Emulated architecture. Note that emulation of foreign arch can be very slow.

**--vga** *cardtype*

  : Video card type (cirrus,std,vmware,qxl). Use **qxl** unless you are sure that guest OS doesn't work with it.

**--mem** *size*

  : Size of memory. Can have suffix **M** for megabytes and **G** for gigabytes

**--size** *size*

  : Size of primary disk image to create. Not needed if **--image** is specified.

**--net** *ifname*

  : Network interface name. Typically it is name of bridge interface which would be used to add network interface of virtual machine. Bridge interface must exist before issuing **create** command and preferable should run some DHCP server. Also word **user** can be used instead of bridge name, which means to use QEMU user mode networking.

**--diskif** *type*:

  : Disk interface (virtio, scsi, ide). **virtio** interface is fastest, but some OSes do not support it out of the box. So, you may need to install OS using **ide** or **scsi** interface, then install virtio drivers and then change interface.

**--image** *filename*

  : Existing disk image to import. If this option is specified, primary disk image would be created by importing given image, rather creating new one of specified **--size**. Import would always create a copy, not use original image. Image can have any format, supported by **qemu-img**(1), including VMware and VirtualBox images.

**--shared**

  : Create shared VW instead of private one
  
**--install** *filename.iso*

  : ISO image to install OS from. If this option is specified, virtual machine would be started immediately after creation and given image would be booted from.

USAGE
=====

STARTING AND STOPPING
---------------------

**vws start** \[ **--cdrom** _iso-image_\] \[**--snapshot**\] \[**--no-gui**\] \[**--args** *qemu-args*\] *vw-name*

Starts virtual machine. Optionally, connects specified *iso-image* to
its CD-ROM drive. If **--no-gui** is not specified, starts spice client
(remote-viewer) to connect to this machine. If **--snapshot** is
specified, starts machine in the snapshot mode, i.e. nothing is written
into drive images. You need a lot of space in the */tmp* to run in
snapshot mode.