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Commit 3fcab6f1 authored by runge's avatar runge
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x11vnc: -users sslpeer= option. RFB_SSL_CLIENT_CERT, -ncache 10 default

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classes/ssl/SignedVncViewer.jar
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x11vnc/ChangeLog
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2007-04-28 Karl Runge <runge@karlrunge.com>
* x11vnc: -users sslpeer= option. RFB_SSL_CLIENT_CERT var.
X11VNC_FINDDISPLAY_ALWAYS_FAILS var. -ncache default 10.
gid switch fix.
* ssvnc: Linux.i*86 fix and code sync.
2007-04-07 Karl Runge <runge@karlrunge.com>
* x11vnc: add gnome, kde, etc. FINDCREATEDISPLAY tags.
In check_ncache periodically check for changed desktop.
......
x11vnc/README
View file @ 3fcab6f1
x11vnc README file Date: Wed Apr 18 22:27:25 EDT 2007
x11vnc README file Date: Fri Apr 27 15:59:32 EDT 2007
The following information is taken from these URLs:
......@@ -398,8 +398,8 @@ vncviewer -via $host localhost:0 # must be TightVNC vncviewer.
SourceForge.net. I use libvncserver for all of the VNC aspects; I
couldn't have done without it. The full source code may be found and
downloaded (either file-release tarball or CVS tree) from the above
link. As of Feb 2007, the [70]x11vnc-0.8.4.tar.gz source package is
released (recommended download). The [71]x11vnc 0.8.4 release notes.
link. As of Apr 2007, the [70]x11vnc-0.9.tar.gz source package is
released (recommended download). The [71]x11vnc 0.9 release notes.
The x11vnc package is the subset of the libvncserver package needed to
build the x11vnc program. Also, you can get a copy of my latest,
......@@ -417,6 +417,7 @@ vncviewer -via $host localhost:0 # must be TightVNC vncviewer.
* [76]http://sourceforge.net/projects/cotvnc/
* [77]http://www.ultravnc.com/
* [78]Our Enhanced TightVNC Viewer (SSVNC)
[ssvnc.gif]
More tools: Here is a rsh/ssh wrapper script rx11vnc that attempts to
......@@ -1764,6 +1765,7 @@ typedef unsigned int in_addr_t;
* [322]http://sourceforge.net/projects/cotvnc/
* [323]http://www.ultravnc.com/
* [324]Our Enhanced TightVNC Viewer (SSVNC)
[ssvnc.gif]
Q-7: How can I see all of x11vnc's command line options and
......@@ -1808,6 +1810,8 @@ display :0
displayed on other:0, not the X display x11vnc is polling. There is
also a "[327]-gui tray" system tray mode.
[tkx11vnc.gif]
Q-9: How can I get the GUI to run in the System Tray, or at least be a
smaller, simpler icon?
......@@ -3589,7 +3593,8 @@ x11vnc -logfile $HOME/.x11vnc.log -rfbauth $HOME/.vnc/passwd -forever -bg
any other X clients) to be killed after the user logs in. Setting
KillInitClients=false in the [daemon] section of /etc/X11/gdm/gdm.conf
avoids this. Otherwise, just restart x11vnc and then reconnect your
viewer.
viewer. Other display managers (kdm, etc) may also have a similar
problem.
Note: For dtlogin in addition to the above sort of trick (BTW, the
auth file should be in /var/dt), you'll also need to add something
......@@ -3626,7 +3631,8 @@ x11vnc -logfile $HOME/.x11vnc.log -rfbauth $HOME/.vnc/passwd -forever -bg
watch out for.
Note: The above gdm setting of KillInitClients=false in
/etc/X11/gdm/gdm.conf is needed here as well.
/etc/X11/gdm/gdm.conf is needed here as well. Other display managers
(kdm, etc) may also have a similar problem.
Note: The above Dtlogin*grabServer:False step will be needed for
dtlogin here as well.
......@@ -4594,21 +4600,25 @@ ied)
be tried, probably the best it will do is automatically stop using X
DAMAGE.
Update: see [608]this FAQ too.
A developer for [608]MiniMyth reports that the 'alphapulse' tag of the
theme G.A.N.T. can also cause problems, and should be avoided when
using VNC.
Update: see [609]this FAQ too.
Q-67: When I drag windows around with the mouse or scroll up and down
things really bog down (unless I do the drag in a single, quick
motion). Is there anything to do to improve things?
This problem is primarily due to [609]slow hardware read rates from
This problem is primarily due to [610]slow hardware read rates from
video cards: as you scroll or move a large window around the screen
changes are much too rapid for x11vnc to keep up them (it can usually
only read the video card at about 5-10 MB/sec, so it can take a good
fraction of a second to read the changes induce from moving a large
window, if this to be done a number of times in succession the window
or scroll appears to "lurch" forward). See the description in the
[610]-pointer_mode option for more info. The next bottleneck is
[611]-pointer_mode option for more info. The next bottleneck is
compressing all of these changes and sending them out to connected
viewers, however the VNC protocol is pretty much self-adapting with
respect to that (updates are only packaged and sent when viewers ask
......@@ -4618,26 +4628,26 @@ ied)
default should now be much better than before and dragging small
windows around should no longer be a huge pain. If for some reason
these changes make matters worse, you can go back to the old way via
the "[611]-pointer_mode 1" option.
the "[612]-pointer_mode 1" option.
Also added was the [612]-nodragging option that disables all screen
Also added was the [613]-nodragging option that disables all screen
updates while dragging with the mouse (i.e. mouse motion with a button
held down). This gives the snappiest response, but might be undesired
in some circumstances when you want to see the visual feedback while
dragging (e.g. menu traversal or text selection).
As of Dec/2004 the [613]-pointer_mode n option was introduced. n=1 is
As of Dec/2004 the [614]-pointer_mode n option was introduced. n=1 is
the original mode, n=2 an improvement, etc.. See the -pointer_mode n
help for more info.
Also, in some circumstances the [614]-threads option can improve
Also, in some circumstances the [615]-threads option can improve
response considerably. Be forewarned that if more than one vncviewer
is connected at the same time then libvncserver may not be thread safe
(try to get the viewers to use different VNC encodings, e.g. tight and
ZRLE).
As of Apr/2005 two new options (see the [615]wireframe FAQ and
[616]scrollcopyrect FAQ below) provide schemes to sweep this problem
As of Apr/2005 two new options (see the [616]wireframe FAQ and
[617]scrollcopyrect FAQ below) provide schemes to sweep this problem
under the rug for window moves or resizes and for some (but not all)
window scrolls. These are the preferred way of avoiding the "lurching"
problem, contact me if they are not working. Note on SuSE and some
......@@ -4661,8 +4671,8 @@ EndSection
the window move/resize stops, it returns to normal processing: you
should only see the window appear in the new position. This spares you
from interacting with a "lurching" window between all of the
intermediate steps. BTW the lurching is due to [617]slow video card
read rates (see [618]here too). A displacement, even a small one, of a
intermediate steps. BTW the lurching is due to [618]slow video card
read rates (see [619]here too). A displacement, even a small one, of a
large window requires a non-negligible amount of time, a good fraction
of a second, to read in from the hardware framebuffer.
......@@ -4670,7 +4680,7 @@ EndSection
for -wireframe to do any good.
The mode is currently on by default because most people are afflicted
with the problem. It can be disabled with the [619]-nowireframe option
with the problem. It can be disabled with the [620]-nowireframe option
(aka -nowf). Why might one want to turn off the wireframing? Since
x11vnc is merely guessing when windows are being moved/resized, it may
guess poorly for your window-manager or desktop, or even for the way
......@@ -4715,13 +4725,13 @@ EndSection
* Maximum time to show a wireframe animation.
* Minimum time between sending wireframe outlines.
See the [620]"-wireframe tweaks" option for more details. On a slow
See the [621]"-wireframe tweaks" option for more details. On a slow
link, e.g. dialup modem, the parameters may be automatically adjusted
for better response.
CopyRect encoding: In addition to the above there is the
[621]"-wirecopyrect mode" option. It is also on by default. This
[622]"-wirecopyrect mode" option. It is also on by default. This
instructs x11vnc to not only show the wireframe animation, but to also
instruct all connected VNC viewers to locally translate the window
image data from the original position to the new position on the
......@@ -4769,7 +4779,7 @@ EndSection
requiring the image data to be transmitted over the network. For fast
links the speedup is primarily due to x11vnc not having to read the
scrolled framebuffer data from the X server (recall that reading from
the hardware framebuffer is [622]slow).
the hardware framebuffer is [623]slow).
To do this x11vnc uses the RECORD X extension to snoop the X11
protocol between the X client with the focus window and the X server.
......@@ -4796,10 +4806,10 @@ EndSection
the X server display: if one falls too far behind it could become a
mess...
The initial implementation of [623]-scrollcopyrect option is useful in
The initial implementation of [624]-scrollcopyrect option is useful in
that it detects many scrolls and thus gives a much nicer working
environment (especially when combined with the [624]-wireframe
[625]-wirecopyrect [626]options, which are also on by default; and if
environment (especially when combined with the [625]-wireframe
[626]-wirecopyrect [627]options, which are also on by default; and if
you are willing to enable the ShadowFB things are very fast). The fact
that there aren't long delays or lurches during scrolling is the
primary improvement.
......@@ -4832,10 +4842,10 @@ EndSection
One can tap the Alt_L key (Left "Alt" key) 3 times in a row to
signal x11vnc to refresh the screen to all viewers. Your
VNC-viewer may have its own screen refresh hot-key or button. See
also: [627]-fixscreen
also: [628]-fixscreen
* Some applications, notably OpenOffice, do XCopyArea scrolls in
weird ways that assume ancestor window clipping is taking place.
See the [628]-scr_skip option for ways to tweak this on a
See the [629]-scr_skip option for ways to tweak this on a
per-application basis.
* Selecting text while dragging the mouse may be slower, especially
if the Button-down event happens near the window's edge. This is
......@@ -4852,7 +4862,7 @@ EndSection
because it fails to detect scrolls in it. Sometimes clicking
inside the application window or selecting some text in it to
force the focus helps.
* When using the [629]-scale option there will be a quick CopyRect
* When using the [630]-scale option there will be a quick CopyRect
scroll, but it needs to be followed by a slower "cleanup" update.
This is because for a fixed finite screen resolution (e.g. 75 dpi)
scaling and copyrect-ing are not exactly independent. Scaling
......@@ -4865,7 +4875,7 @@ EndSection
If you find the -scrollcopyrect behavior too approximate or
distracting you can go back to the standard polling-only update method
with the [630]-noscrollcopyrect (or -noscr for short). If you find
with the [631]-noscrollcopyrect (or -noscr for short). If you find
some extremely bad and repeatable behavior for -scrollcopyrect please
report a bug.
......@@ -4890,9 +4900,9 @@ EndSection
that pixel data is needed again it does not have to be retransmitted
over the network.
As of Dec/2006 in the [631]0.9 development tarball there is an
As of Dec/2006 in the [632]0.9 development tarball there is an
experimental client-side caching implementation enabled by the
"[632]-ncache n" option. In fact, during the test period at least it
"[633]-ncache n" option. In fact, during the test period at least it
is on by default with n set to 12. To disable it use "-noncache".
It is a simple scheme where a (very large) lower portion of the
......@@ -4925,7 +4935,7 @@ EndSection
perhaps something else, maybe double buffering or other offscreen
rendering...).
The Enhanced TightVNC Viewer Unix viewer has a nice [633]-ycrop option
The Enhanced TightVNC Viewer Unix viewer has a nice [634]-ycrop option
to help hide the pixel cache area from view. It will turn on
automatically if the framebuffer appears to be very tall (height more
than twice the width), or you can supply the actual value for the
......@@ -4955,7 +4965,7 @@ EndSection
an additional factor of 2 in memory use.
However, even in the smallest usage mode with n equal 2 and
[634]-ncache_no_rootpixmap set (this requires only 2X additional
[635]-ncache_no_rootpixmap set (this requires only 2X additional
framebuffer memory) there is still a noticable improvement for many
activities, although it is not as dramatic as with, say n equal 12 and
rootpixmap (desktop background) caching enabled.
......@@ -4966,7 +4976,7 @@ EndSection
be tuned to use less, or the VNC community will extend the protocol to
allow caching and replaying of compressed blobs of data.
Another option to experiment with is "[635]-ncache_cr". By specifying
Another option to experiment with is "[636]-ncache_cr". By specifying
it, x11vnc will try to do smooth opaque window moves instead of its
wireframe. This can give a very nice effect (note: on Unix the realvnc
viewer seems to be smoother than the tightvnc viewer), but can lead to
......@@ -5032,23 +5042,23 @@ EndSection
this is because the cursor shape is often downloaded to the graphics
hardware (video card), but I could be mistaken.
A simple kludge is provided by the "[636]-cursor X" option that
A simple kludge is provided by the "[637]-cursor X" option that
changes the cursor when the mouse is on the root background (or any
window has the same cursor as the root background). Note that desktops
like GNOME or KDE often cover up the root background, so this won't
work for those cases. Also see the "[637]-cursor some" option for
work for those cases. Also see the "[638]-cursor some" option for
additional kludges.
Note that as of Aug/2004 on Solaris using the SUN_OVL overlay
extension and IRIX, x11vnc can show the correct mouse cursor when the
[638]-overlay option is supplied. See [639]this FAQ for more info.
[639]-overlay option is supplied. See [640]this FAQ for more info.
Also as of Dec/2004 XFIXES X extension support has been added to allow
exact extraction of the mouse cursor shape. XFIXES fixes the problem
of the cursor-shape being write-only: x11vnc can now query the X
server for the current shape and send it back to the connected
viewers. XFIXES is available on recent Linux Xorg based distros and
[640]Solaris 10.
[641]Solaris 10.
The only XFIXES issue is the handling of alpha channel transparency in
cursors. If a cursor has any translucency then in general it must be
......@@ -5056,7 +5066,7 @@ EndSection
situations where the cursor transparency can also handled exactly:
when the VNC Viewer requires the cursor shape be drawn into the VNC
framebuffer or if you apply a patch to your VNC Viewer to extract
hidden alpha channel data under 32bpp. [641]Details can be found here.
hidden alpha channel data under 32bpp. [642]Details can be found here.
Q-72: When using XFIXES cursorshape mode, some of the cursors look
......@@ -5089,17 +5099,17 @@ EndSection
for most cursor themes and you don't have to worry about it.
In case it still looks bad for your cursor theme, there are (of
course!) some tunable parameters. The "[642]-alphacut n" option lets
course!) some tunable parameters. The "[643]-alphacut n" option lets
you set the threshold "n" (between 0 and 255): cursor pixels with
alpha values below n will be considered completely transparent while
values equal to or above n will be completely opaque. The default is
240. The "[643]-alphafrac f" option tries to correct individual
240. The "[644]-alphafrac f" option tries to correct individual
cursors that did not fare well with the default -alphacut value: if a
cursor has less than fraction f (between 0.0 and 1.0) of its pixels
selected by the default -alphacut, the threshold is lowered until f of
its pixels are selected. The default fraction is 0.33.
Finally, there is an option [644]-alpharemove that is useful for
Finally, there is an option [645]-alpharemove that is useful for
themes where many cursors are light colored (e.g. "whiteglass").
XFIXES returns the cursor data with the RGB values pre-multiplied by
the alpha value. If the white cursors look too grey, specify
......@@ -5125,10 +5135,10 @@ EndSection
alpha channel data to libvncserver. However, this data will only be
used for VNC clients that do not support the CursorShapeUpdates VNC
extension (or have disabled it). It can be disabled for all clients
with the [645]-nocursorshape x11vnc option. In this case the cursor is
with the [646]-nocursorshape x11vnc option. In this case the cursor is
drawn, correctly blended with the background, into the VNC framebuffer
before being sent out to the client. So the alpha blending is done on
the x11vnc side. Use the [646]-noalphablend option to disable this
the x11vnc side. Use the [647]-noalphablend option to disable this
behavior (always approximate transparent cursors with opaque RGB
values).
......@@ -5152,7 +5162,7 @@ EndSection
example on how to change the Windows TightVNC viewer to achieve the
same thing (send me the patch if you get that working).
This patch is applied to the [647]Enhanced TightVNC Viewer (SSVNC)
This patch is applied to the [648]Enhanced TightVNC Viewer (SSVNC)
package we provide.
[Mouse Pointer]
......@@ -5160,9 +5170,9 @@ EndSection
Q-74: Why does the mouse arrow just stay in one corner in my
vncviewer, whereas my cursor (that does move) is just a dot?
This default takes advantage of a [648]tightvnc extension
This default takes advantage of a [649]tightvnc extension
(CursorShapeUpdates) that allows specifying a cursor image shape for
the local VNC viewer. You may disable it with the [649]-nocursor
the local VNC viewer. You may disable it with the [650]-nocursor
option to x11vnc if your viewer does not have this extension.
Note: as of Aug/2004 this should be fixed: the default for
......@@ -5176,17 +5186,17 @@ EndSection
clients (i.e. passive viewers can see the mouse cursor being moved
around by another viewer)?
Use the [650]-cursorpos option when starting x11vnc. A VNC viewer must
Use the [651]-cursorpos option when starting x11vnc. A VNC viewer must
support the Cursor Positions Updates for the user to see the mouse
motions (the TightVNC viewers support this). As of Aug/2004 -cursorpos
is the default. See also [651]-nocursorpos and [652]-nocursorshape.
is the default. See also [652]-nocursorpos and [653]-nocursorshape.
Q-76: Is it possible to swap the mouse buttons (e.g. left-handed
operation), or arbitrarily remap them? How about mapping button clicks
to keystrokes, e.g. to partially emulate Mouse wheel scrolling?
You can remap the mouse buttons via something like: [653]-buttonmap
You can remap the mouse buttons via something like: [654]-buttonmap
13-31 (or perhaps 12-21). Also, note that xmodmap(1) lets you directly
adjust the X server's button mappings, but in some circumstances it
might be more desirable to have x11vnc do it.
......@@ -5194,7 +5204,7 @@ EndSection
One user had an X server with only one mouse button(!) and was able to
map all of the VNC client mouse buttons to it via: -buttonmap 123-111.
Note that the [654]-debug_pointer option prints out much info for
Note that the [655]-debug_pointer option prints out much info for
every mouse/pointer event and is handy in solving problems.
To map mouse button clicks to keystrokes you can use the alternate
......@@ -5216,7 +5226,7 @@ EndSection
Exactly what keystroke "scrolling" events they should be bound to
depends on one's taste. If this method is too approximate, one could
consider not using [655]-buttonmap but rather configuring the X server
consider not using [656]-buttonmap but rather configuring the X server
to think it has a mouse with 5 buttons even though the physical mouse
does not. (e.g. 'Option "ZAxisMapping" "4 5"').
......@@ -5246,7 +5256,7 @@ EndSection
Q-77: How can I get my AltGr and Shift modifiers to work between
keyboards for different languages?
The option [656]-modtweak should help here. It is a mode that monitors
The option [657]-modtweak should help here. It is a mode that monitors
the state of the Shift and AltGr Modifiers and tries to deduce the
correct keycode to send, possibly by sending fake modifier key presses
and releases in addition to the actual keystroke.
......@@ -5255,16 +5265,16 @@ EndSection
to get the old behavior). This was done because it was noticed on
newer XFree86 setups even on bland "us" keyboards like "pc104 us"
XFree86 included a "ghost" key with both "<" and ">" it. This key does
not exist on the keyboard (see [657]this FAQ for more info). Without
not exist on the keyboard (see [658]this FAQ for more info). Without
-modtweak there was then an ambiguity in the reverse map keysym =>
keycode, making it so the "<" symbol could not be typed.
Also see the [658]FAQ about the -xkb option for a more powerful method
Also see the [659]FAQ about the -xkb option for a more powerful method
of modifier tweaking for use on X servers with the XKEYBOARD
extension.
When trying to resolve keyboard mapping problems, note that the
[659]-debug_keyboard option prints out much info for every keystroke
[660]-debug_keyboard option prints out much info for every keystroke
and so can be useful debugging things.
......@@ -5276,9 +5286,9 @@ EndSection
(e.g. pc105 in the XF86Config file when it should be something else,
say pc104).
Short Cut: Try the [660]-xkb or [661]-sloppy_keys options and see if
Short Cut: Try the [661]-xkb or [662]-sloppy_keys options and see if
that helps the situation. The discussion below is a bit outdated (e.g.
[662]-modtweak is now the default) but it is useful reference for
[663]-modtweak is now the default) but it is useful reference for
various tricks and so is kept.
......@@ -5321,17 +5331,17 @@ EndSection
-remap less-comma
These are convenient in that they do not modify the actual X server
settings. The former ([663]-modtweak) is a mode that monitors the
settings. The former ([664]-modtweak) is a mode that monitors the
state of the Shift and AltGr modifiers and tries to deduce the correct
keycode sequence to send. Since Jul/2004 -modtweak is now the default.
The latter ([664]-remap less-comma) is an immediate remapping of the
The latter ([665]-remap less-comma) is an immediate remapping of the
keysym less to the keysym comma when it comes in from a client (so
when Shift is down the comma press will yield "<").
See also the [665]FAQ about the -xkb option as a possible workaround
See also the [666]FAQ about the -xkb option as a possible workaround
using the XKEYBOARD extension.
Note that the [666]-debug_keyboard option prints out much info for
Note that the [667]-debug_keyboard option prints out much info for
every keystroke to aid debugging keyboard problems.
......@@ -5339,13 +5349,13 @@ EndSection
(i.e. an extra comma).
This is likely because you press "Shift" then "<" but then released
the Shift key before releasing the "<". Because of a [667]keymapping
the Shift key before releasing the "<". Because of a [668]keymapping
ambiguity the last event "< up" is interpreted as "," because that key
unshifted is the comma.
This should not happen in [668]-xkb mode, because it works hard to
This should not happen in [669]-xkb mode, because it works hard to
resolve the ambiguities. If you do not want to use -xkb, try the
option [669]-sloppy_keys to attempt a similar type of algorithm.
option [670]-sloppy_keys to attempt a similar type of algorithm.
Q-80: I'm using an "international" keyboard (e.g. German "de", or
......@@ -5369,7 +5379,7 @@ EndSection
In both cases no AltGr is sent to the VNC server, but we know AltGr is
needed on the physical international keyboard to type a "@".
This all worked fine with x11vnc running with the [670]-modtweak
This all worked fine with x11vnc running with the [671]-modtweak
option (it figures out how to adjust the Modifier keys (Shift or
AltGr) to get the "@"). However it fails under recent versions of
XFree86 (and the X.org fork). These run the XKEYBOARD extension by
......@@ -5386,7 +5396,7 @@ EndSection
* there is a new option -xkb to use the XKEYBOARD extension API to
do the Modifier key tweaking.
The [671]-xkb option seems to fix all of the missing keys: "@", "<",
The [672]-xkb option seems to fix all of the missing keys: "@", "<",
">", etc.: it is recommended that you try it if you have this sort of
problem. Let us know if there are any remaining problems (see the next
paragraph for some known problems). If you specify the -debug_keyboard
......@@ -5394,7 +5404,7 @@ EndSection
debugging output (send it along with any problems you report).
Update: as of Jun/2005 x11vnc will try to automatically enable
[672]-xkb if it appears that would be beneficial (e.g. if it sees any
[673]-xkb if it appears that would be beneficial (e.g. if it sees any
of "@", "<", ">", "[" and similar keys are mapped in a way that needs
the -xkb to access them). To disable this automatic check use -noxkb.
......@@ -5409,7 +5419,7 @@ EndSection
was attached to keycode 93 (no physical key generates this
keycode) while ISO_Level3_Shift was attached to keycode 113. The
keycode skipping option was used to disable the ghost key:
[673]-skip_keycodes 93
[674]-skip_keycodes 93
* In implementing -xkb we noticed that some characters were still
not getting through, e.g. "~" and "^". This is not really an
XKEYBOARD problem. What was happening was the VNC viewer was
......@@ -5427,16 +5437,16 @@ EndSection
What to do? In general the VNC protocol has not really solved this
problem: what should be done if the VNC viewer sends a keysym not
recognized by the VNC server side? Workarounds can possibly be
created using the [674]-remap x11vnc option:
created using the [675]-remap x11vnc option:
-remap asciitilde-dead_tilde,asciicircum-dead_circumflex
etc. Use -remap filename if the list is long. Please send us your
workarounds for this problem on your keyboard. Perhaps we can have
x11vnc adjust automatically at some point. Also see the
[675]-add_keysyms option in the next paragraph.
Update: for convenience "[676]-remap DEAD" does many of these
[676]-add_keysyms option in the next paragraph.
Update: for convenience "[677]-remap DEAD" does many of these
mappings at once.
* To complement the above workaround using the [677]-remap, an
option [678]-add_keysyms was added. This option instructs x11vnc
* To complement the above workaround using the [678]-remap, an
option [679]-add_keysyms was added. This option instructs x11vnc
to bind any unknown Keysyms coming in from VNC viewers to unused
Keycodes in the X server. This modifies the global state of the X
server. When x11vnc exits it removes the extra keymappings it
......@@ -5455,7 +5465,7 @@ EndSection
Short answer: disable key autorepeating by running the command "xset r
off" on the Xserver where x11vnc is run (restore via "xset r on") or
use the new (Jul/2004) [679]-norepeat x11vnc option. You will still
use the new (Jul/2004) [680]-norepeat x11vnc option. You will still
have autorepeating because that is taken care of on your VNC viewer
side.
......@@ -5479,7 +5489,7 @@ EndSection
off", does the problem go away?
The workaround is to manually apply "xset r off" and "xset r on" as
needed, or to use the [680]-norepeat (which has since Dec/2004 been
needed, or to use the [681]-norepeat (which has since Dec/2004 been
made the default). Note that with X server autorepeat turned off the
VNC viewer side of the connection will (nearly always) do its own
autorepeating so there is no big loss here, unless someone is also
......@@ -5490,7 +5500,7 @@ EndSection
keystrokes!!
Are you using x11vnc to log in to an X session via display manager?
(as described in [681]this FAQ) If so, x11vnc is starting before your
(as described in [682]this FAQ) If so, x11vnc is starting before your
session and it disables autorepeat when you connect, but then after
you log in your session startup (GNOME, KDE, ...) could be resetting
the autorepeat to be on. Or it could be something inside your desktop
......@@ -5514,7 +5524,7 @@ EndSection
machine where I run the VNC viewer does not. Is there a way I can map
a local unused key to send an AltGr? How about a Compose key as well?
Something like "[682]-remap Super_R-Mode_switch" x11vnc option may
Something like "[683]-remap Super_R-Mode_switch" x11vnc option may
work. Note that Super_R is the "Right Windoze(tm) Flaggie" key; you
may want to choose another. The -debug_keyboard option comes in handy
in finding keysym names (so does xev(1)).
......@@ -5537,7 +5547,7 @@ EndSection
Since xmodmap(1) modifies the X server mappings you may not want to do
this (because it affects local work on that machine). Something like
the [683]-remap Alt_L-Meta_L to x11vnc may be sufficient for ones
the [684]-remap Alt_L-Meta_L to x11vnc may be sufficient for ones
needs, and does not modify the X server environment. Note that you
cannot send Alt_L in this case, maybe -remap Super_L-Meta_L would be a
better choice if the Super_L key is typically unused in Unix.
......@@ -5557,7 +5567,7 @@ EndSection
and similar triple mappings (with two in the AltGr/Mode_switch group)
of a keysum to a single keycode.
Use the [684]-nomodtweak option as a workaround. You can also use
Use the [685]-nomodtweak option as a workaround. You can also use
xmodmap to correct these mappings in the server, e.g.:
xmodmap -e "keycode 47 = 3 numbersign"
......@@ -5571,7 +5581,7 @@ EndSection
This can be done directly in some X servers using AccessX and
Pointer_EnableKeys, but is a bit awkward. It may be more convenient to
have x11vnc do the remapping. This can be done via the [685]-remap
have x11vnc do the remapping. This can be done via the [686]-remap
option using the fake "keysyms" Button1, Button2, etc. as the "to"
keys (i.e. the ones after the "-")
......@@ -5580,7 +5590,7 @@ EndSection
button "paste" because (using XFree86/Xorg Emulate3Buttons) you have
to click both buttons on the touch pad at the same time. This
remapping:
[686]-remap Super_R-Button2
[687]-remap Super_R-Button2
maps the Super_R "flag" key press to the Button2 click, thereby making
X pasting a bit easier.
......@@ -5599,10 +5609,10 @@ EndSection
Caps_Lock in the viewer your local machine goes into the Caps_Lock on
state and sends keysym "A" say when you press "a". x11vnc will then
fake things up so that Shift is held down to generate "A". The
[687]-skip_lockkeys option should help to accomplish this. For finer
grain control use something like: "[688]-remap Caps_Lock-None".
[688]-skip_lockkeys option should help to accomplish this. For finer
grain control use something like: "[689]-remap Caps_Lock-None".
Also try the [689]-nomodtweak and [690]-capslock options.
Also try the [690]-nomodtweak and [691]-capslock options.
[Screen Related Issues and Features]
......@@ -5625,7 +5635,7 @@ EndSection
There may also be scaling viewers out there (e.g. TightVNC or UltraVNC
on Windows) that automatically shrink or expand the remote framebuffer
to fit the local display. Especially for hand-held devices. See also
[691]this FAQ on x11vnc scaling.
[692]this FAQ on x11vnc scaling.
Q-89: Does x11vnc support server-side framebuffer scaling? (E.g. to
......@@ -5633,7 +5643,7 @@ EndSection
As of Jun/2004 x11vnc provides basic server-side scaling. It is a
global scaling of the desktop, not a per-client setting. To enable it
use the "[692]-scale fraction" option. "fraction" can either be a
use the "[693]-scale fraction" option. "fraction" can either be a
floating point number (e.g. -scale 0.5) or the alternative m/n
fraction notation (e.g. -scale 3/4). Note that if fraction is greater
than one the display is magnified.
......@@ -5654,7 +5664,7 @@ EndSection
One can also use the ":nb" with an integer scale factor (say "-scale
2:nb") to use x11vnc as a screen magnifier for vision impaired
[693]applications. Since with integer scale factors the framebuffers
[694]applications. Since with integer scale factors the framebuffers
become huge and scaling operations time consuming, be sure to use
":nb" for the fastest response.
......@@ -5680,7 +5690,7 @@ EndSection
If one desires per-client scaling for something like 1:1 from a
workstation and 1:2 from a smaller device (e.g. handheld), currently
the only option is to run two (or more) x11vnc processes with
different scalings listening on separate ports ([694]-rfbport option,
different scalings listening on separate ports ([695]-rfbport option,
etc.).
Update: As of May/2006 x11vnc also supports the UltraVNC server-side
......@@ -5690,8 +5700,8 @@ EndSection
"-rfbversion 3.6" for this to be recognized by UltraVNC viewers.
BTW, whenever you run two or more x11vnc's on the same X display and
use the [695]GUI, then to avoid all of the x11vnc's simultaneously
answering the gui you will need to use something like [696]"-connect
use the [696]GUI, then to avoid all of the x11vnc's simultaneously
answering the gui you will need to use something like [697]"-connect
file1 -gui ..." with different connect files for each x11vnc you want
to control via the gui (or remote-control). The "-connect file1" usage
gives separate communication channels between a x11vnc proces and the
......@@ -5700,7 +5710,7 @@ EndSection
Update: As of Mar/2005 x11vnc now scales the mouse cursor with the
same scale factor as the screen. If you don't want that, use the
[697]"-scale_cursor frac" option to set the cursor scaling to a
[698]"-scale_cursor frac" option to set the cursor scaling to a
different factor (e.g. use "-scale_cursor 1" to keep the cursor at its
natural unscaled size).
......@@ -5722,17 +5732,17 @@ EndSection
screen is not rectangular (e.g. 1280x1024 and 1024x768 monitors joined
together), then there will be "non-existent" areas on the screen. The
X server will return "garbage" image data for these areas and so they
may be distracting to the viewer. The [698]-blackout x11vnc option
may be distracting to the viewer. The [699]-blackout x11vnc option
allows you to blacken-out rectangles by manually specifying their
WxH+X+Y geometries. If your system has the libXinerama library, the
[699]-xinerama x11vnc option can be used to have it automatically
[700]-xinerama x11vnc option can be used to have it automatically
determine the rectangles to be blackened out. (Note on 8bpp
PseudoColor displays the fill color may not be black). Update:
[700]-xinerama is now on by default.
[701]-xinerama is now on by default.
Some users have reported that the mouse does not behave properly for
their Xinerama display: i.e. the mouse cannot be moved to all regions
of the large display. If this happens try using the [701]-xwarppointer
of the large display. If this happens try using the [702]-xwarppointer
option. This instructs x11vnc to fake mouse pointer motions using the
XWarpPointer function instead of the XTestFakeMotionEvent XTEST
function. (This may be due to a bug in the X server for XTEST when
......@@ -5757,23 +5767,23 @@ EndSection
Note: if you are running on Solaris 8 or earlier you can easily hit up
against the maximum of 6 shm segments per process (for Xsun in this
case) from running multiple x11vnc processes. You should modify
/etc/system as mentioned in another [702]FAQ to increase the limit. It
is probably also a good idea to run with the [703]-onetile option in
/etc/system as mentioned in another [703]FAQ to increase the limit. It
is probably also a good idea to run with the [704]-onetile option in
this case (to limit each x11vnc to 3 shm segments), or even
[704]-noshm to use no shm segments.
[705]-noshm to use no shm segments.
Q-92: Can x11vnc show only a portion of the display? (E.g. for a
special purpose rfb application).
As of Mar/2005 x11vnc has the "[705]-clip WxH+X+Y" option to select a
As of Mar/2005 x11vnc has the "[706]-clip WxH+X+Y" option to select a
rectangle of width W, height H and offset (X, Y). Thus the VNC screen
will be the clipped sub-region of the display and be only WxH in size.
One user used -clip to split up a large [706]Xinerama screen into two
One user used -clip to split up a large [707]Xinerama screen into two
more managable smaller screens.
This also works to view a sub-region of a single application window if
the [707]-id or [708]-sid options are used. The offset is measured
the [708]-id or [709]-sid options are used. The offset is measured
from the upper left corner of the selected window.
......@@ -5782,7 +5792,7 @@ EndSection
crash.
As of Dec/2004 x11vnc supports XRANDR. You enable it with the
[709]-xrandr option to make x11vnc monitor XRANDR events and also trap
[710]-xrandr option to make x11vnc monitor XRANDR events and also trap
X server errors if the screen change occurred in the middle of an X
call like XGetImage. Once it traps the screen change it will create a
new framebuffer using the new screen.
......@@ -5792,9 +5802,9 @@ EndSection
then the viewer will automatically resize. Otherwise, the new
framebuffer is fit as best as possible into the original viewer size
(portions of the screen may be clipped, unused, etc). For these
viewers you can try the [710]-padgeom option to make the region big
viewers you can try the [711]-padgeom option to make the region big
enough to hold all resizes and rotations. We have fixed this problem
for the TightVNC Viewer on Unix: [711]enhanced_tightvnc_viewer
for the TightVNC Viewer on Unix: [712]enhanced_tightvnc_viewer
If you specify "-xrandr newfbsize" then vnc viewers that do not
support NewFBSize will be disconnected before the resize. If you
......@@ -5806,7 +5816,7 @@ EndSection
reflect the screen that the VNC viewers see? (e.g. for a handheld
whose screen is rotated 90 degrees).
As of Jul/2006 there is the [712]-rotate option allow this. E.g's:
As of Jul/2006 there is the [713]-rotate option allow this. E.g's:
"-rotate +90", "-rotate -90", "-rotate x", etc.
......@@ -5871,13 +5881,13 @@ EndSection
This may be a bug in kdesktop_lock. For now the only workaround is to
disable the screensaver. You can try using another one such as
straight xscreensaver (see the instructions [713]here for how to
straight xscreensaver (see the instructions [714]here for how to
disable kdesktop_lock). If you have more info on this or see it
outside of KDE please let us know.
Update: It appears this is due to kdesktop_lock enabling the screen
saver when the Monitor is in DPMS low-power state (e.g. standby,
suspend, or off). In Nov/2006 the x11vnc [714]-nodpms option was added
suspend, or off). In Nov/2006 the x11vnc [715]-nodpms option was added
as a workaround. Normally it is a good thing that the monitor powers
down (since x11vnc can still poll the framebuffer in this state), but
if you experience the kdesktop_lock problem you can specify the
......@@ -5893,15 +5903,19 @@ EndSection
This appears to be because the 3D OpenGL/GLX hardware screen updates
do not get reported via the XDAMAGE mechanism. So this is a bug in
[715]beryl or XDAMAGE/Xorg or the (possibly 3rd party) video card
[716]beryl or XDAMAGE/Xorg or the (possibly 3rd party) video card
driver.
As a workaround apply the [716]-noxdamage option. As of Feb/2007
As a workaround apply the [717]-noxdamage option. As of Feb/2007
x11vnc will try to autodetect the problem and disable XDAMAGE if is
appears to be missing a lot of updates. But if you know you are using
beryl you might as well always supply -noxdamage. Thanks to [717]this
beryl you might as well always supply -noxdamage. Thanks to [718]this
user who reported the problem and discovered the workaround.
A developer for [719]MiniMyth reports that the 'alphapulse' tag of the
theme G.A.N.T. can also cause problems, and should be avoided when
using VNC.
Please report a bug or complaint to Beryl and/or Xorg about this:
running x11vnc with -noxdamage disables a nice improvement in
responsiveness (especially for typing) and also leads to unnecessary
......@@ -5918,9 +5932,9 @@ EndSection
* Fullscreen mode
The way VMWare does Fullscreen mode on Linux is to display the Guest
desktop in a separate Virtual Console (e.g. VC 8) (see [718]this FAQ
desktop in a separate Virtual Console (e.g. VC 8) (see [720]this FAQ
on VC's for background). Unfortunately, this Fullscreen VC is not an X
server. So x11vnc cannot access it (however, [719]see this discussion
server. So x11vnc cannot access it (however, [721]see this discussion
of -rawfb for a possible workaround). x11vnc works fine with "Normal X
application window" and "Quick-Switch mode" because these use X.
......@@ -5941,13 +5955,13 @@ EndSection
improve response. One can also cut the display depth (e.g. to 16bpp)
in this 2nd X session to improve video performance. This 2nd X session
emulates Fullscreen mode to some degree and can be viewed via x11vnc
as long as the VMWare X session [720]is in the active VC.
as long as the VMWare X session [722]is in the active VC.
Also note that with a little bit of playing with "xwininfo -all
-children" output one can extract the (non-toplevel) windowid of the
of the Guest desktop only when VMWare is running as a normal X
application. Then one can export just the guest desktop (i.e. without
the VMWare menu buttons) by use of the [721]-id windowid option. The
the VMWare menu buttons) by use of the [723]-id windowid option. The
caveats are the X session VMWare is in must be in the active VC and
the window must be fully visible, so this mode is not terribly
convenient, but could be useful in some circumstances (e.g. running
......@@ -5963,10 +5977,10 @@ EndSection
controlled) via VNC with x11vnc?
As of Apr/2005 there is support for this. Two options were added:
"[722]-rawfb string" (to indicate the raw framembuffer device, file,
etc. and its parameters) and "[723]-pipeinput command" (to provide an
"[724]-rawfb string" (to indicate the raw framembuffer device, file,
etc. and its parameters) and "[725]-pipeinput command" (to provide an
external program that will inject or otherwise process mouse and
keystroke input). Some useful [724]-pipeinput schemes, VID, CONSOLE,
keystroke input). Some useful [726]-pipeinput schemes, VID, CONSOLE,
and UINPUT, have since been built into x11vnc for convenience.
This non-X mode for x11vnc is somewhat experimental because it is so
......@@ -6004,9 +6018,9 @@ EndSection
access method). Only use file if map isn't working. BTW, "mmap" is an
alias for "map" and if you do not supply a type and the file exists,
map is assumed (see the -help output and below for some exceptions to
this). The "snap:" setting applies the [725]-snapfb option with
this). The "snap:" setting applies the [727]-snapfb option with
"file:" type reading (this is useful for exporting webcams or TV tuner
video; see [726]the next FAQ for more info).
video; see [728]the next FAQ for more info).
Also, if the string is of the form "setup:cmd" then cmd is run and the
first line of its output retrieved and used as the rawfb string. This
......@@ -6050,7 +6064,7 @@ EndSection
screen to either shm or a mapped file. The format of these is XWD and
so the initial header should be skipped. BTW, since XWD is not
strictly RGB the view will only be approximate, but usable. Of course
for the case of Xvfb x11vnc can poll it much better via the [727]X
for the case of Xvfb x11vnc can poll it much better via the [729]X
API, but you get the idea.
By default in -rawfb mode x11vnc will actually close any X display it
......@@ -6079,13 +6093,13 @@ EndSection
tty1-tty6), or X graphical display (usually starting at tty7). In
addition to the text console other graphical ones may be viewed and
interacted with as well, e.g. DirectFB or SVGAlib apps, VMWare non-X
fullscreen, or [728]Qt-embedded apps (PDAs/Handhelds). By default the
fullscreen, or [730]Qt-embedded apps (PDAs/Handhelds). By default the
pipeinput mechanisms UINPUT and CONSOLE (keystrokes only) are
automatically attempted in this mode under "-rawfb console".
The Video4Linux Capture device, /dev/video0, etc is either a Webcam or
a TV capture device and needs to have its driver enabled in the
kernel. See [729]this FAQ for details. If specified via "-rawfb Video"
kernel. See [731]this FAQ for details. If specified via "-rawfb Video"
then the pipeinput method "VID" is applied (it lets you change video
parameters dynamically via keystrokes).
......@@ -6093,10 +6107,10 @@ EndSection
also useful in testing.
All of the above [730]-rawfb options are just for viewing the raw
All of the above [732]-rawfb options are just for viewing the raw
framebuffer (although some of the aliases do imply keystroke and mouse
pipeinput methods). That may be enough for certain applications of
this feature (e.g. suppose a [731]video camera mapped its framebuffer
this feature (e.g. suppose a [733]video camera mapped its framebuffer
into memory and you just wanted to look at it via VNC).
To handle the pointer and keyboard input from the viewer users the
"-pipeinput cmd" option was added to indicate a helper program to
......@@ -6134,7 +6148,7 @@ EndSection
keystrokes into the Linux console (e.g. the virtual consoles:
/dev/tty1, /dev/tty2, etc) in x11vnc/misc/vcinject.pl. It is based on
the vncterm/LinuxVNC.c program also in the libvncserver CVS. So to
view and interact with VC #2 (assuming it is the [732]active VC) one
view and interact with VC #2 (assuming it is the [734]active VC) one
can run something like:
x11vnc -rawfb map:/dev/fb0@1024x768x16 -pipeinput './vcinject.pl 2'
......@@ -6189,7 +6203,7 @@ EndSection
better to use the more accurate and faster LinuxVNC program. The
advantage x11vnc -rawfb might have is that it can allow interaction
with a non-text application, e.g. one based on SVGAlib or
[733]Qt-embedded Also, for example the [734]VMWare Fullscreen mode is
[735]Qt-embedded Also, for example the [736]VMWare Fullscreen mode is
actually viewable under -rawfb and can be interacted with if uinput is
enabled.
......@@ -6209,9 +6223,9 @@ EndSection
Q-102: Can I export via VNC a Webcam or TV tuner framebuffer using
x11vnc?
Yes, this is possible to some degree with the [735]-rawfb option.
Yes, this is possible to some degree with the [737]-rawfb option.
There is no X11 involved: snapshots from the video capture device are
used for the screen image data. See the [736]previous FAQ on -rawfb
used for the screen image data. See the [738]previous FAQ on -rawfb
for background. For best results, use x11vnc version 0.8.1 or later.
Roughly, one would do something like this:
......@@ -6223,7 +6237,7 @@ EndSection
snapshot to a file that you point -rawfb to; ask me if it is not clear
what to do).
The "snap:" enforces [737]-snapfb mode which appears to be necessary.
The "snap:" enforces [739]-snapfb mode which appears to be necessary.
The read pointer for video capture devices cannot be repositioned
(which would be needed for scanline polling), but you can read a full
frame of data from the device.
......@@ -6245,7 +6259,7 @@ EndSection
Many video4linux drivers tend to set the framebuffer to be 24bpp (as
opposed to 32bpp). Since this can cause problems with VNC viewers,
etc, the [738]-24to32 option will be automatically imposed when in
etc, the [740]-24to32 option will be automatically imposed when in
24bpp.
Note that by its very nature, video capture involves rapid change in
......@@ -6253,7 +6267,7 @@ EndSection
wavering in brightness is always happening. This can lead to much
network bandwidth consumption for the VNC traffic and also local CPU
and I/O resource usage. You may want to experiment with "dialing down"
the framerate via the [739]-wait, [740]-slow_fb, or [741]-defer
the framerate via the [741]-wait, [742]-slow_fb, or [743]-defer
options. Decreasing the window size and bpp also helps.
......@@ -6342,7 +6356,7 @@ EndSection
format to HI240, RGB565, RGB24, RGB32, RGB555, and
GREY respectively. See -rawfb video for details.
See also the [742]-freqtab option to supply your own xawtv channel to
See also the [744]-freqtab option to supply your own xawtv channel to
frequency mappings for your country (only ntsc-cable-us is built into
x11vnc).
......@@ -6351,7 +6365,7 @@ EndSection
running on my handheld or PC using the Linux console framebuffer (i.e.
not X11)?
Yes, the basic method for this is the [743]-rawfb scheme where the
Yes, the basic method for this is the [745]-rawfb scheme where the
Linux console framebuffer (usually /dev/fb0) is polled and the uinput
driver is used to inject keystrokes and mouse input. Often you will
just have to type:
......@@ -6364,7 +6378,7 @@ EndSection
x11vnc -rawfb /dev/fb0@640x480x16
Also, to force usage of the uinput injection method use "-pipeinput
UINPUT". See the [744]-pipeinput description for tunable parameters,
UINPUT". See the [746]-pipeinput description for tunable parameters,
etc.
One problem with the x11vnc uinput scheme is that it cannot guess the
......@@ -6380,7 +6394,7 @@ EndSection
Even with the correct acceleration setting there is stil some drift
(probably because of the mouse threshold where the acceleration kicks
in) and so x11vnc needs to reposition the cursor from 0,0 about 5
times a second. See the [745]-pipeinput UINPUT option for tuning
times a second. See the [747]-pipeinput UINPUT option for tuning
parameters that can be set (there are some experimental thresh=N
tuning parameters as well)
......@@ -6414,7 +6428,7 @@ EndSection
Q-104: Now that non-X11 devices can be exported via VNC using x11vnc,
can I build it with no dependencies on X11 header files and libraries?
Yes, as of Jul/2006 x11vnc enables building for [746]-rawfb only
Yes, as of Jul/2006 x11vnc enables building for [748]-rawfb only
support. Just do something like when building:
./configure --without-x (plus any other flags)
make
......@@ -6430,11 +6444,11 @@ EndSection
Yes, since Nov/2006 in the development tree (x11vnc-0.8.4 tarball)
there is support for native Mac OS X Aqua/Quartz displays using the
[747]-rawfb mechanism described above. The mouse and keyboard input is
[749]-rawfb mechanism described above. The mouse and keyboard input is
acheived via Mac OS X API's.
So you can use x11vnc as an alternative to [748]OSXvnc (aka Vine
Server), or [749]Apple Remote Desktop (ARD). Perhaps there is some
So you can use x11vnc as an alternative to [750]OSXvnc (aka Vine
Server), or [751]Apple Remote Desktop (ARD). Perhaps there is some
x11vnc feature you'd like to use on Mac OS X, etc. For a number of
activities (e.g. window drags) it seems to be faster than OSXvnc.
......@@ -6444,7 +6458,7 @@ EndSection
(XDarwin) running on Mac OS X (people often install this software to
display remote X11 apps on their Mac OS X system, or use some old
favorites locally such as xterm). However in this case x11vnc will
only work reasonably in single window [750]-id windowid mode (and the
only work reasonably in single window [752]-id windowid mode (and the
window may need to have mouse focus).
If you do not have the DISPLAY env. variable set, x11vnc will assume
......@@ -6458,9 +6472,9 @@ EndSection
./configure --without-x
make
Win2VNC/x2vnc: One handy use is to use the [751]-nofb mode to
Win2VNC/x2vnc: One handy use is to use the [753]-nofb mode to
redirect mouse and keyboard input to a nearby Mac (i.e. one to the
side of your desk) via [752]x2vnc or Win2VNC. See [753]this FAQ for
side of your desk) via [754]x2vnc or Win2VNC. See [755]this FAQ for
more info.
Options: Here are the Mac OS X specific x11vnc options:
......@@ -6534,13 +6548,13 @@ rm -f $tmp
performance for the case of a large number of simultaneous VNC viewers
(e.g. classroom broadcasting or a large demo)?
Yes, as of Feb/2007 there is the "[754]-reflect host:N" option to
Yes, as of Feb/2007 there is the "[756]-reflect host:N" option to
connect to the VNC server "host:N" (either another x11vnc or any other
VNC server) and re-export it. VNC viewers then connect to the
x11vnc(s) running -reflect.
The -reflect option is the same as: "-rawfb vnc:host:N". See the
[755]-rawfb description under "VNC HOST" for more details.
[757]-rawfb description under "VNC HOST" for more details.
You can replace "host:N" with "listen" or "listen:port" for reverse
connections.
......@@ -6601,20 +6615,20 @@ rm -f $tmp
re-exports via VNC to its clients C). However, CopyRect and
CursorShape encodings are preserved in the reflection and that helps.
Dragging windows with the mouse can be a problem (especially if S is
not doing wireframing somehow, consider [756]-nodragging if the
not doing wireframing somehow, consider [758]-nodragging if the
problem is severe) For a really fast reflector/repeater it would have
to be implemented from scratch with performance in mind. See these
other projects:
[757]http://sourceforge.net/projects/vnc-reflector/,
[758]http://www.tightvnc.com/projector/ (closed source?),
[759]http://www.ultravnc.com/addons/repeater.html (seems to be a NAT g
[759]http://sourceforge.net/projects/vnc-reflector/,
[760]http://www.tightvnc.com/projector/ (closed source?),
[761]http://www.ultravnc.com/addons/repeater.html (seems to be a NAT g
ateway and not a broadcaster?)
Automation via Reverse Connections: Instead of having the R's
connect directly to S and then the C's connect directly to the R they
should use, some convenience can be achieved by using reverse
connections (the x11vnc "[760]"-connect host1,host2,..." option).
connections (the x11vnc "[762]"-connect host1,host2,..." option).
Suppose all the clients "C" are started up in Listen mode:
client1> vncviewer -listen
client2> vncviewer -listen
......@@ -6649,11 +6663,11 @@ ateway and not a broadcaster?)
As of Jan/2004 x11vnc supports the "CutText" part of the rfb protocol.
Furthermore, x11vnc is able to hold the PRIMARY and CLIPBOARD
selection (Xvnc does not seem to do this). If you don't want the
Clipboard/Selection exchanged use the [761]-nosel option. If you don't
Clipboard/Selection exchanged use the [763]-nosel option. If you don't
want the PRIMARY selection to be polled for changes use the
[762]-noprimary option. (with a similar thing for CLIPBOARD). You can
also fine-tune it a bit with the [763]-seldir dir option and also
[764]-input.
[764]-noprimary option. (with a similar thing for CLIPBOARD). You can
also fine-tune it a bit with the [765]-seldir dir option and also
[766]-input.
You may need to watch out for desktop utilities such as KDE's
"Klipper" that do odd things with the selection, clipboard, and
......@@ -6665,7 +6679,7 @@ ateway and not a broadcaster?)
Yes, it is possible with a number of tools that record VNC and
transform it to swf format or others. One such popular tool is
[765]pyvnc2swf. There are a number of [766]tutorials on how to do
[767]pyvnc2swf. There are a number of [768]tutorials on how to do
this. Another option is to use the vnc2mpg that comes in the
LibVNCServer package.
An important thing to remember when doing this is that tuning
......@@ -6681,7 +6695,7 @@ ateway and not a broadcaster?)
do work to some degree under Wine on Linux).
TightVNC file transfer is off by default, if you want to enable it use
the [767]-nofilexfer option.
the [769]-nofilexfer option.
UltraVNC file transfer is off by default, to enable it use something
like "-rfbversion 3.6 -permitfiletransfer"
......@@ -6715,7 +6729,7 @@ ateway and not a broadcaster?)
these extensions you will need to supply this option to x11vnc:
-rfbversion 3.6
Or use [768]-ultrafilexfer which is an alias for the above option and
Or use [770]-ultrafilexfer which is an alias for the above option and
"-permitfiletransfer". UltraVNC evidently treats any other RFB version
number as non-UltraVNC.
......@@ -6727,21 +6741,21 @@ ateway and not a broadcaster?)
* 1/n Server Scaling
* rfbEncodingUltra compression encoding
To disable SingleWindow and ServerInput use [769]-noultraext (the
To disable SingleWindow and ServerInput use [771]-noultraext (the
others are managed by LibVNCServer). See this option too:
[770]-noserverdpms.
[772]-noserverdpms.
Q-111: Can x11vnc emulate UltraVNC's Single Click helpdesk mode? I.e.
something very simple for a naive user to initiate a reverse vnc
connection from their desktop to a helpdesk operator's VNC Viewer.
Yes, UltraVNC's [771]Single Click (SC) mode can be emulated reasonably
Yes, UltraVNC's [773]Single Click (SC) mode can be emulated reasonably
well on Unix.
We use the term "helpdesk" below, but it could be any sort of remote
assistance you want to set up, e.g. something for unix-using friends
or family to use. This includes [772]Mac OS X.
or family to use. This includes [774]Mac OS X.
Assume you create a helpdesk directory "hd" on your website:
http://www.mysite.com/hd
......@@ -6844,9 +6858,9 @@ fi
SSL Encrypted Helpdesk Connections: Currently x11vnc does not support
reverse connections in SSL [773]-ssl mode. This may change in a future
reverse connections in SSL [775]-ssl mode. This may change in a future
release, until then you would need to cook up something with
[774]STUNNEL.
[776]STUNNEL.
Update: as of Apr/2007 x11vnc supports reverse connections in SSL.
Recipe below will be updated (TBD), basically you just add "-ssl SAVE"
......@@ -7002,7 +7016,7 @@ rypto.a -lwrap
You will have to use an external network redirection for this.
Filesystem mounting is not part of the VNC protocol.
We show a simple [775]Samba example here.
We show a simple [777]Samba example here.
First you will need a tunnel to redirect the SMB requests from the
remote machine to the one you sitting at. We use an ssh tunnel:
......@@ -7039,7 +7053,7 @@ d,ip=127.0.0.1,port=1139
far-away> smbumount /home/fred/smb-haystack-pub
At some point we hope to fold some automation for SMB ssh redir setup
into the [776]Enhanced TightVNC Viewer (SSVNC) package we provide (as
into the [778]Enhanced TightVNC Viewer (SSVNC) package we provide (as
of Sep 2006 it is there for testing).
......@@ -7049,7 +7063,7 @@ d,ip=127.0.0.1,port=1139
You will have to use an external network redirection for this.
Printing is not part of the VNC protocol.
We show a simple Unix to Unix [777]CUPS example here. Non-CUPS port
We show a simple Unix to Unix [779]CUPS example here. Non-CUPS port
redirections (e.g. LPD) should also be possible, but may be a bit more
tricky. If you are viewing on Windows SMB and don't have a local cups
server it may be trickier still (see below).
......@@ -7121,7 +7135,7 @@ d,ip=127.0.0.1,port=1139
"localhost".
At some point we hope to fold some automation for CUPS ssh redir setup
into the [778]Enhanced TightVNC Viewer (SSVNC) package we provide (as
into the [780]Enhanced TightVNC Viewer (SSVNC) package we provide (as
of Sep 2006 it is there for testing).
......@@ -7222,7 +7236,7 @@ or:
the applications will fail to run because LD_PRELOAD will point to
libraries of the wrong wordsize.
* At some point we hope to fold some automation for esd or artsd ssh
redir setup into the [779]Enhanced TightVNC Viewer (SSVNC) package
redir setup into the [781]Enhanced TightVNC Viewer (SSVNC) package
we provide (as of Sep/2006 it is there for testing).
......@@ -7234,9 +7248,9 @@ or:
in Solaris, see Xserver(1) for how to turn it on via +kb), and so you
won't hear them if the extension is not present.
If you don't want to hear the beeps use the [780]-nobell option. If
If you don't want to hear the beeps use the [782]-nobell option. If
you want to hear the audio from the remote applications, consider
trying a [781]redirector such as esd.
trying a [783]redirector such as esd.
......@@ -7322,8 +7336,8 @@ References
67. http://www.karlrunge.com/x11vnc/index.html#faq-ssl-tunnel-int
68. http://www.karlrunge.com/x11vnc/ssvnc.html
69. http://sourceforge.net/projects/libvncserver/
70. http://sourceforge.net/project/showfiles.php?group_id=32584&package_id=119006&release_id=483129
71. http://sourceforge.net/project/shownotes.php?release_id=483129&group_id=32584
70. http://sourceforge.net/project/showfiles.php?group_id=32584&package_id=119006&release_id=502277
71. http://sourceforge.net/project/shownotes.php?group_id=32584&release_id=502277
72. http://www.karlrunge.com/x11vnc/x11vnc-0.9.1.tar.gz
73. http://www.karlrunge.com/x11vnc/index.html#faq-binaries
74. http://www.tightvnc.com/download.html
......@@ -7860,180 +7874,182 @@ References
605. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xd_mem
606. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noxdamage
607. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noxdamage
608. http://www.karlrunge.com/x11vnc/index.html#faq-beryl
609. http://www.karlrunge.com/x11vnc/index.html#fb_read_slow
610. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pointer_mode
608. http://linpvr.org/minimyth/
609. http://www.karlrunge.com/x11vnc/index.html#faq-beryl
610. http://www.karlrunge.com/x11vnc/index.html#fb_read_slow
611. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pointer_mode
612. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nodragging
613. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pointer_mode
614. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-threads
615. http://www.karlrunge.com/x11vnc/index.html#faq-wireframe
616. http://www.karlrunge.com/x11vnc/index.html#faq-scrollcopyrect
617. http://www.karlrunge.com/x11vnc/index.html#faq-pointer-mode
618. http://www.karlrunge.com/x11vnc/index.html#fb_read_slow
619. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wireframe
612. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pointer_mode
613. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nodragging
614. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pointer_mode
615. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-threads
616. http://www.karlrunge.com/x11vnc/index.html#faq-wireframe
617. http://www.karlrunge.com/x11vnc/index.html#faq-scrollcopyrect
618. http://www.karlrunge.com/x11vnc/index.html#faq-pointer-mode
619. http://www.karlrunge.com/x11vnc/index.html#fb_read_slow
620. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wireframe
621. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wireframe
622. http://www.karlrunge.com/x11vnc/index.html#fb_read_slow
623. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scrollcopyrect
624. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wireframe
625. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wirecopyrect
626. http://www.karlrunge.com/x11vnc/index.html#faq-wireframe
627. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-fixscreen
628. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scr_skip
629. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scale
630. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scrollcopyrect
631. http://www.karlrunge.com/x11vnc/index.html#beta-test
632. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ncache
633. http://www.karlrunge.com/x11vnc/ssvnc.html#ycrop
634. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ncache_no_rootpixmap
635. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ncache_cr
636. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-cursor
622. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wireframe
623. http://www.karlrunge.com/x11vnc/index.html#fb_read_slow
624. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scrollcopyrect
625. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wireframe
626. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wirecopyrect
627. http://www.karlrunge.com/x11vnc/index.html#faq-wireframe
628. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-fixscreen
629. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scr_skip
630. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scale
631. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scrollcopyrect
632. http://www.karlrunge.com/x11vnc/index.html#beta-test
633. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ncache
634. http://www.karlrunge.com/x11vnc/ssvnc.html#ycrop
635. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ncache_no_rootpixmap
636. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ncache_cr
637. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-cursor
638. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-overlay
639. http://www.karlrunge.com/x11vnc/index.html#the-overlay-mode
640. http://www.karlrunge.com/x11vnc/index.html#solaris10-build
641. http://www.karlrunge.com/x11vnc/index.html#faq-xfixes-alpha-hacks
642. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-alphacut
643. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-alphafrac
644. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-alpharemove
645. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nocursorshape
646. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noalphablend
647. http://www.karlrunge.com/x11vnc/ssvnc.html
648. http://www.tightvnc.com/
649. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nocursor
650. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-cursorpos
651. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nocursorpos
652. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nocursorshape
653. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-buttonmap
654. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-debug_pointer
655. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-buttonmap
656. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-modtweak
657. http://www.karlrunge.com/x11vnc/index.html#faq-greaterless
658. http://www.karlrunge.com/x11vnc/index.html#faq-xkbmodtweak
659. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-debug_keyboard
660. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xkb
661. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-sloppy_keys
662. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-modtweak
638. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-cursor
639. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-overlay
640. http://www.karlrunge.com/x11vnc/index.html#the-overlay-mode
641. http://www.karlrunge.com/x11vnc/index.html#solaris10-build
642. http://www.karlrunge.com/x11vnc/index.html#faq-xfixes-alpha-hacks
643. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-alphacut
644. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-alphafrac
645. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-alpharemove
646. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nocursorshape
647. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noalphablend
648. http://www.karlrunge.com/x11vnc/ssvnc.html
649. http://www.tightvnc.com/
650. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nocursor
651. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-cursorpos
652. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nocursorpos
653. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nocursorshape
654. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-buttonmap
655. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-debug_pointer
656. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-buttonmap
657. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-modtweak
658. http://www.karlrunge.com/x11vnc/index.html#faq-greaterless
659. http://www.karlrunge.com/x11vnc/index.html#faq-xkbmodtweak
660. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-debug_keyboard
661. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xkb
662. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-sloppy_keys
663. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-modtweak
664. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
665. http://www.karlrunge.com/x11vnc/index.html#faq-xkbmodtweak
666. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-debug_keyboard
667. http://www.karlrunge.com/x11vnc/index.html#faq-greaterless
668. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xkb
669. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-sloppy_keys
670. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-modtweak
671. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xkb
664. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-modtweak
665. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
666. http://www.karlrunge.com/x11vnc/index.html#faq-xkbmodtweak
667. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-debug_keyboard
668. http://www.karlrunge.com/x11vnc/index.html#faq-greaterless
669. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xkb
670. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-sloppy_keys
671. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-modtweak
672. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xkb
673. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-skip_keycodes
674. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
675. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-add_keysyms
676. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
673. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xkb
674. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-skip_keycodes
675. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
676. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-add_keysyms
677. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
678. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-add_keysyms
679. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-norepeat
678. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
679. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-add_keysyms
680. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-norepeat
681. http://www.karlrunge.com/x11vnc/index.html#faq-display-manager
682. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
681. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-norepeat
682. http://www.karlrunge.com/x11vnc/index.html#faq-display-manager
683. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
684. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nomodtweak
685. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
684. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
685. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nomodtweak
686. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
687. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-skip_lockkeys
688. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
689. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nomodtweak
690. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-capslock
691. http://www.karlrunge.com/x11vnc/index.html#faq-scaling
692. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scale
693. http://www.cus.cam.ac.uk/~ssb22/source/vnc-magnification.html
694. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rfbport
695. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-gui
696. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-connect
697. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scale_cursor
698. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-blackout
699. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xinerama
687. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
688. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-skip_lockkeys
689. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remap
690. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nomodtweak
691. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-capslock
692. http://www.karlrunge.com/x11vnc/index.html#faq-scaling
693. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scale
694. http://www.cus.cam.ac.uk/~ssb22/source/vnc-magnification.html
695. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rfbport
696. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-gui
697. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-connect
698. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-scale_cursor
699. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-blackout
700. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xinerama
701. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xwarppointer
702. http://www.karlrunge.com/x11vnc/index.html#faq-solshm
703. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-onetile
704. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noshm
705. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-clip
706. http://www.karlrunge.com/x11vnc/index.html#faq-xinerama
707. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id
701. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xinerama
702. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xwarppointer
703. http://www.karlrunge.com/x11vnc/index.html#faq-solshm
704. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-onetile
705. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noshm
706. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-clip
707. http://www.karlrunge.com/x11vnc/index.html#faq-xinerama
708. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id
709. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xrandr
710. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-padgeom
711. http://www.karlrunge.com/x11vnc/ssvnc.html
712. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rotate
713. http://www.jwz.org/xscreensaver/man1.html
714. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nodpms
715. http://www.beryl-project.org/
716. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noxdamage
717. http://www.dslinux.org/blogs/pepsiman/?p=73
718. http://www.karlrunge.com/x11vnc/index.html#faq-linuxvc
719. http://www.karlrunge.com/x11vnc/index.html#faq-rawfb
709. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id
710. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xrandr
711. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-padgeom
712. http://www.karlrunge.com/x11vnc/ssvnc.html
713. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rotate
714. http://www.jwz.org/xscreensaver/man1.html
715. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nodpms
716. http://www.beryl-project.org/
717. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noxdamage
718. http://www.dslinux.org/blogs/pepsiman/?p=73
719. http://linpvr.org/minimyth/
720. http://www.karlrunge.com/x11vnc/index.html#faq-linuxvc
721. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id
722. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
723. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput
724. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput
725. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-snapfb
726. http://www.karlrunge.com/x11vnc/index.html#faq-video
727. http://www.karlrunge.com/x11vnc/index.html#faq-xvfb
728. http://www.karlrunge.com/x11vnc/index.html#faq-qt-embedded
729. http://www.karlrunge.com/x11vnc/index.html#faq-video
730. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
721. http://www.karlrunge.com/x11vnc/index.html#faq-rawfb
722. http://www.karlrunge.com/x11vnc/index.html#faq-linuxvc
723. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id
724. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
725. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput
726. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput
727. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-snapfb
728. http://www.karlrunge.com/x11vnc/index.html#faq-video
729. http://www.karlrunge.com/x11vnc/index.html#faq-xvfb
730. http://www.karlrunge.com/x11vnc/index.html#faq-qt-embedded
731. http://www.karlrunge.com/x11vnc/index.html#faq-video
732. http://www.karlrunge.com/x11vnc/index.html#faq-linuxvc
733. http://www.karlrunge.com/x11vnc/index.html#faq-qt-embedded
734. http://www.karlrunge.com/x11vnc/index.html#faq-vmware
735. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
736. http://www.karlrunge.com/x11vnc/index.html#faq-rawfb
737. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-snapfb
738. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-24to32
739. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wait
740. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-slow_fb
741. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-defer
742. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-freqtab
743. http://www.karlrunge.com/x11vnc/index.html#faq-rawfb
744. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput
745. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput
746. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
747. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
748. http://www.redstonesoftware.com/vnc.html
749. http://www.apple.com/remotedesktop/
750. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id
751. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id
752. http://fredrik.hubbe.net/x2vnc.html
753. http://www.karlrunge.com/x11vnc/index.html#faq-win2vnc
754. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-reflect
755. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
756. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nodragging
757. http://sourceforge.net/projects/vnc-reflector/
758. http://www.tightvnc.com/projector/
759. http://www.ultravnc.com/addons/repeater.html
760. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-connect
761. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nosel
762. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noprimary
763. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-seldir
764. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-input
765. http://www.unixuser.org/~euske/vnc2swf/
766. http://wolphination.com/linux/2006/06/30/how-to-record-videos-of-your-desktop/
767. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nofilexfer
768. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ultrafilexfer
769. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noultraext
770. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noserverdpms
771. http://www.uvnc.com/addons/singleclick.html
772. http://www.karlrunge.com/x11vnc/index.html#faq-macosx
773. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ssl
774. http://stunnel.mirt.net/
775. http://www.samba.org/
776. http://www.karlrunge.com/x11vnc/ssvnc.html
777. http://www.cups.org/
732. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
733. http://www.karlrunge.com/x11vnc/index.html#faq-video
734. http://www.karlrunge.com/x11vnc/index.html#faq-linuxvc
735. http://www.karlrunge.com/x11vnc/index.html#faq-qt-embedded
736. http://www.karlrunge.com/x11vnc/index.html#faq-vmware
737. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
738. http://www.karlrunge.com/x11vnc/index.html#faq-rawfb
739. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-snapfb
740. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-24to32
741. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wait
742. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-slow_fb
743. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-defer
744. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-freqtab
745. http://www.karlrunge.com/x11vnc/index.html#faq-rawfb
746. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput
747. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput
748. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
749. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
750. http://www.redstonesoftware.com/vnc.html
751. http://www.apple.com/remotedesktop/
752. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id
753. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id
754. http://fredrik.hubbe.net/x2vnc.html
755. http://www.karlrunge.com/x11vnc/index.html#faq-win2vnc
756. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-reflect
757. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb
758. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nodragging
759. http://sourceforge.net/projects/vnc-reflector/
760. http://www.tightvnc.com/projector/
761. http://www.ultravnc.com/addons/repeater.html
762. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-connect
763. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nosel
764. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noprimary
765. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-seldir
766. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-input
767. http://www.unixuser.org/~euske/vnc2swf/
768. http://wolphination.com/linux/2006/06/30/how-to-record-videos-of-your-desktop/
769. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nofilexfer
770. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ultrafilexfer
771. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noultraext
772. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noserverdpms
773. http://www.uvnc.com/addons/singleclick.html
774. http://www.karlrunge.com/x11vnc/index.html#faq-macosx
775. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ssl
776. http://stunnel.mirt.net/
777. http://www.samba.org/
778. http://www.karlrunge.com/x11vnc/ssvnc.html
779. http://www.karlrunge.com/x11vnc/ssvnc.html
780. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nobell
781. http://www.karlrunge.com/x11vnc/index.html#faq-sound
779. http://www.cups.org/
780. http://www.karlrunge.com/x11vnc/ssvnc.html
781. http://www.karlrunge.com/x11vnc/ssvnc.html
782. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nobell
783. http://www.karlrunge.com/x11vnc/index.html#faq-sound
=======================================================================
http://www.karlrunge.com/x11vnc/chainingssh.html:
......@@ -8371,6 +8387,8 @@ References
http://www.karlrunge.com/x11vnc/ssl.html:
_________________________________________________________________
Notes on x11vnc SSL Certificates and Key Management:
The simplest scheme ("x11vnc -ssl") is where x11vnc generates a
......@@ -8451,6 +8469,7 @@ NTIwLjQxMTE2OTEPMA0GA1UEChMGeDExdm5jMS4wLAYDVQQDEyV4MTF2bmMtU0VM
Authority scheme below for a way to make this easier (you just have to
do it once).
_________________________________________________________________
Saving SSL certificates and keys:
......@@ -8493,6 +8512,7 @@ NTIwLjQxMTE2OTEPMA0GA1UEChMGeDExdm5jMS4wLAYDVQQDEyV4MTF2bmMtU0VM
then that will avoid an annoying dialog box in their Web browsers that
warn that the CommonName doesn't match the hostname.
_________________________________________________________________
Passphrases for server keys:
......@@ -8516,6 +8536,7 @@ NTIwLjQxMTE2OTEPMA0GA1UEChMGeDExdm5jMS4wLAYDVQQDEyV4MTF2bmMtU0VM
before x11vnc can continue.
_________________________________________________________________
Being your own Certificate Authority:
......@@ -8568,6 +8589,7 @@ NTIwLjQxMTE2OTEPMA0GA1UEChMGeDExdm5jMS4wLAYDVQQDEyV4MTF2bmMtU0VM
public, and they could also be used let in only a subset of all the
clients. (see [8]-sslverify)
_________________________________________________________________
How to do the above CA steps with x11vnc:
......@@ -8650,6 +8672,7 @@ NTIwLjQxMTE2OTEPMA0GA1UEChMGeDExdm5jMS4wLAYDVQQDEyV4MTF2bmMtU0VM
[17]ss_vncviewer:
ss_vncviewer -verify ./cacert.pem far-away.east:0
_________________________________________________________________
Tricks for server keys:
......@@ -8671,6 +8694,7 @@ NTIwLjQxMTE2OTEPMA0GA1UEChMGeDExdm5jMS4wLAYDVQQDEyV4MTF2bmMtU0VM
separate from your CA when you do not want to create a 2nd CA
cert+key.
_________________________________________________________________
Using external CA's:
......@@ -8704,6 +8728,7 @@ pem
You also rename the two files (.crt and .pem) to have a shorter
basename if you like.
_________________________________________________________________
Using Client Keys for Authentication:
......@@ -8752,10 +8777,26 @@ pem
and also using self-signed client keys (x11vnc -sslGenCert client
self:dilbert)
Here is how to convert our openssl crt/pem files to pkcs12 format that
can be read by Web browsers and Java:
openssl pkcs12 -export -in mycert.crt -inkey mycert.pem -out mycert.p12
it will ask for a passphrase to protect mycert.p12.
Update: as of Apr 2007 in the 0.9.1 x11vnc tarball there is a new
option setting "[20]-users sslpeer=" that will do a switch user much
like [21]-unixpw does, but this time using the emailAddress field of
the Certificate subject of the verified Client. This mode requires
[22]-sslverify turned on to verify the clients via SSL. This mode can
be useful in situations using [23]-create or [24]-svc where a new X
server needs to be started up as the authenticated user (but unlike in
-unixpw mode, the unix username is not obviously known).
_________________________________________________________________
Additional utlities:
You can get information about your keys via [20]-sslCertInfo. These
You can get information about your keys via [25]-sslCertInfo. These
lists all your keys:
x11vnc -sslCertInfo list
x11vnc -sslCertInfo ll
......@@ -8780,12 +8821,13 @@ pem
(but rm(1) will be just as effective).
_________________________________________________________________
More info:
See also this [21]article for some some general info and examples
See also this [26]article for some some general info and examples
using stunnel and openssl on Windows with VNC. Also
[22]http://www.stunnel.org/faq/certs.html
[27]http://www.stunnel.org/faq/certs.html
References
......@@ -8808,9 +8850,14 @@ References
17. http://www.karlrunge.com/x11vnc/ss_vncviewer
18. http://www.karlrunge.com/x11vnc/ss_vncviewer
19. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-sslverify
20. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-sslCertInfo
21. http://www.securityfocus.com/infocus/1677
22. http://www.stunnel.org/faq/certs.html
20. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-users
21. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-unixpw
22. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-sslverify
23. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-create
24. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-svc
25. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-sslCertInfo
26. http://www.securityfocus.com/infocus/1677
27. http://www.stunnel.org/faq/certs.html
=======================================================================
http://www.karlrunge.com/x11vnc/ssl-portal.html:
......@@ -9647,6 +9694,8 @@ Enhanced TightVNC Viewer (SSVNC: SSL/SSH VNC viewer)
[1](To Downloads) [2](To Quick Start)
[ssvnc.gif]
The Enhanced TightVNC Viewer package started as a project to add some
patches to the long neglected Unix TightVNC Viewer. However, now the
front-end GUI and wrapper scripts features dwarf the Unix TightVNC
......@@ -9754,7 +9803,7 @@ Unix and Mac OS X:
used as well.
On MacOSX there is also a SSVNC.app directory icon you can click on
to Finder to start the application.
in Finder to start the application.
Windows:
......@@ -9948,7 +9997,10 @@ Enhanced TightVNC viewer (SSVNC) options:
Note: the Ultravnc extensions only apply to servers that support
them. x11vnc/libvncserver supports some of them.
Nearly all of these can be changed dynamically in the Popup menu.
Nearly all of these can be changed dynamically in the Popup menu
(press F8 for it):
[viewer_menu.gif] [unixviewer.gif]
Windows:
......@@ -10523,7 +10575,7 @@ x11vnc: a VNC server for real X displays
Here are all of x11vnc command line options:
% x11vnc -opts (see below for -help long descriptions)
x11vnc: allow VNC connections to real X11 displays. 0.9.1 lastmod: 2007-04-18
x11vnc: allow VNC connections to real X11 displays. 0.9.1 lastmod: 2007-04-27
x11vnc options:
-display disp -auth file -N
......@@ -10637,7 +10689,7 @@ libvncserver-tight-extension options:
% x11vnc -help
x11vnc: allow VNC connections to real X11 displays. 0.9.1 lastmod: 2007-04-18
x11vnc: allow VNC connections to real X11 displays. 0.9.1 lastmod: 2007-04-27
(type "x11vnc -opts" to just list the options.)
......@@ -11479,7 +11531,8 @@ Options:
In this mode you can set X11VNC_SKIP_DISPLAY to a comma
separated list of displays (e.g. ":0,:1") to ignore
in the finding process.
in the finding process. This can also be set by the
user via "nd=" using "-" instead of ","
An interesting option is WAIT:cmd=FINDCREATEDISPLAY
that is like FINDDISPLAY in that is uses the same method
......@@ -11516,6 +11569,10 @@ Options:
Where /.../x11vnc is the full path to x11vnc.
If for some reason you do not want x11vnc to ever
try to find an existing display set the env. var
X11VNC_FINDDISPLAY_ALWAYS_FAILS=1 (also -env ...)
Use WAIT:cmd=FINDCREATEDISPLAY-print to print out the
script used. You can specify the preferred order via
e.g., WAIT:cmd=FINDCREATEDISPLAY-Xdummy,Xvfb,X and/or
......@@ -12243,6 +12300,28 @@ Options:
If you want to limit which users this will be done for,
provide them as a comma separated list after "unixpw="
Similarly, in -ssl mode, if "-users sslpeer=" is
supplied then after an SSL client authenticates with his
cert (the -sslverify option is required for this) x11vnc
will extract a UNIX username from the "emailAddress"
field (username@hostname.com) of the "Subject" in the
x509 SSL cert and then try to switch to that user as
though "-users +username" had been supplied. If you
want to limit which users this will be done for, provide
them as a comma separated list after "sslpeer=".
Set the env. var X11VNC_SSLPEER_CN to use the Common
Name (normally a hostname) instead of the Email field.
NOTE: the x11vnc administrator must take great care
that any client certs he adds to -sslverify have the
correct UNIX username in the "emailAddress" field
of the cert. Otherwise a user may be able to log in
as another. The following command can be of use in
checking: "openssl x509 -text -in file.crt", see the
"Subject:" line. Also, along with the normal RFB_*
env. vars. (see -accept) passed to external cmd=
commands, RFB_SSL_CLIENT_CERT will be set to the
client's x509 certificate string.
To immediately switch to a user *before* connections
to the X display are made or any files opened use the
"=" character: "-users =bob". That user needs to
......@@ -12767,6 +12846,8 @@ Options:
for rapid retrieval. So a W x H frambuffer is expanded
to a W x (n+1)*H one. Use 0 to disable. Default: XXX.
The "n" is actually optional, the default is 10.
For this and the other -ncache* options below you can
abbreviate "-ncache" with "-nc". Also, "-nonc"
is the same as "-ncache 0"
......
x11vnc/connections.c
View file @ 3fcab6f1
......@@ -413,6 +413,11 @@ int run_user_command(char *cmd, rfbClientPtr client, char *mode, char *input,
} else {
set_env("RFB_STATE", "UNKNOWN");
}
if (certret_str) {
set_env("RFB_SSL_CLIENT_CERT", certret_str);
} else {
set_env("RFB_SSL_CLIENT_CERT", "");
}
/* set RFB_CLIENT_PORT to peer port for command to use */
if (cd && cd->client_port > 0) {
......@@ -491,6 +496,9 @@ int run_user_command(char *cmd, rfbClientPtr client, char *mode, char *input,
/* gone, accept, afteraccept */
ok = 0;
if (!strcmp(mode, "env")) {
return 1;
}
if (!strcmp(mode, "accept") && cmd_ok("accept")) {
ok = 1;
}
......
x11vnc/help.c
View file @ 3fcab6f1
......@@ -869,7 +869,8 @@ void print_help(int mode) {
"\n"
" In this mode you can set X11VNC_SKIP_DISPLAY to a comma\n"
" separated list of displays (e.g. \":0,:1\") to ignore\n"
" in the finding process.\n"
" in the finding process. This can also be set by the\n"
" user via \"nd=\" using \"-\" instead of \",\"\n"
"\n"
" An interesting option is WAIT:cmd=FINDCREATEDISPLAY\n"
" that is like FINDDISPLAY in that is uses the same method\n"
......@@ -906,6 +907,10 @@ void print_help(int mode) {
"\n"
" Where /.../x11vnc is the full path to x11vnc.\n"
"\n"
" If for some reason you do not want x11vnc to ever\n"
" try to find an existing display set the env. var\n"
" X11VNC_FINDDISPLAY_ALWAYS_FAILS=1 (also -env ...)\n"
"\n"
" Use WAIT:cmd=FINDCREATEDISPLAY-print to print out the\n"
" script used. You can specify the preferred order via\n"
" e.g., WAIT:cmd=FINDCREATEDISPLAY-Xdummy,Xvfb,X and/or\n"
......@@ -1643,6 +1648,28 @@ void print_help(int mode) {
" If you want to limit which users this will be done for,\n"
" provide them as a comma separated list after \"unixpw=\"\n"
"\n"
" Similarly, in -ssl mode, if \"-users sslpeer=\" is\n"
" supplied then after an SSL client authenticates with his\n"
" cert (the -sslverify option is required for this) x11vnc\n"
" will extract a UNIX username from the \"emailAddress\"\n"
" field (username@hostname.com) of the \"Subject\" in the\n"
" x509 SSL cert and then try to switch to that user as\n"
" though \"-users +username\" had been supplied. If you\n"
" want to limit which users this will be done for, provide\n"
" them as a comma separated list after \"sslpeer=\".\n"
" Set the env. var X11VNC_SSLPEER_CN to use the Common\n"
" Name (normally a hostname) instead of the Email field.\n"
" NOTE: the x11vnc administrator must take great care\n"
" that any client certs he adds to -sslverify have the\n"
" correct UNIX username in the \"emailAddress\" field\n"
" of the cert. Otherwise a user may be able to log in\n"
" as another. The following command can be of use in\n"
" checking: \"openssl x509 -text -in file.crt\", see the\n"
" \"Subject:\" line. Also, along with the normal RFB_*\n"
" env. vars. (see -accept) passed to external cmd=\n"
" commands, RFB_SSL_CLIENT_CERT will be set to the\n"
" client's x509 certificate string.\n"
"\n"
" To immediately switch to a user *before* connections\n"
" to the X display are made or any files opened use the\n"
" \"=\" character: \"-users =bob\". That user needs to\n"
......@@ -2175,6 +2202,8 @@ void print_help(int mode) {
" for rapid retrieval. So a W x H frambuffer is expanded\n"
" to a W x (n+1)*H one. Use 0 to disable. Default: XXX.\n"
"\n"
" The \"n\" is actually optional, the default is 10.\n"
"\n"
" For this and the other -ncache* options below you can\n"
" abbreviate \"-ncache\" with \"-nc\". Also, \"-nonc\"\n"
" is the same as \"-ncache 0\"\n"
......
x11vnc/misc/enhanced_tightvnc_viewer/README
View file @ 3fcab6f1
......@@ -234,9 +234,9 @@ Solaris, FreeBSD, etc. Unpack your archive and see the subdirectories of
./bin
for the ones that were shipped in this project, e.g. ./bin/Linux.i686
Run "uname -sm" to see your OS+arch combination. (See the
./bin/ssvnc_cmd -h output for how to override platform autodection
via the UNAME env. var).
Run "uname -sm" to see your OS+arch combination (n.b. all Linux x86 are
mapped to Linux.i686). (See the ./bin/ssvnc_cmd -h output for how to
override platform autodection via the UNAME env. var).
External Dependencies:
......
x11vnc/misc/enhanced_tightvnc_viewer/bin/ssvnc
View file @ 3fcab6f1
......@@ -25,16 +25,12 @@ if [ "X$FULLNAME" = "XKarl J. Runge" ]; then
VNCVIEWER_POPUP_FIX=1
export VNCVIEWER_POPUP_FIX
#if uname -smr | grep 'Linux 2\.4.*i686' > /dev/null; then
# UNAME="Linux.i686.older"
# export UNAME
#fi
PATH=`echo "$PATH" | sed -e 's,runge/bin/override,-------------,'`
fi
if [ "X$WISH" = "X" ]; then
WISH=wish
for try in wish wish8.3 wish8.4 wish8.5
for try in wish wish8.3 wish8.4 wish8.5 wish8.6
do
if type $try > /dev/null; then
WISH=$try
......@@ -53,7 +49,7 @@ export SSVNC_LAUNCH
#
name=$UNAME
if [ "X$name" = "X" ]; then
name=`uname -sm | sed -e 's/ /./g'`
name=`uname -sm | sed -e 's/ /./g' -e 's/Linux\.i.86/Linux.i686/'`
fi
f="$0"
......
x11vnc/misc/enhanced_tightvnc_viewer/bin/ssvnc_cmd
View file @ 3fcab6f1
......@@ -113,7 +113,7 @@ fi
#
name=$UNAME
if [ "X$name" = "X" ]; then
name=`uname -sm | sed -e 's/ /./g'`
name=`uname -sm | sed -e 's/ /./g' -e 's/Linux\.i.86/Linux.i686/'`
fi
f="$0"
......
x11vnc/misc/enhanced_tightvnc_viewer/bin/util/ssvnc.tcl
View file @ 3fcab6f1
......@@ -2760,7 +2760,7 @@ proc launch_unix {hp} {
global env
set env(SS_VNCVIEWER_RM) $passwdfile
} else {
catch {exec sh -c "sleep 15; rm $passwdfile" &}
catch {exec sh -c "sleep 15; rm $passwdfile 2>/dev/null" &}
}
if {$darwin_cotvnc} {
set cmd "$cmd --PasswordFile $passwdfile"
......
x11vnc/misc/enhanced_tightvnc_viewer/build.unix
View file @ 3fcab6f1
......@@ -49,7 +49,7 @@ fi
#
name=$UNAME
if [ "X$name" = "X" ]; then
name=`uname -sm | sed -e 's/ /./g'`
name=`uname -sm | sed -e 's/ /./g' -e 's/Linux\.i.86/Linux.i686/'`
fi
if [ "X$name" = "X" ]; then
echo "cannot determine platform: os.arch, e.g. Linux.i686"
......@@ -71,7 +71,8 @@ if [ -d $dest ]; then
if [ "X$x" = "Xn" ]; then
exit
fi
rm -rf $dest
rm -f $dest/*stunnel*
rm -f $dest/*vncviewer*
fi
mkdir -p $dest || exit 1
......
x11vnc/misc/enhanced_tightvnc_viewer/src/patches/tight-vncviewer-full.patch
View file @ 3fcab6f1
......@@ -5557,507 +5557,6 @@ diff -Naur -X ./exclude vnc_unixsrc.orig/vncviewer/tight.c vnc_unixsrc/vncviewer
return True;
}
diff -Naur -X ./exclude vnc_unixsrc.orig/vncviewer/vncviewer._man vnc_unixsrc/vncviewer/vncviewer._man
--- vnc_unixsrc.orig/vncviewer/vncviewer._man 1969-12-31 19:00:00.000000000 -0500
+++ vnc_unixsrc/vncviewer/vncviewer._man 2007-03-20 10:11:33.000000000 -0400
@@ -0,0 +1,497 @@
+'\" t
+.\" ** The above line should force tbl to be a preprocessor **
+.\" Man page for X vncviewer
+.\"
+.\" Copyright (C) 1998 Marcus.Brinkmann@ruhr-uni-bochum.de
+.\" Copyright (C) 2000,2001 Red Hat, Inc.
+.\" Copyright (C) 2001-2003 Constantin Kaplinsky <const@ce.cctpu.edu.ru>
+.\"
+.\" You may distribute under the terms of the GNU General Public
+.\" License as specified in the file LICENCE.TXT that comes with the
+.\" TightVNC distribution.
+.\"
+.TH vncviewer 1 "January 2003" "" "TightVNC"
+.SH NAME
+vncviewer \- an X viewer client for VNC
+.SH SYNOPSIS
+.B vncviewer
+.RI [\| options \|]
+.RI [\| host \|][\| :display \|]
+.br
+.B vncviewer
+.RI [\| options \|]
+.RI [\| host \|][\| ::port \|]
+.br
+.B vncviewer
+.RI [\| options \|]
+.IR \-listen
+.RI [\| display \|]
+.br
+.B vncviewer
+.IR \-help
+.br
+.SH DESCRIPTION
+.B vncviewer
+is an Xt\-based client application for the VNC (Virtual Network
+Computing) system. It can connect to any VNC\-compatible server such
+as \fBXvnc\fR or WinVNC, allowing you to control desktop environment
+of a different machine.
+
+You can use F8 to display a pop\-up utility menu. Press F8 twice to
+pass single F8 to the remote side.
+.SH OPTIONS
+.TP
+\fB\-help\fR
+Prints a short usage notice to stderr.
+.TP
+\fB\-listen\fR
+Make the viewer listen on port 5500+\fIdisplay\fR for reverse
+connections from a server. WinVNC supports reverse connections using
+the "Add New Client" menu option, or the \-connect command line
+option. \fBXvnc\fR requires the use of the helper program
+\fBvncconnect\fR.
+.TP
+\fB\-via\fR \fIgateway\fR
+Automatically create encrypted TCP tunnel to the \fIgateway\fR machine
+before connection, connect to the \fIhost\fR through that tunnel
+(TightVNC\-specific). By default, this option invokes SSH local port
+forwarding, assuming that SSH client binary can be accessed as
+/usr/bin/ssh. Note that when using the \fB\-via\fR option, the host
+machine name should be specified as known to the gateway machine, e.g.
+"localhost" denotes the \fIgateway\fR, not the machine where vncviewer
+was launched. See the ENVIRONMENT section below for the information on
+configuring the \fB\-via\fR option.
+.TP
+\fB\-shared\fR
+When connecting, specify that a shared connection is requested. In
+TightVNC, this is the default mode, allowing you to share the desktop
+with other clients already using it.
+.TP
+\fB\-noshared\fR
+When connecting, specify that the session may not be shared. This
+would either disconnect other connected clients or refuse your
+connection, depending on the server configuration.
+.TP
+\fB\-viewonly\fR
+Disable transfer of mouse and keyboard events from the client to the
+server.
+.TP
+\fB\-fullscreen\fR
+Start in full\-screen mode. Please be aware that operating in
+full\-screen mode may confuse X window managers. Typically, such
+conflicts cause incorrect handling of input focus or make the viewer
+window disappear mysteriously. See the grabKeyboard setting in the
+RESOURCES section below for a method to solve input focus problem.
+.TP
+\fB\-noraiseonbeep\fR
+By default, the viewer shows and raises its window on remote beep
+(bell) event. This option disables such behaviour
+(TightVNC\-specific).
+.TP
+\fB\-user\fR \fIusername\fR
+User name for Unix login authentication. Default is to use current
+Unix user name. If this option was given, the viewer will prefer Unix
+login authentication over the standard VNC authentication.
+.TP
+\fB\-passwd\fR \fIpasswd\-file\fR
+File from which to get the password (as generated by the
+\fBvncpasswd\fR(1) program). This option affects only the standard VNC
+authentication.
+.TP
+\fB\-encodings\fR \fIencoding\-list\fR
+TightVNC supports several different compression methods to encode
+screen updates; this option specifies a set of them to use in order of
+preference. Encodings are specified separated with spaces, and must
+thus be enclosed in quotes if more than one is specified. Available
+encodings, in default order for a remote connection, are "copyrect
+tight hextile zlib corre rre raw". For a local connection (to the same
+machine), the default order to try is "raw copyrect tight hextile zlib
+corre rre". Raw encoding is always assumed as a last option if no
+other encoding can be used for some reason. For more information on
+encodings, see the section ENCODINGS below.
+.TP
+\fB\-bgr233\fR
+Always use the BGR233 format to encode pixel data. This reduces
+network traffic, but colors may be represented inaccurately. The
+bgr233 format is an 8\-bit "true color" format, with 2 bits blue, 3
+bits green, and 3 bits red.
+.TP
+\fB\-owncmap\fR
+Try to use a PseudoColor visual and a private colormap. This allows
+the VNC server to control the colormap.
+.TP
+\fB\-truecolour\fR, \fB\-truecolor\fR
+Try to use a TrueColor visual.
+.TP
+\fB\-depth\fR \fIdepth\fR
+On an X server which supports multiple TrueColor visuals of different
+depths, attempt to use the specified one (in bits per pixel); if
+successful, this depth will be requested from the VNC server.
+.TP
+\fB\-compresslevel \fIlevel\fR
+Use specified compression \fIlevel\fR (0..9) for "tight" and "zlib"
+encodings (TightVNC\-specific). Level 1 uses minimum of CPU time and
+achieves weak compression ratios, while level 9 offers best
+compression but is slow in terms of CPU time consumption on the server
+side. Use high levels with very slow network connections, and low
+levels when working over high\-speed LANs. It's not recommended to use
+compression level 0, reasonable choices start from the level 1.
+.TP
+\fB\-quality \fIlevel\fR
+Use the specified JPEG quality \fIlevel\fR (0..9) for the "tight"
+encoding (TightVNC\-specific). Quality level 0 denotes bad image
+quality but very impressive compression ratios, while level 9 offers
+very good image quality at lower compression ratios. Note that the
+"tight" encoder uses JPEG to encode only those screen areas that look
+suitable for lossy compression, so quality level 0 does not always
+mean unacceptable image quality.
+.TP
+\fB\-nojpeg\fR
+Disable lossy JPEG compression in Tight encoding (TightVNC\-specific).
+Disabling JPEG compression is not a good idea in typical cases, as
+that makes the Tight encoder less efficient. You might want to use
+this option if it's absolutely necessary to achieve perfect image
+quality (see also the \fB\-quality\fR option).
+.TP
+\fB\-nocursorshape\fR
+Disable cursor shape updates, protocol extensions used to handle
+remote cursor movements locally on the client side
+(TightVNC\-specific). Using cursor shape updates decreases delays with
+remote cursor movements, and can improve bandwidth usage dramatically.
+.TP
+\fB\-x11cursor\fR
+Use a real X11 cursor with X-style cursor shape updates, instead of
+drawing the remote cursor on the framebuffer. This option also
+disables the dot cursor, and disables cursor position updates in
+non-fullscreen mode.
+.TP
+\fB\-autopass\fR
+Read a plain-text password from stdin. This option affects only the
+standard VNC authentication.
+
+.SH Enhanced TightVNC Viewer OPTIONS
+.TP
+Enhanced TightVNC Viewer web page is located at:
+.TP
+http://www.karlrunge.com/x11vnc/ssvnc.html
+.TP
+Note: ZRLE encoding is now supported.
+.TP
+Note: F9 is shortcut to Toggle FullScreen mode.
+.TP
+\fB\-use64\fR
+In \fB\-bgr233\fR mode, use 64 colors instead of 256.
+.TP
+\fB\-bgr222\fR
+Same as \fB\-use64\fR.
+.TP
+\fB\-use8\fR
+In \fB\-bgr233\fR mode, use 8 colors instead of 256.
+.TP
+\fB\-bgr111\fR
+Same as \fB\-use8\fR.
+.TP
+\fB\-16bpp\fR
+If the vnc viewer X display is depth 24 at 32bpp
+request a 16bpp format from the VNC server to cut
+network traffic by up to 2X, then tranlate the
+pixels to 32bpp locally.
+.TP
+\fB\-bgr565\fR
+Same as \fB\-16bpp\fR.
+.TP
+\fB\-alpha\fR
+Use alphablending transparency for local cursors
+requires: x11vnc server, both client and server
+must be 32bpp and same endianness.
+.TP
+\fB\-ycrop\fR n
+Only show the top n rows of the framebuffer. For
+use with x11vnc \fB\-ncache\fR client caching option
+to help "hide" the pixel cache region.
+Use a negative value (e.g. \fB\-1\fR) for autodetection.
+Autodetection will always take place if the remote
+fb height is more than 2 times the width.
+.TP
+\fB\-sbwidth\fR n
+Scrollbar width, default is very narrow: 2 pixels,
+it is narrow to avoid distraction in \fB\-ycrop\fR mode.
+.TP
+\fB\-rawlocal\fR
+Prefer raw encoding for localhost, default is
+no, i.e. assumes you have a SSH tunnel instead.
+.TP
+\fB\-graball\fR
+Grab the entire X server when in fullscreen mode,
+needed by some old window managers like fvwm2.
+.TP
+\fB\-popupfix\fR
+Warp the popup back to the pointer position,
+needed by some old window managers like fvwm2.
+.TP
+\fB\-grabkbd\fR
+Grab the X keyboard when in fullscreen mode,
+needed by some window managers. Same as \fB\-grabkeyboard\fR.
+\fB\-grabkbd\fR is the default, use \fB\-nograbkbd\fR to disable.
+.TP
+\fB\-bs/-nobs\fR
+Whether or not to use X server Backingstore for the
+main viewer window. The default is to not, mainly
+because most Linux, etc, systems X servers disable
+*all* Backingstore by default. To re-enable it put
+
+Option "Backingstore"
+
+in the Device section of /etc/X11/xorg.conf.
+In -bs mode with no X server backingstore, whenever an
+area of the screen is re-exposed it must go out to the
+VNC server to retrieve the pixels. This is too slow.
+
+In -nobs mode, memory is allocated by the viewer to
+provide its own backing of the main viewer window. This
+actually makes some activities faster (changes in large
+regions) but can appear to "flash" too much.
+.TP
+\fB\-noshm\fR
+Disable use of MIT shared memory extension (not recommended)
+.TP
+\fB New Popup actions:\fR
+
+ Cursor Shape: ~ -nocursorshape
+ X11 Cursor: ~ -x11cursor
+ Cursor Alphablend: ~ -alpha
+ Disable JPEG: ~ -nojpeg
+ Prefer raw for localhost ~ -rawlocal
+ Full Color as many colors as local screen allows.
+ Grey scale (16 & 8-bpp) ~ -grey, for low colors 16/8bpp modes only.
+ 16 bit color (BGR565) ~ -bgr565
+ 8 bit color (BGR233) ~ -bgr233
+ 256 colors ~ -bgr233 default # of colors.
+ 64 colors ~ -bgr222 / -use64
+ 8 colors ~ -bgr111 / -use8
+
+
+ Disable Remote Input Ultravnc ext. Try to prevent input and
+ viewing of monitor at physical display.
+ Single Window Ultravnc ext. Grab and a single window.
+ (click on the window you want).
+ Set 1/n Server Scale Ultravnc ext. Scale desktop by 1/n.
+ prompt is from the terminal.
+ Text Chat Ultravnc ext. Do Text Chat, currently
+ input via the terminal (no window).
+
+ Note: the Ultravnc extensions only apply to servers that support
+ them. x11vnc/libvncserver supports some of them.
+
+.SH ENCODINGS
+The server supplies information in whatever format is desired by the
+client, in order to make the client as easy as possible to implement.
+If the client represents itself as able to use multiple formats, the
+server will choose one.
+
+.I Pixel format
+refers to the representation of an individual pixel. The most common
+formats are 24 and 16 bit "true\-color" values, and 8\-bit "color map"
+representations, where an arbitrary map converts the color number to
+RGB values.
+
+.I Encoding
+refers to how a rectangle of pixels are sent (all pixel information in
+VNC is sent as rectangles). All rectangles come with a header giving
+the location and size of the rectangle and an encoding type used by
+the data which follows. These types are listed below.
+.TP
+.B Raw
+The raw encoding simply sends width*height pixel values. All clients
+are required to support this encoding type. Raw is also the fastest
+when the server and viewer are on the same machine, as the connection
+speed is essentially infinite and raw encoding minimizes processing
+time.
+.TP
+.B CopyRect
+The Copy Rectangle encoding is efficient when something is being
+moved; the only data sent is the location of a rectangle from which
+data should be copied to the current location. Copyrect could also be
+used to efficiently transmit a repeated pattern.
+.TP
+.B RRE
+The Rise\-and\-Run\-length\-Encoding is basically a 2D version of
+run\-length encoding (RLE). In this encoding, a sequence of identical
+pixels are compressed to a single value and repeat count. In VNC, this
+is implemented with a background color, and then specifications of an
+arbitrary number of subrectangles and color for each. This is an
+efficient encoding for large blocks of constant color.
+.TP
+.B CoRRE
+This is a minor variation on RRE, using a maximum of 255x255 pixel
+rectangles. This allows for single\-byte values to be used, reducing
+packet size. This is in general more efficient, because the savings
+from sending 1\-byte values generally outweighs the losses from the
+(relatively rare) cases where very large regions are painted the same
+color.
+.TP
+.B Hextile
+Here, rectangles are split up in to 16x16 tiles, which are sent in a
+predetermined order. The data within the tiles is sent either raw or
+as a variant on RRE. Hextile encoding is usually the best choice for
+using in high\-speed network environments (e.g. Ethernet local\-area
+networks).
+.TP
+.B Zlib
+Zlib is a very simple encoding that uses zlib library to compress raw
+pixel data. This encoding achieves good compression, but consumes a
+lot of CPU time. Support for this encoding is provided for
+compatibility with VNC servers that might not understand Tight
+encoding which is more efficient than Zlib in nearly all real\-life
+situations.
+.TP
+.B Tight
+Like Zlib encoding, Tight encoding uses zlib library to compress the
+pixel data, but it pre\-processes data to maximize compression ratios,
+and to minimize CPU usage on compression. Also, JPEG compression may
+be used to encode color\-rich screen areas (see the description of
+\-quality and \-nojpeg options above). Tight encoding is usually the
+best choice for low\-bandwidth network environments (e.g. slow modem
+connections).
+.SH RESOURCES
+X resources that \fBvncviewer\fR knows about, aside from the
+normal Xt resources, are as follows:
+.TP
+.B shareDesktop
+Equivalent of \fB\-shared\fR/\fB\-noshared\fR options. Default true.
+.TP
+.B viewOnly
+Equivalent of \fB\-viewonly\fR option. Default false.
+.TP
+.B fullScreen
+Equivalent of \fB\-fullscreen\fR option. Default false.
+.TP
+.B grabKeyboard
+Grab keyboard in full-screen mode. This can help to solve problems
+with losing keyboard focus. Default false.
+.TP
+.B raiseOnBeep
+Equivalent of \fB\-noraiseonbeep\fR option, when set to false. Default
+true.
+.TP
+.B passwordFile
+Equivalent of \fB\-passwd\fR option.
+.TP
+.B userLogin
+Equivalent of \fB\-user\fR option.
+.TP
+.B passwordDialog
+Whether to use a dialog box to get the password (true) or get it from
+the tty (false). Irrelevant if \fBpasswordFile\fR is set. Default
+false.
+.TP
+.B encodings
+Equivalent of \fB\-encodings\fR option.
+.TP
+.B compressLevel
+Equivalent of \fB\-compresslevel\fR option (TightVNC\-specific).
+.TP
+.B qualityLevel
+Equivalent of \fB\-quality\fR option (TightVNC\-specific).
+.TP
+.B enableJPEG
+Equivalent of \fB\-nojpeg\fR option, when set to false. Default true.
+.TP
+.B useRemoteCursor
+Equivalent of \fB\-nocursorshape\fR option, when set to false
+(TightVNC\-specific). Default true.
+.TP
+.B useBGR233
+Equivalent of \fB\-bgr233\fR option. Default false.
+.TP
+.B nColours
+When using BGR233, try to allocate this many "exact" colors from the
+BGR233 color cube. When using a shared colormap, setting this resource
+lower leaves more colors for other X clients. Irrelevant when using
+truecolor. Default is 256 (i.e. all of them).
+.TP
+.B useSharedColours
+If the number of "exact" BGR233 colors successfully allocated is less
+than 256 then the rest are filled in using the "nearest" colors
+available. This resource says whether to only use the "exact" BGR233
+colors for this purpose, or whether to use other clients' "shared"
+colors as well. Default true (i.e. use other clients' colors).
+.TP
+.B forceOwnCmap
+Equivalent of \fB\-owncmap\fR option. Default false.
+.TP
+.B forceTrueColour
+Equivalent of \fB\-truecolour\fR option. Default false.
+.TP
+.B requestedDepth
+Equivalent of \fB\-depth\fR option.
+.TP
+.B useSharedMemory
+Use MIT shared memory extension if on the same machine as the X
+server. Default true.
+.TP
+.B wmDecorationWidth, wmDecorationHeight
+The total width and height taken up by window manager decorations.
+This is used to calculate the maximum size of the VNC viewer window.
+Default is width 4, height 24.
+.TP
+.B bumpScrollTime, bumpScrollPixels
+When in full screen mode and the VNC desktop is bigger than the X
+display, scrolling happens whenever the mouse hits the edge of the
+screen. The maximum speed of scrolling is bumpScrollPixels pixels
+every bumpScrollTime milliseconds. The actual speed of scrolling will
+be slower than this, of course, depending on how fast your machine is.
+Default 20 pixels every 25 milliseconds.
+.TP
+.B popupButtonCount
+The number of buttons in the popup window. See the README file for
+more information on how to customize the buttons.
+.TP
+.B debug
+For debugging. Default false.
+.TP
+.B rawDelay, copyRectDelay
+For debugging, see the README file for details. Default 0 (off).
+.SH ENVIRONMENT
+When started with the \fB\-via\fR option, vncviewer reads the
+\fBVNC_VIA_CMD\fR environment variable, expands patterns beginning
+with the "%" character, and executes result as a command assuming that
+it would create TCP tunnel that should be used for VNC connection. If
+not set, this environment variable defaults to "/usr/bin/ssh -f -L
+%L:%H:%R %G sleep 20".
+
+The following patterns are recognized in the \fBVNC_VIA_CMD\fR (note
+that all the patterns %G, %H, %L and %R must be present in the command
+template):
+.TP
+.B %%
+A literal "%";
+.TP
+.B %G
+gateway host name;
+.TP
+.B %H
+remote VNC host name, as known to the gateway;
+.TP
+.B %L
+local TCP port number;
+.TP
+.B %R
+remote TCP port number.
+.SH SEE ALSO
+\fBvncserver\fR(1), \fBXvnc\fR(1), \fBvncpasswd\fR(1),
+\fBvncconnect\fR(1), \fBssh\fR(1)
+.SH AUTHORS
+Original VNC was developed in AT&T Laboratories Cambridge. TightVNC
+additions was implemented by Constantin Kaplinsky. Many other people
+participated in development, testing and support.
+
+\fBMan page authors:\fR
+.br
+Marcus Brinkmann <Marcus.Brinkmann@ruhr-uni-bochum.de>,
+.br
+Terran Melconian <terran@consistent.org>,
+.br
+Tim Waugh <twaugh@redhat.com>,
+.br
+Constantin Kaplinsky <const@ce.cctpu.edu.ru>
diff -Naur -X ./exclude vnc_unixsrc.orig/vncviewer/vncviewer.c vnc_unixsrc/vncviewer/vncviewer.c
--- vnc_unixsrc.orig/vncviewer/vncviewer.c 2004-01-13 09:22:05.000000000 -0500
+++ vnc_unixsrc/vncviewer/vncviewer.c 2007-04-10 14:14:58.000000000 -0400
......
x11vnc/options.c
View file @ 3fcab6f1
......@@ -220,6 +220,7 @@ int ncache_pad = 0;
#endif
int ncache_xrootpmap = NCACHE_XROOTPMAP;
int ncache0 = 0;
int ncache_default = 10;
int ncache_copyrect = 0;
int ncache_wf_raises = 1;
int ncache_dt_change = 1;
......
x11vnc/options.h
View file @ 3fcab6f1
......@@ -162,6 +162,7 @@ extern int wireframe_in_progress;
extern int ncache;
extern int ncache0;
extern int ncache_default;
extern int ncache_copyrect;
extern int ncache_wf_raises;
extern int ncache_dt_change;
......
x11vnc/sslhelper.c
View file @ 3fcab6f1
......@@ -1315,6 +1315,11 @@ if (db) fprintf(stderr, "buf: '%s'\n", buf);
return 1;
}
static char *certret = NULL;
static int certret_fd = -1;
static mode_t omode;
char *certret_str = NULL;
void accept_openssl(int mode, int presock) {
int sock = -1, listen = -1, cport, csock, vsock;
int status, n, i, db = 0;
......@@ -1456,6 +1461,23 @@ void accept_openssl(int mode, int presock) {
name = NULL;
}
if (certret) {
free(certret);
}
if (certret_str) {
free(certret_str);
certret_str = NULL;
}
certret = strdup("/tmp/x11vnc-certret.XXXXXX");
omode = umask(077);
certret_fd = mkstemp(certret);
umask(omode);
if (certret_fd < 0) {
free(certret);
certret = NULL;
certret_fd = -1;
}
/* now fork the child to handle the SSL: */
pid = fork();
......@@ -1785,6 +1807,7 @@ if (db) fprintf(stderr, "iface: %s\n", iface);
signal(SIGALRM, SIG_DFL);
close(csock);
if (vsock < 0) {
rfbLog("SSL: accept_openssl: connection from ssl_helper failed.\n");
rfbLogPerror("accept");
......@@ -1794,11 +1817,42 @@ if (db) fprintf(stderr, "iface: %s\n", iface);
if (mode == OPENSSL_INETD || ssl_no_fail) {
clean_up_exit(1);
}
if (certret_fd >= 0) {
close(certret_fd);
certret_fd = -1;
}
if (certret) {
unlink(certret);
}
return;
}
if (db) fprintf(stderr, "accept_openssl: vsock: %d\n", vsock);
n = read(vsock, rcookie, strlen(cookie));
if (certret) {
struct stat sbuf;
sbuf.st_size = 0;
if (certret_fd >= 0 && stat(certret, &sbuf) == 0 && sbuf.st_size > 0) {
certret_str = (char *) malloc(sbuf.st_size+1);
read(certret_fd, certret_str, sbuf.st_size);
close(certret_fd);
certret_fd = -1;
}
if (certret_fd >= 0) {
close(certret_fd);
certret_fd = -1;
}
unlink(certret);
if (certret_str && strstr(certret_str, "NOCERT") == certret_str) {
free(certret_str);
certret_str = NULL;
}
if (0 && certret_str) {
fprintf(stderr, "certret_str[%d]:\n%s\n", sbuf.st_size, certret_str);
}
}
if (n != (int) strlen(cookie) || strncmp(cookie, rcookie, n)) {
rfbLog("SSL: accept_openssl: cookie from ssl_helper failed. %d\n", n);
if (errno != 0) {
......@@ -2065,6 +2119,30 @@ if (db > 1) fprintf(stderr, "ssl_init: 4\n");
}
rfbLog("SSL: ssl_helper[%d]: SSL_accept() succeeded for: %s\n", getpid(), name);
if (SSL_get_verify_result(ssl) == X509_V_OK) {
X509 *x;
FILE *cr = NULL;
if (certret != NULL) {
cr = fopen(certret, "w");
}
x = SSL_get_peer_certificate(ssl);
if (x == NULL) {
rfbLog("SSL: ssl_helper[%d]: accepted client %s x509 peer cert is null\n", getpid(), name);
if (cr != NULL) {
fprintf(cr, "NOCERT\n");
fclose(cr);
}
} else {
rfbLog("SSL: ssl_helper[%d]: accepted client %s x509 cert is:\n", getpid(), name);
X509_print_ex_fp(stderr, x, 0, XN_FLAG_MULTILINE);
if (cr != NULL) {
X509_print_ex_fp(cr, x, 0, XN_FLAG_MULTILINE);
fclose(cr);
}
}
}
free(name);
return 1;
......
x11vnc/sslhelper.h
View file @ 3fcab6f1
......@@ -14,6 +14,7 @@ extern int openssl_port_num;
extern int https_sock;
extern pid_t openssl_last_helper_pid;
extern char *openssl_last_ip;
extern char *certret_str;
extern void raw_xfer(int csock, int s_in, int s_out);
......
x11vnc/ssltools.h
View file @ 3fcab6f1
......@@ -1295,7 +1295,7 @@ char create_display[] =
"\n"
"have_root=\"\"\n"
"id0=`id`\n"
"if id | grep -w root > /dev/null; then\n"
"if id | sed -e 's/ gid.*$//' | grep -w root > /dev/null; then\n"
" have_root=\"1\"\n"
"fi\n"
"\n"
......
x11vnc/user.c
View file @ 3fcab6f1
......@@ -29,11 +29,11 @@ static void switch_user_task_dummy(void);
static void switch_user_task_solid_bg(void);
static char *get_login_list(int with_display);
static char **user_list(char *user_str);
static void user2uid(char *user, uid_t *uid, char **name, char **home);
static void user2uid(char *user, uid_t *uid, gid_t *gid, char **name, char **home);
static int lurk(char **users);
static int guess_user_and_switch(char *str, int fb_mode);
static int try_user_and_display(uid_t uid, char *dpystr);
static int switch_user_env(uid_t uid, char *name, char *home, int fb_mode);
static int try_user_and_display(uid_t uid, gid_t gid, char *dpystr);
static int switch_user_env(uid_t uid, gid_t gid, char *name, char *home, int fb_mode);
static void try_to_switch_users(void);
......@@ -236,7 +236,7 @@ static char **user_list(char *user_str) {
return list;
}
static void user2uid(char *user, uid_t *uid, char **name, char **home) {
static void user2uid(char *user, uid_t *uid, gid_t *gid, char **name, char **home) {
int numerical = 1;
char *q;
......@@ -271,6 +271,7 @@ static void user2uid(char *user, uid_t *uid, char **name, char **home) {
}
if (pw) {
*uid = pw->pw_uid;
*gid = pw->pw_gid;
*name = pw->pw_name; /* n.b. use immediately */
*home = pw->pw_dir;
}
......@@ -281,6 +282,7 @@ static void user2uid(char *user, uid_t *uid, char **name, char **home) {
static int lurk(char **users) {
uid_t uid;
gid_t gid;
int success = 0, dmin = -1, dmax = -1;
char *p, *logins, **u;
......@@ -390,10 +392,10 @@ static int lurk(char **users) {
}
}
user2uid(user, &uid, &name, &home);
user2uid(user, &uid, &gid, &name, &home);
free(t);
if (! uid) {
if (! uid || ! gid) {
ok = 0;
}
......@@ -406,8 +408,8 @@ static int lurk(char **users) {
if (dn >= 0) {
sprintf(dpystr, ":%d", dn);
}
if (try_user_and_display(uid, dpystr)) {
if (switch_user_env(uid, name, home, 0)) {
if (try_user_and_display(uid, gid, dpystr)) {
if (switch_user_env(uid, gid, name, home, 0)) {
rfbLog("lurk: now user: %s @ %s\n",
name, dpystr);
started_as_root = 2;
......@@ -539,7 +541,7 @@ static int guess_user_and_switch(char *str, int fb_mode) {
return ret;
}
static int try_user_and_display(uid_t uid, char *dpystr) {
static int try_user_and_display(uid_t uid, gid_t gid, char *dpystr) {
/* NO strtoks */
#if LIBVNCSERVER_HAVE_FORK && LIBVNCSERVER_HAVE_SYS_WAIT_H && LIBVNCSERVER_HAVE_PWD_H
pid_t pid, pidw;
......@@ -578,7 +580,7 @@ static int try_user_and_display(uid_t uid, char *dpystr) {
signal(SIGQUIT, SIG_DFL);
signal(SIGTERM, SIG_DFL);
rc = switch_user_env(uid, name, home, 0);
rc = switch_user_env(uid, gid, name, home, 0);
if (! rc) {
exit(1);
}
......@@ -606,6 +608,7 @@ int switch_user(char *user, int fb_mode) {
/* NO strtoks */
int doit = 0;
uid_t uid = 0;
gid_t gid = 0;
char *name, *home;
if (*user == '+') {
......@@ -617,20 +620,23 @@ int switch_user(char *user, int fb_mode) {
return guess_user_and_switch(user, fb_mode);
}
user2uid(user, &uid, &name, &home);
user2uid(user, &uid, &gid, &name, &home);
if (uid == (uid_t) -1 || uid == 0) {
return 0;
}
if (gid == 0) {
return 0;
}
if (! doit && dpy) {
/* see if this display works: */
char *dstr = DisplayString(dpy);
doit = try_user_and_display(uid, dstr);
doit = try_user_and_display(uid, gid, dstr);
}
if (doit) {
int rc = switch_user_env(uid, name, home, fb_mode);
int rc = switch_user_env(uid, gid, name, home, fb_mode);
if (rc) {
started_as_root = 2;
}
......@@ -640,7 +646,7 @@ int switch_user(char *user, int fb_mode) {
}
}
static int switch_user_env(uid_t uid, char *name, char *home, int fb_mode) {
static int switch_user_env(uid_t uid, gid_t gid, char *name, char *home, int fb_mode) {
/* NO strtoks */
char *xauth;
int reset_fb = 0;
......@@ -657,6 +663,13 @@ static int switch_user_env(uid_t uid, char *name, char *home, int fb_mode) {
clean_shm(0);
free_tiles();
}
if (setgid(gid) != 0) {
if (reset_fb) {
/* 2 means we did clean_shm and free_tiles */
do_new_fb(2);
}
return 0;
}
if (setuid(uid) != 0) {
if (reset_fb) {
/* 2 means we did clean_shm and free_tiles */
......@@ -1115,6 +1128,7 @@ void user_supplied_opts(char *opts) {
"rotate", "ro",
"geometry", "geom", "ge",
"noncache", "nc",
"nodisplay", "nd",
NULL
};
......@@ -1485,12 +1499,89 @@ if (0) db = 1;
int n;
int nodisp = 0;
int saw_xdmcp = 0;
char *usslpeer = NULL;
memset(line1, 0, 1024);
memset(line2, 0, 16384);
if (users_list && strstr(users_list, "sslpeer=") == users_list) {
int ok = 0;
char *u = NULL, *upeer = NULL;
if (certret_str) {
char *q, *p, *str = strdup(certret_str);
q = strstr(str, "Subject: ");
if (! q) return 0;
p = strstr(q, "\n");
if (p) *p = '\0';
q = strstr(q, "CN=");
if (! q) return 0;
if (! getenv("X11VNC_SSLPEER_CN")) {
p = q;
q = strstr(q, "/emailAddress=");
if (! q) q = strstr(p, "/Email=");
if (! q) return 0;
}
q = strstr(q, "=");
if (! q) return 0;
q++;
p = strstr(q, " ");
if (p) *p = '\0';
p = strstr(q, "@");
if (p) *p = '\0';
p = strstr(q, "/");
if (p) *p = '\0';
upeer = strdup(q);
if (strcmp(upeer, "")) {
p = upeer;
while (*p != '\0') {
char c = *p;
if (!isalnum((int) c)) {
*p = '\0';
break;
}
p++;
}
if (strcmp(upeer, "")) {
ok = 1;
}
}
}
if (! ok || !upeer) {
return 0;
}
rfbLog("sslpeer unix username extracted from x509 cert: %s\n", upeer);
u = (char *) malloc(strlen(upeer+2));
u[0] = '\0';
if (!strcmp(users_list, "sslpeer=")) {
sprintf(u, "+%s", upeer);
} else {
char *p, *str = strdup(users_list);
p = strtok(str + strlen("sslpeer="), ",");
while (p) {
if (!strcmp(p, upeer)) {
sprintf(u, "+%s", upeer);
break;
}
p = strtok(NULL, ",");
}
free(str);
}
if (u[0] == '\0') {
rfbLog("sslpeer cannot determine user: %s\n", upeer);
free(u);
return 0;
}
free(u);
usslpeer = upeer;
}
/* only sets environment variables: */
run_user_command("", latest_client, "env", NULL, 0, NULL);
if (!strcmp(cmd, "FINDDISPLAY") ||
strstr(cmd, "FINDCREATEDISPLAY") == cmd) {
char *nd = "";
tmp_fd = mkstemp(tmp);
if (tmp_fd < 0) {
rfbLog("wait_for_client: open failed: %s\n", tmp);
......@@ -1498,7 +1589,12 @@ if (0) db = 1;
clean_up_exit(1);
}
chmod(tmp, 0644);
write(tmp_fd, find_display, strlen(find_display));
if (getenv("X11VNC_FINDDISPLAY_ALWAYS_FAILS")) {
char *s = "#!/bin/sh\necho _FAIL_\nexit 1\n";
write(tmp_fd, s, strlen(s));
} else {
write(tmp_fd, find_display, strlen(find_display));
}
close(tmp_fd);
nodisp = 1;
......@@ -1536,6 +1632,7 @@ if (!keep_unixpw_opts) {
} else if (strstr(t, "failsafe")) {
sprintf(xsess, "failsafe");
}
q = strstr(t, "ge=");
if (! q) q = strstr(t, "geom=");
if (! q) q = strstr(t, "geometry=");
......@@ -1566,28 +1663,60 @@ if (!keep_unixpw_opts) {
}
free(t);
}
set_env("FD_GEOM", geom);
set_env("FD_SESS", xsess);
if (unixpw && keep_unixpw_user) {
create_cmd = (char *) malloc(strlen(tmp)
if (usslpeer || (unixpw && keep_unixpw_user)) {
char *uu = usslpeer;
if (!uu) {
uu = keep_unixpw_user;
}
create_cmd = (char *) malloc(strlen(tmp)+1
+ strlen("env USER='' ")
+ strlen("env FD_SESS='' ")
+ strlen("env FD_GEOM='' /bin/sh ")
+ strlen(keep_unixpw_user) + 1
+ strlen("FD_GEOM='' ")
+ strlen("FD_SESS='' /bin/sh ")
+ strlen(uu) + 1
+ strlen(geom) + 1
+ strlen(xsess) + 1
+ strlen(opts) + 1);
sprintf(create_cmd, "env USER='%s' FD_GEOM='%s' FD_SESS='%s' /bin/sh %s %s",
keep_unixpw_user, geom, xsess, tmp, opts);
uu, geom, xsess, tmp, opts);
} else {
create_cmd = (char *) malloc(strlen(tmp)
+ strlen("/bin/sh ") + 1 + strlen(opts) + 1);
sprintf(create_cmd, "/bin/sh %s %s", tmp, opts);
}
if (db) fprintf(stderr, "create_cmd: %s\n", create_cmd);
}
cmd = (char *) malloc(strlen(tmp) + strlen("/bin/sh ") + 1);
sprintf(cmd, "/bin/sh %s", tmp);
if (unixpw && keep_unixpw_opts && keep_unixpw_opts[0] != '\0') {
char *q, *t = keep_unixpw_opts;
q = strstr(t, "nd=");
if (! q) q = strstr(t, "nodisplay=");
if (q) {
char *t2;
q = strchr(q, '=') + 1;
t = strdup(q);
q = t;
t2 = strchr(t, ',');
if (t2) *t2 = '\0';
while (*t != '\0') {
if (*t == '-') {
*t = ',';
}
t++;
}
if (!strchr(q, '\'')) {
if (! quiet) rfbLog("set X11VNC_SKIP_DISPLAY: %s\n", q);
nd = q;
}
}
}
cmd = (char *) malloc(strlen("env X11VNC_SKIP_DISPLAY='' ")
+ strlen(nd) + strlen(tmp) + strlen("/bin/sh ") + 1);
sprintf(cmd, "env X11VNC_SKIP_DISPLAY='%s' /bin/sh %s", nd, tmp);
}
rfbLog("wait_for_client: running: %s\n", cmd);
......@@ -1605,6 +1734,9 @@ if (db) fprintf(stderr, "create_cmd: %s\n", create_cmd);
}
if (db) {fprintf(stderr, "line: "); write(2, line, n); write(2, "\n", 1); fprintf(stderr, "res=%d n=%d\n", res, n);}
if (! res) {
rfbLog("wait_for_client: find display cmd failed\n");
}
if (! res && create_cmd) {
FILE *mt = fopen(tmp, "w");
......@@ -1702,7 +1834,22 @@ if (db) fprintf(stderr, "\n");
FILE *p;
int rc;
close_exec_fds();
p = popen(cmd, "r");
if (usslpeer) {
char *c;
if (getuid() == 0) {
c = (char *) malloc(strlen("su - '' -c \"")
+ strlen(usslpeer) + strlen(cmd) + 1 + 1);
sprintf(c, "su - '%s' -c \"%s\"", usslpeer, cmd);
} else {
c = strdup(cmd);
}
p = popen(c, "r");
free(c);
} else {
p = popen(cmd, "r");
}
if (! p) {
rfbLog("wait_for_client: cmd failed: %s\n", cmd);
rfbLogPerror("popen");
......@@ -1722,6 +1869,10 @@ if (db) fprintf(stderr, "\n");
n = fread(line2, 1, 16384, p);
rc = pclose(p);
if (rc != 0) {
rfbLog("wait_for_client: find display cmd failed\n");
}
if (create_cmd && rc != 0) {
FILE *mt = fopen(tmp, "w");
if (! mt) {
......@@ -1767,7 +1918,9 @@ if (db) fprintf(stderr, "line1=%s\n", line1);
if (strstr(line1, "DISPLAY=") != line1) {
rfbLog("wait_for_client: bad reply '%s'\n", line1);
unixpw_msg("No DISPLAY found.", 3);
if (unixpw) {
unixpw_msg("No DISPLAY found.", 3);
}
clean_up_exit(1);
}
......@@ -1849,7 +2002,17 @@ fprintf(stderr, "\n");}
}
}
if (users_list_save && keep_unixpw_user) {
if (usslpeer) {
char *u = (char *) malloc(strlen(usslpeer+2));
sprintf(u, "+%s", usslpeer);
if (switch_user(u, 0)) {
rfbLog("sslpeer switched to user: %s\n", usslpeer);
} else {
rfbLog("sslpeer failed to switch to user: %s\n", usslpeer);
}
free(u);
} else if (users_list_save && keep_unixpw_user) {
char *user = keep_unixpw_user;
char *u = (char *)malloc(strlen(user)+1);
......
x11vnc/x11vnc.1
View file @ 3fcab6f1
......@@ -2,7 +2,7 @@
.TH X11VNC "1" "April 2007" "x11vnc " "User Commands"
.SH NAME
x11vnc - allow VNC connections to real X11 displays
version: 0.9.1, lastmod: 2007-04-18
version: 0.9.1, lastmod: 2007-04-27
.SH SYNOPSIS
.B x11vnc
[OPTION]...
......@@ -1016,7 +1016,8 @@ It is used in the Apache SSL-portal example (see FAQ).
.IP
In this mode you can set X11VNC_SKIP_DISPLAY to a comma
separated list of displays (e.g. ":0,:1") to ignore
in the finding process.
in the finding process. This can also be set by the
user via "nd=" using "-" instead of ","
.IP
An interesting option is WAIT:cmd=FINDCREATEDISPLAY
that is like FINDDISPLAY in that is uses the same method
......@@ -1055,6 +1056,10 @@ on the machine. E.g. a desktop service:
.IP
Where /.../x11vnc is the full path to x11vnc.
.IP
If for some reason you do not want x11vnc to ever
try to find an existing display set the env. var
X11VNC_FINDDISPLAY_ALWAYS_FAILS=1 (also \fB-env\fR ...)
.IP
Use WAIT:cmd=FINDCREATEDISPLAY-print to print out the
script used. You can specify the preferred order via
e.g., WAIT:cmd=FINDCREATEDISPLAY-Xdummy,Xvfb,X and/or
......@@ -1866,6 +1871,28 @@ user as though "\fB-users\fR \fI+username\fR" had been supplied.
If you want to limit which users this will be done for,
provide them as a comma separated list after "unixpw="
.IP
Similarly, in \fB-ssl\fR mode, if "\fB-users\fR \fIsslpeer=\fR" is
supplied then after an SSL client authenticates with his
cert (the \fB-sslverify\fR option is required for this) x11vnc
will extract a UNIX username from the "emailAddress"
field (username@hostname.com) of the "Subject" in the
x509 SSL cert and then try to switch to that user as
though "\fB-users\fR \fI+username\fR" had been supplied. If you
want to limit which users this will be done for, provide
them as a comma separated list after "sslpeer=".
Set the env. var X11VNC_SSLPEER_CN to use the Common
Name (normally a hostname) instead of the Email field.
NOTE: the x11vnc administrator must take great care
that any client certs he adds to \fB-sslverify\fR have the
correct UNIX username in the "emailAddress" field
of the cert. Otherwise a user may be able to log in
as another. The following command can be of use in
checking: "openssl x509 \fB-text\fR \fB-in\fR file.crt", see the
"Subject:" line. Also, along with the normal RFB_*
env. vars. (see \fB-accept)\fR passed to external cmd=
commands, RFB_SSL_CLIENT_CERT will be set to the
client's x509 certificate string.
.IP
To immediately switch to a user *before* connections
to the X display are made or any files opened use the
"=" character: "\fB-users\fR \fI=bob\fR". That user needs to
......@@ -2552,6 +2579,8 @@ below the actual framebuffer to cache screen contents
for rapid retrieval. So a W x H frambuffer is expanded
to a W x (n+1)*H one. Use 0 to disable. Default: XXX.
.IP
The \fIn\fR is actually optional, the default is 10.
.IP
For this and the other \fB-ncache*\fR options below you can
abbreviate "\fB-ncache\fR" with "\fB-nc\fR". Also, "\fB-nonc\fR"
is the same as "\fB-ncache\fR \fI0\fR"
......
x11vnc/x11vnc.c
View file @ 3fcab6f1
......@@ -2248,8 +2248,17 @@ int main(int argc, char* argv[]) {
show_dragging = 0;
#ifndef NO_NCACHE
} else if (!strcmp(arg, "-ncache") || !strcmp(arg, "-nc")) {
CHECK_ARGC
ncache = atoi(argv[++i]);
if (i < argc-1) {
char *s = argv[i+1];
if (s[0] != '-') {
ncache = atoi(s);
i++;
} else {
ncache = ncache_default;
}
} else {
ncache = ncache_default;
}
if (ncache % 2 != 0) {
ncache++;
}
......
x11vnc/x11vnc_defs.c
View file @ 3fcab6f1
......@@ -15,7 +15,7 @@ int xtrap_base_event_type = 0;
int xdamage_base_event_type = 0;
/* date +'lastmod: %Y-%m-%d' */
char lastmod[] = "0.9.1 lastmod: 2007-04-18";
char lastmod[] = "0.9.1 lastmod: 2007-04-27";
/* X display info */
......
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