XVnc identifies connection that is being currently queried with queryConnectId
variable. That is void* actually containing pointer to TcpSocket allocated in
TcpListener::accept().
The lower 32 bits are given to client in ProcVncExtGetQueryConnect:
rep.opaqueId = (CARD32)(long)queryConnectId;
But in ProcVncExtApproveConnect the 32 bit number is converted to void* and
compared as pointer:
if (queryConnectId == (void*)stuff->opaqueId) {
In case of 64 bit system and when TcpSocket gets allocated on higher than
0xffffffff address, the condition will fail and XVnc will ignore the
connection approval.
---
Index: unix/xserver/hw/vnc/vncExtInit.cc
===================================================================
--- xserver/hw/vnc/vncExtInit.cc (revision 5122)
+++ xserver/hw/vnc/vncExtInit.cc (working copy)
@@ -1068,7 +1068,7 @@
{
REQUEST(xVncExtApproveConnectReq);
REQUEST_SIZE_MATCH(xVncExtApproveConnectReq);
- if (queryConnectId == (void*)stuff->opaqueId) {
+ if ((CARD32)(long)queryConnectId == stuff->opaqueId) {
for (int scr = 0; scr < screenInfo.numScreens; scr++) {
if (desktop[scr]) {
desktop[scr]->approveConnection(queryConnectId, stuff->approve,
------------------------------------------------------------------------------
Get your SQL database under version control now!
Version control is standard for application code, but databases havent
caught up. So what steps can you take to put your SQL databases under
version control? Why should you start doing it? Read more to find out.
http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk
_______________________________________________
Tigervnc-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/tigervnc-devel
