In some cases (bad font data) the coordinates evaluate to <0,
causing a segfault in the following memcpy().
[jes: keep the offset, but do not try to segfault]
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This fixes Debian Bug #399501:
Switch to tty1. Run "linuxvnc 1 -help". You see help text,
followed by "Segmentation fault".
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
It seems that vino does not send AuthOK when there is no password with
anonymous TLS, and it seems that vino is the only <3.8 VNC server that
handles anonymous TLS at all, so let's not wait for the packet that will
never come.
Signed-off-by: Vic Lee <llyzs@163.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
DIRECT: with an extra XFlush and other safety measures.
fflush(stderr) much in su_verify. Make the -unixpw env. vars
UNIXPW_DISABLE_SSL and UNIXPW_DISABLE_LOCALHOST work correctly.
Make -loopbg actually imply -bg.
entire desktop. map port + 5500 in reverse connect. Add id_cmd remote
control functions for id (and other) windows. Allow zero port in SSL
reverse connections. Adjust delays between multiple reverse connections;
X11VNC_REVERSE_SLEEP_MAX env var. Add some missing mutex locks; add
INPUT_LOCK and threads_drop_input. More safety in -threads mode for
new framebuffer change. Fix some stderr leaking in -inetd mode.
The return value now better reflects what has happened:
1 on success (incoming connection on listen socket, we
accepted it successfully), -1 on error, 0 on timeout.
Also change the select calls to not check _all_ possible
file descriptors.
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
To make this work, we also have to initialize sockets
to a default value of -1.
Also close a client listen socket if it's open.
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
fixes warning about closesocket being implicitly declared.
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
If rfbInitConnection fails, it cleans up the client, so protect against
doing it ourselves again.
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
As -listen mode isn't really working under UNIX and not at all under
windows, use -listennofork and an outer listen loop instead.
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Forking the whole process from deep within a library call does
not really work at all with apps that use multiple threads, i.e. every
reasonably modern GUI app. So, provide a non-forking listen function so
that the caller can decide if to fork, start a thread, etc.
This implementation adds a timeout parameter to be able to call the
listen function multiple times so that it's possible to do sth. else
in between, e.g. abort listening.
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
set the port to listen on and really ensure that the
window of the fork()ed instance is closed.
works somewhat: it's now actually possible to listen for an
incoming connection and to close it again, but the second
connection attempt fails with 'XIO: fatal IO error 11
(Resource temporarily unavailable)'. this could relate to the
fact that SDL uses threads internally and we're fork()ing
here...
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Actually, initSockets() has to be called everywhere we possibly
use sockets the first time.
Also fix return value of initSockets().
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
When working on a program which searches the display for some image, one
does not want to search again without getting an FB update. Add a
callback to make this possible.
On Windows, the WSA system needs to be initialized to be able to look up
host names.
This patch also changes *addr = 0 to use the constant INADDR_LOOPBACK
instead, which seems to be required on Windows.
SOCKET is redefined in winsock2.h so #undef it where winsock2.h
is included. The changes in rfbproto.c circumvent crosscompiler
errors like 'S_IFMT' undeclared ...', the Makefile.am changes
avoid building linux specific stuff for a win32 host target.
Also added configure option to specify sdl-config.
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
runge
Christian Beier
Vic Lee
Johannes Schindelin
Alexander Dorokhine