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Michael Jumper 2013-06-04 15:52:18 -07:00
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# Object code
*.o
*.so
*.lo
*.la
# Backup files
*~
# Release files
*.tar.gz
# Files currently being edited by vim or vi
*.swp
# automake/autoconf
.deps/
.libs/
Makefile
Makefile.in
aclocal.m4
autom4te.cache/
m4/*
!README
config.guess
config.log
config.status
config.sub
configure
depcomp
install-sh
libtool
ltmain.sh
missing

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Michael Jumper <zhangmaike@users.sourceforge.net>
James Muehlner <james.muehlner@guac-dev.org>
Saul Gio Perez <gio.perez@sv.cmu.edu>

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2013-05-23 James Muehlner <james.muehlner@guac-dev.org>
* convert() should return NULL only on malloc failure (fixes #313)
2013-02-07 Saul Gio Perez <gio.perez@sv.cmu.edu>
* Implement color-depth parameter (fixes #272)
2012-10-15 Michael Jumper <zhangmaike@users.sourceforge.net>
* Fix m4/ autoreconf error
2011-05-04 Michael Jumper <zhangmaike@users.sourceforge.net>
* Migrated to 0.6.0 version of libguac API
* Ensure LICENSE is included in source .tar.gz
* Add swap-red-blue parameter
2011-12-11 Michael Jumper <zhangmaike@users.sourceforge.net>
* Migrated to 0.5.0 version of libguac API
2011-03-13 Michael Jumper <zhangmaike@users.sourceforge.net>
* Support for framebuffer resizing
* "encodings" argument
2011-02-28 Michael Jumper <zhangmaike@users.sourceforge.net>
* Initial release

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MOZILLA PUBLIC LICENSE
Version 1.1
---------------
1. Definitions.
1.0.1. "Commercial Use" means distribution or otherwise making the
Covered Code available to a third party.
1.1. "Contributor" means each entity that creates or contributes to
the creation of Modifications.
1.2. "Contributor Version" means the combination of the Original
Code, prior Modifications used by a Contributor, and the Modifications
made by that particular Contributor.
1.3. "Covered Code" means the Original Code or Modifications or the
combination of the Original Code and Modifications, in each case
including portions thereof.
1.4. "Electronic Distribution Mechanism" means a mechanism generally
accepted in the software development community for the electronic
transfer of data.
1.5. "Executable" means Covered Code in any form other than Source
Code.
1.6. "Initial Developer" means the individual or entity identified
as the Initial Developer in the Source Code notice required by Exhibit
A.
1.7. "Larger Work" means a work which combines Covered Code or
portions thereof with code not governed by the terms of this License.
1.8. "License" means this document.
1.8.1. "Licensable" means having the right to grant, to the maximum
extent possible, whether at the time of the initial grant or
subsequently acquired, any and all of the rights conveyed herein.
1.9. "Modifications" means any addition to or deletion from the
substance or structure of either the Original Code or any previous
Modifications. When Covered Code is released as a series of files, a
Modification is:
A. Any addition to or deletion from the contents of a file
containing Original Code or previous Modifications.
B. Any new file that contains any part of the Original Code or
previous Modifications.
1.10. "Original Code" means Source Code of computer software code
which is described in the Source Code notice required by Exhibit A as
Original Code, and which, at the time of its release under this
License is not already Covered Code governed by this License.
1.10.1. "Patent Claims" means any patent claim(s), now owned or
hereafter acquired, including without limitation, method, process,
and apparatus claims, in any patent Licensable by grantor.
1.11. "Source Code" means the preferred form of the Covered Code for
making modifications to it, including all modules it contains, plus
any associated interface definition files, scripts used to control
compilation and installation of an Executable, or source code
differential comparisons against either the Original Code or another
well known, available Covered Code of the Contributor's choice. The
Source Code can be in a compressed or archival form, provided the
appropriate decompression or de-archiving software is widely available
for no charge.
1.12. "You" (or "Your") means an individual or a legal entity
exercising rights under, and complying with all of the terms of, this
License or a future version of this License issued under Section 6.1.
For legal entities, "You" includes any entity which controls, is
controlled by, or is under common control with You. For purposes of
this definition, "control" means (a) the power, direct or indirect,
to cause the direction or management of such entity, whether by
contract or otherwise, or (b) ownership of more than fifty percent
(50%) of the outstanding shares or beneficial ownership of such
entity.
2. Source Code License.
2.1. The Initial Developer Grant.
The Initial Developer hereby grants You a world-wide, royalty-free,
non-exclusive license, subject to third party intellectual property
claims:
(a) under intellectual property rights (other than patent or
trademark) Licensable by Initial Developer to use, reproduce,
modify, display, perform, sublicense and distribute the Original
Code (or portions thereof) with or without Modifications, and/or
as part of a Larger Work; and
(b) under Patents Claims infringed by the making, using or
selling of Original Code, to make, have made, use, practice,
sell, and offer for sale, and/or otherwise dispose of the
Original Code (or portions thereof).
(c) the licenses granted in this Section 2.1(a) and (b) are
effective on the date Initial Developer first distributes
Original Code under the terms of this License.
(d) Notwithstanding Section 2.1(b) above, no patent license is
granted: 1) for code that You delete from the Original Code; 2)
separate from the Original Code; or 3) for infringements caused
by: i) the modification of the Original Code or ii) the
combination of the Original Code with other software or devices.
2.2. Contributor Grant.
Subject to third party intellectual property claims, each Contributor
hereby grants You a world-wide, royalty-free, non-exclusive license
(a) under intellectual property rights (other than patent or
trademark) Licensable by Contributor, to use, reproduce, modify,
display, perform, sublicense and distribute the Modifications
created by such Contributor (or portions thereof) either on an
unmodified basis, with other Modifications, as Covered Code
and/or as part of a Larger Work; and
(b) under Patent Claims infringed by the making, using, or
selling of Modifications made by that Contributor either alone
and/or in combination with its Contributor Version (or portions
of such combination), to make, use, sell, offer for sale, have
made, and/or otherwise dispose of: 1) Modifications made by that
Contributor (or portions thereof); and 2) the combination of
Modifications made by that Contributor with its Contributor
Version (or portions of such combination).
(c) the licenses granted in Sections 2.2(a) and 2.2(b) are
effective on the date Contributor first makes Commercial Use of
the Covered Code.
(d) Notwithstanding Section 2.2(b) above, no patent license is
granted: 1) for any code that Contributor has deleted from the
Contributor Version; 2) separate from the Contributor Version;
3) for infringements caused by: i) third party modifications of
Contributor Version or ii) the combination of Modifications made
by that Contributor with other software (except as part of the
Contributor Version) or other devices; or 4) under Patent Claims
infringed by Covered Code in the absence of Modifications made by
that Contributor.
3. Distribution Obligations.
3.1. Application of License.
The Modifications which You create or to which You contribute are
governed by the terms of this License, including without limitation
Section 2.2. The Source Code version of Covered Code may be
distributed only under the terms of this License or a future version
of this License released under Section 6.1, and You must include a
copy of this License with every copy of the Source Code You
distribute. You may not offer or impose any terms on any Source Code
version that alters or restricts the applicable version of this
License or the recipients' rights hereunder. However, You may include
an additional document offering the additional rights described in
Section 3.5.
3.2. Availability of Source Code.
Any Modification which You create or to which You contribute must be
made available in Source Code form under the terms of this License
either on the same media as an Executable version or via an accepted
Electronic Distribution Mechanism to anyone to whom you made an
Executable version available; and if made available via Electronic
Distribution Mechanism, must remain available for at least twelve (12)
months after the date it initially became available, or at least six
(6) months after a subsequent version of that particular Modification
has been made available to such recipients. You are responsible for
ensuring that the Source Code version remains available even if the
Electronic Distribution Mechanism is maintained by a third party.
3.3. Description of Modifications.
You must cause all Covered Code to which You contribute to contain a
file documenting the changes You made to create that Covered Code and
the date of any change. You must include a prominent statement that
the Modification is derived, directly or indirectly, from Original
Code provided by the Initial Developer and including the name of the
Initial Developer in (a) the Source Code, and (b) in any notice in an
Executable version or related documentation in which You describe the
origin or ownership of the Covered Code.
3.4. Intellectual Property Matters
(a) Third Party Claims.
If Contributor has knowledge that a license under a third party's
intellectual property rights is required to exercise the rights
granted by such Contributor under Sections 2.1 or 2.2,
Contributor must include a text file with the Source Code
distribution titled "LEGAL" which describes the claim and the
party making the claim in sufficient detail that a recipient will
know whom to contact. If Contributor obtains such knowledge after
the Modification is made available as described in Section 3.2,
Contributor shall promptly modify the LEGAL file in all copies
Contributor makes available thereafter and shall take other steps
(such as notifying appropriate mailing lists or newsgroups)
reasonably calculated to inform those who received the Covered
Code that new knowledge has been obtained.
(b) Contributor APIs.
If Contributor's Modifications include an application programming
interface and Contributor has knowledge of patent licenses which
are reasonably necessary to implement that API, Contributor must
also include this information in the LEGAL file.
(c) Representations.
Contributor represents that, except as disclosed pursuant to
Section 3.4(a) above, Contributor believes that Contributor's
Modifications are Contributor's original creation(s) and/or
Contributor has sufficient rights to grant the rights conveyed by
this License.
3.5. Required Notices.
You must duplicate the notice in Exhibit A in each file of the Source
Code. If it is not possible to put such notice in a particular Source
Code file due to its structure, then You must include such notice in a
location (such as a relevant directory) where a user would be likely
to look for such a notice. If You created one or more Modification(s)
You may add your name as a Contributor to the notice described in
Exhibit A. You must also duplicate this License in any documentation
for the Source Code where You describe recipients' rights or ownership
rights relating to Covered Code. You may choose to offer, and to
charge a fee for, warranty, support, indemnity or liability
obligations to one or more recipients of Covered Code. However, You
may do so only on Your own behalf, and not on behalf of the Initial
Developer or any Contributor. You must make it absolutely clear than
any such warranty, support, indemnity or liability obligation is
offered by You alone, and You hereby agree to indemnify the Initial
Developer and every Contributor for any liability incurred by the
Initial Developer or such Contributor as a result of warranty,
support, indemnity or liability terms You offer.
3.6. Distribution of Executable Versions.
You may distribute Covered Code in Executable form only if the
requirements of Section 3.1-3.5 have been met for that Covered Code,
and if You include a notice stating that the Source Code version of
the Covered Code is available under the terms of this License,
including a description of how and where You have fulfilled the
obligations of Section 3.2. The notice must be conspicuously included
in any notice in an Executable version, related documentation or
collateral in which You describe recipients' rights relating to the
Covered Code. You may distribute the Executable version of Covered
Code or ownership rights under a license of Your choice, which may
contain terms different from this License, provided that You are in
compliance with the terms of this License and that the license for the
Executable version does not attempt to limit or alter the recipient's
rights in the Source Code version from the rights set forth in this
License. If You distribute the Executable version under a different
license You must make it absolutely clear that any terms which differ
from this License are offered by You alone, not by the Initial
Developer or any Contributor. You hereby agree to indemnify the
Initial Developer and every Contributor for any liability incurred by
the Initial Developer or such Contributor as a result of any such
terms You offer.
3.7. Larger Works.
You may create a Larger Work by combining Covered Code with other code
not governed by the terms of this License and distribute the Larger
Work as a single product. In such a case, You must make sure the
requirements of this License are fulfilled for the Covered Code.
4. Inability to Comply Due to Statute or Regulation.
If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Code due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description
must be included in the LEGAL file described in Section 3.4 and must
be included with all distributions of the Source Code. Except to the
extent prohibited by statute or regulation, such description must be
sufficiently detailed for a recipient of ordinary skill to be able to
understand it.
5. Application of this License.
This License applies to code to which the Initial Developer has
attached the notice in Exhibit A and to related Covered Code.
6. Versions of the License.
6.1. New Versions.
Netscape Communications Corporation ("Netscape") may publish revised
and/or new versions of the License from time to time. Each version
will be given a distinguishing version number.
6.2. Effect of New Versions.
Once Covered Code has been published under a particular version of the
License, You may always continue to use it under the terms of that
version. You may also choose to use such Covered Code under the terms
of any subsequent version of the License published by Netscape. No one
other than Netscape has the right to modify the terms applicable to
Covered Code created under this License.
6.3. Derivative Works.
If You create or use a modified version of this License (which you may
only do in order to apply it to code which is not already Covered Code
governed by this License), You must (a) rename Your license so that
the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape",
"MPL", "NPL" or any confusingly similar phrase do not appear in your
license (except to note that your license differs from this License)
and (b) otherwise make it clear that Your version of the license
contains terms which differ from the Mozilla Public License and
Netscape Public License. (Filling in the name of the Initial
Developer, Original Code or Contributor in the notice described in
Exhibit A shall not of themselves be deemed to be modifications of
this License.)
7. DISCLAIMER OF WARRANTY.
COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF
DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING.
THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE
IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT,
YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE
COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER
OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF
ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
8. TERMINATION.
8.1. This License and the rights granted hereunder will terminate
automatically if You fail to comply with terms herein and fail to cure
such breach within 30 days of becoming aware of the breach. All
sublicenses to the Covered Code which are properly granted shall
survive any termination of this License. Provisions which, by their
nature, must remain in effect beyond the termination of this License
shall survive.
8.2. If You initiate litigation by asserting a patent infringement
claim (excluding declatory judgment actions) against Initial Developer
or a Contributor (the Initial Developer or Contributor against whom
You file such action is referred to as "Participant") alleging that:
(a) such Participant's Contributor Version directly or indirectly
infringes any patent, then any and all rights granted by such
Participant to You under Sections 2.1 and/or 2.2 of this License
shall, upon 60 days notice from Participant terminate prospectively,
unless if within 60 days after receipt of notice You either: (i)
agree in writing to pay Participant a mutually agreeable reasonable
royalty for Your past and future use of Modifications made by such
Participant, or (ii) withdraw Your litigation claim with respect to
the Contributor Version against such Participant. If within 60 days
of notice, a reasonable royalty and payment arrangement are not
mutually agreed upon in writing by the parties or the litigation claim
is not withdrawn, the rights granted by Participant to You under
Sections 2.1 and/or 2.2 automatically terminate at the expiration of
the 60 day notice period specified above.
(b) any software, hardware, or device, other than such Participant's
Contributor Version, directly or indirectly infringes any patent, then
any rights granted to You by such Participant under Sections 2.1(b)
and 2.2(b) are revoked effective as of the date You first made, used,
sold, distributed, or had made, Modifications made by that
Participant.
8.3. If You assert a patent infringement claim against Participant
alleging that such Participant's Contributor Version directly or
indirectly infringes any patent where such claim is resolved (such as
by license or settlement) prior to the initiation of patent
infringement litigation, then the reasonable value of the licenses
granted by such Participant under Sections 2.1 or 2.2 shall be taken
into account in determining the amount or value of any payment or
license.
8.4. In the event of termination under Sections 8.1 or 8.2 above,
all end user license agreements (excluding distributors and resellers)
which have been validly granted by You or any distributor hereunder
prior to termination shall survive termination.
9. LIMITATION OF LIABILITY.
UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT
(INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL
DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE,
OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY
CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL,
WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER
COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN
INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF
LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY
RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW
PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE
EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO
THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU.
10. U.S. GOVERNMENT END USERS.
The Covered Code is a "commercial item," as that term is defined in
48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer
software" and "commercial computer software documentation," as such
terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48
C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995),
all U.S. Government End Users acquire Covered Code with only those
rights set forth herein.
11. MISCELLANEOUS.
This License represents the complete agreement concerning subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. This License shall be governed by
California law provisions (except to the extent applicable law, if
any, provides otherwise), excluding its conflict-of-law provisions.
With respect to disputes in which at least one party is a citizen of,
or an entity chartered or registered to do business in the United
States of America, any litigation relating to this License shall be
subject to the jurisdiction of the Federal Courts of the Northern
District of California, with venue lying in Santa Clara County,
California, with the losing party responsible for costs, including
without limitation, court costs and reasonable attorneys' fees and
expenses. The application of the United Nations Convention on
Contracts for the International Sale of Goods is expressly excluded.
Any law or regulation which provides that the language of a contract
shall be construed against the drafter shall not apply to this
License.
12. RESPONSIBILITY FOR CLAIMS.
As between Initial Developer and the Contributors, each party is
responsible for claims and damages arising, directly or indirectly,
out of its utilization of rights under this License and You agree to
work with Initial Developer and Contributors to distribute such
responsibility on an equitable basis. Nothing herein is intended or
shall be deemed to constitute any admission of liability.
13. MULTIPLE-LICENSED CODE.
Initial Developer may designate portions of the Covered Code as
"Multiple-Licensed". "Multiple-Licensed" means that the Initial
Developer permits you to utilize portions of the Covered Code under
Your choice of the NPL or the alternative licenses, if any, specified
by the Initial Developer in the file described in Exhibit A.
EXHIBIT A -Mozilla Public License.
``The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in
compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
License for the specific language governing rights and limitations
under the License.
The Original Code is ______________________________________.
The Initial Developer of the Original Code is ________________________.
Portions created by ______________________ are Copyright (C) ______
_______________________. All Rights Reserved.
Contributor(s): ______________________________________.
Alternatively, the contents of this file may be used under the terms
of the _____ license (the "[___] License"), in which case the
provisions of [______] License are applicable instead of those
above. If you wish to allow use of your version of this file only
under the terms of the [____] License and not to allow others to use
your version of this file under the MPL, indicate your decision by
deleting the provisions above and replace them with the notice and
other provisions required by the [___] License. If you do not delete
the provisions above, a recipient may use your version of this file
under either the MPL or the [___] License."
[NOTE: The text of this Exhibit A may differ slightly from the text of
the notices in the Source Code files of the Original Code. You should
use the text of this Exhibit A rather than the text found in the
Original Code Source Code for Your Modifications.]

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# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is libguac-client-vnc.
#
# The Initial Developer of the Original Code is
# Michael Jumper.
# Portions created by the Initial Developer are Copyright (C) 2010
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
AUTOMAKE_OPTIONS = foreign
ACLOCAL_AMFLAGS = -I m4
AM_CFLAGS = -Werror -Wall -pedantic -Iinclude
lib_LTLIBRARIES = libguac-client-vnc.la
libguac_client_vnc_la_SOURCES = src/client.c src/vnc_handlers.c src/guac_handlers.c src/convert.c
noinst_HEADERS = include/client.h include/vnc_handlers.h include/guac_handlers.h include/convert.h
libguac_client_vnc_la_LDFLAGS = -version-info 0:0:0
EXTRA_DIST = LICENSE

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------------------------------------------------------------
About this README
------------------------------------------------------------
This README is intended to provide quick and to-the-point documentation for
technical users intending to compile parts of Guacamole themselves.
Distribution-specific packages are available from the files section of the main
project page:
http://sourceforge.net/projects/guacamole/files/
Distribution-specific documentation is provided on the Guacamole wiki:
http://guac-dev.org/
------------------------------------------------------------
What is libguac-client-vnc?
------------------------------------------------------------
libguac-client-vnc is a protocol support plugin for the Guacamole proxy (guacd)
which provides support for VNC via the libvncclient library (part of
libvncserver).
------------------------------------------------------------
Compiling and installing libguac-client-vnc
------------------------------------------------------------
Please note that distribution-specific pre-compiled packages are available from
the files section of the main project site:
http://sourceforge.net/projects/guacamole/files/
libguac-client-vnc is built using the popular GNU Automake, and thus provides
the standard configure script.
1) Run configure
$ ./configure
Assuming all dependencies have been installed, this should succeed without
errors.
2) Run make
$ make
libguac-client-vnc will now compile.
3) Install (as root)
# make install
libguac-client-vnc will install to your /usr/local/lib directory by default.
You can change the install location by using the --prefix option for
configure.
You will need to run ldconfig (as root) so that guacd can find the library
when needed:
# ldconfig
------------------------------------------------------------
Reporting problems
------------------------------------------------------------
Please report any bugs encountered by opening a new ticket at the Trac system
hosted at:
http://guac-dev.org/trac/

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# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is libguac-client-vnc.
#
# The Initial Developer of the Original Code is
# Michael Jumper.
# Portions created by the Initial Developer are Copyright (C) 2010
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
AC_INIT(src/client.c)
AM_INIT_AUTOMAKE([libguac-client-vnc], 0.7.2)
AC_CONFIG_MACRO_DIR([m4])
# Checks for programs.
AC_PROG_CC
AC_PROG_LIBTOOL
# Checks for libraries.
AC_CHECK_LIB([guac], [guac_client_plugin_open],, AC_MSG_ERROR("libguac must be installed first"))
AC_CHECK_LIB([cairo], [cairo_create],, AC_MSG_ERROR("cairo is required for drawing instructions"))
AC_CHECK_LIB([vncclient], [rfbInitClient],, AC_MSG_ERROR("libvncclient is required"))
# Checks for header files.
AC_CHECK_HEADERS([stdlib.h string.h syslog.h guacamole/client.h guacamole/socket.h guacamole/protocol.h iconv.h])
# Checks for library functions.
AC_FUNC_MALLOC
AC_CONFIG_FILES([Makefile])
AC_OUTPUT

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libguac-client-vnc.
*
* The Initial Developer of the Original Code is
* Michael Jumper.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef __GUAC_VNC_CLIENT_H
#define __GUAC_VNC_CLIENT_H
#include <rfb/rfbclient.h>
extern char* __GUAC_CLIENT;
typedef struct vnc_guac_client_data {
rfbClient* rfb_client;
MallocFrameBufferProc rfb_MallocFrameBuffer;
int copy_rect_used;
char* password;
char* encodings;
int swap_red_blue;
guac_layer* cursor;
} vnc_guac_client_data;
#endif

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libguac-client-vnc.
*
* The Initial Developer of the Original Code is
* James Muehlner.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef __GUAC_VNC_VNC_CONVERT_H
#define __GUAC_VNC_VNC_CONVERT_H
#include <iconv.h>
/**
* Converts a string from one charset to another. Returns a newly allocated string.
* @param from_charset The string representing the character set to convert from.
* @param to_charset The string representing the character set to convert to.
* @return A newly allocated string that is the result of the conversion, or NULL
* if an error has occured.
*/
char* convert (const char* from_charset, const char* to_charset, const char* input);
#endif

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libguac-client-vnc.
*
* The Initial Developer of the Original Code is
* Michael Jumper.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef __GUAC_VNC_GUAC_HANDLERS_H
#define __GUAC_VNC_GUAC_HANDLERS_H
#include <guacamole/client.h>
int vnc_guac_client_handle_messages(guac_client* client);
int vnc_guac_client_mouse_handler(guac_client* client, int x, int y, int mask);
int vnc_guac_client_key_handler(guac_client* client, int keysym, int pressed);
int vnc_guac_client_clipboard_handler(guac_client* client, char* data);
int vnc_guac_client_free_handler(guac_client* client);
#endif

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libguac-client-vnc.
*
* The Initial Developer of the Original Code is
* Michael Jumper.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef __GUAC_VNC_VNC_HANDLERS_H
#define __GUAC_VNC_VNC_HANDLERS_H
#include <rfb/rfbclient.h>
void guac_vnc_cursor(rfbClient* client, int x, int y, int w, int h, int bpp);
void guac_vnc_update(rfbClient* client, int x, int y, int w, int h);
void guac_vnc_copyrect(rfbClient* client, int src_x, int src_y, int w, int h, int dest_x, int dest_y);
char* guac_vnc_get_password(rfbClient* client);
rfbBool guac_vnc_malloc_framebuffer(rfbClient* rfb_client);
void guac_vnc_cut_text(rfbClient* client, const char* text, int textlen);
void guac_vnc_client_log_info(const char* format, ...);
void guac_vnc_client_log_error(const char* format, ...);
void guac_vnc_set_pixel_format(rfbClient* client, int color_depth);
#endif

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This file exists such that the m4/ directory will be created when cloning the
git repository.
The m4/ directory is not directly used by this project, but libtoolize
populates this directory with files, recommending that the directory be
included in the macro search path for aclocal.
Because autoreconf runs aclocal before libtoolize, this directory will not
exist when autoreconf is run, triggering an error from aclocal.
Creating this directory (and keeping this file in it as a placeholder)
prevents this error.

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libguac-client-vnc.
*
* The Initial Developer of the Original Code is
* Michael Jumper.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include <stdlib.h>
#include <string.h>
#include <rfb/rfbclient.h>
#include <guacamole/socket.h>
#include <guacamole/protocol.h>
#include <guacamole/client.h>
#include "client.h"
#include "vnc_handlers.h"
#include "guac_handlers.h"
/* Client plugin arguments */
const char* GUAC_CLIENT_ARGS[] = {
"hostname",
"port",
"read-only",
"encodings",
"password",
"swap-red-blue",
"color-depth",
NULL
};
char* __GUAC_CLIENT = "GUAC_CLIENT";
int guac_client_init(guac_client* client, int argc, char** argv) {
rfbClient* rfb_client;
vnc_guac_client_data* guac_client_data;
int read_only;
/* Set up libvncclient logging */
rfbClientLog = guac_vnc_client_log_info;
rfbClientErr = guac_vnc_client_log_error;
/*** PARSE ARGUMENTS ***/
if (argc < 7) {
guac_protocol_send_error(client->socket, "Wrong argument count received.");
guac_socket_flush(client->socket);
return 1;
}
/* Alloc client data */
guac_client_data = malloc(sizeof(vnc_guac_client_data));
client->data = guac_client_data;
/* Set read-only flag */
read_only = (strcmp(argv[2], "true") == 0);
/* Set red/blue swap flag */
guac_client_data->swap_red_blue = (strcmp(argv[5], "true") == 0);
/* Freed after use by libvncclient */
guac_client_data->password = strdup(argv[4]);
/*** INIT RFB CLIENT ***/
rfb_client = rfbGetClient(8, 3, 4); /* 32-bpp client */
/* Store Guac client in rfb client */
rfbClientSetClientData(rfb_client, __GUAC_CLIENT, client);
/* Framebuffer update handler */
rfb_client->GotFrameBufferUpdate = guac_vnc_update;
rfb_client->GotCopyRect = guac_vnc_copyrect;
/* Do not handle clipboard and local cursor if read-only */
if (read_only == 0) {
/* Enable client-side cursor */
rfb_client->GotCursorShape = guac_vnc_cursor;
rfb_client->appData.useRemoteCursor = TRUE;
/* Clipboard */
rfb_client->GotXCutText = guac_vnc_cut_text;
}
/* Password */
rfb_client->GetPassword = guac_vnc_get_password;
/* Depth */
guac_vnc_set_pixel_format(rfb_client, atoi(argv[6]));
/* Hook into allocation so we can handle resize. */
guac_client_data->rfb_MallocFrameBuffer = rfb_client->MallocFrameBuffer;
rfb_client->MallocFrameBuffer = guac_vnc_malloc_framebuffer;
rfb_client->canHandleNewFBSize = 1;
/* Set hostname and port */
rfb_client->serverHost = strdup(argv[0]);
rfb_client->serverPort = atoi(argv[1]);
/* Set encodings if specified */
if (argv[3][0] != '\0')
rfb_client->appData.encodingsString = guac_client_data->encodings = strdup(argv[3]);
else
guac_client_data->encodings = NULL;
/* Connect */
if (!rfbInitClient(rfb_client, NULL, NULL)) {
guac_protocol_send_error(client->socket, "Error initializing VNC client");
guac_socket_flush(client->socket);
return 1;
}
/* Set remaining client data */
guac_client_data->rfb_client = rfb_client;
guac_client_data->copy_rect_used = 0;
guac_client_data->cursor = guac_client_alloc_buffer(client);
/* Set handlers */
client->handle_messages = vnc_guac_client_handle_messages;
client->free_handler = vnc_guac_client_free_handler;
if (read_only == 0) {
/* Do not handle mouse/keyboard/clipboard if read-only */
client->mouse_handler = vnc_guac_client_mouse_handler;
client->key_handler = vnc_guac_client_key_handler;
client->clipboard_handler = vnc_guac_client_clipboard_handler;
}
/* Send name */
guac_protocol_send_name(client->socket, rfb_client->desktopName);
/* Send size */
guac_protocol_send_size(client->socket,
GUAC_DEFAULT_LAYER, rfb_client->width, rfb_client->height);
return 0;
}

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libguac-client-vnc.
*
* The Initial Developer of the Original Code is
* James Muehlner.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include <stdlib.h>
#include <string.h>
#include <iconv.h>
#include <errno.h>
char* convert(const char* from_charset, const char* to_charset, const char* input) {
size_t input_remaining;
size_t output_remaining;
size_t bytes_converted = 0;
char* output;
char* output_buffer;
char* new_buffer;
char* input_buffer;
size_t output_length;
iconv_t cd;
cd = iconv_open(to_charset, from_charset);
if(cd == (iconv_t) -1)
/* Cannot convert due to invalid character set */
return NULL;
input_remaining = strlen(input);
input_buffer = (char*) input;
/* Start the output buffer the same size as the input buffer */
output_length = input_remaining;
/* Leave some space at the end for NULL terminator */
if (!(output = (char*) malloc(output_length + 4))) {
/* Cannot convert due to memory allocation error */
iconv_close(cd);
return NULL;
}
do {
output_buffer = output + bytes_converted;
output_remaining = output_length - bytes_converted;
bytes_converted = iconv(cd, &input_buffer,
&input_remaining, &output_buffer, &output_remaining);
if(bytes_converted == -1) {
if(errno == E2BIG) {
/* The output buffer is too small, so allocate more space */
bytes_converted = output_buffer - output;
output_length += input_remaining * 2 + 8;
if (!(new_buffer = (char*) realloc(output, output_length + 4))) {
/* Cannot convert due to memory allocation error */
iconv_close(cd);
free(output);
return NULL;
}
output = new_buffer;
output_buffer = output + bytes_converted;
}
else if (errno == EILSEQ) {
/* Invalid sequence detected, return what's been converted so far */
break;
}
else if (errno == EINVAL) {
/* Incomplete sequence detected, can be ignored */
break;
}
}
} while (input_remaining);
/* Flush the iconv conversion */
iconv(cd, NULL, NULL, &output_buffer, &output_remaining);
iconv_close(cd);
/* Add the NULL terminator */
memset(output_buffer, 0, 4);
return output;
}

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libguac-client-vnc.
*
* The Initial Developer of the Original Code is
* Michael Jumper.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <iconv.h>
#include <rfb/rfbclient.h>
#include <guacamole/client.h>
#include "client.h"
#include "convert.h"
int vnc_guac_client_handle_messages(guac_client* client) {
int wait_result;
rfbClient* rfb_client = ((vnc_guac_client_data*) client->data)->rfb_client;
wait_result = WaitForMessage(rfb_client, 1000000);
if (wait_result < 0) {
guac_client_log_error(client, "Error waiting for VNC server message\n");
return 1;
}
if (wait_result > 0) {
if (!HandleRFBServerMessage(rfb_client)) {
guac_client_log_error(client, "Error handling VNC server message\n");
return 1;
}
}
return 0;
}
int vnc_guac_client_mouse_handler(guac_client* client, int x, int y, int mask) {
rfbClient* rfb_client = ((vnc_guac_client_data*) client->data)->rfb_client;
SendPointerEvent(rfb_client, x, y, mask);
return 0;
}
int vnc_guac_client_key_handler(guac_client* client, int keysym, int pressed) {
rfbClient* rfb_client = ((vnc_guac_client_data*) client->data)->rfb_client;
SendKeyEvent(rfb_client, keysym, pressed);
return 0;
}
int vnc_guac_client_clipboard_handler(guac_client* client, char* data) {
rfbClient* rfb_client = ((vnc_guac_client_data*) client->data)->rfb_client;
/* Convert UTF-8 character data to ISO_8859-1 */
# if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) || __GLIBC__ > 2 || _LIBICONV_VERSION >= 0x0105
char* iso_8559_1_data = convert("UTF-8", "ISO_8859-1//TRANSLIT", data);
#else
char* iso_8559_1_data = convert("UTF-8", "ISO_8859-1", data);
#endif
/* If the conversion was successful, send the converted character data. */
if(iso_8559_1_data) {
SendClientCutText(rfb_client, iso_8559_1_data, strlen(iso_8559_1_data));
free(iso_8559_1_data);
/* Otherwise, just send an empty string. */
}
else
SendClientCutText(rfb_client, "", 0);
return 0;
}
int vnc_guac_client_free_handler(guac_client* client) {
vnc_guac_client_data* guac_client_data = (vnc_guac_client_data*) client->data;
rfbClient* rfb_client = guac_client_data->rfb_client;
/* Free encodings string, if used */
if (guac_client_data->encodings != NULL)
free(guac_client_data->encodings);
/* Free generic data struct */
free(client->data);
/* Free memory not free'd by libvncclient's rfbClientCleanup() */
if (rfb_client->frameBuffer != NULL) free(rfb_client->frameBuffer);
if (rfb_client->raw_buffer != NULL) free(rfb_client->raw_buffer);
if (rfb_client->rcSource != NULL) free(rfb_client->rcSource);
/* Free VNC rfbClientData linked list (not free'd by rfbClientCleanup()) */
while (rfb_client->clientData != NULL) {
rfbClientData* next = rfb_client->clientData->next;
free(rfb_client->clientData);
rfb_client->clientData = next;
}
/* Clean up VNC client*/
rfbClientCleanup(rfb_client);
return 0;
}

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is libguac-client-vnc.
*
* The Initial Developer of the Original Code is
* Michael Jumper.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include <stdlib.h>
#include <time.h>
#include <syslog.h>
#include <iconv.h>
#include <cairo/cairo.h>
#include <rfb/rfbclient.h>
#include <guacamole/socket.h>
#include <guacamole/protocol.h>
#include <guacamole/client.h>
#include "client.h"
#include "convert.h"
void guac_vnc_cursor(rfbClient* client, int x, int y, int w, int h, int bpp) {
guac_client* gc = rfbClientGetClientData(client, __GUAC_CLIENT);
guac_socket* socket = gc->socket;
vnc_guac_client_data* guac_client_data = (vnc_guac_client_data*) gc->data;
const guac_layer* cursor_layer = guac_client_data->cursor;
/* Cairo image buffer */
int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, w);
unsigned char* buffer = malloc(h*stride);
unsigned char* buffer_row_current = buffer;
cairo_surface_t* surface;
/* VNC image buffer */
unsigned int fb_stride = bpp * w;
unsigned char* fb_row_current = client->rcSource;
unsigned char* fb_mask = client->rcMask;
int dx, dy;
/* Copy image data from VNC client to RGBA buffer */
for (dy = 0; dy<h; dy++) {
unsigned int* buffer_current;
unsigned char* fb_current;
/* Get current buffer row, advance to next */
buffer_current = (unsigned int*) buffer_row_current;
buffer_row_current += stride;
/* Get current framebuffer row, advance to next */
fb_current = fb_row_current;
fb_row_current += fb_stride;
for (dx = 0; dx<w; dx++) {
unsigned char alpha, red, green, blue;
unsigned int v;
/* Read current pixel value */
switch (bpp) {
case 4:
v = *((unsigned int*) fb_current);
break;
case 2:
v = *((unsigned short*) fb_current);
break;
default:
v = *((unsigned char*) fb_current);
}
/* Translate mask to alpha */
if (*(fb_mask++)) alpha = 0xFF;
else alpha = 0x00;
/* Translate value to RGB */
red = (v >> client->format.redShift) * 0x100 / (client->format.redMax + 1);
green = (v >> client->format.greenShift) * 0x100 / (client->format.greenMax+ 1);
blue = (v >> client->format.blueShift) * 0x100 / (client->format.blueMax + 1);
/* Output ARGB */
if (guac_client_data->swap_red_blue)
*(buffer_current++) = (alpha << 24) | (blue << 16) | (green << 8) | red;
else
*(buffer_current++) = (alpha << 24) | (red << 16) | (green << 8) | blue;
/* Next VNC pixel */
fb_current += bpp;
}
}
/* Send cursor data*/
surface = cairo_image_surface_create_for_data(buffer, CAIRO_FORMAT_ARGB32, w, h, stride);
guac_protocol_send_png(socket,
GUAC_COMP_SRC, cursor_layer, 0, 0, surface);
/* Update cursor */
guac_protocol_send_cursor(socket, x, y, cursor_layer, 0, 0, w, h);
/* Free surface */
cairo_surface_destroy(surface);
free(buffer);
/* libvncclient does not free rcMask as it does rcSource */
free(client->rcMask);
}
void guac_vnc_update(rfbClient* client, int x, int y, int w, int h) {
guac_client* gc = rfbClientGetClientData(client, __GUAC_CLIENT);
vnc_guac_client_data* guac_client_data = (vnc_guac_client_data*) gc->data;
guac_socket* socket = gc->socket;
int dx, dy;
/* Cairo image buffer */
int stride;
unsigned char* buffer;
unsigned char* buffer_row_current;
cairo_surface_t* surface;
/* VNC framebuffer */
unsigned int bpp;
unsigned int fb_stride;
unsigned char* fb_row_current;
/* Ignore extra update if already handled by copyrect */
if (guac_client_data->copy_rect_used) {
guac_client_data->copy_rect_used = 0;
return;
}
/* Init Cairo buffer */
stride = cairo_format_stride_for_width(CAIRO_FORMAT_RGB24, w);
buffer = malloc(h*stride);
buffer_row_current = buffer;
bpp = client->format.bitsPerPixel/8;
fb_stride = bpp * client->width;
fb_row_current = client->frameBuffer + (y * fb_stride) + (x * bpp);
/* Copy image data from VNC client to PNG */
for (dy = y; dy<y+h; dy++) {
unsigned int* buffer_current;
unsigned char* fb_current;
/* Get current buffer row, advance to next */
buffer_current = (unsigned int*) buffer_row_current;
buffer_row_current += stride;
/* Get current framebuffer row, advance to next */
fb_current = fb_row_current;
fb_row_current += fb_stride;
for (dx = x; dx<x+w; dx++) {
unsigned char red, green, blue;
unsigned int v;
switch (bpp) {
case 4:
v = *((unsigned int*) fb_current);
break;
case 2:
v = *((unsigned short*) fb_current);
break;
default:
v = *((unsigned char*) fb_current);
}
/* Translate value to RGB */
red = (v >> client->format.redShift) * 0x100 / (client->format.redMax + 1);
green = (v >> client->format.greenShift) * 0x100 / (client->format.greenMax+ 1);
blue = (v >> client->format.blueShift) * 0x100 / (client->format.blueMax + 1);
/* Output RGB */
if (guac_client_data->swap_red_blue)
*(buffer_current++) = (blue << 16) | (green << 8) | red;
else
*(buffer_current++) = (red << 16) | (green << 8) | blue;
fb_current += bpp;
}
}
/* For now, only use default layer */
surface = cairo_image_surface_create_for_data(buffer, CAIRO_FORMAT_RGB24, w, h, stride);
guac_protocol_send_png(socket, GUAC_COMP_OVER, GUAC_DEFAULT_LAYER, x, y, surface);
/* Free surface */
cairo_surface_destroy(surface);
free(buffer);
}
void guac_vnc_copyrect(rfbClient* client, int src_x, int src_y, int w, int h, int dest_x, int dest_y) {
guac_client* gc = rfbClientGetClientData(client, __GUAC_CLIENT);
guac_socket* socket = gc->socket;
/* For now, only use default layer */
guac_protocol_send_copy(socket,
GUAC_DEFAULT_LAYER, src_x, src_y, w, h,
GUAC_COMP_OVER, GUAC_DEFAULT_LAYER, dest_x, dest_y);
((vnc_guac_client_data*) gc->data)->copy_rect_used = 1;
}
char* guac_vnc_get_password(rfbClient* client) {
guac_client* gc = rfbClientGetClientData(client, __GUAC_CLIENT);
return ((vnc_guac_client_data*) gc->data)->password;
}
void guac_vnc_set_pixel_format(rfbClient* client, int color_depth) {
switch(color_depth) {
case 8:
client->format.depth = 8;
client->format.bitsPerPixel = 8;
client->format.blueShift = 6;
client->format.redShift = 0;
client->format.greenShift = 3;
client->format.blueMax = 3;
client->format.redMax = 7;
client->format.greenMax = 7;
break;
case 16:
client->format.depth = 16;
client->format.bitsPerPixel = 16;
client->format.blueShift = 0;
client->format.redShift = 11;
client->format.greenShift = 5;
client->format.blueMax = 0x1f;
client->format.redMax = 0x1f;
client->format.greenMax = 0x3f;
break;
case 24:
case 32:
default:
client->format.depth = 24;
client->format.bitsPerPixel = 32;
client->format.blueShift = 0;
client->format.redShift = 16;
client->format.greenShift = 8;
client->format.blueMax = 0xff;
client->format.redMax = 0xff;
client->format.greenMax = 0xff;
}
}
rfbBool guac_vnc_malloc_framebuffer(rfbClient* rfb_client) {
guac_client* gc = rfbClientGetClientData(rfb_client, __GUAC_CLIENT);
vnc_guac_client_data* guac_client_data = (vnc_guac_client_data*) gc->data;
/* Send new size */
guac_protocol_send_size(gc->socket,
GUAC_DEFAULT_LAYER, rfb_client->width, rfb_client->height);
/* Use original, wrapped proc */
return guac_client_data->rfb_MallocFrameBuffer(rfb_client);
}
void guac_vnc_cut_text(rfbClient* client, const char* text, int textlen) {
guac_client* gc = rfbClientGetClientData(client, __GUAC_CLIENT);
guac_socket* socket = gc->socket;
/* Convert ASCII character data to UTF-8 */
char* utf8_text = convert("ISO_8859-1", "UTF-8", text);
guac_protocol_send_clipboard(socket, utf8_text);
free(utf8_text);
}
void guac_vnc_client_log_info(const char* format, ...) {
va_list args;
va_start(args, format);
vsyslog(LOG_INFO, format, args);
va_end(args);
}
void guac_vnc_client_log_error(const char* format, ...) {
va_list args;
va_start(args, format);
vsyslog(LOG_ERR, format, args);
va_end(args);
}