xlockmore-5.22: the maintained version of xlock
see docs/Revisions for more version stuff
see docs/TODO for stuff to do :)
Help is always appreciated too ;) .
Primary site: ftp://ftp.tux.org/pub/people/david-bagley/xlockmore
Secondary site: ftp://ftp.x.org/contrib/applications
Web page: http://www.tux.org/~bagleyd/xlockmore.html
Maintainer: David A. Bagley <bagleyd@tux.org>
Mailman lists: http://www.tux.org/mailman/listinfo
If you are interested in contributing to XLock development and/or maintenance
or just want to be notified when the latest stable version comes out.
choices brief description
------- -----------------
xlock-announce Xlock beta and production announcements
xlock-develop Xlock alpha ("daily") release announcements
xlock-discuss Xlock/Xlockmore development discussion
Please send all bug reports to bagleyd@tux.org .
Alpha versions may be available through web page or primary ftp site.
Adapted from Patrick J. Naughton's original xlock, with lots of help
from others.
How to build?
-------------
An ANSI C compiler is required for build.
motif (and editres) are used to build xmlock and are not used in xlock.
Check below to see if your machine is one mentioned that causes
problems, otherwise it should be easy. Just to be safe after installing
test it with something like: `/usr/local/bin/xlock -debug -verbose`
If you installed this before you may want to back up your XLock.ad file
if you made changes, since `make install` will overwrite this.
There are 3 ways to build:
configure:
`configure --help` to see options.
configure ; make ; make install
For Linux and others you may want something like:
configure --prefix=/usr/X11R6 ; make ; make install
that way it will install it in /usr/X11R6 not /usr/local
For Suns you may want:
configure --prefix=/usr/openwin ; make ; make install
imake:
Sometimes this is not setup correctly by the distributor ... i.e. not
my fault. You may want to do these quick edits to the iconfig.h so you
have more capabilities:
Do you have XPM? If so, uncomment "#define XpmLibrary".
Do you have OpenGL or Mesa? If so, uncomment "#define GLLibrary".
Do you have CDE? If so, uncomment "#define DtSaverLibrary".
Do you have RPLAY? If so, uncomment "#define RplayLibrary".
Do you have NAS? If so, uncomment "#define NasLibrary".
Do you have Motif? If so, uncomment "#define XmLibrary".
Examine iconfig.h for other optional capabilities.
xmkmf ; make Makefiles ; make depend ; make ; make install
or
xmkmf -a ; make ; make install
make.com:
See VMS below.
Note to binary redistributors:
-----------------------------
Probably should not distribute with any library requirements
(except possibly XPM, unless you statically link them in
and with USE_BOMB since it might not run right if you do not know
if your users will use xdm or not. For example:
configure --without-xpm --without-opengl --without-mesa
--without-dtsaver --without-rplay --without-nas --disable-bomb; make
You may want to distribute it with the xlock/XLock.ad file with "XLock."
instances replaced with "*". On Sun's, I need it to override the system
XLock.ad file.
Please let me know if there are other concerns.
Likely Problems
---------------
Make sure you use the new XLock.ad resource file (or at least remove the
old one) otherwise several modes will not be set up nicely. This is
usually put as a file in $HOME/XLock and/or
$WHEREVER_X11_IS_LOADED/lib/X11/app-defaults/XLock .
"Key: " this usually means you should get your administrator to setuid
xlock to root or at least setgid xlock to shadow. If you do not have
a friendly administrator it is asking for a key (password) that it will
save encrypted your $HOME/.xlockrc file.
Debugging options I use frequently:
xlock -debug -verbose -erasemode no_fade -duration 2 -sequential
AIX (IBM RS6000)
AIX's "make":
AIX's "make" can not handle "+=" so if you use the iconfig.h, you
have to group all your DEFINES into one long line and use "="
instead. GNU's "make" solves this problem.
AIX 3.1 and less:
it SHOULD compile automatically with -DLESS_THAN_AIX3_2 using the
iconfig.h, since the passwd struct is not available.
AIX 3.2 and greater:
one must have setuid xlock to root if you want to use it
without being root.
su - root
chown root xlock
chmod u+s xlock
chmod og+rx xlock
AFS users:
See iconfig.h, grep on "AFS".
Some machines have an alternate password shadowing method, if someone
figures it out mail me the patch.
AIX with DCE you will need "-ls" among the XLOCKLIBS.
Alpha-OSF/1 (Digital Equipment Corp)
Enhanced security:
Compile with -DOSF1_ENH_SEC see iconfig.h
chown auth.auth xlock
chmod 2755 xlock
Unfortunately the following is reportedly broken since xlockmore-2.10
and needs a patch, I heard it produces the following at runtime.
Unaligned access pid=1767 <xlock> va=140489e24 pc=3ff807d9978 ra=3ff807d9880
type=ldq
Segmentation fault (core dumped)
Apollo (HP)
Shift-Control-Break is caught. See HP.
CDE (DT) Common Desktop Environment.
Go to the CDE DT CONFIG SECTION of the
iconfig.h and uncomment (should be autodetected if you use configure)
XCOMM #define DtSaverLibrary
Here's what it does:
The DT screensaver is part of the dtwm window manager and what it does
is create a full-screen-sized window for each screen of your display.
This is different from other screen savers which use virtual roots.
What the DTSAVER option does is basically call a DT routine that
returns the id's of the windows it creates for the screensaver. Then
xlockmore will use these windows to display its stuff.
DT has a program where you can select your screensaver modes (or
screen saver programs), ala xmlock, and set your screensaver settings.
It also creates a small window where if you select a particular mode
it will run the screen saver and display it on that small window.
Here's how to set it up on your home directory.
cp etc/dtprofile $HOME/.dtprofile
This uses a ksh syntax. If your shell is csh or other change it
accordingly.
cp etc/dtscreen.dt $HOME/.dt/types
The actions points to /usr/remote so you may want to change this.
After this you need to completely logout from your CDE session and log
back in so it will read the .dtprofile. (If you just modify the actions
in dtscreen.dt you don't need to log out; you can simply restart your
dtwm.)
Here's how to set it up on your system.
edit /usr/dt/bin/Xsession DTSCREENSAVERLIST to contain the
DTSCREENSAVERLIST stuff in etc/dtprofile
cp etc/dtscreen.dt /usr/dt/appconfig/types/C/dtscreen.dt
The disadvantage to the above is some features of xlock are absent,
in particular, the logout lab feature. This version of xlock does not
hava a drop in replacement for the Screen Style Manager. Here is a
work around on Solaris in 3 patches:
1. Take out Screen option.
2. Put in /usr/local/bin/xlock as the default locker.
3. Turn off the default DT locking mechanism.
*** /usr/dt/app-defaults/C/Dtstyle.orig Fri Apr 12 11:53:00 1996
--- /usr/dt/app-defaults/C/Dtstyle Thu Jul 24 09:47:34 1997
***************
*** 24,30 ****
!# Do not translate the following
!###
!# componentList specifies the buttons that appear in the Style Manager.
! Dtstyle*componentList: Color Font Backdrop Keyboard Mouse Beep Screen Dtwm Startup
!# The Style Manager may be oriented vertically by commenting out this line
Dtstyle*mainRC.orientation: HORIZONTAL
--- 24,31 ----
!# Do not translate the following
!###
!# componentList specifies the buttons that appear in the Style Manager.
! !#Dtstyle*componentList: Color Font Backdrop Keyboard Mouse Beep Screen Dtwm Startup
! Dtstyle*componentList: Color Font Backdrop Keyboard Mouse Beep Dtwm Startup
!# The Style Manager may be oriented vertically by commenting out this line
Dtstyle*mainRC.orientation: HORIZONTAL
*** /usr/dt/appconfig/types/C/dt.dt.orig Fri Apr 12 11:53:28 1996
--- /usr/dt/appconfig/types/C/dt.dt Thu Jul 24 11:32:21 1997
***************
*** 226,235 ****
ACTION LockDisplay
{
LABEL LockDisplay
! TYPE TT_MSG
! TT_CLASS TT_REQUEST
! TT_SCOPE TT_SESSION
! TT_OPERATION Display_Lock
DESCRIPTION The LockDisplay action locks the workstation. \
You must know the user's or root password to \
unlock the workstation.
--- 226,239 ----
ACTION LockDisplay
{
LABEL LockDisplay
! # TYPE TT_MSG
! # TT_CLASS TT_REQUEST
! # TT_SCOPE TT_SESSION
! # TT_OPERATION Display_Lock
! TYPE COMMAND
! ARG_COUNT 0
! WINDOW_TYPE NO_STDIO
! EXEC_STRING /usr/local/bin/xlock
DESCRIPTION The LockDisplay action locks the workstation. \
You must know the user's or root password to \
unlock the workstation.
*** /usr/dt/config/C/sys.resources.orig Fri Apr 12 11:53:15 1996
--- /usr/dt/config/C/sys.resources Thu Jul 24 11:33:57 1997
***************
*** 82,88 ****
dtsession*saverTimeout: 10
! dtsession*lockTimeout: 30
dtsession*cycleTimeout: 3
dtsession*saverList: StartDtscreenBlank
--- 82,89 ----
dtsession*saverTimeout: 10
! !#dtsession*lockTimeout: 30
! dtsession*lockTimeout: 0
dtsession*cycleTimeout: 3
dtsession*saverList: StartDtscreenBlank
Using xlock from the dtwm front panel
(from Sun Infodoc ID 13527 available from http://sunsolve.sun.com)
--------------------------------------------------------------------
First the easy way (This is to overwrite the default CDE action)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. Run dtcreate
2. Create an action called LockDisplay
3. Set the "Command when action is opened" field to:
/usr/openwin/bin/xlock
4. Set the "Window Type" field to No Output.
5. Save the file ==> this creates a LockDisplay.dt in ~/.dt/types
6. Reload the action.
This will help you to bring up xlock when you are using lock in the
front panel.
Second way (another way to use action)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. Create a new action for your desktop. We'll call it Xlock.
2. Tell the desktop about the new action and then test it.
3. Modify the front panel so that it will call your new
action, Xlock, instead of the old action, LockDisplay.
1. CREATING A NEW ACTION:
- cd to ~/.dt/types and create a file called Xlock.dt.
- Add the following action definition to this file.
ACTION Xlock
{
LABEL Xlock
ARG_COUNT 0
TYPE COMMAND
WINDOW_TYPE NO_STDIO
EXEC_STRING /usr/openwin/bin/xlock
DESCRIPTION xlock
}
- This action definition defines an action called "Xlock".
When the action is called, it will execute xlock by
calling /usr/openwin/bin/xlock.
2. TELLING THE DESKTOP ABOUT THE NEW ACTION AND TESTING IT:
- Now that we have defined the new Xlock action, we need to
first tell the desktop about it and then test it.
- To tell the desktop about the new action bring up
the "Application Manager". You can do this by selecting
it from the front panel.
- From the Application Manager, select "Desktop_Tools"
- Now, select "Reload Actions".
- At this point, the desktop knows about the new Xlock action.
To test it, type "dtaction Xlock". Xlock should start up.
3. ADDING THE NEW ACTION TO THE FRONT PANEL:
- copy the dtwm front panel configuration file, dtwm.fp, from
/opt/CDE/appconfig/types/C directory to your personal dt
directory "~/.dt/types" directory.
- cd to ~/.dt/types
- From here, edit the dtwm.fp
- Search for Lock. You should see something like:
CONTROL Lock
{
TYPE icon
CONTAINER_NAME Switch
CONTAINER_TYPE SWITCH
POSITION_HINTS 1
ICON Fplock
LABEL Lock
PUSH_ACTION LockDisplay
HELP_TOPIC FPOnItemLock
HELP_VOLUME FPanel
}
- When you press the lock icon on the front panel, it calls
the action LockDisplay. The above paragraph is the definition
for that front panel lock icon.
- To get the front panel lock icon to call the action we
just defined, Xlock, instead of the LockDisplay action, all
you need do is change the PUSH_ACTION line from
"LockDisplay" to "Xlock".
CONTROL Lock
{
TYPE icon
CONTAINER_NAME Switch
CONTAINER_TYPE SWITCH
POSITION_HINTS 1
ICON Fplock
LABEL Lock
PUSH_ACTION Xlock
HELP_TOPIC FPOnItemLock
HELP_VOLUME FPanel
}
- Note: You might change the Label field to Xlock and you
might remove the HELP_TOPIC and HELP_VOLUME fields, but this
modification is not necessary.
- Now tell the window manger to reread the configuration
files. You do this by selecting "Restart Workspace Manager..."
from your workspace menu.
- Press the lock icon on the front panel...xlock should be
called. If not, make sure your DTDATABASESEARCHPATH
environment variable contains $HOME/.dt/types.
--------------------------------------------------------------------
Cygwin32:
Build like this:
CFLAGS="-O2 -m486 -Wall" CXXFLAGS="-O2 -m486 -Wall"\
./configure --prefix=/usr/X11R6 --disable-allow-root --disable-bomb\
--enable-unstable --enable-orig-xpm-patch --enable-xlockrc\
--enable-def-play="cat > /dev/dsp < "
Not done: text3d (sound is better with wav files)
DCE authentication (tested only on HP's)
See iconfig.h (xmkmf) or modes/Makefile.in (configure).
Digital Unix
Reported that 3.2D (8bpp) password screen color map gets messed up
sometimes when in random mode as it switches from one mode to another.
ESIX
Similar to Solaris2.x. You will need a -DSVR4 to compile.
chmod 440 /etc/shadow
if you get libX11.so.xxx not found
link with the static versions of the X libraries
chmod 2755 xlock
FreeBSD
One may have to setuid xlock to root (are there any objections?).
Also see "XFree86" if applicable.
HP
Shift-Control-Break is caught. This uses a library Xhp11 that may
not exist on some systems. Comment out
XHPDisableReset(dsp);
and
XHPEnableReset(dsp);
in "xlock.c" if you do not have this library.
May have to setuid xlock to root.
The optimizer may break in xlock/ .
HP's "make":
HP's "make" can not handle "+=" so if you use the iconfig.h, you
have to group all your DEFINES into one long line and use "="
instead. GNU's "make" solves this problem.
HP-UX with Secured Passwords:
Compile with -DHPUX_SECURE_PASSWD and setuid xlock to root.
HP-UX with Passwd Etc:
Compile with -DHP_PASSWDETC .
Link with -lrgy -lnck -lndbm .
This is insecure so make sure you know this by having you go to the
code to enable it.
Calls to XSetScreenSaver when using CDE (i.e. not called with -dtsaver)
are not supported. This can cause a disruption in the rpc ttdbserver
system resulting in the CDE lock and exit buttons to fail, 5 to 50%
of the time. I am told this will not be fixed by HP, only documented.
The only supported method of doing this stuff is via dtstyle.
configure --without-editres if configure gets tripped up
I found on my system -g -O trips up on life.c and shape.c ... so just
have one or the other.
IRIX (SGI)
OpenGL works but may be a little flaky.
Add this to the Makefile.
-DglGenTextures=glGenTexturesEXT\
-DglDeleteTextures=glDeleteTexturesEXT\
-DglBindTexture=glBindTextureEXT
xmlock wont work because there is a /usr/bin/X11/xlock too,
so either rename that one or dont use xmlock.
KERBEROS
See iconfig.h (xmkmf) or configure --help .
Linux (Intel 80386, 80486, & Pentium)
Red Hat and PAM ... may not work ... #define BAD_PAM in config.h after
you do a configure and before a make. Then make sure xlock is setuid
root.
If you are using elf _or_ shadow passwords:
xlock should compile with -DHAVE_SHADOW
this is already forced if you have elf so do not worry, it should
work even if you do not have shadow passwording.
If you are _not_ using elf and are using shadow passwords:
(this old version of shadowing has a _MAJOR_ known security flaw)
link with -lshadow -lgdbm
Next if using shadow passwords:
chown root.root xlock (or root.shadow if it exists)
chmod 4755 xlock
(chmod 2755 xlock may be better if shadow has group read for root group)
Also check that the following was done:
Your /usr/X11R6/lib/X11/config/linux.cf should have
#define HasShadowPasswd YES
This would let the iconfig.h work automatically for compile/link.
chown root.root /etc/shadow (or root.shadow if it exists)
chmod 400 /etc/shadow
(chmod 440 /etc/shadow may be better).
If you want to install shadow passwords on a system that doesn't
already have them (be careful, it can be tricky), see
http://sunsite.unc.edu/linux/HOWTO/Shadow-Password-HOWTO.html
Also see "XFree86" if applicable.
Linux (Alpha)
Change the order of XLIB and XPMLIB in the iconfig.h so the XPMLIB
comes first. Intel stuff above probably applies as well.
Mesa and OpenGL
I assume the Mesa 3-D Graphics Library for the Imakefile. See below
on availability. Follow its instructions and then go to Mesa
section of the iconfig.h and uncomment
XCOMM #define GLLibrary
Mesa and sometimes OpenGL are autodetected if you use configure.
xlock using the Mesa Libraries (<= 2.6) setuid root has a known
method for users to obtain root privledges!
Mesa leak (<=3.4.1) you may want to fix a leak for glXUseXFont()
*** src/X/xfonts.c.orig Fri Feb 9 09:42:36 2001
--- src/X/xfonts.c Thu May 3 09:24:21 2001
***************
*** 260,266 ****
bm = (GLubyte *) MALLOC((max_bm_width * max_bm_height) * sizeof
(GLubyte));
if (!bm) {
! XFreeFontInfo( NULL, fs, 0 );
gl_error(NULL, GL_OUT_OF_MEMORY,
"Couldn't allocate bitmap in glXUseXFont()");
return;
--- 260,266 ----
bm = (GLubyte *) MALLOC((max_bm_width * max_bm_height) * sizeof
(GLubyte));
if (!bm) {
! XFreeFontInfo( NULL, fs, 1 );
gl_error(NULL, GL_OUT_OF_MEMORY,
"Couldn't allocate bitmap in glXUseXFont()");
return;
***************
*** 375,381 ****
}
FREE(bm);
! XFreeFontInfo( NULL, fs, 0 );
XFreeGC (dpy, gc);
/* Restore saved packing modes. */
--- 375,381 ----
}
FREE(bm);
! XFreeFontInfo( NULL, fs, 1 );
XFreeGC (dpy, gc);
/* Restore saved packing modes. */
PAM
http://www.kernel.org/pub/linux/libs/pam/
Rplay
Audio package. See below on availability. Follow its instructions and
then go to iconfig.h and uncomment (should be autodetected if you use
configure)
XCOMM #define RplayLibrary
See config directory for example. (Note: The example files are
concerned with getting it working ... not security).
Solaris2 and greater (Sun SPARC)
You could use Mesa or OpenGL. I found a developers version of OpenGL at
http://www.sun.com/software/graphics/OpenGL/index.html
Solaris2.6 may not work with rplay. configure --without-rplay
If you get something like:
xlock.c:1584: `sigset_t' undeclared (first use this function)
try removing -I/usr/include from the Makefiles or get rid of -Xc
in the xlock/Makefile. If someone figures out a way around this
in the code let me know.
To get xlock working with Sun's GL libraries and includes
If you get "macro `glNormal3f' used with just one arg" ... you need
-DSUN_OGL_NO_VERTEX_MACROS
If using Imakefile, see iconfig.h .
After a make, use on a display that supports GLX `xdpyinfo | grep GLX`
Imake will compile with the -DHAVE_SHADOW switch.
With GNU's gcc, get rid of the "-ansi" during compilation, also
one may want to get rid of the -xF references in
/usr/openwin/lib/config/sun.cf and Imake.tmpl if you get a
cc: language F not recognized
Solaris2.x NIS+ or not using NIS (/etc/passwd):
If you use netgroup make sure there is a return at the end of file.
If your using g++-2.95 or later and have old X11 includes you may have
to change "g++" to "g++ -fpermissive" in the Makefiles.
Sometimes a path to stdc++ library or something is not set right by
configure. The symptom is that xlock runs fine as root but gives a
"No such file or directory" error for a library when run by a user.
Edit with the modes/Makefile adding to XLOCKLDFLAGS the path to the
directory of the library and rebuild.
SunOS4.1.x (Sun Sparc & 680x0)
bubble may crash the xnews server if patch 100444-76 OpenWindows V3.0
Server patch is installed. To test this
`strings /usr/openwin/bin/xnews | grep Patch`
It would then show Patch #3000-124 if 10044-76 is installed.
Put in a link from /usr/include/X11 to your ${OPENWINHOME}/include/X11
to use the xmkmf or use the configure file provided.
gcc -Wall gives a lot of silly warnings, its safe to disregard them.
If your using g++-2.95 or later and have old X11 includes you may have
to change "g++" to "g++ -fpermissive" in the Makefiles.
Ultrix (DEC)
I heard that the logout button just kills xlock.
USE_XLOCKRC feature unimplemented, but may not be hard to do.
xlock must be either setuid root or setgid authread to validate the
password on an Ultrix system.
VMS (DEC)
You may want to set a few things like vroot, bomb, and sound (see audio
below) at the top of the file.
All you should need to do to build the executable is:
$ @make
To run xlock a symbol needs to be defined, for example:
XLOCK:==$H268SYSEXE:XLOCK
where H268SYSEXE is a logical name pointing to the directory where
XLOCK.EXE resides. The '$' after == means this is a foreign command
and VMS makes the command line available to the program.
If the link bombs out I recommend trying it again like the following:
$ @make clean
$ @make
-allowroot only works if you have SYSPRV enabled which is a bit limiting.
Unless one uses the privileged install by a system manager. To do
this, the following command needs to be executed at system startup
(i.e. included in systartup_vms.com):
INSTALL ADD {dev}:[{dir}]XLOCK.EXE/PRIV=(SYSPRV)
where {dev}:[{dir}] is the full path of the executable.
The XLock file normally in /usr/lib/X11/app-defaults needs to be in the
directory DECW$SYSTEM_DEFAULTS on VMS systems and be called
'DECW$XLOCK.DAT'.
USE_XLOCKRC, USE_AUTO_LOGOUT, USE_BUTTON_LOGOUT, & USE_MULTIPLE_ROOT
features are not implemented.
To use audio:
Set "sound" to be 1 in the make.com file. Only available on the Alpha.
To get it work on a VAX some editing of the make.com is needed
(scan for USE_VMSPLAY)
The default sound files are hard coded to be in the current directory
see line 128 or so of the resource.c file but can be overruled from
the command line or the resourcefile decw$xlock.dat.
Sounds did not work for me on the VAX.
It should work OK on an AXP. (Due to a bug in the SO driver on some
models running VMS7.0, sounds are only available on the headset).
To use new event loop:
For VMS7.0 and higher : new event loop is used by default.
You do not need to install extra software.
For VMS6.2 or lower :
You need some UNIX utilities installed (XVMSUTILS). See where to get
it below.
Look at the make.com and xvmsutil stuff.
Latest on VMS sound
first it tests if the SO: device is present
Then if it could be compiled in (license problems) MMOV (Multimedia
services for OpenVMS) is used. Probably you'll need the Developer
license to get it compiled.
limitations :
-currently the SYSNAM privilige is needed to play sounds
(limitation of MMOV)
-some compilation warnings/informationals in the routines which
are taken from the users system disk. (problem in MMOV)
-One warning due to multiple defined symbols in the libraries
issued by Compaq should be ignored.
-Presently A developer license for MMOV is needed. Probably by
slightly modifying DEF_PLAY the Run-time license could also
be usable.
X11
If your using g++-2.95 or later and have old X11 includes you may have
to change "g++" to "g++ -fpermissive" in the Makefiles.
XFree86
Add the following to ~/.Xdefaults
XLock.startCmd: xmodmap -e 'keycode 37=' -e 'keycode 109='
XLock.endCmd: xmodmap -e 'keycode 37=Control_L' -e 'keycode 109=Control_R'
which unmaps both Control keys when xlock is started, and restores the
mapping when it ends. Restart your session so .Xdefaults is read...
Works perfectly.
Other less perfect methods...
Control-Alt-Backspace will defeat locking mechanism and return your
console back unless you put "DontZap" in your XF86Config file.
(In X11R5, that would be a "dontzap" in your Xconfig file).
Control-Alt-F1 (among others) will defeat locking mechanism with
virtual terminals. This is not too good, right? If you are using
Linux, try vlock on tsx-11.mit.edu in /pub/linux/sources/usr.bin .
The current XFree86 (as far as I know) does not have a server
extension for catching or disabling VT switching.
Here is a work around, put this line in /etc/profile:
alias x='(startx >/dev/null &);clear;logout'
then use 'x' instead of 'startx' (with no other active VT's).
Try configuring with --enable-vtlock . This is experimental and requires
xlock being setuid to root so there are security concerns with it.
See man pages for its runtime options.
XPM
Full color pixmap package. See below on availability. Follow its
instructions and then go to iconfig.h and uncomment (should be
autodetected if you use configure)
XCOMM #define XpmLibrary
X-Terminal
(My heart bleeds for you.)
To get xlock to run, run with -remote option or set XLock.remote on
in XLock.ad . You might have to use -allowaccess as well.
tvtwm
One used to get following error when running xlock (+nolock) with
tvtwm.
X Error of failed request: BadWindow (invalid Window parameter)
What happens is that RootWindow(dsp, screen) fails when tvtwm is
running. There is a kludge fix, but multiscreens will not work
right with tvtwm and xlock. (grep on TVTWM in xlock.c).
Another option, don't compile with -DUSE_VROOT . If you debug it
mail ME -OR- both the author of tvtwm and ME the patch.
StickyAbove problems:
Windows in a tvtwm that have "StickyAbove" set to true are still
visible when xlock (+inroot) is running. If this bothers you,
don't compile with -DUSE_VROOT . Is it possible to have xlock
set "StickyAbove" to true as well?
fvwm
-install does not install colormaps. fvwm will not allow an
application to install its own colormap. You could always edit the
source if you have it, (fvwm-1.24r)colormaps.c, where it says
if(ReInstall)
{
XInstallColormap(dpy,last_cmap);
}
make sure this does not happen.
(fvwm does this because its following the X11 docs which say that
window managers should not allow an application to install colormaps).
swirl (and tube) mode
Use with -install to see colormap change.
See "fvwm" if applicable.
"swirl" cycles its colors, except black and white.
This is easily seen when on a color monitor one enters:
./xlock -mode swirl -inwindow -install
now move the mouse in the window.
If you find this annoying compile swirl.c with -DFORCEFIXEDCOLORS.
I hear it LOCKS UP on i386BsdArchitecture and tvtwm.
With twm (and fvwm see above) the colormap does not change.
transparent mode
Try this fudge:
xlock -mode blank -geometry 1x1 -enablesaver
SafeWord
Edit config.h.in ... uncomment SAFEWORD line near bottom.
In modes/Makefile.in make sure SAFEWORD is linked in, comment out
similar link that does not contain safeword libraries.
Put the cust*.h files in the main xlock directory.
Use `configure; make`.
Get back to me if it works or does not work.
Dynamic Linking
Dynamic Linking using elf on the Linux and Sun. This is kind of fragile
and will break other systems. GL modes using Mesa on a PseudoColor
display seem to run short of colors.
Linux:
Not all distributions of Linux have "dlfcn.h" which is needed.
Using configure --enable-modules (MODULE_PATH set in modes/Makefile(.in)
and xlock/Makefile(.in)) then build as normal. This is not recomended
since random mode seems to act very strangely.
Uncomment at least "#define Modules" in iconfig.h, run "xmkmf -a"
and run make install as normal.
Sun:
Need Gnu's make
Can use gcc (recommended) or cc
cc and CC problem with C++ modes (solitare and text3d)
xlock: LoadModule: modes/solitare.xlk: ld.so.1: xlock/xlock: fatal:
relocation error: file modes/solitare.xlk: symbol __0OnwUi:
referenced symbol not found unrecognized mode "solitare").
configure will not work.
Uncomment at least "#define Modules" in iconfig.h.
If you have more than one C++ compiler set CXX in iconfig.h
(seems to default to g++ for me)
xmkmf -a # Ignore errors on Sun (should not get errors on Linux)
Edit generated Makefiles like this:
for i in Makefile xlock/Makefile modes/Makefile modes/glx/Makefile ; do
# both cc (& CC) and gcc (& g++)
sed -e "s#/usr/ccs/bin/make#/usr/local/bin/make#g" $i > $i.tmp ; mv $i.tmp $i
sed -e "s# -z text -M mapfile##g" $i > $i.tmp ; mv $i.tmp $i
sed -e "s# -Xc -xF -xcg92##g" $i > $i.tmp ; mv $i.tmp $i
#following seds for gcc and g++ only
sed -e "s#= cc\$#= gcc#g" $i > $i.tmp ; mv $i.tmp $i
sed -e "s#= cc #= gcc #g" $i > $i.tmp ; mv $i.tmp $i
sed -e "s# -Kpic##g" $i > $i.tmp ; mv $i.tmp $i
done
For g++ and Sun edit modes/Makefile and modes/glx/Makefile for
-isystem change (use grep on isystem to find it).
Also, if you have more than one C++ compiler set CXX in Makefile.
make install
Personal Use
------------
You may want to compile with USE_XLOCKRC . xlock will then prompt
you the first time you use it for a password. It is then encrypted
and stored in your $HOME/.xlockrc file. This is also good for
users who have an unrecognized shadow password environment. See
iconfig.h file (xmkmf) or `configure --help` for an example.
Please note that it may be rude to use xlock in a lab environment.
Lab Environment
---------------
The auto logout feature, when enabled, will log out a user after
30 minutes (by default). The timeout can be changed or disabled
with a command-line option (or x resource -- this is allowed because
the logout button can always be used; see below). The time
remaining before auto-logout is displayed on the password entry
screen.
The logout button, when enabled, is a button that appears on the
password entry screen after 5 minutes (configurable at
compile-time) that, when clicked, logs out the user. The rationale
for this thing is that in a lab environment, we wanted a way for
users to be able to reliably lock their display for short periods
of time, but still be allowed to have the display locked for longer
than that if the lab isn't busy. If the lab IS busy, and there is
a need for workstations, the logout button can be used to logout
someone who's been gone for more than 5 minutes.
Of course, the auto-logout and the logout button are
enabled/disabled by compile-time defines. All these are OFF by
default. One can also force use these features with a local policy
of exemptions (e.g. username or group). See the iconfig.h file or
`configure --help` for an example. Edit your /etc/xlock.staff
file to reflect your policy. If using xdm, you may just want to use
-DCLOSEDOWN_LOGOUT (or -DSESSION_LOGOUT <- old way) in conjunction
with -DUSE_AUTO_LOGOUT or -DUSE_BUTTON_LOGOUT. That way all
backgrounded processes owned by a user do not have to be killed.
Don't PANIC, the auto-logout and the logout button will not run if
you are root. Otherwise, it will kill all of root's processes, not
a good idea. As long as you do not lock the screen (using -nolock,
-inwindow, or -inroot) the policy of xlock users does not go into
effect. If configured with --use-button-logout=-1, the user can decide
if he/she wants the logout button enabled (not enabled if
XLock.buttonLogout=0).
Also there are -DUSE_MULTIPLE_ROOT and -DUSE_MULTIPLE_USER options
where users with the same uid can unlock the screen. -DXLOCK_GROUP
option for all users in the xlock group can unlock.
blank mode only
Change xlock/XLock.ad from
XLock.mode: random
!XLock.mode: blank
to
!XLock.mode: random
XLock.mode: blank
Do a configure with these options, since they would useless now...
configure --without-opengl --without-mesa --without-xpm
Edit the generated config.h, add "#define BLANK_ONLY", then to a make.
xlock still does not work: :-(
-------------------------------
If all that does not work you may need to adjust xlock.h, passwd.c
xlock.c, and resource.c since these files are highly implementation
dependent. If you have to make this kind of change to get it working,
let me know.
You can try compiling with -g and running it with -debug and your
favorite debugger, so xlock will run in a more friendly way (i.e. it
does not lock the screen). There are also may be compile time switches
that could be turned on with -DDEBUG depending on what is not working
correctly.
Here is a simple recipe:
Make sure the 12th line in the iconfig.h is a comment
(This is because the debug library for xpm is not usually installed)
XCOMM #define XpmLibrary
xmkmf <or configure --without-xpm>
edit Makefile on the line with CC = gcc or or CC = cc change to
CC = gcc -g -DDEBUG
make depend <but not if using configure>
make
gdb xlock (xdb or dbx xlock may work too.)
run -debug <other xlock options you want here>
where
print <relevant variables>
(you may have to use "up" to take you to xlockmore code)>
Mail me the results.
If xlock crashes for you when in random mode... try this and mail
me the results. (If it runs for a long time partial result will do
(gut the middle part)).
xlock -mode random -modelist all +install -debug -verbose
-modelist all: all modes except blank
-debug: so it does not lock the screen.
-verbose: for maximum verbosity.
+install: so it does not keep changing the colormap
Other things to try: (if you got it working :-) )
-------------------------------------------------
Check out etc directory for menus and other goodies.
If you like to check out what xlock looks like on multiscreens and you
do not have them... but do have Linux and Xnest ... try:
Xnest -scrns 3 :1 &
xterm -display :1.0
And run xlock from the created xterm. (For some reason I have to do
it as root).
If you are using Mesa, it must be compiled without SHM extension do
to a bug in Xnest (even in XFree3.3 == X11R6.3) or you will get
"BadDrawable (invalid Pixmap or Window parameter)".
You may want to change the 1st line of XLock.ad "random" to "blank",
"life", or whatever your favorite is and copy it to
/usr/lib/X11/app-defaults or $HOME (or wherever your application
defaults files are) and rename to XLock .
You may want some of the modes never to come up in random. This is
already hard coded for the blank mode. See xlock man page on "modelist".
In mode.c you can hard code others by just putting the stuff that you do
not like in the LockProcs to the end of the static array and in
random.c increase NUMSPECIAL by the number of new screens that you do
not want displayed.
You may want to move xlock into /usr/bin/X11 (or wherever your X
binaries are). You may also want to move xlock.man to
/usr/man/man1/xlock.1 .
If you want to remove some unwanted modes just edit "mode.h" and
"mode.c" grep the for the unwanted modes. You might want to edit
the man page and your favorite make file as well.
I am very interested in cellular automata. I am always looking to
improve ant, life, life3d, and life1d. If anyone knows any new
collections (I have lifep.zip (May 94) and xlife 3.0) let me know. If
you would like further information let me know. There are several
run-time options to check out, see docs/cell_automata.
Still like xscreensaver better? (Obscenities omitted ;) ) Try
setting your apps-defaults file for xscreensaver like:
*programs: xlock -nolock +grabmouse -mode random
If you want to hack a new mode check out docs/HACKERS.GUIDE. Then
when working, just mail it to me, grep on "Maintainer" for the
address.
Other related stuff (all not maintained by me):
--------------------------------------------------------------------
NAME
LOCATION (last seen at)
DESCRIPTION
=============
audio/VMS
http://axp616.gsi.de:8080/www/vms/mzsw.html
fortune
ftp://igor.girton.cam.ac.uk/pub/funny/cookie.tgz
ftp://ftp.uu.net/systems/unix/BSD/games/fortune
ftp://ftp.sterling.com/usenet/alt.sources/index (grep for cookie)
Please note that my format is slightly different. The number at the
top of the file should match `grep -c "^%%$" fortune.dat`
freetype and gltt for text3d
http://freetype.sourceforge.net/ is the official site for freetype
(need 1.3.1)
http://gltt.sourceforge.net/ is the official site for gltt (2.5)
To get this to compile with CC on Sun (mainly for xlock maintainer's
reference in case he ever has to do it again; if this is built using
g++ then xlock must be built using g++ if you want text3d to work).
configure --with-ttf-includes=/usr/openwin/include/freetype --with-ttf-libraries=/usr/openwin/lib
change g++ reference in generated Makefile to CC
change .la references to .a in Makefile to produce a libgltt.a
remove -Wall to get rid of warnings in Makefile
change compiler_o_lo="no" for libtool
remove -fPIC to get rid of warnings in libtool
gltt-2.5 may cause xlock to coredump if symbol.ttf or wingding.ttf
if xlock tries to use them. The following patch will take care of
this:
*** gltt-2.5/FTFace.C Sat Mar 13 11:51:49 1999
--- gltt-2.5-DAB/FTFace.C Wed Aug 8 14:06:03 2001
***************
*** 112,117 ****
--- 112,119 ----
if( i == n )
{
+ return GLTT_FALSE;
+ #if 0
TT_Face_Properties properties;
TT_Get_Face_Properties( *face, &properties );
int num_glyphs= properties.num_Glyphs;
***************
*** 125,130 ****
--- 127,133 ----
indices[ascii_code]= glyph_index;
}
+ #endif
}
else
{
freetype2 and FTGL for text3d2
http://www.freetype.org/ need 2.x
http://homepages.paradise.net.nz/henryj/code/#FTGL
=> there's a bug in FTGL that is "known" in text3d2
imagemagick
http://www.imagemagick.org/
imake
ftp://hpux.csc.liv.ac.uk/hpux/X11/Core/imake-5.06/imake-5.06-ss-9.03.tar.gz
I had to worry about FIXUP_CPP_WHITESPACE.
Lesstif
ftp://ftp.hungry.com/pub/hungry/lesstif/lesstif-current.tar.gz
Lesstif Library (just like Motif)
Man2HTML
ftp://sunsite.unc.edu/pub/Linux/system/Manual-pagers/vh-man2html-1.4.tar.gz
Mesa (similar to OpenGL)
ftp://iris.ssec.wisc.edu/pub/Mesa
Mesa 3-D Graphics Library (like OpenGL) Mesa-3.0 or greater required.
Mesa-2.2 and below has some memory leaks and 2.6 and below has some
security concerns.
NAS (audio package)
ftp://ftp.x.org/contrib/audio/nas
OpenGL (for Sun)
http://www.sun.com/software/graphics/OpenGL/
rplay (audio package)
ftp://ftp.x.org/contrib/audio/rplay
UNIX/VMS
Unix-like routines XVMSUTILS can be found at
http://axp616.gsi.de:8080/www/vms/mzsw.html
xautolock (runs xlock after a idle time)
ftp://ftp.x.org/contrib/applications
ftp://sunsite.unc.edu/pub/Linux/X11/screensavers
(I use openwin and I put this in my $HOME/.openwin-init)
toolwait /usr/local/bin/xautolock -time 5 -locker "xlock -lockdelay 30"
XPM
ftp://ftp.x.org/contrib/libraries
color pixmaps
XPM/VMS
use the one above or xlock may bomb out,
compile with cc/standard=vaxc/define=(need_strcasecmp,need_strdup)
except when using XVMSUTILS.
xscreensaver
ftp://ftp.x.org/contrib/applications
http://www.jwz.org/xscreensaver
Operation: (Blurb taken from Darren Senn's xlock)
-------------------------------------------------
Under X, run xlock. The screen will clear, and some pretty animated
picture (exactly which depends on which module is active) will appear
on the screen. If you hit a key, then the screen will clear, and
(unless you've changed the application defaults file that I packaged
with this) you'll get a black screen with some graphics in the top
center. These graphics consist of a reduced size image of the module
you were viewing, the name of the user who executed xlock, and
password prompt field, and some short instructions.
At this point, you can either click on the graphic to return to xlock,
or you can type a password. If the password is verifiable as the
root password, or the password of the user listed above, then xlock
will terminate. THIS IS THE ONLY WAY TO STOP XLOCK WITHOUT SHUTTING
DOWN THE X SERVER. That's what makes it a lock.
Resources: (Also taken from Darren Senn's xlock)
------------------------------------------------
There are two sets of resources for XLock. The first set are (what I
call) global XLock resources, while the second set consists of
module-specific resources.
The global resources are:
XLock.mode: This sets the module.
XLock.font: This is the font used on the password entry screen.
XLock.background: The background color for the password entry screen.
XLock.foreground: The foreground color for the password entry screen.
XLock.username: The label for the field indicating the user name.
XLock.password: The label for the password prompt.
XLock.info: The "short instructions" to print.
XLock.validate: A message to display while checking the password
XLock.invalid: A message to display if the password is incorrect
XLock.nice: How much XLock should nice itself.
XLock.timeout: How long to wait idle at the password prompt.
XLock.timeelapsed: Message to see how long lock running (yes or no)
XLock.mono: Monochrome mode (yes or no)
XLock.nolock: disable the lock mechanism (yes or no)
XLock.remote: allow remote locking (meaningless under linux)
XLock.allowroot: allow the root password to unlock (yes or no)
XLock.enablesaver: allow the system screensaver to work (yes or no)
XLock.allowaccess: allow other clients to connect while active
XLock.echokeys: Echo "?" for each password keypress (yes or no)
XLock.usefirst: Ignore the first character typed (yes or no)
XLock.verbose: Verbose mode. (yes or no)
XLock.inwindow: allow the xlock to run in a window (yes or no)
XLock.inroot: allow the xlock to run in the root window (yes or no)
XLock.grabmouse: Grab the keyboard and mouse (yes or no)
XLock has a number of modules which it can display. (See the man page
for a complete list). It turns out that each module is characterized
by a number of initializations, separated by a number of "draws".
Each module has the following resources defined:
XLock.<module>.delay: How long to wait between draws (usec)
XLock.<module>.batchcount: May mean various things (see man page).
XLock.<module>.cycles: Controls the timeout of screen (see man page).
XLock.<module>.size: Controls size of objects on screen (see man page).
XLock.<module>.saturation: Saturation (as in HSV) of colors to use.
Acknowledgments:
----------------
I did not write the original algorithms in any of the lock screens
(except wator, bug, life1d, demon, ant, daisy, and voters), although I
did convert many of the new ones to run with xlock. I tried to follow
the original style of Patrick Naughton. Updates are made at
ftp.x.org in directory /contrib/applications. Many of the additions
were "borrowed" from xscreensaver (Jamie Zawinski <jwz@jwz.org>).
Some of the others were "borrowed" from old demos from Sun. Many more
are contributions.
I will consider putting new ones in if (1) they are more or less public
domain (i.e. BSD, sorry no GNU copyrights), (2) they are neat (I am
biased towards mathematically based programs (especially the Computer
Recreations of Scientific American)), and (3) I have the time.
Also many thanks to the people that helped me countless times with
xlock mentioned in "Revisions", especially Jouk Jansen, Tom Schmidt,
David Hansen, Ed Mackey, Marcelo Vianna, Ron Hitchens, and Heath Kehoe.
