initial import
--HG-- extra : convert_revision : svn%3Aeebe1cee-a9af-4fe4-bd26-ad572b19c5ab/trunk%401
This commit is contained in:
mathias
commit
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7
CHANGELOG
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7
CHANGELOG
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Version 0.1
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2005-04-28:
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* first release (0.1)
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* added pam-support (works ok with linux + freebsd so far)
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* use scons for building the stuff
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84
README
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84
README
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-+------------------------------------------------------------------+-
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aklock - a slim screenlocker for X
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-+------------------------------------------------------------------+-
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1. about
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2. installation
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3. usage
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4. todo
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5. author
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||||||
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1. about
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--------
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||||||
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'aklock' locks your current session in X. its not a fullfeatured
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screensaver-distribution like 'xlockmore' or 'xscreensaver' but just a
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tiny locker: "uh, i need coffee .. lock" .. speaking of size: binary takes
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only 11kb. 'aklock' shows the content of the locked screen .. so you can
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see whats going on, even when you are not able to modify what you see.
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this is pretty usefull for public terminals where a demo should run which
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shouldnt interupted (you know those little kids who press every button and
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click everywhere ...).
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an irc-friend of mine (izhirahider) is using 'xtrlock' and had some
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problems with it .. no wonder, development stopped some years ago
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and it doesnt support pam. since i like the minimalism of 'xtrlock'
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but wanted to add some minor things to it i "forked" 'aklock' from
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'xtrlock' and modified it a bit :)
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2. installation
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---------------
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to install / compile 'aklock' you need 'scons':
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||||||
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http://www.scons.org
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its a clever buildsystem which i prefer over make/autotools.
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after installing 'scons' you just type:
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$> scons
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and it should build your personal version of 'aklock'
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you can influence the build-process by some variables, check
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$> scons -h
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to finally install it to your system use:
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||||||
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$> scons install
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and thats it.
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tested platforms (so far):
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gentoo-linux (pc and ppc with gcc3.4.3)
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freebsd5.3 (pc gcc3.4.2)
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3. usage
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--------
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aklock [-vh] [-blank]
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-h displays a little help
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-v displays version number
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-blank hides the content of the screen with a big, black area
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after locking 'aklock' will show a modified mousecursor. you have to
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enter your password blindly. if its the correct password the screen will
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unlock
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4. todo
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-------
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- check on irix, sun, hp etc etc
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- users wants to specify lockcursor + background for -blank
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5. author
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---------
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2005 mathias gumz aka akira < akira at fluxbox dot org>
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1993 - 1994 ian jackson (xtrlock)
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|
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79
SConstruct
Normal file
79
SConstruct
Normal file
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#!/bin/env python
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##########################################################
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#
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# scons - buildsystem for aklock
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#
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##########################################################
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import sys
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aklock_version = '0.1'
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aklock_optfile = 'scons.opts'
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aklock_distfiles = ['aklock.c',
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'lock.bitmap', 'mask.bitmap',
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'SConstruct', 'README', 'CHANGELOG' ]
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aklock_sources = [ 'aklock.c' ]
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aklock_target = 'aklock'
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Default(aklock_target)
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aklock_options = Options(aklock_optfile)
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aklock_options.AddOptions(
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BoolOption('debug', 'build debug version', 0),
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BoolOption('shadow', 'support for shadowpasswords', 0),
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BoolOption('pam', 'support for pam', 1),
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PathOption('prefix', 'install-path base', '/usr/local')
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)
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aklock_env = Environment(options = aklock_options,
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TARFLAGS = '-c -z',
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TARSUFFIX = '.tgz')
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Help(aklock_options.GenerateHelpText(aklock_env))
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###########################################################
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#
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#
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build = aklock_env.Copy()
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if sys.platform == "linux2" or sys.platform == "linux-i386":
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build.AppendUnique(
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CPPDEFINES = [ 'LINUX' ])
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build.AppendUnique(
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CPPDEFINES = [ 'VERSION=\\"'+aklock_version+'\\"' ],
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CPPFLAGS = [ '-Wall' ],
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CPPPATH = [ '/usr/X11R6/include' ],
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LIBPATH = ['/usr/X11R6/lib'],
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LIBS = [ 'X11', 'crypt' ])
|
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if build['debug']:
|
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build.AppendUnique(
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CPPDEFINES = [ 'DEBUG' ],
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LINKFLAGS = [ '-g' ],
|
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CPPFLAGS = [ '-g' ])
|
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if build['pam']:
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build.AppendUnique(
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CPPDEFINES = [ 'PAM_PWD' ],
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LIBS = [ 'pam' ])
|
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if sys.platform == 'linux2' or sys.platform == 'linux-i386':
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build.AppendUnique(LIBS = ['pam_misc'])
|
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if build['shadow']:
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build.AppendUnique(
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CPPDEFINES = [ 'SHADOW_PWD' ])
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aklock_program = build.Program(aklock_target, aklock_sources)
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build.AddPostAction(aklock_program, Chmod(aklock_target, 0755))
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aklock_env.Install(aklock_env['prefix']+'/bin', aklock_program)
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aklock_env.Alias('install', aklock_env['prefix']+'/bin')
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# TODO: add a "scons dist" command which builds a propper tarball
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#aklock_env.Alias('dist', aklock_env.Tar(aklock_target + '-' + aklock_version,
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# aklock_distfiles))
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||||||
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# vim:ft=python
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482
aklock.c
Normal file
482
aklock.c
Normal file
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@ -0,0 +1,482 @@
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/*------------------------------------------------------------------*\
|
||||||
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||||||
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file: aklock.c
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||||||
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X Transparent Lock
|
||||||
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||||||
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copyright:
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||||||
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||||||
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Copyright (C)1993,1994 Ian Jackson (xtrlock)
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||||||
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Copyright (C)2005 Mathias Gumz (forked aklock)
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||||||
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license:
|
||||||
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||||||
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This is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
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the Free Software Foundation; either version 2, or (at your option)
|
||||||
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any later version.
|
||||||
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|
||||||
|
This is distributed in the hope that it will be useful,
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||||||
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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||||||
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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||||||
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GNU General Public License for more details.
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||||||
|
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||||||
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\*------------------------------------------------------------------*/
|
||||||
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|
||||||
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/*------------------------------------------------------------------*\
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||||||
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\*------------------------------------------------------------------*/
|
||||||
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#include <X11/X.h>
|
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/keysym.h>
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||||||
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#include <X11/Xos.h>
|
||||||
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|
||||||
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#include <stdlib.h>
|
||||||
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#include <stdio.h>
|
||||||
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#include <sys/types.h>
|
||||||
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#include <sys/stat.h>
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||||||
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#include <errno.h>
|
||||||
|
#include <pwd.h>
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||||||
|
#include <grp.h>
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||||||
|
#include <limits.h>
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||||||
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#include <string.h>
|
||||||
|
#include <unistd.h>
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||||||
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#include <math.h>
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||||||
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#include <ctype.h>
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||||||
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||||||
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#ifdef SHADOW_PWD
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# include <shadow.h>
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#endif /* SHADOW_PWD */
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||||||
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||||||
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#ifdef PAM_PWD
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||||||
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# include <security/pam_appl.h>
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||||||
|
# ifdef LINUX
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||||||
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# include <security/pam_misc.h>
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||||||
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# endif
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||||||
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#endif /* PAM_PWD */
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||||||
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||||||
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/*----------------------------------------------*\
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||||||
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\*----------------------------------------------*/
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||||||
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||||||
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#include "lock.bitmap"
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#include "mask.bitmap"
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||||||
|
|
||||||
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/*------------------------------------------------------------------*\
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||||||
|
globals
|
||||||
|
\*------------------------------------------------------------------*/
|
||||||
|
|
||||||
|
#define TIMEOUTPERATTEMPT 30000
|
||||||
|
#define MAXGOODWILL (TIMEOUTPERATTEMPT*5)
|
||||||
|
#define INITIALGOODWILL MAXGOODWILL
|
||||||
|
#define GOODWILLPORTION 0.3
|
||||||
|
|
||||||
|
#ifdef DEBUG
|
||||||
|
# define DBGMSG fprintf(stderr, "%s : %d\n", __FUNCTION__, __LINE__); fflush(stderr)
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||||||
|
#else
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||||||
|
# define DBGMSG
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||||||
|
#endif // DEBUG
|
||||||
|
|
||||||
|
struct passwd *pw;
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||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/*------------------------------------------------------------------*\
|
||||||
|
\*------------------------------------------------------------------*/
|
||||||
|
|
||||||
|
void displayUsage() {
|
||||||
|
|
||||||
|
printf("\naklock [-hv] [-blank]\n\n"
|
||||||
|
" -h shows this little help\n"
|
||||||
|
" -v shows the version number\n"
|
||||||
|
" -blank hides the content of the screen\n"
|
||||||
|
"\n"
|
||||||
|
"when the screen is locked, just enter your password.\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/*------------------------------------------------------------------*\
|
||||||
|
pam-related stuff
|
||||||
|
|
||||||
|
taken from pure-ftpd's authstuff, but you can see similar stuff
|
||||||
|
in xlockmore, openssh and basicly all pam-related apps :)
|
||||||
|
\*------------------------------------------------------------------*/
|
||||||
|
#ifdef PAM_PWD
|
||||||
|
# define PAM_YN { \
|
||||||
|
if (PAM_error != 0 || pam_error != PAM_SUCCESS) { \
|
||||||
|
fprintf(stderr, "pam error:%s\n", pam_strerror(pam_handle, pam_error)); \
|
||||||
|
pam_end(pam_handle, pam_error); \
|
||||||
|
PAM_username = NULL; \
|
||||||
|
PAM_password = NULL; \
|
||||||
|
return 0;\
|
||||||
|
} \
|
||||||
|
}
|
||||||
|
|
||||||
|
# define GET_MEM \
|
||||||
|
size += sizeof(struct pam_response); \
|
||||||
|
if ((reply = realloc(reply, size)) == NULL) { \
|
||||||
|
PAM_error = 1; \
|
||||||
|
return PAM_CONV_ERR; \
|
||||||
|
}
|
||||||
|
|
||||||
|
static const char* PAM_username = NULL;
|
||||||
|
static const char* PAM_password = NULL;
|
||||||
|
static int PAM_error = 0;
|
||||||
|
static int pam_error = PAM_SUCCESS;
|
||||||
|
|
||||||
|
static int PAM_conv(int num_msg, const struct pam_message **msgs,
|
||||||
|
struct pam_response **resp, void *appdata_ptr) {
|
||||||
|
|
||||||
|
int count = 0;
|
||||||
|
unsigned int replies = 0U;
|
||||||
|
struct pam_response *reply = NULL;
|
||||||
|
size_t size = (size_t) 0U;
|
||||||
|
|
||||||
|
(void) appdata_ptr;
|
||||||
|
*resp = NULL;
|
||||||
|
for (count = 0; count < num_msg; count++) {
|
||||||
|
switch (msgs[count]->msg_style) {
|
||||||
|
case PAM_PROMPT_ECHO_ON:
|
||||||
|
GET_MEM;
|
||||||
|
memset(&reply[replies], 0, sizeof reply[replies]);
|
||||||
|
if ((reply[replies].resp = strdup(PAM_username)) == NULL) {
|
||||||
|
# ifdef PAM_BUF_ERR
|
||||||
|
reply[replies].resp_retcode = PAM_BUF_ERR;
|
||||||
|
# endif
|
||||||
|
PAM_error = 1;
|
||||||
|
return PAM_CONV_ERR;
|
||||||
|
}
|
||||||
|
reply[replies++].resp_retcode = PAM_SUCCESS;
|
||||||
|
/* PAM frees resp */
|
||||||
|
break;
|
||||||
|
case PAM_PROMPT_ECHO_OFF:
|
||||||
|
GET_MEM;
|
||||||
|
memset(&reply[replies], 0, sizeof reply[replies]);
|
||||||
|
if ((reply[replies].resp = strdup(PAM_password)) == NULL) {
|
||||||
|
# ifdef PAM_BUF_ERR
|
||||||
|
reply[replies].resp_retcode = PAM_BUF_ERR;
|
||||||
|
# endif
|
||||||
|
PAM_error = 1;
|
||||||
|
return PAM_CONV_ERR;
|
||||||
|
}
|
||||||
|
reply[replies++].resp_retcode = PAM_SUCCESS;
|
||||||
|
/* PAM frees resp */
|
||||||
|
break;
|
||||||
|
case PAM_TEXT_INFO:
|
||||||
|
/* ignore it... */
|
||||||
|
break;
|
||||||
|
case PAM_ERROR_MSG:
|
||||||
|
default:
|
||||||
|
/* Must be an error of some sort... */
|
||||||
|
free(reply);
|
||||||
|
PAM_error = 1;
|
||||||
|
return PAM_CONV_ERR;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
*resp = reply;
|
||||||
|
return PAM_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct pam_conv PAM_conversation = {
|
||||||
|
&PAM_conv, NULL
|
||||||
|
};
|
||||||
|
#endif /* PAM_PWD */
|
||||||
|
/*------------------------------------------------------------------*\
|
||||||
|
\*------------------------------------------------------------------*/
|
||||||
|
|
||||||
|
int passwordOk(const char *s) {
|
||||||
|
#if 0
|
||||||
|
char key[3];
|
||||||
|
char *encr;
|
||||||
|
|
||||||
|
key[0] = *(pw->pw_passwd);
|
||||||
|
key[1] = (pw->pw_passwd)[1];
|
||||||
|
key[2] = 0;
|
||||||
|
encr = crypt(s, key);
|
||||||
|
return !strcmp(encr, pw->pw_passwd);
|
||||||
|
#else
|
||||||
|
/* simpler, and should work with crypt() algorithms using longer
|
||||||
|
salt strings (like the md5-based one on freebsd). --marekm */
|
||||||
|
#ifdef PAM_PWD
|
||||||
|
pam_handle_t* pam_handle = NULL;
|
||||||
|
PAM_username = pw->pw_name;
|
||||||
|
PAM_password = s;
|
||||||
|
pam_error = pam_start("login", PAM_username, &PAM_conversation, &pam_handle);
|
||||||
|
PAM_YN;
|
||||||
|
pam_error = pam_authenticate(pam_handle, 0);
|
||||||
|
PAM_YN;
|
||||||
|
pam_error = pam_end(pam_handle, pam_error);
|
||||||
|
PAM_YN;
|
||||||
|
return 1;
|
||||||
|
#else
|
||||||
|
return !strcmp(crypt(s, pw->pw_passwd), pw->pw_passwd);
|
||||||
|
#endif /* PAM_PWD */
|
||||||
|
#endif /* 0 */
|
||||||
|
}
|
||||||
|
|
||||||
|
/*------------------------------------------------------------------*\
|
||||||
|
check if the system would be able to authentificate the user
|
||||||
|
\*------------------------------------------------------------------*/
|
||||||
|
void checkAuth() {
|
||||||
|
|
||||||
|
#ifdef SHADOW_PWD
|
||||||
|
struct spwd *sp;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
errno = 0;
|
||||||
|
pw = getpwuid(getuid());
|
||||||
|
if (!pw) {
|
||||||
|
perror("password entry for uid not found");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef SHADOW_PWD
|
||||||
|
sp = getspnam(pw->pw_name);
|
||||||
|
if (sp)
|
||||||
|
pw->pw_passwd = sp->sp_pwdp;
|
||||||
|
endspent();
|
||||||
|
#endif
|
||||||
|
/* we can be installed setuid root to support shadow passwords,
|
||||||
|
and we don't need root privileges any longer. --marekm */
|
||||||
|
setuid(getuid());
|
||||||
|
#ifndef PAM_PWD
|
||||||
|
if (strlen(pw->pw_passwd) < 13) {
|
||||||
|
perror("aklock: password entry has no pwd\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
#endif /* PAM_PWD */
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/*------------------------------------------------------------------*\
|
||||||
|
\*------------------------------------------------------------------*/
|
||||||
|
|
||||||
|
struct XInfo {
|
||||||
|
|
||||||
|
Display* display;
|
||||||
|
Window root;
|
||||||
|
Window window;
|
||||||
|
|
||||||
|
Cursor cursor;
|
||||||
|
|
||||||
|
int width;
|
||||||
|
int height;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct Opts {
|
||||||
|
|
||||||
|
char use_blank;
|
||||||
|
|
||||||
|
char* color_fg;
|
||||||
|
char* color_bg;
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
/*------------------------------------------------------------------*\
|
||||||
|
\*------------------------------------------------------------------*/
|
||||||
|
|
||||||
|
void initOpts(struct Opts* opts) {
|
||||||
|
|
||||||
|
opts->use_blank = 0;
|
||||||
|
|
||||||
|
opts->color_bg = "steelblue3";
|
||||||
|
opts->color_fg = "grey25";
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
void initXInfo(struct XInfo* xinfo, struct Opts* opts) {
|
||||||
|
|
||||||
|
|
||||||
|
Display* dpy = XOpenDisplay(NULL);
|
||||||
|
XColor color_fg;
|
||||||
|
XColor color_bg;
|
||||||
|
XColor tmp_color;
|
||||||
|
Colormap color_map;
|
||||||
|
Pixmap pixmap_cursor;
|
||||||
|
Pixmap pixmap_cursor_mask;
|
||||||
|
XWindowAttributes xgwa;
|
||||||
|
|
||||||
|
if (!dpy) {
|
||||||
|
perror("aklock: error, can't open connection to X");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
xinfo->display = dpy;
|
||||||
|
xinfo->window = 0;
|
||||||
|
|
||||||
|
xinfo->root = DefaultRootWindow(dpy);
|
||||||
|
color_map = DefaultColormap(dpy, DefaultScreen(dpy));
|
||||||
|
|
||||||
|
XGetWindowAttributes(dpy, xinfo->root, &xgwa);
|
||||||
|
|
||||||
|
xinfo->width = xgwa.width;
|
||||||
|
xinfo->height = xgwa.height;
|
||||||
|
|
||||||
|
pixmap_cursor = XCreateBitmapFromData(dpy, xinfo->root, lock_bits, lock_width, lock_height);
|
||||||
|
pixmap_cursor_mask = XCreateBitmapFromData(dpy, xinfo->root, mask_bits, mask_width, mask_height);
|
||||||
|
|
||||||
|
if((XAllocNamedColor(dpy, color_map, opts->color_bg, &tmp_color, &color_bg)) == 0)
|
||||||
|
XAllocNamedColor(dpy, color_map, "black", &tmp_color, &color_bg);
|
||||||
|
if((XAllocNamedColor(dpy, color_map, opts->color_fg, &tmp_color, &color_fg)) == 0)
|
||||||
|
XAllocNamedColor(dpy, color_map, "white", &tmp_color, &color_fg);
|
||||||
|
|
||||||
|
xinfo->cursor = XCreatePixmapCursor(dpy,
|
||||||
|
pixmap_cursor, pixmap_cursor_mask,
|
||||||
|
&color_fg, &color_bg,
|
||||||
|
lock_x_hot, lock_y_hot);
|
||||||
|
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, char **argv) {
|
||||||
|
|
||||||
|
XEvent ev;
|
||||||
|
KeySym ks;
|
||||||
|
char cbuf[10], rbuf[50];
|
||||||
|
int clen, rlen = 0;
|
||||||
|
long goodwill = INITIALGOODWILL, timeout = 0;
|
||||||
|
|
||||||
|
XSetWindowAttributes xswa;
|
||||||
|
long xsmask = 0;
|
||||||
|
|
||||||
|
struct XInfo xinfo;
|
||||||
|
struct Opts opts;
|
||||||
|
|
||||||
|
int arg = 0;
|
||||||
|
|
||||||
|
initOpts(&opts);
|
||||||
|
|
||||||
|
// parse options
|
||||||
|
if (argc != 1) {
|
||||||
|
for(arg = 1; arg <= argc; arg++) {
|
||||||
|
if (!strcmp(argv[arg - 1], "-blank")) {
|
||||||
|
opts.use_blank = 1;
|
||||||
|
} else if (!strcmp(argv[arg - 1], "-h")) {
|
||||||
|
displayUsage();
|
||||||
|
exit(0);
|
||||||
|
} else if (!strcmp(argv[arg - 1], "-v")) {
|
||||||
|
printf("aklock-%s by m.gumz 2005\n", VERSION);
|
||||||
|
exit(0);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
checkAuth();
|
||||||
|
|
||||||
|
initXInfo(&xinfo, &opts);
|
||||||
|
|
||||||
|
|
||||||
|
/* create the windows */
|
||||||
|
xswa.override_redirect = True;
|
||||||
|
xsmask |= CWOverrideRedirect;
|
||||||
|
|
||||||
|
if (opts.use_blank) {
|
||||||
|
|
||||||
|
xswa.background_pixel = BlackPixel(xinfo.display, DefaultScreen(xinfo.display));
|
||||||
|
xsmask |= CWBackPixel;
|
||||||
|
|
||||||
|
xinfo.window = XCreateWindow(xinfo.display, xinfo.root,
|
||||||
|
0, 0, xinfo.width, xinfo.height,
|
||||||
|
0, /* borderwidth */
|
||||||
|
CopyFromParent, /* depth */
|
||||||
|
InputOutput, /* class */
|
||||||
|
CopyFromParent, /* visual */
|
||||||
|
xsmask, &xswa);
|
||||||
|
} else {
|
||||||
|
|
||||||
|
xinfo.window = XCreateWindow(xinfo.display, xinfo.root,
|
||||||
|
0, 0, 1, 1,
|
||||||
|
0, /* borderwidth */
|
||||||
|
CopyFromParent, /* depth */
|
||||||
|
InputOnly, /* class */
|
||||||
|
CopyFromParent, /* visual */
|
||||||
|
xsmask, &xswa);
|
||||||
|
}
|
||||||
|
|
||||||
|
XSelectInput(xinfo.display, xinfo.window, KeyPressMask|KeyReleaseMask);
|
||||||
|
XMapWindow(xinfo.display, xinfo.window);
|
||||||
|
XRaiseWindow(xinfo.display, xinfo.window);
|
||||||
|
|
||||||
|
/* try to grab 2 times, another process (windowmanager) may have grabbed
|
||||||
|
* the keyboard already */
|
||||||
|
if ((XGrabKeyboard(xinfo.display, xinfo.window, True, GrabModeAsync, GrabModeAsync,
|
||||||
|
CurrentTime)) != GrabSuccess) {
|
||||||
|
sleep(1);
|
||||||
|
if ((XGrabKeyboard(xinfo.display, xinfo.window, True, GrabModeAsync, GrabModeAsync,
|
||||||
|
CurrentTime)) != GrabSuccess) {
|
||||||
|
perror("aklock: couldnt grab the keyboard.\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (XGrabPointer(xinfo.display, xinfo.window, False, (KeyPressMask|KeyReleaseMask) & 0,
|
||||||
|
GrabModeAsync, GrabModeAsync, None, xinfo.cursor, CurrentTime) != GrabSuccess) {
|
||||||
|
XUngrabKeyboard(xinfo.display, CurrentTime);
|
||||||
|
perror("aklock: couldnt grab the pointer.\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* eventhandling */
|
||||||
|
for(;;) {
|
||||||
|
XNextEvent(xinfo.display, &ev);
|
||||||
|
switch (ev.type) {
|
||||||
|
case KeyPress:
|
||||||
|
if (ev.xkey.time < timeout) {
|
||||||
|
XBell(xinfo.display, 0);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
clen = XLookupString(&ev.xkey, cbuf, 9, &ks, 0);
|
||||||
|
switch (ks) {
|
||||||
|
case XK_Escape:
|
||||||
|
case XK_Clear:
|
||||||
|
rlen = 0;
|
||||||
|
break;
|
||||||
|
case XK_Delete:
|
||||||
|
case XK_BackSpace:
|
||||||
|
if (rlen > 0)
|
||||||
|
rlen--;
|
||||||
|
break;
|
||||||
|
case XK_Linefeed:
|
||||||
|
case XK_Return:
|
||||||
|
if (rlen == 0)
|
||||||
|
break;
|
||||||
|
rbuf[rlen] = 0;
|
||||||
|
if (passwordOk(rbuf))
|
||||||
|
goto exit;
|
||||||
|
XBell(xinfo.display, 0);
|
||||||
|
rlen = 0;
|
||||||
|
if (timeout) {
|
||||||
|
goodwill += ev.xkey.time - timeout;
|
||||||
|
if (goodwill > MAXGOODWILL) {
|
||||||
|
goodwill = MAXGOODWILL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
timeout = -goodwill * GOODWILLPORTION;
|
||||||
|
goodwill += timeout;
|
||||||
|
timeout += ev.xkey.time + TIMEOUTPERATTEMPT;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
if (clen != 1)
|
||||||
|
break;
|
||||||
|
if (rlen < sizeof(rbuf))
|
||||||
|
rbuf[rlen] = cbuf[0];
|
||||||
|
rlen++;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
exit:
|
||||||
|
XDestroyWindow(xinfo.display, xinfo.window);
|
||||||
|
XCloseDisplay(xinfo.display);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
54
aklock.man
Normal file
54
aklock.man
Normal file
|
|
@ -0,0 +1,54 @@
|
||||||
|
.TH AKLOCK 1
|
||||||
|
.SH NAME
|
||||||
|
aklock \- Lock X display until password supplied
|
||||||
|
.SH SYNOPSIS
|
||||||
|
.B aklock
|
||||||
|
.SH DESCRIPTION
|
||||||
|
.B aklock
|
||||||
|
locks the X server till the user enters their password at the keyboard.
|
||||||
|
|
||||||
|
While
|
||||||
|
.B aklock
|
||||||
|
is running, the mouse and keyboard are grabbed and the mouse cursor
|
||||||
|
becomes a padlock. Output displayed by X programs, and windows put up
|
||||||
|
by new X clients, continue to be visible, and any new output is
|
||||||
|
displayed normally, except you run in -blank mode. Then the content
|
||||||
|
of the Screen is hidden behind a black Window.
|
||||||
|
|
||||||
|
The mouse and keyboard are returned when the user types their
|
||||||
|
password, followed by Enter or Newline. If an incorrect password is
|
||||||
|
entered the bell is sounded. Pressing Backspace or Delete erases one
|
||||||
|
character of a password partially typed; pressing Escape or Clear
|
||||||
|
clears anything that has been entered.
|
||||||
|
|
||||||
|
If too many attempts are made in too short a time further keystrokes
|
||||||
|
generate bells and are otherwise ignored until a timeout has expired.
|
||||||
|
|
||||||
|
The X server screen saver continues to operate normally; if it comes
|
||||||
|
into operation the display may be restored by the usual means of
|
||||||
|
touching a key (Shift, for example) or the mouse.
|
||||||
|
.SH OPTIONS, X RESOURCES, CONFIGURATION
|
||||||
|
None.
|
||||||
|
.SH BUGS
|
||||||
|
Additional input devices other than the keyboard and mouse are not
|
||||||
|
disabled.
|
||||||
|
|
||||||
|
The timeouts, bitmaps and mouse cursor colour cannot be modifed.
|
||||||
|
.SH SEE ALSO
|
||||||
|
.BR X "(1), " xlock "(1), Xlib Documentation."
|
||||||
|
.SH AUTHOR
|
||||||
|
Mathias Gumz <akira at gmail dot com>
|
||||||
|
Ian Jackson <ijackson@nyx.cs.du.edu>
|
||||||
|
.SH COPYRIGHT
|
||||||
|
Copyright (C) 2005 Mathias Gumz
|
||||||
|
Copyright (C) 1993, 1994 by Ian Jackson.
|
||||||
|
|
||||||
|
Permission to use, copy, modify and distribute this software and its
|
||||||
|
documentation is granted under the terms of the GNU General Public
|
||||||
|
Licence, version 2 or later, as published by the Free Software
|
||||||
|
Foundation.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful, but
|
||||||
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
General Public License for more details.
|
||||||
19
lock.bitmap
Normal file
19
lock.bitmap
Normal file
|
|
@ -0,0 +1,19 @@
|
||||||
|
#define lock_width 28
|
||||||
|
#define lock_height 40
|
||||||
|
#define lock_x_hot 14
|
||||||
|
#define lock_y_hot 21
|
||||||
|
static char lock_bits[] = {
|
||||||
|
0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0xf8, 0xff, 0x7f, 0x00, 0xe0, 0xff,
|
||||||
|
0x3f, 0x00, 0xc0, 0xff, 0x1f, 0x00, 0x80, 0xff, 0x0f, 0xfc, 0x03, 0xff,
|
||||||
|
0x0f, 0xfe, 0x07, 0xff, 0x0f, 0xff, 0x0f, 0xff, 0x07, 0xff, 0x0f, 0xfe,
|
||||||
|
0x87, 0xff, 0x1f, 0xfe, 0x87, 0xff, 0x1f, 0xfe, 0x87, 0xff, 0x1f, 0xfe,
|
||||||
|
0x87, 0xff, 0x1f, 0xfe, 0x87, 0xff, 0x1f, 0xfe, 0x87, 0xff, 0x1f, 0xfe,
|
||||||
|
0x87, 0xff, 0x1f, 0xfe, 0x87, 0xff, 0x1f, 0xfe, 0x87, 0xff, 0x1f, 0xfe,
|
||||||
|
0x87, 0xff, 0x1f, 0xfe, 0x01, 0x00, 0x00, 0xf8, 0x01, 0x00, 0x00, 0xf8,
|
||||||
|
0x01, 0x00, 0x00, 0xf8, 0x01, 0x00, 0x00, 0xf8, 0x01, 0xf0, 0x00, 0xf8,
|
||||||
|
0x01, 0xf8, 0x01, 0xf8, 0x01, 0xf8, 0x01, 0xf8, 0x01, 0xf8, 0x01, 0xf8,
|
||||||
|
0x01, 0xf8, 0x01, 0xf8, 0x01, 0xf0, 0x00, 0xf8, 0x01, 0x60, 0x00, 0xf8,
|
||||||
|
0x01, 0x60, 0x00, 0xf8, 0x01, 0x60, 0x00, 0xf8, 0x01, 0x60, 0x00, 0xf8,
|
||||||
|
0x01, 0x60, 0x00, 0xf8, 0x01, 0x60, 0x00, 0xf8, 0x01, 0x00, 0x00, 0xf8,
|
||||||
|
0x01, 0x00, 0x00, 0xf8, 0x01, 0x00, 0x00, 0xf8, 0x01, 0x00, 0x00, 0xf8,
|
||||||
|
0xff, 0xff, 0xff, 0xff};
|
||||||
19
mask.bitmap
Normal file
19
mask.bitmap
Normal file
|
|
@ -0,0 +1,19 @@
|
||||||
|
#define mask_width 28
|
||||||
|
#define mask_height 40
|
||||||
|
#define mask_x_hot 14
|
||||||
|
#define mask_y_hot 21
|
||||||
|
static char mask_bits[] = {
|
||||||
|
0x00, 0xfe, 0x07, 0x00, 0x80, 0xff, 0x1f, 0x00, 0xc0, 0xff, 0x3f, 0x00,
|
||||||
|
0xe0, 0xff, 0x7f, 0x00, 0xf0, 0xff, 0xff, 0x00, 0xf8, 0xff, 0xff, 0x01,
|
||||||
|
0xf8, 0x03, 0xfc, 0x01, 0xf8, 0x01, 0xf8, 0x01, 0xfc, 0x01, 0xf8, 0x03,
|
||||||
|
0xfc, 0x00, 0xf0, 0x03, 0xfc, 0x00, 0xf0, 0x03, 0xfc, 0x00, 0xf0, 0x03,
|
||||||
|
0xfc, 0x00, 0xf0, 0x03, 0xfc, 0x00, 0xf0, 0x03, 0xfc, 0x00, 0xf0, 0x03,
|
||||||
|
0xfc, 0x00, 0xf0, 0x03, 0xfc, 0x00, 0xf0, 0x03, 0xfc, 0x00, 0xf0, 0x03,
|
||||||
|
0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f,
|
||||||
|
0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f,
|
||||||
|
0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f,
|
||||||
|
0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f,
|
||||||
|
0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f,
|
||||||
|
0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f,
|
||||||
|
0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x0f,
|
||||||
|
0xff, 0xff, 0xff, 0x0f};
|
||||||
Reference in a new issue