This is a simple program to protect my computer from my cat walking over the keyboard and playing with the mouse :-)
It was inspired by xtrlock, but instead requiring a password to unlock, a simple three-key combination (Ctrl+Alt+KP_Enter) is sufficient to terminate. Furthermore, pressing Meta+L switches off the screen backlight (like xset dpms force off does). These shortcuts are configurable. Just run catlock --help to get a short description.
This software is distributed under a BSD-2-Clause license. The following parts have been taken from external projects:
- The cat icon and cat bitmap for the cursor is taken from oneko which is public domain.
- The cmake FindXCB script and it's dependency (BSD-3-Clause license) from the KDE project.
- The cmake FindPOPT script (BSD-2-Clause license) from Lars Baehren's CMakeModules project.
- The cmake FindXmlTo script (BSD-3-Clause license) from the rabbitmq-c project
catlock requires XCB including it's extensions KEYSYMS IMAGE and DPMS. It uses cmake as a build system and is written in C++. So:
On a Ubuntu-18.04 system in order to get all required tools and dependencies, you would run:
sudo apt-get install git cmake g++ pkg-config \
xmlto libxcb-keysyms1-dev libxcb-image0-dev \
libxcb-dpms0-dev libxext-dev libpopt-dev
On a Fedora-29 system, you would run:
sudo dnf install git cmake gcc-c++ pkg-config xmlto \
make libxcb-devel xcb-util-keysyms-devel \
xcb-util-image-devel libX11-devel popt-devel
git clone https://github.com/felfert/catlock.git
mkdir catlock/build
cd catlock/build
cmake ..
make
sudo make install