markdown # Keyboard Input Event Logger Summary ## Overview This C program captures keyboard input events, resolves device names, and logs these events into a specified SQLite database `tikker.db`. It utilizes a custom library `sormc.h` for database management. ## Features - **Key Event Mapping**: Maps keycodes to their respective characters for better representation. - **Event Logging**: Logs key events with timestamps efficiently into the database. - **User Configuration**: Allows device selection via a command-line option for targeted event capturing. - **MIT License**: Allows free use, modification, and distribution of the software. ## Bugs and Issues 1. **Undefined Functions**: Missing definitions for `rargs_get_option_string`, `sormc`, and `sormq`, leading to potential undefined behavior. 2. **Device Resolution**: Uses `O_RDONLY` to open devices, which may need root access, potentially causing permission issues. 3. **Array Boundaries**: Access to `keycode_to_char` without bounds checking could lead to undefined behavior. 4. **Error Handling**: Lack of checks after using `snprintf`, `open`, and `ioctl`, leading to potential failures and bugs. ## Recommendations - **Argument Parsing**: Use robust libraries for better flexibility and error management. - **Signal Handling**: Implement graceful termination with proper file descriptor management. - **Error Checking**: Add checks post `snprintf`, `open`, and `ioctl` to handle errors effectively. - **Optimize Performance**: Reduce redundancy in `printf` statements for better efficiency. ## Positive Attributes - Effectively maps keycodes to characters. - Provides informative console output for ongoing events. - Efficient database logging of key events. ## Potential Improvements To enhance its robustness and user-friendliness, the program needs the implementation of missing functions and improved error-handling mechanisms. ## Alternative Open Source Tools - **logkeys**: A Linux keylogger similar in function. - **Keylogger (Python)**: Uses `pynput` for cross-platform keylogging. - **Linux-dirty-injector**: Provides additional functionalities including keylogging. --- *Note: The program is reviewed with a grade of 6.0, suggesting more development is needed in error handling and functionality completion.*