Module common

Common functionality shared between netpulse binaries.

This module provides shared utilities used by both the netpulse reader and netpulsed daemon binaries, including:

• Privilege checks
• Logging setup
• PID file management
• Process management
• User interaction

Exits

Some functions in this module exit when a condition is not met, printing an error then.

Logging

Logging can be configured via the NETPULSE_LOG_LEVEL environment variable. Valid levels are: TRACE, DEBUG, INFO, WARN, ERROR

Examples

use netpulse::common;

// Check for root privileges
common::root_guard();

// Initialize logging
common::init_logging(tracing::Level::INFO);

// Check if daemon is running
if let Some(pid) = common::getpid_running() {
    println!("Daemon running with PID: {}", pid);
}

Constants

ENV_LOG_LEVEL

Environment variable name for configuring log level

Functions

confirm

Prompts the user for confirmation with a custom message. Returns true if the user confirms, false otherwise.

exec_cmd_for_user

Executes a command and handles errors and output.

getpid_running

Get the pid of the running netpulsed daemon

init_logging

Initializes the logging system with the specified level.

print_usage

Displays program usage information and exits.

root_guard

Ensures the program is running with root privileges.

setup_panic_handler

Sets up a custom panic handler for user-friendly error reporting.