netstat2 0.11.2

Cross-platform library to retrieve network sockets information.
Documentation 
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use crate::types::tcp_state::TcpState;
use std::net::IpAddr;

/// General socket information.
#[derive(Clone, Debug, PartialEq)]
pub struct SocketInfo {
    /// Protocol-specific socket information.
    pub protocol_socket_info: ProtocolSocketInfo,
    /// Identifiers of processes associated with this socket.
    pub associated_pids: Vec<u32>,
    #[cfg(any(target_os = "linux", target_os = "android"))]
    /// Inode number of this socket.
    pub inode: u32,
    #[cfg(any(target_os = "linux", target_os = "android"))]
    /// Owner UID of this socket.
    pub uid: u32,
}

/// Protocol-specific socket information.
#[derive(Clone, Debug, PartialEq)]
pub enum ProtocolSocketInfo {
    /// TCP-specific socket information.
    Tcp(TcpSocketInfo),
    /// UDP-specific socket information.
    Udp(UdpSocketInfo),
}

/// TCP-specific socket information.
#[derive(Clone, Debug, PartialEq)]
pub struct TcpSocketInfo {
    pub local_addr: IpAddr,
    pub local_port: u16,
    pub remote_addr: IpAddr,
    pub remote_port: u16,
    pub state: TcpState,
}

/// UDP-specific socket information.
#[derive(Clone, Debug, PartialEq)]
pub struct UdpSocketInfo {
    pub local_addr: IpAddr,
    pub local_port: u16,
}

impl SocketInfo {
    /// Local address of this socket.
    pub fn local_addr(&self) -> IpAddr {
        match &self.protocol_socket_info {
            ProtocolSocketInfo::Tcp(s) => s.local_addr,
            ProtocolSocketInfo::Udp(s) => s.local_addr,
        }
    }

    /// Local port of this socket.
    pub fn local_port(&self) -> u16 {
        match &self.protocol_socket_info {
            ProtocolSocketInfo::Tcp(s) => s.local_port,
            ProtocolSocketInfo::Udp(s) => s.local_port,
        }
    }
}