netstat-esr

Cross-platform library to retrieve network sockets information. Aims to be optimal by using low-level OS APIs instead of command line utilities. Provides unified interface and returns data structures which may have additional fields depending on platform.

Example

extern crate netstat;

use netstat::*;

fn main() {
    let af_flags = AddressFamilyFlags::IPV4 | AddressFamilyFlags::IPV6;
    let proto_flags = ProtocolFlags::TCP | ProtocolFlags::UDP;
    let sockets_info = get_sockets_info(af_flags, proto_flags).unwrap();
    for si in sockets_info {
        println!("Active connection: {}",si);
    }
}

Details

• On Windows, library uses GetExtendedTcpTable & GetExtendedUdpTable (iphlpapi)
• On Linux, it uses NETLINK_INET_DIAG protocol and performs pid lookup by traversing procfs
• On OS X, it uses sysctl system calls with "net.inet.tcp.pcblist" header to populate active connections. Got tech details from FreeBSD version of [netstat][https://web.mit.edu/freebsd/head/usr.bin/systat/netstat.c]. Pid lookup is not ready yet!

License

Licensed under either of:

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.