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Do not attempt to serve on "well-known" ports (#824)

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Jochen Kupperschmidt 2019-10-25 00:47:24 +02:00 committed by Vincent Prouillet
parent 243702e2c2
commit b3bc8a8896
1 changed files with 3 additions and 1 deletions
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4
components/utils/src/net.rs
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@ -1,7 +1,9 @@
use std::net::TcpListener; use std::net::TcpListener;
pub fn get_available_port(avoid: u16) -> Option<u16> { pub fn get_available_port(avoid: u16) -> Option<u16> {
(1000..9000).find(|port| *port != avoid && port_is_available(*port)) // Start after "well-known" ports (0–1023) as they require superuser
// privileges on UNIX-like operating systems.
(1024..9000).find(|port| *port != avoid && port_is_available(*port))
} }
pub fn port_is_available(port: u16) -> bool { pub fn port_is_available(port: u16) -> bool {