From aa503c46c384c13fb02bf0cc98438336a161fcd4 Mon Sep 17 00:00:00 2001
From: Isaac Parker <parrotmac@gmail.com>
Date: Sun, 28 Jun 2020 14:03:31 -0600
Subject: Bind to random port when port 0 specified

---
 src/args.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/args.rs b/src/args.rs
index 7e30ee1..a5bcfea 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -1,6 +1,7 @@
 use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
 use std::path::PathBuf;
 use structopt::StructOpt;
+use port_check::free_local_port;
 
 use crate::auth;
 use crate::errors::ContextualError;
@@ -170,10 +171,15 @@ pub fn parse_args() -> crate::MiniserveConfig {
 
     let path_explicitly_chosen = args.path.is_some();
 
+    let port = match args.port {
+        0 => free_local_port().expect("no free ports available"),
+        _ => args.port,
+    };
+
     crate::MiniserveConfig {
         verbose: args.verbose,
         path: args.path.unwrap_or_else(|| PathBuf::from(".")),
-        port: args.port,
+        port,
         interfaces,
         auth: args.auth,
         path_explicitly_chosen,
-- 
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