From a729a5b626b155e3f04ca1f11c5e51e84e2b093e Mon Sep 17 00:00:00 2001
From: Malte Meiboom <malte@netropol.de>
Date: Wed, 12 Nov 2025 12:10:03 +0100
Subject: [PATCH] Add anyhow and configurable TcpListener

- add anyhow to Cargo.toml
- make the connection parameter (for the TcpListener) configurable
---
 Cargo.lock         | 1 +
 Cargo.toml         | 1 +
 config/config.toml | 1 +
 src/config.rs      | 1 +
 src/daemon/mod.rs  | 6 ++++--
 src/main.rs        | 2 +-
 6 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 0c3dfb5..45dbfa7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -164,6 +164,7 @@ checksum = "135b12329e5e3ce057a9f972339ea52bc954fe1e9358ef27f95e89716fbc5424"
 name = "husk"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
  "bytes",
  "indymilter",
  "log",
diff --git a/Cargo.toml b/Cargo.toml
index ac6265b..2ac0421 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,6 +11,7 @@ categories = ["cryptography", "email"]
 rust-version = "1.79"
 
 [dependencies]
+anyhow = "1.0.100"
 bytes = "1.10.1"
 indymilter = "0.3.0"
 log = "0.4.27"
diff --git a/config/config.toml b/config/config.toml
index a42a11d..cea6249 100644
--- a/config/config.toml
+++ b/config/config.toml
@@ -1,5 +1,6 @@
 #
 # Husk config file
 #
+connection = "localhost:3000"
 
 logfile_config = "./config/log4rs.yml"
diff --git a/src/config.rs b/src/config.rs
index 428e704..be24d9c 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -7,6 +7,7 @@ use serde_derive::Deserialize;
 
 #[derive(Deserialize, Debug)]
 pub struct HuskConfig {
+    pub connection: String,
     logfile_config: Option<String>,
 }
 
diff --git a/src/daemon/mod.rs b/src/daemon/mod.rs
index a00909d..b0f48bd 100644
--- a/src/daemon/mod.rs
+++ b/src/daemon/mod.rs
@@ -4,6 +4,7 @@
 // the actual daemon
 //
 
+use anyhow;
 use bytes::Bytes;
 use std::ffi::CString;
 use tokio::signal;
@@ -24,14 +25,15 @@ use indymilter::{
 };
 
 use crate::types::husk_context::HuskContext;
+use crate::config::HuskConfig;
 
 pub struct Daemon { }
 
 impl Daemon {
 
-    pub async fn run() -> Result<(), ()> {
+    pub async fn run(config: &HuskConfig) -> anyhow::Result<()> {
 
-        let listener = TcpListener::bind("localhost:3000")
+        let listener = TcpListener::bind(&config.connection)
             .await
             .expect(" opening milter socket");
 
diff --git a/src/main.rs b/src/main.rs
index 794da84..cf0bfc4 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -30,7 +30,7 @@ async fn main() {
 
     log::info!("starting...");
 
-    match Daemon::run().await {
+    match Daemon::run(&husk_config).await {
         Ok(_) => {
             println!("exiting...");
         },