From 944ed573c6f69e34c56179f98efd71b05e2bb02b Mon Sep 17 00:00:00 2001
From: taitep <taitep@taitep.se>
Date: Sun, 21 Dec 2025 19:06:23 +0100
Subject: Switch the current binary to use anyhow errors and add a proper
 argument number check

---
 src/main.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'src/main.rs')

diff --git a/src/main.rs b/src/main.rs
index 67186bb..5e20b1a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -19,6 +19,8 @@ use trve::{
     mem::{DeviceEntry, MemAccessFault, MemConfig, MemDeviceInterface, PageNum, Ram},
 };
 
+use anyhow::{Result, bail};
+
 use crate::basic_uart::BasicUart;
 
 fn read_file_to_buffer(path: &str, buffer: &mut [u8]) -> io::Result<usize> {
@@ -41,14 +43,15 @@ fn read_file_to_buffer(path: &str, buffer: &mut [u8]) -> io::Result<usize> {
     Ok(total_read)
 }
 
-fn main() -> Result<(), Box<dyn Error>> {
+fn main() -> Result<()> {
     let mut ram = Ram::try_new(16 * 1024 * 1024 / 4096)?;
     let buf = ram.buf_mut();
 
     let args: Vec<String> = env::args().collect();
 
     if args.len() != 2 {
-        eprintln!("USAGE: trve <ram_image>")
+        eprintln!("USAGE: trve <ram_image>");
+        bail!("Wrong number of arguments");
     }
 
     read_file_to_buffer(&args[1], buf)?;
-- 
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