add ugly fmt displaying like readelf

1 files changed, 10 insertions, 2 deletions

diff --git a/src/main.rs b/src/main.rs
index 7a189bf..3033ece 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -16,10 +16,18 @@ impl Elf {
             header
         }
     }
-} 
+}
+
+// readelf behavior here
+impl std::fmt::Display for Elf {
+    fn fmt(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
+        formatter.write_str("ELF Header:\n");
+        formatter.write_fmt(format_args!("{}", self.header))
+    }
+}
 
 fn main() {
     let data = include_bytes!("../elf");
     let elf = Elf::new(&data[..]);
-    println!("{:?}", elf);
+    println!("{}", elf);
 }