From 02679eb5f9ee015f13c545d865c623a9b898fc0b Mon Sep 17 00:00:00 2001
From: steviez <steven@solana.com>
Date: Mon, 15 May 2023 14:32:59 -0500
Subject: [PATCH] ledger-tool: Move ELF magic numbers into constant with
 comment (#31655)

---
 ledger-tool/src/program.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ledger-tool/src/program.rs b/ledger-tool/src/program.rs
index 30a1b6a28e..070c9946c8 100644
--- a/ledger-tool/src/program.rs
+++ b/ledger-tool/src/program.rs
@@ -45,6 +45,10 @@ use {
     },
 };
 
+// The ELF magic number [ELFMAG0, ELFMAG1, ELFGMAG2, ELFMAG3] as defined by
+// https://github.com/torvalds/linux/blob/master/include/uapi/linux/elf.h
+const ELF_MAGIC_NUMBER: [u8; 4] = [0x7f, 0x45, 0x4c, 0x46];
+
 #[derive(Serialize, Deserialize, Debug)]
 struct Account {
     key: String,
@@ -333,7 +337,7 @@ fn load_program<'a>(
     let mut magic = [0u8; 4];
     file.read_exact(&mut magic).unwrap();
     file.rewind().unwrap();
-    let is_elf = magic == [0x7f, 0x45, 0x4c, 0x46];
+    let is_elf = magic == ELF_MAGIC_NUMBER;
     let mut contents = Vec::new();
     file.read_to_end(&mut contents).unwrap();
     let slot = Slot::default();