From 1fa6614cd55e79add99c9ae398d76806abda9d36 Mon Sep 17 00:00:00 2001
From: Ty Lamontagne <amfobes@gmail.com>
Date: Mon, 22 May 2023 15:09:21 -0400
Subject: [PATCH] Achievements: Implement the ELF suffix hack from CDVD when
 hashing

---
 pcsx2/Achievements.cpp | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/pcsx2/Achievements.cpp b/pcsx2/Achievements.cpp
index 496ece1f0b..43192b964e 100644
--- a/pcsx2/Achievements.cpp
+++ b/pcsx2/Achievements.cpp
@@ -1359,8 +1359,19 @@ std::optional<std::vector<u8>> Achievements::ReadELFFromCurrentDisc(const std::s
 	std::optional<std::vector<u8>> ret;
 	try
 	{
+		// ELF suffix hack. Taken from CDVD::loadElf
+		// MLB2k6 has an elf whose suffix is actually ;2
+		std::string filepath(elf_path);
+		const std::string::size_type semi_pos = filepath.rfind(';');
+		if (semi_pos != std::string::npos && std::string_view(filepath).substr(semi_pos) != ";1")
+		{
+			Console.Warning("(Achievements) Non-conforming version suffix (%s) detected and replaced.", elf_path.c_str());
+			filepath.erase(semi_pos);
+			filepath += ";1";
+		}
+
 		IsoFSCDVD isofs;
-		IsoFile file(isofs, elf_path);
+		IsoFile file(isofs, filepath);
 		const u32 size = file.getLength();
 
 		ret = std::vector<u8>();