From f3bf1d626c7d370fe859d51af6165cadad814b2f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9o=20Lam?= <leo@innovatetechnologi.es>
Date: Sun, 11 Jun 2017 22:01:41 +0200
Subject: [PATCH] IOS/ES: Add helper function ReadCertStore

---
 Source/Core/Core/IOS/ES/ES.cpp | 13 +++++++++++++
 Source/Core/Core/IOS/ES/ES.h   |  1 +
 2 files changed, 14 insertions(+)

diff --git a/Source/Core/Core/IOS/ES/ES.cpp b/Source/Core/Core/IOS/ES/ES.cpp
index 9a6444d362..0c029ede92 100644
--- a/Source/Core/Core/IOS/ES/ES.cpp
+++ b/Source/Core/Core/IOS/ES/ES.cpp
@@ -781,6 +781,19 @@ bool ES::IsIssuerCorrect(VerifyContainerType type, const IOS::ES::CertReader& is
   }
 }
 
+ReturnCode ES::ReadCertStore(std::vector<u8>* buffer) const
+{
+  const std::string store_path = Common::RootUserPath(Common::FROM_SESSION_ROOT) + "/sys/cert.sys";
+  File::IOFile store_file{store_path, "rb"};
+  if (!store_file)
+    return FS_ENOENT;
+
+  buffer->resize(store_file.GetSize());
+  if (!store_file.ReadBytes(buffer->data(), buffer->size()))
+    return ES_SHORT_READ;
+  return IPC_SUCCESS;
+}
+
 ReturnCode ES::WriteNewCertToStore(const IOS::ES::CertReader& cert)
 {
   const std::string store_path = Common::RootUserPath(Common::FROM_SESSION_ROOT) + "/sys/cert.sys";
diff --git a/Source/Core/Core/IOS/ES/ES.h b/Source/Core/Core/IOS/ES/ES.h
index 52b7b7612c..8b18811ac1 100644
--- a/Source/Core/Core/IOS/ES/ES.h
+++ b/Source/Core/Core/IOS/ES/ES.h
@@ -319,6 +319,7 @@ private:
     UpdateCertStore,
   };
   bool IsIssuerCorrect(VerifyContainerType type, const IOS::ES::CertReader& issuer_cert) const;
+  ReturnCode ReadCertStore(std::vector<u8>* buffer) const;
   ReturnCode WriteNewCertToStore(const IOS::ES::CertReader& cert);
   ReturnCode VerifyContainer(VerifyContainerType type, VerifyMode mode,
                              const IOS::ES::SignedBlobReader& signed_blob,