From 691c5092aafe3f1fc6514fc6d0ed63ca19aa2b22 Mon Sep 17 00:00:00 2001
From: Joel16 <sauskethunderkid@gmail.com>
Date: Fri, 27 Oct 2017 20:23:54 -0500
Subject: [PATCH] Add CFGI_GetLocalFriendCodeSeedData

---
 libctru/include/3ds/services/cfgu.h |  6 ++++++
 libctru/source/services/cfgu.c      | 15 +++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/libctru/include/3ds/services/cfgu.h b/libctru/include/3ds/services/cfgu.h
index cc73667..d8db9dd 100644
--- a/libctru/include/3ds/services/cfgu.h
+++ b/libctru/include/3ds/services/cfgu.h
@@ -183,6 +183,12 @@ Result CFGI_VerifySigSecureInfo(void);
  */
 Result CFGI_SecureInfoGetSerialNumber(u8 *serial);
 
+/**
+ * @brief Gets the 0x110-byte buffer containing the data for the LocalFriendCodeSeed.
+ * @param data Pointer to output the buffer. (The size must be at least 0x110-bytes)
+ */
+Result CFGI_GetLocalFriendCodeSeedData(u8 *data);
+
 /**
  * @brief Gets the 64-bit local friend code seed.
  * @param seed Pointer to write the friend code seed to.
diff --git a/libctru/source/services/cfgu.c b/libctru/source/services/cfgu.c
index 9dcd0a4..cc960bc 100644
--- a/libctru/source/services/cfgu.c
+++ b/libctru/source/services/cfgu.c
@@ -345,6 +345,21 @@ Result CFGI_SecureInfoGetSerialNumber(u8 *serial)
 	return (Result)cmdbuf[1];
 }
 
+Result CFGI_GetLocalFriendCodeSeedData(u8 *data)
+{
+	Result ret = 0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+
+	cmdbuf[0] = IPC_MakeHeader(0x404,1,2); // 0x4040042
+	cmdbuf[1] = (u32)0x110;
+	cmdbuf[2] = IPC_Desc_Buffer((u32)0x110, IPC_BUFFER_W);
+	cmdbuf[3] = (u32)data;
+
+	if(R_FAILED(ret = svcSendSyncRequest(cfguHandle)))return ret;
+
+	return (Result)cmdbuf[1];
+}
+
 Result CFGI_GetLocalFriendCodeSeed(u64* seed)
 {
 	Result ret = 0;