From 36a85debe931f2915e1f4818c102cde6388bae58 Mon Sep 17 00:00:00 2001
From: Joel16 <sauskethunderkid@gmail.com>
Date: Fri, 27 Oct 2017 11:29:21 -0500
Subject: [PATCH] Add CFGI_GetLocalFriendCodeSeed

---
 libctru/include/3ds/services/cfgu.h |  6 ++++++
 libctru/source/services/cfgu.c      | 14 ++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/libctru/include/3ds/services/cfgu.h b/libctru/include/3ds/services/cfgu.h
index 426012b..cc73667 100644
--- a/libctru/include/3ds/services/cfgu.h
+++ b/libctru/include/3ds/services/cfgu.h
@@ -182,3 +182,9 @@ Result CFGI_VerifySigSecureInfo(void);
  * @param serial Pointer to output the serial to. (This is normally 0xF)
  */
 Result CFGI_SecureInfoGetSerialNumber(u8 *serial);
+
+/**
+ * @brief Gets the 64-bit local friend code seed.
+ * @param seed Pointer to write the friend code seed to.
+ */
+Result CFGI_GetLocalFriendCodeSeed(u64* seed);
diff --git a/libctru/source/services/cfgu.c b/libctru/source/services/cfgu.c
index f9dced2..04ea902 100644
--- a/libctru/source/services/cfgu.c
+++ b/libctru/source/services/cfgu.c
@@ -344,3 +344,17 @@ Result CFGI_SecureInfoGetSerialNumber(u8 *serial)
 
 	return (Result)cmdbuf[1];
 }
+
+Result CFGI_GetLocalFriendCodeSeed(u64* seed)
+{
+	Result ret = 0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+
+	cmdbuf[0] = IPC_MakeHeader(0x405,0,0); // 0x4050000
+
+	if(R_FAILED(ret = svcSendSyncRequest(cfguHandle)))return ret;
+
+	*seed = (u64)cmdbuf[2] | (u64)cmdbuf[3] << 32;
+
+	return (Result)cmdbuf[1];
+}