From 2c04f993d6c74a494f4f06198765b3cf1df832ce Mon Sep 17 00:00:00 2001
From: smea <smealum@gmail.com>
Date: Tue, 23 Dec 2014 20:47:00 -0800
Subject: [PATCH] added HB service support (ninjhax only)

---
 libctru/include/3ds.h             |  1 +
 libctru/include/3ds/services/hb.h | 16 +++++++++++
 libctru/source/services/hb.c      | 48 +++++++++++++++++++++++++++++++
 3 files changed, 65 insertions(+)
 create mode 100644 libctru/include/3ds/services/hb.h
 create mode 100644 libctru/source/services/hb.c

diff --git a/libctru/include/3ds.h b/libctru/include/3ds.h
index 3366a84..1713255 100644
--- a/libctru/include/3ds.h
+++ b/libctru/include/3ds.h
@@ -30,6 +30,7 @@ extern "C" {
 #include <3ds/services/mic.h>
 #include <3ds/services/mvd.h>
 #include <3ds/services/qtm.h>
+#include <3ds/services/hb.h>
 
 #include <3ds/gpu/gx.h>
 #include <3ds/gpu/gpu.h>
diff --git a/libctru/include/3ds/services/hb.h b/libctru/include/3ds/services/hb.h
new file mode 100644
index 0000000..4c9db57
--- /dev/null
+++ b/libctru/include/3ds/services/hb.h
@@ -0,0 +1,16 @@
+#ifndef HB_H
+#define HB_H
+
+// WARNING ! THIS FILE PROVIDES AN INTERFACE TO A NON-OFFICIAL SERVICE PROVIDED BY NINJHAX
+// BY USING COMMANDS FROM THIS SERVICE YOU WILL LIKELY MAKE YOUR APPLICATION INCOMPATIBLE WITH OTHER HOMEBREW LAUNCHING METHODS
+// A GOOD WAY TO COPE WITH THIS IS TO CHECK THE OUTPUT OF initHb FOR ERRORS
+
+#include <3ds/types.h>
+
+Result initHb();
+void exitHb();
+
+Result HB_GetBootloaderAddresses(void** load3dsx, void** setArgv);
+Result HB_ReprotectMemory(u32* addr, u32 pages, u32 mode, u32* reprotectedPages);
+
+#endif
diff --git a/libctru/source/services/hb.c b/libctru/source/services/hb.c
new file mode 100644
index 0000000..8221a4e
--- /dev/null
+++ b/libctru/source/services/hb.c
@@ -0,0 +1,48 @@
+#include <3ds/types.h>
+#include <3ds/svc.h>
+#include <3ds/srv.h>
+#include <3ds/services/hb.h>
+
+static Handle hbHandle;
+
+Result initHb()
+{
+	return srvGetServiceHandle(&hbHandle, "hb:HB");
+}
+
+void exitHb()
+{
+	svcCloseHandle(hbHandle);
+}
+
+Result HB_GetBootloaderAddresses(void** load3dsx, void** setArgv)
+{
+	Result ret = 0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+
+	cmdbuf[0] = 0x00060000;
+
+	if((ret = svcSendSyncRequest(hbHandle))!=0) return ret;
+
+	if(load3dsx)*load3dsx=(void*)cmdbuf[2];
+	if(setArgv)*setArgv=(void*)cmdbuf[3];
+	
+	return (Result)cmdbuf[1];
+}
+
+Result HB_ReprotectMemory(u32* addr, u32 pages, u32 mode, u32* reprotectedPages)
+{
+	Result ret = 0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+
+	cmdbuf[0] = 0x000900C0;
+	cmdbuf[1] = (u32)addr;
+	cmdbuf[2] = pages;
+	cmdbuf[3] = mode;
+
+	if((ret = svcSendSyncRequest(hbHandle))!=0) return ret;
+
+	if(reprotectedPages)*reprotectedPages=(u32)cmdbuf[2];
+	
+	return (Result)cmdbuf[1];
+}