From c3b0b63471ee5309ea5040ad98f21919022ac9c7 Mon Sep 17 00:00:00 2001
From: SciresM <Sciresm@gmail.com>
Date: Sat, 7 Mar 2020 03:40:02 -0800
Subject: [PATCH] fs: add IsSignedSystemPartitionOnSdCardValid (#381)

---
 nx/include/switch/services/fs.h | 2 ++
 nx/source/services/fs.c         | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/nx/include/switch/services/fs.h b/nx/include/switch/services/fs.h
index 0da76c50..d570ce84 100644
--- a/nx/include/switch/services/fs.h
+++ b/nx/include/switch/services/fs.h
@@ -345,6 +345,8 @@ Result fsOpenDataStorageByDataId(FsStorage* out, u64 dataId, NcmStorageId storag
 Result fsOpenDeviceOperator(FsDeviceOperator* out);
 Result fsOpenSdCardDetectionEventNotifier(FsEventNotifier* out);
 
+Result fsIsSignedSystemPartitionOnSdCardValid(bool *out);
+
 /// Retrieves the rights id corresponding to the content path. Only available on [2.0.0+].
 Result fsGetRightsIdByPath(const char* path, FsRightsId* out_rights_id);
 
diff --git a/nx/source/services/fs.c b/nx/source/services/fs.c
index ba5bda71..ebeef80f 100644
--- a/nx/source/services/fs.c
+++ b/nx/source/services/fs.c
@@ -402,6 +402,13 @@ Result fsOpenSdCardDetectionEventNotifier(FsEventNotifier* out) {
     return _fsCmdGetSession(&g_fsSrv, &out->s, 500);
 }
 
+Result fsIsSignedSystemPartitionOnSdCardValid(bool *out) {
+    if (!hosversionBetween(4, 8))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _fsCmdNoInOutBool(&g_fsSrv, out, 640);
+}
+
 Result fsGetRightsIdByPath(const char* path, FsRightsId* out_rights_id) {
     if (hosversionBefore(2,0,0))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);