From 67923556da783eb2d764fcae0ff287ee54d84907 Mon Sep 17 00:00:00 2001
From: d0k3 <tore.anon@gmail.com>
Date: Thu, 8 Dec 2016 22:19:42 +0100
Subject: [PATCH] Show a warning when a file is currently locked (on A button)

---
 source/common.h  | 2 +-
 source/fs.c      | 9 +++++++++
 source/fs.h      | 3 +++
 source/godmode.c | 4 +++-
 4 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/source/common.h b/source/common.h
index 1d03b13..b7b1e85 100644
--- a/source/common.h
+++ b/source/common.h
@@ -38,7 +38,7 @@
     (((v) % (a)) ? ((v) + (a) - ((v) % (a))) : (v))
     
 // GodMode9 version
-#define VERSION "0.8.3"
+#define VERSION "0.8.4"
 
 // input / output paths
 #define INPUT_PATHS     "0:", "0:/files9", "0:/Decrypt9"
diff --git a/source/fs.c b/source/fs.c
index e446515..fdb1cb9 100644
--- a/source/fs.c
+++ b/source/fs.c
@@ -402,6 +402,15 @@ u32 GetWritePermissions() {
     return write_permissions;
 }
 
+bool FileCheck(const char* path) {
+    FIL file;
+    if (PathToNumFSA(path) < 0) return true;
+    if (f_open(&file, path, FA_READ | FA_OPEN_EXISTING) == FR_OK) {
+        f_close(&file);
+        return true;
+    } else return false;
+}
+
 bool FileSetData(const char* path, const u8* data, size_t size, size_t foffset, bool create) {
     int drvtype = DriveType(path);
     if (!CheckWritePermissions(path)) return false;
diff --git a/source/fs.h b/source/fs.h
index e04df08..cc6b352 100644
--- a/source/fs.h
+++ b/source/fs.h
@@ -64,6 +64,9 @@ bool SetWritePermissions(u32 perm, bool add_perm);
 /** Get write permissions */
 u32 GetWritePermissions();
 
+/** True if file exists and is not locked, false otherwise **/
+bool FileCheck(const char* path);
+
 /** Create / open file and write the provided data to it **/
 bool FileSetData(const char* path, const u8* data, size_t size, size_t foffset, bool create);
 
diff --git a/source/godmode.c b/source/godmode.c
index 2d318c0..41e44ba 100644
--- a/source/godmode.c
+++ b/source/godmode.c
@@ -700,7 +700,9 @@ u32 GodMode() {
                 (filetype == GAME_NCCH) ? "Mount as NCCH image" : "???";
             if (searchdrv > 0) optionstr[searchdrv-1] = "Open containing folder";
             
-            int user_select = ShowSelectPrompt(n_opt, optionstr, pathstr);
+            int user_select = 0;
+            if (!FileCheck(curr_entry->path)) ShowPrompt(false, "%s\nFile is currently locked", pathstr);
+            else user_select = ShowSelectPrompt(n_opt, optionstr, pathstr);
             if (user_select == hexviewer) { // -> show in hex viewer
                 HexViewer(curr_entry->path);
             } else if (user_select == calcsha) { // -> calculate SHA-256