From f44472fd0a237655c5527c24fb568b83f992de45 Mon Sep 17 00:00:00 2001
From: d0k3 <tore.anon@gmail.com>
Date: Tue, 15 Mar 2016 16:25:48 +0100
Subject: [PATCH] Also check write permissions for creating folders / renaming
 files

Plus: Don't allow renaming virtual FAT entries
---
 source/fs.c      | 2 ++
 source/godmode.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/source/fs.c b/source/fs.c
index a2c9a54..9d092aa 100644
--- a/source/fs.c
+++ b/source/fs.c
@@ -291,6 +291,7 @@ bool PathDelete(const char* path) {
 bool PathRename(const char* path, const char* newname) {
     char npath[256]; // 256 is the maximum length of a full path
     char* oldname = strrchr(path, '/');
+    if (!CheckWritePermissions(path)) return false;
     if (!oldname) return false;
     oldname++;
     strncpy(npath, path, oldname - path);
@@ -300,6 +301,7 @@ bool PathRename(const char* path, const char* newname) {
 
 bool DirCreate(const char* cpath, const char* dirname) {
     char npath[256]; // 256 is the maximum length of a full path
+    if (!CheckWritePermissions(cpath)) return false;
     snprintf(npath, 255, "%s/%s", cpath, dirname);
     return (f_mkdir(npath) == FR_OK);
 }
diff --git a/source/godmode.c b/source/godmode.c
index 0f8abcc..cf28e34 100644
--- a/source/godmode.c
+++ b/source/godmode.c
@@ -270,7 +270,7 @@ u32 GodMode() {
                 ClearScreenF(true, false, COLOR_STD_BG);
             }
         } else { // switched command set
-            if (pad_state & BUTTON_X) { // rename a file
+            if ((pad_state & BUTTON_X) && cursor) { // rename a file
                 char newname[256];
                 char namestr[20+1];
                 TruncateString(namestr, current_dir->entry[cursor].name, 20, 12);