fs: Add FileExists

Author: samueldr

arm9/include/fs.h

@@ -13,6 +13,9 @@ const char* GetWorkDir();
 /** Checks if there is enough space free on the SD card **/
 bool DebugCheckFreeSpace(size_t required);
 
+/** Checks path exists */
+bool FileExists(const char* path);
+
 /** Opens existing files */
 bool FileOpen(const char* path);
 bool DebugFileOpen(const char* path);

arm9/source/fs.c

@@ -48,6 +48,14 @@ bool DebugCheckFreeSpace(size_t required)
     return true;
 }
 
+bool FileExists(const char* path)
+{
+	FILINFO fno;
+
+	return f_stat(path, &fno) == FR_OK;
+}
+
+
 bool FileOpen(const char* path)
 {
     unsigned flags = FA_READ | FA_WRITE | FA_OPEN_EXISTING;