Fixed seek returns + edited position to use lseek.

Author: P-R-O-C-H-Y

libraries/FS/src/vfs_api.cpp

@@ -434,17 +434,18 @@ bool VFSFileImpl::seek(uint32_t pos, SeekMode mode)
     if (res < 0) {
         // an error occurred
         log_d("FILE SEEK ERROR OCCURED");
-        return 1; //return error -> for seek its all above 0
+        return 0; //return error -> for lseek its all above 0
     }
-    return 0; //return success -> for fseek its 0
+    return 1; //return success -> for fseek its 0
 }
 
 size_t VFSFileImpl::position() const
 {
     if(_isDirectory || !_f) {
         return 0;
     }
-    return ftell(_f);
+    return lseek(fileno(_f), 0, SEEK_CUR);
+    //return ftell(_f); // old implementation
 }
 
 size_t VFSFileImpl::size() const