From 532d3c6a63760c49f3374d97217b33a47ddd8873 Mon Sep 17 00:00:00 2001
From: condret <condret@runas-racer.com>
Date: Thu, 23 Oct 2014 13:16:32 +0200
Subject: [PATCH] make r_io_mwrite check map->flags

---
 libr/io/vio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libr/io/vio.c b/libr/io/vio.c
index cc5aa9d13e..4b65059fd5 100644
--- a/libr/io/vio.c
+++ b/libr/io/vio.c
@@ -267,6 +267,8 @@ R_API int r_io_mwrite (RIO *io, int fd, ut64 maddr, ut8 *buf, int len) {
 		write_bytes -= d;
 		maddr += d;
 	}
+	if (!(map->flags & R_IO_WRITE))						//check if the map allows writing
+		return write_bytes;
 	paddr = maddr - map->from + map->delta;
 	desc = io->desc;
 	io->desc = r_io_desc_get (io, fd);