slirp: Remove some type casts caused by bad declaration of x.tp_buf

x.tp_buf was declared as a uint8_t array, but always used as
a char array (which needed a lot of type casts).

The patch includes these changes:

* Fix declaration of x.tp_buf and remove all type casts.

* Use offsetof() to get the offset of x.tp_buf.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/tftp.h b/tftp.h
index 2663d1c..3412e81 100644
--- a/tftp.h
+++ b/tftp.h
@@ -26,7 +26,7 @@ struct tftp_t {
             uint16_t tp_error_code;
             uint8_t tp_msg[512];
         } tp_error;
-        uint8_t tp_buf[512 + 2];
+        char tp_buf[512 + 2];
     } x;
 };