lib/socket: fix `NativeSocket::write_byte`

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/socket/socket_c.nit b/lib/socket/socket_c.nit
index a574485..518fcb5 100644 (file)
--- a/lib/socket/socket_c.nit
+++ b/lib/socket/socket_c.nit
@@ -134,7 +134,8 @@ extern class NativeSocket `{ int* `}
 
        # Write `value` as a single byte
        fun write_byte(value: Int): Int `{
-               return write(*recv, &value, 1);
+               unsigned char byt = (unsigned char)value;
+               return write(*recv, &byt, 1);
        `}
 
        fun read: String import NativeString.to_s_with_length `{