/* We need to see the begin sequence first. When we receive `ESCAPE
* PKT_BEGIN', we set `package_buffer_pos' to zero to signal that
* the beginning of the package has been found. */
/* We need to see the begin sequence first. When we receive `ESCAPE
* PKT_BEGIN', we set `package_buffer_pos' to zero to signal that
* the beginning of the package has been found. */