bug#8722: dbusbind.c fixes for integer issues, e.g., integer overflow

[Michael Albinus]

Paul Eggert <eggert@cs.ucla.edu> writes:

> I found some integer overflow issues in dbusbind.c and came up
> with the following patch which I'd like to install.  This doesn't
> fix all the integer overflow problems in dbusbind.c, but it makes
> some progress anyway.

On a raw look, it seems to be OK. Minor remark: Why do you need
xd_invalid_serial? You could call instead

  XD_SIGNAL2 (build_string ("Invalid dbus serial"), x);

which returns a `dbus-error', and which is more sensible when reading
DBus events.

Best regards, Michael.