On Mon, 2013-05-13 at 16:32 +0200, Petr Spacek wrote: > + if ((ip = inet_addr(ip_str)) == INADDR_NONE) { This kind of construct is hard to read and debug in gdb I would suggest you do: ip = inet_addr(ip_str); if (ip == INADDER_NONE) { Simo. -- Simo Sorce * Red Hat, Inc * New York