This is on a fully patched/updated Mavericks. I built the code from scratch (./configure --disable-credssp --disable-smartcard) and installed it. When connecting to my VirtualBox machines (rdesktop -x -m -g 1280x1024 172.16.1.246:9000, but other permutations fail the same way) it connects fine, I get to see the machines video, but neither the mouse nor the keyboard work.
I can connect fine using Cord, or rdesktop 1.7.1, so something seems to have been broken recently. Happy to provide additional logs or try a patch.