libossp-sa-dev 1.2.6-1ubuntu1 (i386 binary) in ubuntu vivid

 OSSP sa is an abstraction library for the Unix socket application
 programming interface (API) featuring stream and datagram oriented
 communication over Unix Domain and Internet Domain (TCP and UDP)
 sockets. It provides the following key features: address abstraction
 (local, IPv4, and IPv6), type abstraction, I/O timeouts, I/O stream
 buffering and convenience I/O functions.
 .
 More about the project can be found at
 http://www.ossp.org/pkg/lib/sa