March 20, 2001, 12:17 PM —
Prior to Solaris 2.6, sockets were an abstraction that existed at the library level. That is, much of the socket state and socket semantics support were provided within the libsocket library. The kernel's view of a process's socket connection entailed a file descriptor and linkage to a Stream head, which provided the path to the underlying transport. The disparity between the library socket state and the kernel's view was one of several reasons a new implementation was introduced in Solaris 2.6.
