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.Dd March 17, 2008 .Dt STREAMS 4 i386 .Os .Sh NAME .Nm streams .Nd System V STREAMS networking ABI support .Sh SYNOPSIS To compile support for this ABI into the kernel, place the following line in your kernel configuration file: d -ragged -offset indent .Cd "device streams" .Ed
p Alternatively, to load the ABI as a module at boot time, place the following line in .Xr loader.conf 5 : d -literal -offset indent streams_load="YES" .Ed .Sh DESCRIPTION The .Nm module provides limited System V Release 4 STREAMS interprocess communication ABI (application binary interface) compatibility for userland applications.
p Internally, .Nm provides STREAMS handles by using socket creation kernel routines, and adding state-tracking information to the socket to permit manipulation by STREAMS emulation code in .Xr svr4 4 . Hence, opening a stream device produces a result similar to what would be obtained by calling .Xr socket 2 .
p Applications should never use this interface directly: STREAMS emulation is only provided as a service to support ABI requirements in the SVR4 environment which .Xr svr4 4 needs to present to client binaries. .Sh SEE ALSO .Xr svr4 4 .Sh HISTORY System V Release 4 ABI support first appeared in .Fx 4.0 . The ABI was ported from an equivalent facility present in .Nx 1.3 written by Christos Zoulas. .Sh BUGS This whole interface is a crude hack to produce STREAMS semantics through emulation over sockets.
p Programmers who hope to be able to use this interface to provide SVR4 STREAMS services to x applications will be sorely disappointed.