On Wed, 23 Jul 2003 15:29:03 -0400 (EDT)
Glenn Fowler [off-list ref] wrote:

linux has ioctl(I_PEEK) for stream devices and recv() for sockets,
and neither of these work on pipes; if there is a linux alternative
for pipes then we'd be glad to use it

Alan mentioned the pure-socket namespace we have for named unix
sockets, but I don't think you can actually use it for your
problem unfortunately.