From: utzoo!decvax!cca!mark.umcp-cs@UDel-Relay@sri-unix Newsgroups: net.unix-wizards Title: TIOCIOANS, TIOCSIGNAL Article-I.D.: sri-unix.3113 Posted: Sat Sep 4 18:39:04 1982 Received: Wed Sep 8 06:26:09 1982 From: Mark WeiserDate: 1 Sep 82 22:38:12-EDT (Wed) TIOCIOANS and TIOCSIGNAL are for multiplexed files, a wonderful feature of Unix which allows a user program to pretend to be the tty driver. Berkeley says it will go away in 4.2, and I hope they provide something with the almost total transparency these things have.