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From: coleman@cam.nist.gov (Sean Sheridan Coleman X5672)
Newsgroups: comp.unix.questions,comp.unix.wizards,comp.unix.internals
Subject: determining if DCE device is ready
Message-ID: <8272@alpha.cam.nist.gov>
Date: 23 Apr 91 16:26:47 GMT
Organization: National Institute of Standards & Technology, Gaithersburg, MD
Lines: 13

I am working on a program that uses the tty serial lines.  i 
would like to be able from my program to sense if the DCE (Data
Communication Equipment) is at the other end and running, ie 
i dont want to have the program connect to a port that has 
nothing plugged into it. Is there a way to see if DATA CARRIER
DETECT is high at the DCE end from a C program.


Thanks in advanced`

Sean Coleman
NIST
coleman@bldrdoc.gov