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Path: utzoo!linus!philabs!mcvax!enea!erix!per
From: per@erix.UUCP (Per Hedeland XT/DU)
Newsgroups: net.unix,net.unix-wizards
Subject: Re: Pipe buffering query
Message-ID: <119@erix.UUCP>
Date: Fri, 25-Nov-83 06:06:12 EST
Article-I.D.: erix.119
Posted: Fri Nov 25 06:06:12 1983
Date-Received: Sun, 27-Nov-83 03:02:56 EST
References: <254@bnl.UUCP>
Organization: L M Ericsson, Stockholm, Sweden
Lines: 10

The problem is not the buffering in the pipe, but the buffering done by
the stdio package when standard output isn't a terminal.  Provided you
can modify the source code of the filter, the fix is simple. Just insert:
	setbuf(stdout, NULL);
before you start writing to stdout; this makes stdout unbuffered.

(BTW, 'cat -u | mail' works (almost) fine.)

Per Hedeland
...{!mcvax}!enea!erix!per