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Date: Wed, 8 Apr 1992 08:18:30 -0500
From: Chet Ramey <chet@odin.INS.CWRU.Edu>
To: schwartz@groucho.cs.psu.edu
Subject: Re: signal blocking?
Cc: arnold@cc.gatech.edu, rc@archone.tamu.edu, chet@odin.INS.CWRU.Edu
Reply-To: chet@po.CWRU.Edu
In-Reply-To: Message from schwartz@groucho.cs.psu.edu of Tue, 7 Apr 1992 18:24:45 -0500
Message-Id: <9204081318.AA26738.SM@odin.INS.CWRU.Edu>
Read-Receipt-To: chet@po.CWRU.Edu

> | Get this.  The function works ok with the version of rc linked with
> | the readline library, and bombs on the version without it.  Sigh.
> 
> That's because readline ignores the return code from read(), while
> Byron carefully checks it.

Oh, please, give me a break.  Why not check these things out before
shooting from the hip?

>From rl_getc:

      result = read (fileno (stream), &c, sizeof (unsigned char));

      if (result == sizeof (unsigned char))
        return (c);

      /* If zero characters are returned, then the file that we are
         reading from is empty!  Return EOF in that case. */
      if (result == 0)
        return (EOF);

		... and so on ...

Chet

--
``The use of history as therapy means the corruption of history as history.''
	-- Arthur Schlesinger

Chet Ramey, Case Western Reserve University	Internet: chet@po.CWRU.Edu