From owner-freebsd-bugs  Wed Oct 24  5:10: 7 2001
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Date: Wed, 24 Oct 2001 05:10:01 -0700 (PDT)
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From: Ian Dowse <iedowse@maths.tcd.ie>
Subject: Re: bin/30993: xxgdb cannot open source file 
Reply-To: Ian Dowse <iedowse@maths.tcd.ie>
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The following reply was made to PR bin/30993; it has been noted by GNATS.

From: Ian Dowse <iedowse@maths.tcd.ie>
To: Jin Guojun <j_guojun@lbl.gov>
Cc: freebsd-gnats-submit@FreeBSD.org
Subject: Re: bin/30993: xxgdb cannot open source file 
Date: Wed, 24 Oct 2001 13:00:59 +0100

 In message <3BD616EC.40F97564@lbl.gov>, Jin Guojun writes:
 >789         XtSetValues(sourceWindow, args, n);
 >(gdb) s
 >Warning: Cannot open file /tmp/x.c; Resource temporarily unavailable
 
 Something within the X code must be interpreting a zero return from
 open() as a failure - I've seen this with xxgdb, but rather than
 digging into the X code I just changed xxgdb to not leave file
 descriptors 0 and 1 closed. A patch is below.
 
 Ian
 
 --- orig/calldbx.c	Wed Oct 24 12:38:41 2001
 +++ calldbx.c	Wed Oct 24 12:56:18 2001
 @@ -311,6 +311,11 @@
  	 */
  	close(0);
  	close(1);
 +	if (open("/dev/null", O_RDONLY) < 0 ||
 +	    open("/dev/null", O_WRONLY) < 0) {
 +		perror("/dev/null");
 +		exit(1);
 +	}
  
  #ifdef _POSIX_SOURCE
  	fcntl(master, F_SETFL, O_NONBLOCK);

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