From owner-freebsd-isdn  Fri Nov 23  2:43:57 2001
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Date: Fri, 23 Nov 2001 11:44:05 +0100 (CET)
From: Leif Neland <leifn@neland.dk>
To: <freebsd-isdn@FreeBSD.ORG>
Subject: isdnd -P : why initialize hw etc?
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I looked at isdnd/main.c, and I wonder why isdnd -P try to connect to hw,
why does it do more than parse the config-file, print it and exit?

Is it nessecary to run this:

	check_pid();	/* check if we are already running */

	/* open isdn device */

	if((isdnfd = open(I4BDEVICE, O_RDWR)) < 0)
	{
		log(LL_ERR, "main: cannot open %s: %s", I4BDEVICE, strerror(errno));
		exit(1);
	}

	/* check kernel and userland have same version/release numbers */

	if((ioctl(isdnfd, I4B_VR_REQ, &mvr)) < 0)
	{
		log(LL_ERR, "main: ioctl I4B_VR_REQ failed: %s", strerror(errno));
		do_exit(1);
	}

	if(mvr.version != VERSION)
	{
		log(LL_ERR, "main: version mismatch, kernel %d, daemon %d", mvr.version, VERSION);
		do_exit(1);
	}

	if(mvr.release != REL)
	{
		log(LL_ERR, "main: release mismatch, kernel %d, daemon %d", mvr.release, REL);
		do_exit(1);
	}

	if(mvr.step != STEP)
	{
		log(LL_ERR, "main: step mismatch, kernel %d, daemon %d", mvr.step, STEP);
		do_exit(1);
	}

	/* init controller state array */

	init_controller();

	/* read runtime configuration file and configure ourselves */

If -P is set, configure never returns, but isdnd terminates.

	configure(configfile, 0);


Why not put all the above statements in a "if (!do_print)" ?

The obvious answer is "try it", but then isdnd dies with segmentation
fault when rc_config calls yyparse. I can't find this function.

Leif



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