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Change variable get/set macros to have better names and drop boolean/character
ones.

/*	$OpenBSD: hunt.c,v 1.17 2010/07/01 21:28:01 nicm Exp $	*/
/*	$NetBSD: hunt.c,v 1.6 1997/04/20 00:02:10 mellon Exp $	*/

/*
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <util.h>

#include "tip.h"

static	jmp_buf deadline;
static	int deadfl;

static void	dead(int);

/*ARGSUSED*/
static void
dead(int signo)
{
	deadfl = 1;
	longjmp(deadline, 1);
}

long
hunt(char *name)
{
	char *cp;
	sig_t f;

	f = signal(SIGALRM, dead);
	while ((cp = getremote(name))) {
		deadfl = 0;
		uucplock = strrchr(cp, '/');
		if (uucplock == NULL)
			uucplock = cp;
		else
			uucplock++;
		if (uu_lock(uucplock) != UU_LOCK_OK)
			continue;

		if (setjmp(deadline) == 0) {
			alarm(10);
			FD = open(cp, O_RDWR | (vgetnum(DC) ? O_NONBLOCK : 0));
		}
		alarm(0);
		if (FD < 0) {
			perror(cp);
			deadfl = 1;
		}
		if (!deadfl) {
			struct termios cntrl;

			tcgetattr(FD, &cntrl);
			if (!vgetnum(DC))
				cntrl.c_cflag |= HUPCL;
			tcsetattr(FD, TCSAFLUSH, &cntrl);
			ioctl(FD, TIOCEXCL, 0);
			signal(SIGALRM, SIG_DFL);
			return ((long)cp);
		}

		(void)uu_unlock(uucplock);
	}
	signal(SIGALRM, f);
	return (deadfl ? -1 : (long)cp);
}