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Revision 1.5, Tue Oct 27 23:59:47 2009 UTC (14 years, 7 months ago) by deraadt
Branch: MAIN
CVS Tags: OPENBSD_5_6_BASE, OPENBSD_5_6, OPENBSD_5_5_BASE, OPENBSD_5_5, OPENBSD_5_4_BASE, OPENBSD_5_4, OPENBSD_5_3_BASE, OPENBSD_5_3, OPENBSD_5_2_BASE, OPENBSD_5_2, OPENBSD_5_1_BASE, OPENBSD_5_1, OPENBSD_5_0_BASE, OPENBSD_5_0, OPENBSD_4_9_BASE, OPENBSD_4_9, OPENBSD_4_8_BASE, OPENBSD_4_8, OPENBSD_4_7_BASE, OPENBSD_4_7
Changes since 1.4: +1 -5 lines 

rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable).  these days, people use source.  these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms

/*	$OpenBSD: ex_equal.c,v 1.5 2009/10/27 23:59:47 deraadt Exp $	*/

/*-
 * Copyright (c) 1992, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 * Copyright (c) 1992, 1993, 1994, 1995, 1996
 *	Keith Bostic.  All rights reserved.
 *
 * See the LICENSE file for redistribution information.
 */

#include "config.h"

#include <sys/types.h>
#include <sys/queue.h>

#include <bitstring.h>
#include <limits.h>
#include <stdio.h>

#include "../common/common.h"

/*
 * ex_equal -- :address =
 *
 * PUBLIC: int ex_equal(SCR *, EXCMD *);
 */
int
ex_equal(sp, cmdp)
	SCR *sp;
	EXCMD *cmdp;
{
	recno_t lno;

	NEEDFILE(sp, cmdp);

	/*
	 * Print out the line number matching the specified address,
	 * or the number of the last line in the file if no address
	 * specified.
	 *
	 * !!!
	 * Historically, ":0=" displayed 0, and ":=" or ":1=" in an
	 * empty file displayed 1.  Until somebody complains loudly,
	 * we're going to do it right.  The tables in excmd.c permit
	 * lno to get away with any address from 0 to the end of the
	 * file, which, in an empty file, is 0.
	 */
	if (F_ISSET(cmdp, E_ADDR_DEF)) {
		if (db_last(sp, &lno))
			return (1);
	} else
		lno = cmdp->addr1.lno;

	(void)ex_printf(sp, "%ld\n", lno);
	return (0);
}