cmd6.c

早期freebsd实现

/*
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Edward Wang at The University of California, Berkeley.
 *
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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.
 */

#ifndef lint
static char sccsid[] = "@(#)cmd6.c	8.1 (Berkeley) 6/6/93";
#endif /* not lint */

#include "defs.h"
#include "string.h"
#include "char.h"

/*
 * Debugging commands.
 */

c_debug()
{
	register struct ww *w;

	if (!terse)
		wwputs("[m(smap) n(ns) o(os) s(string) v(nvis) w(win)]? ", cmdwin);
	wwcurtowin(cmdwin);
	while (wwpeekc() < 0)
		wwiomux();
	if (!terse)
		wwputc('\n', cmdwin);
	switch (wwgetc()) {
	case 'm':
		wwdumpsmap();
		break;
	case 'n':
		wwdumpns();
		break;
	case 'o':
		wwdumpos();
		break;
	case 's':
		debug_str();
		break;
	case 'v':
		if ((w = getwin()) != 0)
			wwdumpnvis(w);
		break;
	case 'w':
		if ((w = getwin()) != 0)
			wwdumpwin(w);
		break;
	default:
		wwbell();
	}
}

#ifdef STR_DEBUG
debug_str()
{
	register struct ww *w;
	struct string *s;

	if ((w = openiwin(wwnrow - 3, "Allocated Strings")) == 0) {
		error("Can't open string window: %s.", wwerror());
		return;
	}
	for (s = str_head.s_forw; s != &str_head; s = s->s_forw) {
		if (more(w, 0) == 2)
			goto out;
		wwprintf(w, "(0x%x)\t\"%s\"\n", s->s_data, s->s_data);
	}
	waitnl(w);
out:
	closeiwin(w);
}
#else
debug_str()
{
	error("No string debugging.");
}
#endif