ifcmds.c revision 164669 
1/*
2 * Copyright (c) 2003, Trent Nelson, <trent@arpa.com>.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 *    derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/usr.bin/systat/ifcmds.c 164669 2006-11-27 15:11:30Z yar $
29 */
30
31#include <string.h>
32
33#include "systat.h"
34#include "extern.h"
35#include "convtbl.h"
36
37int		curscale = SC_AUTO;
38
39static int	selectscale(const char *);
40
41int
42ifcmd(const char *cmd, const char *args)
43{
44
45	if (prefix(cmd, "scale")) {
46		if (*args != '\0' && selectscale(args) != -1)
47			;
48		else {
49			move(CMDLINE, 0);
50			clrtoeol();
51			addstr("what scale? kbit, kbyte, mbit, mbyte, " \
52			       "gbit, gbyte, auto");
53		}
54	}
55	return (1);
56}
57
58static int
59selectscale(const char *args)
60{
61	int	retval;
62
63#define streq(a,b)	(strcmp(a,b) == 0)
64	if (streq(args, "default") || streq(args, "auto"))
65		curscale = SC_AUTO;
66	else if (streq(args, "kbit"))
67		curscale = SC_KILOBIT;
68	else if (streq(args, "kbyte"))
69		curscale = SC_KILOBYTE;
70	else if (streq(args, "mbit"))
71		curscale = SC_MEGABIT;
72	else if (streq(args, "mbyte"))
73		curscale = SC_MEGABYTE;
74	else if (streq(args, "gbit"))
75		curscale = SC_GIGABIT;
76	else if (streq(args, "gbyte"))
77		curscale = SC_GIGABYTE;
78	else
79		retval = -1;
80
81	return (retval);
82}
83