xref: /freebsd/usr.bin/systat/ifcmds.c (revision 3cbb4cc200f8a0ad7ed08233425ea54524a21f1c)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 2003, Trent Nelson, <trent@arpa.com>.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  * $FreeBSD$
31  */
32 
33 #include <sys/types.h>
34 
35 #include "systat.h"
36 #include "extern.h"
37 #include "convtbl.h"
38 
39 #include <stdlib.h>
40 #include <string.h>
41 
42 int curscale = SC_AUTO;
43 char *matchline = NULL;
44 int showpps = 0;
45 int needsort = 0;
46 
47 int
48 ifcmd(const char *cmd, const char *args)
49 {
50 	int scale;
51 
52 	if (prefix(cmd, "scale")) {
53 		if ((scale = get_scale(args)) != -1)
54 			curscale = scale;
55 		else {
56 			move(CMDLINE, 0);
57 			clrtoeol();
58 			addstr("what scale? ");
59 			addstr(get_helplist());
60 		}
61 	} else if (prefix(cmd, "match")) {
62 		if (args != NULL && *args != '\0' && memcmp(args, "*", 2) != 0) {
63 			/* We got a valid match line */
64 			if (matchline != NULL)
65 				free(matchline);
66 			needsort = 1;
67 			matchline = strdup(args);
68 		} else {
69 			/* Empty or * pattern, turn filtering off */
70 			if (matchline != NULL)
71 				free(matchline);
72 			needsort = 1;
73 			matchline = NULL;
74 		}
75 	} else if (prefix(cmd, "pps"))
76 		showpps = !showpps;
77 	else
78 		return (0);
79 
80 	return (1);
81 }
82