1 /* $OpenBSD: mbufs.c,v 1.15 2004/07/09 16:33:15 deraadt Exp $ */
2 /* $NetBSD: mbufs.c,v 1.2 1995/01/20 08:52:02 jtc Exp $ */
3
4 /*-
5 * Copyright (c) 1980, 1992, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93";
36 #endif
37 static char rcsid[] = "$OpenBSD: mbufs.c,v 1.15 2004/07/09 16:33:15 deraadt Exp $";
38 #endif /* not lint */
39
40 #include <sys/param.h>
41 #include <sys/types.h>
42 #include <sys/mbuf.h>
43 #include <sys/sysctl.h>
44
45 #include <stdlib.h>
46 #include <string.h>
47 #include <err.h>
48 #include <paths.h>
49 #include "systat.h"
50 #include "extern.h"
51
52 static struct mbstat mb;
53
54 char *mtnames[] = {
55 "free",
56 "data",
57 "headers",
58 "sockets",
59 "pcbs",
60 "routes",
61 "hosts",
62 "arps",
63 "socknames",
64 "zombies",
65 "sockopts",
66 "frags",
67 "rights",
68 "ifaddrs",
69 };
70
71 #define NNAMES (sizeof (mtnames) / sizeof (mtnames[0]))
72
73 WINDOW *
openmbufs(void)74 openmbufs(void)
75 {
76 return (subwin(stdscr, LINES-5-1, 0, 5, 0));
77 }
78
79 void
closembufs(WINDOW * w)80 closembufs(WINDOW *w)
81 {
82 if (w == NULL)
83 return;
84 wclear(w);
85 wrefresh(w);
86 delwin(w);
87 }
88
89 void
labelmbufs(void)90 labelmbufs(void)
91 {
92 wmove(wnd, 0, 0); wclrtoeol(wnd);
93 mvwaddstr(wnd, 0, 10,
94 "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60");
95 }
96
97 void
showmbufs(void)98 showmbufs(void)
99 {
100 int i, j, max, index;
101 char buf[13];
102
103 for (j = 0; j < wnd->_maxy; j++) {
104 max = 0, index = -1;
105 for (i = 0; i < wnd->_maxy; i++)
106 if (mb.m_mtypes[i] > max) {
107 max = mb.m_mtypes[i];
108 index = i;
109 }
110 if (max == 0)
111 break;
112 if (j > NNAMES)
113 mvwprintw(wnd, 1+j, 0, "%10d", index);
114 else
115 mvwprintw(wnd, 1+j, 0, "%-10.10s", mtnames[index]);
116 wmove(wnd, 1 + j, 10);
117 if (max > 60) {
118 snprintf(buf, sizeof buf, " %d", max);
119 max = 60;
120 while (max--)
121 waddch(wnd, 'X');
122 waddstr(wnd, buf);
123 } else {
124 while (max--)
125 waddch(wnd, 'X');
126 wclrtoeol(wnd);
127 }
128 mb.m_mtypes[index] = 0;
129 }
130 wmove(wnd, 1+j, 0); wclrtobot(wnd);
131 }
132
133
134 void
fetchmbufs(void)135 fetchmbufs(void)
136 {
137 int mib[2];
138 size_t size = sizeof (mb);
139
140 mib[0] = CTL_KERN;
141 mib[1] = KERN_MBSTAT;
142 if (sysctl(mib, 2, &mb, &size, NULL, 0) < 0)
143 err(1, "sysctl(KERN_MBSTAT) failed");
144 }
145
146 int
initmbufs(void)147 initmbufs(void)
148 {
149 return (1);
150 }
151