Annotation of src/usr.bin/systat/mbufs.c, Revision 1.13
1.13 ! millert 1: /* $OpenBSD: mbufs.c,v 1.12 2002/06/19 08:45:52 deraadt Exp $ */
1.1 deraadt 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.
1.13 ! millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 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
1.13 ! millert 37: static char rcsid[] = "$OpenBSD: mbufs.c,v 1.12 2002/06/19 08:45:52 deraadt Exp $";
1.1 deraadt 38: #endif /* not lint */
39:
40: #include <sys/param.h>
41: #include <sys/types.h>
42: #include <sys/mbuf.h>
1.10 angelos 43: #include <sys/sysctl.h>
1.1 deraadt 44:
45: #include <stdlib.h>
46: #include <string.h>
47: #include <nlist.h>
1.9 deraadt 48: #include <err.h>
1.1 deraadt 49: #include <paths.h>
50: #include "systat.h"
51: #include "extern.h"
52:
53: static struct mbstat *mb;
54:
55: char *mtnames[] = {
56: "free",
57: "data",
58: "headers",
59: "sockets",
60: "pcbs",
61: "routes",
62: "hosts",
63: "arps",
64: "socknames",
65: "zombies",
66: "sockopts",
67: "frags",
68: "rights",
69: "ifaddrs",
70: };
71:
72: #define NNAMES (sizeof (mtnames) / sizeof (mtnames[0]))
73:
74: WINDOW *
1.11 deraadt 75: openmbufs(void)
1.1 deraadt 76: {
77: return (subwin(stdscr, LINES-5-1, 0, 5, 0));
78: }
79:
80: void
1.11 deraadt 81: closembufs(WINDOW *w)
1.1 deraadt 82: {
83: if (w == NULL)
84: return;
85: wclear(w);
86: wrefresh(w);
87: delwin(w);
88: }
89:
90: void
1.11 deraadt 91: labelmbufs(void)
1.1 deraadt 92: {
93: wmove(wnd, 0, 0); wclrtoeol(wnd);
94: mvwaddstr(wnd, 0, 10,
95: "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60");
96: }
97:
98: void
1.11 deraadt 99: showmbufs(void)
1.1 deraadt 100: {
1.6 mpech 101: int i, j, max, index;
1.4 deraadt 102: char buf[13];
1.1 deraadt 103:
104: if (mb == 0)
105: return;
1.2 mickey 106: for (j = 0; j < wnd->_maxy; j++) {
1.9 deraadt 107: max = 0, index = -1;
1.2 mickey 108: for (i = 0; i < wnd->_maxy; i++)
1.1 deraadt 109: if (mb->m_mtypes[i] > max) {
110: max = mb->m_mtypes[i];
111: index = i;
112: }
113: if (max == 0)
114: break;
115: if (j > NNAMES)
116: mvwprintw(wnd, 1+j, 0, "%10d", index);
117: else
118: mvwprintw(wnd, 1+j, 0, "%-10.10s", mtnames[index]);
119: wmove(wnd, 1 + j, 10);
120: if (max > 60) {
1.4 deraadt 121: snprintf(buf, sizeof buf, " %d", max);
1.1 deraadt 122: max = 60;
123: while (max--)
124: waddch(wnd, 'X');
125: waddstr(wnd, buf);
126: } else {
127: while (max--)
128: waddch(wnd, 'X');
129: wclrtoeol(wnd);
130: }
131: mb->m_mtypes[index] = 0;
132: }
133: wmove(wnd, 1+j, 0); wclrtobot(wnd);
134: }
135:
136: static struct nlist namelist[] = {
137: #define X_MBSTAT 0
1.12 deraadt 138: { "_mbstat" }, /* sysctl */
1.1 deraadt 139: { "" }
140: };
141:
142: int
1.11 deraadt 143: initmbufs(void)
1.1 deraadt 144: {
1.5 ericj 145: int ret;
146:
1.10 angelos 147: if (kd != NULL) {
1.1 deraadt 148: if (namelist[X_MBSTAT].n_type == 0) {
1.10 angelos 149: if ((ret = kvm_nlist(kd, namelist)) == -1)
150: errx(1, "%s", kvm_geterr(kd));
151: else if (ret)
152: nlisterr(namelist);
153: if (namelist[X_MBSTAT].n_type == 0) {
154: error("namelist on %s failed", _PATH_UNIX);
155: return(0);
156: }
1.1 deraadt 157: }
158: }
159: if (mb == 0)
160: mb = (struct mbstat *)calloc(1, sizeof (*mb));
161: return(1);
162: }
163:
164: void
1.11 deraadt 165: fetchmbufs(void)
1.1 deraadt 166: {
1.10 angelos 167: int mib[2];
168: size_t size = sizeof (*mb);
169:
170: if (kd == NULL) {
171: mib[0] = CTL_KERN;
172: mib[1] = KERN_MBSTAT;
173: if (sysctl(mib, 2, mb, &size, NULL, 0) < 0)
174: err(1, "sysctl(KERN_MBSTAT) failed");
175: } else {
176: if (namelist[X_MBSTAT].n_type == 0)
177: return;
178: NREAD(X_MBSTAT, mb, size);
179: }
1.1 deraadt 180: }
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