/* $OpenBSD: mbufs.c,v 1.4 1997/12/19 09:03:32 deraadt Exp $ */ /* $NetBSD: mbufs.c,v 1.2 1995/01/20 08:52:02 jtc Exp $ */ /*- * Copyright (c) 1980, 1992, 1993 * The Regents of the University of California. All rights reserved. * * 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 #if 0 static char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93"; #endif static char rcsid[] = "$OpenBSD: mbufs.c,v 1.4 1997/12/19 09:03:32 deraadt Exp $"; #endif /* not lint */ #include <sys/param.h> #include <sys/types.h> #include <sys/mbuf.h> #include <stdlib.h> #include <string.h> #include <nlist.h> #include <paths.h> #include "systat.h" #include "extern.h" static struct mbstat *mb; char *mtnames[] = { "free", "data", "headers", "sockets", "pcbs", "routes", "hosts", "arps", "socknames", "zombies", "sockopts", "frags", "rights", "ifaddrs", }; #define NNAMES (sizeof (mtnames) / sizeof (mtnames[0])) WINDOW * openmbufs() { return (subwin(stdscr, LINES-5-1, 0, 5, 0)); } void closembufs(w) WINDOW *w; { if (w == NULL) return; wclear(w); wrefresh(w); delwin(w); } void labelmbufs() { wmove(wnd, 0, 0); wclrtoeol(wnd); mvwaddstr(wnd, 0, 10, "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60"); } void showmbufs() { register int i, j, max, index; char buf[13]; if (mb == 0) return; for (j = 0; j < wnd->_maxy; j++) { max = 0, index = -1; for (i = 0; i < wnd->_maxy; i++) if (mb->m_mtypes[i] > max) { max = mb->m_mtypes[i]; index = i; } if (max == 0) break; if (j > NNAMES) mvwprintw(wnd, 1+j, 0, "%10d", index); else mvwprintw(wnd, 1+j, 0, "%-10.10s", mtnames[index]); wmove(wnd, 1 + j, 10); if (max > 60) { snprintf(buf, sizeof buf, " %d", max); max = 60; while (max--) waddch(wnd, 'X'); waddstr(wnd, buf); } else { while (max--) waddch(wnd, 'X'); wclrtoeol(wnd); } mb->m_mtypes[index] = 0; } wmove(wnd, 1+j, 0); wclrtobot(wnd); } static struct nlist namelist[] = { #define X_MBSTAT 0 { "_mbstat" }, { "" } }; int initmbufs() { if (namelist[X_MBSTAT].n_type == 0) { if (kvm_nlist(kd, namelist)) { nlisterr(namelist); return(0); } if (namelist[X_MBSTAT].n_type == 0) { error("namelist on %s failed", _PATH_UNIX); return(0); } } if (mb == 0) mb = (struct mbstat *)calloc(1, sizeof (*mb)); return(1); } void fetchmbufs() { if (namelist[X_MBSTAT].n_type == 0) return; NREAD(X_MBSTAT, mb, sizeof (*mb)); }