342e2faa09
and compiler warnings. The data for network statistics are still obtained via the kvm interface if systat was started with the needed privileges, otherwise sysctls are used. The reason for this is that with really many open sockets, the sysctl method is probably slower, but it systat -netstat is probably not really usable in either mode under these conditions. Approved by: rwatson
71 lines
3.1 KiB
C
71 lines
3.1 KiB
C
/*-
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* Copyright (c) 1980, 1989, 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* From: @(#)systat.h 8.1 (Berkeley) 6/6/93
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* $FreeBSD$
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*/
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#include <curses.h>
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struct cmdtab {
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char *c_name; /* command name */
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void (*c_refresh)(void); /* display refresh */
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void (*c_fetch)(void); /* sets up data structures */
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void (*c_label)(void); /* label display */
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int (*c_init)(void); /* initialize namelist, etc. */
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WINDOW *(*c_open)(void); /* open display */
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void (*c_close)(WINDOW *); /* close display */
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int (*c_cmd)(char *, char *); /* display command interpreter */
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void (*c_reset)(void); /* reset ``mode since'' display */
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char c_flags; /* see below */
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};
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/*
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* If we are started with privileges, use a kmem interface for netstat handling,
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* otherwise use sysctl.
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* In case of many open sockets, the sysctl handling might become slow.
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*/
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extern int use_kvm;
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#define CF_INIT 0x1 /* been initialized */
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#define CF_LOADAV 0x2 /* display w/ load average */
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#define TCP 0x1
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#define UDP 0x2
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#define GETSYSCTL(name, var) getsysctl(name, &(var), sizeof(var))
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#define KREAD(addr, buf, len) kvm_ckread((addr), (buf), (len))
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#define NVAL(indx) namelist[(indx)].n_value
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#define NPTR(indx) (void *)NVAL((indx))
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#define NREAD(indx, buf, len) kvm_ckread(NPTR((indx)), (buf), (len))
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#define LONG (sizeof (long))
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