[apple/network_cmds.git] / netstat.tproj / main.c

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
 * Reserved.  This file contains Original Code and/or Modifications of
 * Original Code as defined in and that are subject to the Apple Public
 * Source License Version 1.0 (the 'License').  You may not use this file
 * except in compliance with the License.  Please obtain a copy of the
 * License at http://www.apple.com/publicsource and read it before using
 * this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License."
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 1983, 1988, 1993
 *	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
char const copyright[] =
"@(#) Copyright (c) 1983, 1988, 1993\n\
	Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
#if 0
static char sccsid[] = "@(#)main.c	8.4 (Berkeley) 3/1/94";
#endif
static const char rcsid[] =
	"$Id: main.c,v 1.8 2004/10/14 22:24:09 lindak Exp $";
#endif /* not lint */

#include <sys/param.h>
#include <sys/file.h>
#include <sys/socket.h>

#include <netinet/in.h>
#include <net/pfkeyv2.h>

#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <netdb.h>
#include <nlist.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "netstat.h"
#include <sys/types.h>
#include <sys/sysctl.h>

#ifdef __APPLE__
#include <TargetConditionals.h>
#endif

/*
 * ----------------------------------------------------------------------------
 * "THE BEER-WARE LICENSE" (Revision 42):
 * <phk@FreeBSD.org> wrote this file.  As long as you retain this notice you
 * can do whatever you want with this stuff. If we meet some day, and you think
 * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
 * ----------------------------------------------------------------------------
 *
 * $Id: main.c,v 1.8 2004/10/14 22:24:09 lindak Exp $
 *
 */

static struct nlist nl[] = {
#define	N_IFNET		0
	{ "_ifnet" },
#define	N_IMP		1
	{ "_imp_softc" },
#define	N_RTSTAT	2
	{ "_rtstat" },
#define	N_UNIXSW	3
	{ "_localsw" },
#define N_IDP		4
	{ "_nspcb"},
#define N_IDPSTAT	5
	{ "_idpstat"},
#define N_SPPSTAT	6
	{ "_spp_istat"},
#define N_NSERR		7
	{ "_ns_errstat"},
#define	N_CLNPSTAT	8
	{ "_clnp_stat"},
#define	IN_NOTUSED	9
	{ "_tp_inpcb" },
#define	ISO_TP		10
	{ "_tp_refinfo" },
#define	N_TPSTAT	11
	{ "_tp_stat" },
#define	N_ESISSTAT	12
	{ "_esis_stat"},
#define N_NIMP		13
	{ "_nimp"},
#define N_RTREE		14
	{ "_rt_tables"},
#define N_CLTP		15
	{ "_cltb"},
#define N_CLTPSTAT	16
	{ "_cltpstat"},
#define	N_NFILE		17
	{ "_nfile" },
#define	N_FILE		18
	{ "_file" },
#define N_IPX		22
	{ "_ipxpcb"},
#define N_IPXSTAT	23
	{ "_ipxstat"},
#define N_SPXSTAT	24
	{ "_spx_istat"},
#define N_DDPSTAT	25
	{ "_ddpstat"},
#define N_DDPCB		26
	{ "_ddpcb"},
#define N_NGSOCKS	27
	{ "_ngsocklist"},
#define N_IP6STAT	28
	{ "_ip6stat" },
#define N_ICMP6STAT	29
	{ "_icmp6stat" },
#define N_IPSECSTAT	30
	{ "_ipsecstat" },
#define N_IPSEC6STAT	31
	{ "_ipsec6stat" },
#define N_PIM6STAT	32
	{ "_pim6stat" },
#define N_MRT6PROTO	33
	{ "_ip6_mrtproto" },
#define N_MRT6STAT	34
	{ "_mrt6stat" },
#define N_MF6CTABLE	35
	{ "_mf6ctable" },
#define N_MIF6TABLE	36
	{ "_mif6table" },
#define N_PFKEYSTAT	37
	{ "_pfkeystat" },
#define N_MBSTAT	38
	{ "_mbstat" },
#define N_MBTYPES	39
	{ "_mbtypes" },
#define N_NMBCLUSTERS	40
	{ "_nmbclusters" },
#define N_NMBUFS	41
	{ "_nmbufs" },
#define	N_RTTRASH	42
	{ "_rttrash" },
	{ "" },
};


struct protox {
	u_char	pr_index;		/* index into nlist of cb head */
	u_char	pr_sindex;		/* index into nlist of stat block */
	u_char	pr_wanted;		/* 1 if wanted, 0 otherwise */
	void	(*pr_cblocks)(u_long, char *, int);
					/* control blocks printing routine */
	void	(*pr_stats)(u_long, char *, int);
					/* statistics printing routine */
	void	(*pr_istats)(char *);	/* per/if statistics printing routine */
	char	*pr_name;		/* well-known name */
	int	pr_usesysctl;		/* true if we use sysctl, not kvm */
} protox[] = {
	{ -1,		-1,		1,	protopr,
	  tcp_stats,	NULL,		"tcp",	IPPROTO_TCP },
	{ -1,		-1,		1,	protopr,
	  udp_stats,	NULL,		"udp",	IPPROTO_UDP },
	{ -1,		-1,		1,	protopr,
	  NULL,		NULL,		"divert",IPPROTO_DIVERT },
	{ -1,		-1,		1,	protopr,
	  ip_stats,	NULL,		"ip",	IPPROTO_RAW },
	{ -1,		-1,		1,	protopr,
	  icmp_stats,	NULL,		"icmp",	IPPROTO_ICMP },
	{ -1,		-1,		1,	protopr,
	  igmp_stats,	NULL,		"igmp",	IPPROTO_IGMP },
#ifdef IPSEC
	{ -1,		-1,	1,	0,
	  ipsec_stats,	NULL,		"ipsec",	IPPROTO_ESP},
#endif
#if 0
	{ -1,		-1,		1,	0,
	  bdg_stats,	NULL,		"bdg",	1 /* bridging... */ },
#endif
	{ -1,		-1,		0,	0,
	  0,		NULL,		0 }
};

#ifdef INET6
struct protox ip6protox[] = {
	{ -1,		-1,		1,	protopr,
	  tcp_stats,	NULL,		"tcp",	IPPROTO_TCP },
	{ -1,		-1,		1,	protopr,
	  udp_stats,	NULL,		"udp",	IPPROTO_UDP },
	{ -1,		N_IP6STAT,	1,	protopr,
	  ip6_stats,	ip6_ifstats,	"ip6",	IPPROTO_RAW },
	{ -1,		N_ICMP6STAT,	1,	protopr,
	  icmp6_stats,	icmp6_ifstats,	"icmp6",IPPROTO_ICMPV6 },
#ifdef IPSEC
	{ -1,		N_IPSEC6STAT,	1,	0,
	  ipsec_stats,	NULL,		"ipsec6",IPPROTO_ESP },
#endif
#ifdef notyet
	{ -1,		N_PIM6STAT,	1,	0,
	  pim6_stats,	NULL,		"pim6",	0 },
#endif
	{ -1,		-1,		1,	0,
	  rip6_stats,	NULL,		"rip6",	IPPROTO_RAW },
#if 0
	{ -1,		-1,		1,	0,
	  bdg_stats,	NULL,		"bdg",	1 /* bridging... */ },
#endif
	{ -1,		-1,		0,	0,
	  0,		NULL,		0,	0 }
};
#endif /*INET6*/

#ifdef IPSEC
struct protox pfkeyprotox[] = {
	{ -1,		N_PFKEYSTAT,	1,	0,
	  pfkey_stats,	NULL,		"pfkey", PF_KEY_V2 },
	{ -1,		-1,		0,	0,
	  0,		NULL,		0,	0 }
};
#endif
#ifndef __APPLE__
struct protox atalkprotox[] = {
	{ N_DDPCB,	N_DDPSTAT,	1,	atalkprotopr,
	  ddp_stats,	NULL,		"ddp" },
	{ -1,		-1,		0,	0,
	  0,		NULL,		0 }
};

struct protox netgraphprotox[] = {
	{ N_NGSOCKS,	-1,		1,	netgraphprotopr,
	  NULL,		NULL,		"ctrl" },
	{ N_NGSOCKS,	-1,		1,	netgraphprotopr,
	  NULL,		NULL,		"data" },
	{ -1,		NULL,		0,	0,
	  0,		NULL,		0 }
};

struct protox ipxprotox[] = {
	{ N_IPX,	N_IPXSTAT,	1,	ipxprotopr,
	  ipx_stats,	NULL,		"ipx",	0 },
	{ N_IPX,	N_SPXSTAT,	1,	ipxprotopr,
	  spx_stats,	NULL,		"spx",	0 },
	{ -1,		-1,		0,	0,
	  0,		NULL,		0,	0 }
};
#endif
#ifdef NS
struct protox nsprotox[] = {
	{ N_IDP,	N_IDPSTAT,	1,	nsprotopr,
	  idp_stats,	NULL,		"idp" },
	{ N_IDP,	N_SPPSTAT,	1,	nsprotopr,
	  spp_stats,	NULL,		"spp" },
	{ -1,		N_NSERR,	1,	0,
	  nserr_stats,	NULL,		"ns_err" },
	{ -1,		-1,		0,	0,
	  0,		NULL,		0 }
};
#endif

#ifdef ISO
struct protox isoprotox[] = {
	{ ISO_TP,	N_TPSTAT,	1,	iso_protopr,
	  tp_stats,	NULL,		"tp" },
	{ N_CLTP,	N_CLTPSTAT,	1,	iso_protopr,
	  cltp_stats,	NULL,		"cltp" },
	{ -1,		N_CLNPSTAT,	1,	 0,
	  clnp_stats,	NULL,		"clnp"},
	{ -1,		N_ESISSTAT,	1,	 0,
	  esis_stats,	NULL,		"esis"},
	{ -1,		-1,		0,	0,
	  0,		NULL,		0 }
};
#endif

struct protox *protoprotox[] = {
					 protox,
#ifdef INET6
					 ip6protox,
#endif
#ifdef IPSEC
					 pfkeyprotox,
#endif
#ifndef __APPLE__
					 ipxprotox, atalkprotox,
#endif
#ifdef NS
					 nsprotox, 
#endif
#ifdef ISO
					 isoprotox, 
#endif
					 NULL };

static void printproto (struct protox *, char *);
static void usage (void);
static struct protox *name2protox (char *);
static struct protox *knownname (char *);
#ifdef SRVCACHE
extern void _serv_cache_close();
#endif

int	Aflag;		/* show addresses of protocol control block */
int	aflag;		/* show all sockets (including servers) */
int	bflag;		/* show i/f total bytes in/out */
int	dflag;		/* show i/f dropped packets */
#if defined(__APPLE__) && !TARGET_OS_EMBEDDED
int	gflag;		/* show group (multicast) routing or stats */
#endif
int	iflag;		/* show interfaces */
int	lflag;		/* show routing table with use and ref */
int	Lflag;		/* show size of listen queues */
int	mflag;		/* show memory stats */
int	nflag;		/* show addresses numerically */
static int pflag;	/* show given protocol */
int	rflag;		/* show routing tables (or routing stats) */
int	sflag;		/* show protocol statistics */
int	tflag;		/* show i/f watchdog timers */
int	Wflag;		/* wide display */

int	interval;	/* repeat interval for i/f stats */

char	*interface;	/* desired i/f for stats, or NULL for all i/fs */
int	unit;		/* unit number for above */

int	af;		/* address family */

int
main(argc, argv)
	int argc;
	char *argv[];
{
	register struct protox *tp = NULL;  /* for printing cblocks & stats */
	int ch;

	af = AF_UNSPEC;

	while ((ch = getopt(argc, argv, "Aabdf:gI:iLlmnp:rRstuWw:")) != -1)
		switch(ch) {
		case 'A':
			Aflag = 1;
			break;
		case 'a':
			aflag = 1;
			break;
		case 'b':
			bflag = 1;
			break;
		case 'd':
			dflag = 1;
			break;
		case 'f':
#ifdef NS
			if (strcmp(optarg, "ns") == 0)
				af = AF_NS;
			else
#endif
			if (strcmp(optarg, "ipx") == 0)
				af = AF_IPX;
			else if (strcmp(optarg, "inet") == 0)
				af = AF_INET;
#ifdef INET6
			else if (strcmp(optarg, "inet6") == 0)
				af = AF_INET6;
#endif /*INET6*/
#ifdef INET6
			else if (strcmp(optarg, "pfkey") == 0)
				af = PF_KEY;
#endif /*INET6*/
			else if (strcmp(optarg, "unix") == 0)
				af = AF_UNIX;
#ifndef __APPLE__
			else if (strcmp(optarg, "atalk") == 0)
				af = AF_APPLETALK;
			else if (strcmp(optarg, "ng") == 0
			    || strcmp(optarg, "netgraph") == 0)
				af = AF_NETGRAPH;
#endif
#ifdef ISO
			else if (strcmp(optarg, "iso") == 0)
				af = AF_ISO;
#endif
			else {
				errx(1, "%s: unknown address family", optarg);
			}
			break;
#if defined(__APPLE__) && !TARGET_OS_EMBEDDED
		case 'g':
			gflag = 1;
			break;
#endif
		case 'I': {
			char *cp;

			iflag = 1;
			for (cp = interface = optarg; isalpha(*cp); cp++)
				continue;
			unit = atoi(cp);
			break;
		}
		case 'i':
			iflag = 1;
			break;
		case 'l':
			lflag = 1;
			break;
		case 'L':
			Lflag = 1;
			break;
		case 'm':
			mflag++;
			break;
		case 'n':
			nflag = 1;
			break;
		case 'p':
			if ((tp = name2protox(optarg)) == NULL) {
				errx(1, 
				     "%s: unknown or uninstrumented protocol",
				     optarg);
			}
			pflag = 1;
			break;
		case 'r':
			rflag = 1;
			break;
		case 's':
			++sflag;
			break;
		case 't':
			tflag = 1;
			break;
		case 'u':
			af = AF_UNIX;
			break;
		case 'W':
			Wflag = 1;
			break;
		case 'w':
			interval = atoi(optarg);
			iflag = 1;
			break;
		case '?':
		default:
			usage();
		}
	argv += optind;
	argc -= optind;

#define	BACKWARD_COMPATIBILITY
#ifdef	BACKWARD_COMPATIBILITY
	if (*argv) {
		if (isdigit(**argv)) {
			interval = atoi(*argv);
			if (interval <= 0)
				usage();
			++argv;
			iflag = 1;
		}
	}
#endif

	if (mflag) {
		mbpr();
		exit(0);
	}
#if 0
	/*
	 * Keep file descriptors open to avoid overhead
	 * of open/close on each call to get* routines.
	 */
	sethostent(1);
	setnetent(1);
#else
	/*
	 * This does not make sense any more with DNS being default over
	 * the files.  Doing a setXXXXent(1) causes a tcp connection to be
	 * used for the queries, which is slower.
	 */
#endif
	if (iflag && !sflag) {
		intpr(NULL);
		exit(0);
	}
	if (rflag) {
		if (sflag)
			rt_stats();
		else
			routepr(nl[N_RTREE].n_value);
		exit(0);
	}
#if defined(__APPLE__) && !TARGET_OS_EMBEDDED
	if (gflag) {
		if (sflag) {
			if (af == AF_INET || af == AF_UNSPEC)
				mrt_stats();
#ifdef INET6
			if (af == AF_INET6 || af == AF_UNSPEC)
				mrt6_stats();
#endif
		} else {
			if (af == AF_INET || af == AF_UNSPEC)
				mroutepr();
#ifdef INET6
			if (af == AF_INET6 || af == AF_UNSPEC)
				mroute6pr();
#endif
		}
		ifmalist_dump();
		exit(0);
	}
#endif

	if (tp) {
		printproto(tp, tp->pr_name);
		exit(0);
	}
	if (af == AF_INET || af == AF_UNSPEC)
		for (tp = protox; tp->pr_name; tp++)
			printproto(tp, tp->pr_name);
#ifdef INET6
	if (af == AF_INET6 || af == AF_UNSPEC)
		for (tp = ip6protox; tp->pr_name; tp++)
			printproto(tp, tp->pr_name);
#endif /*INET6*/
#ifdef IPSEC
	if (af == PF_KEY || af == AF_UNSPEC)
		for (tp = pfkeyprotox; tp->pr_name; tp++)
			printproto(tp, tp->pr_name);
#endif /*IPSEC*/
#ifndef __APPLE__
	if (af == AF_IPX || af == AF_UNSPEC) {
		for (tp = ipxprotox; tp->pr_name; tp++)
			printproto(tp, tp->pr_name);
	}
	if (af == AF_APPLETALK || af == AF_UNSPEC)
		for (tp = atalkprotox; tp->pr_name; tp++)
			printproto(tp, tp->pr_name);
	if (af == AF_NETGRAPH || af == AF_UNSPEC)
		for (tp = netgraphprotox; tp->pr_name; tp++)
			printproto(tp, tp->pr_name);
#endif
#ifdef NS
	if (af == AF_NS || af == AF_UNSPEC)
		for (tp = nsprotox; tp->pr_name; tp++)
			printproto(tp, tp->pr_name);
#endif
#ifdef ISO
	if (af == AF_ISO || af == AF_UNSPEC)
		for (tp = isoprotox; tp->pr_name; tp++)
			printproto(tp, tp->pr_name);
#endif
	if ((af == AF_UNIX || af == AF_UNSPEC) && !Lflag && !sflag)
		unixpr();
#ifdef SRVCACHE
	_serv_cache_close();
#endif
	exit(0);
}

/*
 * Print out protocol statistics or control blocks (per sflag).
 * If the interface was not specifically requested, and the symbol
 * is not in the namelist, ignore this one.
 */
static void
printproto(tp, name)
	register struct protox *tp;
	char *name;
{
	void (*pr)(u_long, char *, int);
	u_long off;

	if (sflag) {
		if (iflag && !pflag) {
			if (tp->pr_istats)
				intpr(tp->pr_istats);
			else
				printf("%s: no per-interface stats routine\n",
				    tp->pr_name);
			return;
		}
		else {
			pr = tp->pr_stats;
			if (!pr) {
				if (pflag)
					printf("%s: no stats routine\n",
					    tp->pr_name);
				return;
			}
			off = tp->pr_usesysctl ? tp->pr_usesysctl 
				: nl[tp->pr_sindex].n_value;
		}
	} else {
		pr = tp->pr_cblocks;
		if (!pr) {
			if (pflag)
				printf("%s: no PCB routine\n", tp->pr_name);
			return;
		}
		off = tp->pr_usesysctl ? tp->pr_usesysctl
			: nl[tp->pr_index].n_value;
	}
	if (pr != NULL && (off || af != AF_UNSPEC)) {
		if (sflag && iflag && pflag)
			intervalpr(pr, off, name, af);
		else
			(*pr)(off, name, af);
	} else {
		printf("### no stats for %s\n", name);
	}
}

char *
plural(int n)
{
	return (n != 1 ? "s" : "");
}

char *
plurales(int n)
{
	return (n != 1 ? "es" : "");
}

/*
 * Find the protox for the given "well-known" name.
 */
static struct protox *
knownname(char *name)
{
	struct protox **tpp, *tp;

	for (tpp = protoprotox; *tpp; tpp++)
		for (tp = *tpp; tp->pr_name; tp++)
			if (strcmp(tp->pr_name, name) == 0)
				return (tp);
	return (NULL);
}

/*
 * Find the protox corresponding to name.
 */
static struct protox *
name2protox(char *name)
{
	struct protox *tp;
	char **alias;			/* alias from p->aliases */
	struct protoent *p;

	/*
	 * Try to find the name in the list of "well-known" names. If that
	 * fails, check if name is an alias for an Internet protocol.
	 */
	if ((tp = knownname(name)) != NULL)
		return (tp);

	setprotoent(1);			/* make protocol lookup cheaper */
	while ((p = getprotoent()) != NULL) {
		/* assert: name not same as p->name */
		for (alias = p->p_aliases; *alias; alias++)
			if (strcmp(name, *alias) == 0) {
				endprotoent();
				return (knownname(p->p_name));
			}
	}
	endprotoent();
	return (NULL);
}

#define	NETSTAT_USAGE "\
Usage:	netstat [-AaLlnW] [-f address_family | -p protocol]\n\
	netstat [-gilns] [-f address_family]\n\
	netstat -i | -I interface [-w wait] [-abdgt]\n\
	netstat -s [-s] [-f address_family | -p protocol] [-w wait]\n\
	netstat -i | -I interface -s [-f address_family | -p protocol]\n\
	netstat -m [-m]\n\
	netstat -r [-Aaln] [-f address_family]\n\
	netstat -rs [-s]\n\
"

static void
usage(void)
{
	(void) fprintf(stderr, "%s\n", NETSTAT_USAGE);
	exit(1);
}
Commit	Line	Data
b7080c8e A	1	/*
	2	* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
a2c93a76 A	6	* "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
	7	* Reserved. This file contains Original Code and/or Modifications of
	8	* Original Code as defined in and that are subject to the Apple Public
	9	* Source License Version 1.0 (the 'License'). You may not use this file
	10	* except in compliance with the License. Please obtain a copy of the
	11	* License at http://www.apple.com/publicsource and read it before using
	12	* this file.
b7080c8e A	13	*
	14	* The Original Code and all software distributed under the License are
	15	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	16	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	17	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
a2c93a76 A	18	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	19	* License for the specific language governing rights and limitations
	20	* under the License."
b7080c8e A	21	*
	22	* @APPLE_LICENSE_HEADER_END@
	23	*/
	24	/*
	25	* Copyright (c) 1983, 1988, 1993
	26	* Regents of the University of California. All rights reserved.
	27	*
	28	* Redistribution and use in source and binary forms, with or without
	29	* modification, are permitted provided that the following conditions
	30	* are met:
	31	* 1. Redistributions of source code must retain the above copyright
	32	* notice, this list of conditions and the following disclaimer.
	33	* 2. Redistributions in binary form must reproduce the above copyright
	34	* notice, this list of conditions and the following disclaimer in the
	35	* documentation and/or other materials provided with the distribution.
	36	* 3. All advertising materials mentioning features or use of this software
	37	* must display the following acknowledgement:
	38	* This product includes software developed by the University of
	39	* California, Berkeley and its contributors.
	40	* 4. Neither the name of the University nor the names of its contributors
	41	* may be used to endorse or promote products derived from this software
	42	* without specific prior written permission.
	43	*
	44	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	45	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	46	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	47	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	48	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	49	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	50	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	51	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	52	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	53	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	54	* SUCH DAMAGE.
	55	*/
	56
	57	#ifndef lint
	58	char const copyright[] =
	59	"@(#) Copyright (c) 1983, 1988, 1993\n\
	60	Regents of the University of California. All rights reserved.\n";
	61	#endif /* not lint */
	62
	63	#ifndef lint
	64	#if 0
	65	static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 3/1/94";
	66	#endif
	67	static const char rcsid[] =
2b484d24	68	"$Id: main.c,v 1.8 2004/10/14 22:24:09 lindak Exp $";
b7080c8e A	69	#endif /* not lint */
	70
	71	#include <sys/param.h>
	72	#include <sys/file.h>
b7080c8e A	73	#include <sys/socket.h>
	74
	75	#include <netinet/in.h>
2b484d24	76	#include <net/pfkeyv2.h>
b7080c8e A	77
	78	#include <ctype.h>
	79	#include <err.h>
	80	#include <errno.h>
b7080c8e A	81	#include <limits.h>
	82	#include <netdb.h>
	83	#include <nlist.h>
	84	#include <paths.h>
	85	#include <stdio.h>
	86	#include <stdlib.h>
	87	#include <string.h>
	88	#include <unistd.h>
	89	#include "netstat.h"
	90	#include <sys/types.h>
	91	#include <sys/sysctl.h>
	92
b8dff150 A	93	#ifdef __APPLE__
	94	#include <TargetConditionals.h>
	95	#endif
b7080c8e A	96
	97	/*
	98	* ----------------------------------------------------------------------------
	99	* "THE BEER-WARE LICENSE" (Revision 42):
	100	* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
	101	* can do whatever you want with this stuff. If we meet some day, and you think
	102	* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
	103	* ----------------------------------------------------------------------------
	104	*
2b484d24	105	* $Id: main.c,v 1.8 2004/10/14 22:24:09 lindak Exp $
b7080c8e A	106	*
	107	*/
	108
b7080c8e A	109	static struct nlist nl[] = {
	110	#define N_IFNET 0
	111	{ "_ifnet" },
	112	#define N_IMP 1
	113	{ "_imp_softc" },
	114	#define N_RTSTAT 2
	115	{ "_rtstat" },
	116	#define N_UNIXSW 3
	117	{ "_localsw" },
	118	#define N_IDP 4
	119	{ "_nspcb"},
	120	#define N_IDPSTAT 5
	121	{ "_idpstat"},
	122	#define N_SPPSTAT 6
	123	{ "_spp_istat"},
	124	#define N_NSERR 7
	125	{ "_ns_errstat"},
	126	#define N_CLNPSTAT 8
	127	{ "_clnp_stat"},
	128	#define IN_NOTUSED 9
	129	{ "_tp_inpcb" },
	130	#define ISO_TP 10
	131	{ "_tp_refinfo" },
	132	#define N_TPSTAT 11
	133	{ "_tp_stat" },
	134	#define N_ESISSTAT 12
	135	{ "_esis_stat"},
	136	#define N_NIMP 13
	137	{ "_nimp"},
	138	#define N_RTREE 14
	139	{ "_rt_tables"},
	140	#define N_CLTP 15
	141	{ "_cltb"},
	142	#define N_CLTPSTAT 16
	143	{ "_cltpstat"},
	144	#define N_NFILE 17
	145	{ "_nfile" },
	146	#define N_FILE 18
	147	{ "_file" },
b7080c8e A	148	#define N_IPX 22
	149	{ "_ipxpcb"},
	150	#define N_IPXSTAT 23
	151	{ "_ipxstat"},
	152	#define N_SPXSTAT 24
	153	{ "_spx_istat"},
	154	#define N_DDPSTAT 25
	155	{ "_ddpstat"},
	156	#define N_DDPCB 26
	157	{ "_ddpcb"},
7ba0088d A	158	#define N_NGSOCKS 27
	159	{ "_ngsocklist"},
	160	#define N_IP6STAT 28
	161	{ "_ip6stat" },
	162	#define N_ICMP6STAT 29
	163	{ "_icmp6stat" },
	164	#define N_IPSECSTAT 30
	165	{ "_ipsecstat" },
	166	#define N_IPSEC6STAT 31
	167	{ "_ipsec6stat" },
	168	#define N_PIM6STAT 32
	169	{ "_pim6stat" },
	170	#define N_MRT6PROTO 33
	171	{ "_ip6_mrtproto" },
	172	#define N_MRT6STAT 34
	173	{ "_mrt6stat" },
	174	#define N_MF6CTABLE 35
	175	{ "_mf6ctable" },
	176	#define N_MIF6TABLE 36
	177	{ "_mif6table" },
	178	#define N_PFKEYSTAT 37
	179	{ "_pfkeystat" },
	180	#define N_MBSTAT 38
	181	{ "_mbstat" },
	182	#define N_MBTYPES 39
	183	{ "_mbtypes" },
	184	#define N_NMBCLUSTERS 40
	185	{ "_nmbclusters" },
	186	#define N_NMBUFS 41
	187	{ "_nmbufs" },
	188	#define N_RTTRASH 42
	189	{ "_rttrash" },
b7080c8e A	190	{ "" },
	191	};
	192
	193
b7080c8e A	194	struct protox {
	195	u_char pr_index; /* index into nlist of cb head */
	196	u_char pr_sindex; /* index into nlist of stat block */
	197	u_char pr_wanted; /* 1 if wanted, 0 otherwise */
7ba0088d A	198	void (pr_cblocks)(u_long, char , int);
	199	/* control blocks printing routine */
	200	void (pr_stats)(u_long, char , int);
	201	/* statistics printing routine */
	202	void (pr_istats)(char ); /* per/if statistics printing routine */
b7080c8e A	203	char pr_name; / well-known name */
	204	int pr_usesysctl; /* true if we use sysctl, not kvm */
	205	} protox[] = {
	206	{ -1, -1, 1, protopr,
7ba0088d	207	tcp_stats, NULL, "tcp", IPPROTO_TCP },
b7080c8e	208	{ -1, -1, 1, protopr,
7ba0088d	209	udp_stats, NULL, "udp", IPPROTO_UDP },
b7080c8e	210	{ -1, -1, 1, protopr,
7ba0088d	211	NULL, NULL, "divert",IPPROTO_DIVERT },
b7080c8e	212	{ -1, -1, 1, protopr,
7ba0088d	213	ip_stats, NULL, "ip", IPPROTO_RAW },
b7080c8e	214	{ -1, -1, 1, protopr,
7ba0088d	215	icmp_stats, NULL, "icmp", IPPROTO_ICMP },
b7080c8e	216	{ -1, -1, 1, protopr,
7ba0088d A	217	igmp_stats, NULL, "igmp", IPPROTO_IGMP },
7ba0088d A	218	#ifdef IPSEC
2b484d24 A	219	{ -1, -1, 1, 0,
2b484d24 A	220	ipsec_stats, NULL, "ipsec", IPPROTO_ESP},
7ba0088d A	221	#endif
	222	#if 0
	223	{ -1, -1, 1, 0,
	224	bdg_stats, NULL, "bdg", 1 /* bridging... */ },
	225	#endif
	226	{ -1, -1, 0, 0,
	227	0, NULL, 0 }
	228	};
	229
	230	#ifdef INET6
	231	struct protox ip6protox[] = {
	232	{ -1, -1, 1, protopr,
	233	tcp_stats, NULL, "tcp", IPPROTO_TCP },
	234	{ -1, -1, 1, protopr,
	235	udp_stats, NULL, "udp", IPPROTO_UDP },
	236	{ -1, N_IP6STAT, 1, protopr,
	237	ip6_stats, ip6_ifstats, "ip6", IPPROTO_RAW },
	238	{ -1, N_ICMP6STAT, 1, protopr,
	239	icmp6_stats, icmp6_ifstats, "icmp6",IPPROTO_ICMPV6 },
	240	#ifdef IPSEC
	241	{ -1, N_IPSEC6STAT, 1, 0,
2b484d24	242	ipsec_stats, NULL, "ipsec6",IPPROTO_ESP },
7ba0088d A	243	#endif
	244	#ifdef notyet
	245	{ -1, N_PIM6STAT, 1, 0,
	246	pim6_stats, NULL, "pim6", 0 },
	247	#endif
	248	{ -1, -1, 1, 0,
2b484d24	249	rip6_stats, NULL, "rip6", IPPROTO_RAW },
7ba0088d A	250	#if 0
	251	{ -1, -1, 1, 0,
	252	bdg_stats, NULL, "bdg", 1 /* bridging... */ },
	253	#endif
b7080c8e	254	{ -1, -1, 0, 0,
7ba0088d	255	0, NULL, 0, 0 }
b7080c8e	256	};
7ba0088d	257	#endif /INET6/
b7080c8e	258
7ba0088d A	259	#ifdef IPSEC
	260	struct protox pfkeyprotox[] = {
	261	{ -1, N_PFKEYSTAT, 1, 0,
2b484d24	262	pfkey_stats, NULL, "pfkey", PF_KEY_V2 },
7ba0088d A	263	{ -1, -1, 0, 0,
	264	0, NULL, 0, 0 }
	265	};
	266	#endif
	267	#ifndef __APPLE__
b7080c8e A	268	struct protox atalkprotox[] = {
b7080c8e A	269	{ N_DDPCB, N_DDPSTAT, 1, atalkprotopr,
7ba0088d	270	ddp_stats, NULL, "ddp" },
b7080c8e	271	{ -1, -1, 0, 0,
7ba0088d A	272	0, NULL, 0 }
	273	};
	274
	275	struct protox netgraphprotox[] = {
	276	{ N_NGSOCKS, -1, 1, netgraphprotopr,
	277	NULL, NULL, "ctrl" },
	278	{ N_NGSOCKS, -1, 1, netgraphprotopr,
	279	NULL, NULL, "data" },
	280	{ -1, NULL, 0, 0,
	281	0, NULL, 0 }
b7080c8e	282	};
b7080c8e	283
b7080c8e A	284	struct protox ipxprotox[] = {
b7080c8e A	285	{ N_IPX, N_IPXSTAT, 1, ipxprotopr,
7ba0088d	286	ipx_stats, NULL, "ipx", 0 },
b7080c8e	287	{ N_IPX, N_SPXSTAT, 1, ipxprotopr,
7ba0088d	288	spx_stats, NULL, "spx", 0 },
b7080c8e	289	{ -1, -1, 0, 0,
7ba0088d	290	0, NULL, 0, 0 }
b7080c8e A	291	};
b7080c8e A	292	#endif
b7080c8e A	293	#ifdef NS
	294	struct protox nsprotox[] = {
	295	{ N_IDP, N_IDPSTAT, 1, nsprotopr,
7ba0088d	296	idp_stats, NULL, "idp" },
b7080c8e	297	{ N_IDP, N_SPPSTAT, 1, nsprotopr,
7ba0088d	298	spp_stats, NULL, "spp" },
b7080c8e	299	{ -1, N_NSERR, 1, 0,
7ba0088d	300	nserr_stats, NULL, "ns_err" },
b7080c8e	301	{ -1, -1, 0, 0,
7ba0088d	302	0, NULL, 0 }
b7080c8e A	303	};
	304	#endif
	305
	306	#ifdef ISO
	307	struct protox isoprotox[] = {
	308	{ ISO_TP, N_TPSTAT, 1, iso_protopr,
7ba0088d	309	tp_stats, NULL, "tp" },
b7080c8e	310	{ N_CLTP, N_CLTPSTAT, 1, iso_protopr,
7ba0088d	311	cltp_stats, NULL, "cltp" },
b7080c8e	312	{ -1, N_CLNPSTAT, 1, 0,
7ba0088d	313	clnp_stats, NULL, "clnp"},
b7080c8e	314	{ -1, N_ESISSTAT, 1, 0,
7ba0088d	315	esis_stats, NULL, "esis"},
b7080c8e	316	{ -1, -1, 0, 0,
7ba0088d	317	0, NULL, 0 }
b7080c8e A	318	};
	319	#endif
	320
7ba0088d A	321	struct protox *protoprotox[] = {
	322	protox,
	323	#ifdef INET6
	324	ip6protox,
b7080c8e	325	#endif
7ba0088d A	326	#ifdef IPSEC
	327	pfkeyprotox,
	328	#endif
	329	#ifndef __APPLE__
	330	ipxprotox, atalkprotox,
b7080c8e	331	#endif
b7080c8e A	332	#ifdef NS
	333	nsprotox,
	334	#endif
	335	#ifdef ISO
	336	isoprotox,
	337	#endif
	338	NULL };
	339
7ba0088d A	340	static void printproto (struct protox , char );
	341	static void usage (void);
	342	static struct protox name2protox (char );
	343	static struct protox knownname (char );
ac2f15b3 A	344	#ifdef SRVCACHE
	345	extern void _serv_cache_close();
	346	#endif
b7080c8e	347
7ba0088d A	348	int Aflag; /* show addresses of protocol control block */
	349	int aflag; /* show all sockets (including servers) */
	350	int bflag; /* show i/f total bytes in/out */
	351	int dflag; /* show i/f dropped packets */
b8dff150	352	#if defined(__APPLE__) && !TARGET_OS_EMBEDDED
7ba0088d	353	int gflag; /* show group (multicast) routing or stats */
b8dff150	354	#endif
7ba0088d A	355	int iflag; /* show interfaces */
	356	int lflag; /* show routing table with use and ref */
	357	int Lflag; /* show size of listen queues */
	358	int mflag; /* show memory stats */
	359	int nflag; /* show addresses numerically */
	360	static int pflag; /* show given protocol */
	361	int rflag; /* show routing tables (or routing stats) */
	362	int sflag; /* show protocol statistics */
	363	int tflag; /* show i/f watchdog timers */
	364	int Wflag; /* wide display */
	365
	366	int interval; /* repeat interval for i/f stats */
	367
	368	char interface; / desired i/f for stats, or NULL for all i/fs */
	369	int unit; /* unit number for above */
	370
	371	int af; /* address family */
b7080c8e A	372
	373	int
	374	main(argc, argv)
	375	int argc;
	376	char *argv[];
	377	{
7ba0088d	378	register struct protox tp = NULL; / for printing cblocks & stats */
b7080c8e A	379	int ch;
	380
	381	af = AF_UNSPEC;
	382
b8dff150	383	while ((ch = getopt(argc, argv, "Aabdf:gI:iLlmnp:rRstuWw:")) != -1)
b7080c8e A	384	switch(ch) {
	385	case 'A':
	386	Aflag = 1;
	387	break;
	388	case 'a':
	389	aflag = 1;
	390	break;
	391	case 'b':
	392	bflag = 1;
	393	break;
	394	case 'd':
	395	dflag = 1;
	396	break;
	397	case 'f':
	398	#ifdef NS
	399	if (strcmp(optarg, "ns") == 0)
	400	af = AF_NS;
	401	else
	402	#endif
	403	if (strcmp(optarg, "ipx") == 0)
	404	af = AF_IPX;
	405	else if (strcmp(optarg, "inet") == 0)
	406	af = AF_INET;
7ba0088d A	407	#ifdef INET6
	408	else if (strcmp(optarg, "inet6") == 0)
	409	af = AF_INET6;
	410	#endif /INET6/
	411	#ifdef INET6
	412	else if (strcmp(optarg, "pfkey") == 0)
	413	af = PF_KEY;
	414	#endif /INET6/
b7080c8e A	415	else if (strcmp(optarg, "unix") == 0)
b7080c8e A	416	af = AF_UNIX;
7ba0088d	417	#ifndef __APPLE__
b7080c8e A	418	else if (strcmp(optarg, "atalk") == 0)
b7080c8e A	419	af = AF_APPLETALK;
7ba0088d A	420	else if (strcmp(optarg, "ng") == 0
	421	\|\| strcmp(optarg, "netgraph") == 0)
	422	af = AF_NETGRAPH;
	423	#endif
b7080c8e A	424	#ifdef ISO
	425	else if (strcmp(optarg, "iso") == 0)
	426	af = AF_ISO;
	427	#endif
	428	else {
	429	errx(1, "%s: unknown address family", optarg);
	430	}
	431	break;
b8dff150	432	#if defined(__APPLE__) && !TARGET_OS_EMBEDDED
b7080c8e A	433	case 'g':
	434	gflag = 1;
	435	break;
b8dff150	436	#endif
b7080c8e A	437	case 'I': {
	438	char *cp;
	439
	440	iflag = 1;
	441	for (cp = interface = optarg; isalpha(*cp); cp++)
	442	continue;
	443	unit = atoi(cp);
	444	break;
	445	}
	446	case 'i':
	447	iflag = 1;
	448	break;
7ba0088d A	449	case 'l':
	450	lflag = 1;
	451	break;
	452	case 'L':
	453	Lflag = 1;
	454	break;
b7080c8e	455	case 'm':
b8dff150	456	mflag++;
b7080c8e A	457	break;
	458	case 'n':
	459	nflag = 1;
	460	break;
	461	case 'p':
	462	if ((tp = name2protox(optarg)) == NULL) {
	463	errx(1,
	464	"%s: unknown or uninstrumented protocol",
	465	optarg);
	466	}
	467	pflag = 1;
	468	break;
	469	case 'r':
	470	rflag = 1;
	471	break;
	472	case 's':
	473	++sflag;
	474	break;
	475	case 't':
	476	tflag = 1;
	477	break;
	478	case 'u':
	479	af = AF_UNIX;
	480	break;
7ba0088d A	481	case 'W':
	482	Wflag = 1;
	483	break;
b7080c8e A	484	case 'w':
	485	interval = atoi(optarg);
	486	iflag = 1;
	487	break;
	488	case '?':
	489	default:
	490	usage();
	491	}
	492	argv += optind;
	493	argc -= optind;
	494
	495	#define BACKWARD_COMPATIBILITY
	496	#ifdef BACKWARD_COMPATIBILITY
	497	if (*argv) {
	498	if (isdigit(**argv)) {
	499	interval = atoi(*argv);
	500	if (interval <= 0)
	501	usage();
	502	++argv;
	503	iflag = 1;
	504	}
b7080c8e A	505	}
	506	#endif
	507
b7080c8e	508	if (mflag) {
2b484d24	509	mbpr();
b7080c8e A	510	exit(0);
	511	}
	512	#if 0
	513	/*
	514	* Keep file descriptors open to avoid overhead
	515	* of open/close on each call to get* routines.
	516	*/
	517	sethostent(1);
	518	setnetent(1);
	519	#else
	520	/*
	521	* This does not make sense any more with DNS being default over
	522	* the files. Doing a setXXXXent(1) causes a tcp connection to be
	523	* used for the queries, which is slower.
	524	*/
	525	#endif
7ba0088d	526	if (iflag && !sflag) {
2b484d24	527	intpr(NULL);
b7080c8e A	528	exit(0);
	529	}
	530	if (rflag) {
b7080c8e	531	if (sflag)
2b484d24	532	rt_stats();
b7080c8e A	533	else
	534	routepr(nl[N_RTREE].n_value);
	535	exit(0);
	536	}
b8dff150	537	#if defined(__APPLE__) && !TARGET_OS_EMBEDDED
b7080c8e	538	if (gflag) {
7ba0088d A	539	if (sflag) {
7ba0088d A	540	if (af == AF_INET \|\| af == AF_UNSPEC)
2b484d24	541	mrt_stats();
7ba0088d A	542	#ifdef INET6
7ba0088d A	543	if (af == AF_INET6 \|\| af == AF_UNSPEC)
2b484d24	544	mrt6_stats();
7ba0088d A	545	#endif
	546	} else {
	547	if (af == AF_INET \|\| af == AF_UNSPEC)
2b484d24	548	mroutepr();
7ba0088d A	549	#ifdef INET6
7ba0088d A	550	if (af == AF_INET6 \|\| af == AF_UNSPEC)
2b484d24	551	mroute6pr();
7ba0088d	552	#endif
b7080c8e	553	}
b8dff150	554	ifmalist_dump();
7ba0088d	555	exit(0);
b7080c8e	556	}
b8dff150	557	#endif
b7080c8e	558
7ba0088d A	559	if (tp) {
	560	printproto(tp, tp->pr_name);
	561	exit(0);
	562	}
	563	if (af == AF_INET \|\| af == AF_UNSPEC)
	564	for (tp = protox; tp->pr_name; tp++)
	565	printproto(tp, tp->pr_name);
	566	#ifdef INET6
	567	if (af == AF_INET6 \|\| af == AF_UNSPEC)
	568	for (tp = ip6protox; tp->pr_name; tp++)
	569	printproto(tp, tp->pr_name);
	570	#endif /INET6/
	571	#ifdef IPSEC
	572	if (af == PF_KEY \|\| af == AF_UNSPEC)
	573	for (tp = pfkeyprotox; tp->pr_name; tp++)
	574	printproto(tp, tp->pr_name);
	575	#endif /IPSEC/
	576	#ifndef __APPLE__
b7080c8e	577	if (af == AF_IPX \|\| af == AF_UNSPEC) {
b7080c8e A	578	for (tp = ipxprotox; tp->pr_name; tp++)
	579	printproto(tp, tp->pr_name);
	580	}
b7080c8e A	581	if (af == AF_APPLETALK \|\| af == AF_UNSPEC)
	582	for (tp = atalkprotox; tp->pr_name; tp++)
	583	printproto(tp, tp->pr_name);
7ba0088d A	584	if (af == AF_NETGRAPH \|\| af == AF_UNSPEC)
	585	for (tp = netgraphprotox; tp->pr_name; tp++)
	586	printproto(tp, tp->pr_name);
b7080c8e A	587	#endif
	588	#ifdef NS
	589	if (af == AF_NS \|\| af == AF_UNSPEC)
	590	for (tp = nsprotox; tp->pr_name; tp++)
	591	printproto(tp, tp->pr_name);
	592	#endif
	593	#ifdef ISO
	594	if (af == AF_ISO \|\| af == AF_UNSPEC)
	595	for (tp = isoprotox; tp->pr_name; tp++)
	596	printproto(tp, tp->pr_name);
	597	#endif
7ba0088d	598	if ((af == AF_UNIX \|\| af == AF_UNSPEC) && !Lflag && !sflag)
b7080c8e	599	unixpr();
ac2f15b3 A	600	#ifdef SRVCACHE
	601	_serv_cache_close();
	602	#endif
b7080c8e A	603	exit(0);
	604	}
	605
	606	/*
	607	* Print out protocol statistics or control blocks (per sflag).
	608	* If the interface was not specifically requested, and the symbol
	609	* is not in the namelist, ignore this one.
	610	*/
	611	static void
	612	printproto(tp, name)
	613	register struct protox *tp;
	614	char *name;
	615	{
7ba0088d	616	void (pr)(u_long, char , int);
b7080c8e A	617	u_long off;
	618
	619	if (sflag) {
b8dff150	620	if (iflag && !pflag) {
7ba0088d	621	if (tp->pr_istats)
2b484d24	622	intpr(tp->pr_istats);
b8dff150	623	else
7ba0088d A	624	printf("%s: no per-interface stats routine\n",
	625	tp->pr_name);
	626	return;
	627	}
	628	else {
	629	pr = tp->pr_stats;
	630	if (!pr) {
	631	if (pflag)
	632	printf("%s: no stats routine\n",
	633	tp->pr_name);
	634	return;
	635	}
	636	off = tp->pr_usesysctl ? tp->pr_usesysctl
	637	: nl[tp->pr_sindex].n_value;
	638	}
b7080c8e A	639	} else {
b7080c8e A	640	pr = tp->pr_cblocks;
7ba0088d A	641	if (!pr) {
	642	if (pflag)
	643	printf("%s: no PCB routine\n", tp->pr_name);
	644	return;
	645	}
b7080c8e A	646	off = tp->pr_usesysctl ? tp->pr_usesysctl
	647	: nl[tp->pr_index].n_value;
	648	}
b8dff150 A	649	if (pr != NULL && (off \|\| af != AF_UNSPEC)) {
	650	if (sflag && iflag && pflag)
	651	intervalpr(pr, off, name, af);
	652	else
	653	(*pr)(off, name, af);
	654	} else {
2b484d24	655	printf("### no stats for %s\n", name);
b7080c8e	656	}
b7080c8e A	657	}
	658
	659	char *
7ba0088d	660	plural(int n)
b7080c8e A	661	{
	662	return (n != 1 ? "s" : "");
	663	}
	664
	665	char *
7ba0088d	666	plurales(int n)
b7080c8e A	667	{
	668	return (n != 1 ? "es" : "");
	669	}
	670
	671	/*
	672	* Find the protox for the given "well-known" name.
	673	*/
	674	static struct protox *
7ba0088d	675	knownname(char *name)
b7080c8e A	676	{
	677	struct protox *tpp, tp;
	678
	679	for (tpp = protoprotox; *tpp; tpp++)
	680	for (tp = *tpp; tp->pr_name; tp++)
	681	if (strcmp(tp->pr_name, name) == 0)
	682	return (tp);
	683	return (NULL);
	684	}
	685
	686	/*
	687	* Find the protox corresponding to name.
	688	*/
	689	static struct protox *
7ba0088d	690	name2protox(char *name)
b7080c8e A	691	{
	692	struct protox *tp;
	693	char *alias; / alias from p->aliases */
	694	struct protoent *p;
	695
	696	/*
	697	* Try to find the name in the list of "well-known" names. If that
	698	* fails, check if name is an alias for an Internet protocol.
	699	*/
7ba0088d	700	if ((tp = knownname(name)) != NULL)
b7080c8e A	701	return (tp);
	702
	703	setprotoent(1); /* make protocol lookup cheaper */
7ba0088d	704	while ((p = getprotoent()) != NULL) {
b7080c8e A	705	/* assert: name not same as p->name */
	706	for (alias = p->p_aliases; *alias; alias++)
	707	if (strcmp(name, *alias) == 0) {
	708	endprotoent();
	709	return (knownname(p->p_name));
	710	}
	711	}
	712	endprotoent();
	713	return (NULL);
	714	}
	715
b8dff150 A	716	#define NETSTAT_USAGE "\
	717	Usage: netstat [-AaLlnW] [-f address_family \| -p protocol]\n\
	718	netstat [-gilns] [-f address_family]\n\
	719	netstat -i \| -I interface [-w wait] [-abdgt]\n\
	720	netstat -s [-s] [-f address_family \| -p protocol] [-w wait]\n\
	721	netstat -i \| -I interface -s [-f address_family \| -p protocol]\n\
	722	netstat -m [-m]\n\
	723	netstat -r [-Aaln] [-f address_family]\n\
	724	netstat -rs [-s]\n\
	725	"
	726
b7080c8e	727	static void
7ba0088d	728	usage(void)
b7080c8e	729	{
b8dff150	730	(void) fprintf(stderr, "%s\n", NETSTAT_USAGE);
b7080c8e A	731	exit(1);
b7080c8e A	732	}
b8dff150	733