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main.c revision 1.83.2.2
      1  1.83.2.2       tls /*	$NetBSD: main.c,v 1.83.2.2 2013/06/23 06:29:01 tls Exp $	*/
      2       1.8   thorpej 
      3       1.1       cgd /*
      4       1.6   mycroft  * Copyright (c) 1983, 1988, 1993
      5       1.6   mycroft  *	Regents of the University of California.  All rights reserved.
      6       1.1       cgd  *
      7       1.1       cgd  * Redistribution and use in source and binary forms, with or without
      8       1.1       cgd  * modification, are permitted provided that the following conditions
      9       1.1       cgd  * are met:
     10       1.1       cgd  * 1. Redistributions of source code must retain the above copyright
     11       1.1       cgd  *    notice, this list of conditions and the following disclaimer.
     12       1.1       cgd  * 2. Redistributions in binary form must reproduce the above copyright
     13       1.1       cgd  *    notice, this list of conditions and the following disclaimer in the
     14       1.1       cgd  *    documentation and/or other materials provided with the distribution.
     15      1.42       agc  * 3. Neither the name of the University nor the names of its contributors
     16       1.1       cgd  *    may be used to endorse or promote products derived from this software
     17       1.1       cgd  *    without specific prior written permission.
     18       1.1       cgd  *
     19       1.1       cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20       1.1       cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21       1.1       cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22       1.1       cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23       1.1       cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24       1.1       cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25       1.1       cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26       1.1       cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27       1.1       cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28       1.1       cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29       1.1       cgd  * SUCH DAMAGE.
     30       1.1       cgd  */
     31       1.1       cgd 
     32      1.12     lukem #include <sys/cdefs.h>
     33       1.1       cgd #ifndef lint
     34      1.70     lukem __COPYRIGHT("@(#) Copyright (c) 1983, 1988, 1993\
     35      1.70     lukem  Regents of the University of California.  All rights reserved.");
     36       1.1       cgd #endif /* not lint */
     37       1.1       cgd 
     38       1.1       cgd #ifndef lint
     39       1.8   thorpej #if 0
     40       1.8   thorpej static char sccsid[] = "from: @(#)main.c	8.4 (Berkeley) 3/1/94";
     41       1.8   thorpej #else
     42  1.83.2.2       tls __RCSID("$NetBSD: main.c,v 1.83.2.2 2013/06/23 06:29:01 tls Exp $");
     43       1.8   thorpej #endif
     44       1.1       cgd #endif /* not lint */
     45       1.1       cgd 
     46       1.1       cgd #include <sys/param.h>
     47       1.6   mycroft #include <sys/file.h>
     48       1.6   mycroft #include <sys/protosw.h>
     49       1.1       cgd #include <sys/socket.h>
     50       1.6   mycroft 
     51      1.37     enami #include <net/if.h>
     52       1.6   mycroft #include <netinet/in.h>
     53       1.6   mycroft 
     54       1.6   mycroft #include <ctype.h>
     55      1.15       mrg #include <err.h>
     56       1.1       cgd #include <errno.h>
     57       1.6   mycroft #include <kvm.h>
     58       1.6   mycroft #include <limits.h>
     59       1.1       cgd #include <netdb.h>
     60       1.1       cgd #include <nlist.h>
     61       1.6   mycroft #include <paths.h>
     62       1.1       cgd #include <stdio.h>
     63       1.1       cgd #include <stdlib.h>
     64       1.1       cgd #include <string.h>
     65       1.6   mycroft #include <unistd.h>
     66       1.6   mycroft #include "netstat.h"
     67      1.77     pooka #include "prog_ops.h"
     68       1.1       cgd 
     69       1.1       cgd struct nlist nl[] = {
     70       1.1       cgd #define	N_MBSTAT	0
     71      1.71     lukem 	{ "_mbstat", 0, 0, 0, 0 },
     72       1.1       cgd #define	N_IPSTAT	1
     73      1.71     lukem 	{ "_ipstat", 0, 0, 0, 0 },	/* not available via kvm */
     74       1.7   mycroft #define	N_TCBTABLE	2
     75      1.71     lukem 	{ "_tcbtable", 0, 0, 0, 0 },
     76       1.1       cgd #define	N_TCPSTAT	3
     77      1.71     lukem 	{ "_tcpstat", 0, 0, 0, 0 },	/* not available via kvm */
     78       1.7   mycroft #define	N_UDBTABLE	4
     79      1.71     lukem 	{ "_udbtable", 0, 0, 0, 0 },
     80       1.1       cgd #define	N_UDPSTAT	5
     81      1.71     lukem 	{ "_udpstat", 0, 0, 0, 0 },	/* not available via kvm */
     82       1.1       cgd #define	N_IFNET		6
     83      1.71     lukem 	{ "_ifnet", 0, 0, 0, 0 },
     84  1.83.2.2       tls #define	N_ICMPSTAT	7
     85      1.71     lukem 	{ "_icmpstat", 0, 0, 0, 0 },	/* not available via kvm */
     86  1.83.2.2       tls #define	N_RTSTAT	8
     87      1.71     lukem 	{ "_rtstat", 0, 0, 0, 0 },
     88  1.83.2.2       tls #define	N_UNIXSW	9
     89      1.71     lukem 	{ "_unixsw", 0, 0, 0, 0 },
     90  1.83.2.2       tls #define N_RTREE		10
     91      1.71     lukem 	{ "_rt_tables", 0, 0, 0, 0 },
     92  1.83.2.2       tls #define	N_NFILE		11
     93      1.71     lukem 	{ "_nfile", 0, 0, 0, 0 },
     94  1.83.2.2       tls #define N_IGMPSTAT	12
     95      1.71     lukem 	{ "_igmpstat", 0, 0, 0, 0 },	/* not available via kvm */
     96  1.83.2.2       tls #define N_MRTPROTO	13
     97      1.71     lukem 	{ "_ip_mrtproto", 0, 0, 0, 0 },
     98  1.83.2.2       tls #define N_MRTSTAT	14
     99      1.71     lukem 	{ "_mrtstat", 0, 0, 0, 0 },
    100  1.83.2.2       tls #define N_MFCHASHTBL	15
    101      1.71     lukem 	{ "_mfchashtbl", 0, 0, 0, 0 },
    102  1.83.2.2       tls #define	N_MFCHASH	16
    103      1.71     lukem 	{ "_mfchash", 0, 0, 0, 0 },
    104  1.83.2.2       tls #define N_VIFTABLE	17
    105      1.71     lukem 	{ "_viftable", 0, 0, 0, 0 },
    106  1.83.2.2       tls #define N_MSIZE		18
    107      1.71     lukem 	{ "_msize", 0, 0, 0, 0 },
    108  1.83.2.2       tls #define N_MCLBYTES	19
    109      1.71     lukem 	{ "_mclbytes", 0, 0, 0, 0 },
    110  1.83.2.2       tls #define N_DDPSTAT	20
    111      1.71     lukem 	{ "_ddpstat", 0, 0, 0, 0 },	/* not available via kvm */
    112  1.83.2.2       tls #define N_DDPCB		21
    113      1.71     lukem 	{ "_ddpcb", 0, 0, 0, 0 },
    114  1.83.2.2       tls #define N_MBPOOL	22
    115      1.71     lukem 	{ "_mbpool", 0, 0, 0, 0 },
    116  1.83.2.2       tls #define N_MCLPOOL	23
    117      1.71     lukem 	{ "_mclpool", 0, 0, 0, 0 },
    118  1.83.2.2       tls #define N_IP6STAT	24
    119      1.71     lukem 	{ "_ip6stat", 0, 0, 0, 0 },	/* not available via kvm */
    120  1.83.2.2       tls #define N_TCP6STAT	25
    121      1.71     lukem 	{ "_tcp6stat", 0, 0, 0, 0 },	/* not available via kvm */
    122  1.83.2.2       tls #define N_UDP6STAT	26
    123      1.71     lukem 	{ "_udp6stat", 0, 0, 0, 0 },	/* not available via kvm */
    124  1.83.2.2       tls #define N_ICMP6STAT	27
    125      1.71     lukem 	{ "_icmp6stat", 0, 0, 0, 0 },	/* not available via kvm */
    126  1.83.2.2       tls #define N_IPSECSTAT	28
    127      1.71     lukem 	{ "_ipsecstat", 0, 0, 0, 0 },	/* not available via kvm */
    128  1.83.2.2       tls #define N_IPSEC6STAT	29
    129      1.71     lukem 	{ "_ipsec6stat", 0, 0, 0, 0 },	/* not available via kvm */
    130  1.83.2.2       tls #define N_PIM6STAT	30
    131      1.71     lukem 	{ "_pim6stat", 0, 0, 0, 0 },	/* not available via kvm */
    132  1.83.2.2       tls #define N_MRT6PROTO	31
    133      1.71     lukem 	{ "_ip6_mrtproto", 0, 0, 0, 0 },
    134  1.83.2.2       tls #define N_MRT6STAT	32
    135      1.71     lukem 	{ "_mrt6stat", 0, 0, 0, 0 },
    136  1.83.2.2       tls #define N_MF6CTABLE	33
    137      1.71     lukem 	{ "_mf6ctable", 0, 0, 0, 0 },
    138  1.83.2.2       tls #define N_MIF6TABLE	34
    139      1.71     lukem 	{ "_mif6table", 0, 0, 0, 0 },
    140  1.83.2.2       tls #define N_PFKEYSTAT	35
    141      1.71     lukem 	{ "_pfkeystat", 0, 0, 0, 0 },	/* not available via kvm */
    142  1.83.2.2       tls #define N_ARPSTAT	36
    143      1.71     lukem 	{ "_arpstat", 0, 0, 0, 0 },	/* not available via kvm */
    144  1.83.2.2       tls #define N_RIP6STAT	37
    145      1.71     lukem 	{ "_rip6stat", 0, 0, 0, 0 },	/* not available via kvm */
    146  1.83.2.2       tls #define	N_ARPINTRQ	38
    147      1.71     lukem 	{ "_arpintrq", 0, 0, 0, 0 },
    148  1.83.2.2       tls #define	N_IPINTRQ	39
    149      1.71     lukem 	{ "_ipintrq", 0, 0, 0, 0 },
    150  1.83.2.2       tls #define	N_IP6INTRQ	40
    151      1.71     lukem 	{ "_ip6intrq", 0, 0, 0, 0 },
    152  1.83.2.2       tls #define	N_ATINTRQ1	41
    153      1.71     lukem 	{ "_atintrq1", 0, 0, 0, 0 },
    154  1.83.2.2       tls #define	N_ATINTRQ2	42
    155      1.71     lukem 	{ "_atintrq2", 0, 0, 0, 0 },
    156  1.83.2.2       tls #define	N_NSINTRQ	43
    157      1.71     lukem 	{ "_nsintrq", 0, 0, 0, 0 },
    158  1.83.2.2       tls #define	N_LLCINTRQ	44
    159      1.71     lukem 	{ "_llcintrq", 0, 0, 0, 0 },
    160  1.83.2.2       tls #define	N_HDINTRQ	45
    161      1.71     lukem 	{ "_hdintrq", 0, 0, 0, 0 },
    162  1.83.2.2       tls #define	N_NATMINTRQ	46
    163      1.71     lukem 	{ "_natmintrq", 0, 0, 0, 0 },
    164  1.83.2.2       tls #define	N_PPPOEDISCINQ	47
    165      1.71     lukem 	{ "_ppoediscinq", 0, 0, 0, 0 },
    166  1.83.2.2       tls #define	N_PPPOEINQ	48
    167      1.71     lukem 	{ "_ppoeinq", 0, 0, 0, 0 },
    168  1.83.2.2       tls #define	N_PKINTRQ	49
    169      1.71     lukem 	{ "_pkintrq", 0, 0, 0, 0 },
    170  1.83.2.2       tls #define	N_HARDCLOCK_TICKS 50
    171      1.71     lukem 	{ "_hardclock_ticks", 0, 0, 0, 0 },
    172  1.83.2.2       tls #define N_PIMSTAT	51
    173      1.71     lukem 	{ "_pimstat", 0, 0, 0, 0 },
    174  1.83.2.2       tls #define N_CARPSTAT	52
    175      1.71     lukem 	{ "_carpstats", 0, 0, 0, 0 },	/* not available via kvm */
    176  1.83.2.2       tls #define N_PFSYNCSTAT	53
    177      1.73  degroote 	{ "_pfsyncstats", 0, 0, 0, 0},  /* not available via kvm */
    178      1.71     lukem 	{ "", 0, 0, 0, 0 },
    179       1.1       cgd };
    180       1.1       cgd 
    181       1.1       cgd struct protox {
    182       1.1       cgd 	u_char	pr_index;		/* index into nlist of cb head */
    183       1.1       cgd 	u_char	pr_sindex;		/* index into nlist of stat block */
    184       1.1       cgd 	u_char	pr_wanted;		/* 1 if wanted, 0 otherwise */
    185      1.11  christos 	void	(*pr_cblocks)		/* control blocks printing routine */
    186      1.71     lukem 			__P((u_long, const char *));
    187      1.11  christos 	void	(*pr_stats)		/* statistics printing routine */
    188      1.71     lukem 			__P((u_long, const char *));
    189      1.25    itojun 	void	(*pr_istats)
    190      1.71     lukem 			__P((const char *));	/* per/if statistics printing routine */
    191      1.14   thorpej 	void	(*pr_dump)		/* PCB state dump routine */
    192  1.83.2.2       tls 			__P((u_long, const char *, u_long));
    193      1.71     lukem 	const char *pr_name;		/* well-known name */
    194       1.1       cgd } protox[] = {
    195       1.7   mycroft 	{ N_TCBTABLE,	N_TCPSTAT,	1,	protopr,
    196      1.25    itojun 	  tcp_stats,	NULL,		tcp_dump,	"tcp" },
    197       1.7   mycroft 	{ N_UDBTABLE,	N_UDPSTAT,	1,	protopr,
    198      1.25    itojun 	  udp_stats,	NULL,		0,	"udp" },
    199       1.1       cgd 	{ -1,		N_IPSTAT,	1,	0,
    200      1.25    itojun 	  ip_stats,	NULL,		0,	"ip" },
    201       1.1       cgd 	{ -1,		N_ICMPSTAT,	1,	0,
    202      1.25    itojun 	  icmp_stats,	NULL,		0,	"icmp" },
    203       1.4    brezak 	{ -1,		N_IGMPSTAT,	1,	0,
    204      1.25    itojun 	  igmp_stats,	NULL,		0,	"igmp" },
    205      1.52  liamjfoy 	{ -1,		N_CARPSTAT,	1,	0,
    206      1.52  liamjfoy 	  carp_stats,	NULL,		0,	"carp" },
    207      1.23    itojun #ifdef IPSEC
    208      1.23    itojun 	{ -1,		N_IPSECSTAT,	1,	0,
    209      1.83  drochner 	  fast_ipsec_stats, NULL,	0,	"ipsec" },
    210      1.23    itojun #endif
    211      1.47      manu 	{ -1,		N_PIMSTAT,	1,	0,
    212      1.47      manu 	  pim_stats,	NULL,		0,	"pim" },
    213      1.73  degroote 	{ -1,		N_PFSYNCSTAT,  1,  0,
    214      1.73  degroote 	  pfsync_stats,  NULL,		0,  "pfsync" },
    215       1.1       cgd 	{ -1,		-1,		0,	0,
    216      1.25    itojun 	  0,		NULL,		0,	0 }
    217       1.1       cgd };
    218       1.1       cgd 
    219      1.23    itojun #ifdef INET6
    220      1.23    itojun struct protox ip6protox[] = {
    221      1.23    itojun 	{ -1,		N_IP6STAT,	1,	0,
    222      1.25    itojun 	  ip6_stats,	ip6_ifstats,	0,	"ip6" },
    223      1.23    itojun 	{ -1,		N_ICMP6STAT,	1,	0,
    224      1.25    itojun 	  icmp6_stats,	icmp6_ifstats,	0,	"icmp6" },
    225      1.23    itojun #ifdef TCP6
    226      1.43    itojun 	{ N_TCBTABLE,	N_TCP6STAT,	1,	ip6protopr,
    227      1.25    itojun 	  tcp6_stats,	NULL,		tcp6_dump,	"tcp6" },
    228      1.23    itojun #else
    229      1.43    itojun 	{ N_TCBTABLE,	N_TCP6STAT,	1,	ip6protopr,
    230      1.25    itojun 	  tcp_stats,	NULL,		tcp_dump,	"tcp6" },
    231      1.23    itojun #endif
    232      1.43    itojun 	{ N_UDBTABLE,	N_UDP6STAT,	1,	ip6protopr,
    233      1.25    itojun 	  udp6_stats,	NULL,		0,	"udp6" },
    234      1.23    itojun #ifdef IPSEC
    235      1.23    itojun 	{ -1,		N_IPSEC6STAT,	1,	0,
    236      1.83  drochner 	  fast_ipsec_stats, NULL,	0,	"ipsec6" },
    237      1.23    itojun #endif
    238      1.23    itojun 	{ -1,		N_PIM6STAT,	1,	0,
    239      1.25    itojun 	  pim6_stats,	NULL,		0,	"pim6" },
    240      1.34    itojun 	{ -1,		N_RIP6STAT,	1,	0,
    241      1.34    itojun 	  rip6_stats,	NULL,		0,	"rip6" },
    242      1.23    itojun 	{ -1,		-1,		0,	0,
    243      1.25    itojun 	  0,		NULL,		0,	0 }
    244      1.23    itojun };
    245      1.23    itojun #endif
    246      1.23    itojun 
    247      1.29     jhawk struct protox arpprotox[] = {
    248      1.29     jhawk 	{ -1,		N_ARPSTAT,	1,	0,
    249      1.29     jhawk 	  arp_stats,	NULL,		0,	"arp" },
    250      1.31    itojun 	{ -1,		-1,		0,	0,
    251      1.31    itojun 	  0,		NULL,		0,	0 }
    252      1.29     jhawk };
    253      1.29     jhawk 
    254      1.26    itojun #ifdef IPSEC
    255      1.26    itojun struct protox pfkeyprotox[] = {
    256      1.26    itojun 	{ -1,		N_PFKEYSTAT,	1,	0,
    257      1.26    itojun 	  pfkey_stats,	NULL,		0,	"pfkey" },
    258      1.26    itojun 	{ -1,		-1,		0,	0,
    259      1.26    itojun 	  0,		NULL,		0,	0 }
    260      1.26    itojun };
    261      1.26    itojun #endif
    262      1.26    itojun 
    263      1.18       mrg #ifndef SMALL
    264      1.11  christos struct protox atalkprotox[] = {
    265      1.11  christos 	{ N_DDPCB,	N_DDPSTAT,	1,	atalkprotopr,
    266      1.25    itojun 	  ddp_stats,	NULL,		0,	"ddp" },
    267      1.11  christos 	{ -1,		-1,		0,	0,
    268      1.71     lukem 	  0,		NULL,		0,	NULL }
    269      1.11  christos };
    270      1.18       mrg #endif
    271       1.1       cgd 
    272      1.18       mrg struct protox *protoprotox[] = { protox,
    273      1.23    itojun #ifdef INET6
    274      1.23    itojun 				 ip6protox,
    275      1.23    itojun #endif
    276      1.29     jhawk 				 arpprotox,
    277      1.26    itojun #ifdef IPSEC
    278      1.26    itojun 				 pfkeyprotox,
    279      1.26    itojun #endif
    280      1.18       mrg #ifndef SMALL
    281      1.59      matt 				 atalkprotox,
    282      1.18       mrg #endif
    283      1.18       mrg 				 NULL };
    284       1.1       cgd 
    285      1.37     enami const struct softintrq {
    286      1.37     enami 	const char *siq_name;
    287      1.37     enami 	int siq_index;
    288      1.37     enami } softintrq[] = {
    289      1.37     enami 	{ "arpintrq", N_ARPINTRQ },
    290      1.37     enami 	{ "ipintrq", N_IPINTRQ },
    291      1.37     enami 	{ "ip6intrq", N_IP6INTRQ },
    292      1.37     enami 	{ "atintrq1", N_ATINTRQ1 },
    293      1.37     enami 	{ "atintrq2", N_ATINTRQ2 },
    294      1.37     enami 	{ "llcintrq", N_LLCINTRQ },
    295      1.37     enami 	{ "hdintrq", N_HDINTRQ },
    296      1.37     enami 	{ "natmintrq", N_NATMINTRQ },
    297      1.38     enami 	{ "ppoediscinq", N_PPPOEDISCINQ },
    298      1.38     enami 	{ "ppoeinq", N_PPPOEINQ },
    299      1.38     enami 	{ "pkintrq", N_PKINTRQ },
    300      1.37     enami 	{ NULL, -1 },
    301      1.37     enami };
    302      1.37     enami 
    303      1.11  christos int main __P((int, char *[]));
    304      1.71     lukem static void printproto __P((struct protox *, const char *));
    305      1.37     enami static void print_softintrq __P((void));
    306      1.81     joerg __dead static void usage(void);
    307      1.71     lukem static struct protox *name2protox __P((const char *));
    308      1.71     lukem static struct protox *knownname __P((const char *));
    309      1.78    dyoung static void prepare(const char *, const char *, struct protox *tp);
    310      1.79    dyoung static kvm_t *prepare_kvmd(const char *, const char *, char *);
    311       1.1       cgd 
    312      1.79    dyoung static kvm_t *kvmd = NULL;
    313      1.62      elad gid_t egid;
    314      1.71     lukem int interval;	/* repeat interval for i/f stats */
    315      1.78    dyoung static const char *nlistf = NULL, *memf = NULL;
    316      1.62      elad 
    317      1.78    dyoung kvm_t *
    318      1.78    dyoung get_kvmd(void)
    319      1.78    dyoung {
    320      1.79    dyoung 	char buf[_POSIX2_LINE_MAX];
    321      1.79    dyoung 
    322      1.79    dyoung 	if (kvmd != NULL)
    323      1.79    dyoung 		return kvmd;
    324      1.79    dyoung 	if ((kvmd = prepare_kvmd(nlistf, memf, buf)) == NULL)
    325      1.80     njoly 		errx(1, "kvm error: %s", buf);
    326      1.79    dyoung 	return kvmd;
    327      1.78    dyoung }
    328      1.78    dyoung 
    329      1.78    dyoung static kvm_t *
    330      1.79    dyoung prepare_kvmd(const char *nf, const char *mf, char *errbuf)
    331      1.62      elad {
    332      1.79    dyoung 	kvm_t *k;
    333      1.62      elad 
    334      1.78    dyoung 	(void)setegid(egid);
    335      1.79    dyoung 	k = kvm_openfiles(nf, mf, NULL, O_RDONLY, errbuf);
    336      1.78    dyoung 	(void)setgid(getgid());
    337      1.79    dyoung 	return k;
    338      1.78    dyoung }
    339      1.78    dyoung 
    340      1.78    dyoung void
    341      1.78    dyoung prepare(const char *nf, const char *mf, struct protox *tp)
    342      1.78    dyoung {
    343      1.79    dyoung 	char buf[_POSIX2_LINE_MAX];
    344      1.62      elad 	/*
    345      1.62      elad 	 * Try to figure out if we can use sysctl or not.
    346      1.62      elad 	 */
    347      1.78    dyoung 	if (nf != NULL && mf != NULL) {
    348      1.72      elad 		/* Of course, we can't use sysctl with dumps. */
    349      1.72      elad 		if (force_sysctl)
    350      1.72      elad 			errx(EXIT_FAILURE, "can't use sysctl with dumps");
    351      1.72      elad 
    352      1.62      elad 		/* If we have -M and -N, we're not dealing with live memory. */
    353      1.62      elad 		use_sysctl = 0;
    354      1.79    dyoung 	} else if (qflag ||
    355      1.62      elad 		   iflag ||
    356      1.63      elad #ifndef SMALL
    357      1.62      elad 		   gflag ||
    358      1.64   mlelstv #endif
    359      1.64   mlelstv 		   (pflag && tp->pr_sindex == N_PIMSTAT) ||
    360      1.62      elad 		   Pflag) {
    361      1.62      elad 		/* These flags are not yet supported via sysctl(3). */
    362      1.62      elad 		use_sysctl = 0;
    363      1.62      elad 	} else {
    364      1.62      elad 		/* We can use sysctl(3). */
    365      1.62      elad 		use_sysctl = 1;
    366      1.62      elad 	}
    367      1.62      elad 
    368      1.72      elad 	if (force_sysctl && !use_sysctl) {
    369      1.72      elad 		/* Let the user know what's about to happen. */
    370      1.72      elad 		warnx("forcing sysctl usage even though it might not be "\
    371      1.72      elad 		    "supported");
    372      1.72      elad 		use_sysctl = 1;
    373      1.72      elad 	}
    374      1.72      elad 
    375      1.79    dyoung 	kvmd = prepare_kvmd(nf, mf, buf);
    376      1.79    dyoung 
    377      1.62      elad 	if (!use_sysctl) {
    378      1.78    dyoung 
    379      1.79    dyoung 		if (kvmd == NULL)
    380      1.80     njoly 			errx(1, "kvm error: %s", buf);
    381      1.62      elad 		if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) {
    382      1.78    dyoung 			if (nf)
    383      1.78    dyoung 				errx(1, "%s: no namelist", nf);
    384      1.62      elad 			else
    385      1.62      elad 				errx(1, "no namelist");
    386      1.62      elad 		}
    387      1.62      elad 	} else
    388      1.62      elad 		(void)setgid(getgid());
    389      1.62      elad }
    390       1.1       cgd 
    391       1.6   mycroft int
    392      1.82      matt main(int argc, char *argv[])
    393       1.1       cgd {
    394      1.12     lukem 	struct protoent *p;
    395      1.12     lukem 	struct protox *tp;	/* for printing cblocks & stats */
    396       1.1       cgd 	int ch;
    397      1.62      elad 	char *cp;
    398      1.14   thorpej 	u_long pcbaddr;
    399       1.6   mycroft 
    400      1.77     pooka 	if (prog_init) {
    401      1.77     pooka 		if (prog_init() == -1)
    402      1.77     pooka 			err(1, "init failed");
    403      1.77     pooka 		force_sysctl = 1; /* cheap trick */
    404      1.77     pooka 	}
    405      1.77     pooka 
    406      1.62      elad 	egid = getegid();
    407      1.15       mrg 	(void)setegid(getgid());
    408      1.12     lukem 	tp = NULL;
    409       1.6   mycroft 	af = AF_UNSPEC;
    410      1.14   thorpej 	pcbaddr = 0;
    411       1.1       cgd 
    412      1.37     enami 	while ((ch = getopt(argc, argv,
    413      1.78    dyoung 	    "AabBdf:ghI:LliM:mN:nP:p:qrsStTuVvw:X")) != -1)
    414      1.37     enami 		switch (ch) {
    415       1.1       cgd 		case 'A':
    416       1.1       cgd 			Aflag = 1;
    417       1.1       cgd 			break;
    418       1.1       cgd 		case 'a':
    419       1.1       cgd 			aflag = 1;
    420      1.13       kml 			break;
    421      1.13       kml 		case 'b':
    422      1.13       kml 			bflag = 1;
    423       1.1       cgd 			break;
    424      1.49    rpaulo 		case 'B':
    425      1.49    rpaulo 			Bflag = 1;
    426      1.49    rpaulo 			break;
    427       1.1       cgd 		case 'd':
    428       1.1       cgd 			dflag = 1;
    429       1.1       cgd 			break;
    430       1.1       cgd 		case 'f':
    431      1.59      matt 			if (strcmp(optarg, "inet") == 0)
    432       1.1       cgd 				af = AF_INET;
    433      1.23    itojun 			else if (strcmp(optarg, "inet6") == 0)
    434      1.23    itojun 				af = AF_INET6;
    435      1.29     jhawk 			else if (strcmp(optarg, "arp") == 0)
    436      1.29     jhawk 				af = AF_ARP;
    437      1.28    itojun 			else if (strcmp(optarg, "pfkey") == 0)
    438      1.28    itojun 				af = PF_KEY;
    439      1.17     lukem 			else if (strcmp(optarg, "unix") == 0
    440      1.17     lukem 			    || strcmp(optarg, "local") == 0)
    441      1.17     lukem 				af = AF_LOCAL;
    442      1.11  christos 			else if (strcmp(optarg, "atalk") == 0)
    443      1.11  christos 				af = AF_APPLETALK;
    444      1.76    kefren 			else if (strcmp(optarg, "mpls") == 0)
    445      1.76    kefren 				af = AF_MPLS;
    446      1.16       mrg 			else
    447      1.16       mrg 				errx(1, "%s: unknown address family",
    448      1.16       mrg 				    optarg);
    449       1.1       cgd 			break;
    450      1.18       mrg #ifndef SMALL
    451       1.6   mycroft 		case 'g':
    452       1.6   mycroft 			gflag = 1;
    453       1.1       cgd 			break;
    454      1.18       mrg #endif
    455      1.74     pooka 		case 'h':
    456      1.74     pooka 			hflag = 1;
    457      1.74     pooka 			break;
    458       1.9   thorpej 		case 'I':
    459       1.1       cgd 			iflag = 1;
    460       1.9   thorpej 			interface = optarg;
    461       1.1       cgd 			break;
    462       1.1       cgd 		case 'i':
    463       1.1       cgd 			iflag = 1;
    464      1.24        is 			break;
    465      1.24        is 		case 'L':
    466      1.24        is 			Lflag = 1;
    467       1.1       cgd 			break;
    468      1.23    itojun 		case 'l':
    469      1.23    itojun 			lflag = 1;
    470      1.23    itojun 			break;
    471       1.1       cgd 		case 'M':
    472       1.6   mycroft 			memf = optarg;
    473       1.1       cgd 			break;
    474       1.1       cgd 		case 'm':
    475       1.1       cgd 			mflag = 1;
    476       1.1       cgd 			break;
    477       1.1       cgd 		case 'N':
    478       1.6   mycroft 			nlistf = optarg;
    479       1.1       cgd 			break;
    480       1.1       cgd 		case 'n':
    481      1.53      elad 			numeric_addr = numeric_port = nflag = 1;
    482       1.1       cgd 			break;
    483      1.14   thorpej 		case 'P':
    484      1.41     lukem 			errno = 0;
    485      1.14   thorpej 			pcbaddr = strtoul(optarg, &cp, 16);
    486      1.16       mrg 			if (*cp != '\0' || errno == ERANGE)
    487      1.16       mrg 				errx(1, "invalid PCB address %s",
    488      1.16       mrg 				    optarg);
    489      1.14   thorpej 			Pflag = 1;
    490      1.14   thorpej 			break;
    491       1.1       cgd 		case 'p':
    492      1.16       mrg 			if ((tp = name2protox(optarg)) == NULL)
    493      1.16       mrg 				errx(1, "%s: unknown or uninstrumented protocol",
    494      1.16       mrg 				    optarg);
    495       1.1       cgd 			pflag = 1;
    496       1.1       cgd 			break;
    497      1.37     enami 		case 'q':
    498      1.37     enami 			qflag = 1;
    499      1.37     enami 			break;
    500       1.1       cgd 		case 'r':
    501       1.1       cgd 			rflag = 1;
    502       1.1       cgd 			break;
    503       1.1       cgd 		case 's':
    504       1.6   mycroft 			++sflag;
    505       1.1       cgd 			break;
    506      1.33     assar 		case 'S':
    507      1.33     assar 			numeric_addr = 1;
    508      1.33     assar 			break;
    509       1.1       cgd 		case 't':
    510       1.1       cgd 			tflag = 1;
    511       1.1       cgd 			break;
    512      1.75    kefren 		case 'T':
    513      1.75    kefren 			tagflag = 1;
    514      1.75    kefren 			break;
    515       1.1       cgd 		case 'u':
    516      1.17     lukem 			af = AF_LOCAL;
    517       1.1       cgd 			break;
    518      1.78    dyoung 		case 'V':
    519      1.78    dyoung 			Vflag++;
    520      1.78    dyoung 			break;
    521      1.19       kml 		case 'v':
    522      1.40      matt 			vflag++;
    523      1.19       kml 			break;
    524       1.1       cgd 		case 'w':
    525       1.1       cgd 			interval = atoi(optarg);
    526       1.6   mycroft 			iflag = 1;
    527       1.1       cgd 			break;
    528      1.72      elad 		case 'X':
    529      1.72      elad 			force_sysctl = 1;
    530      1.72      elad 			break;
    531       1.1       cgd 		case '?':
    532       1.1       cgd 		default:
    533       1.1       cgd 			usage();
    534       1.1       cgd 		}
    535       1.1       cgd 	argv += optind;
    536       1.1       cgd 	argc -= optind;
    537       1.1       cgd 
    538       1.1       cgd #define	BACKWARD_COMPATIBILITY
    539       1.1       cgd #ifdef	BACKWARD_COMPATIBILITY
    540       1.1       cgd 	if (*argv) {
    541      1.48       dsl 		if (isdigit((unsigned char)**argv)) {
    542       1.1       cgd 			interval = atoi(*argv);
    543       1.1       cgd 			if (interval <= 0)
    544       1.1       cgd 				usage();
    545       1.1       cgd 			++argv;
    546       1.1       cgd 			iflag = 1;
    547       1.1       cgd 		}
    548       1.1       cgd 		if (*argv) {
    549       1.6   mycroft 			nlistf = *argv;
    550       1.6   mycroft 			if (*++argv)
    551       1.6   mycroft 				memf = *argv;
    552       1.1       cgd 		}
    553       1.1       cgd 	}
    554       1.1       cgd #endif
    555       1.6   mycroft 
    556      1.64   mlelstv 	prepare(nlistf, memf, tp);
    557      1.15       mrg 
    558      1.51  drochner #ifndef SMALL
    559      1.49    rpaulo 	if (Bflag) {
    560      1.49    rpaulo 		if (sflag)
    561      1.49    rpaulo 			bpf_stats();
    562      1.49    rpaulo 		else
    563      1.50    rpaulo 			bpf_dump(interface);
    564      1.49    rpaulo 		exit(0);
    565      1.49    rpaulo 	}
    566      1.51  drochner #endif
    567      1.49    rpaulo 
    568       1.1       cgd 	if (mflag) {
    569      1.10  jonathan 		mbpr(nl[N_MBSTAT].n_value,  nl[N_MSIZE].n_value,
    570      1.21  sommerfe 		    nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value,
    571      1.21  sommerfe 		    nl[N_MCLPOOL].n_value);
    572       1.1       cgd 		exit(0);
    573       1.1       cgd 	}
    574      1.14   thorpej 	if (Pflag) {
    575      1.14   thorpej 		if (tp == NULL) {
    576      1.14   thorpej 			/* Default to TCP. */
    577      1.14   thorpej 			tp = name2protox("tcp");
    578      1.14   thorpej 		}
    579      1.14   thorpej 		if (tp->pr_dump)
    580  1.83.2.2       tls 			(*tp->pr_dump)(nl[tp->pr_index].n_value, tp->pr_name,
    581  1.83.2.2       tls 			    pcbaddr);
    582      1.14   thorpej 		else
    583      1.14   thorpej 			printf("%s: no PCB dump routine\n", tp->pr_name);
    584      1.14   thorpej 		exit(0);
    585      1.14   thorpej 	}
    586       1.1       cgd 	if (pflag) {
    587      1.25    itojun 		if (iflag && tp->pr_istats)
    588      1.25    itojun 			intpr(interval, nl[N_IFNET].n_value, tp->pr_istats);
    589      1.25    itojun 		else if (tp->pr_stats)
    590       1.1       cgd 			(*tp->pr_stats)(nl[tp->pr_sindex].n_value,
    591       1.1       cgd 				tp->pr_name);
    592       1.1       cgd 		else
    593       1.1       cgd 			printf("%s: no stats routine\n", tp->pr_name);
    594       1.1       cgd 		exit(0);
    595       1.1       cgd 	}
    596      1.37     enami 	if (qflag) {
    597      1.37     enami 		print_softintrq();
    598      1.37     enami 		exit(0);
    599      1.37     enami 	}
    600       1.1       cgd 	/*
    601       1.1       cgd 	 * Keep file descriptors open to avoid overhead
    602       1.1       cgd 	 * of open/close on each call to get* routines.
    603       1.1       cgd 	 */
    604       1.1       cgd 	sethostent(1);
    605       1.1       cgd 	setnetent(1);
    606       1.1       cgd 	if (iflag) {
    607      1.25    itojun 		if (af != AF_UNSPEC)
    608      1.25    itojun 			goto protostat;
    609      1.25    itojun 
    610      1.25    itojun 		intpr(interval, nl[N_IFNET].n_value, NULL);
    611       1.1       cgd 		exit(0);
    612       1.1       cgd 	}
    613       1.1       cgd 	if (rflag) {
    614       1.1       cgd 		if (sflag)
    615      1.53      elad 			rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value);
    616      1.53      elad 		else {
    617  1.83.2.1       tls 			if (!use_sysctl)
    618  1.83.2.1       tls 				err(1, "-r is not supported "
    619  1.83.2.1       tls 				    "for post-mortem analysis.");
    620  1.83.2.1       tls 			p_rttables(af);
    621      1.53      elad 		}
    622       1.1       cgd 		exit(0);
    623       1.1       cgd 	}
    624      1.18       mrg #ifndef SMALL
    625       1.6   mycroft 	if (gflag) {
    626      1.23    itojun 		if (sflag) {
    627      1.23    itojun 			if (af == AF_INET || af == AF_UNSPEC)
    628      1.23    itojun 				mrt_stats(nl[N_MRTPROTO].n_value,
    629      1.23    itojun 					  nl[N_MRTSTAT].n_value);
    630      1.23    itojun #ifdef INET6
    631      1.23    itojun 			if (af == AF_INET6 || af == AF_UNSPEC)
    632      1.23    itojun 				mrt6_stats(nl[N_MRT6PROTO].n_value,
    633      1.23    itojun 					   nl[N_MRT6STAT].n_value);
    634      1.23    itojun #endif
    635      1.23    itojun 		}
    636      1.23    itojun 		else {
    637      1.23    itojun 			if (af == AF_INET || af == AF_UNSPEC)
    638      1.23    itojun 				mroutepr(nl[N_MRTPROTO].n_value,
    639      1.23    itojun 					 nl[N_MFCHASHTBL].n_value,
    640      1.23    itojun 					 nl[N_MFCHASH].n_value,
    641      1.23    itojun 					 nl[N_VIFTABLE].n_value);
    642      1.23    itojun #ifdef INET6
    643      1.23    itojun 			if (af == AF_INET6 || af == AF_UNSPEC)
    644      1.23    itojun 				mroute6pr(nl[N_MRT6PROTO].n_value,
    645      1.23    itojun 					  nl[N_MF6CTABLE].n_value,
    646      1.23    itojun 					  nl[N_MIF6TABLE].n_value);
    647      1.23    itojun #endif
    648      1.23    itojun 		}
    649       1.4    brezak 		exit(0);
    650       1.4    brezak 	}
    651      1.18       mrg #endif
    652      1.25    itojun   protostat:
    653       1.6   mycroft 	if (af == AF_INET || af == AF_UNSPEC) {
    654       1.6   mycroft 		setprotoent(1);
    655       1.6   mycroft 		setservent(1);
    656       1.6   mycroft 		/* ugh, this is O(MN) ... why do we do this? */
    657      1.11  christos 		while ((p = getprotoent()) != NULL) {
    658       1.6   mycroft 			for (tp = protox; tp->pr_name; tp++)
    659       1.6   mycroft 				if (strcmp(tp->pr_name, p->p_name) == 0)
    660       1.6   mycroft 					break;
    661       1.6   mycroft 			if (tp->pr_name == 0 || tp->pr_wanted == 0)
    662       1.6   mycroft 				continue;
    663       1.6   mycroft 			printproto(tp, p->p_name);
    664      1.23    itojun 			tp->pr_wanted = 0;
    665       1.6   mycroft 		}
    666       1.6   mycroft 		endprotoent();
    667      1.23    itojun 		for (tp = protox; tp->pr_name; tp++)
    668      1.23    itojun 			if (tp->pr_wanted)
    669      1.23    itojun 				printproto(tp, tp->pr_name);
    670       1.6   mycroft 	}
    671      1.23    itojun #ifdef INET6
    672      1.23    itojun 	if (af == AF_INET6 || af == AF_UNSPEC)
    673      1.23    itojun 		for (tp = ip6protox; tp->pr_name; tp++)
    674      1.26    itojun 			printproto(tp, tp->pr_name);
    675      1.26    itojun #endif
    676      1.29     jhawk 	if (af == AF_ARP || af == AF_UNSPEC)
    677      1.29     jhawk 		for (tp = arpprotox; tp->pr_name; tp++)
    678      1.29     jhawk 			printproto(tp, tp->pr_name);
    679      1.26    itojun #ifdef IPSEC
    680      1.26    itojun 	if (af == PF_KEY || af == AF_UNSPEC)
    681      1.26    itojun 		for (tp = pfkeyprotox; tp->pr_name; tp++)
    682      1.23    itojun 			printproto(tp, tp->pr_name);
    683      1.23    itojun #endif
    684      1.18       mrg #ifndef SMALL
    685      1.11  christos 	if (af == AF_APPLETALK || af == AF_UNSPEC)
    686      1.11  christos 		for (tp = atalkprotox; tp->pr_name; tp++)
    687      1.11  christos 			printproto(tp, tp->pr_name);
    688      1.17     lukem 	if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag)
    689       1.6   mycroft 		unixpr(nl[N_UNIXSW].n_value);
    690      1.18       mrg #endif
    691       1.6   mycroft 	exit(0);
    692       1.6   mycroft }
    693       1.4    brezak 
    694       1.6   mycroft /*
    695       1.6   mycroft  * Print out protocol statistics or control blocks (per sflag).
    696       1.6   mycroft  * If the interface was not specifically requested, and the symbol
    697       1.6   mycroft  * is not in the namelist, ignore this one.
    698       1.6   mycroft  */
    699       1.6   mycroft static void
    700      1.82      matt printproto(struct protox *tp, const char *name)
    701       1.6   mycroft {
    702      1.71     lukem 	void (*pr) __P((u_long, const char *));
    703       1.6   mycroft 	u_long off;
    704       1.1       cgd 
    705       1.6   mycroft 	if (sflag) {
    706      1.25    itojun 		if (iflag) {
    707      1.25    itojun 			if (tp->pr_istats)
    708      1.25    itojun 				intpr(interval, nl[N_IFNET].n_value,
    709      1.25    itojun 				      tp->pr_istats);
    710      1.25    itojun 			return;
    711      1.25    itojun 		}
    712      1.25    itojun 		else {
    713      1.25    itojun 			pr = tp->pr_stats;
    714      1.25    itojun 			off = nl[tp->pr_sindex].n_value;
    715      1.25    itojun 		}
    716       1.6   mycroft 	} else {
    717       1.6   mycroft 		pr = tp->pr_cblocks;
    718       1.6   mycroft 		off = nl[tp->pr_index].n_value;
    719       1.1       cgd 	}
    720      1.53      elad 	if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) {
    721       1.6   mycroft 		(*pr)(off, name);
    722      1.53      elad 	}
    723       1.6   mycroft }
    724       1.6   mycroft 
    725       1.6   mycroft /*
    726      1.37     enami  * Print softintrq status.
    727      1.37     enami  */
    728      1.37     enami void
    729      1.82      matt print_softintrq(void)
    730      1.37     enami {
    731      1.37     enami 	struct ifqueue intrq, *ifq = &intrq;
    732      1.37     enami 	const struct softintrq *siq;
    733      1.37     enami 	u_long off;
    734      1.37     enami 
    735      1.37     enami 	for (siq = softintrq; siq->siq_name != NULL; siq++) {
    736      1.37     enami 		off = nl[siq->siq_index].n_value;
    737      1.37     enami 		if (off == 0)
    738      1.37     enami 			continue;
    739      1.37     enami 
    740      1.37     enami 		kread(off, (char *)ifq, sizeof(*ifq));
    741      1.37     enami 		printf("%s:\n", siq->siq_name);
    742      1.37     enami 		printf("\tqueue length: %d\n", ifq->ifq_len);
    743      1.37     enami 		printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen);
    744      1.37     enami 		printf("\tpackets dropped: %d\n", ifq->ifq_drops);
    745      1.37     enami 	}
    746      1.37     enami }
    747      1.37     enami 
    748      1.37     enami /*
    749       1.6   mycroft  * Read kernel memory, return 0 on success.
    750       1.6   mycroft  */
    751       1.6   mycroft int
    752      1.82      matt kread(u_long addr, char *buf, int size)
    753       1.6   mycroft {
    754       1.6   mycroft 
    755       1.6   mycroft 	if (kvm_read(kvmd, addr, buf, size) != size) {
    756      1.35    itojun 		warnx("%s", kvm_geterr(kvmd));
    757       1.6   mycroft 		return (-1);
    758       1.1       cgd 	}
    759       1.6   mycroft 	return (0);
    760       1.1       cgd }
    761       1.1       cgd 
    762      1.71     lukem const char *
    763      1.82      matt plural(int n)
    764       1.1       cgd {
    765      1.16       mrg 
    766       1.1       cgd 	return (n != 1 ? "s" : "");
    767       1.1       cgd }
    768       1.1       cgd 
    769      1.71     lukem const char *
    770      1.82      matt plurales(int n)
    771       1.6   mycroft {
    772      1.16       mrg 
    773       1.6   mycroft 	return (n != 1 ? "es" : "");
    774      1.39   thorpej }
    775      1.39   thorpej 
    776      1.39   thorpej int
    777      1.39   thorpej get_hardticks(void)
    778      1.39   thorpej {
    779      1.39   thorpej 	int hardticks;
    780      1.39   thorpej 
    781      1.39   thorpej 	kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks,
    782      1.39   thorpej 	    sizeof(hardticks));
    783      1.39   thorpej 	return (hardticks);
    784       1.6   mycroft }
    785       1.6   mycroft 
    786       1.1       cgd /*
    787       1.1       cgd  * Find the protox for the given "well-known" name.
    788       1.1       cgd  */
    789       1.6   mycroft static struct protox *
    790      1.82      matt knownname(const char *name)
    791       1.1       cgd {
    792       1.1       cgd 	struct protox **tpp, *tp;
    793       1.1       cgd 
    794       1.1       cgd 	for (tpp = protoprotox; *tpp; tpp++)
    795       1.6   mycroft 		for (tp = *tpp; tp->pr_name; tp++)
    796       1.6   mycroft 			if (strcmp(tp->pr_name, name) == 0)
    797       1.6   mycroft 				return (tp);
    798       1.6   mycroft 	return (NULL);
    799       1.1       cgd }
    800       1.1       cgd 
    801       1.1       cgd /*
    802       1.1       cgd  * Find the protox corresponding to name.
    803       1.1       cgd  */
    804       1.6   mycroft static struct protox *
    805      1.82      matt name2protox(const char *name)
    806       1.1       cgd {
    807       1.1       cgd 	struct protox *tp;
    808       1.1       cgd 	char **alias;			/* alias from p->aliases */
    809       1.1       cgd 	struct protoent *p;
    810       1.1       cgd 
    811       1.1       cgd 	/*
    812       1.1       cgd 	 * Try to find the name in the list of "well-known" names. If that
    813       1.1       cgd 	 * fails, check if name is an alias for an Internet protocol.
    814       1.1       cgd 	 */
    815      1.11  christos 	if ((tp = knownname(name)) != NULL)
    816       1.6   mycroft 		return (tp);
    817       1.1       cgd 
    818       1.1       cgd 	setprotoent(1);			/* make protocol lookup cheaper */
    819      1.11  christos 	while ((p = getprotoent()) != NULL) {
    820       1.1       cgd 		/* assert: name not same as p->name */
    821       1.1       cgd 		for (alias = p->p_aliases; *alias; alias++)
    822       1.1       cgd 			if (strcmp(name, *alias) == 0) {
    823       1.1       cgd 				endprotoent();
    824       1.6   mycroft 				return (knownname(p->p_name));
    825       1.1       cgd 			}
    826       1.1       cgd 	}
    827       1.1       cgd 	endprotoent();
    828       1.6   mycroft 	return (NULL);
    829       1.1       cgd }
    830       1.1       cgd 
    831       1.6   mycroft static void
    832      1.82      matt usage(void)
    833       1.1       cgd {
    834      1.32       cgd 	const char *progname = getprogname();
    835      1.32       cgd 
    836       1.1       cgd 	(void)fprintf(stderr,
    837      1.32       cgd "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname);
    838       1.1       cgd 	(void)fprintf(stderr,
    839      1.37     enami "       %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n",
    840      1.32       cgd 	progname);
    841       1.1       cgd 	(void)fprintf(stderr,
    842      1.36     soren "       %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname);
    843       1.1       cgd 	(void)fprintf(stderr,
    844      1.36     soren "       %s [-p protocol] [-M core] [-N system]\n", progname);
    845      1.14   thorpej 	(void)fprintf(stderr,
    846      1.36     soren "       %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname);
    847      1.36     soren 	(void)fprintf(stderr,
    848      1.36     soren "       %s [-p protocol] [-i] [-I Interface] \n", progname);
    849      1.36     soren 	(void)fprintf(stderr,
    850      1.36     soren "       %s [-s] [-f address_family] [-i] [-I Interface]\n", progname);
    851      1.49    rpaulo 	(void)fprintf(stderr,
    852      1.49    rpaulo "       %s [-s] [-B] [-I interface]\n", progname);
    853       1.1       cgd 	exit(1);
    854       1.1       cgd }
    855