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main.c @ 6da9b23

4.1155-freebsd-126-freebsd-12freebsd-9.3

Last change on this file since 6da9b23 was 6da9b23, checked in by Sebastian Huber <sebastian.huber@…>, on 10/30/13 at 14:42:53

NETSTAT(1): Initialize global variables

Use BSD program lock.

Property mode set to 100644

File size: 21.2 KB

Line
1	/*-
2	* Copyright (c) 1983, 1988, 1993
3	* Regents of the University of California. All rights reserved.
4	*
5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions
7	* are met:
8	* 1. Redistributions of source code must retain the above copyright
9	* notice, this list of conditions and the following disclaimer.
10	* 2. Redistributions in binary form must reproduce the above copyright
11	* notice, this list of conditions and the following disclaimer in the
12	* documentation and/or other materials provided with the distribution.
13	* 3. All advertising materials mentioning features or use of this software
14	* must display the following acknowledgement:
15	* This product includes software developed by the University of
16	* California, Berkeley and its contributors.
17	* 4. Neither the name of the University nor the names of its contributors
18	* may be used to endorse or promote products derived from this software
19	* without specific prior written permission.
20	*
21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31	* SUCH DAMAGE.
32	*/
33
34	#ifndef lint
35	char const copyright[] =
36	"@(#) Copyright (c) 1983, 1988, 1993\n\
37	Regents of the University of California. All rights reserved.\n";
38	#endif /* not lint */
39
40	#if 0
41	#ifndef lint
42	static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 3/1/94";
43	#endif /* not lint */
44	#endif
45
46	#ifdef __rtems__
47	#define __need_getopt_newlib
48	#include <getopt.h>
49	#include <machine/rtems-bsd-program.h>
50	#include <machine/rtems-bsd-commands.h>
51	#endif /* __rtems__ */
52	#include <sys/cdefs.h>
53	__FBSDID("$FreeBSD$");
54
55	#include <rtems/bsd/sys/param.h>
56	#include <sys/file.h>
57	#include <sys/protosw.h>
58	#include <sys/socket.h>
59	#include <sys/socketvar.h>
60
61	#include <netinet/in.h>
62
63	#ifdef NETGRAPH
64	#include <netgraph/ng_socket.h>
65	#endif
66
67	#include <ctype.h>
68	#include <err.h>
69	#include <errno.h>
70	#include <kvm.h>
71	#include <limits.h>
72	#include <netdb.h>
73	#include <nlist.h>
74	#include <paths.h>
75	#include <stdint.h>
76	#include <stdio.h>
77	#include <stdlib.h>
78	#include <string.h>
79	#include <unistd.h>
80	#include "netstat.h"
81
82	static struct nlist nl[] = {
83	#define N_IFNET 0
84	{ .n_name = "_ifnet" },
85	#define N_RTSTAT 1
86	{ .n_name = "_rtstat" },
87	#define N_RTREE 2
88	{ .n_name = "_rt_tables"},
89	#define N_MRTSTAT 3
90	{ .n_name = "_mrtstat" },
91	#define N_MFCHASHTBL 4
92	{ .n_name = "_mfchashtbl" },
93	#define N_VIFTABLE 5
94	{ .n_name = "_viftable" },
95	#define N_IPX 6
96	{ .n_name = "_ipxpcb_list"},
97	#define N_IPXSTAT 7
98	{ .n_name = "_ipxstat"},
99	#define N_SPXSTAT 8
100	{ .n_name = "_spx_istat"},
101	#define N_DDPSTAT 9
102	{ .n_name = "_ddpstat"},
103	#define N_DDPCB 10
104	{ .n_name = "_ddpcb"},
105	#define N_NGSOCKS 11
106	{ .n_name = "_ngsocklist"},
107	#define N_IP6STAT 12
108	{ .n_name = "_ip6stat" },
109	#define N_ICMP6STAT 13
110	{ .n_name = "_icmp6stat" },
111	#define N_IPSECSTAT 14
112	{ .n_name = "_ipsec4stat" },
113	#define N_IPSEC6STAT 15
114	{ .n_name = "_ipsec6stat" },
115	#define N_PIM6STAT 16
116	{ .n_name = "_pim6stat" },
117	#define N_MRT6STAT 17
118	{ .n_name = "_mrt6stat" },
119	#define N_MF6CTABLE 18
120	{ .n_name = "_mf6ctable" },
121	#define N_MIF6TABLE 19
122	{ .n_name = "_mif6table" },
123	#define N_PFKEYSTAT 20
124	{ .n_name = "_pfkeystat" },
125	#define N_MBSTAT 21
126	{ .n_name = "_mbstat" },
127	#define N_MBTYPES 22
128	{ .n_name = "_mbtypes" },
129	#define N_NMBCLUSTERS 23
130	{ .n_name = "_nmbclusters" },
131	#define N_NMBUFS 24
132	{ .n_name = "_nmbufs" },
133	#define N_MBHI 25
134	{ .n_name = "_mbuf_hiwm" },
135	#define N_CLHI 26
136	{ .n_name = "_clust_hiwm" },
137	#define N_NCPUS 27
138	{ .n_name = "_smp_cpus" },
139	#define N_PAGESZ 28
140	{ .n_name = "_pagesize" },
141	#define N_MBPSTAT 29
142	{ .n_name = "_mb_statpcpu" },
143	#define N_RTTRASH 30
144	{ .n_name = "_rttrash" },
145	#define N_MBLO 31
146	{ .n_name = "_mbuf_lowm" },
147	#define N_CLLO 32
148	{ .n_name = "_clust_lowm" },
149	#define N_CARPSTAT 33
150	{ .n_name = "_carpstats" },
151	#define N_PFSYNCSTAT 34
152	{ .n_name = "_pfsyncstats" },
153	#define N_AHSTAT 35
154	{ .n_name = "_ahstat" },
155	#define N_ESPSTAT 36
156	{ .n_name = "_espstat" },
157	#define N_IPCOMPSTAT 37
158	{ .n_name = "_ipcompstat" },
159	#define N_TCPSTAT 38
160	{ .n_name = "_tcpstat" },
161	#define N_UDPSTAT 39
162	{ .n_name = "_udpstat" },
163	#define N_IPSTAT 40
164	{ .n_name = "_ipstat" },
165	#define N_ICMPSTAT 41
166	{ .n_name = "_icmpstat" },
167	#define N_IGMPSTAT 42
168	{ .n_name = "_igmpstat" },
169	#define N_PIMSTAT 43
170	{ .n_name = "_pimstat" },
171	#define N_TCBINFO 44
172	{ .n_name = "_tcbinfo" },
173	#define N_UDBINFO 45
174	{ .n_name = "_udbinfo" },
175	#define N_DIVCBINFO 46
176	{ .n_name = "_divcbinfo" },
177	#define N_RIPCBINFO 47
178	{ .n_name = "_ripcbinfo" },
179	#define N_UNP_COUNT 48
180	{ .n_name = "_unp_count" },
181	#define N_UNP_GENCNT 49
182	{ .n_name = "_unp_gencnt" },
183	#define N_UNP_DHEAD 50
184	{ .n_name = "_unp_dhead" },
185	#define N_UNP_SHEAD 51
186	{ .n_name = "_unp_shead" },
187	#define N_RIP6STAT 52
188	{ .n_name = "_rip6stat" },
189	#define N_SCTPSTAT 53
190	{ .n_name = "_sctpstat" },
191	#define N_MFCTABLESIZE 54
192	{ .n_name = "_mfctablesize" },
193	#define N_ARPSTAT 55
194	{ .n_name = "_arpstat" },
195	{ .n_name = NULL },
196	};
197
198	struct protox {
199	int pr_index; /* index into nlist of cb head */
200	int pr_sindex; /* index into nlist of stat block */
201	u_char pr_wanted; /* 1 if wanted, 0 otherwise */
202	void (pr_cblocks)(u_long, const char , int, int);
203	/* control blocks printing routine */
204	void (pr_stats)(u_long, const char , int, int);
205	/* statistics printing routine */
206	void (pr_istats)(char ); /* per/if statistics printing routine */
207	const char pr_name; / well-known name */
208	int pr_usesysctl; /* non-zero if we use sysctl, not kvm */
209	int pr_protocol;
210	} static const protox[] = {
211	{ N_TCBINFO, N_TCPSTAT, 1, protopr,
212	tcp_stats, NULL, "tcp", 1, IPPROTO_TCP },
213	{ N_UDBINFO, N_UDPSTAT, 1, protopr,
214	udp_stats, NULL, "udp", 1, IPPROTO_UDP },
215	#ifdef SCTP
216	{ -1, N_SCTPSTAT, 1, sctp_protopr,
217	sctp_stats, NULL, "sctp", 1, IPPROTO_SCTP },
218	#endif
219	{ N_DIVCBINFO, -1, 1, protopr,
220	NULL, NULL, "divert", 1, IPPROTO_DIVERT },
221	{ N_RIPCBINFO, N_IPSTAT, 1, protopr,
222	ip_stats, NULL, "ip", 1, IPPROTO_RAW },
223	{ N_RIPCBINFO, N_ICMPSTAT, 1, protopr,
224	icmp_stats, NULL, "icmp", 1, IPPROTO_ICMP },
225	{ N_RIPCBINFO, N_IGMPSTAT, 1, protopr,
226	igmp_stats, NULL, "igmp", 1, IPPROTO_IGMP },
227	#ifdef IPSEC
228	{ -1, N_IPSECSTAT, 1, NULL, /* keep as compat */
229	ipsec_stats, NULL, "ipsec", 0, 0},
230	{ -1, N_AHSTAT, 1, NULL,
231	ah_stats, NULL, "ah", 0, 0},
232	{ -1, N_ESPSTAT, 1, NULL,
233	esp_stats, NULL, "esp", 0, 0},
234	{ -1, N_IPCOMPSTAT, 1, NULL,
235	ipcomp_stats, NULL, "ipcomp", 0, 0},
236	#endif
237	{ N_RIPCBINFO, N_PIMSTAT, 1, protopr,
238	pim_stats, NULL, "pim", 1, IPPROTO_PIM },
239	{ -1, N_CARPSTAT, 1, NULL,
240	carp_stats, NULL, "carp", 1, 0 },
241	{ -1, N_PFSYNCSTAT, 1, NULL,
242	pfsync_stats, NULL, "pfsync", 1, 0 },
243	{ -1, N_ARPSTAT, 1, NULL,
244	arp_stats, NULL, "arp", 1, 0 },
245	{ -1, -1, 0, NULL,
246	NULL, NULL, NULL, 0, 0 }
247	};
248
249	#ifdef INET6
250	static const struct protox ip6protox[] = {
251	{ N_TCBINFO, N_TCPSTAT, 1, protopr,
252	tcp_stats, NULL, "tcp", 1, IPPROTO_TCP },
253	{ N_UDBINFO, N_UDPSTAT, 1, protopr,
254	udp_stats, NULL, "udp", 1, IPPROTO_UDP },
255	{ N_RIPCBINFO, N_IP6STAT, 1, protopr,
256	ip6_stats, ip6_ifstats, "ip6", 1, IPPROTO_RAW },
257	{ N_RIPCBINFO, N_ICMP6STAT, 1, protopr,
258	icmp6_stats, icmp6_ifstats, "icmp6", 1, IPPROTO_ICMPV6 },
259	#ifdef IPSEC
260	{ -1, N_IPSEC6STAT, 1, NULL,
261	ipsec_stats, NULL, "ipsec6", 0, 0 },
262	#endif
263	#ifdef notyet
264	{ -1, N_PIM6STAT, 1, NULL,
265	pim6_stats, NULL, "pim6", 1, 0 },
266	#endif
267	{ -1, N_RIP6STAT, 1, NULL,
268	rip6_stats, NULL, "rip6", 1, 0 },
269	{ -1, -1, 0, NULL,
270	NULL, NULL, NULL, 0, 0 }
271	};
272	#endif /INET6/
273
274	#ifdef IPSEC
275	static const struct protox pfkeyprotox[] = {
276	{ -1, N_PFKEYSTAT, 1, NULL,
277	pfkey_stats, NULL, "pfkey", 0, 0 },
278	{ -1, -1, 0, NULL,
279	NULL, NULL, NULL, 0, 0 }
280	};
281	#endif
282
283	#ifndef __rtems__
284	static const struct protox atalkprotox[] = {
285	{ N_DDPCB, N_DDPSTAT, 1, atalkprotopr,
286	ddp_stats, NULL, "ddp", 0, 0 },
287	{ -1, -1, 0, NULL,
288	NULL, NULL, NULL, 0, 0 }
289	};
290	#endif
291	#ifdef NETGRAPH
292	static const struct protox netgraphprotox[] = {
293	{ N_NGSOCKS, -1, 1, netgraphprotopr,
294	NULL, NULL, "ctrl", 0, 0 },
295	{ N_NGSOCKS, -1, 1, netgraphprotopr,
296	NULL, NULL, "data", 0, 0 },
297	{ -1, -1, 0, NULL,
298	NULL, NULL, NULL, 0, 0 }
299	};
300	#endif
301	#ifdef IPX
302	static const struct protox ipxprotox[] = {
303	{ N_IPX, N_IPXSTAT, 1, ipxprotopr,
304	ipx_stats, NULL, "ipx", 0, 0 },
305	{ N_IPX, N_SPXSTAT, 1, ipxprotopr,
306	spx_stats, NULL, "spx", 0, 0 },
307	{ -1, -1, 0, NULL,
308	NULL, NULL, 0, 0, 0 }
309	};
310	#endif
311
312	static const struct protox *protoprotox[] = {
313	protox,
314	#ifdef INET6
315	ip6protox,
316	#endif
317	#ifdef IPSEC
318	pfkeyprotox,
319	#endif
320	#ifdef IPX
321	ipxprotox,
322	#endif
323	#ifndef __rtems__
324	atalkprotox, NULL };
325	#else
326	NULL };
327	#endif
328
329	static void printproto(const struct protox , const char );
330	static void usage(void);
331	static const struct protox name2protox(const char );
332	static const struct protox knownname(const char );
333
334	static kvm_t *kvmd;
335	static char nlistf = NULL, memf = NULL;
336
337	int Aflag; /* show addresses of protocol control block */
338	int aflag; /* show all sockets (including servers) */
339	int Bflag; /* show information about bpf consumers */
340	int bflag; /* show i/f total bytes in/out */
341	int dflag; /* show i/f dropped packets */
342	int gflag; /* show group (multicast) routing or stats */
343	int hflag; /* show counters in human readable format */
344	int iflag; /* show interfaces */
345	int Lflag; /* show size of listen queues */
346	int mflag; /* show memory stats */
347	int noutputs = 0; /* how much outputs before we exit */
348	int numeric_addr; /* show addresses numerically */
349	int numeric_port; /* show ports numerically */
350	static int pflag; /* show given protocol */
351	int rflag; /* show routing tables (or routing stats) */
352	int sflag; /* show protocol statistics */
353	int tflag; /* show i/f watchdog timers */
354	int Wflag; /* wide display */
355	int xflag; /* extra information, includes all socket buffer info */
356	int zflag; /* zero stats */
357
358	int interval; /* repeat interval for i/f stats */
359
360	char interface; / desired i/f for stats, or NULL for all i/fs */
361	int unit; /* unit number for above */
362
363	int af; /* address family */
364	int live; /* true if we are examining a live system */
365
366	#ifdef __rtems__
367	int protopr_initialized;
368	int do_rtent;
369	struct radix_node_head **rt_tables;
370
371	static int main(int argc, char *argv[]);
372
373	int rtems_bsd_command_netstat(int argc, char *argv[])
374	{
375	int exit_code;
376
377	rtems_bsd_program_lock();
378
379	Aflag = 0;
380	aflag = 0;
381	bflag = 0;
382	dflag = 0;
383	gflag = 0;
384	hflag = 0;
385	iflag = 0;
386	Lflag = 0;
387	mflag = 0;
388	noutputs = 0;
389	numeric_addr = 0;
390	numeric_port = 0;
391	pflag = 0;
392	rflag = 0;
393	sflag = 0;
394	tflag = 0;
395	Wflag = 0;
396	xflag = 0;
397	zflag = 0;
398	interval = 0;
399	interface = 0;
400	unit = 0;
401	af = 0;
402	live = 0;
403
404	protopr_initialized = 0;
405	do_rtent = 0;
406
407	exit_code = rtems_bsd_program_call_main("netstat", main, argc, argv);
408
409	free(rt_tables);
410	rt_tables = NULL;
411
412	rtems_bsd_program_unlock();
413
414	return exit_code;
415	}
416	#endif /* __rtems__ */
417	int
418	main(int argc, char *argv[])
419	{
420	const struct protox tp = NULL; / for printing cblocks & stats */
421	int ch;
422	#ifdef __rtems__
423	struct getopt_data getopt_data;
424	memset(&getopt_data, 0, sizeof(getopt_data));
425	#define optind getopt_data.optind
426	#define optarg getopt_data.optarg
427	#define opterr getopt_data.opterr
428	#define optopt getopt_data.optopt
429	#define getopt(argc, argv, opt) getopt_r(argc, argv, opt, &getopt_data)
430	#endif /* __rtems__ */
431
432	af = AF_UNSPEC;
433
434	while ((ch = getopt(argc, argv, "AaBbdf:ghI:iLlM:mN:np:q:rSstuWw:xz")) != -1)
435	switch(ch) {
436	case 'A':
437	Aflag = 1;
438	break;
439	case 'a':
440	aflag = 1;
441	break;
442	case 'B':
443	Bflag = 1;
444	break;
445	case 'b':
446	bflag = 1;
447	break;
448	case 'd':
449	dflag = 1;
450	break;
451	case 'f':
452	if (strcmp(optarg, "ipx") == 0)
453	af = AF_IPX;
454	else if (strcmp(optarg, "inet") == 0)
455	af = AF_INET;
456	#ifdef INET6
457	else if (strcmp(optarg, "inet6") == 0)
458	af = AF_INET6;
459	#endif
460	#ifdef IPSEC
461	else if (strcmp(optarg, "pfkey") == 0)
462	af = PF_KEY;
463	#endif
464	else if (strcmp(optarg, "unix") == 0)
465	af = AF_UNIX;
466	else if (strcmp(optarg, "atalk") == 0)
467	af = AF_APPLETALK;
468	#ifdef NETGRAPH
469	else if (strcmp(optarg, "ng") == 0
470	\|\| strcmp(optarg, "netgraph") == 0)
471	af = AF_NETGRAPH;
472	#endif
473	else if (strcmp(optarg, "link") == 0)
474	af = AF_LINK;
475	else {
476	errx(1, "%s: unknown address family", optarg);
477	}
478	break;
479	case 'g':
480	gflag = 1;
481	break;
482	case 'h':
483	hflag = 1;
484	break;
485	case 'I': {
486	char *cp;
487
488	iflag = 1;
489	for (cp = interface = optarg; isalpha((unsigned char) *cp); cp++)
490	continue;
491	unit = atoi(cp);
492	break;
493	}
494	case 'i':
495	iflag = 1;
496	break;
497	case 'L':
498	Lflag = 1;
499	break;
500	case 'M':
501	memf = optarg;
502	break;
503	case 'm':
504	mflag = 1;
505	break;
506	case 'N':
507	nlistf = optarg;
508	break;
509	case 'n':
510	numeric_addr = numeric_port = 1;
511	break;
512	case 'p':
513	if ((tp = name2protox(optarg)) == NULL) {
514	errx(1,
515	"%s: unknown or uninstrumented protocol",
516	optarg);
517	}
518	pflag = 1;
519	break;
520	case 'q':
521	noutputs = atoi(optarg);
522	if (noutputs != 0)
523	noutputs++;
524	break;
525	case 'r':
526	rflag = 1;
527	break;
528	case 's':
529	++sflag;
530	break;
531	case 'S':
532	numeric_addr = 1;
533	break;
534	case 't':
535	tflag = 1;
536	break;
537	case 'u':
538	af = AF_UNIX;
539	break;
540	case 'W':
541	case 'l':
542	Wflag = 1;
543	break;
544	case 'w':
545	interval = atoi(optarg);
546	iflag = 1;
547	break;
548	case 'x':
549	xflag = 1;
550	break;
551	case 'z':
552	zflag = 1;
553	break;
554	case '?':
555	default:
556	usage();
557	}
558	argv += optind;
559	argc -= optind;
560
561	#define BACKWARD_COMPATIBILITY
562	#ifdef BACKWARD_COMPATIBILITY
563	if (*argv) {
564	if (isdigit((unsigned char) **argv)) {
565	interval = atoi(*argv);
566	if (interval <= 0)
567	usage();
568	++argv;
569	iflag = 1;
570	}
571	if (*argv) {
572	nlistf = *argv;
573	if (*++argv)
574	memf = *argv;
575	}
576	}
577	#endif
578
579	/*
580	* Discard setgid privileges if not the running kernel so that bad
581	* guys can't print interesting stuff from kernel memory.
582	*/
583	live = (nlistf == NULL && memf == NULL);
584	if (!live)
585	setgid(getgid());
586
587	if (Bflag) {
588	if (!live)
589	usage();
590	bpf_stats(interface);
591	exit(0);
592	}
593	if (mflag) {
594	if (!live) {
595	if (kread(0, NULL, 0) == 0)
596	mbpr(kvmd, nl[N_MBSTAT].n_value);
597	} else
598	mbpr(NULL, 0);
599	exit(0);
600	}
601	#if 0
602	/*
603	* Keep file descriptors open to avoid overhead
604	* of open/close on each call to get* routines.
605	*/
606	sethostent(1);
607	setnetent(1);
608	#else
609	/*
610	* This does not make sense any more with DNS being default over
611	* the files. Doing a setXXXXent(1) causes a tcp connection to be
612	* used for the queries, which is slower.
613	*/
614	#endif
615	kread(0, NULL, 0);
616	if (iflag && !sflag) {
617	intpr(interval, nl[N_IFNET].n_value, NULL);
618	exit(0);
619	}
620	if (rflag) {
621	if (sflag)
622	rt_stats(nl[N_RTSTAT].n_value, nl[N_RTTRASH].n_value);
623	else
624	routepr(nl[N_RTREE].n_value);
625	exit(0);
626	}
627	if (gflag) {
628	if (sflag) {
629	if (af == AF_INET \|\| af == AF_UNSPEC)
630	mrt_stats(nl[N_MRTSTAT].n_value);
631	#ifdef INET6
632	if (af == AF_INET6 \|\| af == AF_UNSPEC)
633	mrt6_stats(nl[N_MRT6STAT].n_value);
634	#endif
635	} else {
636	if (af == AF_INET \|\| af == AF_UNSPEC)
637	mroutepr(nl[N_MFCHASHTBL].n_value,
638	nl[N_MFCTABLESIZE].n_value,
639	nl[N_VIFTABLE].n_value);
640	#ifdef INET6
641	if (af == AF_INET6 \|\| af == AF_UNSPEC)
642	mroute6pr(nl[N_MF6CTABLE].n_value,
643	nl[N_MIF6TABLE].n_value);
644	#endif
645	}
646	exit(0);
647	}
648
649	if (tp) {
650	printproto(tp, tp->pr_name);
651	exit(0);
652	}
653	if (af == AF_INET \|\| af == AF_UNSPEC)
654	for (tp = protox; tp->pr_name; tp++)
655	printproto(tp, tp->pr_name);
656	#ifdef INET6
657	if (af == AF_INET6 \|\| af == AF_UNSPEC)
658	for (tp = ip6protox; tp->pr_name; tp++)
659	printproto(tp, tp->pr_name);
660	#endif /INET6/
661	#ifdef IPSEC
662	if (af == PF_KEY \|\| af == AF_UNSPEC)
663	for (tp = pfkeyprotox; tp->pr_name; tp++)
664	printproto(tp, tp->pr_name);
665	#endif /IPSEC/
666	#ifdef IPX
667	if (af == AF_IPX \|\| af == AF_UNSPEC) {
668	for (tp = ipxprotox; tp->pr_name; tp++)
669	printproto(tp, tp->pr_name);
670	}
671	#endif /* IPX */
672	#ifndef __rtems__
673	if (af == AF_APPLETALK \|\| af == AF_UNSPEC)
674	for (tp = atalkprotox; tp->pr_name; tp++)
675	printproto(tp, tp->pr_name);
676	#endif
677	#ifdef NETGRAPH
678	if (af == AF_NETGRAPH \|\| af == AF_UNSPEC)
679	for (tp = netgraphprotox; tp->pr_name; tp++)
680	printproto(tp, tp->pr_name);
681	#endif /* NETGRAPH */
682	#ifndef __rtems__
683	if ((af == AF_UNIX \|\| af == AF_UNSPEC) && !sflag)
684	unixpr(nl[N_UNP_COUNT].n_value, nl[N_UNP_GENCNT].n_value,
685	nl[N_UNP_DHEAD].n_value, nl[N_UNP_SHEAD].n_value);
686	#endif
687	exit(0);
688	}
689
690	/*
691	* Print out protocol statistics or control blocks (per sflag).
692	* If the interface was not specifically requested, and the symbol
693	* is not in the namelist, ignore this one.
694	*/
695	static void
696	printproto(tp, name)
697	const struct protox *tp;
698	const char *name;
699	{
700	void (pr)(u_long, const char , int, int);
701	u_long off;
702
703	if (sflag) {
704	if (iflag) {
705	if (tp->pr_istats)
706	intpr(interval, nl[N_IFNET].n_value,
707	tp->pr_istats);
708	else if (pflag)
709	printf("%s: no per-interface stats routine\n",
710	tp->pr_name);
711	return;
712	} else {
713	pr = tp->pr_stats;
714	if (!pr) {
715	if (pflag)
716	printf("%s: no stats routine\n",
717	tp->pr_name);
718	return;
719	}
720	if (tp->pr_usesysctl && live)
721	off = 0;
722	else if (tp->pr_sindex < 0) {
723	if (pflag)
724	printf(
725	"%s: stats routine doesn't work on cores\n",
726	tp->pr_name);
727	return;
728	} else
729	off = nl[tp->pr_sindex].n_value;
730	}
731	} else {
732	pr = tp->pr_cblocks;
733	if (!pr) {
734	if (pflag)
735	printf("%s: no PCB routine\n", tp->pr_name);
736	return;
737	}
738	if (tp->pr_usesysctl && live)
739	off = 0;
740	else if (tp->pr_index < 0) {
741	if (pflag)
742	printf(
743	"%s: PCB routine doesn't work on cores\n",
744	tp->pr_name);
745	return;
746	} else
747	off = nl[tp->pr_index].n_value;
748	}
749	if (pr != NULL && (off \|\| (live && tp->pr_usesysctl) \|\|
750	af != AF_UNSPEC))
751	(*pr)(off, name, af, tp->pr_protocol);
752	}
753
754	#ifdef __rtems__
755	#define _POSIX2_LINE_MAX 128
756	#endif
757
758	/*
759	* Read kernel memory, return 0 on success.
760	*/
761	int
762	kread(u_long addr, void *buf, size_t size)
763	{
764	char errbuf[_POSIX2_LINE_MAX];
765	#ifdef __rtems__
766	/* printf( "kread( %p to %p for %d)\n", (void )addr, buf, size ); /
767	#endif
768
769	if (kvmd == NULL) {
770	kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
771	setgid(getgid());
772	if (kvmd != NULL) {
773	if (kvm_nlist(kvmd, nl) < 0) {
774	if (nlistf)
775	errx(1, "%s: kvm_nlist: %s", nlistf,
776	kvm_geterr(kvmd));
777	else
778	errx(1, "kvm_nlist: %s", kvm_geterr(kvmd));
779	}
780
781	if (nl[0].n_type == 0) {
782	if (nlistf)
783	errx(1, "%s: no namelist", nlistf);
784	else
785	errx(1, "no namelist");
786	}
787	} else {
788	warnx("kvm not available: %s", errbuf);
789	return(-1);
790	}
791	}
792	if (!buf)
793	return (0);
794	if (kvm_read(kvmd, addr, buf, size) != (ssize_t)size) {
795	warnx("%s", kvm_geterr(kvmd));
796	return (-1);
797	}
798	return (0);
799	}
800
801	const char *
802	plural(uintmax_t n)
803	{
804	return (n != 1 ? "s" : "");
805	}
806
807	const char *
808	plurales(uintmax_t n)
809	{
810	return (n != 1 ? "es" : "");
811	}
812
813	const char *
814	pluralies(uintmax_t n)
815	{
816	return (n != 1 ? "ies" : "y");
817	}
818
819	/*
820	* Find the protox for the given "well-known" name.
821	*/
822	static const struct protox *
823	knownname(const char *name)
824	{
825	const struct protox *tpp, tp;
826
827	for (tpp = protoprotox; *tpp; tpp++)
828	for (tp = *tpp; tp->pr_name; tp++)
829	if (strcmp(tp->pr_name, name) == 0)
830	return (tp);
831	return (NULL);
832	}
833
834	/*
835	* Find the protox corresponding to name.
836	*/
837	static const struct protox *
838	name2protox(const char *name)
839	{
840	const struct protox *tp;
841	char *alias; / alias from p->aliases */
842	struct protoent *p;
843
844	/*
845	* Try to find the name in the list of "well-known" names. If that
846	* fails, check if name is an alias for an Internet protocol.
847	*/
848	if ((tp = knownname(name)) != NULL)
849	return (tp);
850
851	setprotoent(1); /* make protocol lookup cheaper */
852	while ((p = getprotoent()) != NULL) {
853	/* assert: name not same as p->name */
854	for (alias = p->p_aliases; *alias; alias++)
855	if (strcmp(name, *alias) == 0) {
856	endprotoent();
857	return (knownname(p->p_name));
858	}
859	}
860	endprotoent();
861	return (NULL);
862	}
863
864	static void
865	usage(void)
866	{
867	(void)fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
868	"usage: netstat [-AaLnSWx] [-f protocol_family \| -p protocol]\n"
869	" [-M core] [-N system]",
870	" netstat -i \| -I interface [-abdhntW] [-f address_family]\n"
871	" [-M core] [-N system]",
872	" netstat -w wait [-I interface] [-d] [-M core] [-N system] [-q howmany]",
873	" netstat -s [-s] [-z] [-f protocol_family \| -p protocol]\n"
874	" [-M core] [-N system]",
875	" netstat -i \| -I interface -s [-f protocol_family \| -p protocol]\n"
876	" [-M core] [-N system]",
877	" netstat -m [-M core] [-N system]",
878	" netstat -B [-I interface]",
879	" netstat -r [-AanW] [-f address_family] [-M core] [-N system]",
880	" netstat -rs [-s] [-M core] [-N system]",
881	" netstat -g [-W] [-f address_family] [-M core] [-N system]",
882	" netstat -gs [-s] [-f address_family] [-M core] [-N system]");
883	exit(1);
884	}

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source: rtems-libbsd/freebsd/usr.bin/netstat/main.c @ 6da9b23

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