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main.c @ fef6dd1

4.11

Last change on this file since fef6dd1 was fef6dd1, checked in by Christian Mauderer <Christian.Mauderer@…>, on 07/15/16 at 05:32:56

freebsd: Don't use new wrappers for old ports.

Some of the commands have been adapted manually. So the wrapper
currently don't necessarily work as expected. For example ifconfig calls
malloc outside of the program call.

Property mode set to 100644

File size: 22.1 KB

Line
1	#include <machine/rtems-bsd-user-space.h>
2
3	/*-
4	* Copyright (c) 1983, 1988, 1993
5	* Regents of the University of California. All rights reserved.
6	*
7	* Redistribution and use in source and binary forms, with or without
8	* modification, are permitted provided that the following conditions
9	* are met:
10	* 1. Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.
12	* 2. Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.
15	* 4. Neither the name of the University nor the names of its contributors
16	* may be used to endorse or promote products derived from this software
17	* without specific prior written permission.
18	*
19	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29	* SUCH DAMAGE.
30	*/
31
32	#ifndef lint
33	char const copyright[] =
34	"@(#) Copyright (c) 1983, 1988, 1993\n\
35	Regents of the University of California. All rights reserved.\n";
36	#endif /* not lint */
37
38	#if 0
39	#ifndef lint
40	static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 3/1/94";
41	#endif /* not lint */
42	#endif
43
44	#ifdef __rtems__
45	#define __need_getopt_newlib
46	#include <getopt.h>
47	#define RTEMS_BSD_PROGRAM_NO_OPEN_WRAP
48	#define RTEMS_BSD_PROGRAM_NO_SOCKET_WRAP
49	#define RTEMS_BSD_PROGRAM_NO_CLOSE_WRAP
50	#define RTEMS_BSD_PROGRAM_NO_FOPEN_WRAP
51	#define RTEMS_BSD_PROGRAM_NO_FCLOSE_WRAP
52	#define RTEMS_BSD_PROGRAM_NO_MALLOC_WRAP
53	#define RTEMS_BSD_PROGRAM_NO_CALLOC_WRAP
54	#define RTEMS_BSD_PROGRAM_NO_REALLOC_WRAP
55	#define RTEMS_BSD_PROGRAM_NO_FREE_WRAP
56	#include <machine/rtems-bsd-program.h>
57	#include <machine/rtems-bsd-commands.h>
58	#endif /* __rtems__ */
59	#include <sys/cdefs.h>
60	__FBSDID("$FreeBSD$");
61
62	#include <rtems/bsd/sys/param.h>
63	#include <sys/file.h>
64	#include <sys/protosw.h>
65	#include <sys/socket.h>
66	#include <sys/socketvar.h>
67
68	#include <netinet/in.h>
69
70	#ifdef NETGRAPH
71	#include <netgraph/ng_socket.h>
72	#endif
73
74	#include <ctype.h>
75	#include <err.h>
76	#include <errno.h>
77	#include <kvm.h>
78	#include <limits.h>
79	#include <netdb.h>
80	#include <nlist.h>
81	#include <paths.h>
82	#include <stdint.h>
83	#include <stdio.h>
84	#include <stdlib.h>
85	#include <string.h>
86	#include <unistd.h>
87	#include "netstat.h"
88
89	static struct nlist nl[] = {
90	#define N_IFNET 0
91	{ .n_name = "_ifnet" },
92	#define N_RTSTAT 1
93	{ .n_name = "_rtstat" },
94	#define N_RTREE 2
95	{ .n_name = "_rt_tables"},
96	#define N_MRTSTAT 3
97	{ .n_name = "_mrtstat" },
98	#define N_MFCHASHTBL 4
99	{ .n_name = "_mfchashtbl" },
100	#define N_VIFTABLE 5
101	{ .n_name = "_viftable" },
102	#define N_IPX 6
103	{ .n_name = "_ipxpcb_list"},
104	#define N_IPXSTAT 7
105	{ .n_name = "_ipxstat"},
106	#define N_SPXSTAT 8
107	{ .n_name = "_spx_istat"},
108	#define N_DDPSTAT 9
109	{ .n_name = "_ddpstat"},
110	#define N_DDPCB 10
111	{ .n_name = "_ddpcb"},
112	#define N_NGSOCKS 11
113	{ .n_name = "_ngsocklist"},
114	#define N_IP6STAT 12
115	{ .n_name = "_ip6stat" },
116	#define N_ICMP6STAT 13
117	{ .n_name = "_icmp6stat" },
118	#define N_IPSECSTAT 14
119	{ .n_name = "_ipsec4stat" },
120	#define N_IPSEC6STAT 15
121	{ .n_name = "_ipsec6stat" },
122	#define N_PIM6STAT 16
123	{ .n_name = "_pim6stat" },
124	#define N_MRT6STAT 17
125	{ .n_name = "_mrt6stat" },
126	#define N_MF6CTABLE 18
127	{ .n_name = "_mf6ctable" },
128	#define N_MIF6TABLE 19
129	{ .n_name = "_mif6table" },
130	#define N_PFKEYSTAT 20
131	{ .n_name = "_pfkeystat" },
132	#define N_MBSTAT 21
133	{ .n_name = "_mbstat" },
134	#define N_MBTYPES 22
135	{ .n_name = "_mbtypes" },
136	#define N_NMBCLUSTERS 23
137	{ .n_name = "_nmbclusters" },
138	#define N_NMBUFS 24
139	{ .n_name = "_nmbufs" },
140	#define N_MBHI 25
141	{ .n_name = "_mbuf_hiwm" },
142	#define N_CLHI 26
143	{ .n_name = "_clust_hiwm" },
144	#define N_NCPUS 27
145	{ .n_name = "_smp_cpus" },
146	#define N_PAGESZ 28
147	{ .n_name = "_pagesize" },
148	#define N_MBPSTAT 29
149	{ .n_name = "_mb_statpcpu" },
150	#define N_RTTRASH 30
151	{ .n_name = "_rttrash" },
152	#define N_MBLO 31
153	{ .n_name = "_mbuf_lowm" },
154	#define N_CLLO 32
155	{ .n_name = "_clust_lowm" },
156	#define N_CARPSTAT 33
157	{ .n_name = "_carpstats" },
158	#define N_PFSYNCSTAT 34
159	{ .n_name = "_pfsyncstats" },
160	#define N_AHSTAT 35
161	{ .n_name = "_ahstat" },
162	#define N_ESPSTAT 36
163	{ .n_name = "_espstat" },
164	#define N_IPCOMPSTAT 37
165	{ .n_name = "_ipcompstat" },
166	#define N_TCPSTAT 38
167	{ .n_name = "_tcpstat" },
168	#define N_UDPSTAT 39
169	{ .n_name = "_udpstat" },
170	#define N_IPSTAT 40
171	{ .n_name = "_ipstat" },
172	#define N_ICMPSTAT 41
173	{ .n_name = "_icmpstat" },
174	#define N_IGMPSTAT 42
175	{ .n_name = "_igmpstat" },
176	#define N_PIMSTAT 43
177	{ .n_name = "_pimstat" },
178	#define N_TCBINFO 44
179	{ .n_name = "_tcbinfo" },
180	#define N_UDBINFO 45
181	{ .n_name = "_udbinfo" },
182	#define N_DIVCBINFO 46
183	{ .n_name = "_divcbinfo" },
184	#define N_RIPCBINFO 47
185	{ .n_name = "_ripcbinfo" },
186	#define N_UNP_COUNT 48
187	{ .n_name = "_unp_count" },
188	#define N_UNP_GENCNT 49
189	{ .n_name = "_unp_gencnt" },
190	#define N_UNP_DHEAD 50
191	{ .n_name = "_unp_dhead" },
192	#define N_UNP_SHEAD 51
193	{ .n_name = "_unp_shead" },
194	#define N_RIP6STAT 52
195	{ .n_name = "_rip6stat" },
196	#define N_SCTPSTAT 53
197	{ .n_name = "_sctpstat" },
198	#define N_MFCTABLESIZE 54
199	{ .n_name = "_mfctablesize" },
200	#define N_ARPSTAT 55
201	{ .n_name = "_arpstat" },
202	#define N_UNP_SPHEAD 56
203	{ .n_name = "unp_sphead" },
204	{ .n_name = NULL },
205	};
206
207	struct protox {
208	int pr_index; /* index into nlist of cb head */
209	int pr_sindex; /* index into nlist of stat block */
210	u_char pr_wanted; /* 1 if wanted, 0 otherwise */
211	void (pr_cblocks)(u_long, const char , int, int);
212	/* control blocks printing routine */
213	void (pr_stats)(u_long, const char , int, int);
214	/* statistics printing routine */
215	void (pr_istats)(char ); /* per/if statistics printing routine */
216	const char pr_name; / well-known name */
217	int pr_usesysctl; /* non-zero if we use sysctl, not kvm */
218	int pr_protocol;
219	} static const protox[] = {
220	{ N_TCBINFO, N_TCPSTAT, 1, protopr,
221	tcp_stats, NULL, "tcp", 1, IPPROTO_TCP },
222	{ N_UDBINFO, N_UDPSTAT, 1, protopr,
223	udp_stats, NULL, "udp", 1, IPPROTO_UDP },
224	#ifdef SCTP
225	{ -1, N_SCTPSTAT, 1, sctp_protopr,
226	sctp_stats, NULL, "sctp", 1, IPPROTO_SCTP },
227	#endif
228	#ifdef SDP
229	{ -1, -1, 1, protopr,
230	NULL, NULL, "sdp", 1, IPPROTO_TCP },
231	#endif
232	{ N_DIVCBINFO, -1, 1, protopr,
233	NULL, NULL, "divert", 1, IPPROTO_DIVERT },
234	{ N_RIPCBINFO, N_IPSTAT, 1, protopr,
235	ip_stats, NULL, "ip", 1, IPPROTO_RAW },
236	{ N_RIPCBINFO, N_ICMPSTAT, 1, protopr,
237	icmp_stats, NULL, "icmp", 1, IPPROTO_ICMP },
238	{ N_RIPCBINFO, N_IGMPSTAT, 1, protopr,
239	igmp_stats, NULL, "igmp", 1, IPPROTO_IGMP },
240	#ifdef IPSEC
241	{ -1, N_IPSECSTAT, 1, NULL, /* keep as compat */
242	ipsec_stats, NULL, "ipsec", 0, 0},
243	{ -1, N_AHSTAT, 1, NULL,
244	ah_stats, NULL, "ah", 0, 0},
245	{ -1, N_ESPSTAT, 1, NULL,
246	esp_stats, NULL, "esp", 0, 0},
247	{ -1, N_IPCOMPSTAT, 1, NULL,
248	ipcomp_stats, NULL, "ipcomp", 0, 0},
249	#endif
250	{ N_RIPCBINFO, N_PIMSTAT, 1, protopr,
251	pim_stats, NULL, "pim", 1, IPPROTO_PIM },
252	{ -1, N_CARPSTAT, 1, NULL,
253	carp_stats, NULL, "carp", 1, 0 },
254	{ -1, N_PFSYNCSTAT, 1, NULL,
255	pfsync_stats, NULL, "pfsync", 1, 0 },
256	{ -1, N_ARPSTAT, 1, NULL,
257	arp_stats, NULL, "arp", 1, 0 },
258	{ -1, -1, 0, NULL,
259	NULL, NULL, NULL, 0, 0 }
260	};
261
262	#ifdef INET6
263	static const struct protox ip6protox[] = {
264	{ N_TCBINFO, N_TCPSTAT, 1, protopr,
265	tcp_stats, NULL, "tcp", 1, IPPROTO_TCP },
266	{ N_UDBINFO, N_UDPSTAT, 1, protopr,
267	udp_stats, NULL, "udp", 1, IPPROTO_UDP },
268	{ N_RIPCBINFO, N_IP6STAT, 1, protopr,
269	ip6_stats, ip6_ifstats, "ip6", 1, IPPROTO_RAW },
270	{ N_RIPCBINFO, N_ICMP6STAT, 1, protopr,
271	icmp6_stats, icmp6_ifstats, "icmp6", 1, IPPROTO_ICMPV6 },
272	#ifdef SDP
273	{ -1, -1, 1, protopr,
274	NULL, NULL, "sdp", 1, IPPROTO_TCP },
275	#endif
276	#ifdef IPSEC
277	{ -1, N_IPSEC6STAT, 1, NULL,
278	ipsec_stats, NULL, "ipsec6", 0, 0 },
279	#endif
280	#ifdef notyet
281	{ -1, N_PIM6STAT, 1, NULL,
282	pim6_stats, NULL, "pim6", 1, 0 },
283	#endif
284	{ -1, N_RIP6STAT, 1, NULL,
285	rip6_stats, NULL, "rip6", 1, 0 },
286	{ -1, -1, 0, NULL,
287	NULL, NULL, NULL, 0, 0 }
288	};
289	#endif /INET6/
290
291	#ifdef IPSEC
292	static const struct protox pfkeyprotox[] = {
293	{ -1, N_PFKEYSTAT, 1, NULL,
294	pfkey_stats, NULL, "pfkey", 0, 0 },
295	{ -1, -1, 0, NULL,
296	NULL, NULL, NULL, 0, 0 }
297	};
298	#endif
299
300	#ifndef __rtems__
301	static const struct protox atalkprotox[] = {
302	{ N_DDPCB, N_DDPSTAT, 1, atalkprotopr,
303	ddp_stats, NULL, "ddp", 0, 0 },
304	{ -1, -1, 0, NULL,
305	NULL, NULL, NULL, 0, 0 }
306	};
307	#endif
308	#ifdef NETGRAPH
309	static const struct protox netgraphprotox[] = {
310	{ N_NGSOCKS, -1, 1, netgraphprotopr,
311	NULL, NULL, "ctrl", 0, 0 },
312	{ N_NGSOCKS, -1, 1, netgraphprotopr,
313	NULL, NULL, "data", 0, 0 },
314	{ -1, -1, 0, NULL,
315	NULL, NULL, NULL, 0, 0 }
316	};
317	#endif
318	#ifdef IPX
319	static const struct protox ipxprotox[] = {
320	{ N_IPX, N_IPXSTAT, 1, ipxprotopr,
321	ipx_stats, NULL, "ipx", 0, 0 },
322	{ N_IPX, N_SPXSTAT, 1, ipxprotopr,
323	spx_stats, NULL, "spx", 0, 0 },
324	{ -1, -1, 0, NULL,
325	NULL, NULL, 0, 0, 0 }
326	};
327	#endif
328
329	static const struct protox *protoprotox[] = {
330	protox,
331	#ifdef INET6
332	ip6protox,
333	#endif
334	#ifdef IPSEC
335	pfkeyprotox,
336	#endif
337	#ifdef IPX
338	ipxprotox,
339	#endif
340	#ifndef __rtems__
341	atalkprotox, NULL };
342	#else
343	NULL };
344	#endif
345
346	static void printproto(const struct protox , const char );
347	static void usage(void);
348	static const struct protox name2protox(const char );
349	static const struct protox knownname(const char );
350
351	static kvm_t *kvmd;
352	static char nlistf = NULL, memf = NULL;
353
354	int Aflag; /* show addresses of protocol control block */
355	int aflag; /* show all sockets (including servers) */
356	int Bflag; /* show information about bpf consumers */
357	int bflag; /* show i/f total bytes in/out */
358	int dflag; /* show i/f dropped packets */
359	int gflag; /* show group (multicast) routing or stats */
360	int hflag; /* show counters in human readable format */
361	int iflag; /* show interfaces */
362	int Lflag; /* show size of listen queues */
363	int mflag; /* show memory stats */
364	int noutputs = 0; /* how much outputs before we exit */
365	int numeric_addr; /* show addresses numerically */
366	int numeric_port; /* show ports numerically */
367	static int pflag; /* show given protocol */
368	#ifndef __rtems__
369	int Qflag; /* show netisr information */
370	#endif /* __rtems__ */
371	int rflag; /* show routing tables (or routing stats) */
372	int sflag; /* show protocol statistics */
373	int Wflag; /* wide display */
374	int Tflag; /* TCP Information */
375	int xflag; /* extra information, includes all socket buffer info */
376	int zflag; /* zero stats */
377
378	int interval; /* repeat interval for i/f stats */
379
380	char interface; / desired i/f for stats, or NULL for all i/fs */
381	int unit; /* unit number for above */
382
383	int af; /* address family */
384	int live; /* true if we are examining a live system */
385
386	#ifdef __rtems__
387	int protopr_initialized;
388	int do_rtent;
389	struct radix_node_head **rt_tables;
390
391	static int main(int argc, char *argv[]);
392
393	int rtems_bsd_command_netstat(int argc, char *argv[])
394	{
395	int exit_code;
396
397	rtems_bsd_program_lock();
398
399	Aflag = 0;
400	aflag = 0;
401	Bflag = 0;
402	bflag = 0;
403	dflag = 0;
404	gflag = 0;
405	hflag = 0;
406	iflag = 0;
407	Lflag = 0;
408	mflag = 0;
409	noutputs = 0;
410	numeric_addr = 0;
411	numeric_port = 0;
412	pflag = 0;
413	rflag = 0;
414	sflag = 0;
415	Wflag = 0;
416	xflag = 0;
417	zflag = 0;
418	interval = 0;
419	interface = 0;
420	unit = 0;
421	af = 0;
422	live = 0;
423
424	protopr_initialized = 0;
425	do_rtent = 0;
426
427	rtems_bsd_netstat_inet_init();
428
429	exit_code = rtems_bsd_program_call_main("netstat", main, argc, argv);
430
431	free(rt_tables);
432	rt_tables = NULL;
433
434	rtems_bsd_program_unlock();
435
436	return exit_code;
437	}
438	#endif /* __rtems__ */
439	int
440	main(int argc, char *argv[])
441	{
442	const struct protox tp = NULL; / for printing cblocks & stats */
443	int ch;
444	#ifdef __rtems__
445	struct getopt_data getopt_data;
446	memset(&getopt_data, 0, sizeof(getopt_data));
447	#define optind getopt_data.optind
448	#define optarg getopt_data.optarg
449	#define opterr getopt_data.opterr
450	#define optopt getopt_data.optopt
451	#define getopt(argc, argv, opt) getopt_r(argc, argv, "+" opt, &getopt_data)
452	#endif /* __rtems__ */
453
454	af = AF_UNSPEC;
455
456	while ((ch = getopt(argc, argv, "46AaBbdf:ghI:iLlM:mN:np:Qq:rSTsuWw:xz"))
457	!= -1)
458	switch(ch) {
459	case '4':
460	#ifdef INET
461	af = AF_INET;
462	#else
463	errx(1, "IPv4 support is not compiled in");
464	#endif
465	break;
466	case '6':
467	#ifdef INET6
468	af = AF_INET6;
469	#else
470	errx(1, "IPv6 support is not compiled in");
471	#endif
472	break;
473	case 'A':
474	Aflag = 1;
475	break;
476	case 'a':
477	aflag = 1;
478	break;
479	case 'B':
480	Bflag = 1;
481	break;
482	case 'b':
483	bflag = 1;
484	break;
485	case 'd':
486	dflag = 1;
487	break;
488	case 'f':
489	if (strcmp(optarg, "ipx") == 0)
490	af = AF_IPX;
491	else if (strcmp(optarg, "inet") == 0)
492	af = AF_INET;
493	#ifdef INET6
494	else if (strcmp(optarg, "inet6") == 0)
495	af = AF_INET6;
496	#endif
497	#ifdef IPSEC
498	else if (strcmp(optarg, "pfkey") == 0)
499	af = PF_KEY;
500	#endif
501	else if (strcmp(optarg, "unix") == 0)
502	af = AF_UNIX;
503	else if (strcmp(optarg, "atalk") == 0)
504	af = AF_APPLETALK;
505	#ifdef NETGRAPH
506	else if (strcmp(optarg, "ng") == 0
507	\|\| strcmp(optarg, "netgraph") == 0)
508	af = AF_NETGRAPH;
509	#endif
510	else if (strcmp(optarg, "link") == 0)
511	af = AF_LINK;
512	else {
513	errx(1, "%s: unknown address family", optarg);
514	}
515	break;
516	case 'g':
517	gflag = 1;
518	break;
519	case 'h':
520	hflag = 1;
521	break;
522	case 'I': {
523	char *cp;
524
525	iflag = 1;
526	for (cp = interface = optarg; isalpha((unsigned char) *cp); cp++)
527	continue;
528	unit = atoi(cp);
529	break;
530	}
531	case 'i':
532	iflag = 1;
533	break;
534	case 'L':
535	Lflag = 1;
536	break;
537	case 'M':
538	memf = optarg;
539	break;
540	case 'm':
541	mflag = 1;
542	break;
543	case 'N':
544	nlistf = optarg;
545	break;
546	case 'n':
547	numeric_addr = numeric_port = 1;
548	break;
549	case 'p':
550	if ((tp = name2protox(optarg)) == NULL) {
551	errx(1,
552	"%s: unknown or uninstrumented protocol",
553	optarg);
554	}
555	pflag = 1;
556	break;
557	#ifndef __rtems__
558	case 'Q':
559	Qflag = 1;
560	break;
561	#endif /* __rtems__ */
562	case 'q':
563	noutputs = atoi(optarg);
564	if (noutputs != 0)
565	noutputs++;
566	break;
567	case 'r':
568	rflag = 1;
569	break;
570	case 's':
571	++sflag;
572	break;
573	case 'S':
574	numeric_addr = 1;
575	break;
576	case 'u':
577	af = AF_UNIX;
578	break;
579	case 'W':
580	case 'l':
581	Wflag = 1;
582	break;
583	case 'w':
584	interval = atoi(optarg);
585	iflag = 1;
586	break;
587	case 'T':
588	Tflag = 1;
589	break;
590	case 'x':
591	xflag = 1;
592	break;
593	case 'z':
594	zflag = 1;
595	break;
596	case '?':
597	default:
598	usage();
599	}
600	argv += optind;
601	argc -= optind;
602
603	#define BACKWARD_COMPATIBILITY
604	#ifdef BACKWARD_COMPATIBILITY
605	if (*argv) {
606	if (isdigit((unsigned char) **argv)) {
607	interval = atoi(*argv);
608	if (interval <= 0)
609	usage();
610	++argv;
611	iflag = 1;
612	}
613	if (*argv) {
614	nlistf = *argv;
615	if (*++argv)
616	memf = *argv;
617	}
618	}
619	#endif
620
621	/*
622	* Discard setgid privileges if not the running kernel so that bad
623	* guys can't print interesting stuff from kernel memory.
624	*/
625	live = (nlistf == NULL && memf == NULL);
626	if (!live)
627	setgid(getgid());
628
629	if (xflag && Tflag)
630	errx(1, "-x and -T are incompatible, pick one.");
631
632	if (Bflag) {
633	if (!live)
634	usage();
635	bpf_stats(interface);
636	exit(0);
637	}
638	if (mflag) {
639	if (!live) {
640	if (kread(0, NULL, 0) == 0)
641	mbpr(kvmd, nl[N_MBSTAT].n_value);
642	} else
643	mbpr(NULL, 0);
644	exit(0);
645	}
646	#ifndef __rtems__
647	if (Qflag) {
648	if (!live) {
649	if (kread(0, NULL, 0) == 0)
650	netisr_stats(kvmd);
651	} else
652	netisr_stats(NULL);
653	exit(0);
654	}
655	#endif /* __rtems__ */
656	#if 0
657	/*
658	* Keep file descriptors open to avoid overhead
659	* of open/close on each call to get* routines.
660	*/
661	sethostent(1);
662	setnetent(1);
663	#else
664	/*
665	* This does not make sense any more with DNS being default over
666	* the files. Doing a setXXXXent(1) causes a tcp connection to be
667	* used for the queries, which is slower.
668	*/
669	#endif
670	kread(0, NULL, 0);
671	if (iflag && !sflag) {
672	intpr(interval, nl[N_IFNET].n_value, NULL);
673	exit(0);
674	}
675	if (rflag) {
676	if (sflag)
677	rt_stats(nl[N_RTSTAT].n_value, nl[N_RTTRASH].n_value);
678	else
679	routepr(nl[N_RTREE].n_value);
680	exit(0);
681	}
682	if (gflag) {
683	if (sflag) {
684	if (af == AF_INET \|\| af == AF_UNSPEC)
685	mrt_stats(nl[N_MRTSTAT].n_value);
686	#ifdef INET6
687	if (af == AF_INET6 \|\| af == AF_UNSPEC)
688	mrt6_stats(nl[N_MRT6STAT].n_value);
689	#endif
690	} else {
691	if (af == AF_INET \|\| af == AF_UNSPEC)
692	mroutepr(nl[N_MFCHASHTBL].n_value,
693	nl[N_MFCTABLESIZE].n_value,
694	nl[N_VIFTABLE].n_value);
695	#ifdef INET6
696	if (af == AF_INET6 \|\| af == AF_UNSPEC)
697	mroute6pr(nl[N_MF6CTABLE].n_value,
698	nl[N_MIF6TABLE].n_value);
699	#endif
700	}
701	exit(0);
702	}
703
704	if (tp) {
705	printproto(tp, tp->pr_name);
706	exit(0);
707	}
708	if (af == AF_INET \|\| af == AF_UNSPEC)
709	for (tp = protox; tp->pr_name; tp++)
710	printproto(tp, tp->pr_name);
711	#ifdef INET6
712	if (af == AF_INET6 \|\| af == AF_UNSPEC)
713	for (tp = ip6protox; tp->pr_name; tp++)
714	printproto(tp, tp->pr_name);
715	#endif /INET6/
716	#ifdef IPSEC
717	if (af == PF_KEY \|\| af == AF_UNSPEC)
718	for (tp = pfkeyprotox; tp->pr_name; tp++)
719	printproto(tp, tp->pr_name);
720	#endif /IPSEC/
721	#ifdef IPX
722	if (af == AF_IPX \|\| af == AF_UNSPEC) {
723	for (tp = ipxprotox; tp->pr_name; tp++)
724	printproto(tp, tp->pr_name);
725	}
726	#endif /* IPX */
727	#ifndef __rtems__
728	if (af == AF_APPLETALK \|\| af == AF_UNSPEC)
729	for (tp = atalkprotox; tp->pr_name; tp++)
730	printproto(tp, tp->pr_name);
731	#endif
732	#ifdef NETGRAPH
733	if (af == AF_NETGRAPH \|\| af == AF_UNSPEC)
734	for (tp = netgraphprotox; tp->pr_name; tp++)
735	printproto(tp, tp->pr_name);
736	#endif /* NETGRAPH */
737	#ifndef __rtems__
738	if ((af == AF_UNIX \|\| af == AF_UNSPEC) && !sflag)
739	unixpr(nl[N_UNP_COUNT].n_value, nl[N_UNP_GENCNT].n_value,
740	nl[N_UNP_DHEAD].n_value, nl[N_UNP_SHEAD].n_value,
741	nl[N_UNP_SPHEAD].n_value);
742	#endif
743	exit(0);
744	}
745
746	/*
747	* Print out protocol statistics or control blocks (per sflag).
748	* If the interface was not specifically requested, and the symbol
749	* is not in the namelist, ignore this one.
750	*/
751	static void
752	printproto(tp, name)
753	const struct protox *tp;
754	const char *name;
755	{
756	void (pr)(u_long, const char , int, int);
757	u_long off;
758
759	if (sflag) {
760	if (iflag) {
761	if (tp->pr_istats)
762	intpr(interval, nl[N_IFNET].n_value,
763	tp->pr_istats);
764	else if (pflag)
765	printf("%s: no per-interface stats routine\n",
766	tp->pr_name);
767	return;
768	} else {
769	pr = tp->pr_stats;
770	if (!pr) {
771	if (pflag)
772	printf("%s: no stats routine\n",
773	tp->pr_name);
774	return;
775	}
776	if (tp->pr_usesysctl && live)
777	off = 0;
778	else if (tp->pr_sindex < 0) {
779	if (pflag)
780	printf(
781	"%s: stats routine doesn't work on cores\n",
782	tp->pr_name);
783	return;
784	} else
785	off = nl[tp->pr_sindex].n_value;
786	}
787	} else {
788	pr = tp->pr_cblocks;
789	if (!pr) {
790	if (pflag)
791	printf("%s: no PCB routine\n", tp->pr_name);
792	return;
793	}
794	if (tp->pr_usesysctl && live)
795	off = 0;
796	else if (tp->pr_index < 0) {
797	if (pflag)
798	printf(
799	"%s: PCB routine doesn't work on cores\n",
800	tp->pr_name);
801	return;
802	} else
803	off = nl[tp->pr_index].n_value;
804	}
805	if (pr != NULL && (off \|\| (live && tp->pr_usesysctl) \|\|
806	af != AF_UNSPEC))
807	(*pr)(off, name, af, tp->pr_protocol);
808	}
809
810	/*
811	* Read kernel memory, return 0 on success.
812	*/
813	int
814	kread(u_long addr, void *buf, size_t size)
815	{
816	char errbuf[_POSIX2_LINE_MAX];
817
818	if (kvmd == NULL) {
819	kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
820	setgid(getgid());
821	if (kvmd != NULL) {
822	if (kvm_nlist(kvmd, nl) < 0) {
823	if (nlistf)
824	errx(1, "%s: kvm_nlist: %s", nlistf,
825	kvm_geterr(kvmd));
826	else
827	errx(1, "kvm_nlist: %s", kvm_geterr(kvmd));
828	}
829
830	if (nl[0].n_type == 0) {
831	if (nlistf)
832	errx(1, "%s: no namelist", nlistf);
833	else
834	errx(1, "no namelist");
835	}
836	} else {
837	warnx("kvm not available: %s", errbuf);
838	return(-1);
839	}
840	}
841	if (!buf)
842	return (0);
843	if (kvm_read(kvmd, addr, buf, size) != (ssize_t)size) {
844	warnx("%s", kvm_geterr(kvmd));
845	return (-1);
846	}
847	return (0);
848	}
849
850	const char *
851	plural(uintmax_t n)
852	{
853	return (n != 1 ? "s" : "");
854	}
855
856	const char *
857	plurales(uintmax_t n)
858	{
859	return (n != 1 ? "es" : "");
860	}
861
862	const char *
863	pluralies(uintmax_t n)
864	{
865	return (n != 1 ? "ies" : "y");
866	}
867
868	/*
869	* Find the protox for the given "well-known" name.
870	*/
871	static const struct protox *
872	knownname(const char *name)
873	{
874	const struct protox *tpp, tp;
875
876	for (tpp = protoprotox; *tpp; tpp++)
877	for (tp = *tpp; tp->pr_name; tp++)
878	if (strcmp(tp->pr_name, name) == 0)
879	return (tp);
880	return (NULL);
881	}
882
883	/*
884	* Find the protox corresponding to name.
885	*/
886	static const struct protox *
887	name2protox(const char *name)
888	{
889	const struct protox *tp;
890	char *alias; / alias from p->aliases */
891	struct protoent *p;
892
893	/*
894	* Try to find the name in the list of "well-known" names. If that
895	* fails, check if name is an alias for an Internet protocol.
896	*/
897	if ((tp = knownname(name)) != NULL)
898	return (tp);
899
900	setprotoent(1); /* make protocol lookup cheaper */
901	while ((p = getprotoent()) != NULL) {
902	/* assert: name not same as p->name */
903	for (alias = p->p_aliases; *alias; alias++)
904	if (strcmp(name, *alias) == 0) {
905	endprotoent();
906	return (knownname(p->p_name));
907	}
908	}
909	endprotoent();
910	return (NULL);
911	}
912
913	static void
914	usage(void)
915	{
916	(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%s\n",
917	"usage: netstat [-46AaLnSTWx] [-f protocol_family \| -p protocol]\n"
918	" [-M core] [-N system]",
919	" netstat -i \| -I interface [-46abdhnW] [-f address_family]\n"
920	" [-M core] [-N system]",
921	" netstat -w wait [-I interface] [-46d] [-M core] [-N system] [-q howmany]",
922	" netstat -s [-s] [-46z] [-f protocol_family \| -p protocol]\n"
923	" [-M core] [-N system]",
924	" netstat -i \| -I interface [-46s] [-f protocol_family \| -p protocol]\n"
925	" [-M core] [-N system]",
926	" netstat -m [-M core] [-N system]",
927	" netstat -B [-I interface]",
928	" netstat -r [-46AanW] [-f address_family] [-M core] [-N system]",
929	" netstat -rs [-s] [-M core] [-N system]",
930	" netstat -g [-46W] [-f address_family] [-M core] [-N system]",
931	" netstat -gs [-46s] [-f address_family] [-M core] [-N system]",
932	" netstat -Q");
933	exit(1);
934	}

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source: rtems-libbsd/freebsd/usr.bin/netstat/main.c @ fef6dd1

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