show.c revision 125115 
1
2/*
3 * show.c
4 *
5 * Copyright (c) 1996-1999 Whistle Communications, Inc.
6 * All rights reserved.
7 *
8 * Subject to the following obligations and disclaimer of warranty, use and
9 * redistribution of this software, in source or object code forms, with or
10 * without modifications are expressly permitted by Whistle Communications;
11 * provided, however, that:
12 * 1. Any and all reproductions of the source or object code must include the
13 *    copyright notice above and the following disclaimer of warranties; and
14 * 2. No rights are granted, in any manner or form, to use Whistle
15 *    Communications, Inc. trademarks, including the mark "WHISTLE
16 *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
17 *    such appears in the above copyright notice or in the software.
18 *
19 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
20 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
21 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
22 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
24 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
25 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
26 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
27 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
28 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
29 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
30 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
35 * OF SUCH DAMAGE.
36 *
37 * $FreeBSD: head/usr.sbin/ngctl/show.c 125115 2004-01-27 21:52:52Z ru $
38 */
39
40#include "ngctl.h"
41
42#define FMT		"  %-15s %-15s %-12s %-15s %-15s\n"
43#define UNNAMED		"<unnamed>"
44#define NOSTATUS	"<no status>"
45
46static int ShowCmd(int ac, char **av);
47
48const struct ngcmd show_cmd = {
49	ShowCmd,
50	"show [-n] <path>",
51	"Show information about the node at <path>",
52	"If the -n flag is given, hooks are not listed.",
53	{ "inquire", "info" }
54};
55
56static int
57ShowCmd(int ac, char **av)
58{
59	char *path;
60	struct ng_mesg *resp;
61	struct hooklist *hlist;
62	struct nodeinfo *ninfo;
63	int ch, no_hooks = 0;
64
65	/* Get options */
66	optind = 1;
67	while ((ch = getopt(ac, av, "n")) != EOF) {
68		switch (ch) {
69		case 'n':
70			no_hooks = 1;
71			break;
72		case '?':
73		default:
74			return(CMDRTN_USAGE);
75			break;
76		}
77	}
78	ac -= optind;
79	av += optind;
80
81	/* Get arguments */
82	switch (ac) {
83	case 1:
84		path = av[0];
85		break;
86	default:
87		return(CMDRTN_USAGE);
88	}
89
90	/* Get node info and hook list */
91	if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
92	    NGM_LISTHOOKS, NULL, 0) < 0) {
93		warn("send msg");
94		return(CMDRTN_ERROR);
95	}
96	if (NgAllocRecvMsg(csock, &resp, NULL) < 0) {
97		warn("recv msg");
98		return(CMDRTN_ERROR);
99	}
100
101	/* Show node information */
102	hlist = (struct hooklist *) resp->data;
103	ninfo = &hlist->nodeinfo;
104	if (!*ninfo->name)
105		snprintf(ninfo->name, sizeof(ninfo->name), "%s", UNNAMED);
106	printf("  Name: %-15s Type: %-15s ID: %08x   Num hooks: %d\n",
107	    ninfo->name, ninfo->type, ninfo->id, ninfo->hooks);
108	if (!no_hooks && ninfo->hooks > 0) {
109		u_int k;
110
111		printf(FMT, "Local hook", "Peer name",
112		    "Peer type", "Peer ID", "Peer hook");
113		printf(FMT, "----------", "---------",
114		    "---------", "-------", "---------");
115		for (k = 0; k < ninfo->hooks; k++) {
116			struct linkinfo *const link = &hlist->link[k];
117			struct nodeinfo *const peer = &hlist->link[k].nodeinfo;
118			char idbuf[20];
119
120			if (!*peer->name) {
121				snprintf(peer->name, sizeof(peer->name),
122				  "%s", UNNAMED);
123			}
124			snprintf(idbuf, sizeof(idbuf), "%08x", peer->id);
125			printf(FMT, link->ourhook, peer->name,
126			    peer->type, idbuf, link->peerhook);
127		}
128	}
129	free(resp);
130	return(CMDRTN_OK);
131}
132
133
134