xref: /dragonfly/usr.sbin/ngctl/show.c (revision 2cd2d2b5)
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: src/usr.sbin/ngctl/show.c,v 1.2 1999/11/30 02:45:31 archie Exp $
38  * $DragonFly: src/usr.sbin/ngctl/show.c,v 1.2 2003/06/17 04:29:57 dillon Exp $
39  */
40 
41 #include "ngctl.h"
42 
43 #define FMT		"  %-15s %-15s %-12s %-15s %-15s\n"
44 #define UNNAMED		"<unnamed>"
45 #define NOSTATUS	"<no status>"
46 
47 static int ShowCmd(int ac, char **av);
48 
49 const struct ngcmd show_cmd = {
50 	ShowCmd,
51 	"show [-n] <path>",
52 	"Show information about the node at <path>",
53 	"If the -n flag is given, hooks are not listed.",
54 	{ "inquire", "info" }
55 };
56 
57 static int
58 ShowCmd(int ac, char **av)
59 {
60 	char *path;
61 	u_char rbuf[16 * 1024];
62 	struct ng_mesg *const resp = (struct ng_mesg *) rbuf;
63 	struct hooklist *const hlist = (struct hooklist *) resp->data;
64 	struct nodeinfo *const ninfo = &hlist->nodeinfo;
65 	int ch, no_hooks = 0;
66 
67 	/* Get options */
68 	optind = 1;
69 	while ((ch = getopt(ac, av, "n")) != EOF) {
70 		switch (ch) {
71 		case 'n':
72 			no_hooks = 1;
73 			break;
74 		case '?':
75 		default:
76 			return(CMDRTN_USAGE);
77 			break;
78 		}
79 	}
80 	ac -= optind;
81 	av += optind;
82 
83 	/* Get arguments */
84 	switch (ac) {
85 	case 1:
86 		path = av[0];
87 		break;
88 	default:
89 		return(CMDRTN_USAGE);
90 	}
91 
92 	/* Get node info and hook list */
93 	if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
94 	    NGM_LISTHOOKS, NULL, 0) < 0) {
95 		warn("send msg");
96 		return(CMDRTN_ERROR);
97 	}
98 	if (NgRecvMsg(csock, resp, sizeof(rbuf), NULL) < 0) {
99 		warn("recv msg");
100 		return(CMDRTN_ERROR);
101 	}
102 
103 	/* Show node information */
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 		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 	return(CMDRTN_OK);
130 }
131 
132 
133