xref: /dragonfly/usr.sbin/ngctl/rmhook.c (revision 0ca59c34)
1 /*
2  * rmhook.c
3  *
4  * Copyright (c) 1996-1999 Whistle Communications, Inc.
5  * All rights reserved.
6  *
7  * Subject to the following obligations and disclaimer of warranty, use and
8  * redistribution of this software, in source or object code forms, with or
9  * without modifications are expressly permitted by Whistle Communications;
10  * provided, however, that:
11  * 1. Any and all reproductions of the source or object code must include the
12  *    copyright notice above and the following disclaimer of warranties; and
13  * 2. No rights are granted, in any manner or form, to use Whistle
14  *    Communications, Inc. trademarks, including the mark "WHISTLE
15  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
16  *    such appears in the above copyright notice or in the software.
17  *
18  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
19  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
20  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
21  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
23  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
24  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
25  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
26  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
27  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
28  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
29  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
30  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
34  * OF SUCH DAMAGE.
35  *
36  * $FreeBSD: src/usr.sbin/ngctl/rmhook.c,v 1.2 1999/11/30 02:45:31 archie Exp $
37  * $DragonFly: src/usr.sbin/ngctl/rmhook.c,v 1.3 2005/03/16 04:45:07 joerg Exp $
38  */
39 
40 #include "ngctl.h"
41 
42 static int RmHookCmd(int ac, const char **av);
43 
44 const struct ngcmd rmhook_cmd = {
45 	RmHookCmd,
46 	"rmhook [path] <hook>",
47 	"Disconnect hook \"hook\" of the node at \"path\"",
48 	"The rmhook command forces the node at \"path\" to break the link"
49 	" formed by its hook \"hook\", if connected."
50 	" If \"path\" is omitted then \".\" is assumed.",
51 	{ "disconnect" }
52 };
53 
54 static int
55 RmHookCmd(int ac, const char **av)
56 {
57 	struct ngm_rmhook rmh;
58 	const char *path = ".";
59 
60 	/* Get arguments */
61 	switch (ac) {
62 	case 3:
63 		path = av[1];
64 		ac--;
65 		av++;
66 		/* FALLTHROUGH */
67 	case 2:
68 		snprintf(rmh.ourhook, sizeof(rmh.ourhook), "%s", av[1]);
69 		break;
70 	default:
71 		return(CMDRTN_USAGE);
72 	}
73 
74 	/* Send message */
75 	if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
76 	    NGM_RMHOOK, &rmh, sizeof(rmh)) < 0) {
77 		warn("send msg");
78 		return(CMDRTN_ERROR);
79 	}
80 	return(CMDRTN_OK);
81 }
82