1 2 /* 3 * rmhook.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 * $FreeBSD$ 38 */ 39 40 #include <err.h> 41 #include <netgraph.h> 42 #include <stdio.h> 43 44 #include "ngctl.h" 45 46 static int RmHookCmd(int ac, char **av); 47 48 const struct ngcmd rmhook_cmd = { 49 RmHookCmd, 50 "rmhook [path] <hook>", 51 "Disconnect hook \"hook\" of the node at \"path\"", 52 "The rmhook command forces the node at \"path\" to break the link" 53 " formed by its hook \"hook\", if connected." 54 " If \"path\" is omitted then \".\" is assumed.", 55 { "disconnect" } 56 }; 57 58 static int 59 RmHookCmd(int ac, char **av) 60 { 61 struct ngm_rmhook rmh; 62 const char *path = "."; 63 64 /* Get arguments */ 65 switch (ac) { 66 case 3: 67 path = av[1]; 68 ac--; 69 av++; 70 /* FALLTHROUGH */ 71 case 2: 72 snprintf(rmh.ourhook, sizeof(rmh.ourhook), "%s", av[1]); 73 break; 74 default: 75 return (CMDRTN_USAGE); 76 } 77 78 /* Send message */ 79 if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE, 80 NGM_RMHOOK, &rmh, sizeof(rmh)) < 0) { 81 warn("send msg"); 82 return (CMDRTN_ERROR); 83 } 84 return (CMDRTN_OK); 85 } 86 87