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