1 2 /* 3 * status.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 <errno.h> 42 #include <netgraph.h> 43 #include <stdio.h> 44 45 #include "ngctl.h" 46 47 #define NOSTATUS "<no status>" 48 49 static int StatusCmd(int ac, char **av); 50 51 const struct ngcmd status_cmd = { 52 StatusCmd, 53 "status <path>", 54 "Get human readable status information from the node at <path>", 55 NULL, 56 { NULL } 57 }; 58 59 static int 60 StatusCmd(int ac, char **av) 61 { 62 u_char sbuf[sizeof(struct ng_mesg) + NG_TEXTRESPONSE]; 63 struct ng_mesg *const resp = (struct ng_mesg *) sbuf; 64 char *const status = (char *) resp->data; 65 char *path; 66 int nostat = 0; 67 68 /* Get arguments */ 69 switch (ac) { 70 case 2: 71 path = av[1]; 72 break; 73 default: 74 return (CMDRTN_USAGE); 75 } 76 77 /* Get node status summary */ 78 if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE, 79 NGM_TEXT_STATUS, NULL, 0) < 0) { 80 switch (errno) { 81 case EINVAL: 82 nostat = 1; 83 break; 84 default: 85 warn("send msg"); 86 return (CMDRTN_ERROR); 87 } 88 } else { 89 if (NgRecvMsg(csock, resp, sizeof(sbuf), NULL) < 0 90 || (resp->header.flags & NGF_RESP) == 0) 91 nostat = 1; 92 } 93 94 /* Show it */ 95 if (nostat) 96 printf("No status available for \"%s\"\n", path); 97 else 98 printf("Status for \"%s\":\n%s\n", path, status); 99 return (CMDRTN_OK); 100 } 101 102