1 /* 2 * status.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 <errno.h> 39 #include <netgraph.h> 40 #include <stdio.h> 41 42 #include "ngctl.h" 43 44 #define NOSTATUS "<no status>" 45 46 static int StatusCmd(int ac, char **av); 47 48 const struct ngcmd status_cmd = { 49 StatusCmd, 50 "status <path>", 51 "Get human readable status information from the node at <path>", 52 NULL, 53 { NULL } 54 }; 55 56 static int 57 StatusCmd(int ac, char **av) 58 { 59 u_char sbuf[sizeof(struct ng_mesg) + NG_TEXTRESPONSE]; 60 struct ng_mesg *const resp = (struct ng_mesg *) sbuf; 61 char *const status = (char *) resp->data; 62 char *path; 63 int nostat = 0; 64 65 /* Get arguments */ 66 switch (ac) { 67 case 2: 68 path = av[1]; 69 break; 70 default: 71 return (CMDRTN_USAGE); 72 } 73 74 /* Get node status summary */ 75 if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE, 76 NGM_TEXT_STATUS, NULL, 0) < 0) { 77 switch (errno) { 78 case EINVAL: 79 nostat = 1; 80 break; 81 default: 82 warn("send msg"); 83 return (CMDRTN_ERROR); 84 } 85 } else { 86 if (NgRecvMsg(csock, resp, sizeof(sbuf), NULL) < 0 || 87 (resp->header.flags & NGF_RESP) == 0) 88 nostat = 1; 89 } 90 91 /* Show it */ 92 if (nostat) 93 printf("No status available for \"%s\"\n", path); 94 else 95 printf("Status for \"%s\":\n%s\n", path, status); 96 return (CMDRTN_OK); 97 } 98