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 38 #include <err.h> 39 #include <errno.h> 40 #include <netgraph.h> 41 #include <stdio.h> 42 43 #include "ngctl.h" 44 45 #define NOSTATUS "<no status>" 46 47 static int StatusCmd(int ac, char **av); 48 49 const struct ngcmd status_cmd = { 50 StatusCmd, 51 "status <path>", 52 "Get human readable status information from the node at <path>", 53 NULL, 54 { NULL } 55 }; 56 57 static int 58 StatusCmd(int ac, char **av) 59 { 60 u_char sbuf[sizeof(struct ng_mesg) + NG_TEXTRESPONSE]; 61 struct ng_mesg *const resp = (struct ng_mesg *) sbuf; 62 char *const status = (char *) resp->data; 63 char *path; 64 int nostat = 0; 65 66 /* Get arguments */ 67 switch (ac) { 68 case 2: 69 path = av[1]; 70 break; 71 default: 72 return (CMDRTN_USAGE); 73 } 74 75 /* Get node status summary */ 76 if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE, 77 NGM_TEXT_STATUS, NULL, 0) < 0) { 78 switch (errno) { 79 case EINVAL: 80 nostat = 1; 81 break; 82 default: 83 warn("send msg"); 84 return (CMDRTN_ERROR); 85 } 86 } else { 87 if (NgRecvMsg(csock, resp, sizeof(sbuf), NULL) < 0 88 || (resp->header.flags & NGF_RESP) == 0) 89 nostat = 1; 90 } 91 92 /* Show it */ 93 if (nostat) 94 printf("No status available for \"%s\"\n", path); 95 else 96 printf("Status for \"%s\":\n%s\n", path, status); 97 return (CMDRTN_OK); 98 } 99 100