usr.sbin/ngctl/status.c

   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  * $FreeBSD: src/usr.sbin/ngctl/status.c,v 1.1 1999/10/21 09:06:09 julian Exp $
  37  * $DragonFly: src/usr.sbin/ngctl/status.c,v 1.4 2005/03/16 05:19:11 joerg Exp $
  38  */
  39
  40 #include "ngctl.h"
  41
  42 #define NOSTATUS        "<no status>"
  43
  44 static int StatusCmd(int ac, const char **av);
  45
  46 const struct ngcmd status_cmd = {
  47         StatusCmd,
  48         "status <path>",
  49         "Get human readable status information from the node at <path>",
  50         NULL,
  51         { NULL }
  52 };
  53
  54 static int
  55 StatusCmd(int ac, const char **av)
  56 {
  57         u_char sbuf[sizeof(struct ng_mesg) + NG_TEXTRESPONSE];
  58         struct ng_mesg *const resp = (struct ng_mesg *) sbuf;
  59         char *const status = (char *) resp->data;
  60         const char *path;
  61         int nostat = 0;
  62
  63         /* Get arguments */
  64         switch (ac) {
  65         case 2:
  66                 path = av[1];
  67                 break;
  68         default:
  69                 return(CMDRTN_USAGE);
  70         }
  71
  72         /* Get node status summary */
  73         if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
  74             NGM_TEXT_STATUS, NULL, 0) < 0) {
  75                 switch (errno) {
  76                 case EINVAL:
  77                         nostat = 1;
  78                         break;
  79                 default:
  80                         warn("send msg");
  81                         return(CMDRTN_ERROR);
  82                 }
  83         } else {
  84                 if (NgRecvMsg(csock, resp, sizeof(sbuf), NULL) < 0
  85                     || (resp->header.flags & NGF_RESP) == 0)
  86                         nostat = 1;
  87         }
  88
  89         /* Show it */
  90         if (nostat)
  91                 printf("No status available for \"%s\"\n", path);
  92         else
  93                 printf("Status for \"%s\":\n%s\n", path, status);
  94         return(CMDRTN_OK);
  95 }