usr.sbin/ngctl/types.c

   1
   2 /*
   3  * types.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 <netgraph.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <unistd.h>
  45
  46 #include "ngctl.h"
  47
  48 static int TypesCmd(int ac, char **av);
  49
  50 const struct ngcmd types_cmd = {
  51         TypesCmd,
  52         "types",
  53         "Show information about all installed node types",
  54         NULL,
  55         { NULL }
  56 };
  57
  58 static int
  59 TypesCmd(int ac, char **av __unused)
  60 {
  61         struct ng_mesg *resp;
  62         struct typelist *tlist;
  63         int rtn = CMDRTN_OK;
  64         u_int k;
  65
  66         /* Get arguments */
  67         switch (ac) {
  68         case 1:
  69                 break;
  70         default:
  71                 return (CMDRTN_USAGE);
  72         }
  73
  74         /* Get list of types */
  75         if (NgSendMsg(csock, ".", NGM_GENERIC_COOKIE,
  76             NGM_LISTTYPES, NULL, 0) < 0) {
  77                 warn("send msg");
  78                 return (CMDRTN_ERROR);
  79         }
  80         if (NgAllocRecvMsg(csock, &resp, NULL) < 0) {
  81                 warn("recv msg");
  82                 return (CMDRTN_ERROR);
  83         }
  84
  85         /* Show each type */
  86         tlist = (struct typelist *) resp->data;
  87         printf("There are %d total types:\n", tlist->numtypes);
  88         if (tlist->numtypes > 0) {
  89                 printf("%15s   Number of living nodes\n", "Type name");
  90                 printf("%15s   ----------------------\n", "---------");
  91         }
  92         for (k = 0; k < tlist->numtypes; k++) {
  93                 struct typeinfo *const ti = &tlist->typeinfo[k];
  94                 printf("%15s   %5d\n", ti->type_name, ti->numnodes);
  95         }
  96
  97         /* Done */
  98         free(resp);
  99         return (rtn);
 100 }
 101