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
StatusCmd(int ac,char ** av)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