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
StatusCmd(int ac,char ** av)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