status.c revision 52419 
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 * $FreeBSD: head/usr.sbin/ngctl/status.c 52419 1999-10-21 09:06:11Z julian $
38 */
39
40#include "ngctl.h"
41
42#define NOSTATUS	"<no status>"
43
44static int StatusCmd(int ac, char **av);
45
46const struct ngcmd status_cmd = {
47	StatusCmd,
48	"status <path>",
49	"Get human readable status information from the node at <path>",
50	NULL
51};
52
53static int
54StatusCmd(int ac, char **av)
55{
56	u_char sbuf[sizeof(struct ng_mesg) + NG_TEXTRESPONSE];
57	struct ng_mesg *const resp = (struct ng_mesg *) sbuf;
58	char *const status = (char *) resp->data;
59	char *path;
60	int nostat = 0;
61
62	/* Get arguments */
63	switch (ac) {
64	case 2:
65		path = av[1];
66		break;
67	default:
68		return(CMDRTN_USAGE);
69	}
70
71	/* Get node status summary */
72	if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
73	    NGM_TEXT_STATUS, NULL, 0) < 0) {
74		switch (errno) {
75		case EINVAL:
76			nostat = 1;
77			break;
78		default:
79			warn("send msg");
80			return(CMDRTN_ERROR);
81		}
82	} else {
83		if (NgRecvMsg(csock, resp, sizeof(sbuf), NULL) < 0
84		    || (resp->header.flags & NGF_RESP) == 0)
85			nostat = 1;
86	}
87
88	/* Show it */
89	if (nostat)
90		printf("No status available for \"%s\"\n", path);
91	else
92		printf("Status for \"%s\":\n%s\n", path, status);
93	return(CMDRTN_OK);
94}
95
96