xref: /freebsd/usr.sbin/ngctl/debug.c (revision fd45b686f9d92f583366c75b22c04c7ee49709c0)
1 
2 /*
3  * debug.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 <netgraph.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 
43 #include "ngctl.h"
44 
45 static int DebugCmd(int ac, char **av);
46 
47 const struct ngcmd debug_cmd = {
48 	DebugCmd,
49 	"debug [level]",
50 	"Get/set debugging verbosity level",
51 	"Without any argument, this command displays the current"
52 	" debugging verbosity level. If the argument is ``+'' or ``-''"
53 	" the debug level is incremented or decremented; otherwise,"
54 	" it must be an absolute numerical level.",
55 	{ NULL }
56 };
57 
58 static int
59 DebugCmd(int ac, char **av)
60 {
61 	int level;
62 
63 	/* Get arguments */
64 	switch (ac) {
65 	case 2:
66 		if (!strcmp(av[1], "+"))
67 			level = NgSetDebug(-1) + 1;
68 		else if (!strcmp(av[1], "-"))
69 			level = NgSetDebug(-1) - 1;
70 		else if ((level = atoi(av[1])) < 0)
71 			return (CMDRTN_USAGE);
72 		NgSetDebug(level);
73 		break;
74 	case 1:
75 		printf("Current debug level is %d\n", NgSetDebug(-1));
76 		break;
77 	default:
78 		return (CMDRTN_USAGE);
79 	}
80 	return (CMDRTN_OK);
81 }
82 
83