1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate #include <errno.h>
31*0Sstevel@tonic-gate #include <string.h>
32*0Sstevel@tonic-gate #include <stdarg.h>
33*0Sstevel@tonic-gate #include <sys/types.h>
34*0Sstevel@tonic-gate #include "snmp_msg.h"
35*0Sstevel@tonic-gate #include "error.h"
36*0Sstevel@tonic-gate #include "trace.h"
37*0Sstevel@tonic-gate
38*0Sstevel@tonic-gate
39*0Sstevel@tonic-gate /***** GLOBAL VARIABLES *****/
40*0Sstevel@tonic-gate
41*0Sstevel@tonic-gate int trace_level = 0;
42*0Sstevel@tonic-gate uint32_t trace_flags = 0;
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate
45*0Sstevel@tonic-gate /***** STATIC VARIABLES *****/
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate static FILE *trace_stream = stdout;
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate /******************************************************************/
51*0Sstevel@tonic-gate
trace(char * format,...)52*0Sstevel@tonic-gate void trace(char *format, ...)
53*0Sstevel@tonic-gate {
54*0Sstevel@tonic-gate va_list ap;
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate if(trace_stream == NULL)
57*0Sstevel@tonic-gate {
58*0Sstevel@tonic-gate return;
59*0Sstevel@tonic-gate }
60*0Sstevel@tonic-gate
61*0Sstevel@tonic-gate va_start(ap, format);
62*0Sstevel@tonic-gate (void)vfprintf(trace_stream, format, ap);
63*0Sstevel@tonic-gate va_end(ap);
64*0Sstevel@tonic-gate }
65*0Sstevel@tonic-gate
66*0Sstevel@tonic-gate
67*0Sstevel@tonic-gate /******************************************************************/
68*0Sstevel@tonic-gate
trace_set(int level,char * error_label)69*0Sstevel@tonic-gate int trace_set(int level, char *error_label)
70*0Sstevel@tonic-gate {
71*0Sstevel@tonic-gate error_label[0] = '\0';
72*0Sstevel@tonic-gate
73*0Sstevel@tonic-gate if(level < 0 || level > TRACE_LEVEL_MAX)
74*0Sstevel@tonic-gate {
75*0Sstevel@tonic-gate sprintf(error_label, ERR_MSG_BAD_TRACE_LEVEL,
76*0Sstevel@tonic-gate level, TRACE_LEVEL_MAX);
77*0Sstevel@tonic-gate return (-1);
78*0Sstevel@tonic-gate }
79*0Sstevel@tonic-gate
80*0Sstevel@tonic-gate trace_level = level;
81*0Sstevel@tonic-gate
82*0Sstevel@tonic-gate if(trace_level > 0)
83*0Sstevel@tonic-gate trace_flags = trace_flags | TRACE_TRAFFIC;
84*0Sstevel@tonic-gate else
85*0Sstevel@tonic-gate trace_flags = trace_flags & (~TRACE_TRAFFIC);
86*0Sstevel@tonic-gate
87*0Sstevel@tonic-gate if(trace_level > 2)
88*0Sstevel@tonic-gate trace_flags = trace_flags | TRACE_PDU;
89*0Sstevel@tonic-gate else
90*0Sstevel@tonic-gate trace_flags = trace_flags & (~TRACE_PDU);
91*0Sstevel@tonic-gate
92*0Sstevel@tonic-gate if(trace_level > 3)
93*0Sstevel@tonic-gate trace_flags = trace_flags | TRACE_PACKET;
94*0Sstevel@tonic-gate else
95*0Sstevel@tonic-gate trace_flags = trace_flags & (~TRACE_PACKET);
96*0Sstevel@tonic-gate
97*0Sstevel@tonic-gate return (0);
98*0Sstevel@tonic-gate }
99*0Sstevel@tonic-gate
100*0Sstevel@tonic-gate
101*0Sstevel@tonic-gate /******************************************************************/
102*0Sstevel@tonic-gate
trace_reset()103*0Sstevel@tonic-gate void trace_reset()
104*0Sstevel@tonic-gate {
105*0Sstevel@tonic-gate (void)trace_set(0, error_label);
106*0Sstevel@tonic-gate }
107*0Sstevel@tonic-gate
108*0Sstevel@tonic-gate
109*0Sstevel@tonic-gate /******************************************************************/
110*0Sstevel@tonic-gate
trace_increment()111*0Sstevel@tonic-gate void trace_increment()
112*0Sstevel@tonic-gate {
113*0Sstevel@tonic-gate if(trace_level < TRACE_LEVEL_MAX)
114*0Sstevel@tonic-gate (void)trace_set(trace_level + 1, error_label);
115*0Sstevel@tonic-gate
116*0Sstevel@tonic-gate }
117*0Sstevel@tonic-gate
118*0Sstevel@tonic-gate
119*0Sstevel@tonic-gate /******************************************************************/
120*0Sstevel@tonic-gate
trace_decrement()121*0Sstevel@tonic-gate void trace_decrement()
122*0Sstevel@tonic-gate {
123*0Sstevel@tonic-gate if(trace_level > 0)
124*0Sstevel@tonic-gate (void)trace_set(trace_level - 1, error_label);
125*0Sstevel@tonic-gate }
126