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