1/* -*- Mode: C; tab-width: 4 -*- 2 * 3 * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 17 File: mDNSDebug.c 18 19 Contains: Implementation of debugging utilities. Requires a POSIX environment. 20 21 Version: 1.0 22 23 */ 24 25#include "mDNSDebug.h" 26 27#include <stdio.h> 28 29#if defined(WIN32) || defined(EFI32) || defined(EFI64) || defined(EFIX64) 30// Need to add Windows/EFI syslog support here 31#define LOG_PID 0x01 32#define LOG_CONS 0x02 33#define LOG_PERROR 0x20 34#else 35#include <syslog.h> 36#endif 37 38#include "mDNSEmbeddedAPI.h" 39 40// TODO - turn off debugging 41mDNSexport int mDNS_LoggingEnabled = 1; 42mDNSexport int mDNS_PacketLoggingEnabled = 0; 43 44#if MDNS_DEBUGMSGS && !defined(__ANDROID__) 45mDNSexport int mDNS_DebugMode = mDNStrue; 46#else 47mDNSexport int mDNS_DebugMode = mDNSfalse; 48#endif 49 50// Note, this uses mDNS_vsnprintf instead of standard "vsnprintf", because mDNS_vsnprintf knows 51// how to print special data types like IP addresses and length-prefixed domain names 52#if MDNS_DEBUGMSGS > 1 53mDNSexport void verbosedebugf_(const char *format, ...) 54 { 55 char buffer[512]; 56 va_list ptr; 57 va_start(ptr,format); 58 buffer[mDNS_vsnprintf(buffer, sizeof(buffer), format, ptr)] = 0; 59 va_end(ptr); 60 mDNSPlatformWriteDebugMsg(buffer); 61 } 62#endif 63 64// Log message with default "mDNSResponder" ident string at the start 65mDNSlocal void LogMsgWithLevelv(mDNSLogLevel_t logLevel, const char *format, va_list ptr) 66 { 67 char buffer[512]; 68 buffer[mDNS_vsnprintf((char *)buffer, sizeof(buffer), format, ptr)] = 0; 69 mDNSPlatformWriteLogMsg(ProgramName, buffer, logLevel); 70 } 71 72#define LOG_HELPER_BODY(L) \ 73 { \ 74 va_list ptr; \ 75 va_start(ptr,format); \ 76 LogMsgWithLevelv(L, format, ptr); \ 77 va_end(ptr); \ 78 } 79 80// see mDNSDebug.h 81#if !MDNS_HAS_VA_ARG_MACROS 82void LogMsg_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_MSG) 83void LogOperation_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_OPERATION) 84void LogSPS_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_SPS) 85void LogInfo_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_INFO) 86#endif 87 88#if MDNS_DEBUGMSGS 89void debugf_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_DEBUG) 90#endif 91 92// Log message with default "mDNSResponder" ident string at the start 93mDNSexport void LogMsgWithLevel(mDNSLogLevel_t logLevel, const char *format, ...) 94 LOG_HELPER_BODY(logLevel) 95