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 mDNSexport int mDNS_LoggingEnabled = 0; 41 mDNSexport int mDNS_PacketLoggingEnabled = 0; 42 mDNSexport int mDNS_McastLoggingEnabled = 0; 43 mDNSexport int mDNS_McastTracingEnabled = 0; 44 45 #if MDNS_DEBUGMSGS 46 mDNSexport int mDNS_DebugMode = mDNStrue; 47 #else 48 mDNSexport int mDNS_DebugMode = mDNSfalse; 49 #endif 50 51 // Note, this uses mDNS_vsnprintf instead of standard "vsnprintf", because mDNS_vsnprintf knows 52 // how to print special data types like IP addresses and length-prefixed domain names 53 #if MDNS_DEBUGMSGS > 1 54 mDNSexport void verbosedebugf_(const char *format, ...) 55 { 56 char buffer[512]; 57 va_list ptr; 58 va_start(ptr,format); 59 buffer[mDNS_vsnprintf(buffer, sizeof(buffer), format, ptr)] = 0; 60 va_end(ptr); 61 mDNSPlatformWriteDebugMsg(buffer); 62 } 63 #endif 64 65 // Log message with default "mDNSResponder" ident string at the start 66 mDNSlocal void LogMsgWithLevelv(mDNSLogLevel_t logLevel, const char *format, va_list ptr) 67 { 68 char buffer[512]; 69 buffer[mDNS_vsnprintf((char *)buffer, sizeof(buffer), format, ptr)] = 0; 70 mDNSPlatformWriteLogMsg(ProgramName, buffer, logLevel); 71 } 72 73 #define LOG_HELPER_BODY(L) \ 74 { \ 75 va_list ptr; \ 76 va_start(ptr,format); \ 77 LogMsgWithLevelv(L, format, ptr); \ 78 va_end(ptr); \ 79 } 80 81 // see mDNSDebug.h 82 #if !MDNS_HAS_VA_ARG_MACROS 83 void LogMsg_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_MSG) 84 void LogOperation_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_OPERATION) 85 void LogSPS_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_SPS) 86 void LogInfo_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_INFO) 87 #endif 88 89 #if MDNS_DEBUGMSGS 90 void debugf_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_DEBUG) 91 #endif 92 93 // Log message with default "mDNSResponder" ident string at the start 94 mDNSexport void LogMsgWithLevel(mDNSLogLevel_t logLevel, const char *format, ...) 95 LOG_HELPER_BODY(logLevel) 96