| /* -*- Mode: C; tab-width: 4 -*- |
| * |
| * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| |
| File: mDNSDebug.c |
| |
| Contains: Implementation of debugging utilities. Requires a POSIX environment. |
| |
| Version: 1.0 |
| |
| Change History (most recent first): |
| |
| $Log: mDNSDebug.c,v $ |
| Revision 1.16 2009/04/11 01:43:28 jessic2 |
| <rdar://problem/4426780> Daemon: Should be able to turn on LogOperation dynamically |
| |
| Revision 1.15 2009/04/11 00:20:26 jessic2 |
| <rdar://problem/4426780> Daemon: Should be able to turn on LogOperation dynamically |
| |
| Revision 1.14 2008/11/26 00:01:08 cheshire |
| Get rid of "Unknown" tag in SIGINFO output on Leopard |
| |
| Revision 1.13 2007/12/01 00:40:30 cheshire |
| Fixes from Bob Bradley for building on EFI |
| |
| Revision 1.12 2007/10/01 19:06:19 cheshire |
| Defined symbolic constant MDNS_LOG_INITIAL_LEVEL to set the logging level we start out at |
| |
| Revision 1.11 2007/07/27 20:19:56 cheshire |
| For now, comment out unused log levels MDNS_LOG_ERROR, MDNS_LOG_WARN, MDNS_LOG_INFO, MDNS_LOG_DEBUG |
| |
| Revision 1.10 2007/06/15 21:54:51 cheshire |
| <rdar://problem/4883206> Add packet logging to help debugging private browsing over TLS |
| |
| Revision 1.9 2007/04/05 19:52:32 cheshire |
| Display correct ident in syslog messages (i.e. in dnsextd, ProgramName is not "mDNSResponder") |
| |
| Revision 1.8 2007/01/20 01:43:27 cheshire |
| <rdar://problem/4058383> Should not write log messages to /dev/console |
| |
| Revision 1.7 2006/08/14 23:24:56 cheshire |
| Re-licensed mDNSResponder daemon source code under Apache License, Version 2.0 |
| |
| Revision 1.6 2005/01/27 22:57:56 cheshire |
| Fix compile errors on gcc4 |
| |
| Revision 1.5 2004/09/17 01:08:55 cheshire |
| Renamed mDNSClientAPI.h to mDNSEmbeddedAPI.h |
| The name "mDNSClientAPI.h" is misleading to new developers looking at this code. The interfaces |
| declared in that file are ONLY appropriate to single-address-space embedded applications. |
| For clients on general-purpose computers, the interfaces defined in dns_sd.h should be used. |
| |
| Revision 1.4 2004/06/11 22:36:51 cheshire |
| Fixes for compatibility with Windows |
| |
| Revision 1.3 2004/01/28 21:14:23 cheshire |
| Reconcile debug_mode and gDebugLogging into a single flag (mDNS_DebugMode) |
| |
| Revision 1.2 2003/12/09 01:30:40 rpantos |
| Fix usage of ARGS... macros to build properly on Windows. |
| |
| Revision 1.1 2003/12/08 21:11:42; rpantos |
| Changes necessary to support mDNSResponder on Linux. |
| |
| */ |
| |
| #include "mDNSDebug.h" |
| |
| #include <stdio.h> |
| |
| #if defined(WIN32) || defined(EFI32) || defined(EFI64) || defined(EFIX64) |
| // Need to add Windows/EFI syslog support here |
| #define LOG_PID 0x01 |
| #define LOG_CONS 0x02 |
| #define LOG_PERROR 0x20 |
| #else |
| #include <syslog.h> |
| #endif |
| |
| #include "mDNSEmbeddedAPI.h" |
| |
| mDNSexport int mDNS_LoggingEnabled = 0; |
| mDNSexport int mDNS_PacketLoggingEnabled = 0; |
| |
| #if MDNS_DEBUGMSGS |
| mDNSexport int mDNS_DebugMode = mDNStrue; |
| #else |
| mDNSexport int mDNS_DebugMode = mDNSfalse; |
| #endif |
| |
| // Note, this uses mDNS_vsnprintf instead of standard "vsnprintf", because mDNS_vsnprintf knows |
| // how to print special data types like IP addresses and length-prefixed domain names |
| #if MDNS_DEBUGMSGS > 1 |
| mDNSexport void verbosedebugf_(const char *format, ...) |
| { |
| char buffer[512]; |
| va_list ptr; |
| va_start(ptr,format); |
| buffer[mDNS_vsnprintf(buffer, sizeof(buffer), format, ptr)] = 0; |
| va_end(ptr); |
| mDNSPlatformWriteDebugMsg(buffer); |
| } |
| #endif |
| |
| // Log message with default "mDNSResponder" ident string at the start |
| mDNSlocal void LogMsgWithLevelv(mDNSLogLevel_t logLevel, const char *format, va_list ptr) |
| { |
| char buffer[512]; |
| buffer[mDNS_vsnprintf((char *)buffer, sizeof(buffer), format, ptr)] = 0; |
| mDNSPlatformWriteLogMsg(ProgramName, buffer, logLevel); |
| } |
| |
| #define LOG_HELPER_BODY(L) \ |
| { \ |
| va_list ptr; \ |
| va_start(ptr,format); \ |
| LogMsgWithLevelv(L, format, ptr); \ |
| va_end(ptr); \ |
| } |
| |
| // see mDNSDebug.h |
| #if !MDNS_HAS_VA_ARG_MACROS |
| void debug_noop(const char *format, ...) { (void) format; } |
| void LogMsg_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_MSG) |
| void LogOperation_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_OPERATION) |
| void LogSPS_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_SPS) |
| void LogInfo_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_INFO) |
| #endif |
| |
| #if MDNS_DEBUGMSGS |
| void debugf_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_DEBUG) |
| #endif |
| |
| // Log message with default "mDNSResponder" ident string at the start |
| mDNSexport void LogMsgWithLevel(mDNSLogLevel_t logLevel, const char *format, ...) |
| LOG_HELPER_BODY(logLevel) |