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