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
verbosedebugf_(const char * format,...)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
LogMsgWithLevelv(mDNSLogLevel_t logLevel,const char * format,va_list ptr)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