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