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
40mDNSexport int mDNS_LoggingEnabled = 0;
41mDNSexport int mDNS_PacketLoggingEnabled = 0;
42
43#if MDNS_DEBUGMSGS && !defined(__ANDROID__)
44mDNSexport int mDNS_DebugMode = mDNStrue;
45#else
46mDNSexport 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
52mDNSexport 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
64mDNSlocal 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
81void LogMsg_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_MSG)
82void LogOperation_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_OPERATION)
83void LogSPS_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_SPS)
84void LogInfo_(const char *format, ...)      LOG_HELPER_BODY(MDNS_LOG_INFO)
85#endif
86
87#if MDNS_DEBUGMSGS
88void debugf_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_DEBUG)
89#endif
90
91// Log message with default "mDNSResponder" ident string at the start
92mDNSexport void LogMsgWithLevel(mDNSLogLevel_t logLevel, const char *format, ...)
93	LOG_HELPER_BODY(logLevel)
94