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// TODO - turn off debugging
41mDNSexport int mDNS_LoggingEnabled = 1;
42mDNSexport int mDNS_PacketLoggingEnabled = 0;
43
44#if MDNS_DEBUGMSGS && !defined(__ANDROID__)
45mDNSexport int mDNS_DebugMode = mDNStrue;
46#else
47mDNSexport int mDNS_DebugMode = mDNSfalse;
48#endif
49
50// Note, this uses mDNS_vsnprintf instead of standard "vsnprintf", because mDNS_vsnprintf knows
51// how to print special data types like IP addresses and length-prefixed domain names
52#if MDNS_DEBUGMSGS > 1
53mDNSexport void verbosedebugf_(const char *format, ...)
54	{
55	char buffer[512];
56	va_list ptr;
57	va_start(ptr,format);
58	buffer[mDNS_vsnprintf(buffer, sizeof(buffer), format, ptr)] = 0;
59	va_end(ptr);
60	mDNSPlatformWriteDebugMsg(buffer);
61	}
62#endif
63
64// Log message with default "mDNSResponder" ident string at the start
65mDNSlocal void LogMsgWithLevelv(mDNSLogLevel_t logLevel, const char *format, va_list ptr)
66	{
67	char buffer[512];
68	buffer[mDNS_vsnprintf((char *)buffer, sizeof(buffer), format, ptr)] = 0;
69	mDNSPlatformWriteLogMsg(ProgramName, buffer, logLevel);
70	}
71
72#define LOG_HELPER_BODY(L) \
73	{ \
74	va_list ptr; \
75	va_start(ptr,format); \
76	LogMsgWithLevelv(L, format, ptr); \
77	va_end(ptr); \
78	}
79
80// see mDNSDebug.h
81#if !MDNS_HAS_VA_ARG_MACROS
82void LogMsg_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_MSG)
83void LogOperation_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_OPERATION)
84void LogSPS_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_SPS)
85void LogInfo_(const char *format, ...)      LOG_HELPER_BODY(MDNS_LOG_INFO)
86#endif
87
88#if MDNS_DEBUGMSGS
89void debugf_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_DEBUG)
90#endif
91
92// Log message with default "mDNSResponder" ident string at the start
93mDNSexport void LogMsgWithLevel(mDNSLogLevel_t logLevel, const char *format, ...)
94	LOG_HELPER_BODY(logLevel)
95