1/* -*- Mode: C; tab-width: 4 -*-
2 *
3 * Copyright (c) 2003-2018 Apple 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
18#include "mDNSDebug.h"
19
20#include <stdio.h>
21
22#if defined(WIN32) || defined(EFI32) || defined(EFI64) || defined(EFIX64)
23// Need to add Windows/EFI syslog support here
24#define LOG_PID 0x01
25#define LOG_CONS 0x02
26#define LOG_PERROR 0x20
27#else
28#include <syslog.h>
29#endif
30
31#include "mDNSEmbeddedAPI.h"
32
33mDNSexport int mDNS_LoggingEnabled       = 0;
34mDNSexport int mDNS_PacketLoggingEnabled = 0;
35mDNSexport int mDNS_McastLoggingEnabled  = 0;
36mDNSexport int mDNS_McastTracingEnabled  = 0;
37
38#if MDNS_DEBUGMSGS
39mDNSexport int mDNS_DebugMode = mDNStrue;
40#else
41mDNSexport int mDNS_DebugMode = mDNSfalse;
42#endif
43
44// Note, this uses mDNS_vsnprintf instead of standard "vsnprintf", because mDNS_vsnprintf knows
45// how to print special data types like IP addresses and length-prefixed domain names
46#if MDNS_DEBUGMSGS > 1
47mDNSexport void verbosedebugf_(const char *format, ...)
48{
49    char buffer[512];
50    va_list ptr;
51    va_start(ptr,format);
52    buffer[mDNS_vsnprintf(buffer, sizeof(buffer), format, ptr)] = 0;
53    va_end(ptr);
54    mDNSPlatformWriteDebugMsg(buffer);
55}
56#endif
57
58// Log message with default "mDNSResponder" ident string at the start
59mDNSlocal void LogMsgWithLevelv(mDNSLogLevel_t logLevel, const char *format, va_list ptr)
60{
61    char buffer[512];
62    buffer[mDNS_vsnprintf((char *)buffer, sizeof(buffer), format, ptr)] = 0;
63    mDNSPlatformWriteLogMsg(ProgramName, buffer, logLevel);
64}
65
66#define LOG_HELPER_BODY(L) \
67    { \
68        va_list ptr; \
69        va_start(ptr,format); \
70        LogMsgWithLevelv(L, format, ptr); \
71        va_end(ptr); \
72    }
73
74// see mDNSDebug.h
75#if !MDNS_HAS_VA_ARG_MACROS
76void LogMsg_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_MSG)
77void LogOperation_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_OPERATION)
78void LogSPS_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_SPS)
79void LogInfo_(const char *format, ...)      LOG_HELPER_BODY(MDNS_LOG_INFO)
80void LogDebug_(const char *format, ...)     LOG_HELPER_BODY(MDNS_LOG_DEBUG)
81#endif
82
83#if MDNS_DEBUGMSGS
84void debugf_(const char *format, ...)       LOG_HELPER_BODY(MDNS_LOG_DEBUG)
85#endif
86
87// Log message with default "mDNSResponder" ident string at the start
88mDNSexport void LogMsgWithLevel(mDNSLogLevel_t logLevel, const char *format, ...)
89LOG_HELPER_BODY(logLevel)
90