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/*
* Copyright (c) 2003-2019 Apple Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#if defined(WIN32) || defined(EFI32) || defined(EFI64) || defined(EFIX64)
// Need to add Windows/EFI syslog support here
#define LOG_PID 0x01
#define LOG_CONS 0x02
#define LOG_PERROR 0x20
#else
#include <syslog.h>
#endif
#include "mDNSEmbeddedAPI.h"
mDNSexport int mDNS_LoggingEnabled = 0;
mDNSexport int mDNS_PacketLoggingEnabled = 0;
mDNSexport int mDNS_McastLoggingEnabled = 0;
mDNSexport int mDNS_McastTracingEnabled = 0;
#if MDNS_DEBUGMSGS
mDNSexport int mDNS_DebugMode = mDNStrue;
#else
mDNSexport int mDNS_DebugMode = mDNSfalse;
#endif
// Note, this uses mDNS_vsnprintf instead of standard "vsnprintf", because mDNS_vsnprintf knows
// how to print special data types like IP addresses and length-prefixed domain names
#if MDNS_DEBUGMSGS > 1
mDNSexport void verbosedebugf_(const char *format, ...)
{
char buffer[512];
va_list args;
va_start(args, format);
buffer[mDNS_vsnprintf(buffer, sizeof(buffer), format, args)] = 0;
va_end(args);
mDNSPlatformWriteDebugMsg(buffer);
}
#endif
// Log message with default "mDNSResponder" ident string at the start
#if MDNSRESPONDER_SUPPORTS(APPLE, OS_LOG)
mDNSlocal void LogMsgWithLevelv(os_log_t category, os_log_type_t level, const char *format, va_list args)
{
char buffer[512];
mDNS_vsnprintf(buffer, (mDNSu32)sizeof(buffer), format, args);
os_log_with_type(category ? category : mDNSLogCategory_Default, level, "%{private}s", buffer);
}
#else
mDNSlocal void LogMsgWithLevelv(const char *category, mDNSLogLevel_t level, const char *format, va_list args)
{
char buffer[512];
char *dst = buffer;
const char *const lim = &buffer[512];
if (category) mDNS_snprintf_add(&dst, lim, "%s: ", category);
mDNS_vsnprintf(dst, (mDNSu32)(lim - dst), format, args);
mDNSPlatformWriteLogMsg(ProgramName, buffer, level);
}
#endif
#define LOG_HELPER_BODY(CATEGORY, LEVEL) \
{ \
va_list args; \
va_start(args,format); \
LogMsgWithLevelv(CATEGORY, LEVEL, format, args); \
va_end(args); \
}
// see mDNSDebug.h
#if !MDNS_HAS_VA_ARG_MACROS
void LogMsg_(const char *format, ...) LOG_HELPER_BODY(NULL, MDNS_LOG_INFO)
void LogOperation_(const char *format, ...) LOG_HELPER_BODY(NULL, MDNS_LOG_INFO)
void LogSPS_(const char *format, ...) LOG_HELPER_BODY(NULL, MDNS_LOG_INFO)
void LogInfo_(const char *format, ...) LOG_HELPER_BODY(NULL, MDNS_LOG_INFO)
void LogDebug_(const char *format, ...) LOG_HELPER_BODY(NULL, MDNS_LOG_DEBUG)
#endif
#if MDNS_DEBUGMSGS
void debugf_(const char *format, ...) LOG_HELPER_BODY(MDNS_LOG_DEBUG)
#endif
// Log message with default "mDNSResponder" ident string at the start
mDNSexport void LogMsgWithLevel(mDNSLogCategory_t category, mDNSLogLevel_t level, const char *format, ...)
LOG_HELPER_BODY(category, level)
mDNSexport void LogToFD(int fd, const char *format, ...)
{
va_list args;
va_start(args, format);
#if APPLE_OSX_mDNSResponder
char buffer[1024];
buffer[mDNS_vsnprintf(buffer, (mDNSu32)sizeof(buffer), format, args)] = '\0';
dprintf(fd, "%s\n", buffer);
#else
(void)fd;
LogMsgWithLevelv(NULL, MDNS_LOG_INFO, format, args);
#endif
va_end(args);
}
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