126 lines
4.7 KiB
C
126 lines
4.7 KiB
C
#ifndef __mDNSDebug_h
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#define __mDNSDebug_h
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#include <stdarg.h>
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#define MDNS_CHECK_PRINTF_STYLE_FUNCTIONS 0
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typedef enum {
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MDNS_LOG_MSG,
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MDNS_LOG_OPERATION,
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MDNS_LOG_SPS,
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MDNS_LOG_INFO,
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MDNS_LOG_DEBUG,
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} mDNSLogLevel_t;
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// Set this symbol to 1 to answer remote queries for our Address, reverse mapping PTR, and HINFO records
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#define ANSWER_REMOTE_HOSTNAME_QUERIES 0
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// Set this symbol to 1 to do extra debug checks on malloc() and free()
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// Set this symbol to 2 to write a log message for every malloc() and free()
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//#define MACOSX_MDNS_MALLOC_DEBUGGING 1
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//#define ForceAlerts 1
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//#define LogTimeStamps 1
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// Developer-settings section ends here
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#if MDNS_CHECK_PRINTF_STYLE_FUNCTIONS
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#define IS_A_PRINTF_STYLE_FUNCTION(F,A) __attribute__ ((format(printf,F,A)))
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#else
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#define IS_A_PRINTF_STYLE_FUNCTION(F,A)
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#endif
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// Variable argument macro support. Use ANSI C99 __VA_ARGS__ where possible. Otherwise, use the next best thing.
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#if (defined(__GNUC__))
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#if ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 2)))
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#define MDNS_C99_VA_ARGS 1
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#define MDNS_GNU_VA_ARGS 0
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#else
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#define MDNS_C99_VA_ARGS 0
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#define MDNS_GNU_VA_ARGS 1
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#endif
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#define MDNS_HAS_VA_ARG_MACROS 1
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#elif (_MSC_VER >= 1400) // Visual Studio 2005 and later
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#define MDNS_C99_VA_ARGS 1
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#define MDNS_GNU_VA_ARGS 0
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#define MDNS_HAS_VA_ARG_MACROS 1
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#elif (defined(__MWERKS__))
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#define MDNS_C99_VA_ARGS 1
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#define MDNS_GNU_VA_ARGS 0
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#define MDNS_HAS_VA_ARG_MACROS 1
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#else
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#define MDNS_C99_VA_ARGS 0
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#define MDNS_GNU_VA_ARGS 0
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#define MDNS_HAS_VA_ARG_MACROS 0
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#endif
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#if (MDNS_HAS_VA_ARG_MACROS)
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#if (MDNS_C99_VA_ARGS)
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#define debug_noop( ... ) ((void)0)
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#define LogMsg( ... ) LogMsgWithLevel(MDNS_LOG_MSG, __VA_ARGS__)
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#define LogOperation( ... ) do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_OPERATION, __VA_ARGS__); } while (0)
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#define LogSPS( ... ) do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_SPS, __VA_ARGS__); } while (0)
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#define LogInfo( ... ) do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_INFO, __VA_ARGS__); } while (0)
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#elif (MDNS_GNU_VA_ARGS)
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#define debug_noop( ARGS... ) ((void)0)
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#define LogMsg( ARGS... ) LogMsgWithLevel(MDNS_LOG_MSG, ARGS)
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#define LogOperation( ARGS... ) do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_OPERATION, ARGS); } while (0)
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#define LogSPS( ARGS... ) do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_SPS, ARGS); } while (0)
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#define LogInfo( ARGS... ) do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_INFO, ARGS); } while (0)
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#else
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#error Unknown variadic macros
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#endif
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#else
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// If your platform does not support variadic macros, you need to define the following variadic functions.
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// See mDNSShared/mDNSDebug.c for sample implementation
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#define debug_noop 1 ? (void)0 : (void)
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#define LogMsg LogMsg_
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#define LogOperation (mDNS_LoggingEnabled == 0) ? ((void)0) : LogOperation_
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#define LogSPS (mDNS_LoggingEnabled == 0) ? ((void)0) : LogSPS_
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#define LogInfo (mDNS_LoggingEnabled == 0) ? ((void)0) : LogInfo_
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extern void LogMsg_(const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(1, 2);
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extern void LogOperation_(const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(1, 2);
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extern void LogSPS_(const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(1, 2);
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extern void LogInfo_(const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(1, 2);
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#endif
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#if MDNS_DEBUGMSGS
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#define debugf debugf_
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extern void debugf_(const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(1, 2);
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#else
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#define debugf debug_noop
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#endif
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#if MDNS_DEBUGMSGS > 1
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#define verbosedebugf verbosedebugf_
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extern void verbosedebugf_(const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(1, 2);
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#else
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#define verbosedebugf debug_noop
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#endif
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extern int mDNS_LoggingEnabled;
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extern int mDNS_PacketLoggingEnabled;
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extern int mDNS_DebugMode; // If non-zero, LogMsg() writes to stderr instead of syslog
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extern const char ProgramName[];
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extern void LogMsgWithLevel(mDNSLogLevel_t logLevel, const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(2, 3);
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// LogMsgNoIdent needs to be fixed so that it logs without the ident prefix like it used to
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// (or completely overhauled to use the new "log to a separate file" facility)
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#define LogMsgNoIdent LogMsg
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#if APPLE_OSX_mDNSResponder && MACOSX_MDNS_MALLOC_DEBUGGING >= 1
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extern void *mallocL(char *msg, unsigned int size);
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extern void freeL(char *msg, void *x);
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extern void LogMemCorruption(const char *format, ...);
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extern void uds_validatelists(void);
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extern void udns_validatelists(void *const v);
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#else
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#define mallocL(X,Y) malloc(Y)
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#define freeL(X,Y) free(Y)
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#endif
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#endif
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