1 /*
2  * This is free and unencumbered software released into the public domain.
3  *
4  * Anyone is free to copy, modify, publish, use, compile, sell, or
5  * distribute this software, either in source code form or as a compiled
6  * binary, for any purpose, commercial or non-commercial, and by any
7  * means.
8  */
9 
10 #define LOG_ATTR_PRINTF(A, B) __attribute__((__format__ (printf, A, B)))
11 struct logger {
12 	__dead void (*fatal)(int, const char *, ...)	LOG_ATTR_PRINTF(2, 3);
13 	__dead void (*fatalx)(int, const char *, ...)	LOG_ATTR_PRINTF(2, 3);
14 	void (*warn)(const char *, ...)			LOG_ATTR_PRINTF(1, 2);
15 	void (*warnx)(const char *, ...)		LOG_ATTR_PRINTF(1, 2);
16 	void (*info)(const char *, ...)			LOG_ATTR_PRINTF(1, 2);
17 	void (*debug)(const char *, ...)		LOG_ATTR_PRINTF(1, 2);
18 };
19 #undef LOG_ATTR_PRINTF
20 
21 extern const struct logger *logger, syslogger, dbglogger;
22 
23 #define fatal(...)	logger->fatal(1, __VA_ARGS__)
24 #define fatalx(...)	logger->fatalx(1, __VA_ARGS__)
25 #define log_warn(...)	logger->warn(__VA_ARGS__)
26 #define log_warnx(...)	logger->warnx(__VA_ARGS__)
27 #define log_info(...)	logger->info(__VA_ARGS__)
28 #define log_debug(...)	logger->debug(__VA_ARGS__)
29 
30 void	log_init(int, int);
31 void	log_setverbose(int);