1 /* $OpenBSD: log.h,v 1.24 2019/09/06 04:53:27 djm Exp $ */ 2 3 /* 4 * Author: Tatu Ylonen <ylo@cs.hut.fi> 5 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 6 * All rights reserved 7 * 8 * As far as I am concerned, the code I have written for this software 9 * can be used freely for any purpose. Any derived versions of this 10 * software must be clearly marked as such, and if the derived work is 11 * incompatible with the protocol description in the RFC file, it must be 12 * called by a name other than "ssh" or "Secure Shell". 13 */ 14 15 #ifndef SSH_LOG_H 16 #define SSH_LOG_H 17 18 #include <stdarg.h> /* va_list */ 19 20 /* Supported syslog facilities and levels. */ 21 typedef enum { 22 SYSLOG_FACILITY_DAEMON, 23 SYSLOG_FACILITY_USER, 24 SYSLOG_FACILITY_AUTH, 25 SYSLOG_FACILITY_LOCAL0, 26 SYSLOG_FACILITY_LOCAL1, 27 SYSLOG_FACILITY_LOCAL2, 28 SYSLOG_FACILITY_LOCAL3, 29 SYSLOG_FACILITY_LOCAL4, 30 SYSLOG_FACILITY_LOCAL5, 31 SYSLOG_FACILITY_LOCAL6, 32 SYSLOG_FACILITY_LOCAL7, 33 SYSLOG_FACILITY_NOT_SET = -1 34 } SyslogFacility; 35 36 typedef enum { 37 SYSLOG_LEVEL_QUIET, 38 SYSLOG_LEVEL_FATAL, 39 SYSLOG_LEVEL_ERROR, 40 SYSLOG_LEVEL_INFO, 41 SYSLOG_LEVEL_VERBOSE, 42 SYSLOG_LEVEL_DEBUG1, 43 SYSLOG_LEVEL_DEBUG2, 44 SYSLOG_LEVEL_DEBUG3, 45 SYSLOG_LEVEL_NOT_SET = -1 46 } LogLevel; 47 48 typedef void (log_handler_fn)(LogLevel, const char *, void *); 49 50 void log_init(char *, LogLevel, SyslogFacility, int); 51 LogLevel log_level_get(void); 52 int log_change_level(LogLevel); 53 int log_is_on_stderr(void); 54 void log_redirect_stderr_to(const char *); 55 56 SyslogFacility log_facility_number(char *); 57 const char * log_facility_name(SyslogFacility); 58 LogLevel log_level_number(char *); 59 const char * log_level_name(LogLevel); 60 61 void fatal(const char *, ...) __attribute__((noreturn)) 62 __attribute__((format(printf, 1, 2))); 63 void error(const char *, ...) __attribute__((format(printf, 1, 2))); 64 void sigdie(const char *, ...) __attribute__((noreturn)) 65 __attribute__((format(printf, 1, 2))); 66 void logdie(const char *, ...) __attribute__((noreturn)) 67 __attribute__((format(printf, 1, 2))); 68 void logit(const char *, ...) __attribute__((format(printf, 1, 2))); 69 void verbose(const char *, ...) __attribute__((format(printf, 1, 2))); 70 void debug(const char *, ...) __attribute__((format(printf, 1, 2))); 71 void debug2(const char *, ...) __attribute__((format(printf, 1, 2))); 72 void debug3(const char *, ...) __attribute__((format(printf, 1, 2))); 73 74 75 void set_log_handler(log_handler_fn *, void *); 76 void do_log2(LogLevel, const char *, ...) 77 __attribute__((format(printf, 2, 3))); 78 void do_log(LogLevel, const char *, va_list); 79 void cleanup_exit(int) __attribute__((noreturn)); 80 #endif 81