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 #ifdef LOG_AUTHPRIV 26 SYSLOG_FACILITY_AUTHPRIV, 27 #endif 28 SYSLOG_FACILITY_LOCAL0, 29 SYSLOG_FACILITY_LOCAL1, 30 SYSLOG_FACILITY_LOCAL2, 31 SYSLOG_FACILITY_LOCAL3, 32 SYSLOG_FACILITY_LOCAL4, 33 SYSLOG_FACILITY_LOCAL5, 34 SYSLOG_FACILITY_LOCAL6, 35 SYSLOG_FACILITY_LOCAL7, 36 SYSLOG_FACILITY_NOT_SET = -1 37 } SyslogFacility; 38 39 typedef enum { 40 SYSLOG_LEVEL_QUIET, 41 SYSLOG_LEVEL_FATAL, 42 SYSLOG_LEVEL_ERROR, 43 SYSLOG_LEVEL_INFO, 44 SYSLOG_LEVEL_VERBOSE, 45 SYSLOG_LEVEL_DEBUG1, 46 SYSLOG_LEVEL_DEBUG2, 47 SYSLOG_LEVEL_DEBUG3, 48 SYSLOG_LEVEL_NOT_SET = -1 49 } LogLevel; 50 51 typedef void (log_handler_fn)(LogLevel, const char *, void *); 52 53 void log_init(char *, LogLevel, SyslogFacility, int); 54 LogLevel log_level_get(void); 55 int log_change_level(LogLevel); 56 int log_is_on_stderr(void); 57 void log_redirect_stderr_to(const char *); 58 59 SyslogFacility log_facility_number(char *); 60 const char * log_facility_name(SyslogFacility); 61 LogLevel log_level_number(char *); 62 const char * log_level_name(LogLevel); 63 64 void fatal(const char *, ...) __attribute__((noreturn)) 65 __attribute__((format(printf, 1, 2))); 66 void error(const char *, ...) __attribute__((format(printf, 1, 2))); 67 void sigdie(const char *, ...) __attribute__((noreturn)) 68 __attribute__((format(printf, 1, 2))); 69 void logdie(const char *, ...) __attribute__((noreturn)) 70 __attribute__((format(printf, 1, 2))); 71 void logit(const char *, ...) __attribute__((format(printf, 1, 2))); 72 void verbose(const char *, ...) __attribute__((format(printf, 1, 2))); 73 void debug(const char *, ...) __attribute__((format(printf, 1, 2))); 74 void debug2(const char *, ...) __attribute__((format(printf, 1, 2))); 75 void debug3(const char *, ...) __attribute__((format(printf, 1, 2))); 76 77 78 void set_log_handler(log_handler_fn *, void *); 79 void do_log2(LogLevel, const char *, ...) 80 __attribute__((format(printf, 2, 3))); 81 void do_log(LogLevel, const char *, va_list); 82 void cleanup_exit(int) __attribute__((noreturn)); 83 #endif 84