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-rw-r--r--log.h83
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+/* $OpenBSD: log.h,v 1.24 2019/09/06 04:53:27 djm Exp $ */
+
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ * All rights reserved
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose. Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ */
+
+#ifndef SSH_LOG_H
+#define SSH_LOG_H
+
+#include <stdarg.h> /* va_list */
+
+/* Supported syslog facilities and levels. */
+typedef enum {
+ SYSLOG_FACILITY_DAEMON,
+ SYSLOG_FACILITY_USER,
+ SYSLOG_FACILITY_AUTH,
+#ifdef LOG_AUTHPRIV
+ SYSLOG_FACILITY_AUTHPRIV,
+#endif
+ SYSLOG_FACILITY_LOCAL0,
+ SYSLOG_FACILITY_LOCAL1,
+ SYSLOG_FACILITY_LOCAL2,
+ SYSLOG_FACILITY_LOCAL3,
+ SYSLOG_FACILITY_LOCAL4,
+ SYSLOG_FACILITY_LOCAL5,
+ SYSLOG_FACILITY_LOCAL6,
+ SYSLOG_FACILITY_LOCAL7,
+ SYSLOG_FACILITY_NOT_SET = -1
+} SyslogFacility;
+
+typedef enum {
+ SYSLOG_LEVEL_QUIET,
+ SYSLOG_LEVEL_FATAL,
+ SYSLOG_LEVEL_ERROR,
+ SYSLOG_LEVEL_INFO,
+ SYSLOG_LEVEL_VERBOSE,
+ SYSLOG_LEVEL_DEBUG1,
+ SYSLOG_LEVEL_DEBUG2,
+ SYSLOG_LEVEL_DEBUG3,
+ SYSLOG_LEVEL_NOT_SET = -1
+} LogLevel;
+
+typedef void (log_handler_fn)(LogLevel, const char *, void *);
+
+void log_init(char *, LogLevel, SyslogFacility, int);
+LogLevel log_level_get(void);
+int log_change_level(LogLevel);
+int log_is_on_stderr(void);
+void log_redirect_stderr_to(const char *);
+
+SyslogFacility log_facility_number(char *);
+const char * log_facility_name(SyslogFacility);
+LogLevel log_level_number(char *);
+const char * log_level_name(LogLevel);
+
+void fatal(const char *, ...) __attribute__((noreturn))
+ __attribute__((format(printf, 1, 2)));
+void error(const char *, ...) __attribute__((format(printf, 1, 2)));
+void sigdie(const char *, ...) __attribute__((noreturn))
+ __attribute__((format(printf, 1, 2)));
+void logdie(const char *, ...) __attribute__((noreturn))
+ __attribute__((format(printf, 1, 2)));
+void logit(const char *, ...) __attribute__((format(printf, 1, 2)));
+void verbose(const char *, ...) __attribute__((format(printf, 1, 2)));
+void debug(const char *, ...) __attribute__((format(printf, 1, 2)));
+void debug2(const char *, ...) __attribute__((format(printf, 1, 2)));
+void debug3(const char *, ...) __attribute__((format(printf, 1, 2)));
+
+
+void set_log_handler(log_handler_fn *, void *);
+void do_log2(LogLevel, const char *, ...)
+ __attribute__((format(printf, 2, 3)));
+void do_log(LogLevel, const char *, va_list);
+void cleanup_exit(int) __attribute__((noreturn));
+#endif