1 files changed, 76 insertions, 0 deletions

diff --git a/log.h b/log.h
new file mode 100644
index 000000000..4b82ee3e7
--- /dev/null
+++ b/log.h
@@ -0,0 +1,76 @@
+/*
+ * 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
+
+/* 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
+}       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
+}       LogLevel;
+/* Initializes logging. */
+void    log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr);
+
+/* Logging implementation, depending on server or client */
+void    do_log(LogLevel level, const char *fmt, va_list args);
+
+/* name to facility/level */
+SyslogFacility log_facility_number(char *name);
+LogLevel log_level_number(char *name);
+
+/* Output a message to syslog or stderr */
+void    fatal(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    error(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    log(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    verbose(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    debug(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    debug2(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void    debug3(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+
+/* same as fatal() but w/o logging */
+void    fatal_cleanup(void);
+
+/*
+ * Registers a cleanup function to be called by fatal()/fatal_cleanup()
+ * before exiting. It is permissible to call fatal_remove_cleanup for the
+ * function itself from the function.
+ */
+void    fatal_add_cleanup(void (*proc) (void *context), void *context);
+
+/* Removes a cleanup function to be called at fatal(). */
+void    fatal_remove_cleanup(void (*proc) (void *context), void *context);
+
+#endif