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// logging.h -- Utility functions for managing log messages
// Copyright (C) 2008-2009 Markus Gutschke <markus@shellinabox.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// In addition to these license terms, the author grants the following
// additional rights:
//
// If you modify this program, or any covered work, by linking or
// combining it with the OpenSSL project's OpenSSL library (or a
// modified version of that library), containing parts covered by the
// terms of the OpenSSL or SSLeay licenses, the author
// grants you additional permission to convey the resulting work.
// Corresponding Source for a non-source form of such a combination
// shall include the source code for the parts of OpenSSL used as well
// as that of the covered work.
//
// You may at your option choose to remove this additional permission from
// the work, or from any part of it.
//
// It is possible to build this program in a way that it loads OpenSSL
// libraries at run-time. If doing so, the following notices are required
// by the OpenSSL and SSLeay licenses:
//
// This product includes software developed by the OpenSSL Project
// for use in the OpenSSL Toolkit. (http://www.openssl.org/)
//
// This product includes cryptographic software written by Eric Young
// (eay@cryptsoft.com)
//
//
// The most up-to-date version of this program is always available from
// http://shellinabox.com
#ifndef LOGGING_H__
#define LOGGING_H__
#include <stdarg.h>
#define MSG_QUIET -1
#define MSG_MESSAGE 0
#define MSG_ERROR 1
#define MSG_WARN 2
#define MSG_INFO 3
#define MSG_DEBUG 4
#define MSG_DEFAULT MSG_ERROR
#define check(x) do { \
if (!(x)) \
fatal("Check failed at "__FILE__":%d in %s(): %s", \
__LINE__, __func__, #x); \
} while (0)
#define dcheck(x) do { \
if (!(x)) \
(logIsDebug() ? fatal : error)( \
"Check failed at "__FILE__":%d in %s(): %s", \
__LINE__, __func__, #x); \
} while (0)
void debug(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
void info(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
void warn(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
void error(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
void message(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
void fatal(const char *fmt, ...) __attribute__((format(printf, 1, 2),
noreturn));
int logIsDebug(void);
int logIsInfo(void);
int logIsWarn(void);
int logIsError(void);
int logIsMessage(void);
int logIsQuiet(void);
int logIsDefault(void);
int logIsVerbose(void);
void logSetLogLevel(int level);
char *vStringPrintf(char *buf, const char *fmt, va_list ap);
char *stringPrintf(char *buf, const char *fmt, ...)
__attribute__((format(printf, 2, 3)));
char *stringPrintfUnchecked(char *buf, const char *fmt, ...);
#endif /* LOGGING_H__ */
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