src/common/err.h
/* $Id$ */
/*
* err.h
*
* Adapted from OpenBSD libc *err* *warn* code.
*
* Copyright (c) 2001-2010 Aaron Turner.
*
* Copyright (c) 2013-2022 Fred Klassen - AppNeta
*
* Copyright (c) 2000 Dug Song <dugsong@monkey.org>
*
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)err.h 8.1 (Berkeley) 6/2/93
*/
#pragma once
#include "defines.h"
#include <stdlib.h>
#ifdef DEBUG
extern int debug;
#endif
/*
* We define the following functions for reporting errors, warnings and debug messages:
* err() - Fatal error. Pass exit code followed by static string
* errx() - Fatal error. Pass exit code, format string, one or more variables
* warn() - Warning. Pass static string
* warnx() - Warning. Pass format string, one or more variables
* dbg() - Debug. Debug level to trigger, static string
* dbgx() - Debug. Debug level to trigger, format string, one or more variables
* notice() - Informational only via stderr, format string, one or more variables
*/
/* gcc accepts __FUNCTION__, but C99 says use __func__. Necessary for SunPro compiler */
#if !defined(__GNUC__) && !defined(__FUNCTION__)
# define __FUNCTION__ __func__
#endif
void notice(const char *fmt, ...);
#ifdef DEBUG /* then err, errx, warn, warnx print file, func, line */
#define dbg(x, y) do { \
if (debug >= x) \
fprintf(stderr, "DEBUG%d in %s:%s() line %d: %s\n", x, __FILE__, __FUNCTION__, __LINE__, y); \
} while(0)
#define dbgx(x, y, ...) do { \
if (debug >= x) { \
fprintf(stderr, "DEBUG%d in %s:%s() line %d: " y "\n", x, __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__); \
} \
} while(0)
#define warn(x) fprintf(stderr, "Warning in %s:%s() line %d:\n%s\n", __FILE__, __FUNCTION__, __LINE__, x)
#define warnx(x, ...) fprintf(stderr, "Warning in %s:%s() line %d:\n" x "\n", __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__)
#define err(x, y) do { \
fprintf(stderr, "\nFatal Error in %s:%s() line %d:\n%s\n", __FILE__, __FUNCTION__, __LINE__, y); \
fflush(NULL); \
exit(x); \
} while (0)
#define errx(x, y, ...) do {\
fprintf(stderr, "\nFatal Error in %s:%s() line %d:\n " y "\n", __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__); \
fflush(NULL); \
exit(x); \
} while (0)
#define err_no_exit(y) do { \
fprintf(stderr, "\nFatal Error in %s:%s() line %d:\n%s\n", __FILE__, __FUNCTION__, __LINE__, y); \
fflush(NULL); \
} while (0)
#define err_no_exitx(y, ...) do {\
fprintf(stderr, "\nFatal Error in %s:%s() line %d:\n " y "\n", __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__); \
fflush(NULL); \
} while (0)
#else /* no detailed DEBUG info */
/* dbg() and dbgx() become no-ops for non-DEBUG builds */
#define dbg(x, y) { }
#define dbgx(x, y, ...) { }
#define warn(x) fprintf(stderr, "Warning: %s\n", x)
#define warnx(x, ...) fprintf(stderr, "Warning: " x "\n", __VA_ARGS__)
#define err(x, y) do {\
fprintf(stderr, "\nFatal Error:\n%s\n", y); \
fflush(NULL); \
exit(x); \
} while(0)
#define errx(x, y, ...) do {\
fprintf(stderr, "\nFatal Error: " y "\n", __VA_ARGS__); \
fflush(NULL); \
exit(x); \
} while (0)
#define err_no_exit(y) do {\
fprintf(stderr, "\nFatal Error:\n%s\n", y); \
fflush(NULL); \
} while(0)
#define err_no_exitx(y, ...) do {\
fprintf(stderr, "\nFatal Error: " y "\n", __VA_ARGS__); \
fflush(NULL); \
} while (0)
#endif /* DEBUG */