forked from Archive/PX4-Autopilot
90 lines
4.2 KiB
C
90 lines
4.2 KiB
C
/****************************************************************************
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*
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* Copyright (C) 2012 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file err.h
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*
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* Simple error/warning functions, heavily inspired by the BSD functions of
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* the same names.
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*
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* The err() and warn() family of functions display a formatted error
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* message on the standard error output. In all cases, the last
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* component of the program name, a colon character, and a space are
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* output. If the fmt argument is not NULL, the printf(3)-like formatted
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* error message is output. The output is terminated by a newline
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* character.
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*
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* The err(), errc(), verr(), verrc(), warn(), warnc(), vwarn(), and
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* vwarnc() functions append an error message obtained from strerror(3)
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* based on a supplied error code value or the global variable errno,
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* preceded by another colon and space unless the fmt argument is NULL.
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*
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* In the case of the errc(), verrc(), warnc(), and vwarnc() functions,
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* the code argument is used to look up the error message.
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*
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* The err(), verr(), warn(), and vwarn() functions use the global
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* variable errno to look up the error message.
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*
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* The errx() and warnx() functions do not append an error message.
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*
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* The err(), verr(), errc(), verrc(), errx(), and verrx() functions do
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* not return, but exit with the value of the argument eval.
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*
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*/
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#ifndef _SYSTEMLIB_ERR_H
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#define _SYSTEMLIB_ERR_H
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#include <stdarg.h>
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__BEGIN_DECLS
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__EXPORT const char *getprogname(void);
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__EXPORT void err(int eval, const char *fmt, ...) __attribute__((noreturn, format(printf, 2, 3)));
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__EXPORT void verr(int eval, const char *fmt, va_list) __attribute__((noreturn, format(printf, 2, 0)));
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__EXPORT void errc(int eval, int code, const char *fmt, ...) __attribute__((noreturn, format(printf, 3, 4)));
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__EXPORT void verrc(int eval, int code, const char *fmt, va_list) __attribute__((noreturn, format(printf, 3, 0)));
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__EXPORT void errx(int eval, const char *fmt, ...) __attribute__((noreturn, format(printf, 2, 3)));
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__EXPORT void verrx(int eval, const char *fmt, va_list) __attribute__((noreturn, format(printf, 2, 0)));
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__EXPORT void warn(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
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__EXPORT void vwarn(const char *fmt, va_list) __attribute__((format(printf, 1, 0)));
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__EXPORT void warnc(int code, const char *fmt, ...) __attribute__((format(printf, 2, 3)));
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__EXPORT void vwarnc(int code, const char *fmt, va_list) __attribute__((format(printf, 2, 0)));
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__EXPORT void warnx(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
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__EXPORT void vwarnx(const char *fmt, va_list) __attribute__((format(printf, 1, 0)));
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__END_DECLS
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#endif
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