41c5738fe6
In order to reduce boilerplate for the cases when __func__ is desired to be printed. * error_prints.h (error_func_msg, perror_func_msg, debug_func_msg, debug_func_perror_msg, error_func_msg_and_die, perror_func_msg_and_die): New macro definitions.
80 lines
3.2 KiB
C
80 lines
3.2 KiB
C
/*
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* This file contains error printing functions.
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* These functions can be used by various binaries included in the strace
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* package. Variable 'program_invocation_name' and function 'die()'
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* have to be defined globally.
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*
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* Copyright (c) 2001-2017 The strace developers.
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* 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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* 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 the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef STRACE_ERROR_PRINTS_H
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#define STRACE_ERROR_PRINTS_H
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#include <stdbool.h>
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#include "gcc_compat.h"
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extern bool debug_flag;
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void die(void) ATTRIBUTE_NORETURN;
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void error_msg(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2));
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void perror_msg(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2));
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void perror_msg_and_die(const char *fmt, ...)
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ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
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void error_msg_and_help(const char *fmt, ...)
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ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
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void error_msg_and_die(const char *fmt, ...)
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ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
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/* Wrappers for if (debug_flag) error_msg(...) */
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#define debug_msg(...) \
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do { \
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if (debug_flag) \
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error_msg(__VA_ARGS__); \
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} while (0)
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#define debug_perror_msg(...) \
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do { \
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if (debug_flag) \
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perror_msg(__VA_ARGS__); \
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} while (0)
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/* Simple wrappers for providing function name in error messages */
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#define error_func_msg(fmt_, ...) \
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error_msg("%s: " fmt_, __func__, ##__VA_ARGS__)
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#define perror_func_msg(fmt_, ...) \
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perror_msg("%s: " fmt_, __func__, ##__VA_ARGS__)
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#define debug_func_msg(fmt_, ...) \
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debug_msg("%s: " fmt_, __func__, ##__VA_ARGS__)
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#define debug_func_perror_msg(fmt_, ...) \
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debug_perror_msg("%s: " fmt_, __func__, ##__VA_ARGS__)
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#define error_func_msg_and_die(fmt_, ...) \
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error_msg_and_die("%s: " fmt_, __func__, ##__VA_ARGS__)
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#define perror_func_msg_and_die(fmt_, ...) \
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perror_msg_and_die("%s: " fmt_, __func__, ##__VA_ARGS__)
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#endif /* !STRACE_ERROR_PRINTS_H */
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