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/*
 * Copyright (c) 2004, 2010-2013 Todd C. Miller <Todd.Miller@courtesan.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _SUDO_FATAL_H_
#define	_SUDO_FATAL_H_

#include <stdarg.h>
#include <setjmp.h>

/*
 * We wrap fatal/fatalx and warning/warningx so that the same output can
 * go to the debug file, if there is one.
 */
#if defined(SUDO_ERROR_WRAP) && SUDO_ERROR_WRAP == 0
# if defined(__GNUC__) && __GNUC__ == 2
#  define fatal(fmt...) fatal_nodebug(fmt)
#  define fatalx(fmt...) fatalx_nodebug(fmt)
#  define warning(fmt...) warning_nodebug(fmt)
#  define warningx(fmt...) warningx_nodebug(fmt)
# else
#  define fatal(...) fatal_nodebug(__VA_ARGS__)
#  define fatalx(...) fatalx_nodebug(__VA_ARGS__)
#  define warning(...) warning_nodebug(__VA_ARGS__)
#  define warningx(...) warningx_nodebug(__VA_ARGS__)
# endif /* __GNUC__ == 2 */
# define vfatal(fmt, ap) fatal_nodebug((fmt), (ap))
# define vfatalx(fmt, ap) fatalx_nodebug((fmt), (ap))
# define vwarning(fmt, ap) warning_nodebug((fmt), (ap))
# define vwarningx(fmt, ap) warningx_nodebug((fmt), (ap))
#else /* SUDO_ERROR_WRAP */
# if defined(__GNUC__) && __GNUC__ == 2
#  define fatal(fmt...) do {					       \
    sudo_debug_printf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO|SUDO_DEBUG_ERRNO|sudo_debug_subsys, \
	fmt);								       \
    fatal_nodebug(fmt);						       \
} while (0)
#  define fatalx(fmt...) do {					       \
    sudo_debug_printf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO|sudo_debug_subsys, fmt);	       \
    fatalx_nodebug(fmt);					       \
} while (0)
#  define warning(fmt...) do {						       \
    sudo_debug_printf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO|SUDO_DEBUG_ERRNO|sudo_debug_subsys, \
	fmt);								       \
    warning_nodebug(fmt);						       \
} while (0)
#  define warningx(fmt...) do {						       \
    sudo_debug_printf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO|sudo_debug_subsys, fmt);	       \
    warningx_nodebug(fmt);						       \
} while (0)
# else
#  define fatal(...) do {						       \
    sudo_debug_printf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO|SUDO_DEBUG_ERRNO|sudo_debug_subsys, \
	__VA_ARGS__);							       \
    fatal_nodebug(__VA_ARGS__);					       \
} while (0)
#  define fatalx(...) do {					       \
    sudo_debug_printf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO|sudo_debug_subsys, __VA_ARGS__);    \
    fatalx_nodebug(__VA_ARGS__);				       \
} while (0)
#  define warning(...) do {						       \
    sudo_debug_printf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_WARN|SUDO_DEBUG_LINENO|SUDO_DEBUG_ERRNO|sudo_debug_subsys,  \
	__VA_ARGS__);							       \
    warning_nodebug(__VA_ARGS__);					       \
} while (0)
#  define warningx(...) do {						       \
    sudo_debug_printf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_WARN|SUDO_DEBUG_LINENO|sudo_debug_subsys, __VA_ARGS__);     \
    warningx_nodebug(__VA_ARGS__);					       \
} while (0)
# endif /* __GNUC__ == 2 */
# define vfatal(fmt, ap) do {					       \
    sudo_debug_vprintf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO|SUDO_DEBUG_ERRNO|sudo_debug_subsys, \
	(fmt), (ap));							       \
    vfatal_nodebug((fmt), (ap));				       \
} while (0)
# define vfatalx(fmt, ap) do {					       \
    sudo_debug_vprintf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO|sudo_debug_subsys, (fmt), (ap));    \
    vfatalx_nodebug((fmt), (ap));				       \
} while (0)
# define vwarning(fmt, ap) do {						       \
    sudo_debug_vprintf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_WARN|SUDO_DEBUG_LINENO|SUDO_DEBUG_ERRNO|sudo_debug_subsys,  \
	(fmt), (ap));							       \
    vwarning_nodebug((fmt), (ap));					       \
    warning_restore_locale();						       \
} while (0)
# define vwarningx(fmt, ap) do {					       \
    sudo_debug_vprintf2(__func__, __FILE__, __LINE__,			       \
	SUDO_DEBUG_WARN|SUDO_DEBUG_LINENO|sudo_debug_subsys, (fmt), (ap));     \
    vwarningx_nodebug((fmt), (ap));					       \
} while (0)
#endif /* SUDO_ERROR_WRAP */

#if defined(__GNUC__) && __GNUC__ == 2
# define fatal_nodebug(fmt...) do {				       \
    warning_set_locale();						       \
    fatal2(fmt);						       \
} while (0)
# define fatalx_nodebug(fmt...) do {				       \
    warning_set_locale();						       \
    fatalx2(fmt);						       \
} while (0)
# define warning_nodebug(fmt...) do {					       \
    warning_set_locale();						       \
    warning2(fmt);							       \
    warning_restore_locale();						       \
} while (0)
# define warningx_nodebug(fmt...) do {					       \
    warning_set_locale();						       \
    warningx2(fmt);							       \
    warning_restore_locale();						       \
} while (0)
#else
# define fatal_nodebug(...) do {					       \
    warning_set_locale();						       \
    fatal2(__VA_ARGS__);					       \
} while (0)
# define fatalx_nodebug(...) do {					       \
    warning_set_locale();						       \
    fatalx2(__VA_ARGS__);					       \
} while (0)
# define warning_nodebug(...) do {					       \
    warning_set_locale();						       \
    warning2(__VA_ARGS__);						       \
    warning_restore_locale();						       \
} while (0)
# define warningx_nodebug(...) do {					       \
    warning_set_locale();						       \
    warningx2(__VA_ARGS__);						       \
    warning_restore_locale();						       \
} while (0)
#endif /* __GNUC__ == 2 */
#define vfatal_nodebug(fmt, ap) do {				       \
    warning_set_locale();						       \
    vfatal2((fmt), (ap));					       \
} while (0)
#define vfatalx_nodebug(fmt, ap) do {				       \
    warning_set_locale();						       \
    vfatalx2((fmt), (ap));					       \
} while (0)
#define vwarning_nodebug(fmt, ap) do {					       \
    warning_set_locale();						       \
    vwarning2((fmt), (ap));						       \
    warning_restore_locale();						       \
} while (0)
#define vwarningx_nodebug(fmt, ap) do {					       \
    warning_set_locale();						       \
    vwarningx2((fmt), (ap));						       \
    warning_restore_locale();						       \
} while (0)

#define fatal_setjmp()		(fatal_enable_setjmp(), sigsetjmp(fatal_jmp, 1))
#define fatal_longjmp(val)	siglongjmp(fatal_jmp, val)

extern int (*sudo_printf)(int msg_type, const char *fmt, ...);
extern sigjmp_buf fatal_jmp;

int     fatal_callback_register(void (*func)(void));
void	fatal_disable_setjmp(void);
void	fatal_enable_setjmp(void);
void	fatal2(const char *, ...) __printf0like(1, 2) __attribute__((__noreturn__));
void	fatalx2(const char *, ...) __printflike(1, 2) __attribute__((__noreturn__));
void	vfatal2(const char *, va_list ap) __printf0like(1, 0) __attribute__((__noreturn__));
void	vfatalx2(const char *, va_list ap) __printflike(1, 0) __attribute__((__noreturn__));
void	warning2(const char *, ...) __printf0like(1, 2);
void	warningx2(const char *, ...) __printflike(1, 2);
void	vwarning2(const char *, va_list ap) __printf0like(1, 0);
void	vwarningx2(const char *, va_list ap) __printflike(1, 0);
void    warning_set_locale(void);
void    warning_restore_locale(void);

#endif /* _SUDO_FATAL_H_ */