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/* error_exit -- print an error message and exit */
/* $Id$ */
/*
* error_exit -- print an error message and exit
*/
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include "stdc.h"
/*****************************************************************************/
/*
* This function prints an error message (formatted via vfprintf(3S)),
* then exits. It does *not* return to its caller. Normally the exit
* is done via exit(2), but optionally it may be done via abort(2) to
* produce a core dump. Despite not actually returning, this function
* is declared as returning an int , so it may be easily used in
* conditional expressions like
* foo = bar_ok ? baz(bar) : error_exit(...);
*
* Usage:
* error_exit(exit_code, message, args...)
*
* ***** THIS VERSION IS FOR ANSI/ISO C *****
*
* Arguments:
* exit_code = (in) Exit code for exit(2), or PANIC_EXIT (defined in
* <jt/stdc.h>) to abort(2) instead.
* format = (in) vprintf(3S) format string for error message to be printed.
* args... = (in) Any additional arguments are (presumably) used in formatting
* the error message string.
*/
/*VARARGS*/
int error_exit(const int exit_code, const char *const format, ...)
{
va_list ap;
va_start(ap, format);
vfprintf(stderr, format, ap);
va_end(ap);
if (exit_code == PANIC_EXIT)
then abort(); /*NOTREACHED*/
else exit(exit_code); /*NOTREACHED*/
}
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