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			error.c
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<pre>
/*====================================================================*
 *
 *   signed error (signed status, errno_t number, char const * format, ...);
 *
 *   error.h
 *
 *   custom implementation of GNU error() function for systems
 *   that do not have it; this version always returns -1;
 *
 *   Motley Tools by Charles Maier &lt;cmaier@cmassoc.net&gt;;
 *   Copyright (c) 2001-2006 by Charles Maier Associates;
 *   Licensed under the Internet Software Consortium License;
 *
 *--------------------------------------------------------------------*/

#ifndef ERROR_SOURCE
#define ERROR_SOURCE

#include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;stdarg.h&gt;
#include &lt;string.h&gt;

#include &quot;../tools/types.h&quot;
#include &quot;../tools/error.h&quot;

#ifdef __GNUC__

__attribute__ ((format (printf, 3, 4)))

#endif

signed error (signed status, errno_t number, char const * format, ...)

{
	extern char const *program_name;
	if ((program_name) &amp;&amp; (*program_name))
	{
		fprintf (stderr, &quot;%s: &quot;, program_name);
	}

#if 1

	if ((format) &amp;&amp; (*format))
	{
		va_list arglist;
		va_start (arglist, format);
		vfprintf (stderr, format, arglist);
		va_end (arglist);
	}
	if (number)
	{
		fprintf (stderr, &quot;: %s&quot;, strerror (number));
	}

#else

	if (number)
	{
		fprintf (stderr, &quot;%s: &quot;, strerror (number));
	}
	if ((format) &amp;&amp; (*format))
	{
		va_list arglist;
		va_start (arglist, format);
		vfprintf (stderr, format, arglist);
		va_end (arglist);
	}

#endif

	fprintf (stderr, &quot;\n&quot;);
	fflush (stderr);
	if (status)
	{
		exit (status);
	}
	return (-1);
}

#endif


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