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att
GitHub Repository: att/ast
 Path: blob/master/src/lib/libast/astsa/error.c
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/***********************************************************************

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*                                                                      *

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*               This software is part of the ast package               *

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*          Copyright (c) 1985-2011 AT&T Intellectual Property          *

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*                      and is licensed under the                       *

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*                 Eclipse Public License, Version 1.0                  *

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*                    by AT&T Intellectual Property                     *

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*                                                                      *

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*                A copy of the License is available at                 *

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*          http://www.eclipse.org/org/documents/epl-v10.html           *

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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

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*                                                                      *

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*              Information and Software Systems Research               *

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*                            AT&T Research                             *

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*                           Florham Park NJ                            *

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*                                                                      *

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*                 Glenn Fowler <[email protected]>                  *

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*                  David Korn <[email protected]>                   *

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*                   Phong Vo <[email protected]>                    *

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*                                                                      *

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***********************************************************************/

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#pragma prototyped

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/*

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 * standalone mini error implementation

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 */

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#include <ast.h>

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#include <error.h>

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Error_info_t	error_info;

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void

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errorv(const char* id, int level, va_list ap)

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{

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	char*	a;

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	char*	s;

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	int	flags;

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	if (level < 0)

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		flags = 0;

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	else

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	{

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		flags = level & ~ERROR_LEVEL;

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		level &= ERROR_LEVEL;

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	}

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	a = va_arg(ap, char*);

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	if (level && ((s = error_info.id) || (s = (char*)id)))

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	{

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		if (!(flags & ERROR_USAGE))

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			sfprintf(sfstderr, "%s: ", s);

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		else if (strcmp(a, "%s"))

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			sfprintf(sfstderr, "Usage: %s ", s);

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	}

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	if (flags & ERROR_USAGE)

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		/*nop*/;

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	else if (level < 0)

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		sfprintf(sfstderr, "debug%d: ", level);

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	else if (level)

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	{

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		if (level == ERROR_WARNING)

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		{

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			sfprintf(sfstderr, "warning: ");

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			error_info.warnings++;

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		}

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		else

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		{

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			error_info.errors++;

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			if (level == ERROR_PANIC)

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				sfprintf(sfstderr, "panic: ");

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		}

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		if (error_info.line)

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		{

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			if (error_info.file && *error_info.file)

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				sfprintf(sfstderr, "\"%s\", ", error_info.file);

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			sfprintf(sfstderr, "line %d: ", error_info.line);

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		}

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	}

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	sfvprintf(sfstderr, a, ap);

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	sfprintf(sfstderr, "\n");

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	if (level >= ERROR_FATAL)

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		exit(level - ERROR_FATAL + 1);

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}

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void

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error(int level, ...)

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{

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	va_list	ap;

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	va_start(ap, level);

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	errorv(NiL, level, ap);

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	va_end(ap);

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}

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int

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errorf(void* handle, void* discipline, int level, ...)

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{

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	va_list	ap;

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	va_start(ap, level);

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	errorv((discipline && handle) ? *((char**)handle) : (char*)handle, level, ap);

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	va_end(ap);

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	return 0;

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}

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