/*

 * errmsg.c - implementation of the elf_errmsg(3) function.

 * Copyright (C) 1995 - 1999, 2004 Michael Riepe

 * 

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 * 

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 * 

 * You should have received a copy of the GNU Library General Public

 * License along with this library; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

#include <private.h>

#ifndef lint

static const char rcsid[] = "@(#) $Id: errmsg.c,v 1.10 2005/05/21 15:39:21 michael Exp $";

#endif /* lint */

#if HAVE_DGETTEXT

# undef HAVE_CATGETS

# include <libintl.h>

#else /* HAVE_DGETTEXT */

# define dgettext(dom, str) str

#endif /* HAVE_DGETTEXT */

#if HAVE_CATGETS

# include <nl_types.h>

static nl_catd _libelf_cat = (nl_catd)0;

#endif /* HAVE_CATGETS */

#if HAVE_DGETTEXT || HAVE_CATGETS

static const char domain[] = "libelf";

#endif /* HAVE_DGETTEXT || HAVE_CATGETS */

#if PIC

static const char *_messages[] = {

#else /* PIC */

static const char *const _messages[] = {

#endif /* PIC */

#define __err__(a,b)	b,

#include <errors.h>		/* include string tables from errors.h */

#undef __err__

};

const char*

elf_errmsg(int err) {

    if (err == 0) {

	err = _elf_errno;

	if (err == 0) {

	    return NULL;

	}

    }

    else if (err == -1) {

	err = _elf_errno;

    }

    if (err < 0 || err >= ERROR_NUM || _messages[err] == NULL) {

	err = ERROR_UNKNOWN;

    }

#if HAVE_CATGETS

    if (_libelf_cat == (nl_catd)0) {

	_libelf_cat = catopen(domain, 0);

    }

    if (_libelf_cat != (nl_catd)-1) {

	return catgets(_libelf_cat, 1, err + 1, _messages[err]);

    }

#endif /* HAVE_CATGETS */

    return dgettext(domain, _messages[err]);

}