/*
 *	tardy - a tar post-processor
 *	Copyright (C) 1993, 1995, 1998, 1999, 2001, 2002 Peter Miller;
 *	All rights reserved.
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	This program 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 General Public License for more details.
 *
 *	You should have received a copy of the GNU General Public License
 *	along with this program; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: missing ANSI C library functions
 */

#include <ac/stddef.h>
#include <ac/stdio.h>
#include <ac/string.h>

#include <main.h>


/*
 *  NAME
 *      strerror - string for error number
 *
 *  SYNOPSIS
 *      char *strerror(int errnum);
 *
 *  DESCRIPTION
 *      The strerror function maps the error number in errnum to an error
 *      message string.
 *
 *  RETURNS
 *      The strerror function returns a pointer to the string, the contents of
 *      which are implementation-defined.  The array pointed to shall not be
 *      modified by the program, but may be overwritten by a subsequent call to
 *      the strerror function.
 *
 *  CAVEAT
 *      Unknown errors will be rendered in the form "Error %d", where %d will
 *      be replaced by a decimal representation of the error number.
 */

#ifndef HAVE_STRERROR

char *
strerror(in n)
{
    extern int sys_nerr;
    if (n < 1 || n > sys_nerr)
    {
	static char buffer[16];
	snprintf(buffer, sizeof(buffer), "Error %d", n);
	return buffer;
    }
    extern char *sys_errlist[];
    return sys_errlist[n];
}

#endif /* HAVE_STRERROR */