/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */

/*

 * Copyright 1997 by Massachusetts Institute of Technology

 *

 * Copyright 1987 by MIT Student Information Processing Board

 *

 * Permission to use, copy, modify, and distribute this software

 * and its documentation for any purpose and without fee is

 * hereby granted, provided that the above copyright notice

 * appear in all copies and that both that copyright notice and

 * this permission notice appear in supporting documentation,

 * and that the names of M.I.T. and the M.I.T. S.I.P.B. not be

 * used in advertising or publicity pertaining to distribution

 * of the software without specific, written prior permission.

 * Furthermore if you modify this software you must label

 * your software as modified software and not distribute it in such a

 * fashion that it might be confused with the original M.I.T. software.

 * M.I.T. and the M.I.T. S.I.P.B. make no representations about

 * the suitability of this software for any purpose.  It is

 * provided "as is" without express or implied warranty.

 */

#include "com_err.h"

#include "error_table.h"

static const char char_set[] =

    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";

const char *

error_table_name_r (unsigned long num,

                    /*@out@*/ /*@returned@*/ char *outbuf)

/*@modifies outbuf@*/

{

    long ch;

    int i;

    /*@out@*/ char *p;

    p = outbuf;

    num >>= ERRCODE_RANGE;

    for (i = 3; i >= 0; i--) {

        ch = (num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1);

        if (ch != 0)

            *p++ = char_set[ch-1];

    }

    *p = '\0';

    return(outbuf);

}

/*@observer@*/

const char * error_table_name(unsigned long num)

/*@modifies internalState@*/

{

    static char buf[6];

    return error_table_name_r(num, buf);

}