/*
 * Written by J.T. Conklin <jtc@NetBSD.org>.
 * Public domain.
 *
 * $NetBSD: l64a.c,v 1.13 2003/07/26 19:24:54 salo Exp $
 * $FreeBSD: src/lib/libc/stdlib/l64a.c,v 1.1 2005/12/24 22:37:59 trhodes Exp $
 */

#include <stdlib.h>

char *
l64a(long value)
{
        static char buf[8];

        l64a_r(value, buf, sizeof(buf));
        return (buf);
}

int
l64a_r(long value, char *buffer, int buflen)
{
        long v;
        int digit;

        v = value & (long)0xffffffff;
        for (; v != 0 && buflen > 1; buffer++, buflen--) {
                digit = v & 0x3f;
                if (digit < 2)
                        *buffer = digit + '.';
                else if (digit < 12)
                        *buffer = digit + '0' - 2;
                else if (digit < 38)
                        *buffer = digit + 'A' - 12;
                else
                        *buffer = digit + 'a' - 38;
                v >>= 6;
        }
        return (v == 0 ? 0 : -1);
}