/*
 * Written by J.T. Conklin <jtc@NetBSD.org>.
 * Public domain.
 */

#if 0
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: l64a.c,v 1.13 2003/07/26 19:24:54 salo Exp $");
#endif /* not lint */
#endif

#include <sys/cdefs.h>
#include <stdint.h>
#include <stdlib.h>

char *
l64a(long value)
{
        static char buf[7];

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

int
l64a_r(long value, char *buffer, int buflen)
{
        static const char chars[] =
            "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
        uint32_t v;

        v = value;
        while (buflen-- > 0) {
                if (v == 0) {
                        *buffer = '\0';
                        return (0);
                }
                *buffer++ = chars[v & 0x3f];
                v >>= 6;
        }
        return (-1);
}