1/*	$NetBSD: l64a.c,v 1.12 2000/01/22 22:19:19 mycroft Exp $	*/
2
3/*
4 * Written by J.T. Conklin <jtc@NetBSD.org>.
5 * Public domain.
6 */
7
8#include <sys/cdefs.h>
9#if defined(LIBC_SCCS) && !defined(lint)
10__RCSID("$NetBSD: l64a.c,v 1.12 2000/01/22 22:19:19 mycroft Exp $");
11#endif
12
13#include "namespace.h"
14
15#include <assert.h>
16#include <errno.h>
17#include <stdlib.h>
18
19#ifdef __weak_alias
20__weak_alias(l64a,_l64a)
21__weak_alias(l64a_r,_l64a_r)
22#endif
23
24char *
25l64a (value)
26	long value;
27{
28	static char buf[8];
29
30	(void)l64a_r(value, buf, sizeof (buf));
31	return buf;
32}
33
34int
35l64a_r (value, buffer, buflen)
36	long value;
37	char *buffer;
38	int buflen;
39{
40	char *s = buffer;
41	int digit;
42	unsigned long v = value;
43
44	_DIAGASSERT(buffer != NULL);
45
46	if (value == 0UL)
47		goto out;
48
49	for (; v != 0 && buflen > 1; s++, buflen--) {
50		digit = (int)(v & 0x3f);
51
52		if (digit < 2)
53			*s = digit + '.';
54		else if (digit < 12)
55			*s = digit + '0' - 2;
56		else if (digit < 38)
57			*s = digit + 'A' - 12;
58		else
59			*s = digit + 'a' - 38;
60		v >>= 6;
61	}
62
63out:
64	*s = '\0';
65
66	return (v == 0UL ? 0 : -1);
67}
68