1    | /*
2    |  * Copyright (c) 1999
3    |  *      University of California.  All rights reserved.
4    |  *
5    |  * Redistribution and use in source and binary forms, with or without
6    |  * modification, are permitted provided that the following conditions
7    |  * are met:
8    |  * 1. Redistributions of source code must retain the above copyright
9    |  *    notice, this list of conditions and the following disclaimer.
10   |  * 2. Redistributions in binary form must reproduce the above copyright
11   |  *    notice, this list of conditions and the following disclaimer in the
12   |  *    documentation and/or other materials provided with the distribution.
13   |  * 3. Neither the name of the author nor the names of any co-contributors
14   |  *    may be used to endorse or promote products derived from this software
15   |  *    without specific prior written permission.
16   |  *
17   |  * THIS SOFTWARE IS PROVIDED BY CONTRIBUTORS ``AS IS'' AND ANY EXPRESS
18   |  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19   |  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20   |  * ARE DISCLAIMED. IN NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY
21   |  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22   |  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
23   |  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24   |  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25   |  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26   |  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27   |  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28   |  */
29   | 
30   | /* #include <sys/cdefs.h>
31   | __FBSDID("$FreeBSD: src/lib/libcrypt/misc.c,v 1.3 2002/03/06 17:18:08 markm Exp $");
32   | */
33   | #include <sys/types.h>
34   | 
35   | #include "crypt.h"
36   | 
37   | static char itoa64[] =          /* 0 ... 63 => ascii - 64 */
38   |         "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
39   | 
40   | void
41   | _crypt_to64(char *s, u_long v, int n)
42   | {
43   |         while (--n >= 0) {
44   |                 *s++ = itoa64[v&0x3f];
45   |                 v >>= 6;
46   |         }
47   | }