1 /* $OpenBSD: base64.c,v 1.11 2004/06/29 11:35:56 msf Exp $ */
2 /* $OpenBSD: base64.c,v 1.11 2004/06/29 11:35:56 msf Exp $ */
3 /*
4 * The author of this code is Angelos D. Keromytis (angelos@dsl.cis.upenn.edu)
5 *
6 * This code was written by Angelos D. Keromytis in Philadelphia, PA, USA,
7 * in April-May 1998
8 *
9 * Copyright (C) 1998, 1999 by Angelos D. Keromytis.
10 *
11 * Permission to use, copy, and modify this software with or without fee
12 * is hereby granted, provided that this entire notice is included in
13 * all copies of any software which is or includes a copy or
14 * modification of this software.
15 *
16 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
17 * IMPLIED WARRANTY. IN PARTICULAR, THE AUTHORS MAKES NO
18 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
19 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
20 * PURPOSE.
21 */
22
23 #include <sys/types.h>
24
25 #include <ctype.h>
26 #include <regex.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30
31 #include "keynote.h"
32
33 int __b64_ntop(unsigned char const *, size_t, char *, size_t);
34 int __b64_pton(char const *, unsigned char *, size_t);
35
36 int
kn_encode_base64(src,srclength,target,targsize)37 kn_encode_base64(src, srclength, target, targsize)
38 unsigned char const *src;
39 unsigned int srclength;
40 char *target;
41 unsigned int targsize;
42 {
43 int i;
44
45 i = __b64_ntop(src, srclength, target, targsize);
46 if (i == -1)
47 keynote_errno = ERROR_SYNTAX;
48 return i;
49 }
50
51 int
kn_decode_base64(src,target,targsize)52 kn_decode_base64(src, target, targsize)
53 char const *src;
54 unsigned char *target;
55 unsigned int targsize;
56 {
57 int i;
58
59 i = __b64_pton(src, target, targsize);
60 if (i == -1)
61 keynote_errno = ERROR_SYNTAX;
62 return i;
63 }
64