xref: /openbsd/lib/libkeynote/base64.c (revision 4cfece93)
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
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
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