1 /*
2 * Copyright (c) 2000 Markus Friedl. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25 #include "includes.h"
26 RCSID("$OpenBSD: uuencode.c,v 1.16 2002/09/09 14:54:15 markus Exp $");
27
28 #pragma ident "%Z%%M% %I% %E% SMI"
29
30 #include "xmalloc.h"
31 #include "uuencode.h"
32
33 int
uuencode(u_char * src,u_int srclength,char * target,size_t targsize)34 uuencode(u_char *src, u_int srclength,
35 char *target, size_t targsize)
36 {
37 return __b64_ntop(src, srclength, target, targsize);
38 }
39
40 int
uudecode(const char * src,u_char * target,size_t targsize)41 uudecode(const char *src, u_char *target, size_t targsize)
42 {
43 int len;
44 char *encoded, *p;
45
46 /* copy the 'readonly' source */
47 encoded = xstrdup(src);
48 /* skip whitespace and data */
49 for (p = encoded; *p == ' ' || *p == '\t'; p++)
50 ;
51 for (; *p != '\0' && *p != ' ' && *p != '\t'; p++)
52 ;
53 /* and remove trailing whitespace because __b64_pton needs this */
54 *p = '\0';
55 len = __b64_pton((u_char *) encoded, target, targsize);
56 xfree(encoded);
57 return len;
58 }
59
60 void
dump_base64(FILE * fp,u_char * data,u_int len)61 dump_base64(FILE *fp, u_char *data, u_int len)
62 {
63 char *buf = xmalloc(2*len);
64 int i, n;
65
66 n = uuencode(data, len, buf, 2*len);
67 for (i = 0; i < n; i++) {
68 fprintf(fp, "%c", buf[i]);
69 if (i % 70 == 69)
70 fprintf(fp, "\n");
71 }
72 if (i % 70 != 69)
73 fprintf(fp, "\n");
74 xfree(buf);
75 }
76