1/* $OpenBSD: uuencode.c,v 1.24 2006/08/03 03:34:42 deraadt Exp $ */
2/*
3 * Copyright (c) 2000 Markus Friedl. 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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "includes.h"
27
28#include <sys/types.h>
29#include <netinet/in.h>
30#include <resolv.h>
31#include <stdio.h>
32
33#include "xmalloc.h"
34#include "uuencode.h"
35
36int
37uuencode(const u_char *src, u_int srclength,
38 char *target, size_t targsize)
39{
40 return __b64_ntop(src, srclength, target, targsize);
41}
42
43int
44uudecode(const char *src, u_char *target, size_t targsize)
45{
46 int len;
47 char *encoded, *p;
48
49 /* copy the 'readonly' source */
50 encoded = xstrdup(src);
51 /* skip whitespace and data */
52 for (p = encoded; *p == ' ' || *p == '\t'; p++)
53 ;
54 for (; *p != '\0' && *p != ' ' && *p != '\t'; p++)
55 ;
56 /* and remove trailing whitespace because __b64_pton needs this */
57 *p = '\0';
58 len = __b64_pton(encoded, target, targsize);
59 xfree(encoded);
60 return len;
61}
62
63void
64dump_base64(FILE *fp, u_char *data, u_int len)
65{
66 char *buf;
67 int i, n;
68
69 if (len > 65536) {
70 fprintf(fp, "dump_base64: len > 65536\n");
71 return;
72 }
73 buf = xmalloc(2*len);
74 n = uuencode(data, len, buf, 2*len);
75 for (i = 0; i < n; i++) {
76 fprintf(fp, "%c", buf[i]);
77 if (i % 70 == 69)
78 fprintf(fp, "\n");
79 }
80 if (i % 70 != 69)
81 fprintf(fp, "\n");
82 xfree(buf);
83}
2/*
3 * Copyright (c) 2000 Markus Friedl. 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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "includes.h"
27
28#include <sys/types.h>
29#include <netinet/in.h>
30#include <resolv.h>
31#include <stdio.h>
32
33#include "xmalloc.h"
34#include "uuencode.h"
35
36int
37uuencode(const u_char *src, u_int srclength,
38 char *target, size_t targsize)
39{
40 return __b64_ntop(src, srclength, target, targsize);
41}
42
43int
44uudecode(const char *src, u_char *target, size_t targsize)
45{
46 int len;
47 char *encoded, *p;
48
49 /* copy the 'readonly' source */
50 encoded = xstrdup(src);
51 /* skip whitespace and data */
52 for (p = encoded; *p == ' ' || *p == '\t'; p++)
53 ;
54 for (; *p != '\0' && *p != ' ' && *p != '\t'; p++)
55 ;
56 /* and remove trailing whitespace because __b64_pton needs this */
57 *p = '\0';
58 len = __b64_pton(encoded, target, targsize);
59 xfree(encoded);
60 return len;
61}
62
63void
64dump_base64(FILE *fp, u_char *data, u_int len)
65{
66 char *buf;
67 int i, n;
68
69 if (len > 65536) {
70 fprintf(fp, "dump_base64: len > 65536\n");
71 return;
72 }
73 buf = xmalloc(2*len);
74 n = uuencode(data, len, buf, 2*len);
75 for (i = 0; i < n; i++) {
76 fprintf(fp, "%c", buf[i]);
77 if (i % 70 == 69)
78 fprintf(fp, "\n");
79 }
80 if (i % 70 != 69)
81 fprintf(fp, "\n");
82 xfree(buf);
83}