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1/* ssl/s23_lib.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <openssl/objects.h>
61#include "ssl_locl.h"
62
63long
64ssl23_default_timeout(void)
65{
66 return (300);
67}
68
69int
70ssl23_num_ciphers(void)
71{
72 return(ssl3_num_ciphers()
73#ifndef OPENSSL_NO_SSL2
74 + ssl2_num_ciphers()
75#endif
76 );
77}
78
79const SSL_CIPHER
80*ssl23_get_cipher(unsigned int u)
81{
82 unsigned int uu = ssl3_num_ciphers();
83
84 if (u < uu)
85 return (ssl3_get_cipher(u));
86 else
87#ifndef OPENSSL_NO_SSL2
88 return (ssl2_get_cipher(u - uu));
89#else
90 return (NULL);
91#endif
92}
93
94/* This function needs to check if the ciphers required are actually
95 * available */
96const SSL_CIPHER
97*ssl23_get_cipher_by_char(const unsigned char *p)
98{
99 const SSL_CIPHER *cp;
100
101 cp = ssl3_get_cipher_by_char(p);
102#ifndef OPENSSL_NO_SSL2
103 if (cp == NULL)
104 cp = ssl2_get_cipher_by_char(p);
105#endif
106 return (cp);
107}
108
109int
110ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
111{
112 long l;
113
114 /* We can write SSLv2 and SSLv3 ciphers */
115 if (p != NULL) {
116 l = c->id;
117 p[0] = ((unsigned char)(l >> 16L))&0xFF;
118 p[1] = ((unsigned char)(l >> 8L))&0xFF;
119 p[2] = ((unsigned char)(l ))&0xFF;
120 }
121 return (3);
122}
123
124int
125ssl23_read(SSL *s, void *buf, int len)
126{
127 int n;
128
129 errno = 0;
130 if (SSL_in_init(s) && (!s->in_handshake)) {
131 n = s->handshake_func(s);
132 if (n < 0)
133 return (n);
134 if (n == 0) {
135 SSLerr(SSL_F_SSL23_READ, SSL_R_SSL_HANDSHAKE_FAILURE);
136 return (-1);
137 }
138 return (SSL_read(s, buf, len));
139 } else {
140 ssl_undefined_function(s);
141 return (-1);
142 }
143}
144
145int
146ssl23_peek(SSL *s, void *buf, int len)
147{
148 int n;
149
150 errno = 0;
151 if (SSL_in_init(s) && (!s->in_handshake)) {
152 n = s->handshake_func(s);
153 if (n < 0)
154 return (n);
155 if (n == 0) {
156 SSLerr(SSL_F_SSL23_PEEK, SSL_R_SSL_HANDSHAKE_FAILURE);
157 return (-1);
158 }
159 return (SSL_peek(s, buf, len));
160 } else {
161 ssl_undefined_function(s);
162 return (-1);
163 }
164}
165
166int
167ssl23_write(SSL *s, const void *buf, int len)
168{
169 int n;
170
171 errno = 0;
172 if (SSL_in_init(s) && (!s->in_handshake)) {
173 n = s->handshake_func(s);
174 if (n < 0)
175 return (n);
176 if (n == 0) {
177 SSLerr(SSL_F_SSL23_WRITE, SSL_R_SSL_HANDSHAKE_FAILURE);
178 return (-1);
179 }
180 return (SSL_write(s, buf, len));
181 } else {
182 ssl_undefined_function(s);
183 return (-1);
184 }
185}