2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
62 #include <openssl/objects.h>
65 static int ssl23_num_ciphers(void );
66 static SSL_CIPHER *ssl23_get_cipher(unsigned int u);
67 static int ssl23_read(SSL *s, void *buf, int len);
68 static int ssl23_write(SSL *s, const void *buf, int len);
69 static long ssl23_default_timeout(void );
70 static int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
71 static SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
72 char *SSL23_version_str="SSLv2/3 compatibility" OPENSSL_VERSION_PTEXT;
74 static SSL_METHOD SSLv23_data= {
79 ssl_undefined_function,
80 ssl_undefined_function,
82 (int (*)(struct ssl_st *, char *, int))ssl_undefined_function,
84 ssl_undefined_function,
85 ssl_undefined_function,
89 ssl23_get_cipher_by_char,
90 ssl23_put_cipher_by_char,
91 ssl_undefined_function,
95 ssl23_default_timeout,
96 &ssl3_undef_enc_method,
99 static long ssl23_default_timeout(void)
104 SSL_METHOD *sslv23_base_method(void)
106 return(&SSLv23_data);
109 static int ssl23_num_ciphers(void)
111 return(ssl3_num_ciphers()
118 static SSL_CIPHER *ssl23_get_cipher(unsigned int u)
120 unsigned int uu=ssl3_num_ciphers();
123 return(ssl3_get_cipher(u));
126 return(ssl2_get_cipher(u-uu));
132 /* This function needs to check if the ciphers required are actually
134 static SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p)
140 n=ssl3_num_ciphers();
141 id=0x03000000|((unsigned long)p[0]<<16L)|
142 ((unsigned long)p[1]<<8L)|(unsigned long)p[2];
144 cp=ssl3_get_cipher_by_char(p);
147 cp=ssl2_get_cipher_by_char(p);
152 static int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
156 /* We can write SSLv2 and SSLv3 ciphers */
160 p[0]=((unsigned char)(l>>16L))&0xFF;
161 p[1]=((unsigned char)(l>> 8L))&0xFF;
162 p[2]=((unsigned char)(l ))&0xFF;
167 static int ssl23_read(SSL *s, void *buf, int len)
172 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
174 s->rwstate=SSL_NOTHING;
179 if (SSL_in_init(s) && (!s->in_handshake))
181 n=s->handshake_func(s);
182 if (n < 0) return(n);
185 SSLerr(SSL_F_SSL23_READ,SSL_R_SSL_HANDSHAKE_FAILURE);
188 return(SSL_read(s,buf,len));
192 ssl_undefined_function(s);
197 static int ssl23_write(SSL *s, const void *buf, int len)
202 if (s->shutdown & SSL_SENT_SHUTDOWN)
204 s->rwstate=SSL_NOTHING;
209 if (SSL_in_init(s) && (!s->in_handshake))
211 n=s->handshake_func(s);
212 if (n < 0) return(n);
215 SSLerr(SSL_F_SSL23_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE);
218 return(SSL_write(s,buf,len));
222 ssl_undefined_function(s);