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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 
ssl23_default_timeout(void)63 long ssl23_default_timeout(void)
64 	{
65 	return(300);
66 	}
67 
ssl23_num_ciphers(void)68 int ssl23_num_ciphers(void)
69 	{
70 	return(ssl3_num_ciphers()
71 #ifndef OPENSSL_NO_SSL2
72 	       + ssl2_num_ciphers()
73 #endif
74 	    );
75 	}
76 
ssl23_get_cipher(unsigned int u)77 const SSL_CIPHER *ssl23_get_cipher(unsigned int u)
78 	{
79 	unsigned int uu=ssl3_num_ciphers();
80 
81 	if (u < uu)
82 		return(ssl3_get_cipher(u));
83 	else
84 #ifndef OPENSSL_NO_SSL2
85 		return(ssl2_get_cipher(u-uu));
86 #else
87 		return(NULL);
88 #endif
89 	}
90 
91 /* This function needs to check if the ciphers required are actually
92  * available */
ssl23_get_cipher_by_char(const unsigned char * p)93 const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p)
94 	{
95 	SSL_CIPHER c;
96 	const SSL_CIPHER *cp;
97 	unsigned long id;
98 	int n;
99 
100 	n=ssl3_num_ciphers();
101 	id=0x03000000|((unsigned long)p[0]<<16L)|
102 		((unsigned long)p[1]<<8L)|(unsigned long)p[2];
103 	c.id=id;
104 	cp=ssl3_get_cipher_by_char(p);
105 #ifndef OPENSSL_NO_SSL2
106 	if (cp == NULL)
107 		cp=ssl2_get_cipher_by_char(p);
108 #endif
109 	return(cp);
110 	}
111 
ssl23_put_cipher_by_char(const SSL_CIPHER * c,unsigned char * p)112 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
113 	{
114 	long l;
115 
116 	/* We can write SSLv2 and SSLv3 ciphers */
117 	if (p != NULL)
118 		{
119 		l=c->id;
120 		p[0]=((unsigned char)(l>>16L))&0xFF;
121 		p[1]=((unsigned char)(l>> 8L))&0xFF;
122 		p[2]=((unsigned char)(l     ))&0xFF;
123 		}
124 	return(3);
125 	}
126 
ssl23_read(SSL * s,void * buf,int len)127 int ssl23_read(SSL *s, void *buf, int len)
128 	{
129 	int n;
130 
131 	clear_sys_error();
132 	if (SSL_in_init(s) && (!s->in_handshake))
133 		{
134 		n=s->handshake_func(s);
135 		if (n < 0) return(n);
136 		if (n == 0)
137 			{
138 			SSLerr(SSL_F_SSL23_READ,SSL_R_SSL_HANDSHAKE_FAILURE);
139 			return(-1);
140 			}
141 		return(SSL_read(s,buf,len));
142 		}
143 	else
144 		{
145 		ssl_undefined_function(s);
146 		return(-1);
147 		}
148 	}
149 
ssl23_peek(SSL * s,void * buf,int len)150 int ssl23_peek(SSL *s, void *buf, int len)
151 	{
152 	int n;
153 
154 	clear_sys_error();
155 	if (SSL_in_init(s) && (!s->in_handshake))
156 		{
157 		n=s->handshake_func(s);
158 		if (n < 0) return(n);
159 		if (n == 0)
160 			{
161 			SSLerr(SSL_F_SSL23_PEEK,SSL_R_SSL_HANDSHAKE_FAILURE);
162 			return(-1);
163 			}
164 		return(SSL_peek(s,buf,len));
165 		}
166 	else
167 		{
168 		ssl_undefined_function(s);
169 		return(-1);
170 		}
171 	}
172 
ssl23_write(SSL * s,const void * buf,int len)173 int ssl23_write(SSL *s, const void *buf, int len)
174 	{
175 	int n;
176 
177 	clear_sys_error();
178 	if (SSL_in_init(s) && (!s->in_handshake))
179 		{
180 		n=s->handshake_func(s);
181 		if (n < 0) return(n);
182 		if (n == 0)
183 			{
184 			SSLerr(SSL_F_SSL23_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE);
185 			return(-1);
186 			}
187 		return(SSL_write(s,buf,len));
188 		}
189 	else
190 		{
191 		ssl_undefined_function(s);
192 		return(-1);
193 		}
194 	}
195