s23_lib.c revision 296465
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 ssl23_default_timeout(void) 64{ 65 return (300); 66} 67 68IMPLEMENT_ssl23_meth_func(sslv23_base_method, 69 ssl_undefined_function, 70 ssl_undefined_function, ssl_bad_method) 71 72int ssl23_num_ciphers(void) 73{ 74 return (ssl3_num_ciphers() 75#ifndef OPENSSL_NO_SSL2 76 + ssl2_num_ciphers() 77#endif 78 ); 79} 80 81SSL_CIPHER *ssl23_get_cipher(unsigned int u) 82{ 83 unsigned int uu = ssl3_num_ciphers(); 84 85 if (u < uu) 86 return (ssl3_get_cipher(u)); 87 else 88#ifndef OPENSSL_NO_SSL2 89 return (ssl2_get_cipher(u - uu)); 90#else 91 return (NULL); 92#endif 93} 94 95/* 96 * This function needs to check if the ciphers required are actually 97 * available 98 */ 99SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p) 100{ 101 SSL_CIPHER *cp; 102 103 cp = ssl3_get_cipher_by_char(p); 104#ifndef OPENSSL_NO_SSL2 105 if (cp == NULL) 106 cp = ssl2_get_cipher_by_char(p); 107#endif 108 return (cp); 109} 110 111int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p) 112{ 113 long l; 114 115 /* We can write SSLv2 and SSLv3 ciphers */ 116 /* but no ECC ciphers */ 117 if (c->algorithms & (SSL_ECDH | SSL_aECDSA)) 118 return 0; 119 if (p != NULL) { 120 l = c->id; 121 p[0] = ((unsigned char)(l >> 16L)) & 0xFF; 122 p[1] = ((unsigned char)(l >> 8L)) & 0xFF; 123 p[2] = ((unsigned char)(l)) & 0xFF; 124 } 125 return (3); 126} 127 128int ssl23_read(SSL *s, void *buf, int len) 129{ 130 int n; 131 132 clear_sys_error(); 133 if (SSL_in_init(s) && (!s->in_handshake)) { 134 n = s->handshake_func(s); 135 if (n < 0) 136 return (n); 137 if (n == 0) { 138 SSLerr(SSL_F_SSL23_READ, SSL_R_SSL_HANDSHAKE_FAILURE); 139 return (-1); 140 } 141 return (SSL_read(s, buf, len)); 142 } else { 143 ssl_undefined_function(s); 144 return (-1); 145 } 146} 147 148int ssl23_peek(SSL *s, void *buf, int len) 149{ 150 int n; 151 152 clear_sys_error(); 153 if (SSL_in_init(s) && (!s->in_handshake)) { 154 n = s->handshake_func(s); 155 if (n < 0) 156 return (n); 157 if (n == 0) { 158 SSLerr(SSL_F_SSL23_PEEK, SSL_R_SSL_HANDSHAKE_FAILURE); 159 return (-1); 160 } 161 return (SSL_peek(s, buf, len)); 162 } else { 163 ssl_undefined_function(s); 164 return (-1); 165 } 166} 167 168int ssl23_write(SSL *s, const void *buf, int len) 169{ 170 int n; 171 172 clear_sys_error(); 173 if (SSL_in_init(s) && (!s->in_handshake)) { 174 n = s->handshake_func(s); 175 if (n < 0) 176 return (n); 177 if (n == 0) { 178 SSLerr(SSL_F_SSL23_WRITE, SSL_R_SSL_HANDSHAKE_FAILURE); 179 return (-1); 180 } 181 return (SSL_write(s, buf, len)); 182 } else { 183 ssl_undefined_function(s); 184 return (-1); 185 } 186} 187