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 63 long ssl23_default_timeout(void) 64 { 65 return(300); 66 } 67 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 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 */ 93 const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p) 94 { 95 const SSL_CIPHER *cp; 96 97 cp=ssl3_get_cipher_by_char(p); 98 #ifndef OPENSSL_NO_SSL2 99 if (cp == NULL) 100 cp=ssl2_get_cipher_by_char(p); 101 #endif 102 return(cp); 103 } 104 105 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p) 106 { 107 long l; 108 109 /* We can write SSLv2 and SSLv3 ciphers */ 110 if (p != NULL) 111 { 112 l=c->id; 113 p[0]=((unsigned char)(l>>16L))&0xFF; 114 p[1]=((unsigned char)(l>> 8L))&0xFF; 115 p[2]=((unsigned char)(l ))&0xFF; 116 } 117 return(3); 118 } 119 120 int ssl23_read(SSL *s, void *buf, int len) 121 { 122 int n; 123 124 clear_sys_error(); 125 if (SSL_in_init(s) && (!s->in_handshake)) 126 { 127 n=s->handshake_func(s); 128 if (n < 0) return(n); 129 if (n == 0) 130 { 131 SSLerr(SSL_F_SSL23_READ,SSL_R_SSL_HANDSHAKE_FAILURE); 132 return(-1); 133 } 134 return(SSL_read(s,buf,len)); 135 } 136 else 137 { 138 ssl_undefined_function(s); 139 return(-1); 140 } 141 } 142 143 int ssl23_peek(SSL *s, void *buf, int len) 144 { 145 int n; 146 147 clear_sys_error(); 148 if (SSL_in_init(s) && (!s->in_handshake)) 149 { 150 n=s->handshake_func(s); 151 if (n < 0) return(n); 152 if (n == 0) 153 { 154 SSLerr(SSL_F_SSL23_PEEK,SSL_R_SSL_HANDSHAKE_FAILURE); 155 return(-1); 156 } 157 return(SSL_peek(s,buf,len)); 158 } 159 else 160 { 161 ssl_undefined_function(s); 162 return(-1); 163 } 164 } 165 166 int ssl23_write(SSL *s, const void *buf, int len) 167 { 168 int n; 169 170 clear_sys_error(); 171 if (SSL_in_init(s) && (!s->in_handshake)) 172 { 173 n=s->handshake_func(s); 174 if (n < 0) return(n); 175 if (n == 0) 176 { 177 SSLerr(SSL_F_SSL23_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE); 178 return(-1); 179 } 180 return(SSL_write(s,buf,len)); 181 } 182 else 183 { 184 ssl_undefined_function(s); 185 return(-1); 186 } 187 } 188