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: IMPLEMENT_ssl23_meth_func(sslv23_base_method,
   69:                         ssl_undefined_function,
   70:                         ssl_undefined_function,
   71:                         ssl_bad_method)
   72: 
   73: int ssl23_num_ciphers(void)
   74:         {
   75:         return(ssl3_num_ciphers()
   76: #ifndef OPENSSL_NO_SSL2
   77:                + ssl2_num_ciphers()
   78: #endif
   79:             );
   80:         }
   81: 
   82: SSL_CIPHER *ssl23_get_cipher(unsigned int u)
   83:         {
   84:         unsigned int uu=ssl3_num_ciphers();
   85: 
   86:         if (u < uu)
   87:                 return(ssl3_get_cipher(u));
   88:         else
   89: #ifndef OPENSSL_NO_SSL2
   90:                 return(ssl2_get_cipher(u-uu));
   91: #else
   92:                 return(NULL);
   93: #endif
   94:         }
   95: 
   96: /* This function needs to check if the ciphers required are actually
   97:  * available */
   98: SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p)
   99:         {
  100:         SSL_CIPHER c,*cp;
  101:         unsigned long id;
  102:         int n;
  103: 
  104:         n=ssl3_num_ciphers();
  105:         id=0x03000000|((unsigned long)p[0]<<16L)|
  106:                 ((unsigned long)p[1]<<8L)|(unsigned long)p[2];
  107:         c.id=id;
  108:         cp=ssl3_get_cipher_by_char(p);
  109: #ifndef OPENSSL_NO_SSL2
  110:         if (cp == NULL)
  111:                 cp=ssl2_get_cipher_by_char(p);
  112: #endif
  113:         return(cp);
  114:         }
  115: 
  116: int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
  117:         {
  118:         long l;
  119: 
  120:         /* We can write SSLv2 and SSLv3 ciphers */
  121:         if (p != NULL)
  122:                 {
  123:                 l=c->id;
  124:                 p[0]=((unsigned char)(l>>16L))&0xFF;
  125:                 p[1]=((unsigned char)(l>> 8L))&0xFF;
  126:                 p[2]=((unsigned char)(l     ))&0xFF;
  127:                 }
  128:         return(3);
  129:         }
  130: 
  131: int ssl23_read(SSL *s, void *buf, int len)
  132:         {
  133:         int n;
  134: 
  135:         clear_sys_error();
  136:         if (SSL_in_init(s) && (!s->in_handshake))
  137:                 {
  138:                 n=s->handshake_func(s);
  139:                 if (n < 0) return(n);
  140:                 if (n == 0)
  141:                         {
  142:                         SSLerr(SSL_F_SSL23_READ,SSL_R_SSL_HANDSHAKE_FAILURE);
  143:                         return(-1);
  144:                         }
  145:                 return(SSL_read(s,buf,len));
  146:                 }
  147:         else
  148:                 {
  149:                 ssl_undefined_function(s);
  150:                 return(-1);
  151:                 }
  152:         }
  153: 
  154: int ssl23_peek(SSL *s, void *buf, int len)
  155:         {
  156:         int n;
  157: 
  158:         clear_sys_error();
  159:         if (SSL_in_init(s) && (!s->in_handshake))
  160:                 {
  161:                 n=s->handshake_func(s);
  162:                 if (n < 0) return(n);
  163:                 if (n == 0)
  164:                         {
  165:                         SSLerr(SSL_F_SSL23_PEEK,SSL_R_SSL_HANDSHAKE_FAILURE);
  166:                         return(-1);
  167:                         }
  168:                 return(SSL_peek(s,buf,len));
  169:                 }
  170:         else
  171:                 {
  172:                 ssl_undefined_function(s);
  173:                 return(-1);
  174:                 }
  175:         }
  176: 
  177: int ssl23_write(SSL *s, const void *buf, int len)
  178:         {
  179:         int n;
  180: 
  181:         clear_sys_error();
  182:         if (SSL_in_init(s) && (!s->in_handshake))
  183:                 {
  184:                 n=s->handshake_func(s);
  185:                 if (n < 0) return(n);
  186:                 if (n == 0)
  187:                         {
  188:                         SSLerr(SSL_F_SSL23_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE);
  189:                         return(-1);
  190:                         }
  191:                 return(SSL_write(s,buf,len));
  192:                 }
  193:         else
  194:                 {
  195:                 ssl_undefined_function(s);
  196:                 return(-1);
  197:                 }
  198:         }