crypto/libressl/ssl/s23_lib.c

   1 /* $OpenBSD: s23_lib.c,v 1.17 2014/08/10 14:42:56 jsing Exp $ */
   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
  61 #include <openssl/objects.h>
  62
  63 #include "ssl_locl.h"
  64
  65 long
  66 ssl23_default_timeout(void)
  67 {
  68         return (300);
  69 }
  70
  71 int
  72 ssl23_read(SSL *s, void *buf, int len)
  73 {
  74         int n;
  75
  76         errno = 0;
  77         if (SSL_in_init(s) && (!s->in_handshake)) {
  78                 n = s->handshake_func(s);
  79                 if (n < 0)
  80                         return (n);
  81                 if (n == 0) {
  82                         SSLerr(SSL_F_SSL23_READ, SSL_R_SSL_HANDSHAKE_FAILURE);
  83                         return (-1);
  84                 }
  85                 return (SSL_read(s, buf, len));
  86         } else {
  87                 ssl_undefined_function(s);
  88                 return (-1);
  89         }
  90 }
  91
  92 int
  93 ssl23_peek(SSL *s, void *buf, int len)
  94 {
  95         int n;
  96
  97         errno = 0;
  98         if (SSL_in_init(s) && (!s->in_handshake)) {
  99                 n = s->handshake_func(s);
 100                 if (n < 0)
 101                         return (n);
 102                 if (n == 0) {
 103                         SSLerr(SSL_F_SSL23_PEEK, SSL_R_SSL_HANDSHAKE_FAILURE);
 104                         return (-1);
 105                 }
 106                 return (SSL_peek(s, buf, len));
 107         } else {
 108                 ssl_undefined_function(s);
 109                 return (-1);
 110         }
 111 }
 112
 113 int
 114 ssl23_write(SSL *s, const void *buf, int len)
 115 {
 116         int n;
 117
 118         errno = 0;
 119         if (SSL_in_init(s) && (!s->in_handshake)) {
 120                 n = s->handshake_func(s);
 121                 if (n < 0)
 122                         return (n);
 123                 if (n == 0) {
 124                         SSLerr(SSL_F_SSL23_WRITE, SSL_R_SSL_HANDSHAKE_FAILURE);
 125                         return (-1);
 126                 }
 127                 return (SSL_write(s, buf, len));
 128         } else {
 129                 ssl_undefined_function(s);
 130                 return (-1);
 131         }
 132 }