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-rw-r--r--openssl/ssl/s3_both.c622
1 files changed, 622 insertions, 0 deletions
diff --git a/openssl/ssl/s3_both.c b/openssl/ssl/s3_both.c
new file mode 100644
index 000000000..2ecfbb77c
--- /dev/null
+++ b/openssl/ssl/s3_both.c
@@ -0,0 +1,622 @@
+/* ssl/s3_both.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ * ECC cipher suite support in OpenSSL originally developed by
+ * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
+ */
+
+#include <limits.h>
+#include <string.h>
+#include <stdio.h>
+#include "ssl_locl.h"
+#include <openssl/buffer.h>
+#include <openssl/rand.h>
+#include <openssl/objects.h>
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+
+/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */
+int ssl3_do_write(SSL *s, int type)
+ {
+ int ret;
+
+ ret=ssl3_write_bytes(s,type,&s->init_buf->data[s->init_off],
+ s->init_num);
+ if (ret < 0) return(-1);
+ if (type == SSL3_RT_HANDSHAKE)
+ /* should not be done for 'Hello Request's, but in that case
+ * we'll ignore the result anyway */
+ ssl3_finish_mac(s,(unsigned char *)&s->init_buf->data[s->init_off],ret);
+
+ if (ret == s->init_num)
+ {
+ if (s->msg_callback)
+ s->msg_callback(1, s->version, type, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg);
+ return(1);
+ }
+ s->init_off+=ret;
+ s->init_num-=ret;
+ return(0);
+ }
+
+int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen)
+ {
+ unsigned char *p,*d;
+ int i;
+ unsigned long l;
+
+ if (s->state == a)
+ {
+ d=(unsigned char *)s->init_buf->data;
+ p= &(d[4]);
+
+ i=s->method->ssl3_enc->final_finish_mac(s,
+ &(s->s3->finish_dgst1),
+ &(s->s3->finish_dgst2),
+ sender,slen,s->s3->tmp.finish_md);
+ s->s3->tmp.finish_md_len = i;
+ memcpy(p, s->s3->tmp.finish_md, i);
+ p+=i;
+ l=i;
+
+#ifdef OPENSSL_SYS_WIN16
+ /* MSVC 1.5 does not clear the top bytes of the word unless
+ * I do this.
+ */
+ l&=0xffff;
+#endif
+
+ *(d++)=SSL3_MT_FINISHED;
+ l2n3(l,d);
+ s->init_num=(int)l+4;
+ s->init_off=0;
+
+ s->state=b;
+ }
+
+ /* SSL3_ST_SEND_xxxxxx_HELLO_B */
+ return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
+ }
+
+int ssl3_get_finished(SSL *s, int a, int b)
+ {
+ int al,i,ok;
+ long n;
+ unsigned char *p;
+
+ /* the mac has already been generated when we received the
+ * change cipher spec message and is in s->s3->tmp.peer_finish_md
+ */
+
+ n=s->method->ssl_get_message(s,
+ a,
+ b,
+ SSL3_MT_FINISHED,
+ 64, /* should actually be 36+4 :-) */
+ &ok);
+
+ if (!ok) return((int)n);
+
+ /* If this occurs, we have missed a message */
+ if (!s->s3->change_cipher_spec)
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS);
+ goto f_err;
+ }
+ s->s3->change_cipher_spec=0;
+
+ p = (unsigned char *)s->init_msg;
+ i = s->s3->tmp.peer_finish_md_len;
+
+ if (i != n)
+ {
+ al=SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH);
+ goto f_err;
+ }
+
+ if (memcmp(p, s->s3->tmp.peer_finish_md, i) != 0)
+ {
+ al=SSL_AD_DECRYPT_ERROR;
+ SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED);
+ goto f_err;
+ }
+
+ return(1);
+f_err:
+ ssl3_send_alert(s,SSL3_AL_FATAL,al);
+ return(0);
+ }
+
+/* for these 2 messages, we need to
+ * ssl->enc_read_ctx re-init
+ * ssl->s3->read_sequence zero
+ * ssl->s3->read_mac_secret re-init
+ * ssl->session->read_sym_enc assign
+ * ssl->session->read_compression assign
+ * ssl->session->read_hash assign
+ */
+int ssl3_send_change_cipher_spec(SSL *s, int a, int b)
+ {
+ unsigned char *p;
+
+ if (s->state == a)
+ {
+ p=(unsigned char *)s->init_buf->data;
+ *p=SSL3_MT_CCS;
+ s->init_num=1;
+ s->init_off=0;
+
+ s->state=b;
+ }
+
+ /* SSL3_ST_CW_CHANGE_B */
+ return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
+ }
+
+unsigned long ssl3_output_cert_chain(SSL *s, X509 *x)
+ {
+ unsigned char *p;
+ int n,i;
+ unsigned long l=7;
+ BUF_MEM *buf;
+ X509_STORE_CTX xs_ctx;
+ X509_OBJECT obj;
+
+ int no_chain;
+
+ if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || s->ctx->extra_certs)
+ no_chain = 1;
+ else
+ no_chain = 0;
+
+ /* TLSv1 sends a chain with nothing in it, instead of an alert */
+ buf=s->init_buf;
+ if (!BUF_MEM_grow_clean(buf,10))
+ {
+ SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+ return(0);
+ }
+ if (x != NULL)
+ {
+ if(!no_chain && !X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL))
+ {
+ SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB);
+ return(0);
+ }
+
+ for (;;)
+ {
+ n=i2d_X509(x,NULL);
+ if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
+ {
+ SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+ return(0);
+ }
+ p=(unsigned char *)&(buf->data[l]);
+ l2n3(n,p);
+ i2d_X509(x,&p);
+ l+=n+3;
+
+ if (no_chain)
+ break;
+
+ if (X509_NAME_cmp(X509_get_subject_name(x),
+ X509_get_issuer_name(x)) == 0) break;
+
+ i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
+ X509_get_issuer_name(x),&obj);
+ if (i <= 0) break;
+ x=obj.data.x509;
+ /* Count is one too high since the X509_STORE_get uped the
+ * ref count */
+ X509_free(x);
+ }
+ if (!no_chain)
+ X509_STORE_CTX_cleanup(&xs_ctx);
+ }
+
+ /* Thawte special :-) */
+ if (s->ctx->extra_certs != NULL)
+ for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++)
+ {
+ x=sk_X509_value(s->ctx->extra_certs,i);
+ n=i2d_X509(x,NULL);
+ if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
+ {
+ SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+ return(0);
+ }
+ p=(unsigned char *)&(buf->data[l]);
+ l2n3(n,p);
+ i2d_X509(x,&p);
+ l+=n+3;
+ }
+
+ l-=7;
+ p=(unsigned char *)&(buf->data[4]);
+ l2n3(l,p);
+ l+=3;
+ p=(unsigned char *)&(buf->data[0]);
+ *(p++)=SSL3_MT_CERTIFICATE;
+ l2n3(l,p);
+ l+=4;
+ return(l);
+ }
+
+/* Obtain handshake message of message type 'mt' (any if mt == -1),
+ * maximum acceptable body length 'max'.
+ * The first four bytes (msg_type and length) are read in state 'st1',
+ * the body is read in state 'stn'.
+ */
+long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok)
+ {
+ unsigned char *p;
+ unsigned long l;
+ long n;
+ int i,al;
+
+ if (s->s3->tmp.reuse_message)
+ {
+ s->s3->tmp.reuse_message=0;
+ if ((mt >= 0) && (s->s3->tmp.message_type != mt))
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
+ goto f_err;
+ }
+ *ok=1;
+ s->init_msg = s->init_buf->data + 4;
+ s->init_num = (int)s->s3->tmp.message_size;
+ return s->init_num;
+ }
+
+ p=(unsigned char *)s->init_buf->data;
+
+ if (s->state == st1) /* s->init_num < 4 */
+ {
+ int skip_message;
+
+ do
+ {
+ while (s->init_num < 4)
+ {
+ i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,
+ &p[s->init_num],4 - s->init_num, 0);
+ if (i <= 0)
+ {
+ s->rwstate=SSL_READING;
+ *ok = 0;
+ return i;
+ }
+ s->init_num+=i;
+ }
+
+ skip_message = 0;
+ if (!s->server)
+ if (p[0] == SSL3_MT_HELLO_REQUEST)
+ /* The server may always send 'Hello Request' messages --
+ * we are doing a handshake anyway now, so ignore them
+ * if their format is correct. Does not count for
+ * 'Finished' MAC. */
+ if (p[1] == 0 && p[2] == 0 &&p[3] == 0)
+ {
+ s->init_num = 0;
+ skip_message = 1;
+
+ if (s->msg_callback)
+ s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, p, 4, s, s->msg_callback_arg);
+ }
+ }
+ while (skip_message);
+
+ /* s->init_num == 4 */
+
+ if ((mt >= 0) && (*p != mt))
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
+ goto f_err;
+ }
+ if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) &&
+ (st1 == SSL3_ST_SR_CERT_A) &&
+ (stn == SSL3_ST_SR_CERT_B))
+ {
+ /* At this point we have got an MS SGC second client
+ * hello (maybe we should always allow the client to
+ * start a new handshake?). We need to restart the mac.
+ * Don't increment {num,total}_renegotiations because
+ * we have not completed the handshake. */
+ ssl3_init_finished_mac(s);
+ }
+
+ s->s3->tmp.message_type= *(p++);
+
+ n2l3(p,l);
+ if (l > (unsigned long)max)
+ {
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ goto f_err;
+ }
+ if (l > (INT_MAX-4)) /* BUF_MEM_grow takes an 'int' parameter */
+ {
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ goto f_err;
+ }
+ if (l && !BUF_MEM_grow_clean(s->init_buf,(int)l+4))
+ {
+ SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
+ goto err;
+ }
+ s->s3->tmp.message_size=l;
+ s->state=stn;
+
+ s->init_msg = s->init_buf->data + 4;
+ s->init_num = 0;
+ }
+
+ /* next state (stn) */
+ p = s->init_msg;
+ n = s->s3->tmp.message_size - s->init_num;
+ while (n > 0)
+ {
+ i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0);
+ if (i <= 0)
+ {
+ s->rwstate=SSL_READING;
+ *ok = 0;
+ return i;
+ }
+ s->init_num += i;
+ n -= i;
+ }
+ ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4);
+ if (s->msg_callback)
+ s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, (size_t)s->init_num + 4, s, s->msg_callback_arg);
+ *ok=1;
+ return s->init_num;
+f_err:
+ ssl3_send_alert(s,SSL3_AL_FATAL,al);
+err:
+ *ok=0;
+ return(-1);
+ }
+
+int ssl_cert_type(X509 *x, EVP_PKEY *pkey)
+ {
+ EVP_PKEY *pk;
+ int ret= -1,i;
+
+ if (pkey == NULL)
+ pk=X509_get_pubkey(x);
+ else
+ pk=pkey;
+ if (pk == NULL) goto err;
+
+ i=pk->type;
+ if (i == EVP_PKEY_RSA)
+ {
+ ret=SSL_PKEY_RSA_ENC;
+ }
+ else if (i == EVP_PKEY_DSA)
+ {
+ ret=SSL_PKEY_DSA_SIGN;
+ }
+#ifndef OPENSSL_NO_EC
+ else if (i == EVP_PKEY_EC)
+ {
+ ret = SSL_PKEY_ECC;
+ }
+#endif
+
+err:
+ if(!pkey) EVP_PKEY_free(pk);
+ return(ret);
+ }
+
+int ssl_verify_alarm_type(long type)
+ {
+ int al;
+
+ switch(type)
+ {
+ case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
+ case X509_V_ERR_UNABLE_TO_GET_CRL:
+ case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
+ al=SSL_AD_UNKNOWN_CA;
+ break;
+ case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
+ case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
+ case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
+ case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
+ case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
+ case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
+ case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
+ case X509_V_ERR_CERT_NOT_YET_VALID:
+ case X509_V_ERR_CRL_NOT_YET_VALID:
+ case X509_V_ERR_CERT_UNTRUSTED:
+ case X509_V_ERR_CERT_REJECTED:
+ al=SSL_AD_BAD_CERTIFICATE;
+ break;
+ case X509_V_ERR_CERT_SIGNATURE_FAILURE:
+ case X509_V_ERR_CRL_SIGNATURE_FAILURE:
+ al=SSL_AD_DECRYPT_ERROR;
+ break;
+ case X509_V_ERR_CERT_HAS_EXPIRED:
+ case X509_V_ERR_CRL_HAS_EXPIRED:
+ al=SSL_AD_CERTIFICATE_EXPIRED;
+ break;
+ case X509_V_ERR_CERT_REVOKED:
+ al=SSL_AD_CERTIFICATE_REVOKED;
+ break;
+ case X509_V_ERR_OUT_OF_MEM:
+ al=SSL_AD_INTERNAL_ERROR;
+ break;
+ case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
+ case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
+ case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
+ case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
+ case X509_V_ERR_CERT_CHAIN_TOO_LONG:
+ case X509_V_ERR_PATH_LENGTH_EXCEEDED:
+ case X509_V_ERR_INVALID_CA:
+ al=SSL_AD_UNKNOWN_CA;
+ break;
+ case X509_V_ERR_APPLICATION_VERIFICATION:
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ break;
+ case X509_V_ERR_INVALID_PURPOSE:
+ al=SSL_AD_UNSUPPORTED_CERTIFICATE;
+ break;
+ default:
+ al=SSL_AD_CERTIFICATE_UNKNOWN;
+ break;
+ }
+ return(al);
+ }
+
+int ssl3_setup_buffers(SSL *s)
+ {
+ unsigned char *p;
+ unsigned int extra;
+ size_t len;
+
+ if (s->s3->rbuf.buf == NULL)
+ {
+ if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
+ extra=SSL3_RT_MAX_EXTRA;
+ else
+ extra=0;
+ len = SSL3_RT_MAX_PACKET_SIZE + extra;
+ if ((p=OPENSSL_malloc(len)) == NULL)
+ goto err;
+ s->s3->rbuf.buf = p;
+ s->s3->rbuf.len = len;
+ }
+
+ if (s->s3->wbuf.buf == NULL)
+ {
+ len = SSL3_RT_MAX_PACKET_SIZE;
+ len += SSL3_RT_HEADER_LENGTH + 256; /* extra space for empty fragment */
+ if ((p=OPENSSL_malloc(len)) == NULL)
+ goto err;
+ s->s3->wbuf.buf = p;
+ s->s3->wbuf.len = len;
+ }
+ s->packet= &(s->s3->rbuf.buf[0]);
+ return(1);
+err:
+ SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);
+ return(0);
+ }
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