Delete bundled copy of OpenSSL and replace with README.

openssl/ssl/s2_pkt.c

Index: openssl/ssl/s2_pkt.c
diff --git a/openssl/ssl/s2_pkt.c b/openssl/ssl/s2_pkt.c
deleted file mode 100644
index 8bb6ab8baa33501dcd6f0991d53ad80b3d9361aa..0000000000000000000000000000000000000000
--- a/openssl/ssl/s2_pkt.c
+++ /dev/null
@@ -1,743 +0,0 @@
-/* ssl/s2_pkt.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) 1998-2001 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).
- *
- */
-
-#include "ssl_locl.h"
-#ifndef OPENSSL_NO_SSL2
-#include <stdio.h>
-#include <errno.h>
-#define USE_SOCKETS
-
-static int read_n(SSL *s,unsigned int n,unsigned int max,unsigned int extend);
-static int n_do_ssl_write(SSL *s, const unsigned char *buf, unsigned int len);
-static int write_pending(SSL *s, const unsigned char *buf, unsigned int len);
-static int ssl_mt_error(int n);
-
-
-/* SSL 2.0 imlementation for SSL_read/SSL_peek -
- * This routine will return 0 to len bytes, decrypted etc if required.
- */
-static int ssl2_read_internal(SSL *s, void *buf, int len, int peek)
-	{
-	int n;
-	unsigned char mac[MAX_MAC_SIZE];
-	unsigned char *p;
-	int i;
-	int mac_size;
-
- ssl2_read_again:
-	if (SSL_in_init(s) && !s->in_handshake)
-		{
-		n=s->handshake_func(s);
-		if (n < 0) return(n);
-		if (n == 0)
-			{
-			SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_SSL_HANDSHAKE_FAILURE);
-			return(-1);
-			}
-		}
-
-	clear_sys_error();
-	s->rwstate=SSL_NOTHING;
-	if (len <= 0) return(len);
-
-	if (s->s2->ract_data_length != 0) /* read from buffer */
-		{
-		if (len > s->s2->ract_data_length)
-			n=s->s2->ract_data_length;
-		else
-			n=len;
-
-		memcpy(buf,s->s2->ract_data,(unsigned int)n);
-		if (!peek)
-			{
-			s->s2->ract_data_length-=n;
-			s->s2->ract_data+=n;
-			if (s->s2->ract_data_length == 0)
-				s->rstate=SSL_ST_READ_HEADER;
-			}
-
-		return(n);
-		}
-
-	/* s->s2->ract_data_length == 0
-	 * 
-	 * Fill the buffer, then goto ssl2_read_again.
-	 */
-
-	if (s->rstate == SSL_ST_READ_HEADER)
-		{
-		if (s->first_packet)
-			{
-			n=read_n(s,5,SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2,0);
-			if (n <= 0) return(n); /* error or non-blocking */
-			s->first_packet=0;
-			p=s->packet;
-			if (!((p[0] & 0x80) && (
-				(p[2] == SSL2_MT_CLIENT_HELLO) ||
-				(p[2] == SSL2_MT_SERVER_HELLO))))
-				{
-				SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_NON_SSLV2_INITIAL_PACKET);
-				return(-1);
-				}
-			}
-		else
-			{
-			n=read_n(s,2,SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2,0);
-			if (n <= 0) return(n); /* error or non-blocking */
-			}
-		/* part read stuff */
-
-		s->rstate=SSL_ST_READ_BODY;
-		p=s->packet;
-		/* Do header */
-		/*s->s2->padding=0;*/
-		s->s2->escape=0;
-		s->s2->rlength=(((unsigned int)p[0])<<8)|((unsigned int)p[1]);
-		if ((p[0] & TWO_BYTE_BIT))		/* Two byte header? */
-			{
-			s->s2->three_byte_header=0;
-			s->s2->rlength&=TWO_BYTE_MASK;	
-			}
-		else
-			{
-			s->s2->three_byte_header=1;
-			s->s2->rlength&=THREE_BYTE_MASK;
-
-			/* security >s2->escape */
-			s->s2->escape=((p[0] & SEC_ESC_BIT))?1:0;
-			}
-		}
-
-	if (s->rstate == SSL_ST_READ_BODY)
-		{
-		n=s->s2->rlength+2+s->s2->three_byte_header;
-		if (n > (int)s->packet_length)
-			{
-			n-=s->packet_length;
-			i=read_n(s,(unsigned int)n,(unsigned int)n,1);
-			if (i <= 0) return(i); /* ERROR */
-			}
-
-		p= &(s->packet[2]);
-		s->rstate=SSL_ST_READ_HEADER;
-		if (s->s2->three_byte_header)
-			s->s2->padding= *(p++);
-		else	s->s2->padding=0;
-
-		/* Data portion */
-		if (s->s2->clear_text)
-			{
-			mac_size = 0;
-			s->s2->mac_data=p;
-			s->s2->ract_data=p;
-			if (s->s2->padding)
-				{
-				SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_ILLEGAL_PADDING);
-				return(-1);
-				}
-			}
-		else
-			{
-			mac_size=EVP_MD_CTX_size(s->read_hash);
-			if (mac_size < 0)
-				return -1;
-			OPENSSL_assert(mac_size <= MAX_MAC_SIZE);
-			s->s2->mac_data=p;
-			s->s2->ract_data= &p[mac_size];
-			if (s->s2->padding + mac_size > s->s2->rlength)
-				{
-				SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_ILLEGAL_PADDING);
-				return(-1);
-				}
-			}
-
-		s->s2->ract_data_length=s->s2->rlength;
-		/* added a check for length > max_size in case
-		 * encryption was not turned on yet due to an error */
-		if ((!s->s2->clear_text) &&
-			(s->s2->rlength >= (unsigned int)mac_size))
-			{
-			ssl2_enc(s,0);
-			s->s2->ract_data_length-=mac_size;
-			ssl2_mac(s,mac,0);
-			s->s2->ract_data_length-=s->s2->padding;
-			if (	(CRYPTO_memcmp(mac,s->s2->mac_data,mac_size) != 0) ||
-				(s->s2->rlength%EVP_CIPHER_CTX_block_size(s->enc_read_ctx) != 0))
-				{
-				SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_BAD_MAC_DECODE);
-				return(-1);
-				}
-			}
-		INC32(s->s2->read_sequence); /* expect next number */
-		/* s->s2->ract_data is now available for processing */
-
-		/* Possibly the packet that we just read had 0 actual data bytes.
-		 * (SSLeay/OpenSSL itself never sends such packets; see ssl2_write.)
-		 * In this case, returning 0 would be interpreted by the caller
-		 * as indicating EOF, so it's not a good idea.  Instead, we just
-		 * continue reading; thus ssl2_read_internal may have to process
-		 * multiple packets before it can return.
-		 *
-		 * [Note that using select() for blocking sockets *never* guarantees
-		 * that the next SSL_read will not block -- the available
-		 * data may contain incomplete packets, and except for SSL 2,
-		 * renegotiation can confuse things even more.] */
-
-		goto ssl2_read_again; /* This should really be
-		                       * "return ssl2_read(s,buf,len)",
-		                       * but that would allow for
-		                       * denial-of-service attacks if a
-		                       * C compiler is used that does not
-		                       * recognize end-recursion. */
-		}
-	else
-		{
-		SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_BAD_STATE);
-			return(-1);
-		}
-	}
-
-int ssl2_read(SSL *s, void *buf, int len)
-	{
-	return ssl2_read_internal(s, buf, len, 0);
-	}
-
-int ssl2_peek(SSL *s, void *buf, int len)
-	{
-	return ssl2_read_internal(s, buf, len, 1);
-	}
-
-static int read_n(SSL *s, unsigned int n, unsigned int max,
-	     unsigned int extend)
-	{
-	int i,off,newb;
-
-	/* if there is stuff still in the buffer from a previous read,
-	 * and there is more than we want, take some. */
-	if (s->s2->rbuf_left >= (int)n)
-		{
-		if (extend)
-			s->packet_length+=n;
-		else
-			{
-			s->packet= &(s->s2->rbuf[s->s2->rbuf_offs]);
-			s->packet_length=n;
-			}
-		s->s2->rbuf_left-=n;
-		s->s2->rbuf_offs+=n;
-		return(n);
-		}
-
-	if (!s->read_ahead) max=n;
-	if (max > (unsigned int)(SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2))
-		max=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2;
-	
-
-	/* Else we want more than we have.
-	 * First, if there is some left or we want to extend */
-	off=0;
-	if ((s->s2->rbuf_left != 0) || ((s->packet_length != 0) && extend))
-		{
-		newb=s->s2->rbuf_left;
-		if (extend)
-			{
-			off=s->packet_length;
-			if (s->packet != s->s2->rbuf)
-				memcpy(s->s2->rbuf,s->packet,
-					(unsigned int)newb+off);
-			}
-		else if (s->s2->rbuf_offs != 0)
-			{
-			memcpy(s->s2->rbuf,&(s->s2->rbuf[s->s2->rbuf_offs]),
-				(unsigned int)newb);
-			s->s2->rbuf_offs=0;
-			}
-		s->s2->rbuf_left=0;
-		}
-	else
-		newb=0;
-
-	/* off is the offset to start writing too.
-	 * r->s2->rbuf_offs is the 'unread data', now 0. 
-	 * newb is the number of new bytes so far
-	 */
-	s->packet=s->s2->rbuf;
-	while (newb < (int)n)
-		{
-		clear_sys_error();
-		if (s->rbio != NULL)
-			{
-			s->rwstate=SSL_READING;
-			i=BIO_read(s->rbio,(char *)&(s->s2->rbuf[off+newb]),
-				max-newb);
-			}
-		else
-			{
-			SSLerr(SSL_F_READ_N,SSL_R_READ_BIO_NOT_SET);
-			i= -1;
-			}
-#ifdef PKT_DEBUG
-		if (s->debug & 0x01) sleep(1);
-#endif
-		if (i <= 0)
-			{
-			s->s2->rbuf_left+=newb;
-			return(i);
-			}
-		newb+=i;
-		}
-
-	/* record unread data */
-	if (newb > (int)n)
-		{
-		s->s2->rbuf_offs=n+off;
-		s->s2->rbuf_left=newb-n;
-		}
-	else
-		{
-		s->s2->rbuf_offs=0;
-		s->s2->rbuf_left=0;
-		}
-	if (extend)
-		s->packet_length+=n;
-	else
-		s->packet_length=n;
-	s->rwstate=SSL_NOTHING;
-	return(n);
-	}
-
-int ssl2_write(SSL *s, const void *_buf, int len)
-	{
-	const unsigned char *buf=_buf;
-	unsigned int n,tot;
-	int i;
-
-	if (SSL_in_init(s) && !s->in_handshake)
-		{
-		i=s->handshake_func(s);
-		if (i < 0) return(i);
-		if (i == 0)
-			{
-			SSLerr(SSL_F_SSL2_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE);
-			return(-1);
-			}
-		}
-
-	if (s->error)
-		{
-		ssl2_write_error(s);
-		if (s->error)
-			return(-1);
-		}
-
-	clear_sys_error();
-	s->rwstate=SSL_NOTHING;
-	if (len <= 0) return(len);
-
-	tot=s->s2->wnum;
-	s->s2->wnum=0;
-
-	n=(len-tot);
-	for (;;)
-		{
-		i=n_do_ssl_write(s,&(buf[tot]),n);
-		if (i <= 0)
-			{
-			s->s2->wnum=tot;
-			return(i);
-			}
-		if ((i == (int)n) ||
-			(s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE))
-			{
-			return(tot+i);
-			}
-		
-		n-=i;
-		tot+=i;
-		}
-	}
-
-static int write_pending(SSL *s, const unsigned char *buf, unsigned int len)
-	{
-	int i;
-
-	/* s->s2->wpend_len != 0 MUST be true. */
-
-	/* check that they have given us the same buffer to
-	 * write */
-	if ((s->s2->wpend_tot > (int)len) ||
-		((s->s2->wpend_buf != buf) &&
-		 !(s->mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER)))
-		{
-		SSLerr(SSL_F_WRITE_PENDING,SSL_R_BAD_WRITE_RETRY);
-		return(-1);
-		}
-
-	for (;;)
-		{
-		clear_sys_error();
-		if (s->wbio != NULL)
-			{
-			s->rwstate=SSL_WRITING;
-			i=BIO_write(s->wbio,
-				(char *)&(s->s2->write_ptr[s->s2->wpend_off]),
-				(unsigned int)s->s2->wpend_len);
-			}
-		else
-			{
-			SSLerr(SSL_F_WRITE_PENDING,SSL_R_WRITE_BIO_NOT_SET);
-			i= -1;
-			}
-#ifdef PKT_DEBUG
-		if (s->debug & 0x01) sleep(1);
-#endif
-		if (i == s->s2->wpend_len)
-			{
-			s->s2->wpend_len=0;
-			s->rwstate=SSL_NOTHING;
-			return(s->s2->wpend_ret);
-			}
-		else if (i <= 0)
-			return(i);
-		s->s2->wpend_off+=i;
-		s->s2->wpend_len-=i;
-		}
-	}
-
-static int n_do_ssl_write(SSL *s, const unsigned char *buf, unsigned int len)
-	{
-	unsigned int j,k,olen,p,bs;
-	int mac_size;
-	register unsigned char *pp;
-
-	olen=len;
-
-	/* first check if there is data from an encryption waiting to
-	 * be sent - it must be sent because the other end is waiting.
-	 * This will happen with non-blocking IO.  We print it and then
-	 * return.
-	 */
-	if (s->s2->wpend_len != 0) return(write_pending(s,buf,len));
-
-	/* set mac_size to mac size */
-	if (s->s2->clear_text)
-		mac_size=0;
-	else
-		{
-		mac_size=EVP_MD_CTX_size(s->write_hash);
-		if (mac_size < 0)
-			return -1;
-		}
-
-	/* lets set the pad p */
-	if (s->s2->clear_text)
-		{
-		if (len > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER)
-			len=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER;
-		p=0;
-		s->s2->three_byte_header=0;
-		/* len=len; */
-		}
-	else
-		{
-		bs=EVP_CIPHER_CTX_block_size(s->enc_read_ctx);
-		j=len+mac_size;
-		/* Two-byte headers allow for a larger record length than
-		 * three-byte headers, but we can't use them if we need
-		 * padding or if we have to set the escape bit. */
-		if ((j > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) &&
-			(!s->s2->escape))
-			{
-			if (j > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER)
-				j=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER;
-			/* set k to the max number of bytes with 2
-			 * byte header */
-			k=j-(j%bs);
-			/* how many data bytes? */
-			len=k-mac_size; 
-			s->s2->three_byte_header=0;
-			p=0;
-			}
-		else if ((bs <= 1) && (!s->s2->escape))
-			{
-			/* j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER, thus
-			 * j < SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER */
-			s->s2->three_byte_header=0;
-			p=0;
-			}
-		else /* we may have to use a 3 byte header */
-			{
-			/* If s->s2->escape is not set, then
-			 * j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER, and thus
-			 * j < SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER. */
-			p=(j%bs);
-			p=(p == 0)?0:(bs-p);
-			if (s->s2->escape)
-				{
-				s->s2->three_byte_header=1;
-				if (j > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)
-					j=SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER;
-				}
-			else
-				s->s2->three_byte_header=(p == 0)?0:1;
-			}
-		}
-
-	/* Now
-	 *      j <= SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER
-	 * holds, and if s->s2->three_byte_header is set, then even
-	 *      j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER.
-	 */
-
-	/* mac_size is the number of MAC bytes
-	 * len is the number of data bytes we are going to send
-	 * p is the number of padding bytes
-	 * (if it is a two-byte header, then p == 0) */
-
-	s->s2->wlength=len;
-	s->s2->padding=p;
-	s->s2->mac_data= &(s->s2->wbuf[3]);
-	s->s2->wact_data= &(s->s2->wbuf[3+mac_size]);
-	/* we copy the data into s->s2->wbuf */
-	memcpy(s->s2->wact_data,buf,len);
-	if (p)
-		memset(&(s->s2->wact_data[len]),0,p); /* arbitrary padding */
-
-	if (!s->s2->clear_text)
-		{
-		s->s2->wact_data_length=len+p;
-		ssl2_mac(s,s->s2->mac_data,1);
-		s->s2->wlength+=p+mac_size;
-		ssl2_enc(s,1);
-		}
-
-	/* package up the header */
-	s->s2->wpend_len=s->s2->wlength;
-	if (s->s2->three_byte_header) /* 3 byte header */
-		{
-		pp=s->s2->mac_data;
-		pp-=3;
-		pp[0]=(s->s2->wlength>>8)&(THREE_BYTE_MASK>>8);
-		if (s->s2->escape) pp[0]|=SEC_ESC_BIT;
-		pp[1]=s->s2->wlength&0xff;
-		pp[2]=s->s2->padding;
-		s->s2->wpend_len+=3;
-		}
-	else
-		{
-		pp=s->s2->mac_data;
-		pp-=2;
-		pp[0]=((s->s2->wlength>>8)&(TWO_BYTE_MASK>>8))|TWO_BYTE_BIT;
-		pp[1]=s->s2->wlength&0xff;
-		s->s2->wpend_len+=2;
-		}
-	s->s2->write_ptr=pp;
-	
-	INC32(s->s2->write_sequence); /* expect next number */
-
-	/* lets try to actually write the data */
-	s->s2->wpend_tot=olen;
-	s->s2->wpend_buf=buf;
-
-	s->s2->wpend_ret=len;
-
-	s->s2->wpend_off=0;
-	return(write_pending(s,buf,olen));
-	}
-
-int ssl2_part_read(SSL *s, unsigned long f, int i)
-	{
-	unsigned char *p;
-	int j;
-
-	if (i < 0)
-		{
-		/* ssl2_return_error(s); */
-		/* for non-blocking io,
-		 * this is not necessarily fatal */
-		return(i);
-		}
-	else
-		{
-		s->init_num+=i;
-
-		/* Check for error.  While there are recoverable errors,
-		 * this function is not called when those must be expected;
-		 * any error detected here is fatal. */
-		if (s->init_num >= 3)
-			{
-			p=(unsigned char *)s->init_buf->data;
-			if (p[0] == SSL2_MT_ERROR)
-				{
-				j=(p[1]<<8)|p[2];
-				SSLerr((int)f,ssl_mt_error(j));
-				s->init_num -= 3;
-				if (s->init_num > 0)
-					memmove(p, p+3, s->init_num);
-				}
-			}
-
-		/* If it's not an error message, we have some error anyway --
-		 * the message was shorter than expected.  This too is treated
-		 * as fatal (at least if SSL_get_error is asked for its opinion). */
-		return(0);
-		}
-	}
-
-int ssl2_do_write(SSL *s)
-	{
-	int ret;
-
-	ret=ssl2_write(s,&s->init_buf->data[s->init_off],s->init_num);
-	if (ret == s->init_num)
-		{
-		if (s->msg_callback)
-			s->msg_callback(1, s->version, 0, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg);
-		return(1);
-		}
-	if (ret < 0)
-		return(-1);
-	s->init_off+=ret;
-	s->init_num-=ret;
-	return(0);
-	}
-
-static int ssl_mt_error(int n)
-	{
-	int ret;
-
-	switch (n)
-		{
-	case SSL2_PE_NO_CIPHER:
-		ret=SSL_R_PEER_ERROR_NO_CIPHER;
-		break;
-	case SSL2_PE_NO_CERTIFICATE:
-		ret=SSL_R_PEER_ERROR_NO_CERTIFICATE;
-		break;
-	case SSL2_PE_BAD_CERTIFICATE:
-		ret=SSL_R_PEER_ERROR_CERTIFICATE;
-		break;
-	case SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE:
-		ret=SSL_R_PEER_ERROR_UNSUPPORTED_CERTIFICATE_TYPE;
-		break;
-	default:
-		ret=SSL_R_UNKNOWN_REMOTE_ERROR_TYPE;
-		break;
-		}
-	return(ret);
-	}
-#else /* !OPENSSL_NO_SSL2 */
-
-# if PEDANTIC
-static void *dummy=&dummy;
-# endif
-
-#endif