Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/evp/bio_md.c

Index: openssl/crypto/evp/bio_md.c
diff --git a/openssl/crypto/evp/bio_md.c b/openssl/crypto/evp/bio_md.c
deleted file mode 100644
index 144fdfd56a0ec047d9ccd41bae96ba04ed3ea94e..0000000000000000000000000000000000000000
--- a/openssl/crypto/evp/bio_md.c
+++ /dev/null
@@ -1,275 +0,0 @@
-/* crypto/evp/bio_md.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.]
- */
-
-#include <stdio.h>
-#include <errno.h>
-#include "cryptlib.h"
-#include <openssl/buffer.h>
-#include <openssl/evp.h>
-
-/* BIO_put and BIO_get both add to the digest,
- * BIO_gets returns the digest */
-
-static int md_write(BIO *h, char const *buf, int num);
-static int md_read(BIO *h, char *buf, int size);
-/*static int md_puts(BIO *h, const char *str); */
-static int md_gets(BIO *h, char *str, int size);
-static long md_ctrl(BIO *h, int cmd, long arg1, void *arg2);
-static int md_new(BIO *h);
-static int md_free(BIO *data);
-static long md_callback_ctrl(BIO *h,int cmd,bio_info_cb *fp);
-
-static BIO_METHOD methods_md=
-	{
-	BIO_TYPE_MD,"message digest",
-	md_write,
-	md_read,
-	NULL, /* md_puts, */
-	md_gets,
-	md_ctrl,
-	md_new,
-	md_free,
-	md_callback_ctrl,
-	};
-
-BIO_METHOD *BIO_f_md(void)
-	{
-	return(&methods_md);
-	}
-
-static int md_new(BIO *bi)
-	{
-	EVP_MD_CTX *ctx;
-
-	ctx=EVP_MD_CTX_create();
-	if (ctx == NULL) return(0);
-
-	bi->init=0;
-	bi->ptr=(char *)ctx;
-	bi->flags=0;
-	return(1);
-	}
-
-static int md_free(BIO *a)
-	{
-	if (a == NULL) return(0);
-	EVP_MD_CTX_destroy(a->ptr);
-	a->ptr=NULL;
-	a->init=0;
-	a->flags=0;
-	return(1);
-	}
-	
-static int md_read(BIO *b, char *out, int outl)
-	{
-	int ret=0;
-	EVP_MD_CTX *ctx;
-
-	if (out == NULL) return(0);
-	ctx=b->ptr;
-
-	if ((ctx == NULL) || (b->next_bio == NULL)) return(0);
-
-	ret=BIO_read(b->next_bio,out,outl);
-	if (b->init)
-		{
-		if (ret > 0)
-			{
-			if (EVP_DigestUpdate(ctx,(unsigned char *)out,
-				(unsigned int)ret)<=0) return (-1);
-			}
-		}
-	BIO_clear_retry_flags(b);
-	BIO_copy_next_retry(b);
-	return(ret);
-	}
-
-static int md_write(BIO *b, const char *in, int inl)
-	{
-	int ret=0;
-	EVP_MD_CTX *ctx;
-
-	if ((in == NULL) || (inl <= 0)) return(0);
-	ctx=b->ptr;
-
-	if ((ctx != NULL) && (b->next_bio != NULL))
-		ret=BIO_write(b->next_bio,in,inl);
-	if (b->init)
-		{
-		if (ret > 0)
-			{
-			if (!EVP_DigestUpdate(ctx,(const unsigned char *)in,
-				(unsigned int)ret))
-				{
-				BIO_clear_retry_flags(b);
-				return 0;
-				}
-			}
-		}
-	if(b->next_bio != NULL)
-		{
-		BIO_clear_retry_flags(b);
-		BIO_copy_next_retry(b);
-		}
-	return(ret);
-	}
-
-static long md_ctrl(BIO *b, int cmd, long num, void *ptr)
-	{
-	EVP_MD_CTX *ctx,*dctx,**pctx;
-	const EVP_MD **ppmd;
-	EVP_MD *md;
-	long ret=1;
-	BIO *dbio;
-
-	ctx=b->ptr;
-
-	switch (cmd)
-		{
-	case BIO_CTRL_RESET:
-		if (b->init)
-			ret = EVP_DigestInit_ex(ctx,ctx->digest, NULL);
-		else
-			ret=0;
-		if (ret > 0)
-			ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
-		break;
-	case BIO_C_GET_MD:
-		if (b->init)
-			{
-			ppmd=ptr;
-			*ppmd=ctx->digest;
-			}
-		else
-			ret=0;
-		break;
-	case BIO_C_GET_MD_CTX:
-		pctx=ptr;
-		*pctx=ctx;
-		b->init = 1;
-		break;
-	case BIO_C_SET_MD_CTX:
-		if (b->init)
-			b->ptr=ptr;
-		else
-			ret=0;
-		break;
-	case BIO_C_DO_STATE_MACHINE:
-		BIO_clear_retry_flags(b);
-		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
-		BIO_copy_next_retry(b);
-		break;
-
-	case BIO_C_SET_MD:
-		md=ptr;
-		ret = EVP_DigestInit_ex(ctx,md, NULL);
-		if (ret > 0)
-			b->init=1;
-		break;
-	case BIO_CTRL_DUP:
-		dbio=ptr;
-		dctx=dbio->ptr;
-		if (!EVP_MD_CTX_copy_ex(dctx,ctx))
-			return 0;
-		b->init=1;
-		break;
-	default:
-		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
-		break;
-		}
-	return(ret);
-	}
-
-static long md_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
-	{
-	long ret=1;
-
-	if (b->next_bio == NULL) return(0);
-	switch (cmd)
-		{
-	default:
-		ret=BIO_callback_ctrl(b->next_bio,cmd,fp);
-		break;
-		}
-	return(ret);
-	}
-
-static int md_gets(BIO *bp, char *buf, int size)
-	{
-	EVP_MD_CTX *ctx;
-	unsigned int ret;
-
-
-	ctx=bp->ptr;
-	if (size < ctx->digest->md_size)
-		return(0);
-	if (EVP_DigestFinal_ex(ctx,(unsigned char *)buf,&ret)<=0) 
-		return -1;
-		
-	return((int)ret);
-	}
-
-/*
-static int md_puts(bp,str)
-BIO *bp;
-char *str;
-	{
-	return(-1);
-	}
-*/
-