Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/hmac/hmac.c

Index: openssl/crypto/hmac/hmac.c
diff --git a/openssl/crypto/hmac/hmac.c b/openssl/crypto/hmac/hmac.c
deleted file mode 100644
index ba27cbf56f2e9f843627795da68240240b67f5d9..0000000000000000000000000000000000000000
--- a/openssl/crypto/hmac/hmac.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/* crypto/hmac/hmac.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 <stdlib.h>
-#include <string.h>
-#include "cryptlib.h"
-#include <openssl/hmac.h>
-
-#ifdef OPENSSL_FIPS
-#include <openssl/fips.h>
-#endif
-
-int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
-		  const EVP_MD *md, ENGINE *impl)
-	{
-	int i,j,reset=0;
-	unsigned char pad[HMAC_MAX_MD_CBLOCK];
-
-#ifdef OPENSSL_FIPS
-	if (FIPS_mode())
-		{
-		/* If we have an ENGINE need to allow non FIPS */
-		if ((impl || ctx->i_ctx.engine)
-			&&  !(ctx->i_ctx.flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW))
-			{
-			EVPerr(EVP_F_HMAC_INIT_EX, EVP_R_DISABLED_FOR_FIPS);
-			return 0;
-			}
-		/* Other algorithm blocking will be done in FIPS_cmac_init,
-		 * via FIPS_hmac_init_ex().
-		 */
-		if (!impl && !ctx->i_ctx.engine)
-			return FIPS_hmac_init_ex(ctx, key, len, md, NULL);
-		}
-#endif
-
-	if (md != NULL)
-		{
-		reset=1;
-		ctx->md=md;
-		}
-	else
-		md=ctx->md;
-
-	if (key != NULL)
-		{
-		reset=1;
-		j=EVP_MD_block_size(md);
-		OPENSSL_assert(j <= (int)sizeof(ctx->key));
-		if (j < len)
-			{
-			if (!EVP_DigestInit_ex(&ctx->md_ctx,md, impl))
-				goto err;
-			if (!EVP_DigestUpdate(&ctx->md_ctx,key,len))
-				goto err;
-			if (!EVP_DigestFinal_ex(&(ctx->md_ctx),ctx->key,
-				&ctx->key_length))
-				goto err;
-			}
-		else
-			{
-			OPENSSL_assert(len>=0 && len<=(int)sizeof(ctx->key));
-			memcpy(ctx->key,key,len);
-			ctx->key_length=len;
-			}
-		if(ctx->key_length != HMAC_MAX_MD_CBLOCK)
-			memset(&ctx->key[ctx->key_length], 0,
-				HMAC_MAX_MD_CBLOCK - ctx->key_length);
-		}
-
-	if (reset)	
-		{
-		for (i=0; i<HMAC_MAX_MD_CBLOCK; i++)
-			pad[i]=0x36^ctx->key[i];
-		if (!EVP_DigestInit_ex(&ctx->i_ctx,md, impl))
-			goto err;
-		if (!EVP_DigestUpdate(&ctx->i_ctx,pad,EVP_MD_block_size(md)))
-			goto err;
-
-		for (i=0; i<HMAC_MAX_MD_CBLOCK; i++)
-			pad[i]=0x5c^ctx->key[i];
-		if (!EVP_DigestInit_ex(&ctx->o_ctx,md, impl))
-			goto err;
-		if (!EVP_DigestUpdate(&ctx->o_ctx,pad,EVP_MD_block_size(md)))
-			goto err;
-		}
-	if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->i_ctx))
-			goto err;
-	return 1;
-	err:
-	return 0;
-	}
-
-int HMAC_Init(HMAC_CTX *ctx, const void *key, int len, const EVP_MD *md)
-	{
-	if(key && md)
-	    HMAC_CTX_init(ctx);
-	return HMAC_Init_ex(ctx,key,len,md, NULL);
-	}
-
-int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len)
-	{
-#ifdef OPENSSL_FIPS
-	if (FIPS_mode() && !ctx->i_ctx.engine)
-		return FIPS_hmac_update(ctx, data, len);
-#endif
-	return EVP_DigestUpdate(&ctx->md_ctx,data,len);
-	}
-
-int HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len)
-	{
-	unsigned int i;
-	unsigned char buf[EVP_MAX_MD_SIZE];
-#ifdef OPENSSL_FIPS
-	if (FIPS_mode() && !ctx->i_ctx.engine)
-		return FIPS_hmac_final(ctx, md, len);
-#endif
-
-	if (!EVP_DigestFinal_ex(&ctx->md_ctx,buf,&i))
-		goto err;
-	if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->o_ctx))
-		goto err;
-	if (!EVP_DigestUpdate(&ctx->md_ctx,buf,i))
-		goto err;
-	if (!EVP_DigestFinal_ex(&ctx->md_ctx,md,len))
-		goto err;
-	return 1;
-	err:
-	return 0;
-	}
-
-void HMAC_CTX_init(HMAC_CTX *ctx)
-	{
-	EVP_MD_CTX_init(&ctx->i_ctx);
-	EVP_MD_CTX_init(&ctx->o_ctx);
-	EVP_MD_CTX_init(&ctx->md_ctx);
-	}
-
-int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)
-	{
-	if (!EVP_MD_CTX_copy(&dctx->i_ctx, &sctx->i_ctx))
-		goto err;
-	if (!EVP_MD_CTX_copy(&dctx->o_ctx, &sctx->o_ctx))
-		goto err;
-	if (!EVP_MD_CTX_copy(&dctx->md_ctx, &sctx->md_ctx))
-		goto err;
-	memcpy(dctx->key, sctx->key, HMAC_MAX_MD_CBLOCK);
-	dctx->key_length = sctx->key_length;
-	dctx->md = sctx->md;
-	return 1;
-	err:
-	return 0;
-	}
-
-void HMAC_CTX_cleanup(HMAC_CTX *ctx)
-	{
-#ifdef OPENSSL_FIPS
-	if (FIPS_mode() && !ctx->i_ctx.engine)
-		{
-		FIPS_hmac_ctx_cleanup(ctx);
-		return;
-		}
-#endif
-	EVP_MD_CTX_cleanup(&ctx->i_ctx);
-	EVP_MD_CTX_cleanup(&ctx->o_ctx);
-	EVP_MD_CTX_cleanup(&ctx->md_ctx);
-	memset(ctx,0,sizeof *ctx);
-	}
-
-unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
-		    const unsigned char *d, size_t n, unsigned char *md,
-		    unsigned int *md_len)
-	{
-	HMAC_CTX c;
-	static unsigned char m[EVP_MAX_MD_SIZE];
-
-	if (md == NULL) md=m;
-	HMAC_CTX_init(&c);
-	if (!HMAC_Init(&c,key,key_len,evp_md))
-		goto err;
-	if (!HMAC_Update(&c,d,n))
-		goto err;
-	if (!HMAC_Final(&c,md,md_len))
-		goto err;
-	HMAC_CTX_cleanup(&c);
-	return md;
-	err:
-	return NULL;
-	}
-
-void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags)
-	{
-	EVP_MD_CTX_set_flags(&ctx->i_ctx, flags);
-	EVP_MD_CTX_set_flags(&ctx->o_ctx, flags);
-	EVP_MD_CTX_set_flags(&ctx->md_ctx, flags);
-	}