Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/rand/rand_lib.c

Index: openssl/crypto/rand/rand_lib.c
diff --git a/openssl/crypto/rand/rand_lib.c b/openssl/crypto/rand/rand_lib.c
deleted file mode 100644
index 476a0cd187ee7629526042e5de5728e6277a4b7c..0000000000000000000000000000000000000000
--- a/openssl/crypto/rand/rand_lib.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/* crypto/rand/rand_lib.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 <time.h>
-#include "cryptlib.h"
-#include <openssl/rand.h>
-
-#ifndef OPENSSL_NO_ENGINE
-#include <openssl/engine.h>
-#endif
-
-#ifdef OPENSSL_FIPS
-#include <openssl/fips.h>
-#include <openssl/fips_rand.h>
-#endif
-
-#ifndef OPENSSL_NO_ENGINE
-/* non-NULL if default_RAND_meth is ENGINE-provided */
-static ENGINE *funct_ref =NULL;
-#endif
-static const RAND_METHOD *default_RAND_meth = NULL;
-
-int RAND_set_rand_method(const RAND_METHOD *meth)
-	{
-#ifndef OPENSSL_NO_ENGINE
-	if(funct_ref)
-		{
-		ENGINE_finish(funct_ref);
-		funct_ref = NULL;
-		}
-#endif
-	default_RAND_meth = meth;
-	return 1;
-	}
-
-const RAND_METHOD *RAND_get_rand_method(void)
-	{
-	if (!default_RAND_meth)
-		{
-#ifndef OPENSSL_NO_ENGINE
-		ENGINE *e = ENGINE_get_default_RAND();
-		if(e)
-			{
-			default_RAND_meth = ENGINE_get_RAND(e);
-			if(!default_RAND_meth)
-				{
-				ENGINE_finish(e);
-				e = NULL;
-				}
-			}
-		if(e)
-			funct_ref = e;
-		else
-#endif
-			default_RAND_meth = RAND_SSLeay();
-		}
-	return default_RAND_meth;
-	}
-
-#ifndef OPENSSL_NO_ENGINE
-int RAND_set_rand_engine(ENGINE *engine)
-	{
-	const RAND_METHOD *tmp_meth = NULL;
-	if(engine)
-		{
-		if(!ENGINE_init(engine))
-			return 0;
-		tmp_meth = ENGINE_get_RAND(engine);
-		if(!tmp_meth)
-			{
-			ENGINE_finish(engine);
-			return 0;
-			}
-		}
-	/* This function releases any prior ENGINE so call it first */
-	RAND_set_rand_method(tmp_meth);
-	funct_ref = engine;
-	return 1;
-	}
-#endif
-
-void RAND_cleanup(void)
-	{
-	const RAND_METHOD *meth = RAND_get_rand_method();
-	if (meth && meth->cleanup)
-		meth->cleanup();
-	RAND_set_rand_method(NULL);
-	}
-
-void RAND_seed(const void *buf, int num)
-	{
-	const RAND_METHOD *meth = RAND_get_rand_method();
-	if (meth && meth->seed)
-		meth->seed(buf,num);
-	}
-
-void RAND_add(const void *buf, int num, double entropy)
-	{
-	const RAND_METHOD *meth = RAND_get_rand_method();
-	if (meth && meth->add)
-		meth->add(buf,num,entropy);
-	}
-
-int RAND_bytes(unsigned char *buf, int num)
-	{
-	const RAND_METHOD *meth = RAND_get_rand_method();
-	if (meth && meth->bytes)
-		return meth->bytes(buf,num);
-	return(-1);
-	}
-
-int RAND_pseudo_bytes(unsigned char *buf, int num)
-	{
-	const RAND_METHOD *meth = RAND_get_rand_method();
-	if (meth && meth->pseudorand)
-		return meth->pseudorand(buf,num);
-	return(-1);
-	}
-
-int RAND_status(void)
-	{
-	const RAND_METHOD *meth = RAND_get_rand_method();
-	if (meth && meth->status)
-		return meth->status();
-	return 0;
-	}
-
-#ifdef OPENSSL_FIPS
-
-/* FIPS DRBG initialisation code. This sets up the DRBG for use by the
- * rest of OpenSSL. 
- */
-
-/* Entropy gatherer: use standard OpenSSL PRNG to seed (this will gather
- * entropy internally through RAND_poll().
- */
-
-static size_t drbg_get_entropy(DRBG_CTX *ctx, unsigned char **pout,
-                                int entropy, size_t min_len, size_t max_len)
-        {
-	/* Round up request to multiple of block size */
-	min_len = ((min_len + 19) / 20) * 20;
-	*pout = OPENSSL_malloc(min_len);
-	if (!*pout)
-		return 0;
-	if (RAND_SSLeay()->bytes(*pout, min_len) <= 0)
-		{
-		OPENSSL_free(*pout);
-		*pout = NULL;
-		return 0;
-		}
-        return min_len;
-        }
-
-static void drbg_free_entropy(DRBG_CTX *ctx, unsigned char *out, size_t olen)
-	{
-	if (out)
-		{
-		OPENSSL_cleanse(out, olen);
-		OPENSSL_free(out);
-		}
-	}
-
-/* Set "additional input" when generating random data. This uses the
- * current PID, a time value and a counter.
- */
-
-static size_t drbg_get_adin(DRBG_CTX *ctx, unsigned char **pout)
-    	{
-	/* Use of static variables is OK as this happens under a lock */
-	static unsigned char buf[16];
-	static unsigned long counter;
-	FIPS_get_timevec(buf, &counter);
-	*pout = buf;
-	return sizeof(buf);
-	}
-
-/* RAND_add() and RAND_seed() pass through to OpenSSL PRNG so it is 
- * correctly seeded by RAND_poll().
- */
-
-static int drbg_rand_add(DRBG_CTX *ctx, const void *in, int inlen,
-				double entropy)
-	{
-	RAND_SSLeay()->add(in, inlen, entropy);
-	return 1;
-	}
-
-static int drbg_rand_seed(DRBG_CTX *ctx, const void *in, int inlen)
-	{
-	RAND_SSLeay()->seed(in, inlen);
-	return 1;
-	}
-
-#ifndef OPENSSL_DRBG_DEFAULT_TYPE
-#define OPENSSL_DRBG_DEFAULT_TYPE	NID_aes_256_ctr
-#endif
-#ifndef OPENSSL_DRBG_DEFAULT_FLAGS
-#define OPENSSL_DRBG_DEFAULT_FLAGS	DRBG_FLAG_CTR_USE_DF
-#endif 
-
-static int fips_drbg_type = OPENSSL_DRBG_DEFAULT_TYPE;
-static int fips_drbg_flags = OPENSSL_DRBG_DEFAULT_FLAGS;
-
-void RAND_set_fips_drbg_type(int type, int flags)
-	{
-	fips_drbg_type = type;
-	fips_drbg_flags = flags;
-	}
-
-int RAND_init_fips(void)
-	{
-	DRBG_CTX *dctx;
-	size_t plen;
-	unsigned char pers[32], *p;
-	dctx = FIPS_get_default_drbg();
-        if (FIPS_drbg_init(dctx, fips_drbg_type, fips_drbg_flags) <= 0)
-		{
-		RANDerr(RAND_F_RAND_INIT_FIPS, RAND_R_ERROR_INITIALISING_DRBG);
-		return 0;
-		}
-		
-        FIPS_drbg_set_callbacks(dctx,
-				drbg_get_entropy, drbg_free_entropy, 20,
-				drbg_get_entropy, drbg_free_entropy);
-	FIPS_drbg_set_rand_callbacks(dctx, drbg_get_adin, 0,
-					drbg_rand_seed, drbg_rand_add);
-	/* Personalisation string: a string followed by date time vector */
-	strcpy((char *)pers, "OpenSSL DRBG2.0");
-	plen = drbg_get_adin(dctx, &p);
-	memcpy(pers + 16, p, plen);
-
-        if (FIPS_drbg_instantiate(dctx, pers, sizeof(pers)) <= 0)
-		{
-		RANDerr(RAND_F_RAND_INIT_FIPS, RAND_R_ERROR_INSTANTIATING_DRBG);
-		return 0;
-		}
-        FIPS_rand_set_method(FIPS_drbg_method());
-	return 1;
-	}
-
-#endif