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/* crypto/rand/rand_egd.c */
/* Written by Ulf Moeller and Lutz Jaenicke for the OpenSSL project. */
/* ====================================================================
* Copyright (c) 1998-2000 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 <openssl/e_os2.h>
#include <openssl/rand.h>
#include <openssl/buffer.h>
/*
* Query the EGD <URL: http://www.lothar.com/tech/crypto/>.
*
* This module supplies three routines:
*
* RAND_query_egd_bytes(path, buf, bytes)
* will actually query "bytes" bytes of entropy form the egd-socket located
* at path and will write them to buf (if supplied) or will directly feed
* it to RAND_seed() if buf==NULL.
* The number of bytes is not limited by the maximum chunk size of EGD,
* which is 255 bytes. If more than 255 bytes are wanted, several chunks
* of entropy bytes are requested. The connection is left open until the
* query is competed.
* RAND_query_egd_bytes() returns with
* -1 if an error occured during connection or communication.
* num the number of bytes read from the EGD socket. This number is either
* the number of bytes requested or smaller, if the EGD pool is
* drained and the daemon signals that the pool is empty.
* This routine does not touch any RAND_status(). This is necessary, since
* PRNG functions may call it during initialization.
*
* RAND_egd_bytes(path, bytes) will query "bytes" bytes and have them
* used to seed the PRNG.
* RAND_egd_bytes() is a wrapper for RAND_query_egd_bytes() with buf=NULL.
* Unlike RAND_query_egd_bytes(), RAND_status() is used to test the
* seed status so that the return value can reflect the seed state:
* -1 if an error occured during connection or communication _or_
* if the PRNG has still not received the required seeding.
* num the number of bytes read from the EGD socket. This number is either
* the number of bytes requested or smaller, if the EGD pool is
* drained and the daemon signals that the pool is empty.
*
* RAND_egd(path) will query 255 bytes and use the bytes retreived to seed
* the PRNG.
* RAND_egd() is a wrapper for RAND_egd_bytes() with numbytes=255.
*/
int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes)
{
return(-1);
}
int RAND_egd(const char *path)
{
return(-1);
}
int RAND_egd_bytes(const char *path,int bytes)
{
return(-1);
}
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