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/* crypto/rand/rand_vms.c -*- mode:C; c-file-style: "eay" -*- */
/* Written by Richard Levitte <richard@levitte.org> for the OpenSSL
* project 2000.
*/
/* ====================================================================
* 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/rand.h>
#include "rand_lcl.h"
#if defined(OPENSSL_SYS_VMS)
#include <descrip.h>
#include <jpidef.h>
#include <ssdef.h>
#include <starlet.h>
#ifdef __DECC
# pragma message disable DOLLARID
#endif
/* Use 32-bit pointers almost everywhere. Define the type to which to
* cast a pointer passed to an external function.
*/
#if __INITIAL_POINTER_SIZE == 64
# define PTR_T __void_ptr64
# pragma pointer_size save
# pragma pointer_size 32
#else /* __INITIAL_POINTER_SIZE == 64 */
# define PTR_T void *
#endif /* __INITIAL_POINTER_SIZE == 64 [else] */
static struct items_data_st
{
short length, code; /* length is amount of bytes */
} items_data[] =
{ { 4, JPI$_BUFIO },
{ 4, JPI$_CPUTIM },
{ 4, JPI$_DIRIO },
{ 8, JPI$_LOGINTIM },
{ 4, JPI$_PAGEFLTS },
{ 4, JPI$_PID },
{ 4, JPI$_WSSIZE },
{ 0, 0 }
};
int RAND_poll(void)
{
long pid, iosb[2];
int status = 0;
struct
{
short length, code;
long *buffer;
int *retlen;
} item[32], *pitem;
unsigned char data_buffer[256];
short total_length = 0;
struct items_data_st *pitems_data;
pitems_data = items_data;
pitem = item;
/* Setup */
while (pitems_data->length
&& (total_length + pitems_data->length <= 256))
{
pitem->length = pitems_data->length;
pitem->code = pitems_data->code;
pitem->buffer = (long *)&data_buffer[total_length];
pitem->retlen = 0;
total_length += pitems_data->length;
pitems_data++;
pitem++;
}
pitem->length = pitem->code = 0;
/*
* Scan through all the processes in the system and add entropy with
* results from the processes that were possible to look at.
* However, view the information as only half trustable.
*/
pid = -1; /* search context */
while ((status = sys$getjpiw(0, &pid, 0, item, iosb, 0, 0))
!= SS$_NOMOREPROC)
{
if (status == SS$_NORMAL)
{
RAND_add( (PTR_T)data_buffer, total_length,
total_length/2);
}
}
sys$gettim(iosb);
RAND_add( (PTR_T)iosb, sizeof(iosb), sizeof(iosb)/2);
return 1;
}
#endif