148 lines
4.7 KiB
C
148 lines
4.7 KiB
C
/* crypto/rand/rand_vms.c -*- mode:C; c-file-style: "eay" -*- */
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/* Written by Richard Levitte <richard@levitte.org> for the OpenSSL
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* project 2000.
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*/
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/* ====================================================================
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* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <openssl/rand.h>
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#include "rand_lcl.h"
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#if defined(OPENSSL_SYS_VMS)
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#include <descrip.h>
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#include <jpidef.h>
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#include <ssdef.h>
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#include <starlet.h>
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#ifdef __DECC
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# pragma message disable DOLLARID
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#endif
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/* Use 32-bit pointers almost everywhere. Define the type to which to
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* cast a pointer passed to an external function.
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*/
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#if __INITIAL_POINTER_SIZE == 64
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# define PTR_T __void_ptr64
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# pragma pointer_size save
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# pragma pointer_size 32
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#else /* __INITIAL_POINTER_SIZE == 64 */
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# define PTR_T void *
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#endif /* __INITIAL_POINTER_SIZE == 64 [else] */
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static struct items_data_st
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{
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short length, code; /* length is amount of bytes */
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} items_data[] =
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{ { 4, JPI$_BUFIO },
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{ 4, JPI$_CPUTIM },
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{ 4, JPI$_DIRIO },
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{ 8, JPI$_LOGINTIM },
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{ 4, JPI$_PAGEFLTS },
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{ 4, JPI$_PID },
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{ 4, JPI$_WSSIZE },
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{ 0, 0 }
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};
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int RAND_poll(void)
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{
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long pid, iosb[2];
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int status = 0;
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struct
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{
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short length, code;
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long *buffer;
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int *retlen;
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} item[32], *pitem;
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unsigned char data_buffer[256];
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short total_length = 0;
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struct items_data_st *pitems_data;
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pitems_data = items_data;
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pitem = item;
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/* Setup */
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while (pitems_data->length
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&& (total_length + pitems_data->length <= 256))
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{
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pitem->length = pitems_data->length;
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pitem->code = pitems_data->code;
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pitem->buffer = (long *)&data_buffer[total_length];
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pitem->retlen = 0;
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total_length += pitems_data->length;
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pitems_data++;
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pitem++;
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}
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pitem->length = pitem->code = 0;
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/*
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* Scan through all the processes in the system and add entropy with
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* results from the processes that were possible to look at.
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* However, view the information as only half trustable.
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*/
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pid = -1; /* search context */
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while ((status = sys$getjpiw(0, &pid, 0, item, iosb, 0, 0))
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!= SS$_NOMOREPROC)
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{
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if (status == SS$_NORMAL)
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{
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RAND_add( (PTR_T)data_buffer, total_length,
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total_length/2);
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}
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}
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sys$gettim(iosb);
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RAND_add( (PTR_T)iosb, sizeof(iosb), sizeof(iosb)/2);
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return 1;
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}
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#endif
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