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110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
/*
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* Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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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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/*
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* Use 32-bit pointers almost everywhere. Define the type to which to cast a
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* 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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short length, code; /* length is amount of bytes */
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} items_data[] = {
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{
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4, JPI$_BUFIO
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},
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{
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4, JPI$_CPUTIM
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},
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{
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4, JPI$_DIRIO
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},
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{
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8, JPI$_LOGINTIM
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},
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{
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4, JPI$_PAGEFLTS
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},
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{
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4, JPI$_PID
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},
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{
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4, JPI$_WSSIZE
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},
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{
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0, 0
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}
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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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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 && (total_length + pitems_data->length <= 256)) {
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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$_NOMOREPROC) {
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if (status == SS$_NORMAL) {
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RAND_add((PTR_T) data_buffer, total_length, 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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