A local copy of OpenSSL from GitHub
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/*
* Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#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