openssl/crypto/rand/rand_vms.c
Richard Levitte 93a17f79b9 Remove the "eay" c-file-style indicators
Since we don't use the eay style any more, there's no point tryint to
tell emacs to use it.

Reviewed-by: Ben Laurie <ben@openssl.org>
2015-12-18 13:39:34 +01:00

159 lines
5 KiB
C

/* crypto/rand/rand_vms.c */
/*
* 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