[thirdparty/openssl.git] / crypto / rand / rand_unix.c

/* crypto/rand/rand_unix.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * 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 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 acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS 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 AUTHOR OR 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.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
/* ====================================================================
 * 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 <stdio.h>

#define USE_SOCKETS
#include "e_os.h"
#include "cryptlib.h"
#include <openssl/rand.h>
#include "rand_lcl.h"

#if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_OS2) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE)) 

#include <sys/types.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <time.h>

#ifdef __OpenBSD__
int RAND_poll(void)
{
	u_int32_t rnd = 0, i;
	unsigned char buf[ENTROPY_NEEDED];

	for (i = 0; i < sizeof(buf); i++) {
		if (i % 4 == 0)
			rnd = arc4random();
		buf[i] = rnd;
		rnd >>= 8;
	}
	RAND_add(buf, sizeof(buf), ENTROPY_NEEDED);
	memset(buf, 0, sizeof(buf));

	return 1;
}
#else
int RAND_poll(void)
{
	unsigned long l;
	pid_t curr_pid = getpid();
#if defined(DEVRANDOM) || defined(DEVRANDOM_EGD)
	unsigned char tmpbuf[ENTROPY_NEEDED];
	int n = 0;
#endif
#ifdef DEVRANDOM
	static const char *randomfiles[] = { DEVRANDOM };
	struct stat randomstats[sizeof(randomfiles)/sizeof(randomfiles[0])];
	int fd,i;
#endif
#ifdef DEVRANDOM_EGD
	static const char *egdsockets[] = { DEVRANDOM_EGD, NULL };
	const char **egdsocket = NULL;
#endif

#ifdef DEVRANDOM
	memset(randomstats,0,sizeof(randomstats));
	/* Use a random entropy pool device. Linux, FreeBSD and OpenBSD
	 * have this. Use /dev/urandom if you can as /dev/random may block
	 * if it runs out of random entries.  */

	for (i=0; i<sizeof(randomfiles)/sizeof(randomfiles[0]) && n < ENTROPY_NEEDED; i++)
		{
		if ((fd = open(randomfiles[i], O_RDONLY
#ifdef O_NONBLOCK
			|O_NONBLOCK
#endif
#ifdef O_BINARY
			|O_BINARY
#endif
#ifdef O_NOCTTY /* If it happens to be a TTY (god forbid), do not make it
		   our controlling tty */
			|O_NOCTTY
#endif
			)) >= 0)
			{
			struct timeval t = { 0, 10*1000 }; /* Spend 10ms on
							      each file. */
			int r,j;
			fd_set fset;
			struct stat *st=&randomstats[i];

			/* Avoid using same input... Used to be O_NOFOLLOW
			 * above, but it's not universally appropriate... */
			if (fstat(fd,st) != 0)	{ close(fd); continue; }
			for (j=0;j<i;j++)
				{
				if (randomstats[j].st_ino==st->st_ino &&
				    randomstats[j].st_dev==st->st_dev)
					break;
				}
			if (j<i)		{ close(fd); continue; }

			do
				{
				FD_ZERO(&fset);
				FD_SET(fd, &fset);
				r = -1;

				if (select(fd+1,&fset,NULL,NULL,&t) < 0)
					t.tv_usec=0;
				else if (FD_ISSET(fd, &fset))
					{
					r=read(fd,(unsigned char *)tmpbuf+n,
					       ENTROPY_NEEDED-n);
					if (r > 0)
						n += r;
					}

				/* Some Unixen will update t, some
				   won't.  For those who won't, give
				   up here, otherwise, we will do
				   this once again for the remaining
				   time. */
				if (t.tv_usec == 10*1000)
					t.tv_usec=0;
				}
			while ((r > 0 || (errno == EINTR || errno == EAGAIN))
				&& t.tv_usec != 0 && n < ENTROPY_NEEDED);

			close(fd);
			}
		}
#endif

#ifdef DEVRANDOM_EGD
	/* Use an EGD socket to read entropy from an EGD or PRNGD entropy
	 * collecting daemon. */

	for (egdsocket = egdsockets; *egdsocket && n < ENTROPY_NEEDED; egdsocket++)
		{
		int r;

		r = RAND_query_egd_bytes(*egdsocket, (unsigned char *)tmpbuf+n,
					 ENTROPY_NEEDED-n);
		if (r > 0)
			n += r;
		}
#endif

#if defined(DEVRANDOM) || defined(DEVRANDOM_EGD)
	if (n > 0)
		{
		RAND_add(tmpbuf,sizeof tmpbuf,(double)n);
		OPENSSL_cleanse(tmpbuf,n);
		}
#endif

	/* put in some default random data, we need more than just this */
	l=curr_pid;
	RAND_add(&l,sizeof(l),0.0);
	l=getuid();
	RAND_add(&l,sizeof(l),0.0);

	l=time(NULL);
	RAND_add(&l,sizeof(l),0.0);

#if defined(DEVRANDOM) || defined(DEVRANDOM_EGD)
	return 1;
#else
	return 0;
#endif
}

#endif
#endif

#if defined(OPENSSL_SYS_VXWORKS)
int RAND_poll(void)
{
    return 0;
}
#endif
Commit	Line	Data
0c61e299 RL	1	/* crypto/rand/rand_unix.c */
	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
	3	* All rights reserved.
	4	*
	5	* This package is an SSL implementation written
	6	* by Eric Young (eay@cryptsoft.com).
	7	* The implementation was written so as to conform with Netscapes SSL.
	8	*
	9	* This library is free for commercial and non-commercial use as long as
	10	* the following conditions are aheared to. The following conditions
	11	* apply to all code found in this distribution, be it the RC4, RSA,
	12	* lhash, DES, etc., code; not just the SSL code. The SSL documentation
	13	* included with this distribution is covered by the same copyright terms
	14	* except that the holder is Tim Hudson (tjh@cryptsoft.com).
	15	*
	16	* Copyright remains Eric Young's, and as such any Copyright notices in
	17	* the code are not to be removed.
	18	* If this package is used in a product, Eric Young should be given attribution
	19	* as the author of the parts of the library used.
	20	* This can be in the form of a textual message at program startup or
	21	* in documentation (online or textual) provided with the package.
	22	*
	23	* Redistribution and use in source and binary forms, with or without
	24	* modification, are permitted provided that the following conditions
	25	* are met:
	26	* 1. Redistributions of source code must retain the copyright
	27	* notice, this list of conditions and the following disclaimer.
	28	* 2. Redistributions in binary form must reproduce the above copyright
	29	* notice, this list of conditions and the following disclaimer in the
	30	* documentation and/or other materials provided with the distribution.
	31	* 3. All advertising materials mentioning features or use of this software
	32	* must display the following acknowledgement:
	33	* "This product includes cryptographic software written by
	34	* Eric Young (eay@cryptsoft.com)"
	35	* The word 'cryptographic' can be left out if the rouines from the library
	36	* being used are not cryptographic related :-).
	37	* 4. If you include any Windows specific code (or a derivative thereof) from
	38	* the apps directory (application code) you must include an acknowledgement:
	39	* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
	40	*
	41	* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
	42	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	43	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	44	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	45	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	46	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	47	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	48	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	49	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	50	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	51	* SUCH DAMAGE.
	52	*
	53	* The licence and distribution terms for any publically available version or
	54	* derivative of this code cannot be changed. i.e. this code cannot simply be
	55	* copied and put under another distribution licence
	56	* [including the GNU Public Licence.]
	57	*/
	58	/* ====================================================================
	59	* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
	60	*
	61	* Redistribution and use in source and binary forms, with or without
	62	* modification, are permitted provided that the following conditions
	63	* are met:
	64	*
65	* 1. Redistributions of source code must retain the above copyright
66	* notice, this list of conditions and the following disclaimer.
67	*
68	* 2. Redistributions in binary form must reproduce the above copyright
69	* notice, this list of conditions and the following disclaimer in
70	* the documentation and/or other materials provided with the
71	* distribution.
72	*
73	* 3. All advertising materials mentioning features or use of this
74	* software must display the following acknowledgment:
75	* "This product includes software developed by the OpenSSL Project
76	* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77	*
78	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79	* endorse or promote products derived from this software without
80	* prior written permission. For written permission, please contact
81	* openssl-core@openssl.org.
82	*
83	* 5. Products derived from this software may not be called "OpenSSL"
84	* nor may "OpenSSL" appear in their names without prior written
85	* permission of the OpenSSL Project.
86	*
87	* 6. Redistributions of any form whatsoever must retain the following
88	* acknowledgment:
89	* "This product includes software developed by the OpenSSL Project
90	* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91	*
92	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103	* OF THE POSSIBILITY OF SUCH DAMAGE.
104	* ====================================================================
105	*
106	* This product includes cryptographic software written by Eric Young
107	* (eay@cryptsoft.com). This product includes software written by Tim
108	* Hudson (tjh@cryptsoft.com).
109	*
110	*/
4d8743f4	111	#include <stdio.h>
0c61e299	112
a947f2d2	113	#define USE_SOCKETS
da0616cd	114	#include "e_os.h"
0c61e299 RL	115	#include "cryptlib.h"
	116	#include <openssl/rand.h>
	117	#include "rand_lcl.h"
	118
4d8743f4	119	#if !(defined(OPENSSL_SYS_WINDOWS) \|\| defined(OPENSSL_SYS_WIN32) \|\| defined(OPENSSL_SYS_VMS) \|\| defined(OPENSSL_SYS_OS2) \|\| defined(OPENSSL_SYS_VXWORKS) \|\| defined(OPENSSL_SYS_NETWARE))
0c61e299 RL	120
	121	#include <sys/types.h>
	122	#include <sys/time.h>
	123	#include <sys/times.h>
108159ff	124	#include <sys/stat.h>
0c61e299 RL	125	#include <fcntl.h>
0c61e299 RL	126	#include <unistd.h>
4901b416	127	#include <time.h>
0c61e299	128
de02ec27 RL	129	#ifdef __OpenBSD__
	130	int RAND_poll(void)
	131	{
	132	u_int32_t rnd = 0, i;
	133	unsigned char buf[ENTROPY_NEEDED];
	134
	135	for (i = 0; i < sizeof(buf); i++) {
	136	if (i % 4 == 0)
	137	rnd = arc4random();
	138	buf[i] = rnd;
	139	rnd >>= 8;
	140	}
	141	RAND_add(buf, sizeof(buf), ENTROPY_NEEDED);
	142	memset(buf, 0, sizeof(buf));
	143
	144	return 1;
	145	}
	146	#else
0c61e299 RL	147	int RAND_poll(void)
	148	{
	149	unsigned long l;
	150	pid_t curr_pid = getpid();
599c0353	151	#if defined(DEVRANDOM) \|\| defined(DEVRANDOM_EGD)
0c61e299 RL	152	unsigned char tmpbuf[ENTROPY_NEEDED];
0c61e299 RL	153	int n = 0;
599c0353 LJ	154	#endif
599c0353 LJ	155	#ifdef DEVRANDOM
4bd46774	156	static const char *randomfiles[] = { DEVRANDOM };
108159ff AP	157	struct stat randomstats[sizeof(randomfiles)/sizeof(randomfiles[0])];
108159ff AP	158	int fd,i;
0c61e299	159	#endif
599c0353 LJ	160	#ifdef DEVRANDOM_EGD
	161	static const char *egdsockets[] = { DEVRANDOM_EGD, NULL };
	162	const char **egdsocket = NULL;
	163	#endif
0c61e299 RL	164
0c61e299 RL	165	#ifdef DEVRANDOM
108159ff	166	memset(randomstats,0,sizeof(randomstats));
0c61e299 RL	167	/* Use a random entropy pool device. Linux, FreeBSD and OpenBSD
	168	* have this. Use /dev/urandom if you can as /dev/random may block
	169	* if it runs out of random entries. */
	170
108159ff	171	for (i=0; i<sizeof(randomfiles)/sizeof(randomfiles[0]) && n < ENTROPY_NEEDED; i++)
0c61e299	172	{
108159ff	173	if ((fd = open(randomfiles[i], O_RDONLY
02a00bb0 AP	174	#ifdef O_NONBLOCK
	175	\|O_NONBLOCK
	176	#endif
	177	#ifdef O_BINARY
	178	\|O_BINARY
	179	#endif
0c61e299 RL	180	#ifdef O_NOCTTY /* If it happens to be a TTY (god forbid), do not make it
	181	our controlling tty */
	182	\|O_NOCTTY
0c61e299 RL	183	#endif
	184	)) >= 0)
	185	{
	186	struct timeval t = { 0, 101000 }; / Spend 10ms on
	187	each file. */
108159ff	188	int r,j;
0c61e299	189	fd_set fset;
108159ff AP	190	struct stat *st=&randomstats[i];
	191
	192	/* Avoid using same input... Used to be O_NOFOLLOW
	193	* above, but it's not universally appropriate... */
	194	if (fstat(fd,st) != 0) { close(fd); continue; }
	195	for (j=0;j<i;j++)
	196	{
	197	if (randomstats[j].st_ino==st->st_ino &&
5d727078	198	randomstats[j].st_dev==st->st_dev)
108159ff AP	199	break;
	200	}
	201	if (j<i) { close(fd); continue; }
0c61e299 RL	202
	203	do
	204	{
	205	FD_ZERO(&fset);
	206	FD_SET(fd, &fset);
	207	r = -1;
	208
	209	if (select(fd+1,&fset,NULL,NULL,&t) < 0)
	210	t.tv_usec=0;
	211	else if (FD_ISSET(fd, &fset))
	212	{
	213	r=read(fd,(unsigned char *)tmpbuf+n,
	214	ENTROPY_NEEDED-n);
	215	if (r > 0)
	216	n += r;
	217	}
	218
	219	/* Some Unixen will update t, some
	220	won't. For those who won't, give
	221	up here, otherwise, we will do
	222	this once again for the remaining
	223	time. */
	224	if (t.tv_usec == 10*1000)
	225	t.tv_usec=0;
	226	}
	227	while ((r > 0 \|\| (errno == EINTR \|\| errno == EAGAIN))
	228	&& t.tv_usec != 0 && n < ENTROPY_NEEDED);
	229
	230	close(fd);
0c61e299 RL	231	}
0c61e299 RL	232	}
599c0353 LJ	233	#endif
	234
	235	#ifdef DEVRANDOM_EGD
	236	/* Use an EGD socket to read entropy from an EGD or PRNGD entropy
	237	* collecting daemon. */
	238
	239	for (egdsocket = egdsockets; *egdsocket && n < ENTROPY_NEEDED; egdsocket++)
	240	{
	241	int r;
	242
	243	r = RAND_query_egd_bytes(egdsocket, (unsigned char )tmpbuf+n,
	244	ENTROPY_NEEDED-n);
	245	if (r > 0)
	246	n += r;
	247	}
	248	#endif
	249
	250	#if defined(DEVRANDOM) \|\| defined(DEVRANDOM_EGD)
28e5428d LJ	251	if (n > 0)
28e5428d LJ	252	{
ec37635c	253	RAND_add(tmpbuf,sizeof tmpbuf,(double)n);
4579924b	254	OPENSSL_cleanse(tmpbuf,n);
28e5428d	255	}
0c61e299 RL	256	#endif
	257
	258	/* put in some default random data, we need more than just this */
	259	l=curr_pid;
fd836aee	260	RAND_add(&l,sizeof(l),0.0);
0c61e299	261	l=getuid();
fd836aee	262	RAND_add(&l,sizeof(l),0.0);
0c61e299 RL	263
0c61e299 RL	264	l=time(NULL);
fd836aee	265	RAND_add(&l,sizeof(l),0.0);
0c61e299	266
599c0353	267	#if defined(DEVRANDOM) \|\| defined(DEVRANDOM_EGD)
0c61e299	268	return 1;
6e6d04e2	269	#else
0c61e299	270	return 0;
6e6d04e2	271	#endif
0c61e299 RL	272	}
0c61e299 RL	273
de02ec27	274	#endif
0c61e299	275	#endif
57d8ff79 RL	276
	277	#if defined(OPENSSL_SYS_VXWORKS)
	278	int RAND_poll(void)
	279	{
	280	return 0;
	281	}
	282	#endif