1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/ssl/libcrypto/src/crypto/rand/rand_lib.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,190 @@
1.4 +/* crypto/rand/rand_lib.c */
1.5 +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
1.6 + * All rights reserved.
1.7 + *
1.8 + * This package is an SSL implementation written
1.9 + * by Eric Young (eay@cryptsoft.com).
1.10 + * The implementation was written so as to conform with Netscapes SSL.
1.11 + *
1.12 + * This library is free for commercial and non-commercial use as long as
1.13 + * the following conditions are aheared to. The following conditions
1.14 + * apply to all code found in this distribution, be it the RC4, RSA,
1.15 + * lhash, DES, etc., code; not just the SSL code. The SSL documentation
1.16 + * included with this distribution is covered by the same copyright terms
1.17 + * except that the holder is Tim Hudson (tjh@cryptsoft.com).
1.18 + *
1.19 + * Copyright remains Eric Young's, and as such any Copyright notices in
1.20 + * the code are not to be removed.
1.21 + * If this package is used in a product, Eric Young should be given attribution
1.22 + * as the author of the parts of the library used.
1.23 + * This can be in the form of a textual message at program startup or
1.24 + * in documentation (online or textual) provided with the package.
1.25 + *
1.26 + * Redistribution and use in source and binary forms, with or without
1.27 + * modification, are permitted provided that the following conditions
1.28 + * are met:
1.29 + * 1. Redistributions of source code must retain the copyright
1.30 + * notice, this list of conditions and the following disclaimer.
1.31 + * 2. Redistributions in binary form must reproduce the above copyright
1.32 + * notice, this list of conditions and the following disclaimer in the
1.33 + * documentation and/or other materials provided with the distribution.
1.34 + * 3. All advertising materials mentioning features or use of this software
1.35 + * must display the following acknowledgement:
1.36 + * "This product includes cryptographic software written by
1.37 + * Eric Young (eay@cryptsoft.com)"
1.38 + * The word 'cryptographic' can be left out if the rouines from the library
1.39 + * being used are not cryptographic related :-).
1.40 + * 4. If you include any Windows specific code (or a derivative thereof) from
1.41 + * the apps directory (application code) you must include an acknowledgement:
1.42 + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
1.43 + *
1.44 + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
1.45 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.46 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.47 + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1.48 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.49 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.50 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.51 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.52 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.53 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.54 + * SUCH DAMAGE.
1.55 + *
1.56 + * The licence and distribution terms for any publically available version or
1.57 + * derivative of this code cannot be changed. i.e. this code cannot simply be
1.58 + * copied and put under another distribution licence
1.59 + * [including the GNU Public Licence.]
1.60 + */
1.61 +/*
1.62 + © Portions copyright (c) 2006 Nokia Corporation. All rights reserved.
1.63 + */
1.64 +
1.65 +
1.66 +#include <stdio.h>
1.67 +#include <time.h>
1.68 +#include "cryptlib.h"
1.69 +#include <openssl/rand.h>
1.70 +#ifndef OPENSSL_NO_ENGINE
1.71 +#include <openssl/engine.h>
1.72 +#endif
1.73 +#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
1.74 +#include "libcrypto_wsd_macros.h"
1.75 +#include "libcrypto_wsd.h"
1.76 +#endif
1.77 +
1.78 +
1.79 +#ifndef OPENSSL_NO_ENGINE
1.80 +/* non-NULL if default_RAND_meth is ENGINE-provided */
1.81 +static ENGINE *funct_ref =NULL;
1.82 +#endif
1.83 +#ifndef EMULATOR
1.84 +static const RAND_METHOD *default_RAND_meth = NULL;
1.85 +#else
1.86 +GET_STATIC_VAR_FROM_TLS(default_RAND_meth,rand_lib,const RAND_METHOD *)
1.87 +#define default_RAND_meth (*GET_WSD_VAR_NAME(default_RAND_meth,rand_lib, s)())
1.88 +#endif
1.89 +
1.90 +EXPORT_C int RAND_set_rand_method(const RAND_METHOD *meth)
1.91 + {
1.92 +#ifndef OPENSSL_NO_ENGINE
1.93 + if(funct_ref)
1.94 + {
1.95 + ENGINE_finish(funct_ref);
1.96 + funct_ref = NULL;
1.97 + }
1.98 +#endif
1.99 + default_RAND_meth = meth;
1.100 + return 1;
1.101 + }
1.102 +
1.103 +EXPORT_C const RAND_METHOD *RAND_get_rand_method(void)
1.104 + {
1.105 + if (!default_RAND_meth)
1.106 + {
1.107 +#ifndef OPENSSL_NO_ENGINE
1.108 + ENGINE *e = ENGINE_get_default_RAND();
1.109 + if(e)
1.110 + {
1.111 + default_RAND_meth = ENGINE_get_RAND(e);
1.112 + if(!default_RAND_meth)
1.113 + {
1.114 + ENGINE_finish(e);
1.115 + e = NULL;
1.116 + }
1.117 + }
1.118 + if(e)
1.119 + funct_ref = e;
1.120 + else
1.121 +#endif
1.122 + default_RAND_meth = RAND_SSLeay();
1.123 + }
1.124 + return default_RAND_meth;
1.125 + }
1.126 +
1.127 +#ifndef OPENSSL_NO_ENGINE
1.128 +EXPORT_C int RAND_set_rand_engine(ENGINE *engine)
1.129 + {
1.130 + const RAND_METHOD *tmp_meth = NULL;
1.131 + if(engine)
1.132 + {
1.133 + if(!ENGINE_init(engine))
1.134 + return 0;
1.135 + tmp_meth = ENGINE_get_RAND(engine);
1.136 + if(!tmp_meth)
1.137 + {
1.138 + ENGINE_finish(engine);
1.139 + return 0;
1.140 + }
1.141 + }
1.142 + /* This function releases any prior ENGINE so call it first */
1.143 + RAND_set_rand_method(tmp_meth);
1.144 + funct_ref = engine;
1.145 + return 1;
1.146 + }
1.147 +#endif
1.148 +
1.149 +EXPORT_C void RAND_cleanup(void)
1.150 + {
1.151 + const RAND_METHOD *meth = RAND_get_rand_method();
1.152 + if (meth && meth->cleanup)
1.153 + meth->cleanup();
1.154 + RAND_set_rand_method(NULL);
1.155 + }
1.156 +
1.157 +EXPORT_C void RAND_seed(const void *buf, int num)
1.158 + {
1.159 + const RAND_METHOD *meth = RAND_get_rand_method();
1.160 + if (meth && meth->seed)
1.161 + meth->seed(buf,num);
1.162 + }
1.163 +
1.164 +EXPORT_C void RAND_add(const void *buf, int num, double entropy)
1.165 + {
1.166 + const RAND_METHOD *meth = RAND_get_rand_method();
1.167 + if (meth && meth->add)
1.168 + meth->add(buf,num,entropy);
1.169 + }
1.170 +
1.171 +EXPORT_C int RAND_bytes(unsigned char *buf, int num)
1.172 + {
1.173 + const RAND_METHOD *meth = RAND_get_rand_method();
1.174 + if (meth && meth->bytes)
1.175 + return meth->bytes(buf,num);
1.176 + return(-1);
1.177 + }
1.178 +
1.179 +EXPORT_C int RAND_pseudo_bytes(unsigned char *buf, int num)
1.180 + {
1.181 + const RAND_METHOD *meth = RAND_get_rand_method();
1.182 + if (meth && meth->pseudorand)
1.183 + return meth->pseudorand(buf,num);
1.184 + return(-1);
1.185 + }
1.186 +
1.187 +EXPORT_C int RAND_status(void)
1.188 + {
1.189 + const RAND_METHOD *meth = RAND_get_rand_method();
1.190 + if (meth && meth->status)
1.191 + return meth->status();
1.192 + return 0;
1.193 + }