app_rand.c revision 656d9c7f52f88b3a3daccafa7655dec086c4756e
1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* apps/app_rand.c */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * All rights reserved. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This package is an SSL implementation written 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * by Eric Young (eay@cryptsoft.com). 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The implementation was written so as to conform with Netscapes SSL. 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This library is free for commercial and non-commercial use as long as 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the following conditions are aheared to. The following conditions 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * apply to all code found in this distribution, be it the RC4, RSA, 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * included with this distribution is covered by the same copyright terms 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright remains Eric Young's, and as such any Copyright notices in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the code are not to be removed. 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * If this package is used in a product, Eric Young should be given attribution 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * as the author of the parts of the library used. 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This can be in the form of a textual message at program startup or 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * in documentation (online or textual) provided with the package. 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the copyright 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in the 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * documentation and/or other materials provided with the distribution. 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this software 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * must display the following acknowledgement: 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes cryptographic software written by 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Eric Young (eay@cryptsoft.com)" 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The word 'cryptographic' can be left out if the rouines from the library 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * being used are not cryptographic related :-). 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. If you include any Windows specific code (or a derivative thereof) from 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the apps directory (application code) you must include an acknowledgement: 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SUCH DAMAGE. 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The licence and distribution terms for any publically available version or 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * derivative of this code cannot be changed. i.e. this code cannot simply be 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * copied and put under another distribution licence 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * [including the GNU Public Licence.] 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ==================================================================== 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the above copyright 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the documentation and/or other materials provided with the 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * distribution. 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * software must display the following acknowledgment: 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * endorse or promote products derived from this software without 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * prior written permission. For written permission, please contact 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * openssl-core@openssl.org. 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5. Products derived from this software may not be called "OpenSSL" 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * nor may "OpenSSL" appear in their names without prior written 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * permission of the OpenSSL Project. 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 6. Redistributions of any form whatsoever must retain the following 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * acknowledgment: 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OF THE POSSIBILITY OF SUCH DAMAGE. 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ==================================================================== 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This product includes cryptographic software written by Eric Young 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (eay@cryptsoft.com). This product includes software written by Tim 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Hudson (tjh@cryptsoft.com). 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define NON_MAIN 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "apps.h" 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#undef NON_MAIN 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/bio.h> 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/rand.h> 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int seeded = 0; 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int egdsocket = 0; 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint app_RAND_load_file(const char *file, BIO *bio_e, int dont_warn) 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int consider_randfile = (file == NULL); 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char buffer[200]; 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef OPENSSL_SYS_WINDOWS 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_printf(bio_e,"Loading 'screen' into random state -"); 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_flush(bio_e); 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RAND_screen(); 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_printf(bio_e," done\n"); 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (file == NULL) 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project file = RAND_file_name(buffer, sizeof buffer); 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else if (RAND_egd(file) > 0) 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* we try if the given filename is an EGD socket. 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if it is, we don't write anything back to the file. */ 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project egdsocket = 1; 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (file == NULL || !RAND_load_file(file, -1)) 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (RAND_status() == 0) 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!dont_warn) 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_printf(bio_e,"unable to load 'random state'\n"); 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_printf(bio_e,"This means that the random number generator has not been seeded\n"); 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_printf(bio_e,"with much random data.\n"); 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (consider_randfile) /* explanation does not apply when a file is explicitly named */ 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_printf(bio_e,"Consider setting the RANDFILE environment variable to point at a file that\n"); 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_printf(bio_e,"'random' data can be kept in (the file will be overwritten).\n"); 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project seeded = 1; 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectlong app_RAND_load_files(char *name) 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char *p,*n; 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int last; 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project long tot=0; 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int egd; 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (;;) 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project last=0; 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (p=name; ((*p != '\0') && (*p != LIST_SEPARATOR_CHAR)); p++); 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (*p == '\0') last=1; 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *p='\0'; 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=name; 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project name=p+1; 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (*n == '\0') break; 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project egd=RAND_egd(n); 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (egd > 0) 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tot+=egd; 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tot+=RAND_load_file(n,-1); 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (last) break; 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (tot > 512) 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project app_RAND_allow_write_file(); 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(tot); 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint app_RAND_write_file(const char *file, BIO *bio_e) 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char buffer[200]; 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (egdsocket || !seeded) 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If we did not manage to read the seed file, 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * we should not write a low-entropy seed file back -- 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * it would suppress a crucial warning the next time 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * we want to use it. */ 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (file == NULL) 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project file = RAND_file_name(buffer, sizeof buffer); 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (file == NULL || !RAND_write_file(file)) 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_printf(bio_e,"unable to write 'random state'\n"); 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid app_RAND_allow_write_file(void) 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project seeded = 1; 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 219