diff options
Diffstat (limited to 'deps/openssl/openssl/crypto/bn/bn_print.c')
-rw-r--r-- | deps/openssl/openssl/crypto/bn/bn_print.c | 105 |
1 files changed, 23 insertions, 82 deletions
diff --git a/deps/openssl/openssl/crypto/bn/bn_print.c b/deps/openssl/openssl/crypto/bn/bn_print.c index c0b029dad6..5ffe2fc9ba 100644 --- a/deps/openssl/openssl/crypto/bn/bn_print.c +++ b/deps/openssl/openssl/crypto/bn/bn_print.c @@ -1,65 +1,16 @@ -/* crypto/bn/bn_print.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. 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.] + * 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 <stdio.h> #include <ctype.h> #include <limits.h> -#include "cryptlib.h" +#include "internal/cryptlib.h" #include <openssl/buffer.h> #include "bn_lcl.h" @@ -111,8 +62,8 @@ char *BN_bn2dec(const BIGNUM *a) /*- * get an upper bound for the length of the decimal integer * num <= (BN_num_bits(a) + 1) * log(2) - * <= 3 * BN_num_bits(a) * 0.1001 + log(2) + 1 (rounding error) - * <= BN_num_bits(a)/10 + BN_num_bits/1000 + 1 + 1 + * <= 3 * BN_num_bits(a) * 0.101 + log(2) + 1 (rounding error) + * <= 3 * BN_num_bits(a) / 10 + 3 * BN_num_bits / 1000 + 1 + 1 */ i = BN_num_bits(a) * 3; num = (i / 10 + i / 1000 + 1) + 1; @@ -162,16 +113,12 @@ char *BN_bn2dec(const BIGNUM *a) } ok = 1; err: - if (bn_data != NULL) - OPENSSL_free(bn_data); - if (t != NULL) - BN_free(t); - if (!ok && buf) { - OPENSSL_free(buf); - buf = NULL; - } - - return (buf); + OPENSSL_free(bn_data); + BN_free(t); + if (ok) + return buf; + OPENSSL_free(buf); + return NULL; } int BN_hex2bn(BIGNUM **bn, const char *a) @@ -192,7 +139,7 @@ int BN_hex2bn(BIGNUM **bn, const char *a) for (i = 0; i <= (INT_MAX/4) && isxdigit((unsigned char)a[i]); i++) continue; - if (i > INT_MAX/4) + if (i == 0 || i > INT_MAX/4) goto err; num = i + neg; @@ -220,13 +167,8 @@ int BN_hex2bn(BIGNUM **bn, const char *a) l = 0; for (;;) { c = a[j - m]; - if ((c >= '0') && (c <= '9')) - k = c - '0'; - else if ((c >= 'a') && (c <= 'f')) - k = c - 'a' + 10; - else if ((c >= 'A') && (c <= 'F')) - k = c - 'A' + 10; - else + k = OPENSSL_hexchar2int(c); + if (k < 0) k = 0; /* paranoia */ l = (l << 4) | k; @@ -269,7 +211,7 @@ int BN_dec2bn(BIGNUM **bn, const char *a) for (i = 0; i <= (INT_MAX/4) && isdigit((unsigned char)a[i]); i++) continue; - if (i > INT_MAX/4) + if (i == 0 || i > INT_MAX/4) goto err; num = i + neg; @@ -301,8 +243,9 @@ int BN_dec2bn(BIGNUM **bn, const char *a) l += *a - '0'; a++; if (++j == BN_DEC_NUM) { - BN_mul_word(ret, BN_DEC_CONV); - BN_add_word(ret, l); + if (!BN_mul_word(ret, BN_DEC_CONV) + || !BN_add_word(ret, l)) + goto err; l = 0; j = 0; } @@ -341,8 +284,7 @@ int BN_asc2bn(BIGNUM **bn, const char *a) return 1; } -#ifndef OPENSSL_NO_BIO -# ifndef OPENSSL_NO_FP_API +# ifndef OPENSSL_NO_STDIO int BN_print_fp(FILE *fp, const BIGNUM *a) { BIO *b; @@ -381,7 +323,6 @@ int BN_print(BIO *bp, const BIGNUM *a) end: return (ret); } -#endif char *BN_options(void) { |