diff options
Diffstat (limited to 'deps/openssl/openssl/crypto/asn1/f_string.c')
-rw-r--r-- | deps/openssl/openssl/crypto/asn1/f_string.c | 125 |
1 files changed, 32 insertions, 93 deletions
diff --git a/deps/openssl/openssl/crypto/asn1/f_string.c b/deps/openssl/openssl/crypto/asn1/f_string.c index 0f7b9cfb11..b9258bba8b 100644 --- a/deps/openssl/openssl/crypto/asn1/f_string.c +++ b/deps/openssl/openssl/crypto/asn1/f_string.c @@ -1,67 +1,19 @@ -/* crypto/asn1/f_string.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 "cryptlib.h" +#include <ctype.h> +#include "internal/cryptlib.h" #include <openssl/buffer.h> #include <openssl/asn1.h> -int i2a_ASN1_STRING(BIO *bp, ASN1_STRING *a, int type) +int i2a_ASN1_STRING(BIO *bp, const ASN1_STRING *a, int type) { int i, n = 0; static const char *h = "0123456789ABCDEF"; @@ -95,8 +47,7 @@ int i2a_ASN1_STRING(BIO *bp, ASN1_STRING *a, int type) int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size) { - int ret = 0; - int i, j, k, m, n, again, bufsize; + int i, j, k, m, n, again, bufsize, spec_char; unsigned char *s = NULL, *sp; unsigned char *bufp; int num = 0, slen = 0, first = 1; @@ -107,7 +58,7 @@ int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size) if (first) break; else - goto err_sl; + goto err; } first = 0; @@ -115,27 +66,27 @@ int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size) if (buf[i - 1] == '\n') buf[--i] = '\0'; if (i == 0) - goto err_sl; + goto err; if (buf[i - 1] == '\r') buf[--i] = '\0'; if (i == 0) - goto err_sl; + goto err; again = (buf[i - 1] == '\\'); for (j = i - 1; j > 0; j--) { #ifndef CHARSET_EBCDIC - if (!(((buf[j] >= '0') && (buf[j] <= '9')) || + spec_char = (!(((buf[j] >= '0') && (buf[j] <= '9')) || ((buf[j] >= 'a') && (buf[j] <= 'f')) || - ((buf[j] >= 'A') && (buf[j] <= 'F')))) + ((buf[j] >= 'A') && (buf[j] <= 'F')))); #else /* * This #ifdef is not strictly necessary, since the characters * A...F a...f 0...9 are contiguous (yes, even in EBCDIC - but * not the whole alphabet). Nevertheless, isxdigit() is faster. */ - if (!isxdigit(buf[j])) + spec_char = (!isxdigit(buf[j])); #endif - { + if (spec_char) { i = j; break; } @@ -145,7 +96,7 @@ int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size) * We have now cleared all the crap off the end of the line */ if (i < 2) - goto err_sl; + goto err; bufp = (unsigned char *)buf; @@ -153,37 +104,28 @@ int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size) i -= again; if (i % 2 != 0) { ASN1err(ASN1_F_A2I_ASN1_STRING, ASN1_R_ODD_NUMBER_OF_CHARS); - goto err; + OPENSSL_free(s); + return 0; } i /= 2; if (num + i > slen) { - if (s == NULL) - sp = (unsigned char *)OPENSSL_malloc((unsigned int)num + - i * 2); - else - sp = (unsigned char *)OPENSSL_realloc(s, - (unsigned int)num + - i * 2); + sp = OPENSSL_realloc(s, (unsigned int)num + i * 2); if (sp == NULL) { ASN1err(ASN1_F_A2I_ASN1_STRING, ERR_R_MALLOC_FAILURE); - goto err; + OPENSSL_free(s); + return 0; } s = sp; slen = num + i * 2; } for (j = 0; j < i; j++, k += 2) { for (n = 0; n < 2; n++) { - m = bufp[k + n]; - if ((m >= '0') && (m <= '9')) - m -= '0'; - else if ((m >= 'a') && (m <= 'f')) - m = m - 'a' + 10; - else if ((m >= 'A') && (m <= 'F')) - m = m - 'A' + 10; - else { + m = OPENSSL_hexchar2int(bufp[k + n]); + if (m < 0) { ASN1err(ASN1_F_A2I_ASN1_STRING, ASN1_R_NON_HEX_CHARACTERS); - goto err; + OPENSSL_free(s); + return 0; } s[num + j] <<= 4; s[num + j] |= m; @@ -197,13 +139,10 @@ int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size) } bs->length = num; bs->data = s; - ret = 1; + return 1; + err: - if (0) { - err_sl: - ASN1err(ASN1_F_A2I_ASN1_STRING, ASN1_R_SHORT_LINE); - } - if (ret != 1) - OPENSSL_free(s); - return (ret); + ASN1err(ASN1_F_A2I_ASN1_STRING, ASN1_R_SHORT_LINE); + OPENSSL_free(s); + return 0; } |