diff options
author | Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com> | 2017-09-13 12:09:40 -0700 |
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committer | Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com> | 2017-09-13 12:09:40 -0700 |
commit | b6f94dbeacfc6f0a507413096189304c58dbe66c (patch) | |
tree | bce8c7db22209078618294c51d95a0c033aec7d9 /Cryptlib/OpenSSL/crypto/asn1/a_d2i_fp.c | |
parent | 25f7fd1fb389a5f6356f353d16c5ead80dac6bbc (diff) | |
download | efi-boot-shim-upstream/13_git1505328970.9c1c35c5.tar.gz efi-boot-shim-upstream/13_git1505328970.9c1c35c5.zip |
New upstream version 13~git1505328970.9c1c35c5upstream/13_git1505328970.9c1c35c5
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/asn1/a_d2i_fp.c')
-rw-r--r-- | Cryptlib/OpenSSL/crypto/asn1/a_d2i_fp.c | 115 |
1 files changed, 82 insertions, 33 deletions
diff --git a/Cryptlib/OpenSSL/crypto/asn1/a_d2i_fp.c b/Cryptlib/OpenSSL/crypto/asn1/a_d2i_fp.c index e5c1d0ed..51b6f245 100644 --- a/Cryptlib/OpenSSL/crypto/asn1/a_d2i_fp.c +++ b/Cryptlib/OpenSSL/crypto/asn1/a_d2i_fp.c @@ -1,23 +1,71 @@ -/* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. +/* crypto/asn1/a_d2i_fp.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. * - * 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 + * 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.] */ #include <stdio.h> #include <limits.h> -#include "internal/cryptlib.h" -#include "internal/numbers.h" +#include "cryptlib.h" #include <openssl/buffer.h> -#include <openssl/asn1.h> +#include <openssl/asn1_mac.h> static int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb); #ifndef NO_OLD_ASN1 -# ifndef OPENSSL_NO_STDIO +# ifndef OPENSSL_NO_FP_API void *ASN1_d2i_fp(void *(*xnew) (void), d2i_of_void *d2i, FILE *in, void **x) { @@ -49,7 +97,8 @@ void *ASN1_d2i_bio(void *(*xnew) (void), d2i_of_void *d2i, BIO *in, void **x) p = (unsigned char *)b->data; ret = d2i(x, &p, len); err: - BUF_MEM_free(b); + if (b != NULL) + BUF_MEM_free(b); return (ret); } @@ -69,11 +118,12 @@ void *ASN1_item_d2i_bio(const ASN1_ITEM *it, BIO *in, void *x) p = (const unsigned char *)b->data; ret = ASN1_item_d2i(x, &p, len, it); err: - BUF_MEM_free(b); + if (b != NULL) + BUF_MEM_free(b); return (ret); } -#ifndef OPENSSL_NO_STDIO +#ifndef OPENSSL_NO_FP_API void *ASN1_item_d2i_fp(const ASN1_ITEM *it, FILE *in, void *x) { BIO *b; @@ -97,15 +147,12 @@ static int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb) BUF_MEM *b; unsigned char *p; int i; + ASN1_const_CTX c; size_t want = HEADER_SIZE; - uint32_t eos = 0; + int eos = 0; size_t off = 0; size_t len = 0; - const unsigned char *q; - long slen; - int inf, tag, xclass; - b = BUF_MEM_new(); if (b == NULL) { ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ERR_R_MALLOC_FAILURE); @@ -137,9 +184,10 @@ static int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb) /* else data already loaded */ p = (unsigned char *)&(b->data[off]); - q = p; - inf = ASN1_get_object(&q, &slen, &tag, &xclass, len - off); - if (inf & 0x80) { + c.p = p; + c.inf = ASN1_get_object(&(c.p), &(c.slen), &(c.tag), &(c.xclass), + len - off); + if (c.inf & 0x80) { unsigned long e; e = ERR_GET_REASON(ERR_peek_error()); @@ -148,27 +196,27 @@ static int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb) else ERR_clear_error(); /* clear error */ } - i = q - p; /* header length */ + i = c.p - p; /* header length */ off += i; /* end of data */ - if (inf & 1) { + if (c.inf & 1) { /* no data body so go round again */ - if (eos == UINT32_MAX) { + eos++; + if (eos < 0) { ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ASN1_R_HEADER_TOO_LONG); goto err; } - eos++; want = HEADER_SIZE; - } else if (eos && (slen == 0) && (tag == V_ASN1_EOC)) { + } else if (eos && (c.slen == 0) && (c.tag == V_ASN1_EOC)) { /* eos value, so go back and read another header */ eos--; - if (eos == 0) + if (eos <= 0) break; else want = HEADER_SIZE; } else { - /* suck in slen bytes of data */ - want = slen; + /* suck in c.slen bytes of data */ + want = c.slen; if (want > (len - off)) { size_t chunk_max = ASN1_CHUNK_INITIAL_SIZE; @@ -210,12 +258,12 @@ static int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb) chunk_max *= 2; } } - if (off + slen < off) { + if (off + c.slen < off) { ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ASN1_R_TOO_LONG); goto err; } - off += slen; - if (eos == 0) { + off += c.slen; + if (eos <= 0) { break; } else want = HEADER_SIZE; @@ -230,6 +278,7 @@ static int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb) *pb = b; return off; err: - BUF_MEM_free(b); + if (b != NULL) + BUF_MEM_free(b); return -1; } |