mirror of
https://github.com/guanzhi/GmSSL.git
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Merge remote-tracking branch 'origin/master'
# Conflicts: # README.md
This commit is contained in:
@@ -1,70 +1,23 @@
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/* crypto/asn1/a_object.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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/*
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include <limits.h>
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#include "cryptlib.h"
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#include "internal/cryptlib.h"
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#include <openssl/buffer.h>
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#include <openssl/asn1.h>
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#include <openssl/objects.h>
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#include <openssl/bn.h>
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#include "internal/asn1_int.h"
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#include "asn1_locl.h"
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int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
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int i2d_ASN1_OBJECT(const ASN1_OBJECT *a, unsigned char **pp)
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{
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unsigned char *p;
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int objsize;
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@@ -73,7 +26,7 @@ int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
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return (0);
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objsize = ASN1_object_size(0, a->length, V_ASN1_OBJECT);
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if (pp == NULL)
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if (pp == NULL || objsize == -1)
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return objsize;
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p = *pp;
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@@ -137,9 +90,9 @@ int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)
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}
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if (!use_bn && l >= ((ULONG_MAX - 80) / 10L)) {
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use_bn = 1;
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if (!bl)
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if (bl == NULL)
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bl = BN_new();
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if (!bl || !BN_set_word(bl, l))
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if (bl == NULL || !BN_set_word(bl, l))
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goto err;
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}
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if (use_bn) {
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@@ -171,11 +124,15 @@ int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)
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OPENSSL_free(tmp);
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tmpsize = blsize + 32;
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tmp = OPENSSL_malloc(tmpsize);
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if (!tmp)
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if (tmp == NULL)
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goto err;
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}
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while (blsize--)
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tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);
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while (blsize--) {
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BN_ULONG t = BN_div_word(bl, 0x80L);
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if (t == (BN_ULONG)-1)
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goto err;
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tmp[i++] = (unsigned char)t;
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}
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} else {
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for (;;) {
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@@ -199,23 +156,21 @@ int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)
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}
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if (tmp != ftmp)
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OPENSSL_free(tmp);
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if (bl)
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BN_free(bl);
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BN_free(bl);
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return (len);
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err:
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if (tmp != ftmp)
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OPENSSL_free(tmp);
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if (bl)
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BN_free(bl);
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BN_free(bl);
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return (0);
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}
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int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)
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int i2t_ASN1_OBJECT(char *buf, int buf_len, const ASN1_OBJECT *a)
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{
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return OBJ_obj2txt(buf, buf_len, a, 0);
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}
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int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
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int i2a_ASN1_OBJECT(BIO *bp, const ASN1_OBJECT *a)
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{
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char buf[80], *p = buf;
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int i;
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@@ -225,12 +180,15 @@ int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
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i = i2t_ASN1_OBJECT(buf, sizeof buf, a);
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if (i > (int)(sizeof(buf) - 1)) {
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p = OPENSSL_malloc(i + 1);
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if (!p)
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if (p == NULL)
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return -1;
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i2t_ASN1_OBJECT(p, i + 1, a);
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}
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if (i <= 0)
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return BIO_write(bp, "<INVALID>", 9);
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if (i <= 0) {
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i = BIO_write(bp, "<INVALID>", 9);
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i += BIO_dump(bp, (const char *)a->data, a->length);
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return i;
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}
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BIO_write(bp, p, i);
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if (p != buf)
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OPENSSL_free(p);
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@@ -268,7 +226,7 @@ ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
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ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
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long len)
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{
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ASN1_OBJECT *ret = NULL;
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ASN1_OBJECT *ret = NULL, tobj;
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const unsigned char *p;
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unsigned char *data;
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int i, length;
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@@ -285,6 +243,29 @@ ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
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}
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/* Now 0 < len <= INT_MAX, so the cast is safe. */
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length = (int)len;
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/*
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* Try to lookup OID in table: these are all valid encodings so if we get
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* a match we know the OID is valid.
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*/
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tobj.nid = NID_undef;
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tobj.data = p;
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tobj.length = length;
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tobj.flags = 0;
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i = OBJ_obj2nid(&tobj);
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if (i != NID_undef) {
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/*
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* Return shared registered OID object: this improves efficiency
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* because we don't have to return a dynamically allocated OID
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* and NID lookups can use the cached value.
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*/
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ret = OBJ_nid2obj(i);
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if (a) {
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ASN1_OBJECT_free(*a);
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*a = ret;
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}
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*pp += len;
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return ret;
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}
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for (i = 0; i < length; i++, p++) {
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if (*p == 0x80 && (!i || !(p[-1] & 0x80))) {
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ASN1err(ASN1_F_C2I_ASN1_OBJECT, ASN1_R_INVALID_OBJECT_ENCODING);
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@@ -310,9 +291,8 @@ ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
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/* once detached we can change it */
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if ((data == NULL) || (ret->length < length)) {
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ret->length = 0;
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if (data != NULL)
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OPENSSL_free(data);
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data = (unsigned char *)OPENSSL_malloc(length);
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OPENSSL_free(data);
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data = OPENSSL_malloc(length);
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if (data == NULL) {
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i = ERR_R_MALLOC_FAILURE;
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goto err;
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@@ -334,7 +314,7 @@ ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
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return (ret);
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err:
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ASN1err(ASN1_F_C2I_ASN1_OBJECT, i);
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if ((ret != NULL) && ((a == NULL) || (*a != ret)))
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if ((a == NULL) || (*a != ret))
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ASN1_OBJECT_free(ret);
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return (NULL);
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}
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@@ -343,16 +323,11 @@ ASN1_OBJECT *ASN1_OBJECT_new(void)
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{
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ASN1_OBJECT *ret;
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ret = (ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));
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ret = OPENSSL_zalloc(sizeof(*ret));
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if (ret == NULL) {
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ASN1err(ASN1_F_ASN1_OBJECT_NEW, ERR_R_MALLOC_FAILURE);
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return (NULL);
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}
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ret->length = 0;
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ret->data = NULL;
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ret->nid = 0;
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ret->sn = NULL;
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ret->ln = NULL;
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ret->flags = ASN1_OBJECT_FLAG_DYNAMIC;
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return (ret);
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}
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@@ -365,16 +340,13 @@ void ASN1_OBJECT_free(ASN1_OBJECT *a)
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#ifndef CONST_STRICT /* disable purely for compile-time strict
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* const checking. Doing this on a "real"
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* compile will cause memory leaks */
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if (a->sn != NULL)
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OPENSSL_free((void *)a->sn);
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if (a->ln != NULL)
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OPENSSL_free((void *)a->ln);
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OPENSSL_free((void*)a->sn);
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OPENSSL_free((void*)a->ln);
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#endif
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a->sn = a->ln = NULL;
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}
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if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA) {
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if (a->data != NULL)
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OPENSSL_free((void *)a->data);
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OPENSSL_free((void*)a->data);
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a->data = NULL;
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a->length = 0;
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}
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@@ -396,7 +368,3 @@ ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,
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ASN1_OBJECT_FLAG_DYNAMIC_DATA;
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return (OBJ_dup(&o));
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}
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IMPLEMENT_STACK_OF(ASN1_OBJECT)
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IMPLEMENT_ASN1_SET_OF(ASN1_OBJECT)
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