mirror of
https://github.com/pineappleEA/pineapple-src.git
synced 2024-12-11 07:18:23 -05:00
195 lines
5.5 KiB
C
Executable File
195 lines
5.5 KiB
C
Executable File
/* $OpenBSD: a_enum.c,v 1.20 2019/04/28 05:05:56 tb Exp $ */
|
|
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
|
|
* 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.]
|
|
*/
|
|
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
|
|
#include <openssl/asn1.h>
|
|
#include <openssl/bn.h>
|
|
#include <openssl/err.h>
|
|
|
|
/*
|
|
* Code for ENUMERATED type: identical to INTEGER apart from a different tag.
|
|
* for comments on encoding see a_int.c
|
|
*/
|
|
|
|
int
|
|
ASN1_ENUMERATED_set(ASN1_ENUMERATED *a, long v)
|
|
{
|
|
int j, k;
|
|
unsigned int i;
|
|
unsigned char buf[sizeof(long) + 1];
|
|
long d;
|
|
|
|
a->type = V_ASN1_ENUMERATED;
|
|
if (a->length < (int)(sizeof(long) + 1)) {
|
|
free(a->data);
|
|
a->data = calloc(1, sizeof(long) + 1);
|
|
}
|
|
if (a->data == NULL) {
|
|
ASN1error(ERR_R_MALLOC_FAILURE);
|
|
return (0);
|
|
}
|
|
d = v;
|
|
if (d < 0) {
|
|
d = -d;
|
|
a->type = V_ASN1_NEG_ENUMERATED;
|
|
}
|
|
|
|
for (i = 0; i < sizeof(long); i++) {
|
|
if (d == 0)
|
|
break;
|
|
buf[i] = (int)d & 0xff;
|
|
d >>= 8;
|
|
}
|
|
j = 0;
|
|
for (k = i - 1; k >= 0; k--)
|
|
a->data[j++] = buf[k];
|
|
a->length = j;
|
|
return (1);
|
|
}
|
|
|
|
long
|
|
ASN1_ENUMERATED_get(const ASN1_ENUMERATED *a)
|
|
{
|
|
int neg = 0, i;
|
|
unsigned long r = 0;
|
|
|
|
if (a == NULL)
|
|
return (0L);
|
|
i = a->type;
|
|
if (i == V_ASN1_NEG_ENUMERATED)
|
|
neg = 1;
|
|
else if (i != V_ASN1_ENUMERATED)
|
|
return -1;
|
|
|
|
if (a->length > (int)sizeof(long)) {
|
|
/* hmm... a bit ugly */
|
|
return -1;
|
|
}
|
|
if (a->data == NULL)
|
|
return 0;
|
|
|
|
for (i = 0; i < a->length; i++) {
|
|
r <<= 8;
|
|
r |= (unsigned char)a->data[i];
|
|
}
|
|
|
|
if (r > LONG_MAX)
|
|
return -1;
|
|
|
|
if (neg)
|
|
return -(long)r;
|
|
return (long)r;
|
|
}
|
|
|
|
ASN1_ENUMERATED *
|
|
BN_to_ASN1_ENUMERATED(const BIGNUM *bn, ASN1_ENUMERATED *ai)
|
|
{
|
|
ASN1_ENUMERATED *ret;
|
|
int len, j;
|
|
|
|
if (ai == NULL)
|
|
ret = ASN1_ENUMERATED_new();
|
|
else
|
|
ret = ai;
|
|
if (ret == NULL) {
|
|
ASN1error(ERR_R_NESTED_ASN1_ERROR);
|
|
goto err;
|
|
}
|
|
if (BN_is_negative(bn))
|
|
ret->type = V_ASN1_NEG_ENUMERATED;
|
|
else
|
|
ret->type = V_ASN1_ENUMERATED;
|
|
j = BN_num_bits(bn);
|
|
len = ((j == 0) ? 0 : ((j / 8) + 1));
|
|
if (ret->length < len + 4) {
|
|
unsigned char *new_data = realloc(ret->data, len + 4);
|
|
if (!new_data) {
|
|
ASN1error(ERR_R_MALLOC_FAILURE);
|
|
goto err;
|
|
}
|
|
ret->data = new_data;
|
|
}
|
|
ret->length = BN_bn2bin(bn, ret->data);
|
|
|
|
/* Correct zero case */
|
|
if (!ret->length) {
|
|
ret->data[0] = 0;
|
|
ret->length = 1;
|
|
}
|
|
return (ret);
|
|
|
|
err:
|
|
if (ret != ai)
|
|
ASN1_ENUMERATED_free(ret);
|
|
return (NULL);
|
|
}
|
|
|
|
BIGNUM *
|
|
ASN1_ENUMERATED_to_BN(const ASN1_ENUMERATED *ai, BIGNUM *bn)
|
|
{
|
|
BIGNUM *ret;
|
|
|
|
if ((ret = BN_bin2bn(ai->data, ai->length, bn)) == NULL)
|
|
ASN1error(ASN1_R_BN_LIB);
|
|
else if (ai->type == V_ASN1_NEG_ENUMERATED)
|
|
BN_set_negative(ret, 1);
|
|
return (ret);
|
|
}
|