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-rw-r--r--crypto/asn1/a_enum.c181
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diff --git a/crypto/asn1/a_enum.c b/crypto/asn1/a_enum.c
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-/* crypto/asn1/a_enum.c */
-/* 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 <stdio.h>
-#include "cryptlib.h"
-#include <openssl/asn1.h>
-#include <openssl/bn.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)) {
- if (a->data != NULL)
- OPENSSL_free(a->data);
- if ((a->data =
- (unsigned char *)OPENSSL_malloc(sizeof(long) + 1)) != NULL)
- memset((char *)a->data, 0, sizeof(long) + 1);
- }
- if (a->data == NULL) {
- ASN1err(ASN1_F_ASN1_ENUMERATED_SET, 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(ASN1_ENUMERATED *a)
-{
- int neg = 0, i;
- 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 (0xffffffffL);
- }
- if (a->data == NULL)
- return 0;
-
- for (i = 0; i < a->length; i++) {
- r <<= 8;
- r |= (unsigned char)a->data[i];
- }
- if (neg)
- r = -r;
- return (r);
-}
-
-ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(BIGNUM *bn, ASN1_ENUMERATED *ai)
-{
- ASN1_ENUMERATED *ret;
- int len, j;
-
- if (ai == NULL)
- ret = M_ASN1_ENUMERATED_new();
- else
- ret = ai;
- if (ret == NULL) {
- ASN1err(ASN1_F_BN_TO_ASN1_ENUMERATED, 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 = OPENSSL_realloc(ret->data, len + 4);
- if (!new_data) {
- ASN1err(ASN1_F_BN_TO_ASN1_ENUMERATED, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- ret->data = new_data;
- }
-
- ret->length = BN_bn2bin(bn, ret->data);
- return (ret);
- err:
- if (ret != ai)
- M_ASN1_ENUMERATED_free(ret);
- return (NULL);
-}
-
-BIGNUM *ASN1_ENUMERATED_to_BN(ASN1_ENUMERATED *ai, BIGNUM *bn)
-{
- BIGNUM *ret;
-
- if ((ret = BN_bin2bn(ai->data, ai->length, bn)) == NULL)
- ASN1err(ASN1_F_ASN1_ENUMERATED_TO_BN, ASN1_R_BN_LIB);
- else if (ai->type == V_ASN1_NEG_ENUMERATED)
- BN_set_negative(ret, 1);
- return (ret);
-}