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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
INCLUDES = """
#include <openssl/dsa.h>
"""
TYPES = """
typedef ... DSA;
"""
FUNCTIONS = """
int DSA_generate_key(DSA *);
DSA *DSA_new(void);
void DSA_free(DSA *);
DSA *DSAparams_dup(DSA *);
int DSA_size(const DSA *);
int DSA_sign(int, const unsigned char *, int, unsigned char *, unsigned int *,
DSA *);
int DSA_verify(int, const unsigned char *, int, const unsigned char *, int,
DSA *);
/* added in 1.1.0 to access the opaque struct */
void DSA_get0_pqg(const DSA *, const BIGNUM **, const BIGNUM **,
const BIGNUM **);
int DSA_set0_pqg(DSA *, BIGNUM *, BIGNUM *, BIGNUM *);
void DSA_get0_key(const DSA *, const BIGNUM **, const BIGNUM **);
int DSA_set0_key(DSA *, BIGNUM *, BIGNUM *);
"""
MACROS = """
int DSA_generate_parameters_ex(DSA *, int, unsigned char *, int,
int *, unsigned long *, BN_GENCB *);
"""
CUSTOMIZATIONS = """
/* These functions were added in OpenSSL 1.1.0-pre5 (beta2) */
#if OPENSSL_VERSION_NUMBER < 0x10100005 || defined(LIBRESSL_VERSION_NUMBER)
void DSA_get0_pqg(const DSA *d,
const BIGNUM **p, const BIGNUM **q, const BIGNUM **g)
{
if (p != NULL)
*p = d->p;
if (q != NULL)
*q = d->q;
if (g != NULL)
*g = d->g;
}
int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g)
{
/* If the fields p, q and g in d are NULL, the corresponding input
* parameters MUST be non-NULL.
*/
if ((d->p == NULL && p == NULL)
|| (d->q == NULL && q == NULL)
|| (d->g == NULL && g == NULL))
return 0;
if (p != NULL) {
BN_free(d->p);
d->p = p;
}
if (q != NULL) {
BN_free(d->q);
d->q = q;
}
if (g != NULL) {
BN_free(d->g);
d->g = g;
}
return 1;
}
void DSA_get0_key(const DSA *d,
const BIGNUM **pub_key, const BIGNUM **priv_key)
{
if (pub_key != NULL)
*pub_key = d->pub_key;
if (priv_key != NULL)
*priv_key = d->priv_key;
}
int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key)
{
/* If the field pub_key in d is NULL, the corresponding input
* parameters MUST be non-NULL. The priv_key field may
* be left NULL.
*/
if (d->pub_key == NULL && pub_key == NULL)
return 0;
if (pub_key != NULL) {
BN_free(d->pub_key);
d->pub_key = pub_key;
}
if (priv_key != NULL) {
BN_free(d->priv_key);
d->priv_key = priv_key;
}
return 1;
}
#endif
"""
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