bind/lib/isc/openssl_shim.c

/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */

#include <inttypes.h>
#include <stdlib.h>
#include <string.h>

#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/opensslv.h>
#include <openssl/ssl.h>

#include <isc/util.h>

#include "openssl_shim.h"

#if !HAVE_BIO_READ_EX
int
BIO_read_ex(BIO *b, void *data, size_t dlen, size_t *readbytes) {
	int rv = BIO_read(b, data, dlen);
	if (rv > 0) {
		*readbytes = rv;
		rv = 1;
	}

	return rv;
}
#endif /* !HAVE_BIO_READ_EX */

#if !HAVE_BIO_WRITE_EX
int
BIO_write_ex(BIO *b, const void *data, size_t dlen, size_t *written) {
	int rv = BIO_write(b, data, dlen);
	if (rv > 0) {
		*written = rv;
		rv = 1;
	}

	return rv;
}
#endif /* !HAVE_BIO_WRITE_EX */

#if !HAVE_SSL_CTX_SET1_CERT_STORE
void
SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) {
	(void)X509_STORE_up_ref(store);

	SSL_CTX_set_cert_store(ctx, store);
}
#endif /* !HAVE_SSL_CTX_SET1_CERT_STORE */

#if !HAVE_ERR_GET_ERROR_ALL
static const char err_empty_string = '\0';

unsigned long
ERR_get_error_all(const char **file, int *line, const char **func,
		  const char **data, int *flags) {
	SET_IF_NOT_NULL(func, &err_empty_string);
	return ERR_get_error_line_data(file, line, data, flags);
}
#endif /* if !HAVE_ERR_GET_ERROR_ALL */