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/*
* Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "bio_lcl.h"
#include <internal/thread_once.h>
CRYPTO_RWLOCK *bio_type_lock = NULL;
static CRYPTO_ONCE bio_type_init = CRYPTO_ONCE_STATIC_INIT;
DEFINE_RUN_ONCE_STATIC(do_bio_type_init)
{
bio_type_lock = CRYPTO_THREAD_lock_new();
return bio_type_lock != NULL;
}
int BIO_get_new_index()
{
static int bio_count = BIO_TYPE_START;
int newval;
if (!RUN_ONCE(&bio_type_init, do_bio_type_init)) {
BIOerr(BIO_F_BIO_GET_NEW_INDEX, ERR_R_MALLOC_FAILURE);
return -1;
}
if (!CRYPTO_atomic_add(&bio_count, 1, &newval, bio_type_lock))
return -1;
return newval;
}
BIO_METHOD *BIO_meth_new(int type, const char *name)
{
BIO_METHOD *biom = OPENSSL_zalloc(sizeof(BIO_METHOD));
if (biom == NULL
|| (biom->name = OPENSSL_strdup(name)) == NULL) {
OPENSSL_free(biom);
BIOerr(BIO_F_BIO_METH_NEW, ERR_R_MALLOC_FAILURE);
return NULL;
}
return biom;
}
void BIO_meth_free(BIO_METHOD *biom)
{
if (biom != NULL) {
OPENSSL_free(biom->name);
OPENSSL_free(biom);
}
}
int (*BIO_meth_get_write(BIO_METHOD *biom)) (BIO *, const char *, int)
{
return biom->bwrite;
}
int BIO_meth_set_write(BIO_METHOD *biom,
int (*bwrite) (BIO *, const char *, int))
{
biom->bwrite = bwrite;
return 1;
}
int (*BIO_meth_get_read(BIO_METHOD *biom)) (BIO *, char *, int)
{
return biom->bread;
}
int BIO_meth_set_read(BIO_METHOD *biom,
int (*bread) (BIO *, char *, int))
{
biom->bread = bread;
return 1;
}
int (*BIO_meth_get_puts(BIO_METHOD *biom)) (BIO *, const char *)
{
return biom->bputs;
}
int BIO_meth_set_puts(BIO_METHOD *biom,
int (*bputs) (BIO *, const char *))
{
biom->bputs = bputs;
return 1;
}
int (*BIO_meth_get_gets(BIO_METHOD *biom)) (BIO *, char *, int)
{
return biom->bgets;
}
int BIO_meth_set_gets(BIO_METHOD *biom,
int (*bgets) (BIO *, char *, int))
{
biom->bgets = bgets;
return 1;
}
long (*BIO_meth_get_ctrl(BIO_METHOD *biom)) (BIO *, int, long, void *)
{
return biom->ctrl;
}
int BIO_meth_set_ctrl(BIO_METHOD *biom,
long (*ctrl) (BIO *, int, long, void *))
{
biom->ctrl = ctrl;
return 1;
}
int (*BIO_meth_get_create(BIO_METHOD *biom)) (BIO *)
{
return biom->create;
}
int BIO_meth_set_create(BIO_METHOD *biom, int (*create) (BIO *))
{
biom->create = create;
return 1;
}
int (*BIO_meth_get_destroy(BIO_METHOD *biom)) (BIO *)
{
return biom->destroy;
}
int BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy) (BIO *))
{
biom->destroy = destroy;
return 1;
}
long (*BIO_meth_get_callback_ctrl(BIO_METHOD *biom)) (BIO *, int, BIO_info_cb *)
{
return biom->callback_ctrl;
}
int BIO_meth_set_callback_ctrl(BIO_METHOD *biom,
long (*callback_ctrl) (BIO *, int,
BIO_info_cb *))
{
biom->callback_ctrl = callback_ctrl;
return 1;
}
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