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/*
* Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (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 <openssl/core_numbers.h>
#include "prov/bio.h"
static OSSL_BIO_new_file_fn *c_bio_new_file = NULL;
static OSSL_BIO_new_membuf_fn *c_bio_new_membuf = NULL;
static OSSL_BIO_read_ex_fn *c_bio_read_ex = NULL;
static OSSL_BIO_free_fn *c_bio_free = NULL;
static OSSL_BIO_vprintf_fn *c_bio_vprintf = NULL;
int ossl_prov_bio_from_dispatch(const OSSL_DISPATCH *fns)
{
for (; fns->function_id != 0; fns++) {
switch (fns->function_id) {
case OSSL_FUNC_BIO_NEW_FILE:
if (c_bio_new_file == NULL)
c_bio_new_file = OSSL_get_BIO_new_file(fns);
break;
case OSSL_FUNC_BIO_NEW_MEMBUF:
if (c_bio_new_membuf == NULL)
c_bio_new_membuf = OSSL_get_BIO_new_membuf(fns);
break;
case OSSL_FUNC_BIO_READ_EX:
if (c_bio_read_ex == NULL)
c_bio_read_ex = OSSL_get_BIO_read_ex(fns);
break;
case OSSL_FUNC_BIO_FREE:
if (c_bio_free == NULL)
c_bio_free = OSSL_get_BIO_free(fns);
break;
case OSSL_FUNC_BIO_VPRINTF:
if (c_bio_vprintf == NULL)
c_bio_vprintf = OSSL_get_BIO_vprintf(fns);
break;
}
}
return 1;
}
BIO *ossl_prov_bio_new_file(const char *filename, const char *mode)
{
if (c_bio_new_file == NULL)
return NULL;
return c_bio_new_file(filename, mode);
}
BIO *ossl_prov_bio_new_membuf(const char *filename, int len)
{
if (c_bio_new_membuf == NULL)
return NULL;
return c_bio_new_membuf(filename, len);
}
int ossl_prov_bio_read_ex(BIO *bio, void *data, size_t data_len,
size_t *bytes_read)
{
if (c_bio_read_ex == NULL)
return 0;
return c_bio_read_ex(bio, data, data_len, bytes_read);
}
int ossl_prov_bio_free(BIO *bio)
{
if (c_bio_free == NULL)
return 0;
return c_bio_free(bio);
}
int ossl_prov_bio_vprintf(BIO *bio, const char *format, va_list ap)
{
if (c_bio_vprintf == NULL)
return -1;
return c_bio_vprintf(bio, format, ap);
}
int ossl_prov_bio_printf(BIO *bio, const char *format, ...)
{
va_list ap;
int ret;
va_start(ap, format);
ret = ossl_prov_bio_vprintf(bio, format, ap);
va_end(ap);
return ret;
}
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