mirror of
https://github.com/openssl/openssl.git
synced 2024-12-15 06:01:37 +08:00
3cb7c5cfef
Reviewed-by: Rich Salz <rsalz@openssl.org> GH: #6208
221 lines
4.8 KiB
C
221 lines
4.8 KiB
C
/*
|
|
* 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(void)
|
|
{
|
|
static CRYPTO_REF_COUNT 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_UP_REF(&bio_count, &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;
|
|
}
|
|
biom->type = type;
|
|
return biom;
|
|
}
|
|
|
|
void BIO_meth_free(BIO_METHOD *biom)
|
|
{
|
|
if (biom != NULL) {
|
|
OPENSSL_free(biom->name);
|
|
OPENSSL_free(biom);
|
|
}
|
|
}
|
|
|
|
int (*BIO_meth_get_write(const BIO_METHOD *biom)) (BIO *, const char *, int)
|
|
{
|
|
return biom->bwrite_old;
|
|
}
|
|
|
|
int (*BIO_meth_get_write_ex(const BIO_METHOD *biom)) (BIO *, const char *, size_t,
|
|
size_t *)
|
|
{
|
|
return biom->bwrite;
|
|
}
|
|
|
|
/* Conversion for old style bwrite to new style */
|
|
int bwrite_conv(BIO *bio, const char *data, size_t datal, size_t *written)
|
|
{
|
|
int ret;
|
|
|
|
if (datal > INT_MAX)
|
|
datal = INT_MAX;
|
|
|
|
ret = bio->method->bwrite_old(bio, data, (int)datal);
|
|
|
|
if (ret <= 0) {
|
|
*written = 0;
|
|
return ret;
|
|
}
|
|
|
|
*written = (size_t)ret;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int BIO_meth_set_write(BIO_METHOD *biom,
|
|
int (*bwrite) (BIO *, const char *, int))
|
|
{
|
|
biom->bwrite_old = bwrite;
|
|
biom->bwrite = bwrite_conv;
|
|
return 1;
|
|
}
|
|
|
|
int BIO_meth_set_write_ex(BIO_METHOD *biom,
|
|
int (*bwrite) (BIO *, const char *, size_t, size_t *))
|
|
{
|
|
biom->bwrite_old = NULL;
|
|
biom->bwrite = bwrite;
|
|
return 1;
|
|
}
|
|
|
|
int (*BIO_meth_get_read(const BIO_METHOD *biom)) (BIO *, char *, int)
|
|
{
|
|
return biom->bread_old;
|
|
}
|
|
|
|
int (*BIO_meth_get_read_ex(const BIO_METHOD *biom)) (BIO *, char *, size_t, size_t *)
|
|
{
|
|
return biom->bread;
|
|
}
|
|
|
|
/* Conversion for old style bread to new style */
|
|
int bread_conv(BIO *bio, char *data, size_t datal, size_t *readbytes)
|
|
{
|
|
int ret;
|
|
|
|
if (datal > INT_MAX)
|
|
datal = INT_MAX;
|
|
|
|
ret = bio->method->bread_old(bio, data, (int)datal);
|
|
|
|
if (ret <= 0) {
|
|
*readbytes = 0;
|
|
return ret;
|
|
}
|
|
|
|
*readbytes = (size_t)ret;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int BIO_meth_set_read(BIO_METHOD *biom,
|
|
int (*bread) (BIO *, char *, int))
|
|
{
|
|
biom->bread_old = bread;
|
|
biom->bread = bread_conv;
|
|
return 1;
|
|
}
|
|
|
|
int BIO_meth_set_read_ex(BIO_METHOD *biom,
|
|
int (*bread) (BIO *, char *, size_t, size_t *))
|
|
{
|
|
biom->bread_old = NULL;
|
|
biom->bread = bread;
|
|
return 1;
|
|
}
|
|
|
|
int (*BIO_meth_get_puts(const 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(const 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(const 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(const 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(const 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(const 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;
|
|
}
|