BIO *BIO_dup_chain(BIO *in)
{
BIO *ret=NULL,*eoc=NULL,*bio,*new_bio;
for (bio=in; bio != NULL; bio=bio->next_bio)
{
if ((new_bio=BIO_new(bio->method)) == NULL) goto err;
new_bio->callback=bio->callback;
new_bio->cb_arg=bio->cb_arg;
new_bio->init=bio->init;
new_bio->shutdown=bio->shutdown;
new_bio->flags=bio->flags;
/* This will let SSL_s_sock() work with stdin/stdout */
new_bio->num=bio->num;
if (!BIO_dup_state(bio,(char *)new_bio))
{
BIO_free(new_bio);
goto err;
}
/* copy app data */
if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_BIO, &new_bio->ex_data,
&bio->ex_data))
goto err;
if (ret == NULL)
{
eoc=new_bio;
ret=eoc;
}
else
{
BIO_push(eoc,new_bio);
eoc=new_bio;
}
}
return(ret);
err:
if (ret != NULL)
BIO_free(ret);
return(NULL);
}
EC_KEY *EC_KEY_copy(EC_KEY *dest, const EC_KEY *src)
{
if (dest == NULL || src == NULL) {
ECerr(EC_F_EC_KEY_COPY, ERR_R_PASSED_NULL_PARAMETER);
return NULL;
}
if (src->meth != dest->meth) {
if (dest->meth->finish != NULL)
dest->meth->finish(dest);
if (dest->group && dest->group->meth->keyfinish)
dest->group->meth->keyfinish(dest);
#ifndef OPENSSL_NO_ENGINE
if (ENGINE_finish(dest->engine) == 0)
return 0;
dest->engine = NULL;
#endif
}
/* copy the parameters */
if (src->group != NULL) {
const EC_METHOD *meth = EC_GROUP_method_of(src->group);
/* clear the old group */
EC_GROUP_free(dest->group);
dest->group = EC_GROUP_new(meth);
if (dest->group == NULL)
return NULL;
if (!EC_GROUP_copy(dest->group, src->group))
return NULL;
/* copy the public key */
if (src->pub_key != NULL) {
EC_POINT_free(dest->pub_key);
dest->pub_key = EC_POINT_new(src->group);
if (dest->pub_key == NULL)
return NULL;
if (!EC_POINT_copy(dest->pub_key, src->pub_key))
return NULL;
}
/* copy the private key */
if (src->priv_key != NULL) {
if (dest->priv_key == NULL) {
dest->priv_key = BN_new();
if (dest->priv_key == NULL)
return NULL;
}
if (!BN_copy(dest->priv_key, src->priv_key))
return NULL;
if (src->group->meth->keycopy
&& src->group->meth->keycopy(dest, src) == 0)
return NULL;
}
}
/* copy the rest */
dest->enc_flag = src->enc_flag;
dest->conv_form = src->conv_form;
dest->version = src->version;
dest->flags = src->flags;
if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_EC_KEY,
&dest->ex_data, &src->ex_data))
return NULL;
if (src->meth != dest->meth) {
#ifndef OPENSSL_NO_ENGINE
if (src->engine != NULL && ENGINE_init(src->engine) == 0)
return NULL;
dest->engine = src->engine;
#endif
dest->meth = src->meth;
}
if (src->meth->copy != NULL && src->meth->copy(dest, src) == 0)
return NULL;
return dest;
}
/*
* Create a new SSL_SESSION and duplicate the contents of |src| into it. If
* ticket == 0 then no ticket information is duplicated, otherwise it is.
*/
SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket)
{
SSL_SESSION *dest;
dest = OPENSSL_malloc(sizeof(*src));
if (dest == NULL) {
goto err;
}
memcpy(dest, src, sizeof(*dest));
/*
* Set the various pointers to NULL so that we can call SSL_SESSION_free in
* the case of an error whilst halfway through constructing dest
*/
#ifndef OPENSSL_NO_PSK
dest->psk_identity_hint = NULL;
dest->psk_identity = NULL;
#endif
dest->ciphers = NULL;
dest->ext.hostname = NULL;
#ifndef OPENSSL_NO_EC
dest->ext.ecpointformats = NULL;
dest->ext.supportedgroups = NULL;
#endif
dest->ext.tick = NULL;
#ifndef OPENSSL_NO_SRP
dest->srp_username = NULL;
#endif
memset(&dest->ex_data, 0, sizeof(dest->ex_data));
/* We deliberately don't copy the prev and next pointers */
dest->prev = NULL;
dest->next = NULL;
dest->references = 1;
dest->lock = CRYPTO_THREAD_lock_new();
if (dest->lock == NULL)
goto err;
if (src->peer != NULL)
X509_up_ref(src->peer);
if (src->peer_chain != NULL) {
dest->peer_chain = X509_chain_up_ref(src->peer_chain);
if (dest->peer_chain == NULL)
goto err;
}
#ifndef OPENSSL_NO_PSK
if (src->psk_identity_hint) {
dest->psk_identity_hint = OPENSSL_strdup(src->psk_identity_hint);
if (dest->psk_identity_hint == NULL) {
goto err;
}
}
if (src->psk_identity) {
dest->psk_identity = OPENSSL_strdup(src->psk_identity);
if (dest->psk_identity == NULL) {
goto err;
}
}
#endif
if (src->ciphers != NULL) {
dest->ciphers = sk_SSL_CIPHER_dup(src->ciphers);
if (dest->ciphers == NULL)
goto err;
}
if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL_SESSION,
&dest->ex_data, &src->ex_data)) {
goto err;
}
if (src->ext.hostname) {
dest->ext.hostname = OPENSSL_strdup(src->ext.hostname);
if (dest->ext.hostname == NULL) {
goto err;
}
}
#ifndef OPENSSL_NO_EC
if (src->ext.ecpointformats) {
dest->ext.ecpointformats =
OPENSSL_memdup(src->ext.ecpointformats,
src->ext.ecpointformats_len);
if (dest->ext.ecpointformats == NULL)
goto err;
}
if (src->ext.supportedgroups) {
dest->ext.supportedgroups =
OPENSSL_memdup(src->ext.supportedgroups,
src->ext.supportedgroups_len);
if (dest->ext.supportedgroups == NULL)
goto err;
}
#endif
if (ticket != 0) {
dest->ext.tick =
OPENSSL_memdup(src->ext.tick, src->ext.ticklen);
if (dest->ext.tick == NULL)
goto err;
} else {
dest->ext.tick_lifetime_hint = 0;
dest->ext.ticklen = 0;
}
#ifndef OPENSSL_NO_SRP
if (src->srp_username) {
dest->srp_username = OPENSSL_strdup(src->srp_username);
if (dest->srp_username == NULL) {
goto err;
}
}
#endif
return dest;
err:
SSLerr(SSL_F_SSL_SESSION_DUP, ERR_R_MALLOC_FAILURE);
SSL_SESSION_free(dest);
return NULL;
}
