static void int_thread_del_item(const ERR_STATE *d)
{
ERR_STATE *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(thread_get)(0);
if (!hash)
return;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
p = (ERR_STATE *)lh_delete(hash, d);
/* make sure we don't leak memory */
if (int_thread_hash_references == 1
&& int_thread_hash && (lh_num_items(int_thread_hash) == 0))
{
lh_free(int_thread_hash);
int_thread_hash = NULL;
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
ERRFN(thread_release)(&hash);
if (p)
ERR_STATE_free(p);
}
ERR_STATE *ERR_get_state(void)
{
ERR_STATE *state = NULL;
if (!RUN_ONCE(&err_init, err_do_init))
return NULL;
state = CRYPTO_THREAD_get_local(&err_thread_local);
if (state == NULL) {
state = OPENSSL_zalloc(sizeof(*state));
if (state == NULL)
return NULL;
if (!CRYPTO_THREAD_set_local(&err_thread_local, state)) {
ERR_STATE_free(state);
return NULL;
}
/* Ignore failures from these */
OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE);
}
return state;
}
void err_delete_thread_state(void)
{
ERR_STATE *state = ERR_get_state();
if (state == NULL)
return;
CRYPTO_THREAD_set_local(&err_thread_local, NULL);
ERR_STATE_free(state);
}
ERR_STATE *ERR_get_state(void)
{
ERR_STATE *ret=NULL,tmp,*tmpp;
int i;
unsigned long pid;
pid=(unsigned long)CRYPTO_thread_id();
CRYPTO_r_lock(CRYPTO_LOCK_ERR);
if (thread_hash == NULL)
{
CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (thread_hash == NULL)
{
MemCheck_off();
thread_hash=lh_new(pid_hash,pid_cmp);
MemCheck_on();
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
if (thread_hash == NULL) return(getFallback());
}
else
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
}
else
{
tmp.pid=pid;
ret=(ERR_STATE *)lh_retrieve(thread_hash,&tmp);
CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
}
/* ret == the error state, if NULL, make a new one */
if (ret == NULL)
{
ret=(ERR_STATE *)Malloc(sizeof(ERR_STATE));
if (ret == NULL) return(getFallback());
ret->pid=pid;
ret->top=0;
ret->bottom=0;
for (i=0; i<ERR_NUM_ERRORS; i++)
{
ret->err_data[i]=NULL;
ret->err_data_flags[i]=0;
}
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
tmpp=(ERR_STATE *)lh_insert(thread_hash,ret);
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
if (tmpp != NULL) /* old entry - should not happen */
{
ERR_STATE_free(tmpp);
}
}
return(ret);
}
ERR_STATE *ERR_get_state(void)
{
static ERR_STATE fallback;
ERR_STATE *ret,tmp,*tmpp=NULL;
int i;
unsigned long pid;
err_fns_check();
pid=(unsigned long)CRYPTO_thread_id();
tmp.pid=pid;
ret=ERRFN(thread_get_item)(&tmp);
/* ret == the error state, if NULL, make a new one */
if (ret == NULL)
{
ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
if (ret == NULL) return(&fallback);
ret->pid=pid;
ret->top=0;
ret->bottom=0;
for (i=0; i<ERR_NUM_ERRORS; i++)
{
ret->err_data[i]=NULL;
ret->err_data_flags[i]=0;
}
tmpp = ERRFN(thread_set_item)(ret);
/* To check if insertion failed, do a get. */
if (ERRFN(thread_get_item)(ret) != ret)
{
ERR_STATE_free(ret); /* could not insert it */
return(&fallback);
}
/* If a race occured in this function and we came second, tmpp
* is the first one that we just replaced. */
if (tmpp)
ERR_STATE_free(tmpp);
}
return ret;
}
void ERR_remove_state(unsigned long pid)
{
ERR_STATE *p,tmp;
if (thread_hash == NULL)
return;
if (pid == 0)
pid=(unsigned long)CRYPTO_thread_id();
tmp.pid=pid;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
p=(ERR_STATE *)lh_delete(thread_hash,&tmp);
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
if (p != NULL) ERR_STATE_free(p);
}
ERR_STATE *ERR_get_state(void)
{
ERR_STATE *state;
int saveerrno = get_last_sys_error();
if (!OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY, NULL))
return NULL;
if (!RUN_ONCE(&err_init, err_do_init))
return NULL;
state = CRYPTO_THREAD_get_local(&err_thread_local);
if (state == (ERR_STATE*)-1)
return NULL;
if (state == NULL) {
if (!CRYPTO_THREAD_set_local(&err_thread_local, (ERR_STATE*)-1))
return NULL;
if ((state = OPENSSL_zalloc(sizeof(*state))) == NULL) {
CRYPTO_THREAD_set_local(&err_thread_local, NULL);
return NULL;
}
if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE)
|| !CRYPTO_THREAD_set_local(&err_thread_local, state)) {
ERR_STATE_free(state);
CRYPTO_THREAD_set_local(&err_thread_local, NULL);
return NULL;
}
/* Ignore failures from these */
OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
}
set_sys_error(saveerrno);
return state;
}
void ERR_remove_state(unsigned long pid)
{
ERR_STATE *p = NULL,tmp;
if (thread_hash == NULL)
return;
if (pid == 0)
pid=(unsigned long)CRYPTO_thread_id();
tmp.pid=pid;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (thread_hash)
{
p=(ERR_STATE *)lh_delete(thread_hash,&tmp);
if (lh_num_items(thread_hash) == 0)
{
/* make sure we don't leak memory */
lh_free(thread_hash);
thread_hash = NULL;
}
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
if (p != NULL) ERR_STATE_free(p);
}
ERR_STATE *ERR_get_state(void)
{
static ERR_STATE fallback;
ERR_STATE *ret=NULL,tmp,*tmpp=NULL;
int thread_state_exists;
int i;
unsigned long pid;
pid=(unsigned long)CRYPTO_thread_id();
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (thread_hash != NULL)
{
tmp.pid=pid;
ret=(ERR_STATE *)lh_retrieve(thread_hash,&tmp);
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
/* ret == the error state, if NULL, make a new one */
if (ret == NULL)
{
ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
if (ret == NULL) return(&fallback);
ret->pid=pid;
ret->top=0;
ret->bottom=0;
for (i=0; i<ERR_NUM_ERRORS; i++)
{
ret->err_data[i]=NULL;
ret->err_data_flags[i]=0;
}
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
/* no entry yet in thread_hash for current thread -
* thus, it may have changed since we last looked at it */
if (thread_hash == NULL)
thread_hash = lh_new(pid_hash, pid_cmp);
if (thread_hash == NULL)
thread_state_exists = 0; /* allocation error */
else
{
tmpp=(ERR_STATE *)lh_insert(thread_hash,ret);
thread_state_exists = 1;
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
if (!thread_state_exists)
{
ERR_STATE_free(ret); /* could not insert it */
return(&fallback);
}
if (tmpp != NULL) /* old entry - should not happen */
{
ERR_STATE_free(tmpp);
}
}
return(ret);
}
