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RRTcodebaseC

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struct CRYPTO_dynlock_value* value = (struct CRYPTO_dynlock_value*)malloc(sizeof(struct CRYPTO_dynlock_value));
if (NULL==value) {
return NULL;
}
pthread_mutex_init(&value->mutex, NULL);
return value;
}
static void dyn_lock_function(int mode, struct CRYPTO_dynlock_value* l, const char* file, int line)
{
if (mode & CRYPTO_LOCK) {
pthread_mutex_lock(&l->mutex);
}
else {
pthread_mutex_unlock(&l->mutex);
}
}
static void dyn_destroy_function(struct CRYPTO_dynlock_value* l, const char* file, int line)
{
pthread_mutex_destroy(&l->mutex);
free(l);
}
void dc_openssl_init(void)
{
pthread_mutex_lock(&s_init_lock);
s_init_counter++;
if (s_init_counter==1)
{
if (!s_init_not_required) {
s_mutex_buf = (pthread_mutex_t*)malloc(CRYPTO_num_locks() * sizeof(*s_mutex_buf));
if (s_mutex_buf==NULL) {
exit(53);
}
for (int i=0 ; i<CRYPTO_num_locks(); i++) {
pthread_mutex_init(&s_mutex_buf[i], NULL);
}
CRYPTO_set_id_callback(id_function);
CRYPTO_set_locking_callback(locking_function);
CRYPTO_set_dynlock_create_callback(dyn_create_function);
CRYPTO_set_dynlock_lock_callback(dyn_lock_function);
CRYPTO_set_dynlock_destroy_callback(dyn_destroy_function);
// see https://wiki.openssl.org/index.php/Library_Initialization
#ifdef __APPLE__
OPENSSL_init();
#else
SSL_load_error_strings();
#if (OPENSSL_VERSION_NUMBER < 0x10100000L) || (defined(LIBRESSL_VERSION_NUMBER) && (LIBRESSL_VERSION_NUMBER < 0x2070000fL))
SSL_library_init();
#else
OPENSSL_init_ssl(0, NULL);
#endif
#endif
OpenSSL_add_all_algorithms();
}
mailstream_openssl_init_not_required();
}
pthread_mutex_unlock(&s_init_lock);
}
void dc_openssl_exit(void)
{
pthread_mutex_lock(&s_init_lock);
if (s_init_counter>0)
{
s_init_counter--;
if (s_init_counter==0 && !s_init_not_required)
{
CRYPTO_set_id_callback(NULL);
CRYPTO_set_locking_callback(NULL);
CRYPTO_set_dynlock_create_callback(NULL);
CRYPTO_set_dynlock_lock_callback(NULL);
CRYPTO_set_dynlock_destroy_callback(NULL);
for (int i=0 ; i<CRYPTO_num_locks(); i++) {
pthread_mutex_destroy(&s_mutex_buf[i]);
}
free(s_mutex_buf);
s_mutex_buf = NULL;
}
}
pthread_mutex_unlock(&s_init_lock);
}
```
Filename: dc_param.c
```c
#include <stdlib.h>