#include <openssl/err.h>

#include "dtls_openssl.h"
#include "cw_log.h"

static BIO_METHOD bio_methods = {
	BIO_TYPE_DGRAM,
	"cw packet",
	dtls_openssl_bio_write,
	dtls_openssl_bio_read,
	dtls_openssl_bio_puts,
	NULL, 			// dgram_gets
	dtls_openssl_bio_ctrl,
	dtls_openssl_bio_new,
	dtls_openssl_bio_free,
	NULL,
};


static unsigned int psk_client_cb(SSL *ssl, 
		   const char *hint,
		   char *identity,
		   unsigned int max_identity_len,
		   unsigned char *psk,
		   unsigned int max_psk_len) {

	BIO * b = SSL_get_rbio(ssl);
	struct conn * conn = b->ptr;

//	printf("KEYY: %s\n",conn->dtls_psk);

	snprintf(identity, max_identity_len, "CLient_identity");

	int l = conn->dtls_psk_len < max_psk_len ? conn->dtls_psk_len : max_psk_len;
	memcpy(psk,conn->dtls_psk,l);
	return l;

}


int dtls_openssl_connect(struct conn * conn)
{
	if (!conn->dtls_data)
		conn->dtls_data = dtls_openssl_data_create(conn,DTLSv1_client_method(),&bio_methods);

	struct dtls_openssl_data * d = (struct dtls_openssl_data*)conn->dtls_data;
	if (!d)
		return 0;

	if (conn->dtls_psk)
		SSL_set_psk_client_callback( d->ssl, psk_client_cb);


//	dtls_openssl_set_certs(conn,d);

	if (conn->dtls_cert_file && conn->dtls_key_file){
	}

//	char errstr[256];
	int rc; 
//	do{ 
		rc = SSL_connect(d->ssl);
/*

		if (rc <= 0){
			int e;
			e = SSL_get_error(d->ssl,rc);
			printf("Get Err %i\n",e);


			printf("SSL Connect rc = %i\n",rc);
			e = ERR_get_error();
			ERR_error_string(e,errstr);
			cw_log(LOG_ERR,"SSL_connect %s",errstr);

			


		}

*/

		if(rc==1){
			conn->read = dtls_openssl_read;
			conn->write = dtls_openssl_write;
			return 1;
		}


//		rc = dtls_openssl_log_error(d->ssl,rc,"DTLS connect");
		rc = dtls_openssl_log_error(0,rc,"DTLS connect");
	       
//	} while (rc == 0 );

//	printf("DTLS connect RC: %i\n",rc);

//	int e = ERR_get_error();
//	ERR_error_string(e,errstr);
//	cw_log(LOG_ERR,"SSL_accept %s",errstr);


	return 0;
}