#include <gnutls/gnutls.h>

#include <gnutls/socket.h>

#define SOCKET_FLAG_UDP 1

#define SOCKET_FLAG_FASTOPEN (1<<1)

#define SOCKET_FLAG_STARTTLS (1<<2)

#define SOCKET_FLAG_RAW (1<<3) /* unencrypted */

#define SOCKET_FLAG_VERBOSE (1<<4)

#define SOCKET_FLAG_SKIP_INIT (1<<5)

typedef struct {

	int fd;

	gnutls_session_t session;

	int secure;

	char *hostname;

	const char *app_proto;

	char *ip;

	char *service;

	struct addrinfo *ptr;

	struct addrinfo *addr_info;

	int verbose;

	/* Needed for TCP Fast Open */

	struct sockaddr_storage connect_addr;

	socklen_t connect_addrlen;

	FILE *server_trace;

	FILE *client_trace;

	/* resumption data */

	gnutls_datum_t rdata;

} socket_st;

/* calling program must provide that */

extern gnutls_session_t init_tls_session(const char *host);

extern int do_handshake(socket_st * socket);

ssize_t socket_recv(const socket_st * socket, void *buffer,

		    int buffer_size);

ssize_t socket_recv_timeout(const socket_st * socket, void *buffer,

		    int buffer_size, unsigned ms);

ssize_t socket_send(const socket_st * socket, const void *buffer,

		    int buffer_size);

ssize_t socket_send_range(const socket_st * socket, const void *buffer,

			  int buffer_size, gnutls_range_st * range);

void

socket_open2(socket_st * hd, const char *hostname, const char *service,

	    const char *app_proto, int flags, const char *msg, gnutls_datum_t *rdata,

	    FILE *server_trace, FILE *client_trace);

#define socket_open(hd, host, service, app_proto, flags, msg, rdata) \

	socket_open2(hd, host, service, app_proto, flags, msg, rdata, NULL, NULL)

void socket_bye(socket_st * socket, unsigned polite);

int service_to_port(const char *service, const char *proto);

const char *port_to_service(const char *sport, const char *proto);

int starttls_proto_to_port(const char *app_proto);

const char *starttls_proto_to_service(const char *app_proto);

void canonicalize_host(char *hostname, char *service, unsigned service_size);

#define CONNECT_MSG "Connecting to"