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#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)
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;
/* 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_open(socket_st * hd, const char *hostname, const char *service,
const char *app_proto, int flags, const char *msg, gnutls_datum_t *rdata);
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"
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