#include <sys/types.h>

/*
 * TCP library
 * ipv4 and ipv6 compatible
 * All functions return -1 on error, and set errno appropriatly.
 */

void socket_set_connect_timeout(unsigned long msec);

/*
 * Returns a tcp socket in blocking state.
 * The call is blocking, use socket_set_connect_timeout() to define the maximum
 * number of milliseconds to wait
 */
int socket_connect(char *server, char *port);

/*
 * Returns a tcp socket in non-blocking state.
 */
int socket_listen(char *server, char *port);

/*
 * Returns a tcp socket in blocking state.
 * Host and port are return-value parameters, which will contain the peer adress
 * (in numerical form, not resolved to hostname/servicename), set to NULL to ignore.
 * Sock should be the value returned by socket_listen().
 */
int socket_accept(int sock, char *host, size_t host_len, char *port, size_t port_len);

/*
 * Closes a tcp stream
 */
void socket_close(int sock);