int port;
} s_xbt_host_t, *xbt_host_t;
-xbt_host_t xbt_host_new(char *name, int port);
+xbt_host_t xbt_host_new(const char *name, int port);
+xbt_host_t xbt_host_from_string(const char *hostport);
void xbt_host_free(xbt_host_t host);
void xbt_host_free_voidp(void *d);