System Trap - Returns the host self port
host_name_port_t mach_host_self( void );
The mach_host_self function returns send rights to the task's host self port. By default, this is the name port for the current host but can be a different value if so set.
[host-self send right] Send rights to the host's name port.
Functions: host_info, task_set_special_port.