void
mach_init_ports(void)
{
mach_port_array_t ports;
mach_msg_type_number_t ports_count;
kern_return_t kr;
/*
* Find those ports important to every task.
*/
kr = task_get_special_port(mach_task_self(),
TASK_BOOTSTRAP_PORT,
&bootstrap_port);
if (kr != KERN_SUCCESS)
return;
kr = mach_ports_lookup(mach_task_self(), &ports,
&ports_count);
if ((kr != KERN_SUCCESS) ||
(ports_count < MACH_PORTS_SLOTS_USED))
return;
name_server_port = ports[NAME_SERVER_SLOT];
environment_port = ports[ENVIRONMENT_SLOT];
service_port = ports[SERVICE_SLOT];
/* get rid of out-of-line data so brk has a chance of working */
(void) vm_deallocate(mach_task_self(),
(vm_offset_t) ports,
(vm_size_t) (ports_count * sizeof *ports));
}
int main()
{
mach_port_t port;
kern_return_t err;
printf("THE MACH_TASK_SELF IS %d.\n", mach_task_self());
err = mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &port);
if (err != KERN_SUCCESS)
{
perror("ERROR:COULD NOT ALLOCATE THE PORT.\n");
return ;
}
printf("THE REGISTER PORT IS %d.\n", port);
mach_ports_register(mach_task_self(), &port, 1);
send(port, 9999);
mach_port_t *recvport;
int recv_num;
task_get_kernel_port(mach_task_self(),&port);
printf("SPECIAL KERNAL PORT IS %d.\n",port);
mach_ports_lookup(mach_task_self(), &recvport, &recv_num);
int i;
for (i = 0; i < recv_num; i++)
{
printf("THE RECV PORT IS %d.AND THE NUM IS %d.\n", *(recvport + i), recv_num);
}
return 0;
}
