static task_t pid_to_task(int pid) {
task_t task = 0;
static task_t old_task = 0;
static int old_pid = -1;
kern_return_t kr;
if (old_task != 0 && old_pid == pid) {
return old_task;
} else if (old_task != 0 && old_pid != pid) {
//we changed the process pid so deallocate a ref from the old_task
//since we are going to get a new task
kr = mach_port_deallocate (mach_task_self (), old_task);
if (kr != KERN_SUCCESS) {
eprintf ("pid_to_task: fail to deallocate port\n");
return 0;
}
}
int err = task_for_pid (mach_task_self (), (pid_t)pid, &task);
if ((err != KERN_SUCCESS) || !MACH_PORT_VALID (task)) {
task = task_for_pid_workaround (pid);
if (task == MACH_PORT_NULL) {
task = task_for_pid_ios9pangu (pid);
if (task != MACH_PORT_NULL) {
//eprintf ("Failed to get task %d for pid %d.\n", (int)task, (int)pid);
//eprintf ("Missing priviledges? 0x%x: %s\n", err, MACH_ERROR_STRING (err));
return -1;
}
}
}
old_task = task;
old_pid = pid;
return task;
}
static task_t pid_to_task(RIODesc *fd, int pid) {
task_t task = 0;
static task_t old_task = 0;
static int old_pid = -1;
kern_return_t kr;
RIODescData *iodd = fd? (RIODescData *)fd->data: NULL;
RIOMach *riom = NULL;
if (iodd) {
riom = iodd->data;
if (riom && riom->task) {
old_task = riom->task;
riom->task = 0;
old_pid = iodd->pid;
}
}
if (old_task != 0) {
if (old_pid == pid) {
return old_task;
}
//we changed the process pid so deallocate a ref from the old_task
//since we are going to get a new task
kr = mach_port_deallocate (mach_task_self (), old_task);
if (kr != KERN_SUCCESS) {
eprintf ("pid_to_task: fail to deallocate port\n");
return 0;
}
}
int err = task_for_pid (mach_task_self (), (pid_t)pid, &task);
if ((err != KERN_SUCCESS) || !MACH_PORT_VALID (task)) {
task = task_for_pid_workaround (pid);
if (task == MACH_PORT_NULL) {
task = task_for_pid_ios9pangu (pid);
if (task != MACH_PORT_NULL) {
//eprintf ("Failed to get task %d for pid %d.\n", (int)task, (int)pid);
//eprintf ("Missing priviledges? 0x%x: %s\n", err, MACH_ERROR_STRING (err));
return -1;
}
}
}
old_task = task;
old_pid = pid;
return task;
}
