static void runServer()
{
IOHIDEventSystemRef eventSystem = IOHIDEventSystemCreate(kCFAllocatorDefault);
IOHIDNotificationRef notification = NULL;
require(eventSystem, exit);
IOHIDEventSystemOpen(eventSystem, eventCallback, NULL, NULL, 0);
if ( !__serviceNotifications )
__serviceNotifications = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CFArrayRef services = IOHIDEventSystemCopyMatchingServices(eventSystem, NULL, servicesAddedCallback, NULL, NULL, ¬ification);
if ( services ) {
servicesAddedCallback(NULL, NULL, NULL, services);
CFRelease(services);
}
CFRunLoopRun();
exit:
if ( eventSystem )
CFRelease(eventSystem);
}
int main(UNUSED int argc, char **argv) {
pid_t pid = argv[1] ? atoi(argv[1]) : 1; /* for testing */
void *event_system = IOHIDEventSystemCreate(NULL);
if (!event_system) {
ib_log("couldn't create HID event system");
} else {
/* consumer page -> Volume Increment */
if (button_pressed(event_system, 0x0c, 0xe9) ||
/* telephony page -> Flash */
button_pressed(event_system, 0x0b, 0x21)) {
ib_log("disabling due to button press");
return 0;
}
}
mach_port_t port = 0;
kern_return_t kr = mach_port_allocate(mach_task_self(),
MACH_PORT_RIGHT_RECEIVE,
&port);
if (kr) {
ib_log("mach_port_allocate: %x", kr);
return 0;
}
const char *lib = "/Library/Substitute/Helpers/posixspawn-hook.dylib";
struct shuttle shuttle = {
.type = SUBSTITUTE_SHUTTLE_MACH_PORT,
.u.mach.right_type = MACH_MSG_TYPE_MAKE_SEND,
.u.mach.port = port
};
char *error;
int ret = substitute_dlopen_in_pid(pid, lib, 0, &shuttle, 1, &error);
if (ret) {
ib_log("substitute_dlopen_in_pid: %s/%s",
substitute_strerror(ret), error);
return 0;
}
/* wait for it to finish */
static struct {
mach_msg_header_t hdr;
mach_msg_trailer_t huh;
} msg;
kr = mach_msg_overwrite(NULL, MACH_RCV_MSG, 0, sizeof(msg), port,
MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL,
&msg.hdr, 0);
if (kr)
ib_log("mach_msg_overwrite: %x", kr);
}