Separate headers into cpp source files

ffi/src/lib.rs

@@ -315,3 +315,18 @@ pub unsafe extern "C" fn idevice_string_free(string: *mut c_char) {
         let _ = unsafe { CString::from_raw(string) };
     }
 }
+
+/// Frees data allocated by this library
+///
+/// # Arguments
+/// * [`data`] - The data to free
+///
+/// # Safety
+/// `data` must be a valid pointer to data that was allocated by this library,
+/// or NULL (in which case this function does nothing)
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn idevice_data_free(data: *mut u8, len: usize) {
+    if !data.is_null() {
+        let _ = unsafe { std::slice::from_raw_parts(data, len) };
+    }
+}

ffi/src/lockdown.rs

@@ -12,7 +12,7 @@ use crate::{
 
 pub struct LockdowndClientHandle(pub LockdownClient);
 
-/// Connects to lockdownd service using TCP provider
+/// Connects to lockdownd service using provider
 ///
 /// # Arguments
 /// * [`provider`] - An IdeviceProvider

ffi/src/usbmuxd.rs

@@ -428,6 +428,26 @@ pub unsafe extern "C" fn idevice_usbmuxd_unix_addr_new(
     null_mut()
 }
 
+/// Creates a default UsbmuxdAddr struct for the platform
+///
+/// # Arguments
+/// * [`usbmuxd_addr`] - On success, will be set to point to a newly allocated UsbmuxdAddr handle
+///
+/// # Returns
+/// An IdeviceFfiError on error, null on success
+///
+/// # Safety
+/// `usbmuxd_addr` must be a valid, non-null pointer to a location where the handle will be stored
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn idevice_usbmuxd_default_addr_new(
+    usbmuxd_addr: *mut *mut UsbmuxdAddrHandle,
+) -> *mut IdeviceFfiError {
+    let addr = UsbmuxdAddr::default();
+    let boxed = Box::new(UsbmuxdAddrHandle(addr));
+    unsafe { *usbmuxd_addr = Box::into_raw(boxed) };
+    null_mut()
+}
+
 /// Frees a UsbmuxdAddr handle
 ///
 /// # Arguments