Implement ideviceinfo in cpp

cpp/examples/ideviceinfo.cpp

@@ -15,16 +15,19 @@ int main() {
     if (!u) {
         std::cerr << "failed to connect to usbmuxd";
         std::cerr << e.message;
+        return 1;
     }
 
     auto devices = u->get_devices(e);
     if (!devices) {
         std::cerr << "failed to get devices from usbmuxd";
         std::cerr << e.message;
+        return 1;
     }
     if (devices->empty()) {
         std::cerr << "no devices connected";
         std::cerr << e.message;
+        return 1;
     }
 
     auto& dev  = (*devices)[0];
@@ -55,7 +58,14 @@ int main() {
         return 1;
     }
 
-    auto values = client->get_value("", "", e);
+    auto pf = prov->get_pairing_file(e);
+    if (!pf) {
+        std::cerr << "failed to get pairing file: " << e.message << "\n";
+        return 1;
+    }
+    client->start_session(*pf, e);
+
+    auto values = client->get_value(NULL, NULL, e);
     if (!values) {
         std::cerr << "get values failed: " << e.message << "\n";
         return 1;

cpp/include/idevice++/provider.hpp

@@ -37,6 +37,8 @@ class Provider {
     Provider(const Provider&)                         = delete;
     Provider&              operator=(const Provider&) = delete;
 
+    std::optional<PairingFile> get_pairing_file(FfiError& err);
+
     IdeviceProviderHandle* raw() const noexcept { return handle_.get(); }
     static Provider        adopt(IdeviceProviderHandle* h) noexcept { return Provider(h); }
     IdeviceProviderHandle* release() noexcept { return handle_.release(); }

cpp/src/provider.cpp

@@ -49,4 +49,15 @@ std::optional<Provider> Provider::usbmuxd_new(UsbmuxdAddr&&      addr,
     return Provider::adopt(out);
 }
 
+std::optional<PairingFile> Provider::get_pairing_file(FfiError& err) {
+
+    IdevicePairingFile* out = nullptr;
+    if (IdeviceFfiError* e = idevice_provider_get_pairing_file(handle_.get(), &out)) {
+      err = FfiError(e);
+        return std::nullopt;
+    }
+    
+    return PairingFile(out);
+}
+
 } // namespace IdeviceFFI