tools: Print meaningful error messages when service startup fails

1 files changed, 3 insertions, 3 deletions

diff --git a/tools/idevicescreenshot.c b/tools/idevicescreenshot.c
index 62bb4a3..9b1ffa3 100644
--- a/tools/idevicescreenshot.c
+++ b/tools/idevicescreenshot.c
@@ -110,9 +110,9 @@ int main(int argc, char **argv)
                 return -1;
         }
 
-        lockdownd_start_service(lckd, "com.apple.mobile.screenshotr", &service);
+        lockdownd_error_t lerr = lockdownd_start_service(lckd, SCREENSHOTR_SERVICE_NAME, &service);
         lockdownd_client_free(lckd);
-        if (service && service->port > 0) {
+        if (lerr == LOCKDOWN_E_SUCCESS) {
                 if (screenshotr_client_new(device, service, &shotr) != SCREENSHOTR_E_SUCCESS) {
                         printf("Could not connect to screenshotr!\n");
                 } else {
@@ -142,7 +142,7 @@ int main(int argc, char **argv)
                         screenshotr_client_free(shotr);
                 }
         } else {
-                printf("Could not start screenshotr service! Remember that you have to mount the Developer disk image on your device if you want to use the screenshotr service.\n");
+                printf("Could not start screenshotr service: %s\nRemember that you have to mount the Developer disk image on your device if you want to use the screenshotr service.\n", lockdownd_strerror(lerr));
         }
 
         if (service)