santad: wait for driver connection before adding prefix filters (#443)

* wait for driver connection before adding prefix filters

* version bump

* fix travis build

.travis.yml

@@ -8,6 +8,7 @@ addons:
   homebrew:
     taps: bazelbuild/tap
     packages: bazelbuild/tap/bazel
+    update: true
 
 script:
  - bazel build :release --show_progress_rate_limit=30.0 -c opt --apple_generate_dsym --color=no --verbose_failures --sandbox_debug

Source/santad/EventProviders/SNTDriverManager.m

@@ -310,6 +310,8 @@ static void driverAppearedHandler(void *info, io_iterator_t iterator) {
 }
 
 - (void)fileModificationPrefixFilterAdd:(NSArray *)filters {
+  while (!self.connectionEstablished) usleep(100000); // 100ms
+
   uint64_t n = 0;
   uint32_t n_len = 1;
 

version.bzl

@@ -1,3 +1,3 @@
 """The version for all Santa components."""
 
-SANTA_VERSION = "1.4"
+SANTA_VERSION = "1.5"