adbd: turn on fdsan warnings.

Test: mma
Test: python test_device.py
Change-Id: Ic90fac0b731b0aa9fa934f4472b0c40f1263c340
diff --git a/daemon/main.cpp b/daemon/main.cpp
index c02cafa..f6f1acc 100644
--- a/daemon/main.cpp
+++ b/daemon/main.cpp
@@ -18,6 +18,7 @@
 
 #include "sysdeps.h"
 
+#include <android/fdsan.h>
 #include <errno.h>
 #include <getopt.h>
 #include <malloc.h>
@@ -177,6 +178,11 @@
 
     signal(SIGPIPE, SIG_IGN);
 
+    auto fdsan_level = android_fdsan_get_error_level();
+    if (fdsan_level == ANDROID_FDSAN_ERROR_LEVEL_DISABLED) {
+        android_fdsan_set_error_level(ANDROID_FDSAN_ERROR_LEVEL_WARN_ONCE);
+    }
+
     init_transport_registration();
 
     // We need to call this even if auth isn't enabled because the file