Use the canonical idiom for sockaddr_storage.

This works out a bit silly/ugly because the bits/ header file has the
wrong name, so I've also changed the map from kernel struct to boolean
to be a map from kernel struct to filename. That not only fixes this,
it's a bit more readable too. (Just yesterday, when I had no real reason
to change it, I was asking myself "why is this a boolean?"!)

Bug: http://b/236042740
Test: treehugger
Change-Id: I3eee25b493ea97d46cc5dc5fde07f7c5e77d2a46
diff --git a/libc/kernel/tools/defaults.py b/libc/kernel/tools/defaults.py
index 9b357f1..1d7b427 100644
--- a/libc/kernel/tools/defaults.py
+++ b/libc/kernel/tools/defaults.py
@@ -28,23 +28,23 @@
     }
 
 # This is the set of known kernel data structures we want to remove from
-# the final headers. If the map value is False, that means that in
-# addition to removing the structure, add an #include <bits/STRUCT.h>
-# to the file.
+# the final headers. If the map value is non-empty, that means that in
+# addition to removing the structure, add a #include to the file.
 kernel_structs_to_remove = {
-    # Remove the structures since they are still the same as
+    # Remove these structures since they are still the same as
     # timeval, itimerval.
-    "__kernel_old_timeval": True,
-    "__kernel_old_itimerval": True,
+    "__kernel_old_timeval": None,
+    "__kernel_old_itimerval": None,
     # Replace all of the below structures with #include <bits/STRUCT.h>
-    "epoll_event": False,
-    "flock": False,
-    "flock64": False,
-    "in_addr": False,
-    "ip_mreq_source": False,
-    "ip_msfilter": False,
-    "tcphdr": False,
-    "timespec": False,
+    "__kernel_sockaddr_storage": "bits/sockaddr_storage.h",
+    "epoll_event": "bits/epoll_event.h",
+    "flock": "bits/flock.h",
+    "flock64": "bits/flock64.h",
+    "in_addr": "bits/in_addr.h",
+    "ip_mreq_source": "bits/ip_mreq_source.h",
+    "ip_msfilter": "bits/ip_msfilter.h",
+    "tcphdr": "bits/tcphdr.h",
+    "timespec": "bits/timespec.h",
     }
 
 # define to true if you want to remove all defined(CONFIG_FOO) tests
@@ -92,6 +92,8 @@
     "__kernel_old_timeval": "timeval",
     # Do the same for __kernel_old_itimerval as for timeval.
     "__kernel_old_itimerval": "itimerval",
+    # Do the same for __kernel_sockaddr_storage.
+    "__kernel_sockaddr_storage": "sockaddr_storage",
     # Replace __packed with __attribute__((__packed__)) to avoid depending
     # on sys/cdefs.h
     "__packed": "__attribute__((__packed__))",