swig: Enforce non-NULL

Currently, the application segfaults if you
pass None (from python) to any of the API
functions that don't expect a NULL value.
Fix this by marking them NONNULL in swig
which will cause a ValueError.

Acked-by: Darren Hart <dvhltc@us.ibm.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/ctracecmd.i b/ctracecmd.i
index 10ade49..51e98d5 100644
--- a/ctracecmd.i
+++ b/ctracecmd.i
@@ -1,6 +1,10 @@
 // tracecmd.i
 %module ctracecmd
-%include typemaps.i
+%include "typemaps.i"
+%include "constraints.i"
+
+%apply Pointer NONNULL { struct tracecmd_input *handle };
+%apply Pointer NONNULL { struct pevent *pevent };
 
 /* return a (rec,cpu) tuple in python */
 extern struct record *tracecmd_read_at(struct tracecmd_input *handle,